Changeset 6654 for trunk/ARBDB/ad_prot.h

Timestamp:

13/05/10 17:30:03 (2 years ago)

Author:

westram

Message:

• This patch stuffs all memory leaks in ARBDB (as far as covered by unit-tests) for DEBUG and NDEBUG version!
• ARBDB global data (aka 'gb_local')
  • track number of opened/closed DBs
  • GBK_install_SIGSEGV_handler only once in GB_init_gb()
  • when closing last DB -> call GB_exit_gb() freeing more memory (also called atexit, including assertion failing if a DB is still open)
  • added class ARBDB_memory_manager (just calls gbm_init_mem + gbm_flush_mem)
  • GB_exit_gb flushes ARBDB_memory_manager (if all blocks were freed by gbm_free_mem, everything will be flushed)
• fixed a few more static buffer leaks
• gb_make_entry - alloc correct blocksizes for GB_STRING and GB_LINK
• fixed a hack in gb_read_bin_rek_V2
  • was increasing size of memory block to avoid illegal memory access in decompress (introduced in [1003]; may occur again)
  • due to mismatch in size between gbm_get_mem and gbm_free_mem memory was never flushed even if all blocks have been freed
• fixed memleak in gb_read_bin_rek_V2
  • when loading mapfile, previously created 'gb_main' was not freed
• added allocation logger to admalloc.cxx (inactive - use TRACE_ALLOCS to activate it)
  • traces all allocs/frees of ARBDB managed memory
  • detects wrong usage (double free, size and index mismatch) and shows were the block was allocated
  • added new backtrace functions helpful for debugging (store stack-backtraces and print them later)

Files:

• trunk/ARBDB/ad_prot.h (modified) (1 diff)

trunk/ARBDB/ad_prot.h

@@ -237 +237 @@
 char *GB_check_out_buffer(GB_CBUFFER buffer);
 GB_BUFFER GB_give_other_buffer(GB_CBUFFER buffer, long size);
+void GB_exit_gb(void);
 void GB_init_gb(void);
 void GB_atclose(GBDATA *gbd, void (*fun)(GBDATA *gb_main, void *client_data), void *client_data);