SM0 She11

Path: / / usr / include / pgsql / server / utils

Full Path (server): /usr/include/pgsql/server/utils

📄 acl.h [E] [D]
📄 array.h [E] [D]
📄 ascii.h [E] [D]
📄 attoptcache.h [E] [D]
📄 builtins.h [E] [D]
📄 bytea.h [E] [D]
📄 cash.h [E] [D]
📄 catcache.h [E] [D]
📄 combocid.h [E] [D]
📄 date.h [E] [D]
📄 datetime.h [E] [D]
📄 datum.h [E] [D]
📄 dynahash.h [E] [D]
📄 dynamic_loader.h [E] [D]
📄 elog.h [E] [D]
📄 errcodes.h [E] [D]
📄 fmgroids.h [E] [D]
📄 fmgrtab.h [E] [D]
📄 formatting.h [E] [D]
📄 geo_decls.h [E] [D]
📄 guc.h [E] [D]
📄 guc_tables.h [E] [D]
📄 help_config.h [E] [D]
📄 hsearch.h [E] [D]
📄 inet.h [E] [D]
📄 int8.h [E] [D]
📄 inval.h [E] [D]
📄 json.h [E] [D]
📄 logtape.h [E] [D]
📄 lsyscache.h [E] [D]
📄 memutils.h [E] [D]
📄 nabstime.h [E] [D]
📄 numeric.h [E] [D]
📄 palloc.h [E] [D]
📄 pg_crc.h [E] [D]
📄 pg_crc_tables.h [E] [D]
📄 pg_locale.h [E] [D]
📄 pg_lzcompress.h [E] [D]
📄 pg_rusage.h [E] [D]
📄 plancache.h [E] [D]
📄 portal.h [E] [D]
📄 probes.h [E] [D]
📄 ps_status.h [E] [D]
📄 rangetypes.h [E] [D]
📄 rbtree.h [E] [D]
📄 rel.h [E] [D]
📄 relcache.h [E] [D]
📄 relmapper.h [E] [D]
📄 reltrigger.h [E] [D]
📄 resowner.h [E] [D]
📄 selfuncs.h [E] [D]
📄 snapmgr.h [E] [D]
📄 snapshot.h [E] [D]
📄 sortsupport.h [E] [D]
📄 spccache.h [E] [D]
📄 syscache.h [E] [D]
📄 timestamp.h [E] [D]
📄 tqual.h [E] [D]
📄 tuplesort.h [E] [D]
📄 tuplestore.h [E] [D]
📄 typcache.h [E] [D]
📄 tzparser.h [E] [D]
📄 uuid.h [E] [D]
📄 varbit.h [E] [D]
📄 xml.h [E] [D]

Editing: palloc.h

/*-------------------------------------------------------------------------
 *
 * palloc.h
 *	  POSTGRES memory allocator definitions.
 *
 * This file contains the basic memory allocation interface that is
 * needed by almost every backend module.  It is included directly by
 * postgres.h, so the definitions here are automatically available
 * everywhere.  Keep it lean!
 *
 * Memory allocation occurs within "contexts".  Every chunk obtained from
 * palloc()/MemoryContextAlloc() is allocated within a specific context.
 * The entire contents of a context can be freed easily and quickly by
 * resetting or deleting the context --- this is both faster and less
 * prone to memory-leakage bugs than releasing chunks individually.
 * We organize contexts into context trees to allow fine-grain control
 * over chunk lifetime while preserving the certainty that we will free
 * everything that should be freed.  See utils/mmgr/README for more info.
 *
 *
 * Portions Copyright (c) 1996-2012, PostgreSQL Global Development Group
 * Portions Copyright (c) 1994, Regents of the University of California
 *
 * src/include/utils/palloc.h
 *
 *-------------------------------------------------------------------------
 */
#ifndef PALLOC_H
#define PALLOC_H

/*
 * Type MemoryContextData is declared in nodes/memnodes.h.  Most users
 * of memory allocation should just treat it as an abstract type, so we
 * do not provide the struct contents here.
 */
typedef struct MemoryContextData *MemoryContext;

/*
 * CurrentMemoryContext is the default allocation context for palloc().
 * We declare it here so that palloc() can be a macro.  Avoid accessing it
 * directly!  Instead, use MemoryContextSwitchTo() to change the setting.
 */
extern PGDLLIMPORT MemoryContext CurrentMemoryContext;

/*
 * Fundamental memory-allocation operations (more are in utils/memutils.h)
 */
extern void *MemoryContextAlloc(MemoryContext context, Size size);
extern void *MemoryContextAllocZero(MemoryContext context, Size size);
extern void *MemoryContextAllocZeroAligned(MemoryContext context, Size size);

#define palloc(sz)	MemoryContextAlloc(CurrentMemoryContext, (sz))

#define palloc0(sz) MemoryContextAllocZero(CurrentMemoryContext, (sz))

/*
 * The result of palloc() is always word-aligned, so we can skip testing
 * alignment of the pointer when deciding which MemSet variant to use.
 * Note that this variant does not offer any advantage, and should not be
 * used, unless its "sz" argument is a compile-time constant; therefore, the
 * issue that it evaluates the argument multiple times isn't a problem in
 * practice.
 */
#define palloc0fast(sz) \
	( MemSetTest(0, sz) ? \
		MemoryContextAllocZeroAligned(CurrentMemoryContext, sz) : \
		MemoryContextAllocZero(CurrentMemoryContext, sz) )

extern void pfree(void *pointer);

extern void *repalloc(void *pointer, Size size);

/*
 * MemoryContextSwitchTo can't be a macro in standard C compilers.
 * But we can make it an inline function if the compiler supports it.
 *
 * This file has to be includable by some non-backend code such as
 * pg_resetxlog, so don't expose the CurrentMemoryContext reference
 * if FRONTEND is defined.
 */
#if defined(USE_INLINE) && !defined(FRONTEND)

static inline MemoryContext
MemoryContextSwitchTo(MemoryContext context)
{
	MemoryContext old = CurrentMemoryContext;

CurrentMemoryContext = context;
	return old;
}
#else

extern MemoryContext MemoryContextSwitchTo(MemoryContext context);
#endif   /* USE_INLINE && !FRONTEND */

/*
 * These are like standard strdup() except the copied string is
 * allocated in a context, not with malloc().
 */
extern char *MemoryContextStrdup(MemoryContext context, const char *string);

#define pstrdup(str)  MemoryContextStrdup(CurrentMemoryContext, (str))

extern char *pnstrdup(const char *in, Size len);

#if defined(WIN32) || defined(__CYGWIN__)
extern void *pgport_palloc(Size sz);
extern char *pgport_pstrdup(const char *str);
extern void pgport_pfree(void *pointer);
#endif

#endif   /* PALLOC_H */