diff options
Diffstat (limited to 'ipc/chromium/src/base/process_util_win.cc')
| -rw-r--r-- | ipc/chromium/src/base/process_util_win.cc | 27 |
1 files changed, 27 insertions, 0 deletions
diff --git a/ipc/chromium/src/base/process_util_win.cc b/ipc/chromium/src/base/process_util_win.cc index f22f7216f..fa9b86ace 100644 --- a/ipc/chromium/src/base/process_util_win.cc +++ b/ipc/chromium/src/base/process_util_win.cc @@ -298,6 +298,33 @@ bool LaunchApp(const std::wstring& cmdline, LPPROC_THREAD_ATTRIBUTE_LIST lpAttributeList = NULL; + // setup our handle array first - if we end up with no handles that can + // be inherited we can avoid trying to do the ThreadAttributeList dance... + HANDLE handlesToInherit[2]; + int handleCount = 0; + HANDLE stdOut = ::GetStdHandle(STD_OUTPUT_HANDLE); + HANDLE stdErr = ::GetStdHandle(STD_ERROR_HANDLE); + + if (IsInheritableHandle(stdOut)) + handlesToInherit[handleCount++] = stdOut; + if (stdErr != stdOut && IsInheritableHandle(stdErr)) + handlesToInherit[handleCount++] = stdErr; + + if (handleCount) { + lpAttributeList = CreateThreadAttributeList(handlesToInherit, handleCount); + if (lpAttributeList) { + // it's safe to inherit handles, so arrange for that... + startup_info.cb = sizeof(startup_info_ex); + startup_info.dwFlags |= STARTF_USESTDHANDLES; + startup_info.hStdOutput = stdOut; + startup_info.hStdError = stdErr; + startup_info.hStdInput = INVALID_HANDLE_VALUE; + startup_info_ex.lpAttributeList = lpAttributeList; + dwCreationFlags |= EXTENDED_STARTUPINFO_PRESENT; + bInheritHandles = TRUE; + } + } + PROCESS_INFORMATION process_info; BOOL createdOK = CreateProcess(NULL, const_cast<wchar_t*>(cmdline.c_str()), NULL, NULL, |