| 1 | // =============================================================== // |
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| 2 | // // |
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| 3 | // File : gb_header.h // |
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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 | #ifndef GB_HEADER_H |
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| 12 | #define GB_HEADER_H |
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| 13 | |
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| 14 | #ifndef GB_DATA_H |
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| 15 | #include "gb_data.h" |
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| 16 | #endif |
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| 17 | |
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| 18 | |
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| 19 | struct gb_header_flags { |
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| 20 | unsigned int flags : GB_MAX_USERS; // public |
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| 21 | unsigned int key_quark : 24; // == 0 -> invalid |
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| 22 | unsigned int changed : 3; |
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| 23 | unsigned int ever_changed : 1; // is this element ever changed |
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| 24 | |
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| 25 | void set_change(GB_CHANGE val) { |
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| 26 | changed = val; |
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| 27 | ever_changed = 1; |
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| 28 | } |
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| 29 | void inc_change(GB_CHANGE val) { |
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| 30 | if (changed<unsigned(val)) set_change(val); |
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| 31 | } |
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| 32 | }; |
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| 33 | |
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| 34 | struct gb_header_list { // public fast flags |
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| 35 | gb_header_flags flags; |
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| 36 | GB_REL_GBDATA rel_hl_gbd; |
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| 37 | /* pointer to data |
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| 38 | if 0 & !key_index -> free data |
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| 39 | if 0 & key_index -> data only in server */ |
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| 40 | }; |
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| 41 | |
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| 42 | inline GBDATA *GB_HEADER_LIST_GBD(gb_header_list& hl) { |
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| 43 | return GB_RESOLVE(GBDATA*, (&(hl)), rel_hl_gbd); |
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| 44 | } |
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| 45 | inline void SET_GB_HEADER_LIST_GBD(gb_header_list& hl, GBDATA *gbd) { |
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| 46 | GB_SETREL(&hl, rel_hl_gbd, gbd); |
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| 47 | } |
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| 48 | |
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| 49 | inline gb_header_flags& GB_ARRAY_FLAGS(GBDATA *gbd) { return GB_DATA_LIST_HEADER(GB_FATHER(gbd)->d)[gbd->index].flags; } |
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| 50 | |
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| 51 | // --------------------------------- |
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| 52 | // container element access |
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| 53 | |
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| 54 | inline GBDATA *EXISTING_GBCONTAINER_ELEM(GBCONTAINER *gbc, int idx) { |
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| 55 | return GB_HEADER_LIST_GBD(GB_DATA_LIST_HEADER((gbc)->d)[idx]); |
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| 56 | } |
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| 57 | inline GBDATA *GBCONTAINER_ELEM(GBCONTAINER *gbc, int idx) { |
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| 58 | return (idx<gbc->d.nheader) ? EXISTING_GBCONTAINER_ELEM(gbc, idx) : NULp; |
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| 59 | } |
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| 60 | inline void SET_GBCONTAINER_ELEM(GBCONTAINER *gbc, int idx, GBDATA *gbd) { |
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| 61 | SET_GB_HEADER_LIST_GBD(GB_DATA_LIST_HEADER(gbc->d)[idx], gbd); |
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| 62 | } |
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| 63 | |
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| 64 | |
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| 65 | #else |
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| 66 | #error gb_header.h included twice |
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| 67 | #endif // GB_HEADER_H |
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