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perf tools: Add rm_rf() utility function

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The rm_rf() function does same as the shell command 'rm -rf' which
removes all directory entries recursively.

Signed-off-by: Namhyung Kim <namhyung@kernel.org>
Acked-by: Jiri Olsa <jolsa@kernel.org>
Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: Andi Kleen <andi@firstfloor.org>
Cc: David Ahern <dsahern@gmail.com>
Cc: Frederic Weisbecker <fweisbec@gmail.com>
Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
Cc: Stephane Eranian <eranian@google.com>
Link: http://lkml.kernel.org/r/1431909055-21442-3-git-send-email-namhyung@kernel.org
Link: http://lkml.kernel.org/r/20150130150256.GF6188@krava.brq.redhat.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
This commit is contained in:
Namhyung Kim 2015-05-18 09:30:17 +09:00 committed by Arnaldo Carvalho de Melo
parent 86066064e3
commit 0b1de0be1e
2 changed files with 44 additions and 0 deletions
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43
tools/perf/util/util.c
View File

@ -72,6 +72,49 @@ int mkdir_p(char *path, mode_t mode)
return (stat(path, &st) && mkdir(path, mode)) ? -1 : 0;
}
int rm_rf(char *path)
{
DIR *dir;
int ret = 0;
struct dirent *d;
char namebuf[PATH_MAX];
dir = opendir(path);
if (dir == NULL)
return 0;
while ((d = readdir(dir)) != NULL && !ret) {
struct stat statbuf;
if (!strcmp(d->d_name, ".") || !strcmp(d->d_name, ".."))
continue;
scnprintf(namebuf, sizeof(namebuf), "%s/%s",
path, d->d_name);
ret = stat(namebuf, &statbuf);
if (ret < 0) {
pr_debug("stat failed: %s\n", namebuf);
break;
}
if (S_ISREG(statbuf.st_mode))
ret = unlink(namebuf);
else if (S_ISDIR(statbuf.st_mode))
ret = rm_rf(namebuf);
else {
pr_debug("unknown file: %s\n", namebuf);
ret = -1;
}
}
closedir(dir);
if (ret < 0)
return ret;
return rmdir(path);
}
static int slow_copyfile(const char *from, const char *to, mode_t mode)
{
int err = -1;

1
tools/perf/util/util.h
View File

@ -249,6 +249,7 @@ static inline int sane_case(int x, int high)
}
int mkdir_p(char *path, mode_t mode);
int rm_rf(char *path);
int copyfile(const char *from, const char *to);
int copyfile_mode(const char *from, const char *to, mode_t mode);