X-Git-Url: https://code.citadel.org/?a=blobdiff_plain;f=citadel%2Fdatabase.c;h=71eccbf78541163fb87eec138bf7fc6ccdacf78e;hb=c750a06a241dc2737fa68c24b340a1bd82894f74;hp=4eb34cdd7a593fef68419b46bef176a93878d361;hpb=87adb75f05be524428f1563ab28a60b1795f4612;p=citadel.git diff --git a/citadel/database.c b/citadel/database.c index 4eb34cdd7..71eccbf78 100644 --- a/citadel/database.c +++ b/citadel/database.c @@ -1,7 +1,7 @@ /* * This is a data store backend for the Citadel server which uses Berkeley DB. * - * Copyright (c) 1987-2012 by the citadel.org team + * Copyright (c) 1987-2017 by the citadel.org team * * 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. @@ -10,7 +10,6 @@ * 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. - * */ /***************************************************************************** @@ -29,54 +28,50 @@ #include "sysdep.h" #include #include -#include -#include -#include -#include -#include #include +#include #include -#include #include #ifdef HAVE_DB_H #include #elif defined(HAVE_DB4_DB_H) -#include +#include #else -#error Neither nor was found by configure. Install db4-devel. +#error Neither nor was found by configure. Install db5-devel. #endif - -#if DB_VERSION_MAJOR < 4 || DB_VERSION_MINOR < 1 -#error Citadel requires Berkeley DB v4.1 or newer. Please upgrade. +#if DB_VERSION_MAJOR < 5 +#error Citadel requires Berkeley DB v5.0 or newer. Please upgrade. #endif - #include -#include "citadel.h" -#include "server.h" -#include "citserver.h" -#include "database.h" -#include "msgbase.h" -#include "sysdep_decls.h" -#include "threads.h" -#include "config.h" -#include "control.h" #include "ctdl_module.h" - +#include "control.h" +#include "citserver.h" +#include "config.h" static DB *dbp[MAXCDB]; /* One DB handle for each Citadel database */ static DB_ENV *dbenv; /* The DB environment (global) */ +void cdb_abort(void) { + syslog(LOG_DEBUG, "db: citserver is stopping in order to prevent data loss. uid=%d gid=%d euid=%d egid=%d", + getuid(), + getgid(), + geteuid(), + getegid() + ); + exit(CTDLEXIT_DB); +} + /* Verbose logging callback */ void cdb_verbose_log(const DB_ENV *dbenv, const char *msg) { if (!IsEmptyStr(msg)) { - syslog(LOG_DEBUG, "DB: %s", msg); + syslog(LOG_DEBUG, "db: %s", msg); } } @@ -84,7 +79,9 @@ 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) { - syslog(LOG_ALERT, "DB: %s", msg); + int *FOO = NULL; + syslog(LOG_ERR, "db: %s", msg); + *FOO = 1; } @@ -96,8 +93,8 @@ static void txabort(DB_TXN * tid) ret = tid->abort(tid); if (ret) { - syslog(LOG_EMERG, "bdb(): txn_abort: %s", db_strerror(ret)); - abort(); + syslog(LOG_ERR, "db: txn_abort: %s", db_strerror(ret)); + cdb_abort(); } } @@ -109,8 +106,8 @@ static void txcommit(DB_TXN * tid) ret = tid->commit(tid, 0); if (ret) { - syslog(LOG_EMERG, "bdb(): txn_commit: %s", db_strerror(ret)); - abort(); + syslog(LOG_ERR, "db: txn_commit: %s", db_strerror(ret)); + cdb_abort(); } } @@ -122,14 +119,14 @@ static void txbegin(DB_TXN ** tid) ret = dbenv->txn_begin(dbenv, NULL, tid, 0); if (ret) { - syslog(LOG_EMERG, "bdb(): txn_begin: %s", db_strerror(ret)); - abort(); + syslog(LOG_ERR, "db: txn_begin: %s", db_strerror(ret)); + cdb_abort(); } } static void dbpanic(DB_ENV * env, int errval) { - syslog(LOG_EMERG, "bdb(): PANIC: %s", db_strerror(errval)); + syslog(LOG_ERR, "db: PANIC: %s", db_strerror(errval)); } static void cclose(DBC * cursor) @@ -137,8 +134,8 @@ static void cclose(DBC * cursor) int ret; if ((ret = cursor->c_close(cursor))) { - syslog(LOG_EMERG, "bdb(): c_close: %s", db_strerror(ret)); - abort(); + syslog(LOG_ERR, "db: c_close: %s", db_strerror(ret)); + cdb_abort(); } } @@ -148,8 +145,8 @@ static void bailIfCursor(DBC ** cursors, const char *msg) for (i = 0; i < MAXCDB; i++) if (cursors[i] != NULL) { - syslog(LOG_EMERG, "bdb(): cursor still in progress on cdb %02x: %s", i, msg); - abort(); + syslog(LOG_ERR, "db: cursor still in progress on cdb %02x: %s", i, msg); + cdb_abort(); } } @@ -159,16 +156,17 @@ void cdb_check_handles(void) bailIfCursor(TSD->cursors, "in check_handles"); if (TSD->tid != NULL) { - syslog(LOG_EMERG, "bdb(): transaction still in progress!"); - abort(); + syslog(LOG_ERR, "db: transaction still in progress!"); + cdb_abort(); } } /* - * Cull the database logs + * Cull the database logs by removing log files that are no longer needed. + * Note: this code will be removed once we are confident that Berkeley DB can do this on its own. */ -static void cdb_cull_logs(void) +void cdb_cull_logs(void) { u_int32_t flags; int ret; @@ -179,14 +177,14 @@ static void cdb_cull_logs(void) /* Get the list of names. */ if ((ret = dbenv->log_archive(dbenv, &list, flags)) != 0) { - syslog(LOG_ERR, "cdb_cull_logs: %s", db_strerror(ret)); + syslog(LOG_ERR, "db: cdb_cull_logs() %s", db_strerror(ret)); return; } /* Print the list of names. */ if (list != NULL) { for (file = list; *file != NULL; ++file) { - syslog(LOG_DEBUG, "Deleting log: %s", *file); + syslog(LOG_DEBUG, "db: deleting log %s", *file); ret = unlink(*file); if (ret != 0) { snprintf(errmsg, sizeof(errmsg), @@ -204,15 +202,6 @@ static void cdb_cull_logs(void) } } -/* - * Manually initiate log file cull. - */ -void cmd_cull(char *argbuf) { - if (CtdlAccessCheck(ac_internal)) return; - cdb_cull_logs(); - cprintf("%d Database log file cull completed.", CIT_OK); -} - /* * Request a checkpoint of the database. Called once per minute by the thread manager. @@ -221,18 +210,27 @@ void cdb_checkpoint(void) { int ret; - syslog(LOG_DEBUG, "-- db checkpoint --"); + syslog(LOG_DEBUG, "db: -- checkpoint --"); ret = dbenv->txn_checkpoint(dbenv, MAX_CHECKPOINT_KBYTES, MAX_CHECKPOINT_MINUTES, 0); if (ret != 0) { - syslog(LOG_EMERG, "cdb_checkpoint: txn_checkpoint: %s", db_strerror(ret)); - abort(); + syslog(LOG_ERR, "db: cdb_checkpoint() txn_checkpoint: %s", db_strerror(ret)); + cdb_abort(); } /* After a successful checkpoint, we can cull the unused logs */ - if (config.c_auto_cull) { - cdb_cull_logs(); + if (CtdlGetConfigInt("c_auto_cull")) { +#ifdef DB_LOG_AUTO_REMOVE + ret = dbenv->log_set_config(dbenv, DB_LOG_AUTO_REMOVE, 1); // This version of Berkeley DB can cull the logs on its own! +#else + cdb_cull_logs(); // Citadel knows how to do it too. +#endif } +#ifdef DB_LOG_AUTO_REMOVE + else { + ret = dbenv->log_set_config(dbenv, DB_LOG_AUTO_REMOVE, 0); + } +#endif } @@ -250,66 +248,38 @@ void open_databases(void) char dbfilename[32]; u_int32_t flags = 0; int dbversion_major, dbversion_minor, dbversion_patch; - int current_dbversion = 0; - - 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; - - 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) ) { - 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(); - - syslog(LOG_INFO, "Linked zlib: %s\n", zlibVersion()); + syslog(LOG_DEBUG, "db: open_databases() starting"); + syslog(LOG_DEBUG, "db: Compiled libdb: %s", DB_VERSION_STRING); + syslog(LOG_DEBUG, "db: Linked libdb: %s", db_version(&dbversion_major, &dbversion_minor, &dbversion_patch)); + syslog(LOG_DEBUG, "db: Linked zlib: %s", zlibVersion()); /* * Silently try to create the database subdirectory. If it's * already there, no problem. */ if ((mkdir(ctdl_data_dir, 0700) != 0) && (errno != EEXIST)){ - syslog(LOG_EMERG, - "unable to create database directory [%s]: %s", - ctdl_data_dir, strerror(errno)); + syslog(LOG_ERR, "db: unable to create database directory [%s]: %m", ctdl_data_dir); } if (chmod(ctdl_data_dir, 0700) != 0){ - syslog(LOG_EMERG, - "unable to set database directory accessrights [%s]: %s", - ctdl_data_dir, strerror(errno)); + syslog(LOG_ERR, "db: unable to set database directory accessrights [%s]: %m", ctdl_data_dir); } if (chown(ctdl_data_dir, CTDLUID, (-1)) != 0){ - syslog(LOG_EMERG, - "unable to set the owner for [%s]: %s", - ctdl_data_dir, strerror(errno)); + syslog(LOG_ERR, "db: unable to set the owner for [%s]: %m", ctdl_data_dir); } - syslog(LOG_DEBUG, "bdb(): Setting up DB environment\n"); + syslog(LOG_DEBUG, "db: 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) { - syslog(LOG_EMERG, "bdb(): db_env_create: %s\n", db_strerror(ret)); - syslog(LOG_EMERG, "exit code %d\n", ret); + syslog(LOG_ERR, "db: db_env_create: %s", db_strerror(ret)); + syslog(LOG_ERR, "db: exit code %d", ret); exit(CTDLEXIT_DB); } dbenv->set_errpfx(dbenv, "citserver"); dbenv->set_paniccall(dbenv, dbpanic); dbenv->set_errcall(dbenv, cdb_verbose_err); dbenv->set_errpfx(dbenv, "ctdl"); -#if (DB_VERSION_MAJOR == 4) && (DB_VERSION_MINOR >= 3) dbenv->set_msgcall(dbenv, cdb_verbose_log); -#endif dbenv->set_verbose(dbenv, DB_VERB_DEADLOCK, 1); dbenv->set_verbose(dbenv, DB_VERB_RECOVERY, 1); @@ -319,51 +289,51 @@ void open_databases(void) */ ret = dbenv->set_cachesize(dbenv, 0, 64 * 1024, 0); if (ret) { - syslog(LOG_EMERG, "bdb(): set_cachesize: %s\n", db_strerror(ret)); + syslog(LOG_ERR, "db: set_cachesize: %s", db_strerror(ret)); dbenv->close(dbenv, 0); - syslog(LOG_EMERG, "exit code %d\n", ret); + syslog(LOG_ERR, "db: exit code %d", ret); exit(CTDLEXIT_DB); } if ((ret = dbenv->set_lk_detect(dbenv, DB_LOCK_DEFAULT))) { - syslog(LOG_EMERG, "bdb(): set_lk_detect: %s\n", db_strerror(ret)); + syslog(LOG_ERR, "db: set_lk_detect: %s", db_strerror(ret)); dbenv->close(dbenv, 0); - syslog(LOG_EMERG, "exit code %d\n", ret); + syslog(LOG_ERR, "db: exit code %d", ret); exit(CTDLEXIT_DB); } flags = DB_CREATE | DB_INIT_MPOOL | DB_PRIVATE | DB_INIT_TXN | DB_INIT_LOCK | DB_THREAD | DB_RECOVER; - syslog(LOG_DEBUG, "dbenv->open(dbenv, %s, %d, 0)\n", ctdl_data_dir, flags); + syslog(LOG_DEBUG, "db: dbenv->open(dbenv, %s, %d, 0)", ctdl_data_dir, flags); ret = dbenv->open(dbenv, ctdl_data_dir, flags, 0); if (ret == DB_RUNRECOVERY) { - syslog(LOG_ALERT, "dbenv->open: %s\n", db_strerror(ret)); - syslog(LOG_ALERT, "Attempting recovery...\n"); + syslog(LOG_ERR, "db: dbenv->open: %s", db_strerror(ret)); + syslog(LOG_ERR, "db: attempting recovery..."); flags |= DB_RECOVER; ret = dbenv->open(dbenv, ctdl_data_dir, flags, 0); } if (ret == DB_RUNRECOVERY) { - syslog(LOG_ALERT, "dbenv->open: %s\n", db_strerror(ret)); - syslog(LOG_ALERT, "Attempting catastrophic recovery...\n"); + syslog(LOG_ERR, "db: dbenv->open: %s", db_strerror(ret)); + syslog(LOG_ERR, "db: attempting catastrophic recovery..."); flags &= ~DB_RECOVER; flags |= DB_RECOVER_FATAL; ret = dbenv->open(dbenv, ctdl_data_dir, flags, 0); } if (ret) { - syslog(LOG_EMERG, "dbenv->open: %s\n", db_strerror(ret)); + syslog(LOG_ERR, "db: dbenv->open: %s", db_strerror(ret)); dbenv->close(dbenv, 0); - syslog(LOG_EMERG, "exit code %d\n", ret); + syslog(LOG_ERR, "db: exit code %d", ret); exit(CTDLEXIT_DB); } - syslog(LOG_INFO, "Starting up DB\n"); + syslog(LOG_INFO, "db: mounting databases"); for (i = 0; i < MAXCDB; ++i) { /* Create a database handle */ ret = db_create(&dbp[i], dbenv, 0); if (ret) { - syslog(LOG_EMERG, "db_create: %s\n", db_strerror(ret)); - syslog(LOG_EMERG, "exit code %d\n", ret); + syslog(LOG_ERR, "db: db_create: %s", db_strerror(ret)); + syslog(LOG_ERR, "db: exit code %d", ret); exit(CTDLEXIT_DB); } @@ -382,11 +352,11 @@ void open_databases(void) 0600 ); if (ret) { - syslog(LOG_EMERG, "db_open[%02x]: %s\n", i, db_strerror(ret)); + syslog(LOG_ERR, "db: db_open[%02x]: %s", i, db_strerror(ret)); if (ret == ENOMEM) { - syslog(LOG_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_ERR, "db: 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."); } - syslog(LOG_EMERG, "exit code %d\n", ret); + syslog(LOG_ERR, "db: exit code %d", ret); exit(CTDLEXIT_DB); } } @@ -406,12 +376,9 @@ void cdb_chmod_data(void) { if (dp != NULL) { while (d = readdir(dp), d != NULL) { if (d->d_name[0] != '.') { - snprintf(filename, sizeof filename, - "%s/%s", ctdl_data_dir, d->d_name); - syslog(LOG_DEBUG, "chmod(%s, 0600) returned %d\n", - filename, chmod(filename, 0600) - ); - syslog(LOG_DEBUG, "chown(%s, CTDLUID, -1) returned %d\n", + snprintf(filename, sizeof filename, "%s/%s", ctdl_data_dir, d->d_name); + syslog(LOG_DEBUG, "db: chmod(%s, 0600) returned %d", filename, chmod(filename, 0600)); + syslog(LOG_DEBUG, "db: chown(%s, CTDLUID, -1) returned %d", filename, chown(filename, CTDLUID, (-1)) ); } @@ -419,8 +386,7 @@ void cdb_chmod_data(void) { closedir(dp); } - syslog(LOG_DEBUG, "open_databases() finished\n"); - CtdlRegisterProtoHook(cmd_cull, "CULL", "Cull database logs"); + syslog(LOG_DEBUG, "db: open_databases() finished"); } @@ -433,9 +399,14 @@ void close_databases(void) int a; int ret; + syslog(LOG_INFO, "db: performing final checkpoint"); if ((ret = dbenv->txn_checkpoint(dbenv, 0, 0, 0))) { - syslog(LOG_EMERG, - "txn_checkpoint: %s\n", db_strerror(ret)); + syslog(LOG_ERR, "txn_checkpoint: %s", db_strerror(ret)); + } + + syslog(LOG_INFO, "db: flushing the database logs"); + if ((ret = dbenv->log_flush(dbenv, NULL))) { + syslog(LOG_ERR, "db: log_flush: %s", db_strerror(ret)); } /* print some statistics... */ @@ -445,10 +416,10 @@ void close_databases(void) /* close the tables */ for (a = 0; a < MAXCDB; ++a) { - syslog(LOG_INFO, "Closing database %02x\n", a); + syslog(LOG_INFO, "db: closing database %02x", a); ret = dbp[a]->close(dbp[a], 0); if (ret) { - syslog(LOG_EMERG, "db_close: %s\n", db_strerror(ret)); + syslog(LOG_ERR, "db: db_close: %s", db_strerror(ret)); } } @@ -456,7 +427,7 @@ void close_databases(void) /* Close the handle. */ ret = dbenv->close(dbenv, 0); if (ret) { - syslog(LOG_EMERG, "DBENV->close: %s\n", db_strerror(ret)); + syslog(LOG_EMERG, "db: DBENV->close: %s", db_strerror(ret)); } } @@ -498,9 +469,10 @@ void cdb_decompress_if_necessary(struct cdbdata *cdb) if (uncompress((Bytef *) uncompressed_data, (uLongf *) & destLen, (const Bytef *) compressed_data, - (uLong) sourceLen) != Z_OK) { - syslog(LOG_EMERG, "uncompress() error\n"); - abort(); + (uLong) sourceLen) != Z_OK) + { + syslog(LOG_EMERG, "db: uncompress() error"); + cdb_abort(); } free(cdb->ptr); @@ -509,7 +481,6 @@ void cdb_decompress_if_necessary(struct cdbdata *cdb) } - /* * Store a piece of data. Returns 0 if the operation was successful. If a * key already exists it should be overwritten. @@ -530,24 +501,23 @@ int cdb_store(int cdb, const void *ckey, int ckeylen, void *cdata, int cdatalen) memset(&dkey, 0, sizeof(DBT)); memset(&ddata, 0, sizeof(DBT)); dkey.size = ckeylen; - dkey.data = ckey; + dkey.data = (void *)ckey; ddata.size = cdatalen; ddata.data = cdata; - /* Only compress Visit records. Everything else is uncompressed. */ - if (cdb == CDB_VISIT) { + /* Only compress Visit and UseTable records. Everything else is uncompressed. */ + if ( (cdb == CDB_VISIT) || (cdb == CDB_USETABLE) ) { compressing = 1; zheader.magic = COMPRESS_MAGIC; zheader.uncompressed_len = cdatalen; - buffer_len = ((cdatalen * 101) / 100) + 100 - + sizeof(struct CtdlCompressHeader); + buffer_len = ((cdatalen * 101) / 100) + 100 + sizeof(struct CtdlCompressHeader); destLen = (uLongf) buffer_len; compressed_data = malloc(buffer_len); if (compress2((Bytef *) (compressed_data + sizeof(struct CtdlCompressHeader)), &destLen, (Bytef *) cdata, (uLongf) cdatalen, 1) != Z_OK) { - syslog(LOG_EMERG, "compress2() error\n"); - abort(); + syslog(LOG_EMERG, "db: compress2() error"); + cdb_abort(); } zheader.compressed_len = (size_t) destLen; memcpy(compressed_data, &zheader, sizeof(struct CtdlCompressHeader)); @@ -562,14 +532,14 @@ int cdb_store(int cdb, const void *ckey, int ckeylen, void *cdata, int cdatalen) &ddata, /* data */ 0); /* flags */ if (ret) { - syslog(LOG_EMERG, "cdb_store(%d): %s", cdb, db_strerror(ret)); - abort(); + syslog(LOG_EMERG, "db: cdb_store(%d): %s", cdb, db_strerror(ret)); + cdb_abort(); } if (compressing) free(compressed_data); return ret; - - } else { + } + else { bailIfCursor(TSD->cursors, "attempt to write during r/o cursor"); retry: @@ -584,8 +554,8 @@ int cdb_store(int cdb, const void *ckey, int ckeylen, void *cdata, int cdatalen) txabort(tid); goto retry; } else { - syslog(LOG_EMERG, "cdb_store(%d): %s", cdb, db_strerror(ret)); - abort(); + syslog(LOG_EMERG, "db: cdb_store(%d): %s", cdb, db_strerror(ret)); + cdb_abort(); } } else { txcommit(tid); @@ -595,6 +565,7 @@ int cdb_store(int cdb, const void *ckey, int ckeylen, void *cdata, int cdatalen) return ret; } } + return ret; } @@ -615,9 +586,9 @@ int cdb_delete(int cdb, void *key, int keylen) if (TSD->tid != NULL) { ret = dbp[cdb]->del(dbp[cdb], TSD->tid, &dkey, 0); if (ret) { - syslog(LOG_EMERG, "cdb_delete(%d): %s\n", cdb, db_strerror(ret)); + syslog(LOG_EMERG, "db: cdb_delete(%d): %s", cdb, db_strerror(ret)); if (ret != DB_NOTFOUND) { - abort(); + cdb_abort(); } } } else { @@ -632,9 +603,8 @@ int cdb_delete(int cdb, void *key, int keylen) txabort(tid); goto retry; } else { - syslog(LOG_EMERG, "cdb_delete(%d): %s\n", - cdb, db_strerror(ret)); - abort(); + syslog(LOG_EMERG, "db: cdb_delete(%d): %s", cdb, db_strerror(ret)); + cdb_abort(); } } else { txcommit(tid); @@ -654,8 +624,8 @@ static DBC *localcursor(int cdb) ret = TSD->cursors[cdb]->c_dup(TSD->cursors[cdb], &curs, DB_POSITION); if (ret) { - syslog(LOG_EMERG, "localcursor: %s\n", db_strerror(ret)); - abort(); + syslog(LOG_EMERG, "db: localcursor: %s", db_strerror(ret)); + cdb_abort(); } return curs; @@ -669,14 +639,13 @@ 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; - dkey.data = key; + dkey.data = (void *)key; if (TSD->tid != NULL) { memset(&dret, 0, sizeof(DBT)); @@ -699,8 +668,8 @@ struct cdbdata *cdb_fetch(int cdb, const void *key, int keylen) } if ((ret != 0) && (ret != DB_NOTFOUND)) { - syslog(LOG_EMERG, "cdb_fetch(%d): %s\n", cdb, db_strerror(ret)); - abort(); + syslog(LOG_EMERG, "db: cdb_fetch(%d): %s", cdb, db_strerror(ret)); + cdb_abort(); } if (ret != 0) @@ -708,14 +677,17 @@ struct cdbdata *cdb_fetch(int cdb, const void *key, int keylen) tempcdb = (struct cdbdata *) malloc(sizeof(struct cdbdata)); if (tempcdb == NULL) { - syslog(LOG_EMERG, "cdb_fetch: Cannot allocate memory for tempcdb\n"); - abort(); + syslog(LOG_EMERG, "db: cdb_fetch: Cannot allocate memory for tempcdb"); + 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); } @@ -754,9 +726,8 @@ void cdb_rewind(int cdb) int ret = 0; if (TSD->cursors[cdb] != NULL) { - syslog(LOG_EMERG, - "cdb_rewind: must close cursor on database %d before reopening.\n", cdb); - abort(); + syslog(LOG_EMERG, "db: cdb_rewind: must close cursor on database %d before reopening", cdb); + cdb_abort(); /* cclose(TSD->cursors[cdb]); */ } @@ -765,8 +736,8 @@ void cdb_rewind(int cdb) */ ret = dbp[cdb]->cursor(dbp[cdb], TSD->tid, &TSD->cursors[cdb], 0); if (ret) { - syslog(LOG_EMERG, "cdb_rewind: db_cursor: %s\n", db_strerror(ret)); - abort(); + syslog(LOG_EMERG, "db: cdb_rewind: db_cursor: %s", db_strerror(ret)); + cdb_abort(); } } @@ -790,8 +761,8 @@ struct cdbdata *cdb_next_item(int cdb) if (ret) { if (ret != DB_NOTFOUND) { - syslog(LOG_EMERG, "cdb_next_item(%d): %s\n", cdb, db_strerror(ret)); - abort(); + syslog(LOG_EMERG, "db: cdb_next_item(%d): %s", cdb, db_strerror(ret)); + cdb_abort(); } cdb_close_cursor(cdb); return NULL; /* presumably, end of file */ @@ -817,8 +788,8 @@ void cdb_begin_transaction(void) bailIfCursor(TSD->cursors, "can't begin transaction during r/o cursor"); if (TSD->tid != NULL) { - syslog(LOG_EMERG, "cdb_begin_transaction: ERROR: nested transaction\n"); - abort(); + syslog(LOG_EMERG, "db: cdb_begin_transaction: ERROR: nested transaction"); + cdb_abort(); } txbegin(&TSD->tid); @@ -830,18 +801,16 @@ void cdb_end_transaction(void) for (i = 0; i < MAXCDB; i++) if (TSD->cursors[i] != NULL) { - syslog(LOG_WARNING, - "cdb_end_transaction: WARNING: cursor %d still open at transaction end\n", - i); + syslog(LOG_WARNING, "db: cdb_end_transaction: WARNING: cursor %d still open at transaction end", i); cclose(TSD->cursors[i]); TSD->cursors[i] = NULL; } if (TSD->tid == NULL) { - syslog(LOG_EMERG, - "cdb_end_transaction: ERROR: txcommit(NULL) !!\n"); - abort(); - } else { + syslog(LOG_ERR, "db: cdb_end_transaction: ERROR: txcommit(NULL) !!"); + cdb_abort(); + } + else { txcommit(TSD->tid); } @@ -858,9 +827,10 @@ void cdb_trunc(int cdb) u_int32_t count; if (TSD->tid != NULL) { - syslog(LOG_EMERG, "cdb_trunc must not be called in a transaction."); - abort(); - } else { + syslog(LOG_EMERG, "db: cdb_trunc must not be called in a transaction."); + cdb_abort(); + } + else { bailIfCursor(TSD->cursors, "attempt to write during r/o cursor"); retry: @@ -874,9 +844,9 @@ void cdb_trunc(int cdb) /* txabort(tid); */ goto retry; } else { - syslog(LOG_EMERG, "cdb_truncate(%d): %s\n", cdb, db_strerror(ret)); + syslog(LOG_EMERG, "db: cdb_truncate(%d): %s", cdb, db_strerror(ret)); if (ret == ENOMEM) { - syslog(LOG_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."); + syslog(LOG_EMERG, "db: 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."); } exit(CTDLEXIT_DB); } @@ -885,3 +855,107 @@ void cdb_trunc(int cdb) } } } + + +/* + * compact (defragment) the database , possibly returning space back to the underlying filesystem + */ +void cdb_compact(void) +{ + int ret; + int i; + + syslog(LOG_DEBUG, "db: cdb_compact() started"); + for (i = 0; i < MAXCDB; i++) { + syslog(LOG_DEBUG, "db: compacting database %d", i); + ret = dbp[i]->compact(dbp[i], NULL, NULL, NULL, NULL, DB_FREE_SPACE, NULL); + if (ret) { + syslog(LOG_ERR, "db: compact: %s", db_strerror(ret)); + } + } + syslog(LOG_DEBUG, "db: cdb_compact() finished"); +} + + +// Has an item already been seen (is it in the CDB_USETABLE) ? +// Returns 0 if it hasn't, 1 if it has +// In either case, writes the item to the database for next time. +int CheckIfAlreadySeen(StrBuf *guid) +{ + int found = 0; + struct UseTable ut; + struct cdbdata *cdbut; + + syslog(LOG_DEBUG, "db: CheckIfAlreadySeen(%s)", ChrPtr(guid)); + cdbut = cdb_fetch(CDB_USETABLE, SKEY(guid)); + if (cdbut != NULL) { + found = 1; + cdb_free(cdbut); + } + + /* (Re)write the record, to update the timestamp. Zeroing it out makes it compress better. */ + memset(&ut, 0, sizeof(struct UseTable)); + memcpy(ut.ut_msgid, SKEY(guid)); + ut.ut_timestamp = time(NULL); + cdb_store(CDB_USETABLE, SKEY(guid), &ut, sizeof(struct UseTable)); + return(found); +} + + +void cmd_rsen(char *argbuf) { + char Token[SIZ]; + long TLen; + char Time[SIZ]; + + struct UseTable ut; + struct cdbdata *cdbut; + + if (CtdlAccessCheck(ac_aide)) return; + + TLen = extract_token(Token, argbuf, 1, '|', sizeof Token); + if (strncmp(argbuf, "GET", 3) == 0) { + cdbut = cdb_fetch(CDB_USETABLE, Token, TLen); + if (cdbut != NULL) { + memcpy(&ut, cdbut->ptr, + ((cdbut->len > sizeof(struct UseTable)) ? + sizeof(struct UseTable) : cdbut->len)); + + cprintf("%d %ld\n", CIT_OK, ut.ut_timestamp); + } + else { + cprintf("%d not found\n", ERROR + NOT_HERE); + } + + } + else if (strncmp(argbuf, "SET", 3) == 0) { + memcpy(ut.ut_msgid, Token, TLen); + extract_token(Time, argbuf, 2, '|', sizeof Time); + ut.ut_timestamp = atol(Time); + cdb_store(CDB_USETABLE, + Token, TLen, + &ut, sizeof(struct UseTable) ); + cprintf("%d token updated\n", CIT_OK); + } + else if (strncmp(argbuf, "DEL", 3) == 0) { + if (cdb_delete(CDB_USETABLE, Token, TLen)) + cprintf("%d not found\n", ERROR + NOT_HERE); + else + cprintf("%d deleted.\n", CIT_OK); + + } + else { + cprintf("%d Usage: [GET|SET|DEL]|Token|timestamp\n", ERROR); + } + +} + +CTDL_MODULE_INIT(database) +{ + if (!threading) + { + CtdlRegisterProtoHook(cmd_rsen, "RSEN", "manipulate Aggregators seen database"); + } + + /* return our module id for the log */ + return "database"; +}