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Add support for easily declaring static inline functions

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We already had those, but they forced modules to spell out the function
bodies twice.  Eliminate some duplicates we had already grown.

Extracted from a somewhat larger patch from Andres Freund.
This commit is contained in:
Alvaro Herrera
2012-10-08 16:12:27 -03:00
parent 08c8058ce9
commit 976fa10d20
7 changed files with 59 additions and 117 deletions
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14
src/include/utils/palloc.h
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@ -73,14 +73,19 @@ 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.
* See STATIC_IF_INLINE in c.h.
*
* 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)
#ifndef FRONTEND
static inline MemoryContext
#ifndef USE_INLINE
extern MemoryContext MemoryContextSwitchTo(MemoryContext context);
#endif /* !USE_INLINE */
#if defined(USE_INLINE) || defined(MCXT_INCLUDE_DEFINITIONS)
STATIC_IF_INLINE MemoryContext
MemoryContextSwitchTo(MemoryContext context)
{
MemoryContext old = CurrentMemoryContext;
@ -88,10 +93,9 @@ MemoryContextSwitchTo(MemoryContext context)
CurrentMemoryContext = context;
return old;
}
#else
#endif
extern MemoryContext MemoryContextSwitchTo(MemoryContext context);
#endif /* USE_INLINE && !FRONTEND */
#endif /* !FRONTEND */
/*
* These are like standard strdup() except the copied string is