[PATCH] perf: excluding "." and ".." directories when calculatingtids.

From: Gui Jianfeng
Date: Wed Jun 16 2010 - 01:24:25 EST


Introduce a filter function to skip "." and ".." directories when calculating
tid number.

Signed-off-by: Gui Jianfeng <guijianfeng@xxxxxxxxxxxxxx>
---
tools/perf/util/thread.c | 11 ++++++++++-
1 files changed, 10 insertions(+), 1 deletions(-)

diff --git a/tools/perf/util/thread.c b/tools/perf/util/thread.c
index 1f7ecd4..9a448b4 100644
--- a/tools/perf/util/thread.c
+++ b/tools/perf/util/thread.c
@@ -7,6 +7,15 @@
#include "util.h"
#include "debug.h"

+/* Skip "." and ".." directories */
+static int filter(const struct dirent *dir)
+{
+ if (dir->d_name[0] == '.')
+ return 0;
+ else
+ return 1;
+}
+
int find_all_tid(int pid, pid_t ** all_tid)
{
char name[256];
@@ -16,7 +25,7 @@ int find_all_tid(int pid, pid_t ** all_tid)
int i;

sprintf(name, "/proc/%d/task", pid);
- items = scandir(name, &namelist, NULL, NULL);
+ items = scandir(name, &namelist, filter, NULL);
if (items <= 0)
return -ENOENT;
*all_tid = malloc(sizeof(pid_t) * items);
--
1.6.5.2

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