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-rwxr-xr-xscripts/oe-build-perf-test23
1 files changed, 23 insertions, 0 deletions
diff --git a/scripts/oe-build-perf-test b/scripts/oe-build-perf-test
index 9dd073cdfb4..64873c90aac 100755
--- a/scripts/oe-build-perf-test
+++ b/scripts/oe-build-perf-test
@@ -15,6 +15,8 @@
#
"""Build performance test script"""
import argparse
+import errno
+import fcntl
import logging
import os
import sys
@@ -33,6 +35,19 @@ logging.basicConfig(level=logging.INFO, format=LOG_FORMAT)
log = logging.getLogger()
+def acquire_lock(lock_f):
+ """Acquire flock on file"""
+ log.debug("Acquiring lock %s", os.path.abspath(lock_f.name))
+ try:
+ fcntl.flock(lock_f, fcntl.LOCK_EX | fcntl.LOCK_NB)
+ except IOError as err:
+ if err.errno == errno.EAGAIN:
+ return False
+ raise
+ log.debug("Lock acquired")
+ return True
+
+
def pre_run_sanity_check():
"""Sanity check of build environment"""
build_dir = os.environ.get("BUILDDIR")
@@ -72,6 +87,9 @@ def parse_args(argv):
help='Enable debug level logging')
parser.add_argument('--globalres-file',
help="Append results to 'globalres' csv file")
+ parser.add_argument('--lock-file', default='./oe-build-perf.lock',
+ metavar='FILENAME',
+ help="Lock file to use")
return parser.parse_args(argv)
@@ -83,6 +101,11 @@ def main(argv=None):
if args.debug:
log.setLevel(logging.DEBUG)
+ lock_f = open(args.lock_file, 'w')
+ if not acquire_lock(lock_f):
+ log.error("Another instance of this script is running, exiting...")
+ return 1
+
if not pre_run_sanity_check():
return 1