+import signal
+import hashlib
+
def line_count(file_path):
line_count = 0
with open(file_path) as f:
for line in f:
line_count += 1
return line_count
+
+
+def sha256_checksum(filename, block_size=65536):
+ sha256 = hashlib.sha256()
+ with open(filename, 'rb') as f:
+ for block in iter(lambda: f.read(block_size), b''):
+ sha256.update(block)
+ return sha256.hexdigest()
+
+
+def __dummy_sigusr1_handler():
+ pass
+
+
+def sessiond_spawn(runtime):
+ previous_handler = signal.signal(signal.SIGUSR1, __dummy_sigusr1_handler)
+ sessiond = runtime.spawn_subprocess("lttng-sessiond -vvv -S")
+ signal.sigtimedwait({signal.SIGUSR1}, 60)
+ previous_handler = signal.signal(signal.SIGUSR1, previous_handler)
+ return sessiond
+
+
+