perf evsel: Adopt find_process()
And make it static, nobody else uses it, if we ever need it in more
places we can carve a new source file for process related methods,
for now lets reduce util.{c,h} a tad more.
Link: http://lkml.kernel.org/n/tip-zgb28rllvypjibw52aaz9p15@git.kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
diff --git a/tools/perf/util/evsel.c b/tools/perf/util/evsel.c
index 7f78f27..6f4882f 100644
--- a/tools/perf/util/evsel.c
+++ b/tools/perf/util/evsel.c
@@ -11,6 +11,7 @@
#include <errno.h>
#include <inttypes.h>
#include <linux/bitops.h>
+#include <api/fs/fs.h>
#include <api/fs/tracing_path.h>
#include <traceevent/event-parse.h>
#include <linux/hw_breakpoint.h>
@@ -19,6 +20,8 @@
#include <linux/err.h>
#include <sys/ioctl.h>
#include <sys/resource.h>
+#include <sys/types.h>
+#include <dirent.h>
#include "asm/bug.h"
#include "callchain.h"
#include "cgroup.h"
@@ -2472,6 +2475,42 @@ bool perf_evsel__fallback(struct perf_evsel *evsel, int err,
return false;
}
+static bool find_process(const char *name)
+{
+ size_t len = strlen(name);
+ DIR *dir;
+ struct dirent *d;
+ int ret = -1;
+
+ dir = opendir(procfs__mountpoint());
+ if (!dir)
+ return false;
+
+ /* Walk through the directory. */
+ while (ret && (d = readdir(dir)) != NULL) {
+ char path[PATH_MAX];
+ char *data;
+ size_t size;
+
+ if ((d->d_type != DT_DIR) ||
+ !strcmp(".", d->d_name) ||
+ !strcmp("..", d->d_name))
+ continue;
+
+ scnprintf(path, sizeof(path), "%s/%s/comm",
+ procfs__mountpoint(), d->d_name);
+
+ if (filename__read_str(path, &data, &size))
+ continue;
+
+ ret = strncmp(name, data, len);
+ free(data);
+ }
+
+ closedir(dir);
+ return ret ? false : true;
+}
+
int perf_evsel__open_strerror(struct perf_evsel *evsel, struct target *target,
int err, char *msg, size_t size)
{