diff options
Diffstat (limited to 'src/backend/utils/init/postinit.c')
| -rw-r--r-- | src/backend/utils/init/postinit.c | 115 |
1 files changed, 57 insertions, 58 deletions
diff --git a/src/backend/utils/init/postinit.c b/src/backend/utils/init/postinit.c index 73fedbdd477..3c763e39292 100644 --- a/src/backend/utils/init/postinit.c +++ b/src/backend/utils/init/postinit.c @@ -8,7 +8,7 @@ * * * IDENTIFICATION - * $PostgreSQL: pgsql/src/backend/utils/init/postinit.c,v 1.157 2005/08/11 21:11:46 tgl Exp $ + * $PostgreSQL: pgsql/src/backend/utils/init/postinit.c,v 1.158 2005/10/15 02:49:33 momjian Exp $ * * *------------------------------------------------------------------------- @@ -112,7 +112,7 @@ FindMyDatabase(const char *name, Oid *db_id, Oid *db_tablespace) * * Since FindMyDatabase cannot lock pg_database, the information it read * could be stale; for example we might have attached to a database that's in - * process of being destroyed by dropdb(). This routine is called after + * process of being destroyed by dropdb(). This routine is called after * we have all the locking and other infrastructure running --- now we can * check that we are really attached to a valid database. * @@ -134,14 +134,14 @@ static void ReverifyMyDatabase(const char *name) { Relation pgdbrel; - SysScanDesc pgdbscan; + SysScanDesc pgdbscan; ScanKeyData key; HeapTuple tup; Form_pg_database dbform; /* - * Because we grab RowShareLock here, we can be sure that dropdb() - * is not running in parallel with us (any more). + * Because we grab RowShareLock here, we can be sure that dropdb() is not + * running in parallel with us (any more). */ pgdbrel = heap_open(DatabaseRelationId, RowShareLock); @@ -161,17 +161,17 @@ ReverifyMyDatabase(const char *name) heap_close(pgdbrel, RowShareLock); /* - * The only real problem I could have created is to load dirty - * buffers for the dead database into shared buffer cache; if I - * did, some other backend will eventually try to write them and - * die in mdblindwrt. Flush any such pages to forestall trouble. + * The only real problem I could have created is to load dirty buffers + * for the dead database into shared buffer cache; if I did, some + * other backend will eventually try to write them and die in + * mdblindwrt. Flush any such pages to forestall trouble. */ DropBuffers(MyDatabaseId); /* Now I can commit hara-kiri with a clear conscience... */ ereport(FATAL, (errcode(ERRCODE_UNDEFINED_DATABASE), - errmsg("database \"%s\", OID %u, has disappeared from pg_database", - name, MyDatabaseId))); + errmsg("database \"%s\", OID %u, has disappeared from pg_database", + name, MyDatabaseId))); } dbform = (Form_pg_database) GETSTRUCT(tup); @@ -191,17 +191,18 @@ ReverifyMyDatabase(const char *name) if (!dbform->datallowconn) ereport(FATAL, (errcode(ERRCODE_OBJECT_NOT_IN_PREREQUISITE_STATE), - errmsg("database \"%s\" is not currently accepting connections", - name))); + errmsg("database \"%s\" is not currently accepting connections", + name))); + /* * Check connection limit for this database. * * There is a race condition here --- we create our PGPROC before - * checking for other PGPROCs. If two backends did this at about the + * checking for other PGPROCs. If two backends did this at about the * same time, they might both think they were over the limit, while * ideally one should succeed and one fail. Getting that to work - * exactly seems more trouble than it is worth, however; instead - * we just document that the connection limit is approximate. + * exactly seems more trouble than it is worth, however; instead we + * just document that the connection limit is approximate. */ if (dbform->datconnlimit >= 0 && !superuser() && @@ -213,8 +214,8 @@ ReverifyMyDatabase(const char *name) } /* - * OK, we're golden. Next to-do item is to save the encoding - * info out of the pg_database tuple. + * OK, we're golden. Next to-do item is to save the encoding info out of + * the pg_database tuple. */ SetDatabaseEncoding(dbform->encoding); /* Record it as a GUC internal option, too */ @@ -264,8 +265,8 @@ InitCommunication(void) if (!IsUnderPostmaster) /* postmaster already did this */ { /* - * We're running a postgres bootstrap process or a standalone - * backend. Create private "shmem" and semaphores. + * We're running a postgres bootstrap process or a standalone backend. + * Create private "shmem" and semaphores. */ CreateSharedMemoryAndSemaphores(true, 0); } @@ -309,7 +310,7 @@ BaseInit(void) * The return value indicates whether the userID is a superuser. (That * can only be tested inside a transaction, so we want to do it during * the startup transaction rather than doing a separate one in postgres.c.) - * + * * Note: * Be very careful with the order of calls in the InitPostgres function. * -------------------------------- @@ -324,8 +325,8 @@ InitPostgres(const char *dbname, const char *username) /* * Set up the global variables holding database id and path. * - * We take a shortcut in the bootstrap case, otherwise we have to look up - * the db name in pg_database. + * We take a shortcut in the bootstrap case, otherwise we have to look up the + * db name in pg_database. */ if (bootstrap) { @@ -338,13 +339,12 @@ InitPostgres(const char *dbname, const char *username) char *fullpath; /* - * Formerly we validated DataDir here, but now that's done - * earlier. + * Formerly we validated DataDir here, but now that's done earlier. */ /* - * Find oid and tablespace of the database we're about to open. - * Since we're not yet up and running we have to use the hackish + * Find oid and tablespace of the database we're about to open. Since + * we're not yet up and running we have to use the hackish * FindMyDatabase. */ if (!FindMyDatabase(dbname, &MyDatabaseId, &MyDatabaseTableSpace)) @@ -364,8 +364,8 @@ InitPostgres(const char *dbname, const char *username) (errcode(ERRCODE_UNDEFINED_DATABASE), errmsg("database \"%s\" does not exist", dbname), - errdetail("The database subdirectory \"%s\" is missing.", - fullpath))); + errdetail("The database subdirectory \"%s\" is missing.", + fullpath))); else ereport(FATAL, (errcode_for_file_access(), @@ -383,17 +383,17 @@ InitPostgres(const char *dbname, const char *username) */ /* - * Set up my per-backend PGPROC struct in shared memory. (We need - * to know MyDatabaseId before we can do this, since it's entered into - * the PGPROC struct.) + * Set up my per-backend PGPROC struct in shared memory. (We need to + * know MyDatabaseId before we can do this, since it's entered into the + * PGPROC struct.) */ InitProcess(); /* * Initialize my entry in the shared-invalidation manager's array of - * per-backend data. (Formerly this came before InitProcess, but now - * it must happen after, because it uses MyProc.) Once I have done - * this, I am visible to other backends! + * per-backend data. (Formerly this came before InitProcess, but now it + * must happen after, because it uses MyProc.) Once I have done this, I + * am visible to other backends! * * Sets up MyBackendId, a unique backend identifier. */ @@ -410,22 +410,22 @@ InitPostgres(const char *dbname, const char *username) InitBufferPoolBackend(); /* - * Initialize local process's access to XLOG. In bootstrap case we - * may skip this since StartupXLOG() was run instead. + * Initialize local process's access to XLOG. In bootstrap case we may + * skip this since StartupXLOG() was run instead. */ if (!bootstrap) InitXLOGAccess(); /* - * Initialize the relation descriptor cache. This must create at - * least the minimum set of "nailed-in" cache entries. No catalog - * access happens here. + * Initialize the relation descriptor cache. This must create at least + * the minimum set of "nailed-in" cache entries. No catalog access + * happens here. */ RelationCacheInitialize(); /* - * Initialize all the system catalog caches. Note that no catalog - * access happens here; we only set up the cache structure. + * Initialize all the system catalog caches. Note that no catalog access + * happens here; we only set up the cache structure. */ InitCatalogCache(); @@ -433,14 +433,13 @@ InitPostgres(const char *dbname, const char *username) EnablePortalManager(); /* - * Set up process-exit callback to do pre-shutdown cleanup. This - * has to be after we've initialized all the low-level modules - * like the buffer manager, because during shutdown this has to - * run before the low-level modules start to close down. On the - * other hand, we want it in place before we begin our first - * transaction --- if we fail during the initialization transaction, - * as is entirely possible, we need the AbortTransaction call to - * clean up. + * Set up process-exit callback to do pre-shutdown cleanup. This has to + * be after we've initialized all the low-level modules like the buffer + * manager, because during shutdown this has to run before the low-level + * modules start to close down. On the other hand, we want it in place + * before we begin our first transaction --- if we fail during the + * initialization transaction, as is entirely possible, we need the + * AbortTransaction call to clean up. */ on_shmem_exit(ShutdownPostgres, 0); @@ -479,18 +478,18 @@ InitPostgres(const char *dbname, const char *username) } /* - * Unless we are bootstrapping, double-check that InitMyDatabaseInfo() - * got a correct result. We can't do this until all the - * database-access infrastructure is up. (Also, it wants to know if - * the user is a superuser, so the above stuff has to happen first.) + * Unless we are bootstrapping, double-check that InitMyDatabaseInfo() got + * a correct result. We can't do this until all the database-access + * infrastructure is up. (Also, it wants to know if the user is a + * superuser, so the above stuff has to happen first.) */ if (!bootstrap) ReverifyMyDatabase(dbname); /* * Final phase of relation cache startup: write a new cache file if - * necessary. This is done after ReverifyMyDatabase to avoid writing - * a cache file into a dead database. + * necessary. This is done after ReverifyMyDatabase to avoid writing a + * cache file into a dead database. */ RelationCacheInitializePhase3(); @@ -555,8 +554,8 @@ ShutdownPostgres(int code, Datum arg) AbortOutOfAnyTransaction(); /* - * User locks are not released by transaction end, so be sure to - * release them explicitly. + * User locks are not released by transaction end, so be sure to release + * them explicitly. */ #ifdef USER_LOCKS LockReleaseAll(USER_LOCKMETHOD, true); |