| 1 | // =============================================================== // |
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| 2 | // // |
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| 3 | // File : adsocket.cxx // |
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| 4 | // Purpose : // |
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| 5 | // // |
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| 6 | // Institute of Microbiology (Technical University Munich) // |
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| 7 | // http://www.arb-home.de/ // |
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| 8 | // // |
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| 9 | // =============================================================== // |
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| 10 | |
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| 11 | #include <unistd.h> |
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| 12 | |
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| 13 | #include <climits> |
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| 14 | #include <cstdarg> |
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| 15 | #include <cctype> |
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| 16 | |
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| 17 | #include <netdb.h> |
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| 18 | #include <netinet/tcp.h> |
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| 19 | #include <signal.h> |
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| 20 | #include <sys/mman.h> |
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| 21 | #include <sys/socket.h> |
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| 22 | #include <sys/stat.h> |
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| 23 | #include <sys/time.h> |
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| 24 | #include <sys/un.h> |
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| 25 | |
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| 26 | #if defined(DARWIN) |
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| 27 | # include <sys/sysctl.h> |
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| 28 | #endif // DARWIN |
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| 29 | |
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| 30 | #include <arb_cs.h> |
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| 31 | #include <arb_str.h> |
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| 32 | #include <arb_strbuf.h> |
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| 33 | #include <arb_file.h> |
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| 34 | #include <arb_sleep.h> |
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| 35 | #include <arb_pathlen.h> |
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| 36 | |
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| 37 | #include "gb_comm.h" |
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| 38 | #include "gb_data.h" |
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| 39 | #include "gb_localdata.h" |
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| 40 | |
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| 41 | #include <SigHandler.h> |
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| 42 | |
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| 43 | #include <algorithm> |
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| 44 | #include <arb_misc.h> |
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| 45 | #include <arb_defs.h> |
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| 46 | |
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| 47 | static int gbcm_pipe_violation_flag = 0; |
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| 48 | void gbcms_sigpipe(int) { |
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| 49 | gbcm_pipe_violation_flag = 1; |
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| 50 | } |
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| 51 | |
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| 52 | // ------------------------------------------------ |
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| 53 | // private read and write socket functions |
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| 54 | |
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| 55 | void gbcm_read_flush() { |
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| 56 | gb_local->write_ptr = gb_local->write_buffer; |
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| 57 | gb_local->write_free = gb_local->write_bufsize; |
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| 58 | } |
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| 59 | |
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| 60 | static long gbcm_read_buffered(int socket, char *ptr, long size) { |
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| 61 | /* write_ptr ptr to not read data |
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| 62 | write_free = write_bufsize-size of non read data; |
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| 63 | */ |
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| 64 | long holding; |
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| 65 | holding = gb_local->write_bufsize - gb_local->write_free; |
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| 66 | if (holding <= 0) { |
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| 67 | holding = read(socket, gb_local->write_buffer, (size_t)gb_local->write_bufsize); |
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| 68 | |
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| 69 | if (holding < 0) |
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| 70 | { |
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| 71 | fprintf(stderr, "Cannot read data from client: len=%li (%s, errno %i)\n", |
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| 72 | holding, strerror(errno), errno); |
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| 73 | return 0; |
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| 74 | } |
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| 75 | gbcm_read_flush(); |
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| 76 | gb_local->write_free-=holding; |
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| 77 | } |
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| 78 | if (size>holding) size = holding; |
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| 79 | memcpy(ptr, gb_local->write_ptr, (int)size); |
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| 80 | gb_local->write_ptr += size; |
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| 81 | gb_local->write_free += size; |
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| 82 | return size; |
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| 83 | } |
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| 84 | |
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| 85 | long gbcm_read(int socket, char *ptr, long size) { |
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| 86 | long leftsize = size; |
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| 87 | while (leftsize) { |
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| 88 | long readsize = gbcm_read_buffered(socket, ptr, leftsize); |
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| 89 | if (readsize<=0) return 0; |
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| 90 | ptr += readsize; |
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| 91 | leftsize -= readsize; |
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| 92 | } |
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| 93 | |
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| 94 | return size; |
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| 95 | } |
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| 96 | |
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| 97 | GBCM_ServerResult gbcm_write_flush(int socket) { |
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| 98 | char *ptr = gb_local->write_buffer; |
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| 99 | long leftsize = gb_local->write_ptr - ptr; |
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| 100 | |
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| 101 | gb_local->write_free = gb_local->write_bufsize; |
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| 102 | |
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| 103 | if (leftsize) { |
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| 104 | gb_local->write_ptr = ptr; |
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| 105 | gbcm_pipe_violation_flag = 0; |
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| 106 | |
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| 107 | long writesize = write(socket, ptr, (size_t)leftsize); |
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| 108 | |
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| 109 | if (gbcm_pipe_violation_flag || writesize<0) { |
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| 110 | if (gb_local->iamclient) { |
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| 111 | fprintf(stderr, "DB_Server is killed, Now I kill myself\n"); |
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| 112 | exit(EXIT_SUCCESS); |
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| 113 | } |
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| 114 | fprintf(stderr, "writesize: %li ppid %i\n", writesize, getppid()); |
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| 115 | return GBCM_SERVER_FAULT; |
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| 116 | } |
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| 117 | ptr += writesize; |
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| 118 | leftsize = leftsize - writesize; |
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| 119 | |
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| 120 | while (leftsize) { |
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| 121 | GB_sleep(10, MS); |
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| 122 | |
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| 123 | writesize = write(socket, ptr, (size_t)leftsize); |
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| 124 | if (gbcm_pipe_violation_flag || writesize<0) { |
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| 125 | if ((int)getppid() <= 1) { |
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| 126 | fprintf(stderr, "DB_Server is killed, Now I kill myself\n"); |
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| 127 | exit(EXIT_SUCCESS); |
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| 128 | } |
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| 129 | fprintf(stderr, "write error\n"); |
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| 130 | return GBCM_SERVER_FAULT; |
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| 131 | } |
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| 132 | ptr += writesize; |
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| 133 | leftsize -= writesize; |
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| 134 | } |
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| 135 | } |
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| 136 | return GBCM_SERVER_OK; |
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| 137 | } |
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| 138 | |
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| 139 | GBCM_ServerResult gbcm_write(int socket, const char *ptr, long size) { |
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| 140 | while (size >= gb_local->write_free) { |
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| 141 | memcpy(gb_local->write_ptr, ptr, (int)gb_local->write_free); |
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| 142 | gb_local->write_ptr += gb_local->write_free; |
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| 143 | size -= gb_local->write_free; |
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| 144 | ptr += gb_local->write_free; |
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| 145 | |
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| 146 | gb_local->write_free = 0; |
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| 147 | if (gbcm_write_flush(socket)) return GBCM_SERVER_FAULT; |
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| 148 | } |
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| 149 | memcpy(gb_local->write_ptr, ptr, (int)size); |
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| 150 | gb_local->write_ptr += size; |
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| 151 | gb_local->write_free -= size; |
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| 152 | return GBCM_SERVER_OK; |
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| 153 | } |
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| 154 | |
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| 155 | static GB_ERROR gbcm_get_m_id(const char *path, char **m_name, long *id) { |
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| 156 | // find the mach name and id |
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| 157 | GB_ERROR error = 0; |
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| 158 | |
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| 159 | if (!path) error = "missing hostname:socketid"; |
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| 160 | else { |
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| 161 | if (strcmp(path, ":") == 0) { |
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| 162 | path = GBS_read_arb_tcp("ARB_DB_SERVER"); |
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| 163 | if (!path) error = GB_await_error(); |
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| 164 | } |
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| 165 | |
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| 166 | if (!error) { |
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| 167 | const char *p = strchr(path, ':'); |
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| 168 | |
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| 169 | if (!p) error = GBS_global_string("missing ':' in '%s'", path); |
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| 170 | else { |
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| 171 | if (path[0] == '*' || path[0] == ':') { // UNIX MODE |
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| 172 | *m_name = strdup(p+1); |
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| 173 | *id = -1; |
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| 174 | } |
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| 175 | else { |
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| 176 | char *mn = GB_strpartdup(path, p-1); |
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| 177 | |
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| 178 | int i = atoi(p + 1); |
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| 179 | if ((i < 1) || (i > 4096)) { |
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| 180 | error = GBS_global_string("socketnumber %i not in [1..4096]", i); |
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| 181 | } |
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| 182 | |
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| 183 | if (!error) { |
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| 184 | *m_name = mn; |
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| 185 | *id = i; |
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| 186 | } |
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| 187 | else { |
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| 188 | free(mn); |
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| 189 | } |
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| 190 | } |
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| 191 | } |
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| 192 | } |
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| 193 | } |
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| 194 | |
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| 195 | if (error) error = GBS_global_string("OPEN_ARB_DB_CLIENT ERROR: %s", error); |
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| 196 | return error; |
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| 197 | } |
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| 198 | |
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| 199 | GB_ERROR gbcm_open_socket(const char *path, long delay2, long do_connect, int *psocket, char **unix_name) { |
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| 200 | char *machName = 0; |
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| 201 | long socketID; |
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| 202 | GB_ERROR err = gbcm_get_m_id(path, &machName, &socketID); |
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| 203 | if (err) { |
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| 204 | free(machName); |
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| 205 | return err; |
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| 206 | } |
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| 207 | |
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| 208 | if (socketID >= 0) { // TCP |
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| 209 | sockaddr_in so_ad; |
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| 210 | memset((char *)&so_ad, 0, sizeof(sockaddr_in)); |
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| 211 | *psocket = socket(PF_INET, SOCK_STREAM, 0); |
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| 212 | if (*psocket <= 0) { |
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| 213 | return "CANNOT CREATE SOCKET"; |
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| 214 | } |
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| 215 | |
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| 216 | hostent *he; |
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| 217 | arb_gethostbyname(machName, he, err); |
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| 218 | if (err) return err; |
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| 219 | |
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| 220 | in_addr addr; // union -> u_long |
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| 221 | |
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| 222 | // simply take first address |
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| 223 | addr.s_addr = *(long *) (he->h_addr); |
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| 224 | so_ad.sin_addr = addr; |
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| 225 | so_ad.sin_family = AF_INET; |
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| 226 | so_ad.sin_port = htons((unsigned short)socketID); // @@@ = pb_socket |
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| 227 | |
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| 228 | if (do_connect) { |
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| 229 | if (connect(*psocket, (sockaddr *)(&so_ad), sizeof(so_ad))) { |
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| 230 | GB_warningf("Cannot connect to %s:%li errno %i", machName, socketID, errno); |
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| 231 | return ""; |
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| 232 | } |
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| 233 | } |
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| 234 | else { |
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| 235 | int one = 1; |
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| 236 | setsockopt(*psocket, SOL_SOCKET, SO_REUSEADDR, (const char *)&one, sizeof(one)); |
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| 237 | if (bind(*psocket, (sockaddr *)(&so_ad), sizeof(so_ad))) { |
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| 238 | return "Could not open socket on Server"; |
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| 239 | } |
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| 240 | } |
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| 241 | free(machName); |
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| 242 | if (delay2 == TCP_NODELAY) { |
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| 243 | GB_UINT4 optval; |
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| 244 | optval = 1; |
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| 245 | setsockopt(*psocket, IPPROTO_TCP, TCP_NODELAY, (char *)&optval, sizeof (GB_UINT4)); |
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| 246 | } |
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| 247 | *unix_name = 0; |
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| 248 | return 0; |
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| 249 | } |
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| 250 | else { // UNIX |
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| 251 | sockaddr_un so_ad; |
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| 252 | if (strlen(machName) >= sizeof(so_ad.sun_path)) { |
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| 253 | return "Could not open socket on Server (socket name too long)"; |
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| 254 | } |
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| 255 | memset((char *)&so_ad, 0, sizeof(so_ad)); |
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| 256 | *psocket = socket(PF_UNIX, SOCK_STREAM, 0); |
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| 257 | if (*psocket <= 0) { |
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| 258 | return "CANNOT CREATE SOCKET"; |
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| 259 | } |
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| 260 | so_ad.sun_family = AF_UNIX; |
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| 261 | strcpy(so_ad.sun_path, machName); |
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| 262 | |
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| 263 | if (do_connect) { |
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| 264 | if (connect(*psocket, (sockaddr*)(&so_ad), strlen(so_ad.sun_path)+2)) { |
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| 265 | free(machName); |
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| 266 | return ""; |
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| 267 | } |
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| 268 | } |
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| 269 | else { |
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| 270 | if (unlink(machName) == 0) printf("old socket found\n"); |
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| 271 | if (bind(*psocket, (sockaddr*)(&so_ad), strlen(machName)+2)) { |
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| 272 | free(machName); |
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| 273 | return "Could not open socket on Server"; |
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| 274 | } |
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| 275 | if (chmod(machName, 0777)) return GB_export_errorf("Cannot change mode of socket '%s'", machName); |
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| 276 | } |
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| 277 | *unix_name = machName; |
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| 278 | return 0; |
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| 279 | } |
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| 280 | } |
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| 281 | |
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| 282 | #if defined(WARN_TODO) |
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| 283 | #warning gbcms_close is unused |
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| 284 | #endif |
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| 285 | long gbcms_close(gbcmc_comm *link) { |
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| 286 | if (link->socket) { |
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| 287 | close(link->socket); |
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| 288 | link->socket = 0; |
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| 289 | if (link->unix_name) { |
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| 290 | unlink(link->unix_name); |
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| 291 | } |
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| 292 | } |
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| 293 | return 0; |
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| 294 | } |
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| 295 | |
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| 296 | static void gbcmc_suppress_sigpipe(int) { |
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| 297 | } |
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| 298 | |
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| 299 | inline bool is_default_or_ignore_or_own_sighandler(SigHandler sh) { |
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| 300 | return sh == gbcmc_suppress_sigpipe || is_default_or_ignore_sighandler(sh); |
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| 301 | } |
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| 302 | |
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| 303 | gbcmc_comm *gbcmc_open(const char *path) { |
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| 304 | gbcmc_comm *link = (gbcmc_comm *)GB_calloc(sizeof(gbcmc_comm), 1); |
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| 305 | GB_ERROR err = gbcm_open_socket(path, TCP_NODELAY, 1, &link->socket, &link->unix_name); |
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| 306 | |
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| 307 | if (err) { |
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| 308 | if (link->unix_name) free(link->unix_name); // @@@ |
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| 309 | free(link); |
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| 310 | if (*err) { |
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| 311 | GB_internal_errorf("ARB_DB_CLIENT_OPEN\n(Reason: %s)", err); |
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| 312 | } |
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| 313 | return 0; |
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| 314 | } |
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| 315 | ASSERT_RESULT_PREDICATE(is_default_or_ignore_or_own_sighandler, INSTALL_SIGHANDLER(SIGPIPE, gbcmc_suppress_sigpipe, "gbcmc_open")); |
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| 316 | gb_local->iamclient = true; |
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| 317 | return link; |
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| 318 | } |
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| 319 | |
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| 320 | long gbcm_write_two(int socket, long a, long c) |
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| 321 | { |
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| 322 | long ia[3]; |
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| 323 | ia[0] = a; |
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| 324 | ia[1] = 3; |
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| 325 | ia[2] = c; |
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| 326 | if (!socket) return 1; |
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| 327 | return gbcm_write(socket, (const char *)ia, sizeof(long)*3); |
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| 328 | } |
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| 329 | |
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| 330 | |
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| 331 | GBCM_ServerResult gbcm_read_two(int socket, long a, long *b, long *c) { |
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| 332 | /*! read two values: length and any user long |
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| 333 | * |
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| 334 | * if data is send by gbcm_write_two() then @param b should be zero |
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| 335 | * and is not used! |
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| 336 | */ |
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| 337 | |
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| 338 | long ia[3]; |
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| 339 | long size; |
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| 340 | size = gbcm_read(socket, (char *)&(ia[0]), sizeof(long)*3); |
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| 341 | if (size != sizeof(long) * 3) { |
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| 342 | GB_internal_errorf("receive failed: %zu bytes expected, %li got, keyword %lX", |
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| 343 | sizeof(long) * 3, size, a); |
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| 344 | return GBCM_SERVER_FAULT; |
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| 345 | } |
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| 346 | if (ia[0] != a) { |
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| 347 | GB_internal_errorf("received keyword failed %lx != %lx\n", ia[0], a); |
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| 348 | return GBCM_SERVER_FAULT; |
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| 349 | } |
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| 350 | if (b) { |
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| 351 | *b = ia[1]; |
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| 352 | } |
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| 353 | else { |
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| 354 | if (ia[1]!=3) { |
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| 355 | GB_internal_error("receive failed: size not 3\n"); |
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| 356 | return GBCM_SERVER_FAULT; |
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| 357 | } |
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| 358 | } |
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| 359 | *c = ia[2]; |
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| 360 | return GBCM_SERVER_OK; |
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| 361 | } |
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| 362 | |
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| 363 | GBCM_ServerResult gbcm_write_string(int socket, const char *key) { |
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| 364 | if (key) { |
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| 365 | size_t len = strlen(key); |
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| 366 | gbcm_write_long(socket, len); |
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| 367 | if (len) gbcm_write(socket, key, len); |
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| 368 | } |
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| 369 | else { |
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| 370 | gbcm_write_long(socket, -1); |
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| 371 | } |
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| 372 | return GBCM_SERVER_OK; |
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| 373 | } |
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| 374 | |
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| 375 | char *gbcm_read_string(int socket) |
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| 376 | { |
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| 377 | char *key; |
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| 378 | long len = gbcm_read_long(socket); |
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| 379 | |
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| 380 | if (len) { |
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| 381 | if (len>0) { |
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| 382 | key = (char *)GB_calloc(sizeof(char), (size_t)len+1); |
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| 383 | gbcm_read(socket, key, len); |
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| 384 | } |
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| 385 | else { |
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| 386 | key = 0; |
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| 387 | } |
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| 388 | } |
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| 389 | else { |
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| 390 | key = strdup(""); |
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| 391 | } |
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| 392 | |
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| 393 | return key; |
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| 394 | } |
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| 395 | |
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| 396 | GBCM_ServerResult gbcm_write_long(int socket, long data) { |
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| 397 | gbcm_write(socket, (char*)&data, sizeof(data)); |
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| 398 | return GBCM_SERVER_OK; |
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| 399 | } |
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| 400 | |
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| 401 | long gbcm_read_long(int socket) { |
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| 402 | long data; |
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| 403 | gbcm_read(socket, (char*)&data, sizeof(data)); |
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| 404 | return data; |
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| 405 | } |
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| 406 | |
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| 407 | char *GB_read_fp(FILE *in) { |
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| 408 | /*! like GB_read_file(), but works on already open file |
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| 409 | * (useful together with GB_fopen_tempfile()) |
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| 410 | * |
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| 411 | * Note: File should be opened in text-mode (e.g. "rt") |
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| 412 | */ |
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| 413 | |
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| 414 | GBS_strstruct *buf = GBS_stropen(4096); |
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| 415 | int c; |
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| 416 | |
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| 417 | while (EOF != (c = getc(in))) { |
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| 418 | GBS_chrcat(buf, c); |
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| 419 | } |
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| 420 | return GBS_strclose(buf); |
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| 421 | } |
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| 422 | |
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| 423 | char *GB_read_file(const char *path) { // consider using class FileContent instead |
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| 424 | /*! read content of file 'path' into string (heap-copy) |
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| 425 | * |
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| 426 | * if path is '-', read from STDIN |
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| 427 | * |
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| 428 | * @return NULL in case of error (use GB_await_error() to get the message) |
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| 429 | */ |
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| 430 | char *result = 0; |
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| 431 | |
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| 432 | if (strcmp(path, "-") == 0) { |
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| 433 | result = GB_read_fp(stdin); |
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| 434 | } |
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| 435 | else { |
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| 436 | char *epath = GBS_eval_env(path); |
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| 437 | |
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| 438 | if (epath) { |
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| 439 | FILE *in = fopen(epath, "rt"); |
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| 440 | |
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| 441 | if (!in) GB_export_error(GB_IO_error("reading", epath)); |
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| 442 | else { |
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| 443 | long data_size = GB_size_of_file(epath); |
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| 444 | |
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| 445 | if (data_size >= 0) { |
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| 446 | result = (char*)malloc(data_size+1); |
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| 447 | |
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| 448 | data_size = fread(result, 1, data_size, in); |
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| 449 | result[data_size] = 0; |
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| 450 | } |
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| 451 | fclose(in); |
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| 452 | } |
|---|
| 453 | } |
|---|
| 454 | free(epath); |
|---|
| 455 | } |
|---|
| 456 | return result; |
|---|
| 457 | } |
|---|
| 458 | |
|---|
| 459 | char *GB_map_FILE(FILE *in, int writeable) { |
|---|
| 460 | int fi = fileno(in); |
|---|
| 461 | size_t size = GB_size_of_FILE(in); |
|---|
| 462 | char *buffer; |
|---|
| 463 | if (size<=0) { |
|---|
| 464 | GB_export_error("GB_map_file: sorry file not found"); |
|---|
| 465 | return NULL; |
|---|
| 466 | } |
|---|
| 467 | if (writeable) { |
|---|
| 468 | buffer = (char*)mmap(NULL, size, PROT_READ | PROT_WRITE, MAP_PRIVATE, fi, 0); |
|---|
| 469 | } |
|---|
| 470 | else { |
|---|
| 471 | buffer = (char*)mmap(NULL, size, PROT_READ, MAP_SHARED, fi, 0); |
|---|
| 472 | } |
|---|
| 473 | if (buffer == MAP_FAILED) { |
|---|
| 474 | GB_export_errorf("GB_map_file: Error: Out of Memory: mmap failed (errno: %i)", errno); |
|---|
| 475 | return NULL; |
|---|
| 476 | } |
|---|
| 477 | return buffer; |
|---|
| 478 | } |
|---|
| 479 | |
|---|
| 480 | char *GB_map_file(const char *path, int writeable) { |
|---|
| 481 | FILE *in; |
|---|
| 482 | char *buffer; |
|---|
| 483 | in = fopen(path, "r"); |
|---|
| 484 | if (!in) { |
|---|
| 485 | GB_export_errorf("GB_map_file: sorry file '%s' not readable", path); |
|---|
| 486 | return NULL; |
|---|
| 487 | } |
|---|
| 488 | buffer = GB_map_FILE(in, writeable); |
|---|
| 489 | fclose(in); |
|---|
| 490 | return buffer; |
|---|
| 491 | } |
|---|
| 492 | |
|---|
| 493 | GB_ULONG GB_time_of_day() { |
|---|
| 494 | timeval tp; |
|---|
| 495 | if (gettimeofday(&tp, 0)) return 0; |
|---|
| 496 | return tp.tv_sec; |
|---|
| 497 | } |
|---|
| 498 | |
|---|
| 499 | GB_ERROR GB_textprint(const char *path) { |
|---|
| 500 | // goes to header: __ATTR__USERESULT |
|---|
| 501 | char *fpath = GBS_eval_env(path); |
|---|
| 502 | const char *command = GBS_global_string("arb_textprint '%s' &", fpath); |
|---|
| 503 | GB_ERROR error = GBK_system(command); |
|---|
| 504 | error = GB_failedTo_error("print textfile", fpath, error); |
|---|
| 505 | free(fpath); |
|---|
| 506 | return error; |
|---|
| 507 | } |
|---|
| 508 | |
|---|
| 509 | // -------------------------------------------------------------------------------- |
|---|
| 510 | |
|---|
| 511 | static GB_CSTR getenv_ignore_empty(GB_CSTR envvar) { |
|---|
| 512 | GB_CSTR result = getenv(envvar); |
|---|
| 513 | return (result && result[0]) ? result : 0; |
|---|
| 514 | } |
|---|
| 515 | |
|---|
| 516 | static GB_CSTR GB_getenvPATH() { |
|---|
| 517 | static const char *path = 0; |
|---|
| 518 | if (!path) { |
|---|
| 519 | path = getenv_ignore_empty("PATH"); |
|---|
| 520 | if (!path) { |
|---|
| 521 | path = GBS_eval_env("/bin:/usr/bin:$(ARBHOME)/bin"); |
|---|
| 522 | GB_informationf("Your PATH variable is empty - using '%s' as search path.", path); |
|---|
| 523 | } |
|---|
| 524 | else { |
|---|
| 525 | char *arbbin = GBS_eval_env("$(ARBHOME)/bin"); |
|---|
| 526 | if (strstr(path, arbbin) == 0) { |
|---|
| 527 | GB_warningf("Your PATH variable does not contain '%s'. Things may not work as expected.", arbbin); |
|---|
| 528 | } |
|---|
| 529 | free(arbbin); |
|---|
| 530 | } |
|---|
| 531 | } |
|---|
| 532 | return path; |
|---|
| 533 | } |
|---|
| 534 | |
|---|
| 535 | // -------------------------------------------------------------------------------- |
|---|
| 536 | // Functions to find an executable |
|---|
| 537 | |
|---|
| 538 | char *GB_executable(GB_CSTR exe_name) { |
|---|
| 539 | GB_CSTR path = GB_getenvPATH(); |
|---|
| 540 | char *buffer = GB_give_buffer(strlen(path)+1+strlen(exe_name)+1); |
|---|
| 541 | const char *start = path; |
|---|
| 542 | int found = 0; |
|---|
| 543 | |
|---|
| 544 | while (!found && start) { |
|---|
| 545 | const char *colon = strchr(start, ':'); |
|---|
| 546 | int len = colon ? (colon-start) : (int)strlen(start); |
|---|
| 547 | |
|---|
| 548 | memcpy(buffer, start, len); |
|---|
| 549 | buffer[len] = '/'; |
|---|
| 550 | strcpy(buffer+len+1, exe_name); |
|---|
| 551 | |
|---|
| 552 | found = GB_is_executablefile(buffer); |
|---|
| 553 | start = colon ? colon+1 : 0; |
|---|
| 554 | } |
|---|
| 555 | |
|---|
| 556 | return found ? strdup(buffer) : 0; |
|---|
| 557 | } |
|---|
| 558 | |
|---|
| 559 | static char *GB_find_executable(GB_CSTR description_of_executable, ...) { |
|---|
| 560 | // goes to header: __ATTR__SENTINEL |
|---|
| 561 | /* search the path for an executable with any of the given names (...) |
|---|
| 562 | * if any is found, it's full path is returned |
|---|
| 563 | * if none is found, a warning call is returned (which can be executed without harm) |
|---|
| 564 | */ |
|---|
| 565 | |
|---|
| 566 | GB_CSTR name; |
|---|
| 567 | char *found = 0; |
|---|
| 568 | va_list args; |
|---|
| 569 | |
|---|
| 570 | va_start(args, description_of_executable); |
|---|
| 571 | while (!found && (name = va_arg(args, GB_CSTR)) != 0) found = GB_executable(name); |
|---|
| 572 | va_end(args); |
|---|
| 573 | |
|---|
| 574 | if (!found) { // none of the executables has been found |
|---|
| 575 | char *looked_for; |
|---|
| 576 | char *msg; |
|---|
| 577 | { |
|---|
| 578 | GBS_strstruct *buf = GBS_stropen(100); |
|---|
| 579 | int first = 1; |
|---|
| 580 | |
|---|
| 581 | va_start(args, description_of_executable); |
|---|
| 582 | while ((name = va_arg(args, GB_CSTR)) != 0) { |
|---|
| 583 | if (!first) GBS_strcat(buf, ", "); |
|---|
| 584 | first = 0; |
|---|
| 585 | GBS_strcat(buf, name); |
|---|
| 586 | } |
|---|
| 587 | va_end(args); |
|---|
| 588 | looked_for = GBS_strclose(buf); |
|---|
| 589 | } |
|---|
| 590 | |
|---|
| 591 | msg = GBS_global_string_copy("Could not find a %s (looked for: %s)", description_of_executable, looked_for); |
|---|
| 592 | GB_warning(msg); |
|---|
| 593 | found = GBS_global_string_copy("echo \"%s\" ; arb_ign Parameters", msg); |
|---|
| 594 | free(msg); |
|---|
| 595 | free(looked_for); |
|---|
| 596 | } |
|---|
| 597 | else { |
|---|
| 598 | GB_informationf("Using %s '%s' ('%s')", description_of_executable, name, found); |
|---|
| 599 | } |
|---|
| 600 | return found; |
|---|
| 601 | } |
|---|
| 602 | |
|---|
| 603 | // -------------------------------------------------------------------------------- |
|---|
| 604 | // Functions to access the environment variables used by ARB: |
|---|
| 605 | |
|---|
| 606 | static char *getenv_executable(GB_CSTR envvar) { |
|---|
| 607 | // get full path of executable defined by 'envvar' |
|---|
| 608 | // returns 0 if |
|---|
| 609 | // - envvar not defined or |
|---|
| 610 | // - not defining an executable (warns about that) |
|---|
| 611 | |
|---|
| 612 | char *result = 0; |
|---|
| 613 | const char *exe_name = getenv_ignore_empty(envvar); |
|---|
| 614 | |
|---|
| 615 | if (exe_name) { |
|---|
| 616 | result = GB_executable(exe_name); |
|---|
| 617 | if (!result) { |
|---|
| 618 | GB_warningf("Environment variable '%s' contains '%s' (which is not an executable)", envvar, exe_name); |
|---|
| 619 | } |
|---|
| 620 | } |
|---|
| 621 | |
|---|
| 622 | return result; |
|---|
| 623 | } |
|---|
| 624 | |
|---|
| 625 | static char *getenv_existing_directory(GB_CSTR envvar) { |
|---|
| 626 | // get full path of directory defined by 'envvar' |
|---|
| 627 | // return 0 if |
|---|
| 628 | // - envvar is not defined or |
|---|
| 629 | // - does not point to a directory (warns about that) |
|---|
| 630 | |
|---|
| 631 | char *result = 0; |
|---|
| 632 | const char *dir_name = getenv_ignore_empty(envvar); |
|---|
| 633 | |
|---|
| 634 | if (dir_name) { |
|---|
| 635 | if (GB_is_directory(dir_name)) { |
|---|
| 636 | result = strdup(dir_name); |
|---|
| 637 | } |
|---|
| 638 | else { |
|---|
| 639 | GB_warningf("Environment variable '%s' should contain the path of an existing directory.\n" |
|---|
| 640 | "(current content '%s' has been ignored.)", envvar, dir_name); |
|---|
| 641 | } |
|---|
| 642 | } |
|---|
| 643 | return result; |
|---|
| 644 | } |
|---|
| 645 | |
|---|
| 646 | static void GB_setenv(const char *var, const char *value) { |
|---|
| 647 | if (setenv(var, value, 1) != 0) { |
|---|
| 648 | GB_warningf("Could not set environment variable '%s'. This might cause problems in subprocesses.\n" |
|---|
| 649 | "(Reason: %s)", var, strerror(errno)); |
|---|
| 650 | } |
|---|
| 651 | } |
|---|
| 652 | |
|---|
| 653 | static GB_CSTR GB_getenvARB_XTERM() { |
|---|
| 654 | static const char *xterm = 0; |
|---|
| 655 | if (!xterm) { |
|---|
| 656 | xterm = getenv_ignore_empty("ARB_XTERM"); // doc in ../HELP_SOURCE/oldhelp/arb_envar.hlp@ARB_XTERM |
|---|
| 657 | if (!xterm) xterm = "xterm -sl 1000 -sb -geometry 120x50"; |
|---|
| 658 | } |
|---|
| 659 | return xterm; |
|---|
| 660 | } |
|---|
| 661 | |
|---|
| 662 | static GB_CSTR GB_getenvARB_XCMD() { |
|---|
| 663 | static const char *xcmd = 0; |
|---|
| 664 | if (!xcmd) { |
|---|
| 665 | xcmd = getenv_ignore_empty("ARB_XCMD"); // doc in ../HELP_SOURCE/oldhelp/arb_envar.hlp@ARB_XCMD |
|---|
| 666 | if (!xcmd) { |
|---|
| 667 | const char *xterm = GB_getenvARB_XTERM(); |
|---|
| 668 | gb_assert(xterm); |
|---|
| 669 | xcmd = GBS_global_string_copy("%s -e", xterm); |
|---|
| 670 | } |
|---|
| 671 | } |
|---|
| 672 | return xcmd; |
|---|
| 673 | } |
|---|
| 674 | |
|---|
| 675 | GB_CSTR GB_getenvUSER() { |
|---|
| 676 | static const char *user = 0; |
|---|
| 677 | if (!user) { |
|---|
| 678 | user = getenv_ignore_empty("USER"); |
|---|
| 679 | if (!user) user = getenv_ignore_empty("LOGNAME"); |
|---|
| 680 | if (!user) { |
|---|
| 681 | user = getenv_ignore_empty("HOME"); |
|---|
| 682 | if (user && strrchr(user, '/')) user = strrchr(user, '/')+1; |
|---|
| 683 | } |
|---|
| 684 | if (!user) { |
|---|
| 685 | fprintf(stderr, "WARNING: Cannot identify user: environment variables USER, LOGNAME and HOME not set\n"); |
|---|
| 686 | user = "UnknownUser"; |
|---|
| 687 | } |
|---|
| 688 | } |
|---|
| 689 | return user; |
|---|
| 690 | } |
|---|
| 691 | |
|---|
| 692 | |
|---|
| 693 | static GB_CSTR GB_getenvHOME() { |
|---|
| 694 | static SmartCharPtr Home; |
|---|
| 695 | if (Home.isNull()) { |
|---|
| 696 | char *home = getenv_existing_directory("HOME"); |
|---|
| 697 | if (!home) { |
|---|
| 698 | home = nulldup(GB_getcwd()); |
|---|
| 699 | if (!home) home = strdup("."); |
|---|
| 700 | fprintf(stderr, "WARNING: Cannot identify user's home directory: environment variable HOME not set\n" |
|---|
| 701 | "Using current directory (%s) as home.\n", home); |
|---|
| 702 | } |
|---|
| 703 | gb_assert(home); |
|---|
| 704 | Home = home; |
|---|
| 705 | } |
|---|
| 706 | return &*Home; |
|---|
| 707 | } |
|---|
| 708 | |
|---|
| 709 | GB_CSTR GB_getenvARBHOME() { |
|---|
| 710 | static SmartCharPtr Arbhome; |
|---|
| 711 | if (Arbhome.isNull()) { |
|---|
| 712 | char *arbhome = getenv_existing_directory("ARBHOME"); // doc in ../HELP_SOURCE/oldhelp/arb_envar.hlp@ARBHOME |
|---|
| 713 | if (!arbhome) { |
|---|
| 714 | fprintf(stderr, "Fatal ERROR: Environment Variable ARBHOME not found !!!\n" |
|---|
| 715 | " Please set 'ARBHOME' to the installation path of ARB\n"); |
|---|
| 716 | exit(EXIT_FAILURE); |
|---|
| 717 | } |
|---|
| 718 | Arbhome = arbhome; |
|---|
| 719 | } |
|---|
| 720 | return &*Arbhome; |
|---|
| 721 | } |
|---|
| 722 | |
|---|
| 723 | GB_CSTR GB_getenvARBMACRO() { |
|---|
| 724 | static const char *am = 0; |
|---|
| 725 | if (!am) { |
|---|
| 726 | am = getenv_existing_directory("ARBMACRO"); // doc in ../HELP_SOURCE/oldhelp/arb_envar.hlp@ARBMACRO |
|---|
| 727 | if (!am) am = strdup(GB_path_in_ARBLIB("macros")); |
|---|
| 728 | } |
|---|
| 729 | return am; |
|---|
| 730 | } |
|---|
| 731 | |
|---|
| 732 | static char *getenv_autodirectory(const char *envvar, const char *defaultDirectory) { |
|---|
| 733 | // if environment variable 'envvar' contains an existing directory -> use that |
|---|
| 734 | // otherwise fallback to 'defaultDirectory' (create if not existing) |
|---|
| 735 | // return heap-copy of full directory name |
|---|
| 736 | char *dir = getenv_existing_directory(envvar); |
|---|
| 737 | if (!dir) { |
|---|
| 738 | dir = GBS_eval_env(defaultDirectory); |
|---|
| 739 | if (!GB_is_directory(dir)) { |
|---|
| 740 | GB_ERROR error = GB_create_directory(dir); |
|---|
| 741 | if (error) GB_warning(error); |
|---|
| 742 | } |
|---|
| 743 | } |
|---|
| 744 | return dir; |
|---|
| 745 | } |
|---|
| 746 | |
|---|
| 747 | GB_CSTR GB_getenvARB_PROP() { |
|---|
| 748 | static SmartCharPtr ArbProps; |
|---|
| 749 | if (ArbProps.isNull()) ArbProps = getenv_autodirectory("ARB_PROP", GB_path_in_HOME(".arb_prop")); // doc in ../HELP_SOURCE/oldhelp/arb_envar.hlp@ARB_PROP |
|---|
| 750 | return &*ArbProps; |
|---|
| 751 | } |
|---|
| 752 | |
|---|
| 753 | GB_CSTR GB_getenvARBMACROHOME() { |
|---|
| 754 | static SmartCharPtr ArbMacroHome; |
|---|
| 755 | if (ArbMacroHome.isNull()) ArbMacroHome = getenv_autodirectory("ARBMACROHOME", GB_path_in_arbprop("macros")); // doc in ../HELP_SOURCE/oldhelp/arb_envar.hlp@ARBMACROHOME |
|---|
| 756 | return &*ArbMacroHome; |
|---|
| 757 | } |
|---|
| 758 | |
|---|
| 759 | GB_CSTR GB_getenvARBCONFIG() { |
|---|
| 760 | static SmartCharPtr ArbConfig; |
|---|
| 761 | if (ArbConfig.isNull()) ArbConfig = getenv_autodirectory("ARBCONFIG", GB_path_in_arbprop("cfgSave")); // doc in ../HELP_SOURCE/oldhelp/arb_envar.hlp@ARBCONFIG |
|---|
| 762 | return &*ArbConfig; |
|---|
| 763 | } |
|---|
| 764 | |
|---|
| 765 | GB_CSTR GB_getenvARB_GS() { |
|---|
| 766 | static const char *gs = 0; |
|---|
| 767 | if (!gs) { |
|---|
| 768 | gs = getenv_executable("ARB_GS"); // doc in ../HELP_SOURCE/oldhelp/arb_envar.hlp@ARB_GS |
|---|
| 769 | if (!gs) gs = GB_find_executable("Postscript viewer", "gv", "ghostview", NULL); |
|---|
| 770 | } |
|---|
| 771 | return gs; |
|---|
| 772 | } |
|---|
| 773 | |
|---|
| 774 | GB_CSTR GB_getenvARB_PDFVIEW() { |
|---|
| 775 | static const char *pdfview = 0; |
|---|
| 776 | if (!pdfview) { |
|---|
| 777 | pdfview = getenv_executable("ARB_PDFVIEW"); // doc in ../HELP_SOURCE/oldhelp/arb_envar.hlp@ARB_PDFVIEW |
|---|
| 778 | if (!pdfview) pdfview = GB_find_executable("PDF viewer", "epdfview", "xpdf", "kpdf", "acroread", "gv", NULL); |
|---|
| 779 | } |
|---|
| 780 | return pdfview; |
|---|
| 781 | } |
|---|
| 782 | |
|---|
| 783 | GB_CSTR GB_getenvARB_TEXTEDIT() { |
|---|
| 784 | static const char *editor = 0; |
|---|
| 785 | if (!editor) { |
|---|
| 786 | editor = getenv_executable("ARB_TEXTEDIT"); // doc in ../HELP_SOURCE/oldhelp/arb_envar.hlp@ARB_TEXTEDIT |
|---|
| 787 | if (!editor) editor = "arb_textedit"; // a smart editor shell script |
|---|
| 788 | } |
|---|
| 789 | return editor; |
|---|
| 790 | } |
|---|
| 791 | |
|---|
| 792 | GB_CSTR GB_getenvDOCPATH() { |
|---|
| 793 | static const char *dp = 0; |
|---|
| 794 | if (!dp) { |
|---|
| 795 | char *res = getenv_existing_directory("ARB_DOC"); // doc in ../HELP_SOURCE/oldhelp/arb_envar.hlp@ARB_DOC |
|---|
| 796 | if (res) dp = res; |
|---|
| 797 | else dp = strdup(GB_path_in_ARBLIB("help")); |
|---|
| 798 | } |
|---|
| 799 | return dp; |
|---|
| 800 | } |
|---|
| 801 | |
|---|
| 802 | GB_CSTR GB_getenvHTMLDOCPATH() { |
|---|
| 803 | static const char *dp = 0; |
|---|
| 804 | if (!dp) { |
|---|
| 805 | char *res = getenv_existing_directory("ARB_HTMLDOC"); // doc in ../HELP_SOURCE/oldhelp/arb_envar.hlp@ARB_HTMLDOC |
|---|
| 806 | if (res) dp = res; |
|---|
| 807 | else dp = strdup(GB_path_in_ARBLIB("help_html")); |
|---|
| 808 | } |
|---|
| 809 | return dp; |
|---|
| 810 | |
|---|
| 811 | } |
|---|
| 812 | |
|---|
| 813 | static gb_getenv_hook getenv_hook = NULL; |
|---|
| 814 | |
|---|
| 815 | NOT4PERL gb_getenv_hook GB_install_getenv_hook(gb_getenv_hook hook) { |
|---|
| 816 | // Install 'hook' to be called by GB_getenv(). |
|---|
| 817 | // If the 'hook' returns NULL, normal expansion takes place. |
|---|
| 818 | // Otherwise GB_getenv() returns result from 'hook' |
|---|
| 819 | |
|---|
| 820 | gb_getenv_hook oldHook = getenv_hook; |
|---|
| 821 | getenv_hook = hook; |
|---|
| 822 | return oldHook; |
|---|
| 823 | } |
|---|
| 824 | |
|---|
| 825 | GB_CSTR GB_getenv(const char *env) { |
|---|
| 826 | if (getenv_hook) { |
|---|
| 827 | const char *result = getenv_hook(env); |
|---|
| 828 | if (result) return result; |
|---|
| 829 | } |
|---|
| 830 | if (strncmp(env, "ARB", 3) == 0) { |
|---|
| 831 | // doc in ../HELP_SOURCE/oldhelp/arb_envar.hlp |
|---|
| 832 | |
|---|
| 833 | if (strcmp(env, "ARBHOME") == 0) return GB_getenvARBHOME(); |
|---|
| 834 | if (strcmp(env, "ARB_PROP") == 0) return GB_getenvARB_PROP(); |
|---|
| 835 | if (strcmp(env, "ARBCONFIG") == 0) return GB_getenvARBCONFIG(); |
|---|
| 836 | if (strcmp(env, "ARBMACROHOME") == 0) return GB_getenvARBMACROHOME(); |
|---|
| 837 | if (strcmp(env, "ARBMACRO") == 0) return GB_getenvARBMACRO(); |
|---|
| 838 | |
|---|
| 839 | if (strcmp(env, "ARB_GS") == 0) return GB_getenvARB_GS(); |
|---|
| 840 | if (strcmp(env, "ARB_PDFVIEW") == 0) return GB_getenvARB_PDFVIEW(); |
|---|
| 841 | if (strcmp(env, "ARB_DOC") == 0) return GB_getenvDOCPATH(); |
|---|
| 842 | if (strcmp(env, "ARB_TEXTEDIT") == 0) return GB_getenvARB_TEXTEDIT(); |
|---|
| 843 | if (strcmp(env, "ARB_XTERM") == 0) return GB_getenvARB_XTERM(); |
|---|
| 844 | if (strcmp(env, "ARB_XCMD") == 0) return GB_getenvARB_XCMD(); |
|---|
| 845 | } |
|---|
| 846 | else { |
|---|
| 847 | if (strcmp(env, "HOME") == 0) return GB_getenvHOME(); |
|---|
| 848 | if (strcmp(env, "USER") == 0) return GB_getenvUSER(); |
|---|
| 849 | } |
|---|
| 850 | |
|---|
| 851 | return getenv_ignore_empty(env); |
|---|
| 852 | } |
|---|
| 853 | |
|---|
| 854 | struct export_environment { |
|---|
| 855 | export_environment() { |
|---|
| 856 | // set all variables needed in ARB subprocesses |
|---|
| 857 | GB_setenv("ARB_XCMD", GB_getenvARB_XCMD()); |
|---|
| 858 | } |
|---|
| 859 | }; |
|---|
| 860 | |
|---|
| 861 | static export_environment expenv; |
|---|
| 862 | |
|---|
| 863 | bool GB_host_is_local(const char *hostname) { |
|---|
| 864 | // returns true if host is local |
|---|
| 865 | return |
|---|
| 866 | ARB_stricmp(hostname, "localhost") == 0 || |
|---|
| 867 | ARB_strBeginsWith(hostname, "127.0.0.") || |
|---|
| 868 | ARB_stricmp(hostname, arb_gethostname()) == 0; |
|---|
| 869 | } |
|---|
| 870 | |
|---|
| 871 | static GB_ULONG get_physical_memory() { |
|---|
| 872 | // Returns the physical available memory size in k available for one process |
|---|
| 873 | static GB_ULONG physical_memsize = 0; |
|---|
| 874 | if (!physical_memsize) { |
|---|
| 875 | GB_ULONG memsize; // real existing memory in k |
|---|
| 876 | #if defined(LINUX) |
|---|
| 877 | { |
|---|
| 878 | long pagesize = sysconf(_SC_PAGESIZE); |
|---|
| 879 | long pages = sysconf(_SC_PHYS_PAGES); |
|---|
| 880 | |
|---|
| 881 | memsize = (pagesize/1024) * pages; |
|---|
| 882 | } |
|---|
| 883 | #elif defined(DARWIN) |
|---|
| 884 | #warning memsize detection needs to be tested for Darwin |
|---|
| 885 | { |
|---|
| 886 | int mib[2]; |
|---|
| 887 | uint64_t bytes; |
|---|
| 888 | size_t len; |
|---|
| 889 | |
|---|
| 890 | mib[0] = CTL_HW; |
|---|
| 891 | mib[1] = HW_MEMSIZE; // uint64_t: physical ram size |
|---|
| 892 | len = sizeof(bytes); |
|---|
| 893 | sysctl(mib, 2, &bytes, &len, NULL, 0); |
|---|
| 894 | |
|---|
| 895 | memsize = bytes/1024; |
|---|
| 896 | } |
|---|
| 897 | #else |
|---|
| 898 | memsize = 1024*1024; // assume 1 Gb |
|---|
| 899 | printf("\n" |
|---|
| 900 | "Warning: ARB is not prepared to detect the memory size on your system!\n" |
|---|
| 901 | " (it assumes you have %ul Mb, but does not use more)\n\n", memsize/1024); |
|---|
| 902 | #endif |
|---|
| 903 | |
|---|
| 904 | GB_ULONG net_memsize = memsize - 10240; // reduce by 10Mb |
|---|
| 905 | |
|---|
| 906 | // detect max allocateable memory by ... allocating |
|---|
| 907 | GB_ULONG max_malloc_try = net_memsize*1024; |
|---|
| 908 | GB_ULONG max_malloc = 0; |
|---|
| 909 | { |
|---|
| 910 | GB_ULONG step_size = 4096; |
|---|
| 911 | void *head = 0; |
|---|
| 912 | |
|---|
| 913 | do { |
|---|
| 914 | void **tmp; |
|---|
| 915 | while ((tmp=(void**)malloc(step_size))) { |
|---|
| 916 | *tmp = head; |
|---|
| 917 | head = tmp; |
|---|
| 918 | max_malloc += step_size; |
|---|
| 919 | if (max_malloc >= max_malloc_try) break; |
|---|
| 920 | step_size *= 2; |
|---|
| 921 | } |
|---|
| 922 | } while ((step_size=step_size/2) > sizeof(void*)); |
|---|
| 923 | |
|---|
| 924 | while (head) freeset(head, *(void**)head); |
|---|
| 925 | max_malloc /= 1024; |
|---|
| 926 | } |
|---|
| 927 | |
|---|
| 928 | physical_memsize = std::min(net_memsize, max_malloc); |
|---|
| 929 | |
|---|
| 930 | #if defined(DEBUG) && 0 |
|---|
| 931 | printf("- memsize(real) = %20lu k\n", memsize); |
|---|
| 932 | printf("- memsize(net) = %20lu k\n", net_memsize); |
|---|
| 933 | printf("- memsize(max_malloc) = %20lu k\n", max_malloc); |
|---|
| 934 | #endif // DEBUG |
|---|
| 935 | |
|---|
| 936 | GB_informationf("Visible memory: %s", GBS_readable_size(physical_memsize*1024, "b")); |
|---|
| 937 | } |
|---|
| 938 | |
|---|
| 939 | arb_assert(physical_memsize>0); |
|---|
| 940 | return physical_memsize; |
|---|
| 941 | } |
|---|
| 942 | |
|---|
| 943 | static GB_ULONG parse_env_mem_definition(const char *env_override, GB_ERROR& error) { |
|---|
| 944 | const char *end; |
|---|
| 945 | GB_ULONG num = strtoul(env_override, const_cast<char**>(&end), 10); |
|---|
| 946 | |
|---|
| 947 | error = NULL; |
|---|
| 948 | |
|---|
| 949 | bool valid = num>0 || env_override[0] == '0'; |
|---|
| 950 | if (valid) { |
|---|
| 951 | const char *formatSpec = end; |
|---|
| 952 | double factor = 1; |
|---|
| 953 | |
|---|
| 954 | switch (tolower(formatSpec[0])) { |
|---|
| 955 | case 0: |
|---|
| 956 | num = GB_ULONG(num/1024.0+0.5); // byte->kb |
|---|
| 957 | break; // no format given |
|---|
| 958 | |
|---|
| 959 | case 'g': factor *= 1024; |
|---|
| 960 | case 'm': factor *= 1024; |
|---|
| 961 | case 'k': break; |
|---|
| 962 | |
|---|
| 963 | case '%': |
|---|
| 964 | factor = num/100.0; |
|---|
| 965 | num = get_physical_memory(); |
|---|
| 966 | break; |
|---|
| 967 | |
|---|
| 968 | default: valid = false; break; |
|---|
| 969 | } |
|---|
| 970 | |
|---|
| 971 | if (valid) return GB_ULONG(num*factor+0.5); |
|---|
| 972 | } |
|---|
| 973 | |
|---|
| 974 | error = "expected digits (optionally followed by k, M, G or %)"; |
|---|
| 975 | return 0; |
|---|
| 976 | } |
|---|
| 977 | |
|---|
| 978 | GB_ULONG GB_get_usable_memory() { |
|---|
| 979 | // memory allowed to be used by a single ARB process (in kbyte) |
|---|
| 980 | |
|---|
| 981 | static GB_ULONG useable_memory = 0; |
|---|
| 982 | if (!useable_memory) { |
|---|
| 983 | bool allow_fallback = true; |
|---|
| 984 | const char *env_override = GB_getenv("ARB_MEMORY"); |
|---|
| 985 | const char *via_whom; |
|---|
| 986 | if (env_override) { |
|---|
| 987 | via_whom = "via envar ARB_MEMORY"; |
|---|
| 988 | } |
|---|
| 989 | else { |
|---|
| 990 | FALLBACK: |
|---|
| 991 | env_override = "90%"; // ARB processes do not use more than 90% of physical memory |
|---|
| 992 | via_whom = "by internal default"; |
|---|
| 993 | allow_fallback = false; |
|---|
| 994 | } |
|---|
| 995 | |
|---|
| 996 | gb_assert(env_override); |
|---|
| 997 | |
|---|
| 998 | GB_ERROR env_error; |
|---|
| 999 | GB_ULONG env_memory = parse_env_mem_definition(env_override, env_error); |
|---|
| 1000 | if (env_error) { |
|---|
| 1001 | GB_warningf("Ignoring invalid setting '%s' %s (%s)", env_override, via_whom, env_error); |
|---|
| 1002 | if (allow_fallback) goto FALLBACK; |
|---|
| 1003 | GBK_terminate("failed to detect usable memory"); |
|---|
| 1004 | } |
|---|
| 1005 | |
|---|
| 1006 | GB_informationf("Restricting used memory (%s '%s') to %s", via_whom, env_override, GBS_readable_size(env_memory*1024, "b")); |
|---|
| 1007 | if (!allow_fallback) { |
|---|
| 1008 | GB_informationf("Note: Setting envar ARB_MEMORY will override that restriction (percentage or absolute memsize)"); |
|---|
| 1009 | } |
|---|
| 1010 | useable_memory = env_memory; |
|---|
| 1011 | gb_assert(useable_memory>0 && useable_memory<get_physical_memory()); |
|---|
| 1012 | } |
|---|
| 1013 | return useable_memory; |
|---|
| 1014 | } |
|---|
| 1015 | |
|---|
| 1016 | // --------------------------- |
|---|
| 1017 | // external commands |
|---|
| 1018 | |
|---|
| 1019 | GB_ERROR GB_xterm() { |
|---|
| 1020 | // goes to header: __ATTR__USERESULT |
|---|
| 1021 | const char *xt = GB_getenvARB_XTERM(); |
|---|
| 1022 | const char *command = GBS_global_string("%s &", xt); |
|---|
| 1023 | return GBK_system(command); |
|---|
| 1024 | } |
|---|
| 1025 | |
|---|
| 1026 | GB_ERROR GB_xcmd(const char *cmd, bool background, bool wait_only_if_error) { |
|---|
| 1027 | // goes to header: __ATTR__USERESULT_TODO |
|---|
| 1028 | |
|---|
| 1029 | // runs a command in an xterm |
|---|
| 1030 | // if 'background' is true -> run asynchronous |
|---|
| 1031 | // if 'wait_only_if_error' is true -> asynchronous does wait for keypress only if cmd fails |
|---|
| 1032 | |
|---|
| 1033 | GBS_strstruct *strstruct = GBS_stropen(1024); |
|---|
| 1034 | const char *xcmd = GB_getenvARB_XCMD(); |
|---|
| 1035 | |
|---|
| 1036 | GBS_strcat(strstruct, "("); |
|---|
| 1037 | GBS_strcat(strstruct, xcmd); |
|---|
| 1038 | GBS_strcat(strstruct, " bash -c 'LD_LIBRARY_PATH=\""); |
|---|
| 1039 | GBS_strcat(strstruct, GB_getenv("LD_LIBRARY_PATH")); |
|---|
| 1040 | GBS_strcat(strstruct, "\";export LD_LIBRARY_PATH; ("); |
|---|
| 1041 | GBS_strcat(strstruct, cmd); |
|---|
| 1042 | |
|---|
| 1043 | if (background) { |
|---|
| 1044 | if (wait_only_if_error) { |
|---|
| 1045 | GBS_strcat(strstruct, ") || (echo; echo Press RETURN to close Window; read a)' ) &"); |
|---|
| 1046 | } |
|---|
| 1047 | else { |
|---|
| 1048 | GBS_strcat(strstruct, "; echo; echo Press RETURN to close Window; read a)' ) &"); |
|---|
| 1049 | } |
|---|
| 1050 | } |
|---|
| 1051 | else { |
|---|
| 1052 | if (wait_only_if_error) { |
|---|
| 1053 | GBS_strcat(strstruct, ") || (echo; echo Press RETURN to close Window; read a)' )"); |
|---|
| 1054 | } |
|---|
| 1055 | else { // no wait |
|---|
| 1056 | GBS_strcat(strstruct, " )' ) "); |
|---|
| 1057 | } |
|---|
| 1058 | } |
|---|
| 1059 | |
|---|
| 1060 | GB_ERROR error = GBK_system(GBS_mempntr(strstruct)); |
|---|
| 1061 | GBS_strforget(strstruct); |
|---|
| 1062 | |
|---|
| 1063 | return error; |
|---|
| 1064 | } |
|---|
| 1065 | |
|---|
| 1066 | // --------------------------------------------- |
|---|
| 1067 | // path completion (parts former located in AWT) |
|---|
| 1068 | // @@@ whole section (+ corresponding tests) should move to adfile.cxx |
|---|
| 1069 | |
|---|
| 1070 | static int path_toggle = 0; |
|---|
| 1071 | static char path_buf[2][ARB_PATH_MAX]; |
|---|
| 1072 | |
|---|
| 1073 | static char *use_other_path_buf() { |
|---|
| 1074 | path_toggle = 1-path_toggle; |
|---|
| 1075 | return path_buf[path_toggle]; |
|---|
| 1076 | } |
|---|
| 1077 | |
|---|
| 1078 | GB_CSTR GB_append_suffix(const char *name, const char *suffix) { |
|---|
| 1079 | // if suffix != NULL -> append .suffix |
|---|
| 1080 | // (automatically removes duplicated '.'s) |
|---|
| 1081 | |
|---|
| 1082 | GB_CSTR result = name; |
|---|
| 1083 | if (suffix) { |
|---|
| 1084 | while (suffix[0] == '.') suffix++; |
|---|
| 1085 | if (suffix[0]) { |
|---|
| 1086 | result = GBS_global_string_to_buffer(use_other_path_buf(), ARB_PATH_MAX, "%s.%s", name, suffix); |
|---|
| 1087 | } |
|---|
| 1088 | } |
|---|
| 1089 | return result; |
|---|
| 1090 | } |
|---|
| 1091 | |
|---|
| 1092 | GB_CSTR GB_canonical_path(const char *anypath) { |
|---|
| 1093 | // expands '~' '..' symbolic links etc in 'anypath'. |
|---|
| 1094 | // |
|---|
| 1095 | // Never returns NULL (if called correctly) |
|---|
| 1096 | // Instead might return non-canonical path (when a directory |
|---|
| 1097 | // in 'anypath' does not exist) |
|---|
| 1098 | |
|---|
| 1099 | GB_CSTR result = NULL; |
|---|
| 1100 | if (!anypath) { |
|---|
| 1101 | GB_export_error("NULL path (internal error)"); |
|---|
| 1102 | } |
|---|
| 1103 | else if (!anypath[0]) { |
|---|
| 1104 | result = "/"; |
|---|
| 1105 | } |
|---|
| 1106 | else if (strlen(anypath) >= ARB_PATH_MAX) { |
|---|
| 1107 | GB_export_errorf("Path too long (> %i chars)", ARB_PATH_MAX-1); |
|---|
| 1108 | } |
|---|
| 1109 | else { |
|---|
| 1110 | if (anypath[0] == '~' && (!anypath[1] || anypath[1] == '/')) { |
|---|
| 1111 | GB_CSTR home = GB_getenvHOME(); |
|---|
| 1112 | GB_CSTR homeexp = GBS_global_string("%s%s", home, anypath+1); |
|---|
| 1113 | result = GB_canonical_path(homeexp); |
|---|
| 1114 | GBS_reuse_buffer(homeexp); |
|---|
| 1115 | } |
|---|
| 1116 | else { |
|---|
| 1117 | result = realpath(anypath, path_buf[1-path_toggle]); |
|---|
| 1118 | if (result) { |
|---|
| 1119 | path_toggle = 1-path_toggle; |
|---|
| 1120 | } |
|---|
| 1121 | else { // realpath failed (happens e.g. when using a non-existing path, e.g. if user entered the name of a new file) |
|---|
| 1122 | // => content of path_buf[path_toggle] is UNDEFINED! |
|---|
| 1123 | char *dir, *fullname; |
|---|
| 1124 | GB_split_full_path(anypath, &dir, &fullname, NULL, NULL); |
|---|
| 1125 | |
|---|
| 1126 | const char *canonical_dir = NULL; |
|---|
| 1127 | if (!dir) { |
|---|
| 1128 | gb_assert(!strchr(anypath, '/')); |
|---|
| 1129 | canonical_dir = GB_canonical_path("."); // use working directory |
|---|
| 1130 | } |
|---|
| 1131 | else { |
|---|
| 1132 | gb_assert(strcmp(dir, anypath) != 0); // avoid deadlock |
|---|
| 1133 | canonical_dir = GB_canonical_path(dir); |
|---|
| 1134 | } |
|---|
| 1135 | gb_assert(canonical_dir); |
|---|
| 1136 | |
|---|
| 1137 | // manually resolve '.' and '..' in non-existing parent directories |
|---|
| 1138 | if (strcmp(fullname, "..") == 0) { |
|---|
| 1139 | char *parent; |
|---|
| 1140 | GB_split_full_path(canonical_dir, &parent, NULL, NULL, NULL); |
|---|
| 1141 | if (parent) { |
|---|
| 1142 | result = strcpy(use_other_path_buf(), parent); |
|---|
| 1143 | free(parent); |
|---|
| 1144 | } |
|---|
| 1145 | } |
|---|
| 1146 | else if (strcmp(fullname, ".") == 0) { |
|---|
| 1147 | result = canonical_dir; |
|---|
| 1148 | } |
|---|
| 1149 | |
|---|
| 1150 | if (!result) result = GB_concat_path(canonical_dir, fullname); |
|---|
| 1151 | |
|---|
| 1152 | free(dir); |
|---|
| 1153 | free(fullname); |
|---|
| 1154 | } |
|---|
| 1155 | } |
|---|
| 1156 | gb_assert(result); |
|---|
| 1157 | } |
|---|
| 1158 | return result; |
|---|
| 1159 | } |
|---|
| 1160 | |
|---|
| 1161 | GB_CSTR GB_concat_path(GB_CSTR anypath_left, GB_CSTR anypath_right) { |
|---|
| 1162 | // concats left and right part of a path. |
|---|
| 1163 | // '/' is inserted in-between |
|---|
| 1164 | // |
|---|
| 1165 | // if one of the arguments is NULL => returns the other argument |
|---|
| 1166 | // if both arguments are NULL => return NULL (@@@ maybe forbid?) |
|---|
| 1167 | |
|---|
| 1168 | GB_CSTR result = NULL; |
|---|
| 1169 | |
|---|
| 1170 | if (anypath_right) { |
|---|
| 1171 | if (anypath_right[0] == '/') { |
|---|
| 1172 | result = GB_concat_path(anypath_left, anypath_right+1); |
|---|
| 1173 | } |
|---|
| 1174 | else if (anypath_left && anypath_left[0]) { |
|---|
| 1175 | if (anypath_left[strlen(anypath_left)-1] == '/') { |
|---|
| 1176 | result = GBS_global_string_to_buffer(use_other_path_buf(), sizeof(path_buf[0]), "%s%s", anypath_left, anypath_right); |
|---|
| 1177 | } |
|---|
| 1178 | else { |
|---|
| 1179 | result = GBS_global_string_to_buffer(use_other_path_buf(), sizeof(path_buf[0]), "%s/%s", anypath_left, anypath_right); |
|---|
| 1180 | } |
|---|
| 1181 | } |
|---|
| 1182 | else { |
|---|
| 1183 | result = anypath_right; |
|---|
| 1184 | } |
|---|
| 1185 | } |
|---|
| 1186 | else { |
|---|
| 1187 | result = anypath_left; |
|---|
| 1188 | } |
|---|
| 1189 | |
|---|
| 1190 | return result; |
|---|
| 1191 | } |
|---|
| 1192 | |
|---|
| 1193 | GB_CSTR GB_concat_full_path(const char *anypath_left, const char *anypath_right) { |
|---|
| 1194 | // like GB_concat_path(), but returns the canonical path |
|---|
| 1195 | GB_CSTR result = GB_concat_path(anypath_left, anypath_right); |
|---|
| 1196 | |
|---|
| 1197 | gb_assert(result != anypath_left); // consider using GB_canonical_path() directly |
|---|
| 1198 | gb_assert(result != anypath_right); |
|---|
| 1199 | |
|---|
| 1200 | if (result) result = GB_canonical_path(result); |
|---|
| 1201 | return result; |
|---|
| 1202 | } |
|---|
| 1203 | |
|---|
| 1204 | inline bool is_absolute_path(const char *path) { return path[0] == '/' || path[0] == '~'; } |
|---|
| 1205 | inline bool is_name_of_envvar(const char *name) { |
|---|
| 1206 | for (int i = 0; name[i]; ++i) { |
|---|
| 1207 | if (isalnum(name[i]) || name[i] == '_') continue; |
|---|
| 1208 | return false; |
|---|
| 1209 | } |
|---|
| 1210 | return true; |
|---|
| 1211 | } |
|---|
| 1212 | |
|---|
| 1213 | GB_CSTR GB_unfold_in_directory(const char *relative_directory, const char *path) { |
|---|
| 1214 | // If 'path' is an absolute path, return canonical path. |
|---|
| 1215 | // |
|---|
| 1216 | // Otherwise unfolds relative 'path' using 'relative_directory' as start directory. |
|---|
| 1217 | |
|---|
| 1218 | if (is_absolute_path(path)) return GB_canonical_path(path); |
|---|
| 1219 | return GB_concat_full_path(relative_directory, path); |
|---|
| 1220 | } |
|---|
| 1221 | |
|---|
| 1222 | GB_CSTR GB_unfold_path(const char *pwd_envar, const char *path) { |
|---|
| 1223 | // If 'path' is an absolute path, return canonical path. |
|---|
| 1224 | // |
|---|
| 1225 | // Otherwise unfolds relative 'path' using content of environment |
|---|
| 1226 | // variable 'pwd_envar' as start directory. |
|---|
| 1227 | // If environment variable is not defined, fall-back to current directory |
|---|
| 1228 | |
|---|
| 1229 | gb_assert(is_name_of_envvar(pwd_envar)); |
|---|
| 1230 | if (is_absolute_path(path)) { |
|---|
| 1231 | return GB_canonical_path(path); |
|---|
| 1232 | } |
|---|
| 1233 | |
|---|
| 1234 | const char *pwd = GB_getenv(pwd_envar); |
|---|
| 1235 | if (!pwd) pwd = GB_getcwd(); // @@@ really wanted ? |
|---|
| 1236 | return GB_concat_full_path(pwd, path); |
|---|
| 1237 | } |
|---|
| 1238 | |
|---|
| 1239 | static GB_CSTR GB_path_in_ARBHOME(const char *relative_path_left, const char *anypath_right) { |
|---|
| 1240 | return GB_path_in_ARBHOME(GB_concat_path(relative_path_left, anypath_right)); |
|---|
| 1241 | } |
|---|
| 1242 | |
|---|
| 1243 | GB_CSTR GB_path_in_ARBHOME(const char *relative_path) { |
|---|
| 1244 | return GB_unfold_path("ARBHOME", relative_path); |
|---|
| 1245 | } |
|---|
| 1246 | GB_CSTR GB_path_in_ARBLIB(const char *relative_path) { |
|---|
| 1247 | return GB_path_in_ARBHOME("lib", relative_path); |
|---|
| 1248 | } |
|---|
| 1249 | GB_CSTR GB_path_in_HOME(const char *relative_path) { |
|---|
| 1250 | return GB_unfold_path("HOME", relative_path); |
|---|
| 1251 | } |
|---|
| 1252 | GB_CSTR GB_path_in_arbprop(const char *relative_path) { |
|---|
| 1253 | return GB_unfold_path("ARB_PROP", relative_path); |
|---|
| 1254 | } |
|---|
| 1255 | GB_CSTR GB_path_in_ARBLIB(const char *relative_path_left, const char *anypath_right) { |
|---|
| 1256 | return GB_path_in_ARBLIB(GB_concat_path(relative_path_left, anypath_right)); |
|---|
| 1257 | } |
|---|
| 1258 | GB_CSTR GB_path_in_arb_temp(const char *relative_path) { |
|---|
| 1259 | return GB_path_in_HOME(GB_concat_path(".arb_tmp", relative_path)); |
|---|
| 1260 | } |
|---|
| 1261 | |
|---|
| 1262 | #define GB_PATH_TMP GB_path_in_arb_temp("tmp") // = "~/.arb_tmp/tmp" (used wherever '/tmp' was used in the past) |
|---|
| 1263 | |
|---|
| 1264 | FILE *GB_fopen_tempfile(const char *filename, const char *fmode, char **res_fullname) { |
|---|
| 1265 | // fopens a tempfile |
|---|
| 1266 | // |
|---|
| 1267 | // Returns |
|---|
| 1268 | // - NULL in case of error (which is exported then) |
|---|
| 1269 | // - otherwise returns open filehandle |
|---|
| 1270 | // |
|---|
| 1271 | // Always sets |
|---|
| 1272 | // - heap-copy of used filename in 'res_fullname' (if res_fullname != NULL) |
|---|
| 1273 | // (even if fopen failed) |
|---|
| 1274 | |
|---|
| 1275 | char *file = strdup(GB_concat_path(GB_PATH_TMP, filename)); |
|---|
| 1276 | GB_ERROR error = GB_create_parent_directory(file); |
|---|
| 1277 | FILE *fp = NULL; |
|---|
| 1278 | |
|---|
| 1279 | if (!error) { |
|---|
| 1280 | bool write = strpbrk(fmode, "wa") != 0; |
|---|
| 1281 | |
|---|
| 1282 | fp = fopen(file, fmode); |
|---|
| 1283 | if (fp) { |
|---|
| 1284 | // make file private |
|---|
| 1285 | if (fchmod(fileno(fp), S_IRUSR|S_IWUSR) != 0) { |
|---|
| 1286 | error = GB_IO_error("changing permissions of", file); |
|---|
| 1287 | } |
|---|
| 1288 | } |
|---|
| 1289 | else { |
|---|
| 1290 | error = GB_IO_error(GBS_global_string("opening(%s) tempfile", write ? "write" : "read"), file); |
|---|
| 1291 | } |
|---|
| 1292 | |
|---|
| 1293 | if (res_fullname) { |
|---|
| 1294 | *res_fullname = file ? strdup(file) : 0; |
|---|
| 1295 | } |
|---|
| 1296 | } |
|---|
| 1297 | |
|---|
| 1298 | if (error) { |
|---|
| 1299 | // don't care if anything fails here.. |
|---|
| 1300 | if (fp) { fclose(fp); fp = 0; } |
|---|
| 1301 | if (file) unlink(file); |
|---|
| 1302 | GB_export_error(error); |
|---|
| 1303 | } |
|---|
| 1304 | |
|---|
| 1305 | free(file); |
|---|
| 1306 | |
|---|
| 1307 | return fp; |
|---|
| 1308 | } |
|---|
| 1309 | |
|---|
| 1310 | char *GB_create_tempfile(const char *name) { |
|---|
| 1311 | // creates a tempfile and returns full name of created file |
|---|
| 1312 | // returns NULL in case of error (which is exported then) |
|---|
| 1313 | |
|---|
| 1314 | char *fullname; |
|---|
| 1315 | FILE *out = GB_fopen_tempfile(name, "wt", &fullname); |
|---|
| 1316 | |
|---|
| 1317 | if (out) fclose(out); |
|---|
| 1318 | return fullname; |
|---|
| 1319 | } |
|---|
| 1320 | |
|---|
| 1321 | char *GB_unique_filename(const char *name_prefix, const char *suffix) { |
|---|
| 1322 | // generates a unique (enough) filename |
|---|
| 1323 | // |
|---|
| 1324 | // scheme: name_prefix_USER_PID_COUNT.suffix |
|---|
| 1325 | |
|---|
| 1326 | static int counter = 0; |
|---|
| 1327 | return GBS_global_string_copy("%s_%s_%i_%i.%s", |
|---|
| 1328 | name_prefix, |
|---|
| 1329 | GB_getenvUSER(), getpid(), counter++, |
|---|
| 1330 | suffix); |
|---|
| 1331 | } |
|---|
| 1332 | |
|---|
| 1333 | static GB_HASH *files_to_remove_on_exit = 0; |
|---|
| 1334 | static long exit_remove_file(const char *file, long, void *) { |
|---|
| 1335 | if (unlink(file) != 0) { |
|---|
| 1336 | fprintf(stderr, "Warning: %s\n", GB_IO_error("removing", file)); |
|---|
| 1337 | } |
|---|
| 1338 | return 0; |
|---|
| 1339 | } |
|---|
| 1340 | static void exit_removal() { |
|---|
| 1341 | if (files_to_remove_on_exit) { |
|---|
| 1342 | GBS_hash_do_loop(files_to_remove_on_exit, exit_remove_file, NULL); |
|---|
| 1343 | GBS_free_hash(files_to_remove_on_exit); |
|---|
| 1344 | files_to_remove_on_exit = NULL; |
|---|
| 1345 | } |
|---|
| 1346 | } |
|---|
| 1347 | void GB_remove_on_exit(const char *filename) { |
|---|
| 1348 | // mark a file for removal on exit |
|---|
| 1349 | |
|---|
| 1350 | if (!files_to_remove_on_exit) { |
|---|
| 1351 | files_to_remove_on_exit = GBS_create_hash(20, GB_MIND_CASE); |
|---|
| 1352 | GB_atexit(exit_removal); |
|---|
| 1353 | } |
|---|
| 1354 | GBS_write_hash(files_to_remove_on_exit, filename, 1); |
|---|
| 1355 | } |
|---|
| 1356 | |
|---|
| 1357 | void GB_split_full_path(const char *fullpath, char **res_dir, char **res_fullname, char **res_name_only, char **res_suffix) { |
|---|
| 1358 | // Takes a file (or directory) name and splits it into "path/name.suffix". |
|---|
| 1359 | // If result pointers (res_*) are non-NULL, they are assigned heap-copies of the splitted parts. |
|---|
| 1360 | // If parts are not valid (e.g. cause 'fullpath' doesn't have a .suffix) the corresponding result pointer |
|---|
| 1361 | // is set to NULL. |
|---|
| 1362 | // |
|---|
| 1363 | // The '/' and '.' characters at the split-positions will be removed (not included in the results-strings). |
|---|
| 1364 | // Exceptions: |
|---|
| 1365 | // - the '.' in 'res_fullname' |
|---|
| 1366 | // - the '/' if directory part is the rootdir |
|---|
| 1367 | // |
|---|
| 1368 | // Note: |
|---|
| 1369 | // - if the filename starts with '.' (and that is the only '.' in the filename, an empty filename is returned: "") |
|---|
| 1370 | |
|---|
| 1371 | if (fullpath && fullpath[0]) { |
|---|
| 1372 | const char *lslash = strrchr(fullpath, '/'); |
|---|
| 1373 | const char *name_start = lslash ? lslash+1 : fullpath; |
|---|
| 1374 | const char *ldot = strrchr(lslash ? lslash : fullpath, '.'); |
|---|
| 1375 | const char *terminal = strchr(name_start, 0); |
|---|
| 1376 | |
|---|
| 1377 | gb_assert(terminal); |
|---|
| 1378 | gb_assert(name_start); |
|---|
| 1379 | gb_assert(terminal > fullpath); // ensure (terminal-1) is a valid character position in path |
|---|
| 1380 | |
|---|
| 1381 | if (!lslash && fullpath[0] == '.' && (fullpath[1] == 0 || (fullpath[1] == '.' && fullpath[2] == 0))) { // '.' and '..' |
|---|
| 1382 | if (res_dir) *res_dir = strdup(fullpath); |
|---|
| 1383 | if (res_fullname) *res_fullname = NULL; |
|---|
| 1384 | if (res_name_only) *res_name_only = NULL; |
|---|
| 1385 | if (res_suffix) *res_suffix = NULL; |
|---|
| 1386 | } |
|---|
| 1387 | else { |
|---|
| 1388 | if (res_dir) *res_dir = lslash ? GB_strpartdup(fullpath, lslash == fullpath ? lslash : lslash-1) : NULL; |
|---|
| 1389 | if (res_fullname) *res_fullname = GB_strpartdup(name_start, terminal-1); |
|---|
| 1390 | if (res_name_only) *res_name_only = GB_strpartdup(name_start, ldot ? ldot-1 : terminal-1); |
|---|
| 1391 | if (res_suffix) *res_suffix = ldot ? GB_strpartdup(ldot+1, terminal-1) : NULL; |
|---|
| 1392 | } |
|---|
| 1393 | } |
|---|
| 1394 | else { |
|---|
| 1395 | if (res_dir) *res_dir = NULL; |
|---|
| 1396 | if (res_fullname) *res_fullname = NULL; |
|---|
| 1397 | if (res_name_only) *res_name_only = NULL; |
|---|
| 1398 | if (res_suffix) *res_suffix = NULL; |
|---|
| 1399 | } |
|---|
| 1400 | } |
|---|
| 1401 | |
|---|
| 1402 | |
|---|
| 1403 | // -------------------------------------------------------------------------------- |
|---|
| 1404 | |
|---|
| 1405 | #ifdef UNIT_TESTS |
|---|
| 1406 | |
|---|
| 1407 | #include <test_unit.h> |
|---|
| 1408 | |
|---|
| 1409 | static const char *ANY_NAME = "ANY_NAME"; |
|---|
| 1410 | |
|---|
| 1411 | struct gbcm_get_m_id_TESTER : virtual Noncopyable { |
|---|
| 1412 | const char *path; |
|---|
| 1413 | GB_ERROR error; |
|---|
| 1414 | char *name; |
|---|
| 1415 | long id; |
|---|
| 1416 | |
|---|
| 1417 | gbcm_get_m_id_TESTER(const char *path_) |
|---|
| 1418 | : path(path_) |
|---|
| 1419 | , name(NULL) |
|---|
| 1420 | { |
|---|
| 1421 | error = gbcm_get_m_id(path, &name, &id); |
|---|
| 1422 | } |
|---|
| 1423 | ~gbcm_get_m_id_TESTER() { |
|---|
| 1424 | TEST_EXPECT(!error || !name); // if error occurs no name should exist! |
|---|
| 1425 | TEST_EXPECT(error || name); // either error or result |
|---|
| 1426 | free(name); |
|---|
| 1427 | } |
|---|
| 1428 | |
|---|
| 1429 | bool no_error() { |
|---|
| 1430 | if (error) { |
|---|
| 1431 | fprintf(stderr, "Unexpected error for path '%s': %s\n", path, error); |
|---|
| 1432 | TEST_REJECT(name); |
|---|
| 1433 | } |
|---|
| 1434 | else if (!name) fprintf(stderr, "Neither error nor name for path '%s'\n", path); |
|---|
| 1435 | return !error; |
|---|
| 1436 | } |
|---|
| 1437 | bool parsed_name(const char *expected_name) { |
|---|
| 1438 | bool ok = no_error(); |
|---|
| 1439 | if (ok && strcmp(expected_name, name) != 0) { |
|---|
| 1440 | if (expected_name != ANY_NAME) { |
|---|
| 1441 | fprintf(stderr, "path '%s' produces unexpected name '%s' (expected '%s')\n", path, name, expected_name); |
|---|
| 1442 | ok = false; |
|---|
| 1443 | } |
|---|
| 1444 | } |
|---|
| 1445 | return ok; |
|---|
| 1446 | } |
|---|
| 1447 | bool parsed_id(long expected_id) { |
|---|
| 1448 | bool ok = no_error(); |
|---|
| 1449 | if (ok && id != expected_id) { |
|---|
| 1450 | fprintf(stderr, "path '%s' produces unexpected id '%li' (expected '%li')\n", path, id, expected_id); |
|---|
| 1451 | ok = false; |
|---|
| 1452 | } |
|---|
| 1453 | return ok; |
|---|
| 1454 | } |
|---|
| 1455 | |
|---|
| 1456 | bool parsed(const char *expected_name, long expected_id) { return parsed_name(expected_name) && parsed_id(expected_id); } |
|---|
| 1457 | }; |
|---|
| 1458 | |
|---|
| 1459 | void TEST_gbcm_get_m_id() { |
|---|
| 1460 | TEST_REJECT_NULL(gbcm_get_m_id_TESTER(NULL).error); |
|---|
| 1461 | TEST_REJECT_NULL(gbcm_get_m_id_TESTER("").error); |
|---|
| 1462 | TEST_EXPECT(gbcm_get_m_id_TESTER(":").parsed(ANY_NAME, -1)); |
|---|
| 1463 | |
|---|
| 1464 | TEST_EXPECT(gbcm_get_m_id_TESTER("localhost:71").parsed("localhost", 71)); // fixed with [6486] |
|---|
| 1465 | TEST_REJECT_NULL(gbcm_get_m_id_TESTER("localhost:0").error); |
|---|
| 1466 | TEST_EXPECT_NULL(gbcm_get_m_id_TESTER("localhost:4096").error); |
|---|
| 1467 | TEST_REJECT_NULL(gbcm_get_m_id_TESTER("localhost:4097").error); |
|---|
| 1468 | |
|---|
| 1469 | TEST_EXPECT(gbcm_get_m_id_TESTER(":/tmp/arb_pt_ralf1").parsed("/tmp/arb_pt_ralf1", -1)); |
|---|
| 1470 | |
|---|
| 1471 | // @@@ no idea what "*" is used for, so the following tests are only descriptive! |
|---|
| 1472 | TEST_EXPECT(gbcm_get_m_id_TESTER("*whatever:bar").parsed("bar", -1)); |
|---|
| 1473 | TEST_EXPECT(gbcm_get_m_id_TESTER("*:bar").parsed("bar", -1)); |
|---|
| 1474 | } |
|---|
| 1475 | |
|---|
| 1476 | #define TEST_EXPECT_IS_CANONICAL(file) \ |
|---|
| 1477 | do { \ |
|---|
| 1478 | char *dup = strdup(file); \ |
|---|
| 1479 | TEST_EXPECT_EQUAL(GB_canonical_path(dup), dup); \ |
|---|
| 1480 | free(dup); \ |
|---|
| 1481 | } while(0) |
|---|
| 1482 | |
|---|
| 1483 | #define TEST_EXPECT_CANONICAL_TO(not_cano,cano) \ |
|---|
| 1484 | do { \ |
|---|
| 1485 | char *arb_not_cano = strdup(GB_concat_path(arbhome, not_cano)); \ |
|---|
| 1486 | char *arb_cano = strdup(GB_concat_path(arbhome, cano)); \ |
|---|
| 1487 | TEST_EXPECT_EQUAL(GB_canonical_path(arb_not_cano), arb_cano); \ |
|---|
| 1488 | free(arb_cano); \ |
|---|
| 1489 | free(arb_not_cano); \ |
|---|
| 1490 | } while (0) |
|---|
| 1491 | |
|---|
| 1492 | static arb_test::match_expectation path_splits_into(const char *path, const char *Edir, const char *Enameext, const char *Ename, const char *Eext) { |
|---|
| 1493 | using namespace arb_test; |
|---|
| 1494 | expectation_group expected; |
|---|
| 1495 | |
|---|
| 1496 | char *Sdir,*Snameext,*Sname,*Sext; |
|---|
| 1497 | GB_split_full_path(path, &Sdir, &Snameext, &Sname, &Sext); |
|---|
| 1498 | |
|---|
| 1499 | expected.add(that(Sdir).is_equal_to(Edir)); |
|---|
| 1500 | expected.add(that(Snameext).is_equal_to(Enameext)); |
|---|
| 1501 | expected.add(that(Sname).is_equal_to(Ename)); |
|---|
| 1502 | expected.add(that(Sext).is_equal_to(Eext)); |
|---|
| 1503 | |
|---|
| 1504 | free(Sdir); |
|---|
| 1505 | free(Snameext); |
|---|
| 1506 | free(Sname); |
|---|
| 1507 | free(Sext); |
|---|
| 1508 | |
|---|
| 1509 | return all().ofgroup(expected); |
|---|
| 1510 | } |
|---|
| 1511 | |
|---|
| 1512 | #define TEST_EXPECT_PATH_SPLITS_INTO(path,dir,nameext,name,ext) TEST_EXPECTATION(path_splits_into(path,dir,nameext,name,ext)) |
|---|
| 1513 | #define TEST_EXPECT_PATH_SPLITS_INTO__BROKEN(path,dir,nameext,name,ext) TEST_EXPECTATION__BROKEN(path_splits_into(path,dir,nameext,name,ext)) |
|---|
| 1514 | |
|---|
| 1515 | static arb_test::match_expectation path_splits_reversible(const char *path) { |
|---|
| 1516 | using namespace arb_test; |
|---|
| 1517 | expectation_group expected; |
|---|
| 1518 | |
|---|
| 1519 | char *Sdir,*Snameext,*Sname,*Sext; |
|---|
| 1520 | GB_split_full_path(path, &Sdir, &Snameext, &Sname, &Sext); |
|---|
| 1521 | |
|---|
| 1522 | expected.add(that(GB_append_suffix(Sname, Sext)).is_equal_to(Snameext)); // GB_append_suffix should reverse name.ext-split |
|---|
| 1523 | expected.add(that(GB_concat_path(Sdir, Snameext)).is_equal_to(path)); // GB_concat_path should reverse dir/file-split |
|---|
| 1524 | |
|---|
| 1525 | free(Sdir); |
|---|
| 1526 | free(Snameext); |
|---|
| 1527 | free(Sname); |
|---|
| 1528 | free(Sext); |
|---|
| 1529 | |
|---|
| 1530 | return all().ofgroup(expected); |
|---|
| 1531 | } |
|---|
| 1532 | |
|---|
| 1533 | #define TEST_SPLIT_REVERSIBILITY(path) TEST_EXPECTATION(path_splits_reversible(path)) |
|---|
| 1534 | #define TEST_SPLIT_REVERSIBILITY__BROKEN(path) TEST_EXPECTATION__BROKEN(path_splits_reversible(path)) |
|---|
| 1535 | |
|---|
| 1536 | void TEST_paths() { |
|---|
| 1537 | // test GB_concat_path |
|---|
| 1538 | TEST_EXPECT_EQUAL(GB_concat_path("a", NULL), "a"); |
|---|
| 1539 | TEST_EXPECT_EQUAL(GB_concat_path(NULL, "b"), "b"); |
|---|
| 1540 | TEST_EXPECT_EQUAL(GB_concat_path("a", "b"), "a/b"); |
|---|
| 1541 | |
|---|
| 1542 | TEST_EXPECT_EQUAL(GB_concat_path("/", "test.fig"), "/test.fig"); |
|---|
| 1543 | |
|---|
| 1544 | // test GB_split_full_path |
|---|
| 1545 | TEST_EXPECT_PATH_SPLITS_INTO("dir/sub/.ext", "dir/sub", ".ext", "", "ext"); |
|---|
| 1546 | TEST_EXPECT_PATH_SPLITS_INTO("/root/sub/file.notext.ext", "/root/sub", "file.notext.ext", "file.notext", "ext"); |
|---|
| 1547 | |
|---|
| 1548 | TEST_EXPECT_PATH_SPLITS_INTO("./file.ext", ".", "file.ext", "file", "ext"); |
|---|
| 1549 | TEST_EXPECT_PATH_SPLITS_INTO("/file", "/", "file", "file", NULL); |
|---|
| 1550 | TEST_EXPECT_PATH_SPLITS_INTO(".", ".", NULL, NULL, NULL); |
|---|
| 1551 | |
|---|
| 1552 | // test reversibility of GB_split_full_path and GB_concat_path/GB_append_suffix |
|---|
| 1553 | { |
|---|
| 1554 | const char *prefix[] = { |
|---|
| 1555 | "", |
|---|
| 1556 | "dir/", |
|---|
| 1557 | "dir/sub/", |
|---|
| 1558 | "/dir/", |
|---|
| 1559 | "/dir/sub/", |
|---|
| 1560 | "/", |
|---|
| 1561 | "./", |
|---|
| 1562 | "../", |
|---|
| 1563 | }; |
|---|
| 1564 | |
|---|
| 1565 | for (size_t d = 0; d<ARRAY_ELEMS(prefix); ++d) { |
|---|
| 1566 | TEST_ANNOTATE(GBS_global_string("prefix='%s'", prefix[d])); |
|---|
| 1567 | |
|---|
| 1568 | TEST_SPLIT_REVERSIBILITY(GBS_global_string("%sfile.ext", prefix[d])); |
|---|
| 1569 | TEST_SPLIT_REVERSIBILITY(GBS_global_string("%sfile", prefix[d])); |
|---|
| 1570 | TEST_SPLIT_REVERSIBILITY(GBS_global_string("%s.ext", prefix[d])); |
|---|
| 1571 | if (prefix[d][0]) { // empty string "" reverts to NULL |
|---|
| 1572 | TEST_SPLIT_REVERSIBILITY(prefix[d]); |
|---|
| 1573 | } |
|---|
| 1574 | } |
|---|
| 1575 | } |
|---|
| 1576 | |
|---|
| 1577 | // GB_canonical_path basics |
|---|
| 1578 | TEST_EXPECT_CONTAINS(GB_canonical_path("./bla"), "UNIT_TESTER/run/bla"); |
|---|
| 1579 | TEST_EXPECT_CONTAINS(GB_canonical_path("bla"), "UNIT_TESTER/run/bla"); |
|---|
| 1580 | |
|---|
| 1581 | { |
|---|
| 1582 | char *arbhome = strdup(GB_getenvARBHOME()); |
|---|
| 1583 | const char* nosuchfile = "nosuchfile"; |
|---|
| 1584 | const char* somefile = "arb_README.txt"; |
|---|
| 1585 | |
|---|
| 1586 | char *somefile_in_arbhome = strdup(GB_concat_path(arbhome, somefile)); |
|---|
| 1587 | char *nosuchfile_in_arbhome = strdup(GB_concat_path(arbhome, nosuchfile)); |
|---|
| 1588 | char *nosuchpath_in_arbhome = strdup(GB_concat_path(arbhome, "nosuchpath")); |
|---|
| 1589 | char *somepath_in_arbhome = strdup(GB_concat_path(arbhome, "lib")); |
|---|
| 1590 | char *file_in_nosuchpath = strdup(GB_concat_path(nosuchpath_in_arbhome, "whatever")); |
|---|
| 1591 | |
|---|
| 1592 | TEST_REJECT(GB_is_directory(nosuchpath_in_arbhome)); |
|---|
| 1593 | |
|---|
| 1594 | // test GB_get_full_path |
|---|
| 1595 | TEST_EXPECT_IS_CANONICAL(somefile_in_arbhome); |
|---|
| 1596 | TEST_EXPECT_IS_CANONICAL(nosuchpath_in_arbhome); |
|---|
| 1597 | TEST_EXPECT_IS_CANONICAL(file_in_nosuchpath); |
|---|
| 1598 | |
|---|
| 1599 | TEST_EXPECT_IS_CANONICAL("/tmp"); // existing (most likely) |
|---|
| 1600 | TEST_EXPECT_IS_CANONICAL("/tmp/arbtest.fig"); |
|---|
| 1601 | TEST_EXPECT_IS_CANONICAL("/arbtest.fig"); // not existing (most likely) |
|---|
| 1602 | |
|---|
| 1603 | TEST_EXPECT_CANONICAL_TO("./PARSIMONY/./../ARBDB/./arbdb.h", "ARBDB/arbdb.h"); // test parent-path |
|---|
| 1604 | TEST_EXPECT_CANONICAL_TO("INCLUDE/arbdb.h", "ARBDB/arbdb.h"); // test symbolic link to file |
|---|
| 1605 | TEST_EXPECT_CANONICAL_TO("NAMES_COM/AISC/aisc.pa", "AISC_COM/AISC/aisc.pa"); // test symbolic link to directory |
|---|
| 1606 | TEST_EXPECT_CANONICAL_TO("./NAMES_COM/AISC/..", "AISC_COM"); // test parent-path through links |
|---|
| 1607 | |
|---|
| 1608 | TEST_EXPECT_CANONICAL_TO("./PARSIMONY/./../ARBDB/../nosuchpath", "nosuchpath"); // nosuchpath does not exist, but involved parent dirs do |
|---|
| 1609 | // test resolving of non-existent parent dirs: |
|---|
| 1610 | TEST_EXPECT_CANONICAL_TO("./PARSIMONY/./../nosuchpath/../ARBDB", "ARBDB"); |
|---|
| 1611 | TEST_EXPECT_CANONICAL_TO("./nosuchpath/./../ARBDB", "ARBDB"); |
|---|
| 1612 | |
|---|
| 1613 | // test GB_unfold_path |
|---|
| 1614 | TEST_EXPECT_EQUAL(GB_unfold_path("ARBHOME", somefile), somefile_in_arbhome); |
|---|
| 1615 | TEST_EXPECT_EQUAL(GB_unfold_path("ARBHOME", nosuchfile), nosuchfile_in_arbhome); |
|---|
| 1616 | |
|---|
| 1617 | char *inhome = strdup(GB_unfold_path("HOME", "whatever")); |
|---|
| 1618 | TEST_EXPECT_EQUAL(inhome, GB_canonical_path("~/whatever")); |
|---|
| 1619 | free(inhome); |
|---|
| 1620 | |
|---|
| 1621 | // test GB_unfold_in_directory |
|---|
| 1622 | TEST_EXPECT_EQUAL(GB_unfold_in_directory(arbhome, somefile), somefile_in_arbhome); |
|---|
| 1623 | TEST_EXPECT_EQUAL(GB_unfold_in_directory(nosuchpath_in_arbhome, somefile_in_arbhome), somefile_in_arbhome); |
|---|
| 1624 | TEST_EXPECT_EQUAL(GB_unfold_in_directory(arbhome, nosuchfile), nosuchfile_in_arbhome); |
|---|
| 1625 | TEST_EXPECT_EQUAL(GB_unfold_in_directory(nosuchpath_in_arbhome, "whatever"), file_in_nosuchpath); |
|---|
| 1626 | TEST_EXPECT_EQUAL(GB_unfold_in_directory(somepath_in_arbhome, "../nosuchfile"), nosuchfile_in_arbhome); |
|---|
| 1627 | |
|---|
| 1628 | // test unfolding absolute paths (HOME is ignored) |
|---|
| 1629 | TEST_EXPECT_EQUAL(GB_unfold_path("HOME", arbhome), arbhome); |
|---|
| 1630 | TEST_EXPECT_EQUAL(GB_unfold_path("HOME", somefile_in_arbhome), somefile_in_arbhome); |
|---|
| 1631 | TEST_EXPECT_EQUAL(GB_unfold_path("HOME", nosuchfile_in_arbhome), nosuchfile_in_arbhome); |
|---|
| 1632 | |
|---|
| 1633 | // test GB_path_in_ARBHOME |
|---|
| 1634 | TEST_EXPECT_EQUAL(GB_path_in_ARBHOME(somefile), somefile_in_arbhome); |
|---|
| 1635 | TEST_EXPECT_EQUAL(GB_path_in_ARBHOME(nosuchfile), nosuchfile_in_arbhome); |
|---|
| 1636 | |
|---|
| 1637 | free(file_in_nosuchpath); |
|---|
| 1638 | free(somepath_in_arbhome); |
|---|
| 1639 | free(nosuchpath_in_arbhome); |
|---|
| 1640 | free(nosuchfile_in_arbhome); |
|---|
| 1641 | free(somefile_in_arbhome); |
|---|
| 1642 | free(arbhome); |
|---|
| 1643 | } |
|---|
| 1644 | |
|---|
| 1645 | TEST_EXPECT_EQUAL(GB_path_in_ARBLIB("help"), GB_path_in_ARBHOME("lib", "help")); |
|---|
| 1646 | |
|---|
| 1647 | } |
|---|
| 1648 | |
|---|
| 1649 | // ---------------------------------------- |
|---|
| 1650 | |
|---|
| 1651 | class TestFile : virtual Noncopyable { |
|---|
| 1652 | const char *name; |
|---|
| 1653 | bool open(const char *mode) { |
|---|
| 1654 | FILE *out = fopen(name, mode); |
|---|
| 1655 | if (out) fclose(out); |
|---|
| 1656 | return out; |
|---|
| 1657 | } |
|---|
| 1658 | void create() { ASSERT_RESULT(bool, true, open("w")); } |
|---|
| 1659 | void unlink() { ::unlink(name); } |
|---|
| 1660 | public: |
|---|
| 1661 | TestFile(const char *name_) : name(name_) { create(); } |
|---|
| 1662 | ~TestFile() { if (exists()) unlink(); } |
|---|
| 1663 | const char *get_name() const { return name; } |
|---|
| 1664 | bool exists() { return open("r"); } |
|---|
| 1665 | }; |
|---|
| 1666 | |
|---|
| 1667 | void TEST_GB_remove_on_exit() { |
|---|
| 1668 | { |
|---|
| 1669 | // first test class TestFile |
|---|
| 1670 | TestFile file("test1"); |
|---|
| 1671 | TEST_EXPECT(file.exists()); |
|---|
| 1672 | TEST_EXPECT(TestFile(file.get_name()).exists()); // removes the file |
|---|
| 1673 | TEST_REJECT(file.exists()); |
|---|
| 1674 | } |
|---|
| 1675 | |
|---|
| 1676 | TestFile t("test1"); |
|---|
| 1677 | { |
|---|
| 1678 | GB_shell shell; |
|---|
| 1679 | GBDATA *gb_main = GB_open("no.arb", "c"); |
|---|
| 1680 | |
|---|
| 1681 | GB_remove_on_exit(t.get_name()); |
|---|
| 1682 | GB_close(gb_main); |
|---|
| 1683 | } |
|---|
| 1684 | TEST_REJECT(t.exists()); |
|---|
| 1685 | } |
|---|
| 1686 | |
|---|
| 1687 | void TEST_some_paths() { |
|---|
| 1688 | gb_getenv_hook old = GB_install_getenv_hook(arb_test::fakeenv); |
|---|
| 1689 | { |
|---|
| 1690 | // ../UNIT_TESTER/run/homefake |
|---|
| 1691 | |
|---|
| 1692 | TEST_EXPECT_CONTAINS__BROKEN(GB_getenvHOME(), "/UNIT_TESTER/run/homefake"); // GB_getenvHOME() ignores the hook |
|---|
| 1693 | // @@@ this is a general problem - unit tested code cannot use GB_getenvHOME() w/o problems |
|---|
| 1694 | |
|---|
| 1695 | TEST_EXPECT_CONTAINS(GB_getenvARB_PROP(), "/UNIT_TESTER/run/homefake/.arb_prop"); |
|---|
| 1696 | TEST_EXPECT_CONTAINS(GB_getenvARBMACRO(), "/lib/macros"); |
|---|
| 1697 | |
|---|
| 1698 | TEST_EXPECT_CONTAINS(GB_getenvARBCONFIG(), "/UNIT_TESTER/run/homefake/.arb_prop/cfgSave"); |
|---|
| 1699 | TEST_EXPECT_CONTAINS(GB_getenvARBMACROHOME(), "/UNIT_TESTER/run/homefake/.arb_prop/macros"); // works in [11068] |
|---|
| 1700 | } |
|---|
| 1701 | TEST_EXPECT_EQUAL((void*)arb_test::fakeenv, (void*)GB_install_getenv_hook(old)); |
|---|
| 1702 | } |
|---|
| 1703 | |
|---|
| 1704 | #endif // UNIT_TESTS |
|---|
| 1705 | |
|---|