As a utility function, add lsdir() which reads given
directory and store entry name into a strlist.
lsdir accepts a filter function so that user can
filter out unneeded entries.
Signed-off-by: Masami Hiramatsu <masami.hiramatsu...@hitachi.com>
---
tools/perf/util/util.c | 34 ++++++++++++++++++++++++++++++++++
tools/perf/util/util.h | 4 ++++
2 files changed, 38 insertions(+)
diff --git a/tools/perf/util/util.c b/tools/perf/util/util.c
index 0c264bc..2af5b40 100644
--- a/tools/perf/util/util.c
+++ b/tools/perf/util/util.c
@@ -115,6 +115,40 @@ int rm_rf(char *path)
return rmdir(path);
}
+/* A filter which removes dot files */
+bool lsdir_no_dot_filter(const char *dirname __maybe_unused, struct dirent *d)
+{
+ return d->d_name[0] != '.';
+}
+
+/* lsdir reads a directory and store it in strlist */
+struct strlist *lsdir(const char *dirname,
+ bool (*filter)(const char *, struct dirent *))
+{
+ struct strlist *list = NULL;
+ DIR *dir;
+ struct dirent *d;
+
+ dir = opendir(dirname);
+ if (!dir)
+ return NULL;
+
+ list = strlist__new(true, NULL);
+ if (!list) {
+ errno = -ENOMEM;
+ goto out;
+ }
+
+ while ((d = readdir(dir)) != NULL) {
+ if (!filter || filter(dirname, d))
+ strlist__add(list, d->d_name);
+ }
+
+out:
+ closedir(dir);
+ return list;
+}
+
static int slow_copyfile(const char *from, const char *to, mode_t mode)
{
int err = -1;
diff --git a/tools/perf/util/util.h b/tools/perf/util/util.h
index 8bce58b..5afa003 100644
--- a/tools/perf/util/util.h
+++ b/tools/perf/util/util.h
@@ -79,6 +79,7 @@
#include <termios.h>
#include <linux/bitops.h>
#include <termios.h>
+#include "strlist.h"
extern const char *graph_line;
extern const char *graph_dotted_line;
@@ -250,6 +251,9 @@ static inline int sane_case(int x, int high)
int mkdir_p(char *path, mode_t mode);
int rm_rf(char *path);
+struct strlist *lsdir(const char *dirname,
+ bool (*filter)(const char *, struct dirent *));
+bool lsdir_no_dot_filter(const char *dirname __maybe_unused, struct dirent *d);
int copyfile(const char *from, const char *to);
int copyfile_mode(const char *from, const char *to, mode_t mode);
int copyfile_offset(int fromfd, loff_t from_ofs, int tofd, loff_t to_ofs, u64
size);
--
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