X-Git-Url: https://code.citadel.org/?a=blobdiff_plain;f=citadel%2Fdatabase.c;h=3bab5776d90ebe522eefb34b1c751f631de98ca1;hb=66f09fdd7c3f58e13ed01431dd5148302327ca6e;hp=155910a2da5062fbed1cdf5f1f618aad63ad1e97;hpb=e46bae0c95eb79ce9dc2119ff58ae5ad498d2d52;p=citadel.git diff --git a/citadel/database.c b/citadel/database.c index 155910a2d..3bab5776d 100644 --- a/citadel/database.c +++ b/citadel/database.c @@ -1,21 +1,15 @@ /* * This is a data store backend for the Citadel server which uses Berkeley DB. * - * Copyright (c) 1987-2009 by the citadel.org team + * Copyright (c) 1987-2012 by the citadel.org team * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License as published by - * the Free Software Foundation; either version 3 of the License, or - * (at your option) any later version. + * This program is open source software; you can redistribute it and/or + * modify it under the terms of the GNU General Public License version 3. * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. - * - * You should have received a copy of the GNU General Public License - * along with this program; if not, write to the Free Software - * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. * */ @@ -42,6 +36,8 @@ #include #include #include +#include +#include #ifdef HAVE_DB_H #include @@ -75,16 +71,25 @@ static DB *dbp[MAXCDB]; /* One DB handle for each Citadel database */ static DB_ENV *dbenv; /* The DB environment (global) */ -#ifdef HAVE_ZLIB -#include -#endif +void cdb_abort(void) { + syslog(LOG_DEBUG, + "citserver is stopping in order to prevent data loss. uid=%d gid=%d euid=%d egid=%d", + getuid(), + getgid(), + geteuid(), + getegid() + ); + cit_backtrace(); + exit(CTDLEXIT_DB); +} /* Verbose logging callback */ void cdb_verbose_log(const DB_ENV *dbenv, const char *msg) { if (!IsEmptyStr(msg)) { - CtdlLogPrintf(CTDL_DEBUG, "DB: %s\n", msg); + syslog(LOG_DEBUG, "DB: %s", msg); + cit_backtrace(); } } @@ -92,7 +97,8 @@ void cdb_verbose_log(const DB_ENV *dbenv, const char *msg) /* Verbose logging callback */ void cdb_verbose_err(const DB_ENV *dbenv, const char *errpfx, const char *msg) { - CtdlLogPrintf(CTDL_ALERT, "DB: %s\n", msg); + syslog(LOG_ALERT, "DB: %s", msg); + cit_backtrace(); } @@ -104,8 +110,8 @@ static void txabort(DB_TXN * tid) ret = tid->abort(tid); if (ret) { - CtdlLogPrintf(CTDL_EMERG, "bdb(): txn_abort: %s\n", db_strerror(ret)); - abort(); + syslog(LOG_EMERG, "bdb(): txn_abort: %s", db_strerror(ret)); + cdb_abort(); } } @@ -117,8 +123,8 @@ static void txcommit(DB_TXN * tid) ret = tid->commit(tid, 0); if (ret) { - CtdlLogPrintf(CTDL_EMERG, "bdb(): txn_commit: %s\n", db_strerror(ret)); - abort(); + syslog(LOG_EMERG, "bdb(): txn_commit: %s", db_strerror(ret)); + cdb_abort(); } } @@ -130,14 +136,15 @@ static void txbegin(DB_TXN ** tid) ret = dbenv->txn_begin(dbenv, NULL, tid, 0); if (ret) { - CtdlLogPrintf(CTDL_EMERG, "bdb(): txn_begin: %s\n", db_strerror(ret)); - abort(); + syslog(LOG_EMERG, "bdb(): txn_begin: %s", db_strerror(ret)); + cdb_abort(); } } static void dbpanic(DB_ENV * env, int errval) { - CtdlLogPrintf(CTDL_EMERG, "bdb(): PANIC: %s\n", db_strerror(errval)); + syslog(LOG_EMERG, "bdb(): PANIC: %s", db_strerror(errval)); + cit_backtrace(); } static void cclose(DBC * cursor) @@ -145,8 +152,8 @@ static void cclose(DBC * cursor) int ret; if ((ret = cursor->c_close(cursor))) { - CtdlLogPrintf(CTDL_EMERG, "bdb(): c_close: %s\n", db_strerror(ret)); - abort(); + syslog(LOG_EMERG, "bdb(): c_close: %s", db_strerror(ret)); + cdb_abort(); } } @@ -156,29 +163,20 @@ static void bailIfCursor(DBC ** cursors, const char *msg) for (i = 0; i < MAXCDB; i++) if (cursors[i] != NULL) { - CtdlLogPrintf(CTDL_EMERG, - "bdb(): cursor still in progress on cdb %02x: %s\n", i, msg); - abort(); + syslog(LOG_EMERG, "bdb(): cursor still in progress on cdb %02x: %s", i, msg); + cdb_abort(); } } -void check_handles(void *arg) -{ - if (arg != NULL) { - ThreadTSD *tsd = (ThreadTSD *) arg; - - bailIfCursor(tsd->cursors, "in check_handles"); - - if (tsd->tid != NULL) { - CtdlLogPrintf(CTDL_EMERG, "bdb(): transaction still in progress!"); - abort(); - } - } -} void cdb_check_handles(void) { - check_handles(pthread_getspecific(ThreadKey)); + bailIfCursor(TSD->cursors, "in check_handles"); + + if (TSD->tid != NULL) { + syslog(LOG_EMERG, "bdb(): transaction still in progress!"); + cdb_abort(); + } } @@ -196,14 +194,14 @@ static void cdb_cull_logs(void) /* Get the list of names. */ if ((ret = dbenv->log_archive(dbenv, &list, flags)) != 0) { - CtdlLogPrintf(CTDL_ERR, "cdb_cull_logs: %s\n", db_strerror(ret)); + syslog(LOG_ERR, "cdb_cull_logs: %s", db_strerror(ret)); return; } /* Print the list of names. */ if (list != NULL) { for (file = list; *file != NULL; ++file) { - CtdlLogPrintf(CTDL_DEBUG, "Deleting log: %s\n", *file); + syslog(LOG_DEBUG, "Deleting log: %s", *file); ret = unlink(*file); if (ret != 0) { snprintf(errmsg, sizeof(errmsg), @@ -238,12 +236,12 @@ void cdb_checkpoint(void) { int ret; - CtdlLogPrintf(CTDL_DEBUG, "-- db checkpoint --\n"); + syslog(LOG_DEBUG, "-- db checkpoint --"); ret = dbenv->txn_checkpoint(dbenv, MAX_CHECKPOINT_KBYTES, MAX_CHECKPOINT_MINUTES, 0); if (ret != 0) { - CtdlLogPrintf(CTDL_EMERG, "cdb_checkpoint: txn_checkpoint: %s\n", db_strerror(ret)); - abort(); + syslog(LOG_EMERG, "cdb_checkpoint: txn_checkpoint: %s", db_strerror(ret)); + cdb_abort(); } /* After a successful checkpoint, we can cull the unused logs */ @@ -269,57 +267,55 @@ void open_databases(void) int dbversion_major, dbversion_minor, dbversion_patch; int current_dbversion = 0; - CtdlLogPrintf(CTDL_DEBUG, "bdb(): open_databases() starting\n"); - CtdlLogPrintf(CTDL_DEBUG, "Compiled db: %s\n", DB_VERSION_STRING); - CtdlLogPrintf(CTDL_INFO, " Linked db: %s\n", + syslog(LOG_DEBUG, "bdb(): open_databases() starting"); + syslog(LOG_DEBUG, "Compiled db: %s", DB_VERSION_STRING); + syslog(LOG_INFO, " Linked db: %s", db_version(&dbversion_major, &dbversion_minor, &dbversion_patch)); current_dbversion = (dbversion_major * 1000000) + (dbversion_minor * 1000) + dbversion_patch; - CtdlLogPrintf(CTDL_DEBUG, "Calculated dbversion: %d\n", current_dbversion); - CtdlLogPrintf(CTDL_DEBUG, " Previous dbversion: %d\n", CitControl.MMdbversion); + syslog(LOG_DEBUG, "Calculated dbversion: %d", current_dbversion); + syslog(LOG_DEBUG, " Previous dbversion: %d", CitControl.MMdbversion); if ( (getenv("SUPPRESS_DBVERSION_CHECK") == NULL) && (CitControl.MMdbversion > current_dbversion) ) { - CtdlLogPrintf(CTDL_EMERG, "You are attempting to run the Citadel server using a version\n" - "of Berkeley DB that is older than that which last created or\n" - "updated the database. Because this would probably cause data\n" - "corruption or loss, the server is aborting execution now.\n"); + syslog(LOG_EMERG, "You are attempting to run the Citadel server using a version"); + syslog(LOG_EMERG, "of Berkeley DB that is older than that which last created or"); + syslog(LOG_EMERG, "updated the database. Because this would probably cause data"); + syslog(LOG_EMERG, "corruption or loss, the server is aborting execution now."); exit(CTDLEXIT_DB); } CitControl.MMdbversion = current_dbversion; put_control(); -#ifdef HAVE_ZLIB - CtdlLogPrintf(CTDL_INFO, "Linked zlib: %s\n", zlibVersion()); -#endif + syslog(LOG_INFO, "Linked zlib: %s\n", zlibVersion()); /* * Silently try to create the database subdirectory. If it's * already there, no problem. */ if ((mkdir(ctdl_data_dir, 0700) != 0) && (errno != EEXIST)){ - CtdlLogPrintf(CTDL_EMERG, + syslog(LOG_EMERG, "unable to create database directory [%s]: %s", ctdl_data_dir, strerror(errno)); } if (chmod(ctdl_data_dir, 0700) != 0){ - CtdlLogPrintf(CTDL_EMERG, + syslog(LOG_EMERG, "unable to set database directory accessrights [%s]: %s", ctdl_data_dir, strerror(errno)); } if (chown(ctdl_data_dir, CTDLUID, (-1)) != 0){ - CtdlLogPrintf(CTDL_EMERG, + syslog(LOG_EMERG, "unable to set the owner for [%s]: %s", ctdl_data_dir, strerror(errno)); } - CtdlLogPrintf(CTDL_DEBUG, "bdb(): Setting up DB environment\n"); - db_env_set_func_yield((int (*)(u_long, u_long))sched_yield); + syslog(LOG_DEBUG, "bdb(): Setting up DB environment\n"); + /* db_env_set_func_yield((int (*)(u_long, u_long))sched_yield); */ ret = db_env_create(&dbenv, 0); if (ret) { - CtdlLogPrintf(CTDL_EMERG, "bdb(): db_env_create: %s\n", db_strerror(ret)); - CtdlLogPrintf(CTDL_EMERG, "exit code %d\n", ret); + syslog(LOG_EMERG, "bdb(): db_env_create: %s\n", db_strerror(ret)); + syslog(LOG_EMERG, "exit code %d\n", ret); exit(CTDLEXIT_DB); } dbenv->set_errpfx(dbenv, "citserver"); @@ -338,51 +334,51 @@ void open_databases(void) */ ret = dbenv->set_cachesize(dbenv, 0, 64 * 1024, 0); if (ret) { - CtdlLogPrintf(CTDL_EMERG, "bdb(): set_cachesize: %s\n", db_strerror(ret)); + syslog(LOG_EMERG, "bdb(): set_cachesize: %s\n", db_strerror(ret)); dbenv->close(dbenv, 0); - CtdlLogPrintf(CTDL_EMERG, "exit code %d\n", ret); + syslog(LOG_EMERG, "exit code %d\n", ret); exit(CTDLEXIT_DB); } if ((ret = dbenv->set_lk_detect(dbenv, DB_LOCK_DEFAULT))) { - CtdlLogPrintf(CTDL_EMERG, "bdb(): set_lk_detect: %s\n", db_strerror(ret)); + syslog(LOG_EMERG, "bdb(): set_lk_detect: %s\n", db_strerror(ret)); dbenv->close(dbenv, 0); - CtdlLogPrintf(CTDL_EMERG, "exit code %d\n", ret); + syslog(LOG_EMERG, "exit code %d\n", ret); exit(CTDLEXIT_DB); } flags = DB_CREATE | DB_INIT_MPOOL | DB_PRIVATE | DB_INIT_TXN | DB_INIT_LOCK | DB_THREAD | DB_RECOVER; - CtdlLogPrintf(CTDL_DEBUG, "dbenv->open(dbenv, %s, %d, 0)\n", ctdl_data_dir, flags); + syslog(LOG_DEBUG, "dbenv->open(dbenv, %s, %d, 0)\n", ctdl_data_dir, flags); ret = dbenv->open(dbenv, ctdl_data_dir, flags, 0); if (ret == DB_RUNRECOVERY) { - CtdlLogPrintf(CTDL_ALERT, "dbenv->open: %s\n", db_strerror(ret)); - CtdlLogPrintf(CTDL_ALERT, "Attempting recovery...\n"); + syslog(LOG_ALERT, "dbenv->open: %s\n", db_strerror(ret)); + syslog(LOG_ALERT, "Attempting recovery...\n"); flags |= DB_RECOVER; ret = dbenv->open(dbenv, ctdl_data_dir, flags, 0); } if (ret == DB_RUNRECOVERY) { - CtdlLogPrintf(CTDL_ALERT, "dbenv->open: %s\n", db_strerror(ret)); - CtdlLogPrintf(CTDL_ALERT, "Attempting catastrophic recovery...\n"); + syslog(LOG_ALERT, "dbenv->open: %s\n", db_strerror(ret)); + syslog(LOG_ALERT, "Attempting catastrophic recovery...\n"); flags &= ~DB_RECOVER; flags |= DB_RECOVER_FATAL; ret = dbenv->open(dbenv, ctdl_data_dir, flags, 0); } if (ret) { - CtdlLogPrintf(CTDL_EMERG, "dbenv->open: %s\n", db_strerror(ret)); + syslog(LOG_EMERG, "dbenv->open: %s\n", db_strerror(ret)); dbenv->close(dbenv, 0); - CtdlLogPrintf(CTDL_EMERG, "exit code %d\n", ret); + syslog(LOG_EMERG, "exit code %d\n", ret); exit(CTDLEXIT_DB); } - CtdlLogPrintf(CTDL_INFO, "Starting up DB\n"); + syslog(LOG_INFO, "Starting up DB\n"); for (i = 0; i < MAXCDB; ++i) { /* Create a database handle */ ret = db_create(&dbp[i], dbenv, 0); if (ret) { - CtdlLogPrintf(CTDL_EMERG, "db_create: %s\n", db_strerror(ret)); - CtdlLogPrintf(CTDL_EMERG, "exit code %d\n", ret); + syslog(LOG_EMERG, "db_create: %s\n", db_strerror(ret)); + syslog(LOG_EMERG, "exit code %d\n", ret); exit(CTDLEXIT_DB); } @@ -401,11 +397,11 @@ void open_databases(void) 0600 ); if (ret) { - CtdlLogPrintf(CTDL_EMERG, "db_open[%02x]: %s\n", i, db_strerror(ret)); + syslog(LOG_EMERG, "db_open[%02x]: %s\n", i, db_strerror(ret)); if (ret == ENOMEM) { - CtdlLogPrintf(CTDL_EMERG, "You may need to tune your database; please read http://www.citadel.org/doku.php/faq:troubleshooting:out_of_lock_entries for more information.\n"); + syslog(LOG_EMERG, "You may need to tune your database; please read http://www.citadel.org/doku.php?id=faq:troubleshooting:out_of_lock_entries for more information."); } - CtdlLogPrintf(CTDL_EMERG, "exit code %d\n", ret); + syslog(LOG_EMERG, "exit code %d\n", ret); exit(CTDLEXIT_DB); } } @@ -427,10 +423,10 @@ void cdb_chmod_data(void) { if (d->d_name[0] != '.') { snprintf(filename, sizeof filename, "%s/%s", ctdl_data_dir, d->d_name); - CtdlLogPrintf(CTDL_DEBUG, "chmod(%s, 0600) returned %d\n", + syslog(LOG_DEBUG, "chmod(%s, 0600) returned %d\n", filename, chmod(filename, 0600) ); - CtdlLogPrintf(CTDL_DEBUG, "chown(%s, CTDLUID, -1) returned %d\n", + syslog(LOG_DEBUG, "chown(%s, CTDLUID, -1) returned %d\n", filename, chown(filename, CTDLUID, (-1)) ); } @@ -438,7 +434,7 @@ void cdb_chmod_data(void) { closedir(dp); } - CtdlLogPrintf(CTDL_DEBUG, "open_databases() finished\n"); + syslog(LOG_DEBUG, "open_databases() finished\n"); CtdlRegisterProtoHook(cmd_cull, "CULL", "Cull database logs"); } @@ -452,10 +448,8 @@ void close_databases(void) int a; int ret; - ctdl_thread_internal_free_tsd(); - if ((ret = dbenv->txn_checkpoint(dbenv, 0, 0, 0))) { - CtdlLogPrintf(CTDL_EMERG, + syslog(LOG_EMERG, "txn_checkpoint: %s\n", db_strerror(ret)); } @@ -466,10 +460,10 @@ void close_databases(void) /* close the tables */ for (a = 0; a < MAXCDB; ++a) { - CtdlLogPrintf(CTDL_INFO, "Closing database %02x\n", a); + syslog(LOG_INFO, "Closing database %02x\n", a); ret = dbp[a]->close(dbp[a], 0); if (ret) { - CtdlLogPrintf(CTDL_EMERG, "db_close: %s\n", db_strerror(ret)); + syslog(LOG_EMERG, "db_close: %s\n", db_strerror(ret)); } } @@ -477,13 +471,13 @@ void close_databases(void) /* Close the handle. */ ret = dbenv->close(dbenv, 0); if (ret) { - CtdlLogPrintf(CTDL_EMERG, "DBENV->close: %s\n", db_strerror(ret)); + syslog(LOG_EMERG, "DBENV->close: %s\n", db_strerror(ret)); } } /* - * Compression functions only used if we have zlib + * Decompress a database item if it was compressed on disk */ void cdb_decompress_if_necessary(struct cdbdata *cdb) { @@ -495,7 +489,6 @@ void cdb_decompress_if_necessary(struct cdbdata *cdb) (memcmp(cdb->ptr, &magic, sizeof(magic)))) return; -#ifdef HAVE_ZLIB /* At this point we know we're looking at a compressed item. */ struct CtdlCompressHeader zheader; @@ -521,17 +514,13 @@ void cdb_decompress_if_necessary(struct cdbdata *cdb) (uLongf *) & destLen, (const Bytef *) compressed_data, (uLong) sourceLen) != Z_OK) { - CtdlLogPrintf(CTDL_EMERG, "uncompress() error\n"); - abort(); + syslog(LOG_EMERG, "uncompress() error\n"); + cdb_abort(); } free(cdb->ptr); cdb->len = (size_t) destLen; cdb->ptr = uncompressed_data; -#else /* HAVE_ZLIB */ - CtdlLogPrintf(CTDL_EMERG, "Database contains compressed data, but this citserver was built without compression support.\n"); - abort(); -#endif /* HAVE_ZLIB */ } @@ -547,22 +536,21 @@ int cdb_store(int cdb, const void *ckey, int ckeylen, void *cdata, int cdatalen) DB_TXN *tid; int ret = 0; -#ifdef HAVE_ZLIB struct CtdlCompressHeader zheader; char *compressed_data = NULL; int compressing = 0; size_t buffer_len = 0; uLongf destLen = 0; -#endif memset(&dkey, 0, sizeof(DBT)); memset(&ddata, 0, sizeof(DBT)); dkey.size = ckeylen; + /* no, we don't care for this error. */ dkey.data = ckey; + ddata.size = cdatalen; ddata.data = cdata; -#ifdef HAVE_ZLIB /* Only compress Visit records. Everything else is uncompressed. */ if (cdb == CDB_VISIT) { compressing = 1; @@ -575,34 +563,31 @@ int cdb_store(int cdb, const void *ckey, int ckeylen, void *cdata, int cdatalen) if (compress2((Bytef *) (compressed_data + sizeof(struct CtdlCompressHeader)), &destLen, (Bytef *) cdata, (uLongf) cdatalen, 1) != Z_OK) { - CtdlLogPrintf(CTDL_EMERG, "compress2() error\n"); - abort(); + syslog(LOG_EMERG, "compress2() error\n"); + cdb_abort(); } zheader.compressed_len = (size_t) destLen; memcpy(compressed_data, &zheader, sizeof(struct CtdlCompressHeader)); ddata.size = (size_t) (sizeof(struct CtdlCompressHeader) + zheader.compressed_len); ddata.data = compressed_data; } -#endif - if (MYTID != NULL) { + if (TSD->tid != NULL) { ret = dbp[cdb]->put(dbp[cdb], /* db */ - MYTID, /* transaction ID */ + TSD->tid, /* transaction ID */ &dkey, /* key */ &ddata, /* data */ 0); /* flags */ if (ret) { - CtdlLogPrintf(CTDL_EMERG, "cdb_store(%d): %s\n", cdb, db_strerror(ret)); - abort(); + syslog(LOG_EMERG, "cdb_store(%d): %s", cdb, db_strerror(ret)); + cdb_abort(); } -#ifdef HAVE_ZLIB if (compressing) free(compressed_data); -#endif return ret; } else { - bailIfCursor(MYCURSORS, "attempt to write during r/o cursor"); + bailIfCursor(TSD->cursors, "attempt to write during r/o cursor"); retry: txbegin(&tid); @@ -616,20 +601,18 @@ int cdb_store(int cdb, const void *ckey, int ckeylen, void *cdata, int cdatalen) txabort(tid); goto retry; } else { - CtdlLogPrintf(CTDL_EMERG, "cdb_store(%d): %s\n", - cdb, db_strerror(ret)); - abort(); + syslog(LOG_EMERG, "cdb_store(%d): %s", cdb, db_strerror(ret)); + cdb_abort(); } } else { txcommit(tid); -#ifdef HAVE_ZLIB if (compressing) { free(compressed_data); } -#endif return ret; } } + return ret; } @@ -647,16 +630,16 @@ int cdb_delete(int cdb, void *key, int keylen) dkey.size = keylen; dkey.data = key; - if (MYTID != NULL) { - ret = dbp[cdb]->del(dbp[cdb], MYTID, &dkey, 0); + if (TSD->tid != NULL) { + ret = dbp[cdb]->del(dbp[cdb], TSD->tid, &dkey, 0); if (ret) { - CtdlLogPrintf(CTDL_EMERG, "cdb_delete(%d): %s\n", cdb, db_strerror(ret)); + syslog(LOG_EMERG, "cdb_delete(%d): %s\n", cdb, db_strerror(ret)); if (ret != DB_NOTFOUND) { - abort(); + cdb_abort(); } } } else { - bailIfCursor(MYCURSORS, "attempt to delete during r/o cursor"); + bailIfCursor(TSD->cursors, "attempt to delete during r/o cursor"); retry: txbegin(&tid); @@ -667,9 +650,9 @@ int cdb_delete(int cdb, void *key, int keylen) txabort(tid); goto retry; } else { - CtdlLogPrintf(CTDL_EMERG, "cdb_delete(%d): %s\n", + syslog(LOG_EMERG, "cdb_delete(%d): %s\n", cdb, db_strerror(ret)); - abort(); + cdb_abort(); } } else { txcommit(tid); @@ -683,16 +666,14 @@ static DBC *localcursor(int cdb) int ret; DBC *curs; - if (MYCURSORS[cdb] == NULL) - ret = dbp[cdb]->cursor(dbp[cdb], MYTID, &curs, 0); + if (TSD->cursors[cdb] == NULL) + ret = dbp[cdb]->cursor(dbp[cdb], TSD->tid, &curs, 0); else - ret = - MYCURSORS[cdb]->c_dup(MYCURSORS[cdb], &curs, - DB_POSITION); + ret = TSD->cursors[cdb]->c_dup(TSD->cursors[cdb], &curs, DB_POSITION); if (ret) { - CtdlLogPrintf(CTDL_EMERG, "localcursor: %s\n", db_strerror(ret)); - abort(); + syslog(LOG_EMERG, "localcursor: %s\n", db_strerror(ret)); + cdb_abort(); } return curs; @@ -706,19 +687,19 @@ static DBC *localcursor(int cdb) */ struct cdbdata *cdb_fetch(int cdb, const void *key, int keylen) { - struct cdbdata *tempcdb; DBT dkey, dret; int ret; memset(&dkey, 0, sizeof(DBT)); dkey.size = keylen; + /* no we don't care about this error. */ dkey.data = key; - if (MYTID != NULL) { + if (TSD->tid != NULL) { memset(&dret, 0, sizeof(DBT)); dret.flags = DB_DBT_MALLOC; - ret = dbp[cdb]->get(dbp[cdb], MYTID, &dkey, &dret, 0); + ret = dbp[cdb]->get(dbp[cdb], TSD->tid, &dkey, &dret, 0); } else { DBC *curs; @@ -736,8 +717,8 @@ struct cdbdata *cdb_fetch(int cdb, const void *key, int keylen) } if ((ret != 0) && (ret != DB_NOTFOUND)) { - CtdlLogPrintf(CTDL_EMERG, "cdb_fetch(%d): %s\n", cdb, db_strerror(ret)); - abort(); + syslog(LOG_EMERG, "cdb_fetch(%d): %s\n", cdb, db_strerror(ret)); + cdb_abort(); } if (ret != 0) @@ -745,14 +726,17 @@ struct cdbdata *cdb_fetch(int cdb, const void *key, int keylen) tempcdb = (struct cdbdata *) malloc(sizeof(struct cdbdata)); if (tempcdb == NULL) { - CtdlLogPrintf(CTDL_EMERG, "cdb_fetch: Cannot allocate memory for tempcdb\n"); - abort(); + syslog(LOG_EMERG, "cdb_fetch: Cannot allocate memory for tempcdb\n"); + cdb_abort(); + return NULL; /* make it easier for static analysis... */ + } + else + { + tempcdb->len = dret.size; + tempcdb->ptr = dret.data; + cdb_decompress_if_necessary(tempcdb); + return (tempcdb); } - - tempcdb->len = dret.size; - tempcdb->ptr = dret.data; - cdb_decompress_if_necessary(tempcdb); - return (tempcdb); } @@ -774,11 +758,11 @@ void cdb_free(struct cdbdata *cdb) void cdb_close_cursor(int cdb) { - if (MYCURSORS[cdb] != NULL) { - cclose(MYCURSORS[cdb]); + if (TSD->cursors[cdb] != NULL) { + cclose(TSD->cursors[cdb]); } - MYCURSORS[cdb] = NULL; + TSD->cursors[cdb] = NULL; } /* @@ -790,20 +774,20 @@ void cdb_rewind(int cdb) { int ret = 0; - if (MYCURSORS[cdb] != NULL) { - CtdlLogPrintf(CTDL_EMERG, - "cdb_rewind: must close cursor on database %d before reopening.\n", cdb); - abort(); - /* cclose(MYCURSORS[cdb]); */ + if (TSD->cursors[cdb] != NULL) { + syslog(LOG_EMERG, + "cdb_rewind: must close cursor on database %d before reopening.\n", cdb); + cdb_abort(); + /* cclose(TSD->cursors[cdb]); */ } /* * Now initialize the cursor */ - ret = dbp[cdb]->cursor(dbp[cdb], MYTID, &MYCURSORS[cdb], 0); + ret = dbp[cdb]->cursor(dbp[cdb], TSD->tid, &TSD->cursors[cdb], 0); if (ret) { - CtdlLogPrintf(CTDL_EMERG, "cdb_rewind: db_cursor: %s\n", db_strerror(ret)); - abort(); + syslog(LOG_EMERG, "cdb_rewind: db_cursor: %s\n", db_strerror(ret)); + cdb_abort(); } } @@ -823,15 +807,14 @@ struct cdbdata *cdb_next_item(int cdb) memset(&data, 0, sizeof(data)); data.flags = DB_DBT_MALLOC; - ret = MYCURSORS[cdb]->c_get(MYCURSORS[cdb], &key, &data, DB_NEXT); + ret = TSD->cursors[cdb]->c_get(TSD->cursors[cdb], &key, &data, DB_NEXT); if (ret) { if (ret != DB_NOTFOUND) { - CtdlLogPrintf(CTDL_EMERG, "cdb_next_item(%d): %s\n", cdb, db_strerror(ret)); - abort(); + syslog(LOG_EMERG, "cdb_next_item(%d): %s\n", cdb, db_strerror(ret)); + cdb_abort(); } - cclose(MYCURSORS[cdb]); - MYCURSORS[cdb] = NULL; + cdb_close_cursor(cdb); return NULL; /* presumably, end of file */ } @@ -852,14 +835,14 @@ struct cdbdata *cdb_next_item(int cdb) void cdb_begin_transaction(void) { - bailIfCursor(MYCURSORS, "can't begin transaction during r/o cursor"); + bailIfCursor(TSD->cursors, "can't begin transaction during r/o cursor"); - if (MYTID != NULL) { - CtdlLogPrintf(CTDL_EMERG, "cdb_begin_transaction: ERROR: nested transaction\n"); - abort(); + if (TSD->tid != NULL) { + syslog(LOG_EMERG, "cdb_begin_transaction: ERROR: nested transaction\n"); + cdb_abort(); } - txbegin(&MYTID); + txbegin(&TSD->tid); } void cdb_end_transaction(void) @@ -867,23 +850,23 @@ void cdb_end_transaction(void) int i; for (i = 0; i < MAXCDB; i++) - if (MYCURSORS[i] != NULL) { - CtdlLogPrintf(CTDL_WARNING, + if (TSD->cursors[i] != NULL) { + syslog(LOG_WARNING, "cdb_end_transaction: WARNING: cursor %d still open at transaction end\n", i); - cclose(MYCURSORS[i]); - MYCURSORS[i] = NULL; + cclose(TSD->cursors[i]); + TSD->cursors[i] = NULL; } - if (MYTID == NULL) { - CtdlLogPrintf(CTDL_EMERG, + if (TSD->tid == NULL) { + syslog(LOG_EMERG, "cdb_end_transaction: ERROR: txcommit(NULL) !!\n"); - abort(); + cdb_abort(); } else { - txcommit(MYTID); + txcommit(TSD->tid); } - MYTID = NULL; + TSD->tid = NULL; } /* @@ -895,12 +878,11 @@ void cdb_trunc(int cdb) int ret; u_int32_t count; - if (MYTID != NULL) { - CtdlLogPrintf(CTDL_EMERG, - "cdb_trunc must not be called in a transaction.\n"); - abort(); + if (TSD->tid != NULL) { + syslog(LOG_EMERG, "cdb_trunc must not be called in a transaction."); + cdb_abort(); } else { - bailIfCursor(MYCURSORS, "attempt to write during r/o cursor"); + bailIfCursor(TSD->cursors, "attempt to write during r/o cursor"); retry: /* txbegin(&tid); */ @@ -913,14 +895,95 @@ void cdb_trunc(int cdb) /* txabort(tid); */ goto retry; } else { - CtdlLogPrintf(CTDL_EMERG, "cdb_truncate(%d): %s\n", cdb, db_strerror(ret)); + syslog(LOG_EMERG, "cdb_truncate(%d): %s\n", cdb, db_strerror(ret)); if (ret == ENOMEM) { - CtdlLogPrintf(CTDL_EMERG, "You may need to tune your database; please read http://www.citadel.org/doku.php/faq:troubleshooting:out_of_lock_entries for more information.\n"); + syslog(LOG_EMERG, "You may need to tune your database; please read http://www.citadel.org/doku.php?id=faq:troubleshooting:out_of_lock_entries for more information."); } - abort(); + exit(CTDLEXIT_DB); } } else { /* txcommit(tid); */ } } } + +int SeentDebugEnabled = 0; + +#define DBGLOG(LEVEL) if ((LEVEL != LOG_DEBUG) || (SeentDebugEnabled != 0)) +#define SEENM_syslog(LEVEL, FORMAT) \ + DBGLOG(LEVEL) syslog(LEVEL, \ + "IO[%ld]CC[%ld] SEEN[%s][%d] " FORMAT, \ + ioid, ccid, Facility, cType) + +time_t CheckIfAlreadySeen(const char *Facility, + StrBuf *guid, + time_t now, + time_t antiexpire, + eCheckType cType, + long ccid, + long ioid) +{ + struct UseTable ut; + struct cdbdata *cdbut; + + if (cType != eWrite) + { + time_t InDBTimeStamp = 0; + SEENM_syslog(LOG_DEBUG, "Loading"); + cdbut = cdb_fetch(CDB_USETABLE, SKEY(guid)); + if (cdbut != NULL) { + memcpy(&ut, cdbut->ptr, + ((cdbut->len > sizeof(struct UseTable)) ? + sizeof(struct UseTable) : cdbut->len)); + + if (ut.ut_timestamp > antiexpire) + { + SEENM_syslog(LOG_DEBUG, "Found - Not expired."); + cdb_free(cdbut); + return ut.ut_timestamp; + } + else + { + SEENM_syslog(LOG_DEBUG, "Found - Expired."); + InDBTimeStamp = ut.ut_timestamp; + cdb_free(cdbut); + } + } + else + { + SEENM_syslog(LOG_DEBUG, "not Found"); + } + + if (cType == eCheckExist) + return InDBTimeStamp; + } + + memcpy(ut.ut_msgid, SKEY(guid)); + ut.ut_timestamp = now; + + SEENM_syslog(LOG_DEBUG, "Saving"); + /* rewrite the record anyway, to update the timestamp */ + cdb_store(CDB_USETABLE, + SKEY(guid), + &ut, sizeof(struct UseTable) ); + + SEENM_syslog(LOG_DEBUG, "Done Saving"); + return 0; +} + + +void LogDebugEnableSeenEnable(const int n) +{ + SeentDebugEnabled = n; +} + +CTDL_MODULE_INIT(database) +{ + if (!threading) + { + CtdlRegisterDebugFlagHook(HKEY("SeenDebug"), LogDebugEnableSeenEnable, &SeentDebugEnabled); + } + + /* return our module id for the log */ + return "database"; +}