* miscinit.c
* miscellaneous initialization support stuff
*
- * Portions Copyright (c) 1996-2005, PostgreSQL Global Development Group
+ * Portions Copyright (c) 1996-2012, PostgreSQL Global Development Group
* Portions Copyright (c) 1994, Regents of the University of California
*
*
* IDENTIFICATION
- * $PostgreSQL: pgsql/src/backend/utils/init/miscinit.c,v 1.153 2006/01/05 10:07:46 petere Exp $
+ * src/backend/utils/init/miscinit.c
*
*-------------------------------------------------------------------------
*/
#endif
#include "catalog/pg_authid.h"
-#include "libpq/libpq-be.h"
+#include "mb/pg_wchar.h"
#include "miscadmin.h"
#include "postmaster/autovacuum.h"
+#include "postmaster/postmaster.h"
#include "storage/fd.h"
#include "storage/ipc.h"
#include "storage/pg_shmem.h"
#include "storage/procarray.h"
#include "utils/builtins.h"
#include "utils/guc.h"
-#include "utils/lsyscache.h"
+#include "utils/memutils.h"
#include "utils/syscache.h"
* ----------------------------------------------------------------
*/
-bool IgnoreSystemIndexes = false;
+bool IgnoreSystemIndexes = false;
-/* ----------------------------------------------------------------
- * system index reindexing support
- *
- * When we are busy reindexing a system index, this code provides support
- * for preventing catalog lookups from using that index.
- * ----------------------------------------------------------------
- */
-
-static Oid currentlyReindexedHeap = InvalidOid;
-static Oid currentlyReindexedIndex = InvalidOid;
-
-/*
- * ReindexIsProcessingHeap
- * True if heap specified by OID is currently being reindexed.
- */
-bool
-ReindexIsProcessingHeap(Oid heapOid)
-{
- return heapOid == currentlyReindexedHeap;
-}
-
-/*
- * ReindexIsProcessingIndex
- * True if index specified by OID is currently being reindexed.
- */
-bool
-ReindexIsProcessingIndex(Oid indexOid)
-{
- return indexOid == currentlyReindexedIndex;
-}
-
-/*
- * SetReindexProcessing
- * Set flag that specified heap/index are being reindexed.
- */
-void
-SetReindexProcessing(Oid heapOid, Oid indexOid)
-{
- Assert(OidIsValid(heapOid) && OidIsValid(indexOid));
- /* Reindexing is not re-entrant. */
- if (OidIsValid(currentlyReindexedIndex))
- elog(ERROR, "cannot reindex while reindexing");
- currentlyReindexedHeap = heapOid;
- currentlyReindexedIndex = indexOid;
-}
-
-/*
- * ResetReindexProcessing
- * Unset reindexing status.
- */
-void
-ResetReindexProcessing(void)
-{
- currentlyReindexedHeap = InvalidOid;
- currentlyReindexedIndex = InvalidOid;
-}
/* ----------------------------------------------------------------
* database path / name support stuff
void
SetDatabasePath(const char *path)
{
- if (DatabasePath)
- {
- free(DatabasePath);
- DatabasePath = NULL;
- }
- /* use strdup since this is done before memory contexts are set up */
- if (path)
- {
- DatabasePath = strdup(path);
- AssertState(DatabasePath);
- }
+ /* This should happen only once per process */
+ Assert(!DatabasePath);
+ DatabasePath = MemoryContextStrdup(TopMemoryContext, path);
}
/*
* OuterUserId is the current user ID in effect at the "outer level" (outside
* any transaction or function). This is initially the same as SessionUserId,
* but can be changed by SET ROLE to any role that SessionUserId is a
- * member of. We store this mainly so that AtAbort_UserId knows what to
- * reset CurrentUserId to.
+ * member of. (XXX rename to something like CurrentRoleId?)
*
* CurrentUserId is the current effective user ID; this is the one to use
* for all normal permissions-checking purposes. At outer level this will
* be the same as OuterUserId, but it changes during calls to SECURITY
* DEFINER functions, as well as locally in some specialized commands.
+ *
+ * SecurityRestrictionContext holds flags indicating reason(s) for changing
+ * CurrentUserId. In some cases we need to lock down operations that are
+ * not directly controlled by privilege settings, and this provides a
+ * convenient way to do it.
* ----------------------------------------------------------------
*/
static Oid AuthenticatedUserId = InvalidOid;
static bool AuthenticatedUserIsSuperuser = false;
static bool SessionUserIsSuperuser = false;
+static int SecurityRestrictionContext = 0;
+
/* We also remember if a SET ROLE is currently active */
static bool SetRoleIsActive = false;
/*
- * GetUserId/SetUserId - get/set the current effective user ID.
+ * GetUserId - get the current effective user ID.
+ *
+ * Note: there's no SetUserId() anymore; use SetUserIdAndSecContext().
*/
Oid
GetUserId(void)
}
-void
-SetUserId(Oid userid)
-{
- AssertArg(OidIsValid(userid));
- CurrentUserId = userid;
-}
-
-
/*
* GetOuterUserId/SetOuterUserId - get/set the outer-level user ID.
*/
static void
SetOuterUserId(Oid userid)
{
+ AssertState(SecurityRestrictionContext == 0);
AssertArg(OidIsValid(userid));
OuterUserId = userid;
static void
SetSessionUserId(Oid userid, bool is_superuser)
{
+ AssertState(SecurityRestrictionContext == 0);
AssertArg(OidIsValid(userid));
SessionUserId = userid;
SessionUserIsSuperuser = is_superuser;
}
+/*
+ * GetUserIdAndSecContext/SetUserIdAndSecContext - get/set the current user ID
+ * and the SecurityRestrictionContext flags.
+ *
+ * Currently there are two valid bits in SecurityRestrictionContext:
+ *
+ * SECURITY_LOCAL_USERID_CHANGE indicates that we are inside an operation
+ * that is temporarily changing CurrentUserId via these functions. This is
+ * needed to indicate that the actual value of CurrentUserId is not in sync
+ * with guc.c's internal state, so SET ROLE has to be disallowed.
+ *
+ * SECURITY_RESTRICTED_OPERATION indicates that we are inside an operation
+ * that does not wish to trust called user-defined functions at all. This
+ * bit prevents not only SET ROLE, but various other changes of session state
+ * that normally is unprotected but might possibly be used to subvert the
+ * calling session later. An example is replacing an existing prepared
+ * statement with new code, which will then be executed with the outer
+ * session's permissions when the prepared statement is next used. Since
+ * these restrictions are fairly draconian, we apply them only in contexts
+ * where the called functions are really supposed to be side-effect-free
+ * anyway, such as VACUUM/ANALYZE/REINDEX.
+ *
+ * Unlike GetUserId, GetUserIdAndSecContext does *not* Assert that the current
+ * value of CurrentUserId is valid; nor does SetUserIdAndSecContext require
+ * the new value to be valid. In fact, these routines had better not
+ * ever throw any kind of error. This is because they are used by
+ * StartTransaction and AbortTransaction to save/restore the settings,
+ * and during the first transaction within a backend, the value to be saved
+ * and perhaps restored is indeed invalid. We have to be able to get
+ * through AbortTransaction without asserting in case InitPostgres fails.
+ */
+void
+GetUserIdAndSecContext(Oid *userid, int *sec_context)
+{
+ *userid = CurrentUserId;
+ *sec_context = SecurityRestrictionContext;
+}
+
+void
+SetUserIdAndSecContext(Oid userid, int sec_context)
+{
+ CurrentUserId = userid;
+ SecurityRestrictionContext = sec_context;
+}
+
+
+/*
+ * InLocalUserIdChange - are we inside a local change of CurrentUserId?
+ */
+bool
+InLocalUserIdChange(void)
+{
+ return (SecurityRestrictionContext & SECURITY_LOCAL_USERID_CHANGE) != 0;
+}
+
+/*
+ * InSecurityRestrictedOperation - are we inside a security-restricted command?
+ */
+bool
+InSecurityRestrictedOperation(void)
+{
+ return (SecurityRestrictionContext & SECURITY_RESTRICTED_OPERATION) != 0;
+}
+
+
+/*
+ * These are obsolete versions of Get/SetUserIdAndSecContext that are
+ * only provided for bug-compatibility with some rather dubious code in
+ * pljava. We allow the userid to be set, but only when not inside a
+ * security restriction context.
+ */
+void
+GetUserIdAndContext(Oid *userid, bool *sec_def_context)
+{
+ *userid = CurrentUserId;
+ *sec_def_context = InLocalUserIdChange();
+}
+
+void
+SetUserIdAndContext(Oid userid, bool sec_def_context)
+{
+ /* We throw the same error SET ROLE would. */
+ if (InSecurityRestrictedOperation())
+ ereport(ERROR,
+ (errcode(ERRCODE_INSUFFICIENT_PRIVILEGE),
+ errmsg("cannot set parameter \"%s\" within security-restricted operation",
+ "role")));
+ CurrentUserId = userid;
+ if (sec_def_context)
+ SecurityRestrictionContext |= SECURITY_LOCAL_USERID_CHANGE;
+ else
+ SecurityRestrictionContext &= ~SECURITY_LOCAL_USERID_CHANGE;
+}
+
+
+/*
+ * Check if the authenticated user is a replication role
+ */
+bool
+is_authenticated_user_replication_role(void)
+{
+ bool result = false;
+ HeapTuple utup;
+
+ utup = SearchSysCache1(AUTHOID, ObjectIdGetDatum(AuthenticatedUserId));
+ if (HeapTupleIsValid(utup))
+ {
+ result = ((Form_pg_authid) GETSTRUCT(utup))->rolreplication;
+ ReleaseSysCache(utup);
+ }
+ return result;
+}
+
/*
* Initialize user identity during normal backend startup
*/
{
HeapTuple roleTup;
Form_pg_authid rform;
- Datum datum;
- bool isnull;
Oid roleid;
/*
/* call only once */
AssertState(!OidIsValid(AuthenticatedUserId));
- roleTup = SearchSysCache(AUTHNAME,
- PointerGetDatum(rolename),
- 0, 0, 0);
+ roleTup = SearchSysCache1(AUTHNAME, PointerGetDatum(rolename));
if (!HeapTupleIsValid(roleTup))
ereport(FATAL,
(errcode(ERRCODE_INVALID_AUTHORIZATION_SPECIFICATION),
* These next checks are not enforced when in standalone mode, so that
* there is a way to recover from sillinesses like "UPDATE pg_authid SET
* rolcanlogin = false;".
- *
- * We do not enforce them for the autovacuum process either.
*/
- if (IsUnderPostmaster && !IsAutoVacuumProcess())
+ if (IsUnderPostmaster)
{
/*
* Is role allowed to login at all?
AuthenticatedUserIsSuperuser ? "on" : "off",
PGC_INTERNAL, PGC_S_OVERRIDE);
- /*
- * Set up user-specific configuration variables. This is a good place to
- * do it so we don't have to read pg_authid twice during session startup.
- */
- datum = SysCacheGetAttr(AUTHNAME, roleTup,
- Anum_pg_authid_rolconfig, &isnull);
- if (!isnull)
- {
- ArrayType *a = DatumGetArrayTypeP(datum);
-
- ProcessGUCArray(a, PGC_S_USER);
- }
-
ReleaseSysCache(roleTup);
}
void
InitializeSessionUserIdStandalone(void)
{
- /* This function should only be called in a single-user backend. */
- AssertState(!IsUnderPostmaster || IsAutoVacuumProcess());
+ /*
+ * This function should only be called in single-user mode and in
+ * autovacuum workers.
+ */
+ AssertState(!IsUnderPostmaster || IsAutoVacuumWorkerProcess());
/* call only once */
AssertState(!OidIsValid(AuthenticatedUserId));
}
-/*
- * Reset effective userid during AbortTransaction
- *
- * This is essentially SetUserId(GetOuterUserId()), but without the Asserts.
- * The reason is that if a backend's InitPostgres transaction fails (eg,
- * because an invalid user name was given), we have to be able to get through
- * AbortTransaction without asserting.
- */
-void
-AtAbort_UserId(void)
-{
- CurrentUserId = OuterUserId;
-}
-
-
/*
* Change session auth ID while running
*
HeapTuple tuple;
char *result;
- tuple = SearchSysCache(AUTHOID,
- ObjectIdGetDatum(roleid),
- 0, 0, 0);
+ tuple = SearchSysCache1(AUTHOID, ObjectIdGetDatum(roleid));
if (!HeapTupleIsValid(tuple))
ereport(ERROR,
(errcode(ERRCODE_UNDEFINED_OBJECT),
*
* These routines are used to create both a data-directory lockfile
* ($DATADIR/postmaster.pid) and a Unix-socket-file lockfile ($SOCKFILE.lock).
- * Both kinds of files contain the same info:
- *
- * Owning process' PID
- * Data directory path
- *
- * By convention, the owning process' PID is negated if it is a standalone
- * backend rather than a postmaster. This is just for informational purposes.
- * The path is also just for informational purposes (so that a socket lockfile
- * can be more easily traced to the associated postmaster).
- *
- * A data-directory lockfile can optionally contain a third line, containing
- * the key and ID for the shared memory block used by this postmaster.
+ * Both kinds of files contain the same info initially, although we can add
+ * more information to a data-directory lockfile after it's created, using
+ * AddToDataDirLockFile(). See miscadmin.h for documentation of the contents
+ * of these lockfiles.
*
* On successful lockfile creation, a proc_exit callback to remove the
* lockfile is automatically created.
bool isDDLock, const char *refName)
{
int fd;
- char buffer[MAXPGPATH + 100];
+ char buffer[MAXPGPATH * 2 + 256];
int ntries;
int len;
int encoded_pid;
pid_t other_pid;
- pid_t my_pid = getpid();
+ pid_t my_pid,
+ my_p_pid,
+ my_gp_pid;
+ const char *envvar;
+
+ /*
+ * If the PID in the lockfile is our own PID or our parent's or
+ * grandparent's PID, then the file must be stale (probably left over from
+ * a previous system boot cycle). We need to check this because of the
+ * likelihood that a reboot will assign exactly the same PID as we had in
+ * the previous reboot, or one that's only one or two counts larger and
+ * hence the lockfile's PID now refers to an ancestor shell process. We
+ * allow pg_ctl to pass down its parent shell PID (our grandparent PID)
+ * via the environment variable PG_GRANDPARENT_PID; this is so that
+ * launching the postmaster via pg_ctl can be just as reliable as
+ * launching it directly. There is no provision for detecting
+ * further-removed ancestor processes, but if the init script is written
+ * carefully then all but the immediate parent shell will be root-owned
+ * processes and so the kill test will fail with EPERM. Note that we
+ * cannot get a false negative this way, because an existing postmaster
+ * would surely never launch a competing postmaster or pg_ctl process
+ * directly.
+ */
+ my_pid = getpid();
+
+#ifndef WIN32
+ my_p_pid = getppid();
+#else
+
+ /*
+ * Windows hasn't got getppid(), but doesn't need it since it's not using
+ * real kill() either...
+ */
+ my_p_pid = 0;
+#endif
+
+ envvar = getenv("PG_GRANDPARENT_PID");
+ if (envvar)
+ my_gp_pid = atoi(envvar);
+ else
+ my_gp_pid = 0;
/*
* We need a loop here because of race conditions. But don't loop forever
/*
* Check to see if the other process still exists
*
- * If the PID in the lockfile is our own PID or our parent's PID, then
- * the file must be stale (probably left over from a previous system
- * boot cycle). We need this test because of the likelihood that a
- * reboot will assign exactly the same PID as we had in the previous
- * reboot. Also, if there is just one more process launch in this
- * reboot than in the previous one, the lockfile might mention our
- * parent's PID. We can reject that since we'd never be launched
- * directly by a competing postmaster. We can't detect grandparent
- * processes unfortunately, but if the init script is written
- * carefully then all but the immediate parent shell will be
- * root-owned processes and so the kill test will fail with EPERM.
+ * Per discussion above, my_pid, my_p_pid, and my_gp_pid can be
+ * ignored as false matches.
+ *
+ * Normally kill() will fail with ESRCH if the given PID doesn't
+ * exist.
*
* We can treat the EPERM-error case as okay because that error
* implies that the existing process has a different userid than we
* Unix socket file belonging to an instance of Postgres being run by
* someone else, at least on machines where /tmp hasn't got a
* stickybit.)
- *
- * Windows hasn't got getppid(), but doesn't need it since it's not
- * using real kill() either...
- *
- * Normally kill() will fail with ESRCH if the given PID doesn't
- * exist.
*/
- if (other_pid != my_pid
-#ifndef WIN32
- && other_pid != getppid()
-#endif
- )
+ if (other_pid != my_pid && other_pid != my_p_pid &&
+ other_pid != my_gp_pid)
{
if (kill(other_pid, 0) == 0 ||
(errno != ESRCH && errno != EPERM))
* admin) but has left orphan backends behind. Check for this by
* looking to see if there is an associated shmem segment that is
* still in use.
+ *
+ * Note: because postmaster.pid is written in multiple steps, we might
+ * not find the shmem ID values in it; we can't treat that as an
+ * error.
*/
if (isDDLock)
{
- char *ptr;
+ char *ptr = buffer;
unsigned long id1,
id2;
+ int lineno;
- ptr = strchr(buffer, '\n');
- if (ptr != NULL &&
- (ptr = strchr(ptr + 1, '\n')) != NULL)
+ for (lineno = 1; lineno < LOCK_FILE_LINE_SHMEM_KEY; lineno++)
{
+ if ((ptr = strchr(ptr, '\n')) == NULL)
+ break;
ptr++;
- if (sscanf(ptr, "%lu %lu", &id1, &id2) == 2)
- {
- if (PGSharedMemoryIsInUse(id1, id2))
- ereport(FATAL,
- (errcode(ERRCODE_LOCK_FILE_EXISTS),
- errmsg("pre-existing shared memory block "
- "(key %lu, ID %lu) is still in use",
- id1, id2),
- errhint("If you're sure there are no old "
- "server processes still running, remove "
- "the shared memory block with "
- "the command \"ipcclean\", \"ipcrm\", "
- "or just delete the file \"%s\".",
- filename)));
- }
+ }
+
+ if (ptr != NULL &&
+ sscanf(ptr, "%lu %lu", &id1, &id2) == 2)
+ {
+ if (PGSharedMemoryIsInUse(id1, id2))
+ ereport(FATAL,
+ (errcode(ERRCODE_LOCK_FILE_EXISTS),
+ errmsg("pre-existing shared memory block "
+ "(key %lu, ID %lu) is still in use",
+ id1, id2),
+ errhint("If you're sure there are no old "
+ "server processes still running, remove "
+ "the shared memory block "
+ "or just delete the file \"%s\".",
+ filename)));
}
}
}
/*
- * Successfully created the file, now fill it.
+ * Successfully created the file, now fill it. See comment in miscadmin.h
+ * about the contents. Note that we write the same info into both datadir
+ * and socket lockfiles; although more stuff may get added to the datadir
+ * lockfile later.
*/
- snprintf(buffer, sizeof(buffer), "%d\n%s\n",
+ snprintf(buffer, sizeof(buffer), "%d\n%s\n%ld\n%d\n%s\n",
amPostmaster ? (int) my_pid : -((int) my_pid),
- DataDir);
+ DataDir,
+ (long) MyStartTime,
+ PostPortNumber,
+#ifdef HAVE_UNIX_SOCKETS
+ (*UnixSocketDir != '\0') ? UnixSocketDir : DEFAULT_PGSOCKET_DIR
+#else
+ ""
+#endif
+ );
+
errno = 0;
if (write(fd, buffer, strlen(buffer)) != strlen(buffer))
{
(errcode_for_file_access(),
errmsg("could not write lock file \"%s\": %m", filename)));
}
- if (close(fd))
+ if (pg_fsync(fd) != 0)
+ {
+ int save_errno = errno;
+
+ close(fd);
+ unlink(filename);
+ errno = save_errno;
+ ereport(FATAL,
+ (errcode_for_file_access(),
+ errmsg("could not write lock file \"%s\": %m", filename)));
+ }
+ if (close(fd) != 0)
{
int save_errno = errno;
}
}
+
/*
- * Append information about a shared memory segment to the data directory
- * lock file.
+ * Add (or replace) a line in the data directory lock file.
+ * The given string should not include a trailing newline.
*
- * This may be called multiple times in the life of a postmaster, if we
- * delete and recreate shmem due to backend crash. Therefore, be prepared
- * to overwrite existing information. (As of 7.1, a postmaster only creates
- * one shm seg at a time; but for the purposes here, if we did have more than
- * one then any one of them would do anyway.)
+ * Caution: this erases all following lines. In current usage that is OK
+ * because lines are added in order. We could improve it if needed.
*/
void
-RecordSharedMemoryInLockFile(unsigned long id1, unsigned long id2)
+AddToDataDirLockFile(int target_line, const char *str)
{
int fd;
int len;
+ int lineno;
char *ptr;
char buffer[BLCKSZ];
DIRECTORY_LOCK_FILE)));
return;
}
- len = read(fd, buffer, sizeof(buffer) - 100);
+ len = read(fd, buffer, sizeof(buffer) - 1);
if (len < 0)
{
ereport(LOG,
buffer[len] = '\0';
/*
- * Skip over first two lines (PID and path).
+ * Skip over lines we are not supposed to rewrite.
*/
- ptr = strchr(buffer, '\n');
- if (ptr == NULL ||
- (ptr = strchr(ptr + 1, '\n')) == NULL)
+ ptr = buffer;
+ for (lineno = 1; lineno < target_line; lineno++)
{
- elog(LOG, "bogus data in \"%s\"", DIRECTORY_LOCK_FILE);
- close(fd);
- return;
+ if ((ptr = strchr(ptr, '\n')) == NULL)
+ {
+ elog(LOG, "bogus data in \"%s\"", DIRECTORY_LOCK_FILE);
+ close(fd);
+ return;
+ }
+ ptr++;
}
- ptr++;
/*
- * Append key information. Format to try to keep it the same length
- * always (trailing junk won't hurt, but might confuse humans).
+ * Write or rewrite the target line.
*/
- sprintf(ptr, "%9lu %9lu\n", id1, id2);
+ snprintf(ptr, buffer + sizeof(buffer) - ptr, "%s\n", str);
/*
* And rewrite the data. Since we write in a single kernel call, this
close(fd);
return;
}
- if (close(fd))
+ if (pg_fsync(fd) != 0)
+ {
+ ereport(LOG,
+ (errcode_for_file_access(),
+ errmsg("could not write to file \"%s\": %m",
+ DIRECTORY_LOCK_FILE)));
+ }
+ if (close(fd) != 0)
{
ereport(LOG,
(errcode_for_file_access(),
path),
errdetail("File \"%s\" does not contain valid data.",
full_path),
- errhint("You may need to initdb.")));
+ errhint("You might need to initdb.")));
FreeFile(file);
*-------------------------------------------------------------------------
*/
-typedef void (*func_ptr) ();
+/*
+ * GUC variables: lists of library names to be preloaded at postmaster
+ * start and at backend start
+ */
+char *shared_preload_libraries_string = NULL;
+char *local_preload_libraries_string = NULL;
+
+/* Flag telling that we are loading shared_preload_libraries */
+bool process_shared_preload_libraries_in_progress = false;
/*
- * process any libraries that should be preloaded and
- * optionally pre-initialized
+ * load the shared libraries listed in 'libraries'
+ *
+ * 'gucname': name of GUC variable, for error reports
+ * 'restricted': if true, force libraries to be in $libdir/plugins/
*/
-void
-process_preload_libraries(char *preload_libraries_string)
+static void
+load_libraries(const char *libraries, const char *gucname, bool restricted)
{
char *rawstring;
List *elemlist;
+ int elevel;
ListCell *l;
- if (preload_libraries_string == NULL)
- return;
+ if (libraries == NULL || libraries[0] == '\0')
+ return; /* nothing to do */
/* Need a modifiable copy of string */
- rawstring = pstrdup(preload_libraries_string);
+ rawstring = pstrdup(libraries);
/* Parse string into list of identifiers */
if (!SplitIdentifierString(rawstring, ',', &elemlist))
list_free(elemlist);
ereport(LOG,
(errcode(ERRCODE_SYNTAX_ERROR),
- errmsg("invalid list syntax for parameter \"preload_libraries\"")));
+ errmsg("invalid list syntax in parameter \"%s\"",
+ gucname)));
return;
}
+ /*
+ * Choose notice level: avoid repeat messages when re-loading a library
+ * that was preloaded into the postmaster. (Only possible in EXEC_BACKEND
+ * configurations)
+ */
+#ifdef EXEC_BACKEND
+ if (IsUnderPostmaster && process_shared_preload_libraries_in_progress)
+ elevel = DEBUG2;
+ else
+#endif
+ elevel = LOG;
+
foreach(l, elemlist)
{
char *tok = (char *) lfirst(l);
- char *sep = strstr(tok, ":");
- char *filename = NULL;
- char *funcname = NULL;
- func_ptr initfunc;
-
- if (sep)
- {
- /*
- * a colon separator implies there is an initialization function
- * that we need to run in addition to loading the library
- */
- size_t filename_len = sep - tok;
- size_t funcname_len = strlen(tok) - filename_len - 1;
-
- filename = (char *) palloc(filename_len + 1);
- memcpy(filename, tok, filename_len);
- filename[filename_len] = '\0';
-
- funcname = (char *) palloc(funcname_len + 1);
- strcpy(funcname, sep + 1);
- }
- else
- {
- /*
- * no separator -- just load the library
- */
- filename = pstrdup(tok);
- funcname = NULL;
- }
+ char *filename;
+ filename = pstrdup(tok);
canonicalize_path(filename);
- initfunc = (func_ptr) load_external_function(filename, funcname,
- true, NULL);
- if (initfunc)
- (*initfunc) ();
-
- if (funcname)
- ereport(LOG,
- (errmsg("preloaded library \"%s\" with initialization function \"%s\"",
- filename, funcname)));
- else
- ereport(LOG,
- (errmsg("preloaded library \"%s\"",
- filename)));
+ /* If restricting, insert $libdir/plugins if not mentioned already */
+ if (restricted && first_dir_separator(filename) == NULL)
+ {
+ char *expanded;
+ expanded = palloc(strlen("$libdir/plugins/") + strlen(filename) + 1);
+ strcpy(expanded, "$libdir/plugins/");
+ strcat(expanded, filename);
+ pfree(filename);
+ filename = expanded;
+ }
+ load_file(filename, restricted);
+ ereport(elevel,
+ (errmsg("loaded library \"%s\"", filename)));
pfree(filename);
- if (funcname)
- pfree(funcname);
}
pfree(rawstring);
list_free(elemlist);
}
+
+/*
+ * process any libraries that should be preloaded at postmaster start
+ */
+void
+process_shared_preload_libraries(void)
+{
+ process_shared_preload_libraries_in_progress = true;
+ load_libraries(shared_preload_libraries_string,
+ "shared_preload_libraries",
+ false);
+ process_shared_preload_libraries_in_progress = false;
+}
+
+/*
+ * process any libraries that should be preloaded at backend start
+ */
+void
+process_local_preload_libraries(void)
+{
+ load_libraries(local_preload_libraries_string,
+ "local_preload_libraries",
+ true);
+}
+
+void
+pg_bindtextdomain(const char *domain)
+{
+#ifdef ENABLE_NLS
+ if (my_exec_path[0] != '\0')
+ {
+ char locale_path[MAXPGPATH];
+
+ get_locale_path(my_exec_path, locale_path);
+ bindtextdomain(domain, locale_path);
+ pg_bind_textdomain_codeset(domain);
+ }
+#endif
+}
projects / postgresql / blobdiff