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45 lines
1.5 KiB
C
45 lines
1.5 KiB
C
/*
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* fe_memutils.h
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* memory management support for frontend code
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*
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* Copyright (c) 2003-2018, PostgreSQL Global Development Group
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*
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* src/include/common/fe_memutils.h
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*/
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#ifndef FE_MEMUTILS_H
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#define FE_MEMUTILS_H
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/*
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* Flags for pg_malloc_extended and palloc_extended, deliberately named
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* the same as the backend flags.
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*/
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#define MCXT_ALLOC_HUGE 0x01 /* allow huge allocation (> 1 GB) not
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* actually used for frontends */
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#define MCXT_ALLOC_NO_OOM 0x02 /* no failure if out-of-memory */
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#define MCXT_ALLOC_ZERO 0x04 /* zero allocated memory */
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/*
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* "Safe" memory allocation functions --- these exit(1) on failure
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* (except pg_malloc_extended with MCXT_ALLOC_NO_OOM)
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*/
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extern char *pg_strdup(const char *in);
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extern void *pg_malloc(size_t size);
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extern void *pg_malloc0(size_t size);
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extern void *pg_malloc_extended(size_t size, int flags);
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extern void *pg_realloc(void *pointer, size_t size);
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extern void pg_free(void *pointer);
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/* Equivalent functions, deliberately named the same as backend functions */
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extern char *pstrdup(const char *in);
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extern void *palloc(Size size);
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extern void *palloc0(Size size);
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extern void *palloc_extended(Size size, int flags);
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extern void *repalloc(void *pointer, Size size);
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extern void pfree(void *pointer);
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/* sprintf into a palloc'd buffer --- these are in psprintf.c */
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extern char *psprintf(const char *fmt,...) pg_attribute_printf(1, 2);
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extern size_t pvsnprintf(char *buf, size_t len, const char *fmt, va_list args) pg_attribute_printf(3, 0);
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#endif /* FE_MEMUTILS_H */
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