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Redirect relaunch process's stdout to /dev/null

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This commit is contained in:
Cheng Zhao 2016-07-18 08:46:01 -06:00
parent 08491e1ceb
commit 2ed733fedc
1 changed files with 8 additions and 0 deletions
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8
atom/browser/relauncher_mac.cc
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@ -79,8 +79,16 @@ void RelauncherSynchronizeWithParent() {
int LaunchProgram(const StringVector& relauncher_args,
const StringVector& argv) {
// Redirect the stdout of child process to /dev/null, otherwise after
// relaunch the child process will raise exception when writing to stdout.
base::ScopedFD devnull(HANDLE_EINTR(open("/dev/null", O_WRONLY)));
base::FileHandleMappingVector no_stdout;
no_stdout.push_back(std::make_pair(devnull.get(), STDERR_FILENO));
no_stdout.push_back(std::make_pair(devnull.get(), STDOUT_FILENO));
base::LaunchOptions options;
options.new_process_group = true; // detach
options.fds_to_remap = &no_stdout;
base::Process process = base::LaunchProcess(argv, options);
return process.IsValid() ? 0 : 1;
}