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https://github.com/chromium/crashpad.git
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75988925f9
This reverts commit 63fd3ae47d2513ef4390c3d8c0dde3fa95152480. SMJobRemove() still performs a 1-second sleep() when its |wait| parameter is true. Radar 18398683 is filed. In the mean time, the launchd-based implementation of these functions does not have this undesirable property. The comments have been revised to not reflect operating systems before Mac OS X 10.6. Comments describing bugs in earlier 10.10 seeds that have since been fixed have been removed. TEST=util_test Launchd.*:ServiceManagement.* R=rsesek@chromium.org Review URL: https://codereview.chromium.org/579083003
140 lines
3.9 KiB
C++
140 lines
3.9 KiB
C++
// Copyright 2014 The Crashpad Authors. All rights reserved.
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//
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// Licensed under the Apache License, Version 2.0 (the "License");
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// you may not use this file except in compliance with the License.
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// You may obtain a copy of the License at
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//
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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// Unless required by applicable law or agreed to in writing, software
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// distributed under the License is distributed on an "AS IS" BASIS,
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// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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// See the License for the specific language governing permissions and
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// limitations under the License.
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#include "util/mac/service_management.h"
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#include <errno.h>
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#include <launch.h>
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#include <time.h>
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#include "base/mac/scoped_launch_data.h"
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#include "util/mac/launchd.h"
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namespace {
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launch_data_t LaunchDataDictionaryForJob(const std::string& label) {
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base::mac::ScopedLaunchData request(
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launch_data_alloc(LAUNCH_DATA_DICTIONARY));
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launch_data_dict_insert(
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request, launch_data_new_string(label.c_str()), LAUNCH_KEY_GETJOB);
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base::mac::ScopedLaunchData response(launch_msg(request));
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if (launch_data_get_type(response) != LAUNCH_DATA_DICTIONARY) {
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return NULL;
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}
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return response.release();
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}
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} // namespace
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namespace crashpad {
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bool ServiceManagementSubmitJob(CFDictionaryRef job_cf) {
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base::mac::ScopedLaunchData job_launch(CFPropertyToLaunchData(job_cf));
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if (!job_launch.get()) {
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return false;
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}
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base::mac::ScopedLaunchData jobs(launch_data_alloc(LAUNCH_DATA_ARRAY));
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launch_data_array_set_index(jobs, job_launch.release(), 0);
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base::mac::ScopedLaunchData request(
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launch_data_alloc(LAUNCH_DATA_DICTIONARY));
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launch_data_dict_insert(request, jobs.release(), LAUNCH_KEY_SUBMITJOB);
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base::mac::ScopedLaunchData response(launch_msg(request));
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if (launch_data_get_type(response) != LAUNCH_DATA_ARRAY) {
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return false;
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}
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if (launch_data_array_get_count(response) != 1) {
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return false;
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}
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launch_data_t response_element = launch_data_array_get_index(response, 0);
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if (launch_data_get_type(response_element) != LAUNCH_DATA_ERRNO) {
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return false;
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}
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int err = launch_data_get_errno(response_element);
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if (err != 0) {
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return false;
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}
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return true;
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}
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bool ServiceManagementRemoveJob(const std::string& label, bool wait) {
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base::mac::ScopedLaunchData request(
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launch_data_alloc(LAUNCH_DATA_DICTIONARY));
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launch_data_dict_insert(
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request, launch_data_new_string(label.c_str()), LAUNCH_KEY_REMOVEJOB);
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base::mac::ScopedLaunchData response(launch_msg(request));
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if (launch_data_get_type(response) != LAUNCH_DATA_ERRNO) {
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return false;
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}
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int err = launch_data_get_errno(response);
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if (err == EINPROGRESS) {
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if (wait) {
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// TODO(mark): Use a kqueue to wait for the process to exit. To avoid a
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// race, the kqueue would need to be set up prior to asking launchd to
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// remove the job. Even so, the job’s PID may change between the time it’s
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// obtained and the time the kqueue is set up, so this is nontrivial.
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do {
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timespec sleep_time;
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sleep_time.tv_sec = 0;
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sleep_time.tv_nsec = 1E5; // 100 microseconds
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nanosleep(&sleep_time, NULL);
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} while (ServiceManagementIsJobLoaded(label));
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}
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return true;
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}
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if (err != 0) {
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return false;
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}
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return true;
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}
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bool ServiceManagementIsJobLoaded(const std::string& label) {
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base::mac::ScopedLaunchData dictionary(LaunchDataDictionaryForJob(label));
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if (!dictionary) {
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return false;
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}
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return true;
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}
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pid_t ServiceManagementIsJobRunning(const std::string& label) {
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base::mac::ScopedLaunchData dictionary(LaunchDataDictionaryForJob(label));
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if (!dictionary) {
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return 0;
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}
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launch_data_t pid = launch_data_dict_lookup(dictionary, LAUNCH_JOBKEY_PID);
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if (launch_data_get_type(pid) != LAUNCH_DATA_INTEGER) {
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return 0;
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}
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return launch_data_get_integer(pid);
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}
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} // namespace crashpad
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