diff options
Diffstat (limited to 'third_party/waf/waflib/extras/preforkjava.py')
| -rw-r--r-- | third_party/waf/waflib/extras/preforkjava.py | 236 |
1 files changed, 236 insertions, 0 deletions
diff --git a/third_party/waf/waflib/extras/preforkjava.py b/third_party/waf/waflib/extras/preforkjava.py new file mode 100644 index 00000000000..e93461b4da9 --- /dev/null +++ b/third_party/waf/waflib/extras/preforkjava.py @@ -0,0 +1,236 @@ +#! /usr/bin/env python +# encoding: utf-8 +# Thomas Nagy, 2015 (ita) + +# TODO: have the child process terminate if the parent is killed abruptly + +import os, socket, threading, sys, subprocess, time, atexit, random +try: + from queue import Queue +except ImportError: + from Queue import Queue + +import json as pickle + +SHARED_KEY = None +HEADER_SIZE = 64 + +REQ = 'REQ' +RES = 'RES' +BYE = 'BYE' + +def make_header(params, cookie=''): + header = ','.join(params) + header = header.ljust(HEADER_SIZE - len(cookie)) + assert(len(header) == HEADER_SIZE - len(cookie)) + header = header + cookie + if sys.hexversion > 0x3000000: + header = header.encode('iso8859-1') + return header + +if 1: + from waflib import Logs, Utils, Runner, Errors, Options + + def init_task_pool(self): + # lazy creation, and set a common pool for all task consumers + pool = self.pool = [] + for i in range(self.numjobs): + consumer = Runner.get_pool() + pool.append(consumer) + consumer.idx = i + self.ready = Queue(0) + def setq(consumer): + consumer.ready = self.ready + try: + threading.current_thread().idx = consumer.idx + except Exception as e: + print(e) + for x in pool: + x.ready.put(setq) + return pool + Runner.Parallel.init_task_pool = init_task_pool + + def make_server(bld, idx): + top = getattr(bld, 'preforkjava_top', os.path.dirname(os.path.abspath('__file__'))) + cp = getattr(bld, 'preforkjava_cp', os.path.join(top, 'minimal-json-0.9.3-SNAPSHOT.jar') + os.pathsep + top) + + for x in cp.split(os.pathsep): + if x and not os.path.exists(x): + Logs.warn('Invalid classpath: %r' % cp) + Logs.warn('Set for example bld.preforkjava_cp to /path/to/minimal-json:/path/to/Prefork.class/') + + cwd = getattr(bld, 'preforkjava_cwd', top) + port = getattr(bld, 'preforkjava_port', 51200) + cmd = getattr(bld, 'preforkjava_cmd', 'java -cp %s%s Prefork %d' % (cp, os.pathsep, port)) + proc = subprocess.Popen(cmd.split(), shell=False, cwd=cwd) + proc.port = port + return proc + + def make_conn(bld, srv): + #port = PORT + idx + port = srv.port + conn = socket.socket(socket.AF_INET, socket.SOCK_STREAM) + conn.setsockopt(socket.IPPROTO_TCP, socket.TCP_NODELAY, 1) + conn.connect(('127.0.0.1', port)) + return conn + + SERVERS = [] + CONNS = [] + def close_all(): + global SERVERS + while SERVERS: + srv = SERVERS.pop() + #pid = srv.pid + try: + srv.kill() + except Exception: + pass + atexit.register(close_all) + + def put_data(conn, data): + cnt = 0 + while cnt < len(data): + sent = conn.send(data[cnt:]) + if sent == 0: + raise RuntimeError('connection ended') + cnt += sent + + def read_data(conn, siz): + cnt = 0 + buf = [] + while cnt < siz: + data = conn.recv(min(siz - cnt, 1024)) + if not data: + raise RuntimeError('connection ended %r %r' % (cnt, siz)) + buf.append(data) + cnt += len(data) + if sys.hexversion > 0x3000000: + ret = ''.encode('iso8859-1').join(buf) + else: + ret = ''.join(buf) + return ret + + def exec_command(self, cmd, **kw): + if 'stdout' in kw: + if kw['stdout'] not in (None, subprocess.PIPE): + return self.exec_command_old(cmd, **kw) + elif 'stderr' in kw: + if kw['stderr'] not in (None, subprocess.PIPE): + return self.exec_command_old(cmd, **kw) + + kw['shell'] = isinstance(cmd, str) + Logs.debug('runner: %r' % cmd) + Logs.debug('runner_env: kw=%s' % kw) + + if self.logger: + self.logger.info(cmd) + + if 'stdout' not in kw: + kw['stdout'] = subprocess.PIPE + if 'stderr' not in kw: + kw['stderr'] = subprocess.PIPE + + if Logs.verbose and not kw['shell'] and not Utils.check_exe(cmd[0]): + raise Errors.WafError("Program %s not found!" % cmd[0]) + + idx = threading.current_thread().idx + kw['cmd'] = cmd + + data = pickle.dumps(kw) + params = [REQ, str(len(data))] + header = make_header(params, self.SHARED_KEY) + + conn = CONNS[idx] + + if sys.hexversion > 0x3000000: + data = data.encode('iso8859-1') + put_data(conn, header + data) + + data = read_data(conn, HEADER_SIZE) + if sys.hexversion > 0x3000000: + data = data.decode('iso8859-1') + + #print("received %r" % data) + lst = data.split(',') + ret = int(lst[1]) + dlen = int(lst[2]) + + out = err = None + if dlen: + data = read_data(conn, dlen) + (out, err, exc) = pickle.loads(data) + if exc: + raise Errors.WafError('Execution failure: %s' % exc) + + if out: + if not isinstance(out, str): + out = out.decode(sys.stdout.encoding or 'iso8859-1') + if self.logger: + self.logger.debug('out: %s' % out) + else: + Logs.info(out, extra={'stream':sys.stdout, 'c1': ''}) + if err: + if not isinstance(err, str): + err = err.decode(sys.stdout.encoding or 'iso8859-1') + if self.logger: + self.logger.error('err: %s' % err) + else: + Logs.info(err, extra={'stream':sys.stderr, 'c1': ''}) + + return ret + + def init_key(ctx): + try: + key = ctx.SHARED_KEY = os.environ['SHARED_KEY'] + except KeyError: + key = "".join([chr(random.SystemRandom().randint(40, 126)) for x in range(20)]) + os.environ['SHARED_KEY'] = ctx.SHARED_KEY = key + os.environ['PREFORKPID'] = str(os.getpid()) + return key + + def init_servers(ctx, maxval): + while len(SERVERS) < 1: + i = len(SERVERS) + srv = make_server(ctx, i) + SERVERS.append(srv) + while len(CONNS) < maxval: + i = len(CONNS) + srv = SERVERS[0] + conn = None + for x in range(30): + try: + conn = make_conn(ctx, srv) + break + except socket.error: + time.sleep(0.01) + if not conn: + raise ValueError('Could not start the server!') + CONNS.append(conn) + + def init_smp(self): + if not getattr(Options.options, 'smp', getattr(self, 'smp', None)): + return + if Utils.unversioned_sys_platform() in ('freebsd',): + pid = os.getpid() + cmd = ['cpuset', '-l', '0', '-p', str(pid)] + elif Utils.unversioned_sys_platform() in ('linux',): + pid = os.getpid() + cmd = ['taskset', '-pc', '0', str(pid)] + if cmd: + self.cmd_and_log(cmd, quiet=0) + + def options(opt): + opt.add_option('--pin-process', action='store_true', dest='smp', default=False) + init_key(opt) + init_servers(opt, 40) + + def build(bld): + if bld.cmd == 'clean': + return + + init_key(bld) + init_servers(bld, bld.jobs) + init_smp(bld) + + bld.__class__.exec_command_old = bld.__class__.exec_command + bld.__class__.exec_command = exec_command |