X-Git-Url: https://git.lttng.org/?a=blobdiff_plain;f=ltt-sessiond%2Futils.c;h=429d25b3b1a2ffa243d40f2d2cd32abbd1a89f27;hb=558e70e9829c97ecd228516f6e312768be0536d7;hp=91972e9a80030ab6d331b7f6d207f3532acd0b88;hpb=1e307fab325060d9db4e989c0fdc3cddf46f50f6;p=lttng-tools.git

diff --git a/ltt-sessiond/utils.c b/ltt-sessiond/utils.c
index 91972e9a8..429d25b3b 100644
--- a/ltt-sessiond/utils.c
+++ b/ltt-sessiond/utils.c
@@ -29,6 +29,21 @@
 
 #include "utils.h"
 
+/*
+ * Write to writable pipe used to notify a thread.
+ */
+int notify_thread_pipe(int wpipe)
+{
+	int ret;
+
+	ret = write(wpipe, "!", 1);
+	if (ret < 0) {
+		perror("write poll pipe");
+	}
+
+	return ret;
+}
+
 /*
  * Return pointer to home directory path using the env variable HOME.
  *