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perf tools: Refactor the code to strip command name with {l,r}trim()

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After reading command name from /proc/<pid>/status, use ltrim() and
rtrim() to strip command name, not using just while loop, isspace() and
etc.

Signed-off-by: Taeung Song <treeze.taeung@gmail.com>
Acked-by: David Ahern <dsahern@gmail.com>
Cc: Don Zickus <dzickus@redhat.com>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: Masami Hiramatsu <mhiramat@kernel.org>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Wang Nan <wangnan0@huawei.com>
Link: http://lkml.kernel.org/r/1491575061-704-6-git-send-email-treeze.taeung@gmail.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
This commit is contained in:
Taeung Song 2017-04-07 23:24:21 +09:00 committed by Arnaldo Carvalho de Melo
parent aa4beb10a9
commit bdd97ca63f
1 changed files with 2 additions and 9 deletions
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11
tools/perf/util/event.c
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@ -106,7 +106,7 @@ static int perf_event__get_comm_ids(pid_t pid, char *comm, size_t len,
int fd;
size_t size = 0;
ssize_t n;
char *nl, *name, *tgids, *ppids;
char *name, *tgids, *ppids;
*tgid = -1;
*ppid = -1;
@ -134,14 +134,7 @@ static int perf_event__get_comm_ids(pid_t pid, char *comm, size_t len,
if (name) {
name += 5; /* strlen("Name:") */
while (*name && isspace(*name))
++name;
nl = strchr(name, '\n');
if (nl)
*nl = '\0';
name = rtrim(ltrim(name));
size = strlen(name);
if (size >= len)
size = len - 1;