mozglue/tests/TestTimeStampWin.cpp

   1 /* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
   2 /* vim: set ts=8 sts=2 et sw=2 tw=80: */
   3 /* This Source Code Form is subject to the terms of the Mozilla Public
   4  * License, v. 2.0. If a copy of the MPL was not distributed with this
   5  * file, You can obtain one at https://mozilla.org/MPL/2.0/. */
   6
   7 #include "mozilla/CmdLineAndEnvUtils.h"
   8 #include "mozilla/TimeStamp.h"
   9
  10 #include "nsWindowsHelpers.h"
  11
  12 #include <stdio.h>
  13 #include <windows.h>
  14
  15 static wchar_t kChildArg[] = L"--child";
  16
  17 static nsReturnRef<HANDLE> CreateProcessWrapper(const wchar_t* aPath) {
  18   nsAutoHandle empty;
  19
  20   const wchar_t* childArgv[] = {aPath, kChildArg};
  21   mozilla::UniquePtr<wchar_t[]> cmdLine(
  22       mozilla::MakeCommandLine(mozilla::ArrayLength(childArgv), childArgv));
  23
  24   STARTUPINFOW si = {sizeof(si)};
  25   PROCESS_INFORMATION pi;
  26   BOOL ok = ::CreateProcessW(aPath, cmdLine.get(), nullptr, nullptr, FALSE, 0,
  27                              nullptr, nullptr, &si, &pi);
  28   if (!ok) {
  29     printf(
  30         "TEST-FAILED | TimeStampWin | "
  31         "CreateProcess failed - %08lx\n",
  32         GetLastError());
  33     return empty.out();
  34   }
  35
  36   nsAutoHandle proc(pi.hProcess);
  37   nsAutoHandle thd(pi.hThread);
  38
  39   return proc.out();
  40 }
  41
  42 int ChildMain() {
  43   // Make sure a process creation timestamp is always not bigger than
  44   // the current timestamp.
  45   auto t0 = mozilla::TimeStamp::ProcessCreation();
  46   auto t1 = mozilla::TimeStamp::Now();
  47   if (t0 > t1) {
  48     printf(
  49         "TEST-FAILED | TimeStampWin | "
  50         "Process creation timestamp is bigger than the current "
  51         "timestamp!\n");
  52     return 1;
  53   }
  54   return 0;
  55 }
  56
  57 int wmain(int argc, wchar_t* argv[]) {
  58   if (argc == 2 && wcscmp(argv[1], kChildArg) == 0) {
  59     return ChildMain();
  60   }
  61
  62   if (argc != 1) {
  63     printf(
  64         "TEST-FAILED | TimeStampWin | "
  65         "Unexpected argc\n");
  66     return 1;
  67   }
  68
  69   // Start a child process successively, checking any of them terminates with
  70   // a non-zero value which means an error.
  71   for (int i = 0; i < 20; ++i) {
  72     nsAutoHandle childProc(CreateProcessWrapper(argv[0]));
  73
  74     if (::WaitForSingleObject(childProc, 60000) != WAIT_OBJECT_0) {
  75       printf(
  76           "TEST-FAILED | TimeStampWin | "
  77           "Unexpected result from WaitForSingleObject\n");
  78       return 1;
  79     }
  80
  81     DWORD childExitCode;
  82     if (!::GetExitCodeProcess(childProc.get(), &childExitCode)) {
  83       printf(
  84           "TEST-FAILED | TimeStampWin | "
  85           "GetExitCodeProcess failed - %08lx\n",
  86           GetLastError());
  87       return 1;
  88     }
  89
  90     if (childExitCode != 0) {
  91       return childExitCode;
  92     }
  93   }
  94
  95   return 0;
  96 }