mirror of
https://github.com/MariaDB/server.git
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209 lines
9.4 KiB
C
209 lines
9.4 KiB
C
/* -*- mode: C; c-basic-offset: 4 -*- */
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#ident "Copyright (c) 2007 Tokutek Inc. All rights reserved."
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/* LICENSE: This file is licensed under the GPL or from Tokutek. */
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/* Make a db.h that will be link-time compatible with Sleepycat's Berkeley DB. */
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#include <db.h>
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#include <stdio.h>
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#include <stdlib.h>
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#include <assert.h>
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#define DECL_LIMIT 100
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#define FIELD_LIMIT 100
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struct fieldinfo {
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char decl[DECL_LIMIT];
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unsigned int off;
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unsigned int size;
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} fields[FIELD_LIMIT];
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int field_counter=0;
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int compare_fields (const void *av, const void *bv) {
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const struct fieldinfo *a = av;
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const struct fieldinfo *b = bv;
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if (a->off < b->off) return -1;
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if (a->off > b->off) return 1;
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return 0;
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}
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#define STRUCT_SETUP(typ, name, fstring) ({ snprintf(fields[field_counter].decl, DECL_LIMIT, fstring, #name); \
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fields[field_counter].off = __builtin_offsetof(typ, name); \
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{ typ dummy; \
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fields[field_counter].size = sizeof(dummy.name); } \
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field_counter++; })
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FILE *outf;
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void open_file (void) {
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char fname[100];
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#ifdef LOCAL
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snprintf(fname, 100, "sample_offsets_local.h");
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#else
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snprintf(fname, 100, "sample_offsets_%d_%d_%d.h", __WORDSIZE, DB_VERSION_MAJOR, DB_VERSION_MINOR);
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#endif
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outf = fopen(fname, "w");
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assert(outf);
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}
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void sort_and_dump_fields (const char *structname, unsigned int sizeofstruct) {
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int i;
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qsort(fields, field_counter, sizeof(fields[0]), compare_fields);
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fprintf(outf, "struct fieldinfo %s_fields%d[] = {\n", structname, __WORDSIZE);
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for (i=0; i<field_counter; i++) {
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fprintf(outf, " {\"%s\", %d, %d},\n", fields[i].decl, fields[i].off, fields[i].size);
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}
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fprintf(outf, " {0, %d, %d} /* size of whole struct */\n", sizeofstruct, sizeofstruct);
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fprintf(outf, "};\n");
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}
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void sample_db_btree_stat_offsets (void) {
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field_counter=0;
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STRUCT_SETUP(DB_BTREE_STAT, bt_ndata, "u_int32_t %s");
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STRUCT_SETUP(DB_BTREE_STAT, bt_nkeys, "u_int32_t %s");
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sort_and_dump_fields("db_btree_stat", sizeof(DB_BTREE_STAT));
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}
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void sample_db_env_offsets (void) {
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field_counter=0;
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STRUCT_SETUP(DB_ENV, api1_internal, "void *%s"); /* Used for C++ hacking. */
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STRUCT_SETUP(DB_ENV, app_private, "void *%s");
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STRUCT_SETUP(DB_ENV, close, "int (*%s) (DB_ENV *, u_int32_t)");
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STRUCT_SETUP(DB_ENV, err, "void (*%s) (const DB_ENV *, int, const char *, ...)");
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#if DB_VERSION_MAJOR == 4 && DB_VERSION_MINOR >= 3
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STRUCT_SETUP(DB_ENV, get_cachesize, "int (*%s) (DB_ENV *, u_int32_t *)");
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STRUCT_SETUP(DB_ENV, get_flags, "int (*%s) (DB_ENV *, u_int32_t *)");
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#endif
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STRUCT_SETUP(DB_ENV, log_archive, "int (*%s) (DB_ENV *, char **[], u_int32_t)");
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STRUCT_SETUP(DB_ENV, log_flush, "int (*%s) (DB_ENV *, const DB_LSN *)");
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STRUCT_SETUP(DB_ENV, open, "int (*%s) (DB_ENV *, const char *, u_int32_t, int)");
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STRUCT_SETUP(DB_ENV, set_cachesize, "int (*%s) (DB_ENV *, u_int32_t, u_int32_t, int)");
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STRUCT_SETUP(DB_ENV, set_data_dir, "int (*%s) (DB_ENV *, const char *)");
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STRUCT_SETUP(DB_ENV, set_errcall, "void (*%s) (DB_ENV *, void (*)(const char *, char *))");
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STRUCT_SETUP(DB_ENV, set_errfile, "void (*%s) (DB_ENV *, FILE*)");
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STRUCT_SETUP(DB_ENV, set_errpfx, "void (*%s) (DB_ENV *, const char *)");
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STRUCT_SETUP(DB_ENV, set_flags, "int (*%s) (DB_ENV *, u_int32_t, int)");
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STRUCT_SETUP(DB_ENV, set_lg_bsize, "int (*%s) (DB_ENV *, u_int32_t)");
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STRUCT_SETUP(DB_ENV, set_lg_dir, "int (*%s) (DB_ENV *, const char *)");
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STRUCT_SETUP(DB_ENV, set_lg_max, "int (*%s) (DB_ENV *, u_int32_t)");
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STRUCT_SETUP(DB_ENV, set_lk_detect, "int (*%s) (DB_ENV *, u_int32_t)");
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#if DB_VERSION_MAJOR == 4 && DB_VERSION_MINOR <= 4
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STRUCT_SETUP(DB_ENV, set_lk_max, "int (*%s) (DB_ENV *, u_int32_t)");
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#endif
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//STRUCT_SETUP(DB_ENV, set_noticecall, "void (*%s) (DB_ENV *, void (*)(DB_ENV *, db_notices))");
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STRUCT_SETUP(DB_ENV, set_tmp_dir, "int (*%s) (DB_ENV *, const char *)");
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STRUCT_SETUP(DB_ENV, set_verbose, "int (*%s) (DB_ENV *, u_int32_t, int)");
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STRUCT_SETUP(DB_ENV, txn_checkpoint, "int (*%s) (DB_ENV *, u_int32_t, u_int32_t, u_int32_t)");
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STRUCT_SETUP(DB_ENV, txn_stat, "int (*%s) (DB_ENV *, DB_TXN_STAT **, u_int32_t)");
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STRUCT_SETUP(DB_ENV, txn_begin, "int (*%s) (DB_ENV *, DB_TXN *, DB_TXN **, u_int32_t)");
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sort_and_dump_fields("db_env", sizeof(DB_ENV));
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}
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void sample_db_key_range_offsets (void) {
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field_counter=0;
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STRUCT_SETUP(DB_KEY_RANGE, less, "double %s");
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STRUCT_SETUP(DB_KEY_RANGE, equal, "double %s");
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STRUCT_SETUP(DB_KEY_RANGE, greater, "double %s");
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sort_and_dump_fields("db_key_range", sizeof(DB_ENV));
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}
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void sample_db_lsn_offsets (void) {
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field_counter=0;
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sort_and_dump_fields("db_lsn", sizeof(DB_LSN));
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}
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void sample_db_offsets (void) {
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/* Do these in alphabetical order. */
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field_counter=0;
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STRUCT_SETUP(DB, api_internal, "void *%s"); /* Used for C++ hacking. */
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STRUCT_SETUP(DB, app_private, "void *%s");
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STRUCT_SETUP(DB, associate, "int (*%s) (DB*, DB_TXN*, DB*, int(*)(DB*, const DBT*, const DBT*, DBT*), u_int32_t)");
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STRUCT_SETUP(DB, close, "int (*%s) (DB*, u_int32_t)");
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STRUCT_SETUP(DB, cursor, "int (*%s) (DB *, DB_TXN *, DBC **, u_int32_t)");
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STRUCT_SETUP(DB, dbenv, "DB_ENV *%s");
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STRUCT_SETUP(DB, del, "int (*%s) (DB *, DB_TXN *, DBT *, u_int32_t)");
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STRUCT_SETUP(DB, get, "int (*%s) (DB *, DB_TXN *, DBT *, DBT *, u_int32_t)");
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#if DB_VERSION_MAJOR == 4 && DB_VERSION_MINOR >= 3
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STRUCT_SETUP(DB, get_flags, "int (*%s) (DB *, u_int32_t *)");
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STRUCT_SETUP(DB, get_pagesize, "int (*%s) (DB *, u_int32_t *)");
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#endif
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STRUCT_SETUP(DB, key_range, "int (*%s) (DB *, DB_TXN *, DBT *, DB_KEY_RANGE *, u_int32_t)");
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STRUCT_SETUP(DB, open, "int (*%s) (DB *, DB_TXN *, const char *, const char *, DBTYPE, u_int32_t, int)");
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STRUCT_SETUP(DB, pget, "int (*%s) (DB *, DB_TXN *, DBT *, DBT *, DBT *, u_int32_t)");
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STRUCT_SETUP(DB, put, "int (*%s) (DB *, DB_TXN *, DBT *, DBT *, u_int32_t)");
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STRUCT_SETUP(DB, remove, "int (*%s) (DB *, const char *, const char *, u_int32_t)");
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STRUCT_SETUP(DB, rename, "int (*%s) (DB *, const char *, const char *, const char *, u_int32_t)");
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STRUCT_SETUP(DB, set_bt_compare, "int (*%s) (DB *, int (*)(DB *, const DBT *, const DBT *))");
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STRUCT_SETUP(DB, set_dup_compare, "int (*%s) (DB *, int (*)(DB *, const DBT *, const DBT *))");
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STRUCT_SETUP(DB, set_errfile, "void (*%s) (DB_ENV *, FILE*)");
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STRUCT_SETUP(DB, set_flags, "int (*%s) (DB *, u_int32_t)");
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STRUCT_SETUP(DB, set_pagesize, "int (*%s) (DB *, u_int32_t)");
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STRUCT_SETUP(DB, stat, "int (*%s) (DB *, void *, u_int32_t)");
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STRUCT_SETUP(DB, verify, "int (*%s) (DB *, const char *, const char *, FILE *, u_int32_t)");
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sort_and_dump_fields("db", sizeof(DB));
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}
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void sample_db_txn_active_offsets (void) {
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field_counter=0;
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STRUCT_SETUP(DB_TXN_ACTIVE, lsn, "DB_LSN %s");
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STRUCT_SETUP(DB_TXN_ACTIVE, txnid, "u_int32_t %s");
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sort_and_dump_fields("db_txn_active", sizeof(DB_TXN_ACTIVE));
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}
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void sample_db_txn_offsets (void) {
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field_counter=0;
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STRUCT_SETUP(DB_TXN, api_internal,"void *%s");
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STRUCT_SETUP(DB_TXN, commit, "int (*%s) (DB_TXN*, u_int32_t)");
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STRUCT_SETUP(DB_TXN, id, "u_int32_t (*%s) (DB_TXN *)");
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STRUCT_SETUP(DB_TXN, abort, "int (*%s) (DB_TXN *)");
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sort_and_dump_fields("db_txn", sizeof(DB_TXN));
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}
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void sample_db_txn_stat_offsets (void) {
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field_counter=0;
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STRUCT_SETUP(DB_TXN_STAT, st_nactive, "u_int32_t %s");
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STRUCT_SETUP(DB_TXN_STAT, st_txnarray, "DB_TXN_ACTIVE *%s");
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sort_and_dump_fields("db_txn_stat", sizeof(DB_TXN_STAT));
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}
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void sample_dbc_offsets (void) {
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field_counter=0;
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STRUCT_SETUP(DBC, c_close, "int (*%s) (DBC *)");
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STRUCT_SETUP(DBC, c_del, "int (*%s) (DBC *, u_int32_t)");
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STRUCT_SETUP(DBC, c_get, "int (*%s) (DBC *, DBT *, DBT *, u_int32_t)");
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STRUCT_SETUP(DBC, c_pget, "int (*%s) (DBC *, DBT *, DBT *, DBT *, u_int32_t)");
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STRUCT_SETUP(DBC, c_put, "int (*%s) (DBC *, DBT *, DBT *, u_int32_t)");
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sort_and_dump_fields("dbc", sizeof(DBC));
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}
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void sample_dbt_offsets (void) {
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field_counter=0;
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#if 0 && DB_VERSION_MAJOR==4 && DB_VERSION_MINOR==1
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STRUCT_SETUP(DBT, app_private, "void*%s");
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#endif
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STRUCT_SETUP(DBT, data, "void*%s");
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STRUCT_SETUP(DBT, flags, "u_int32_t %s");
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STRUCT_SETUP(DBT, size, "u_int32_t %s");
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STRUCT_SETUP(DBT, ulen, "u_int32_t %s");
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sort_and_dump_fields("dbt", sizeof(DBT));
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}
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int main (int argc __attribute__((__unused__)), char *argv[] __attribute__((__unused__))) {
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open_file();
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fprintf(outf, "/* BDB offsets on a %d-bit machine */\n", __WORDSIZE);
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fprintf(outf, "#define DB_VERSION_MAJOR_%d %d\n", __WORDSIZE, DB_VERSION_MAJOR);
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fprintf(outf, "#define DB_VERSION_MINOR_%d %d\n", __WORDSIZE, DB_VERSION_MINOR);
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fprintf(outf, "#define DB_VERSION_STRING_%d \"Berkeley DB Compatability Header %d.%d\"\n", __WORDSIZE, DB_VERSION_MAJOR, DB_VERSION_MINOR);
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sample_db_btree_stat_offsets();
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sample_db_env_offsets();
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sample_db_key_range_offsets();
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sample_db_lsn_offsets();
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sample_db_offsets();
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sample_db_txn_active_offsets();
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sample_db_txn_offsets();
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sample_db_txn_stat_offsets();
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sample_dbc_offsets();
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sample_dbt_offsets();
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return 0;
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}
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