X-Git-Url: https://git.lttng.org/?p=lttng-tools.git;a=blobdiff_plain;f=tests%2Fregression%2Ftools%2Fnotification%2Fdefault_pipe_size_getter.cpp;fp=tests%2Fregression%2Ftools%2Fnotification%2Fdefault_pipe_size_getter.cpp;h=cc24cec1ea01ea45bd34ecba5b8697d3d5d5409c;hp=0000000000000000000000000000000000000000;hb=a6bc4ca9d659caf016ef932fcd944029737ac57c;hpb=97535efaa975ca52bf02c2d5e76351bfd2e3defa

diff --git a/tests/regression/tools/notification/default_pipe_size_getter.cpp b/tests/regression/tools/notification/default_pipe_size_getter.cpp
new file mode 100644
index 000000000..cc24cec1e
--- /dev/null
+++ b/tests/regression/tools/notification/default_pipe_size_getter.cpp
@@ -0,0 +1,53 @@
+/*
+ * default_pipe_size_getter.c
+ *
+ * Tests suite for LTTng notification API (get default size of pipes)
+ *
+ * Copyright (C) 2021 Jérémie Galarneau <jeremie.galarneau@efficios.com>
+ *
+ * SPDX-License-Identifier: MIT
+ *
+ */
+
+#include <unistd.h>
+#include <fcntl.h>
+#include <stdio.h>
+#include <stdlib.h>
+
+#include <common/pipe.h>
+#include <common/error.h>
+
+int lttng_opt_verbose;
+int lttng_opt_mi;
+int lttng_opt_quiet;
+
+int main(int argc, const char **argv)
+{
+	int ret;
+	/*
+	 * The event notifier pipes are not "special"; they are created using
+	 * the lttng_pipe utility. Hence, this should be representative of a
+	 * pipe created by the session daemon for event notifier messages to
+	 * go through.
+	 */
+	struct lttng_pipe *pipe = lttng_pipe_open(0);
+
+	if (!pipe) {
+		/* lttng_pipe_open already logs on error. */
+		ret = EXIT_FAILURE;
+		goto end;
+	}
+
+	ret = fcntl(lttng_pipe_get_writefd(pipe), F_GETPIPE_SZ);
+	if (ret < 0) {
+		PERROR("Failed to get the size of the pipe");
+		ret = EXIT_FAILURE;
+		goto end;
+	}
+
+	printf("%d\n", ret);
+	ret = EXIT_SUCCESS;
+end:
+	lttng_pipe_destroy(pipe);
+	return ret;
+}