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Macros
#define	MCXT_ALLOC_HUGE

#define	MCXT_ALLOC_NO_OOM 0x02 /* no failure if out-of-memory */

#define	MCXT_ALLOC_ZERO 0x04 /* zero allocated memory */

#define	pg_malloc_object(type) ((type *) pg_malloc(sizeof(type)))

#define	pg_malloc0_object(type) ((type *) pg_malloc0(sizeof(type)))

#define	pg_malloc_array(type, count) ((type ) pg_malloc(sizeof(type) (count)))

#define	pg_malloc0_array(type, count) ((type ) pg_malloc0(sizeof(type) (count)))

#define	pg_realloc_array(pointer, type, count) ((type ) pg_realloc(pointer, sizeof(type) (count)))

#define	palloc_object(type) ((type *) palloc(sizeof(type)))

#define	palloc0_object(type) ((type *) palloc0(sizeof(type)))

#define	palloc_array(type, count) ((type ) palloc(sizeof(type) (count)))

#define	palloc0_array(type, count) ((type ) palloc0(sizeof(type) (count)))

#define	repalloc_array(pointer, type, count) ((type ) repalloc(pointer, sizeof(type) (count)))

Functions
char *	pg_strdup (const char *in)

void *	pg_malloc (size_t size)

void *	pg_malloc0 (size_t size)

void *	pg_malloc_extended (size_t size, int flags)

void *	pg_realloc (void *ptr, size_t size)

void	pg_free (void *ptr)

char *	pstrdup (const char *in)

char *	pnstrdup (const char *in, Size size)

void *	palloc (Size size)

void *	palloc0 (Size size)

void *	palloc_extended (Size size, int flags)

void *	repalloc (void *pointer, Size size)

void	pfree (void *pointer)

char *	psprintf (const char *fmt,...) pg_attribute_printf(1

char size_t	pvsnprintf (char buf, size_t len, const char fmt, va_list args) pg_attribute_printf(3

Macro Definition Documentation

◆ MCXT_ALLOC_HUGE

#define MCXT_ALLOC_HUGE

Value:

0x01 /* allow huge allocation (> 1 GB) not

* actually used for frontends */

Definition at line 16 of file fe_memutils.h.

◆ MCXT_ALLOC_NO_OOM

#define MCXT_ALLOC_NO_OOM 0x02 /* no failure if out-of-memory */

Definition at line 17 of file fe_memutils.h.

◆ MCXT_ALLOC_ZERO

#define MCXT_ALLOC_ZERO 0x04 /* zero allocated memory */

Definition at line 18 of file fe_memutils.h.

◆ palloc0_array

#define palloc0_array	(	type,
		count
	)	((type ) palloc0(sizeof(type) (count)))

Definition at line 65 of file fe_memutils.h.

◆ palloc0_object

#define palloc0_object ( type ) ((type *) palloc0(sizeof(type)))

Definition at line 63 of file fe_memutils.h.

◆ palloc_array

#define palloc_array	(	type,
		count
	)	((type ) palloc(sizeof(type) (count)))

Definition at line 64 of file fe_memutils.h.

◆ palloc_object

#define palloc_object ( type ) ((type *) palloc(sizeof(type)))

Definition at line 62 of file fe_memutils.h.

◆ pg_malloc0_array

#define pg_malloc0_array	(	type,
		count
	)	((type ) pg_malloc0(sizeof(type) (count)))

Definition at line 45 of file fe_memutils.h.

◆ pg_malloc0_object

#define pg_malloc0_object ( type ) ((type *) pg_malloc0(sizeof(type)))

Definition at line 39 of file fe_memutils.h.

◆ pg_malloc_array

#define pg_malloc_array	(	type,
		count
	)	((type ) pg_malloc(sizeof(type) (count)))

Definition at line 44 of file fe_memutils.h.

◆ pg_malloc_object

#define pg_malloc_object ( type ) ((type *) pg_malloc(sizeof(type)))

Definition at line 38 of file fe_memutils.h.

◆ pg_realloc_array

#define pg_realloc_array	(	pointer,
		type,
		count
	)	((type ) pg_realloc(pointer, sizeof(type) (count)))

Definition at line 51 of file fe_memutils.h.

◆ repalloc_array

#define repalloc_array	(	pointer,
		type,
		count
	)	((type ) repalloc(pointer, sizeof(type) (count)))

Definition at line 66 of file fe_memutils.h.

Function Documentation

◆ palloc()

void* palloc ( Size size )

Definition at line 1316 of file mcxt.c.

 {
     /* duplicates MemoryContextAlloc to avoid increased overhead */
     void       *ret;
     MemoryContext context = CurrentMemoryContext;
  
     Assert(MemoryContextIsValid(context));
     AssertNotInCriticalSection(context);
  
     context->isReset = false;
  
     /*
      * For efficiency reasons, we purposefully offload the handling of
      * allocation failures to the MemoryContextMethods implementation as this
      * allows these checks to be performed only when an actual malloc needs to
      * be done to request more memory from the OS.  Additionally, not having
      * to execute any instructions after this call allows the compiler to use
      * the sibling call optimization.  If you're considering adding code after
      * this call, consider making it the responsibility of the 'alloc'
      * function instead.
      */
     ret = context->methods->alloc(context, size, 0);
     /* We expect OOM to be handled by the alloc function */
     Assert(ret != NULL);
     VALGRIND_MEMPOOL_ALLOC(context, ret, size);
  
     return ret;
 }

◆ palloc0()

void* palloc0 ( Size size )

Definition at line 1346 of file mcxt.c.

 {
     /* duplicates MemoryContextAllocZero to avoid increased overhead */
     void       *ret;
     MemoryContext context = CurrentMemoryContext;
  
     Assert(MemoryContextIsValid(context));
     AssertNotInCriticalSection(context);
  
     context->isReset = false;
  
     ret = context->methods->alloc(context, size, 0);
  
     VALGRIND_MEMPOOL_ALLOC(context, ret, size);
  
     MemSetAligned(ret, 0, size);
  
     return ret;
 }

◆ palloc_extended()

void* palloc_extended	(	Size	size,
		int	flags
	)

Definition at line 1367 of file mcxt.c.

 {
     /* duplicates MemoryContextAllocExtended to avoid increased overhead */
     void       *ret;
     MemoryContext context = CurrentMemoryContext;
  
     Assert(MemoryContextIsValid(context));
     AssertNotInCriticalSection(context);
  
     context->isReset = false;
  
     ret = context->methods->alloc(context, size, flags);
     if (unlikely(ret == NULL))
     {
         return NULL;
     }
  
     VALGRIND_MEMPOOL_ALLOC(context, ret, size);
  
     if ((flags & MCXT_ALLOC_ZERO) != 0)
         MemSetAligned(ret, 0, size);
  
     return ret;
 }

◆ pfree()

void pfree ( void * pointer )

Definition at line 1520 of file mcxt.c.

 {
 #ifdef USE_VALGRIND
     MemoryContextMethodID method = GetMemoryChunkMethodID(pointer);
     MemoryContext context = GetMemoryChunkContext(pointer);
 #endif
  
     MCXT_METHOD(pointer, free_p) (pointer);
  
 #ifdef USE_VALGRIND
     if (method != MCTX_ALIGNED_REDIRECT_ID)
         VALGRIND_MEMPOOL_FREE(context, pointer);
 #endif
 }

◆ pg_free()

void pg_free ( void * ptr )

Definition at line 105 of file fe_memutils.c.

 {
     free(ptr);
 }

References free.

Referenced by _printTocEntry(), advanceConnectionState(), append_depends_on_extension(), appendQualifiedRelation(), avlFree(), bool_substitute_hook(), calculate_totals(), check_exec(), check_for_data_types_usage(), check_publisher(), checksum_file(), close_walfile(), copy_file_blocks(), copyFile(), create_logical_replication_slot(), create_publication(), create_script_for_old_cluster_deletion(), create_subscription(), datapagemap_print(), dir_close(), dir_free(), dir_open_for_write(), do_connect(), do_watch(), drop_publication(), drop_replication_slot(), dumpFunc(), dumpRoleMembership(), enable_subscription(), EndCompressor(), FindStreamingStart(), free_command(), free_db_and_rel_infos(), free_rel_infos(), free_socket_set(), get_control_data(), get_loadable_libraries(), get_restricted_token(), get_standby_sysid(), getTimelineHistory(), icu_language_tag(), init_libpq_conn(), IssueACLPerBlob(), IssueCommandPerBlob(), libpq_get_current_wal_insert_lsn(), listSchemas(), main(), make_rfile(), makeAlterConfigCommand(), modify_subscriber_sysid(), open_walfile(), parallel_exec_prog(), parallel_transfer_all_new_dbs(), parseAclItem(), parseCommandLine(), parseQuery(), perform_rewind(), pfree(), printCrosstab(), PrintResultInCrosstab(), process_queued_fetch_requests(), rankSort(), readCommandResponse(), ReadHead(), readMessageFromPipe(), ReceiveXlogStream(), reconstruct_from_incremental_file(), reindex_one_database(), RestoreArchive(), run_schedule(), SendQuery(), set_replication_progress(), setlocales(), setup_publisher(), SetVariable(), simple_oid_list_destroy(), simple_string_list_destroy(), SortTocFromFile(), tar_close(), tar_free(), tar_open_for_write(), transfer_all_new_dbs(), vacuum_one_database(), and WriteDataChunks().

◆ pg_malloc()

void* pg_malloc ( size_t size )

Definition at line 47 of file fe_memutils.c.

 {
     return pg_malloc_internal(size, 0);
 }

References pg_malloc_internal(), and size.

Referenced by _Clone(), _CustomReadFunc(), _PrintFileData(), _skipData(), add_one_elt(), add_stringlist_item(), ahprintf(), allocCStatePrepared(), ArchiveEntry(), archprintf(), avlInsertNode(), buildACLCommands(), BuildArchiveDependencies(), check_testspec(), checksum_file(), CloneArchive(), collectComments(), collectRoleNames(), collectSecLabels(), conditional_stack_create(), conditional_stack_push(), copy_connection(), copy_file_blocks(), copyFile(), create_manifest_writer(), create_sql_command(), createBoundaryObjects(), CreateVariableSpace(), CreateWalTarMethod(), datapagemap_iterate(), decide_file_actions(), do_connect(), do_watch(), dumpTableData_insert(), escape_quotes_bki(), ExecuteSqlCommandBuf(), find_other_exec_or_die(), findDependencyLoops(), fix_dependencies(), format_numeric_locale(), gen_db_file_maps(), get_comma_elts(), get_exec_path(), get_loadable_libraries(), get_old_cluster_logical_slot_infos(), get_rel_infos(), get_tablespace_paths(), get_template0_info(), getAccessMethods(), getAggregates(), getCasts(), getCollations(), getConstraints(), getConversions(), getDefaultACLs(), getDomainConstraints(), getEventTriggers(), getExtendedStatistics(), getExtensions(), getForeignDataWrappers(), getForeignServers(), getFuncs(), getIndexes(), getInherits(), getLOs(), getNamespaces(), getOpclasses(), getOperators(), getOpfamilies(), getPolicies(), getProcLangs(), getPublicationNamespaces(), getPublications(), getPublicationTables(), getRules(), getSubscriptions(), getSubscriptionTables(), getTableAttrs(), getTimelineHistory(), getTransforms(), getTriggers(), getTSConfigurations(), getTSDictionaries(), getTSParsers(), getTSTemplates(), getTypes(), icu_language_tag(), identify_locking_dependencies(), libpq_fetch_file(), listSchemas(), load_backup_manifest(), load_backup_manifests(), load_resultmap(), main(), makeTableDataInfo(), NewDumpOptions(), parallel_exec_prog(), parallel_transfer_all_new_dbs(), ParallelBackupStart(), parse_manifest_file(), ParseScript(), parseScriptWeight(), parseVariable(), pretty_wal_size(), print_aligned_text(), print_aligned_vertical(), printCrosstab(), PrintResultInCrosstab(), process_directory_recursively(), process_queued_fetch_requests(), pset_quoted_string(), quote_identifier(), quote_if_needed(), rankSort(), read_controlfile(), read_file_contents(), ReadDataFromArchiveNone(), readfile(), readMessageFromPipe(), ReadStr(), ReadToc(), reconstruct_from_incremental_file(), remember_to_cleanup_directory(), replace_token(), rewind_parseTimeLineHistory(), run_all_permutations(), run_permutation(), savePsetInfo(), setup_bin_paths(), SetVariable(), SetVariableHooks(), simple_oid_list_append(), simple_ptr_list_append(), simple_string_list_append(), slurpFile(), sortDumpableObjects(), SplitGUCList(), sql_exec(), sql_exec_searchtables(), StartRestoreLO(), strtokx(), tar_open_for_write(), tarPrintf(), TopoSort(), verify_backup_checksums(), wait_for_tests(), WaitForTerminatingWorkers(), and WriteDataChunks().

◆ pg_malloc0()

void* pg_malloc0 ( size_t size )

Definition at line 53 of file fe_memutils.c.

 {
     return pg_malloc_internal(size, MCXT_ALLOC_ZERO);
 }

References MCXT_ALLOC_ZERO, pg_malloc_internal(), and size.

Referenced by _allocAH(), _ArchiveEntry(), _discoverArchiveFormat(), _ReadExtraToc(), add_tablespace_mapping(), alloc_socket_set(), AllocateCompressor(), allocCStatePrepared(), ArchiveEntry(), avlInit(), buildTocEntryArrays(), check_for_data_types_usage(), compile_database_list(), compile_relation_list_one_db(), connectDatabase(), CreateWalDirectoryMethod(), CreateWalTarMethod(), describeRoles(), dir_get_file_name(), dir_open_for_write(), dumpRoleMembership(), findDependencyLoops(), FindStreamingStart(), get_db_infos(), get_parallel_object_list(), GetConnection(), getFuncs(), getTables(), init_libpq_source(), init_local_source(), InitArchiveFmt_Custom(), InitArchiveFmt_Directory(), InitCompressFileHandle(), load_backup_manifest(), main(), make_incremental_rfile(), make_outputdirs(), make_rfile(), NewRestoreOptions(), parallel_exec_prog(), parallel_transfer_all_new_dbs(), ParallelBackupStart(), parse_manifest_file(), parse_slash_copy(), print_aligned_text(), printTableAddCell(), printTableAddFooter(), printTableInit(), process_backslash_command(), ReadToc(), reconstruct_from_incremental_file(), reindex_one_database(), run_all_permutations(), scan_for_existing_tablespaces(), setup_connection(), SortTocFromFile(), StartLogStreamer(), tablespace_list_append(), tar_get_file_name(), tar_open_for_write(), and TopoSort().

◆ pg_malloc_extended()

void* pg_malloc_extended	(	size_t	size,
		int	flags
	)

Definition at line 59 of file fe_memutils.c.

 {
     return pg_malloc_internal(size, flags);
 }

References pg_malloc_internal(), and size.

Referenced by do_lo_import(), and pg_log_generic_v().

◆ pg_realloc()

void* pg_realloc	(	void *	ptr,
		size_t	size
	)

Definition at line 65 of file fe_memutils.c.

 {
     void       *tmp;
  
     /* Avoid unportable behavior of realloc(NULL, 0) */
     if (ptr == NULL && size == 0)
         size = 1;
     tmp = realloc(ptr, size);
     if (!tmp)
     {
         fprintf(stderr, _("out of memory\n"));
         exit(EXIT_FAILURE);
     }
     return tmp;
 }

References _, exit(), EXIT_FAILURE, fprintf, realloc, and size.

Referenced by add_one_elt(), BuildArchiveDependencies(), datapagemap_add(), enlargeVariables(), exec_command_set(), extend_pattern_info_array(), findDumpableDependencies(), icu_language_tag(), identify_locking_dependencies(), main(), ParseScript(), read_file_contents(), readfile(), readMessageFromPipe(), ReadToc(), repalloc(), replaceVariable(), and rewind_parseTimeLineHistory().

◆ pg_strdup()

char* pg_strdup ( const char * in )

Definition at line 85 of file fe_memutils.c.

 {
     char       *tmp;
  
     if (!in)
     {
         fprintf(stderr,
                 _("cannot duplicate null pointer (internal error)\n"));
         exit(EXIT_FAILURE);
     }
     tmp = strdup(in);
     if (!tmp)
     {
         fprintf(stderr, _("out of memory\n"));
         exit(EXIT_FAILURE);
     }
     return tmp;
 }

References _, exit(), EXIT_FAILURE, and fprintf.

Referenced by _allocAH(), _ArchiveEntry(), _becomeUser(), _check_database_version(), _getObjectDescription(), _selectOutputSchema(), _selectTableAccessMethod(), _selectTablespace(), _tarGetHeader(), add_one_elt(), add_stringlist_item(), adjust_data_dir(), append_depends_on_extension(), ArchiveEntry(), bool_substitute_hook(), check_locale_name(), check_publisher(), check_required_directory(), check_subscriber(), CloneArchive(), collectComments(), collectRoleNames(), collectSecLabels(), comp_keyword_case_substitute_hook(), concat_conninfo_dbname(), ConnectDatabase(), constructConnStr(), convertRegProcReference(), convertTSFunction(), create_logical_replication_slot(), create_script_for_old_cluster_deletion(), createBoundaryObjects(), CreateWalDirectoryMethod(), describeOneTableDetails(), describeRoles(), dir_open_for_write(), do_pset(), dumpAccessMethod(), dumpAttrDef(), dumpBaseType(), dumpCollation(), dumpCompositeType(), dumpConversion(), dumpDatabase(), dumpDomain(), dumpEnumType(), dumpEventTrigger(), dumpExtension(), dumpForeignDataWrapper(), dumpForeignServer(), dumpIndex(), dumpNamespace(), dumpOpclass(), dumpOpfamily(), dumpOptionsFromRestoreOptions(), dumpPolicy(), dumpProcLang(), dumpPublication(), dumpRangeType(), dumpRoleGUCPrivs(), dumpRule(), dumpSearchPath(), dumpSequence(), dumpStatisticsExt(), dumpSubscription(), dumpTable(), dumpTableConstraintComment(), dumpTableData(), dumpTableSchema(), dumpTablespaces(), dumpTrigger(), dumpTSConfig(), dumpTSDictionary(), dumpTSParser(), dumpTSTemplate(), dumpUndefinedType(), echo_substitute_hook(), encodingid_to_string(), exec_command_g(), exec_command_gset(), exec_command_password(), exec_command_set(), fetch_count_substitute_hook(), find_matching_ts_config(), FindDbnameInConnParams(), fix_path_separator(), flagInhAttrs(), flagInhIndexes(), flagInhTables(), format_numeric_locale(), get_base_conninfo(), get_comma_elts(), get_control_data(), get_db_infos(), get_id(), get_language_name(), get_loadable_libraries(), get_old_cluster_logical_slot_infos(), get_opts(), get_rel_infos(), get_restricted_token(), get_sock_dir(), get_sub_conninfo(), get_synchronized_snapshot(), get_tablespace_paths(), get_template0_info(), get_user_info(), getAccessMethods(), getAggregates(), getCollations(), getConstraints(), getConversions(), getDefaultACLs(), getDomainConstraints(), getEventTriggers(), getExtendedStatistics(), getExtensions(), getForeignDataWrappers(), getForeignServers(), getFormattedTypeName(), getFuncs(), getIndexes(), getLOs(), getNamespaces(), getOpclasses(), getOperators(), getOpfamilies(), getPolicies(), getProcLangs(), getPublications(), getPublicationTables(), getRules(), gets_fromFile(), getSubscriptions(), getSubscriptionTables(), getTableAttrs(), getTables(), getTriggers(), getTSConfigurations(), getTSDictionaries(), getTSParsers(), getTSTemplates(), getTypes(), getVariable(), handle_args(), histcontrol_substitute_hook(), histsize_substitute_hook(), identify_target_directory(), ignoreeof_substitute_hook(), InitDiscoverCompressFileHandle(), initializeInput(), insert_filehash_entry(), IssueACLPerBlob(), IssueCommandPerBlob(), listSchemas(), load_resultmap(), locale_date_order(), lookupCreateVariable(), main(), MainLoop(), makeAlterConfigCommand(), open_result_files(), parallel_exec_prog(), parallel_transfer_all_new_dbs(), parse_psql_options(), parse_slash_copy(), parseAclItem(), parseCommandLine(), parseQuery(), ParseScript(), parseScriptWeight(), pg_send_history(), postprocess_sql_command(), printTableAddFooter(), printTableSetFooter(), process_backslash_command(), process_source_file(), process_target_file(), processEncodingEntry(), processExtensionTables(), processSearchPathEntry(), progress_update_filename(), psql_get_variable(), pstrdup(), putVariable(), read_post_opts(), readfile(), ReconnectToServer(), regression_main(), RestoreArchive(), run_schedule(), run_simple_query(), RunIdentifySystem(), sanitize_line(), savePsetInfo(), search_directory(), sendCommand(), set_info_version(), set_locale_and_encoding(), setDecimalLocale(), setup(), setup_config(), setup_connection(), setup_pgdata(), setup_publisher(), SetVariable(), SetVariableHooks(), show_context_substitute_hook(), simple_action_list_append(), simple_prompt_extended(), split_path(), split_to_stringlist(), tar_open_for_write(), tarOpen(), and verbosity_substitute_hook().

◆ pnstrdup()

char* pnstrdup	(	const char *	in,
		Size	size
	)

Definition at line 1706 of file mcxt.c.

 {
     char       *out;
  
     len = strnlen(in, len);
  
     out = palloc(len + 1);
     memcpy(out, in, len);
     out[len] = '\0';
  
     return out;
 }

◆ psprintf()

char* psprintf	(	const char *	fmt,
			...
	)

◆ pstrdup()

char* pstrdup ( const char * in )

Definition at line 1695 of file mcxt.c.

 {
     return MemoryContextStrdup(CurrentMemoryContext, in);
 }

◆ pvsnprintf()

char size_t pvsnprintf	(	char *	buf,
		size_t	len,
		const char *	fmt,
		va_list	args
	)

◆ repalloc()

void* repalloc	(	void *	pointer,
		Size	size
	)

Definition at line 1540 of file mcxt.c.

 {
 #ifdef USE_VALGRIND
     MemoryContextMethodID method = GetMemoryChunkMethodID(pointer);
 #endif
 #if defined(USE_ASSERT_CHECKING) || defined(USE_VALGRIND)
     MemoryContext context = GetMemoryChunkContext(pointer);
 #endif
     void       *ret;
  
     AssertNotInCriticalSection(context);
  
     /* isReset must be false already */
     Assert(!context->isReset);
  
     /*
      * For efficiency reasons, we purposefully offload the handling of
      * allocation failures to the MemoryContextMethods implementation as this
      * allows these checks to be performed only when an actual malloc needs to
      * be done to request more memory from the OS.  Additionally, not having
      * to execute any instructions after this call allows the compiler to use
      * the sibling call optimization.  If you're considering adding code after
      * this call, consider making it the responsibility of the 'realloc'
      * function instead.
      */
     ret = MCXT_METHOD(pointer, realloc) (pointer, size, 0);
  
 #ifdef USE_VALGRIND
     if (method != MCTX_ALIGNED_REDIRECT_ID)
         VALGRIND_MEMPOOL_CHANGE(context, pointer, ret, size);
 #endif
  
     return ret;
 }

Macros

Functions