mirror of
https://gitlab.com/ita1024/waf.git
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56 lines
1.3 KiB
Plaintext
56 lines
1.3 KiB
Plaintext
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#! /usr/bin/env python
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"""
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Create a few c programs, measure the execution times on "waf times"
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"""
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def options(opt):
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opt.load('compiler_c')
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def configure(conf):
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conf.load('compiler_c')
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def build(bld):
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# add a task to create a .c file
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from waflib.TaskGen import feature, before_method
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@feature('foo')
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@before_method('process_source')
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def add_one_c_file(self):
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node = self.path.find_or_declare('main%d.c' % self.num)
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self.create_task('write_file', [], node)
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self.source = [node] # add the .c file to the list of source
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# write a slow main.c file
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from waflib.Task import Task
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class write_file(Task):
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def run(self):
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self.outputs[0].write('''
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#include <stdio.h>
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int main() {
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int i;
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char buf[50];
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for (i=0; i < %d; ++i) {
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sprintf(buf, "%%l\\n", i);
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}
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return 0;
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}''' % 2 ** (13 + self.generator.num))
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for i in range(10):
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# create a few programs
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bld(features='foo c cprogram', num=i, target='app%d' % i)
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if bld.cmd == 'times':
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# measure the execution times when calling "waf times"
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def measure(ctx):
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for x in range(10):
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tg = ctx.get_tgen_by_name('app%d' % x)
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name = tg.link_task.outputs[0].abspath()
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ctx.exec_command('time %s' % name, shell=True)
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bld.add_post_fun(measure)
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from waflib.Build import BuildContext
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class times(BuildContext):
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cmd = 'times'
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