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waf/playground/parallel_cmd/wscript
2017-02-11 15:04:25 +01:00

83 lines
1.9 KiB
Python

#! /usr/bin/env python
# encoding: utf-8
VERSION='0.0.1'
APPNAME='cc_test'
top = '.'
out = 'build'
"""
Call "waf build_all_at_once"
The commands will be executed in parallel, but the processes
will be limited by a bounded semaphore to avoid excessive usage.
"""
def options(opt):
opt.load('compiler_c')
def configure(conf):
conf.setenv('debug')
conf.load('compiler_c')
conf.env.DEFINES = ["A=1"]
conf.setenv('release', env=conf.env.derive())
conf.env.CFLAGS = ['-O2']
conf.env.DEFINES = ["A=2"]
def build(bld):
if not bld.variant:
bld.fatal('call "waf build_debug" or "waf build_release", and try "waf --help"')
bld.program(source='main.c', target='app', includes='.')
from waflib.Build import BuildContext, CleanContext, InstallContext, UninstallContext
for x in 'debug release'.split():
for y in (BuildContext, CleanContext, InstallContext, UninstallContext):
name = y.__name__.replace('Context','').lower()
class tmp(y):
cmd = name + '_' + x
variant = x
def buildall(ctx):
import waflib.Options
waflib.Options.commands.extend(['build_debug', 'build_release'])
# The following defines a command which builds all the variants at once
from waflib import Build, Task, Options, Utils, Scripting
Scripting.default_cmd = "build_all_at_once"
class buildall_ctx(Build.BuildContext):
cmd = fun = "build_all_at_once"
variant = ""
def compile(self): pass
def build_all_at_once(ctx):
sem = Utils.threading.Semaphore(Options.options.jobs)
def with_sem(f):
def f2(self):
sem.acquire()
f(self)
sem.release()
return f2
Task.Task.process = with_sem(Task.Task.process)
threads = []
for var in ctx.all_envs:
if var == '': continue
cls = type(Build.BuildContext)(var, (Build.BuildContext,), {'cmd': var, 'variant': var})
bld = cls(top_dir=ctx.top_dir, out_dir=ctx.out_dir)
bld.targets = ctx.targets
t = Utils.threading.Thread()
t.run = bld.execute
threads.append(t)
for t in threads: t.start()
for t in threads: t.join()