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Commit a1d37d52 authored by Masami Hiramatsu's avatar Masami Hiramatsu Committed by Ingo Molnar
Browse files

perf tools: Introduce xzalloc() for detecting out of memory conditions 



Introducing xzalloc() which wrapping zalloc() for detecting out
of memory conditions.

Signed-off-by: default avatarMasami Hiramatsu <mhiramat@redhat.com>
Cc: systemtap <systemtap@sources.redhat.com>
Cc: DLE <dle-develop@lists.sourceforge.net>
Cc: Frederic Weisbecker <fweisbec@gmail.com>
Cc: Arnaldo Carvalho de Melo <acme@redhat.com>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Mike Galbraith <efault@gmx.de>
Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
LKML-Reference: <20100316220521.32050.85155.stgit@localhost6.localdomain6>
[ -v2: small cleanups in surrounding code ]
Signed-off-by: default avatarIngo Molnar <mingo@elte.hu>
parent e4713e93

tools/perf/util/util.h

+9 −0
Original line number Diff line number Diff line
@@ -295,6 +295,13 @@ extern void *xmemdupz(const void *data, size_t len); 
extern char *xstrndup(const char *str, size_t len);

extern void *xrealloc(void *ptr, size_t size) __attribute__((weak));



static inline void *xzalloc(size_t size)

{

	void *buf = xmalloc(size);



	return memset(buf, 0, size);

}



static inline void *zalloc(size_t size)

{

	return calloc(1, size);
@@ -309,6 +316,7 @@ static inline int has_extension(const char *filename, const char *ext) 
{

	size_t len = strlen(filename);

	size_t extlen = strlen(ext);



	return len > extlen && !memcmp(filename + len - extlen, ext, extlen);

}
@@ -322,6 +330,7 @@ static inline int has_extension(const char *filename, const char *ext) 
#undef isalnum

#undef tolower

#undef toupper



extern unsigned char sane_ctype[256];

#define GIT_SPACE		0x01

#define GIT_DIGIT		0x02