Make release_ts a bit more userfriendly

The -f option required manually *also* setting
the -w option. This is no longer required.

While at it, simplify the code by using the /proc interface.

1 files changed, 10 insertions, 5 deletions

diff --git a/src/kernel_iface.c b/src/kernel_iface.c
index 4cc1af5..e446102 100644
--- a/src/kernel_iface.c
+++ b/src/kernel_iface.c
@@ -56,9 +56,8 @@ ssize_t read_file(const char* fname, void* buf, size_t maxlen)
                 return got;
 }
 
-int get_nr_ts_release_waiters(void)
+int read_litmus_stats(int *ready, int *all)
 {
-        int ready = 0, all = 0;
         char buf[100];
         ssize_t len;
 
@@ -67,11 +66,17 @@ int get_nr_ts_release_waiters(void)
                 len = sscanf(buf,
                              "real-time tasks   = %d\n"
                              "ready for release = %d\n",
-                             &all, &ready);
-        if (len == 2)
+                             all, ready);
+        return len == 2;
+}
+
+int get_nr_ts_release_waiters(void)
+{
+        int ready, all;
+        if (read_litmus_stats(&ready, &all))
                 return ready;
         else
-                return len;
+                return -1;
 }
 
 /* thread-local pointer to control page */