Add stdout flushing to some tools (#2110)
* add stdout flushing to some tools
* change printb import source in opensnoop tool
diff --git a/tools/opensnoop.py b/tools/opensnoop.py
index 1a68f69..d8d06d1 100755
--- a/tools/opensnoop.py
+++ b/tools/opensnoop.py
@@ -16,6 +16,7 @@
from __future__ import print_function
from bcc import ArgString, BPF
+from bcc.utils import printb
import argparse
import ctypes as ct
from datetime import datetime, timedelta
@@ -222,7 +223,7 @@
if args.extended_fields:
print("%08o " % event.flags, end="")
- print(event.fname.decode('utf-8', 'replace'))
+ printb(b'%s' % event.fname.decode('utf-8', 'replace'))
# loop with callback to print_event
b["events"].open_perf_buffer(print_event, page_cnt=64)
