/*
* Copyright ( C ) 2019 The Android Open Source Project
* All rights reserved .
*
* Redistribution and use in source and binary forms , with or without
* modification , are permitted provided that the following conditions
* are met :
* * Redistributions of source code must retain the above copyright
* notice , this list of conditions and the following disclaimer .
* * Redistributions in binary form must reproduce the above copyright
* notice , this list of conditions and the following disclaimer in
* the documentation and / or other materials provided with the
* distribution .
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
* " AS IS " AND ANY EXPRESS OR IMPLIED WARRANTIES , INCLUDING , BUT NOT
* LIMITED TO , THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
* FOR A PARTICULAR PURPOSE ARE DISCLAIMED . IN NO EVENT SHALL THE
* COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT , INDIRECT ,
* INCIDENTAL , SPECIAL , EXEMPLARY , OR CONSEQUENTIAL DAMAGES ( INCLUDING ,
* BUT NOT LIMITED TO , PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES ; LOSS
* OF USE , DATA , OR PROFITS ; OR BUSINESS INTERRUPTION ) HOWEVER CAUSED
* AND ON ANY THEORY OF LIABILITY , WHETHER IN CONTRACT , STRICT LIABILITY ,
* OR TORT ( INCLUDING NEGLIGENCE OR OTHERWISE ) ARISING IN ANY WAY OUT
* OF THE USE OF THIS SOFTWARE , EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE .
*/
#include "spawn_benchmark.h"
#include <errno.h>
#include <spawn.h>
#include <string.h>
#include <sys/types.h>
#include <sys/wait.h>
#include <android-base/stringprintf.h>
extern char ** environ;
void BM_spawn_test(benchmark::State& state, const char * const * argv) {
for (auto _ : state) {
pid_t child = 0 ;
if (int spawn_err = posix_spawn(&child, argv[0 ], nullptr, nullptr, const_cast <char **>(argv),
environ)) {
state.SkipWithError(android::base::StringPrintf(
"posix_spawn of %s failed: %s" , argv[0 ], strerror(spawn_err)).c_str());
break ;
}
int wstatus = 0 ;
const pid_t wait_result = TEMP_FAILURE_RETRY(waitpid(child, &wstatus, 0 ));
if (wait_result != child) {
state.SkipWithError(android::base::StringPrintf(
"waitpid on pid %d for %s failed: %m" , static_cast <int >(child), argv[0 ]).c_str());
break ;
}
if (WIFEXITED(wstatus) && WEXITSTATUS(wstatus) == 127 ) {
state.SkipWithError(android::base::StringPrintf("could not exec %s" , argv[0 ]).c_str());
break ;
}
}
}
Messung V0.5 in Prozent C=84 H=98 G=91
¤ Dauer der Verarbeitung: 0.1 Sekunden
(vorverarbeitet am 2026-06-28)
¤
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