import FIREFOX_52_6_0esr_RELEASE from mozilla-esr52 hg repo

testing/mozharness/mozprocess/pid.py

@@ -0,0 +1,88 @@
+#!/usr/bin/env python
+
+# 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/.
+
+import os
+import mozinfo
+import shlex
+import subprocess
+import sys
+
+# determine the platform-specific invocation of `ps`
+if mozinfo.isMac:
+    psarg = '-Acj'
+elif mozinfo.isLinux:
+    psarg = 'axwww'
+else:
+    psarg = 'ax'
+
+def ps(arg=psarg):
+    """
+    python front-end to `ps`
+    http://en.wikipedia.org/wiki/Ps_%28Unix%29
+    returns a list of process dicts based on the `ps` header
+    """
+    retval = []
+    process = subprocess.Popen(['ps', arg], stdout=subprocess.PIPE)
+    stdout, _ = process.communicate()
+    header = None
+    for line in stdout.splitlines():
+        line = line.strip()
+        if header is None:
+            # first line is the header
+            header = line.split()
+            continue
+        split = line.split(None, len(header)-1)
+        process_dict = dict(zip(header, split))
+        retval.append(process_dict)
+    return retval
+
+def running_processes(name, psarg=psarg, defunct=True):
+    """
+    returns a list of
+    {'PID': PID of process (int)
+     'command': command line of process (list)}
+     with the executable named `name`.
+     - defunct: whether to return defunct processes
+    """
+    retval = []
+    for process in ps(psarg):
+        # Support for both BSD and UNIX syntax
+        # `ps aux` returns COMMAND, `ps -ef` returns CMD
+        try:
+            command = process['COMMAND']
+        except KeyError:
+            command = process['CMD']
+
+        command = shlex.split(command)
+        if command[-1] == '<defunct>':
+            command = command[:-1]
+            if not command or not defunct:
+                continue
+        if 'STAT' in process and not defunct:
+            if process['STAT'] == 'Z+':
+                continue
+        prog = command[0]
+        basename = os.path.basename(prog)
+        if basename == name:
+            retval.append((int(process['PID']), command))
+    return retval
+
+def get_pids(name):
+    """Get all the pids matching name"""
+
+    if mozinfo.isWin:
+        # use the windows-specific implementation
+        import wpk
+        return wpk.get_pids(name)
+    else:
+        return [pid for pid,_ in running_processes(name)]
+
+if __name__ == '__main__':
+    pids = set()
+    for i in sys.argv[1:]:
+        pids.update(get_pids(i))
+    for i in sorted(pids):
+        print i