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authorMasami Hiramatsu <mhiramat@redhat.com>2010-03-16 18:05:21 -0400
committerIngo Molnar <mingo@elte.hu>2010-03-17 06:32:29 -0400
commita1d37d5285bcda07f9c0b80a2634ca20ab545297 (patch)
tree5b6e5c861db7077d6fc954b3d37825751afd5a22 /tools/perf/util/util.h
parente4713e93b125497e9ba44d93de1bd9d8e5ad8946 (diff)
perf tools: Introduce xzalloc() for detecting out of memory conditions
Introducing xzalloc() which wrapping zalloc() for detecting out of memory conditions. Signed-off-by: Masami 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: Ingo Molnar <mingo@elte.hu>
Diffstat (limited to 'tools/perf/util/util.h')
-rw-r--r--tools/perf/util/util.h9
1 files changed, 9 insertions, 0 deletions
diff --git a/tools/perf/util/util.h b/tools/perf/util/util.h
index 0f5b2a6f1080..52701087ce04 100644
--- a/tools/perf/util/util.h
+++ b/tools/perf/util/util.h
@@ -295,6 +295,13 @@ extern void *xmemdupz(const void *data, size_t len);
295extern char *xstrndup(const char *str, size_t len); 295extern char *xstrndup(const char *str, size_t len);
296extern void *xrealloc(void *ptr, size_t size) __attribute__((weak)); 296extern void *xrealloc(void *ptr, size_t size) __attribute__((weak));
297 297
298static inline void *xzalloc(size_t size)
299{
300 void *buf = xmalloc(size);
301
302 return memset(buf, 0, size);
303}
304
298static inline void *zalloc(size_t size) 305static inline void *zalloc(size_t size)
299{ 306{
300 return calloc(1, size); 307 return calloc(1, size);
@@ -309,6 +316,7 @@ static inline int has_extension(const char *filename, const char *ext)
309{ 316{
310 size_t len = strlen(filename); 317 size_t len = strlen(filename);
311 size_t extlen = strlen(ext); 318 size_t extlen = strlen(ext);
319
312 return len > extlen && !memcmp(filename + len - extlen, ext, extlen); 320 return len > extlen && !memcmp(filename + len - extlen, ext, extlen);
313} 321}
314 322
@@ -322,6 +330,7 @@ static inline int has_extension(const char *filename, const char *ext)
322#undef isalnum 330#undef isalnum
323#undef tolower 331#undef tolower
324#undef toupper 332#undef toupper
333
325extern unsigned char sane_ctype[256]; 334extern unsigned char sane_ctype[256];
326#define GIT_SPACE 0x01 335#define GIT_SPACE 0x01
327#define GIT_DIGIT 0x02 336#define GIT_DIGIT 0x02