ZTS: Use inbuilt monotonic time

Make the test runner try to use the included python monotonic time
function instead of calling librt.

This makes the test runner work on macos where librt wasn't available.

Reviewed-by: Tino Reichardt <[email protected]>
Signed-off-by: Andrew Innes <[email protected]>
Closes #14700 

1 files changed, 17 insertions, 17 deletions

diff --git a/tests/test-runner/bin/test-runner.py.in b/tests/test-runner/bin/test-runner.py.in
index 28276ebc4..c454bf8d7 100755
--- a/tests/test-runner/bin/test-runner.py.in
+++ b/tests/test-runner/bin/test-runner.py.in
@@ -47,25 +47,25 @@ LOG_OUT = 'LOG_OUT'
 LOG_ERR = 'LOG_ERR'
 LOG_FILE_OBJ = None
 
+try:
+    from time import monotonic as monotonic_time
+except ImportError:
+    class timespec(ctypes.Structure):
+        _fields_ = [
+            ('tv_sec', ctypes.c_long),
+            ('tv_nsec', ctypes.c_long)
+        ]
 
-class timespec(ctypes.Structure):
-    _fields_ = [
-        ('tv_sec', ctypes.c_long),
-        ('tv_nsec', ctypes.c_long)
-    ]
-
-
-librt = ctypes.CDLL('librt.so.1', use_errno=True)
-clock_gettime = librt.clock_gettime
-clock_gettime.argtypes = [ctypes.c_int, ctypes.POINTER(timespec)]
-
+    librt = ctypes.CDLL('librt.so.1', use_errno=True)
+    clock_gettime = librt.clock_gettime
+    clock_gettime.argtypes = [ctypes.c_int, ctypes.POINTER(timespec)]
 
-def monotonic_time():
-    t = timespec()
-    if clock_gettime(CLOCK_MONOTONIC, ctypes.pointer(t)) != 0:
-        errno_ = ctypes.get_errno()
-        raise OSError(errno_, os.strerror(errno_))
-    return t.tv_sec + t.tv_nsec * 1e-9
+    def monotonic_time():
+        t = timespec()
+        if clock_gettime(CLOCK_MONOTONIC, ctypes.pointer(t)) != 0:
+            errno_ = ctypes.get_errno()
+            raise OSError(errno_, os.strerror(errno_))
+        return t.tv_sec + t.tv_nsec * 1e-9
 
 
 class Result(object):