gecko-dev/build/link.py

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2012-05-21 11:12:37 +00:00
# This Source Code Form is subject to the terms of the Mozilla Public
# License, v. 2.0. If a copy of the MPL was not distributed with this
# file, You can obtain one at http://mozilla.org/MPL/2.0/.
from __future__ import with_statement
import os, subprocess, sys, threading, time
from win32 import procmem
def measure_vsize_threadfunc(proc, output_file):
"""
Measure the virtual memory usage of |proc| at regular intervals
until it exits, then print the maximum value and write it to
|output_file|.
"""
maxvsize = 0
while proc.returncode is None:
maxvsize, vsize = procmem.get_vmsize(proc._handle)
time.sleep(0.5)
print "TinderboxPrint: linker max vsize: %d" % maxvsize
with open(output_file, "w") as f:
f.write("%d\n" % maxvsize)
def measure_link_vsize(output_file, args):
"""
Execute |args|, and measure the maximum virtual memory usage of the process,
printing it to stdout when finished.
"""
proc = subprocess.Popen(args)
t = threading.Thread(target=measure_vsize_threadfunc,
args=(proc, output_file))
t.start()
# Wait for the linker to finish.
exitcode = proc.wait()
# ...and then wait for the background thread to finish.
t.join()
return exitcode
if __name__ == "__main__":
if sys.platform != "win32":
print >>sys.stderr, "link.py is only for use on Windows!"
sys.exit(1)
if len(sys.argv) < 3:
print >>sys.stderr, "Usage: link.py <output filename> <commandline>"
sys.exit(1)
sys.exit(measure_link_vsize(sys.argv[1], sys.argv[2:]))