toolkit/xre/nsAppRunner.h

   1 /* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
   2 /* This Source Code Form is subject to the terms of the Mozilla Public
   3  * License, v. 2.0. If a copy of the MPL was not distributed with this
   4  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
   5
   6 #ifndef nsAppRunner_h__
   7 #define nsAppRunner_h__
   8
   9 #ifdef XP_WIN
  10 #  include <windows.h>
  11 #  include "mozilla/WindowsConsole.h"
  12 #else
  13 #  include <limits.h>
  14 #endif
  15
  16 #ifndef MAXPATHLEN
  17 #  ifdef PATH_MAX
  18 #    define MAXPATHLEN PATH_MAX
  19 #  elif defined(_MAX_PATH)
  20 #    define MAXPATHLEN _MAX_PATH
  21 #  elif defined(CCHMAXPATH)
  22 #    define MAXPATHLEN CCHMAXPATH
  23 #  else
  24 #    define MAXPATHLEN 1024
  25 #  endif
  26 #endif
  27
  28 #include "nsCOMPtr.h"
  29 #include "nsStringFwd.h"
  30 #include "nsXULAppAPI.h"
  31
  32 class nsINativeAppSupport;
  33 class nsXREDirProvider;
  34 class nsIToolkitProfileService;
  35 class nsIFile;
  36 class nsIProfileLock;
  37 class nsIProfileUnlocker;
  38 class nsIFactory;
  39
  40 extern nsXREDirProvider* gDirServiceProvider;
  41
  42 // NOTE: gAppData will be null in embedded contexts.
  43 extern const mozilla::XREAppData* gAppData;
  44 extern bool gSafeMode;
  45 extern bool gFxREmbedded;
  46
  47 extern int gArgc;
  48 extern char** gArgv;
  49 extern int gRestartArgc;
  50 extern char** gRestartArgv;
  51 extern bool gRestartedByOS;
  52 extern bool gLogConsoleErrors;
  53 extern nsString gAbsoluteArgv0Path;
  54
  55 extern bool gIsGtest;
  56
  57 namespace mozilla {
  58 nsresult AppInfoConstructor(const nsID& aIID, void** aResult);
  59 }  // namespace mozilla
  60
  61 // Exported for gtests.
  62 void BuildCompatVersion(const char* aAppVersion, const char* aAppBuildID,
  63                         const char* aToolkitBuildID, nsACString& aBuf);
  64
  65 /**
  66  * Compares the provided compatibility versions. Returns 0 if they match,
  67  * < 0 if the new version is considered an upgrade from the old version and
  68  * > 0 if the new version is considered a downgrade from the old version.
  69  */
  70 int32_t CompareCompatVersions(const nsACString& aOldCompatVersion,
  71                               const nsACString& aNewCompatVersion);
  72
  73 /**
  74  * Create the nativeappsupport implementation.
  75  *
  76  * @note XPCOMInit has not happened yet.
  77  */
  78 nsresult NS_CreateNativeAppSupport(nsINativeAppSupport** aResult);
  79 already_AddRefed<nsINativeAppSupport> NS_GetNativeAppSupport();
  80
  81 /**
  82  * Try to acquire exclusive access to the specified profile directory.
  83  *
  84  * @param aPath
  85  *        The profile directory to lock.
  86  * @param aTempPath
  87  *        The corresponding profile temporary directory.
  88  * @param aUnlocker
  89  *        A callback interface used to attempt to unlock a profile that
  90  *        appears to be locked.
  91  * @param aResult
  92  *        The resulting profile lock object (or null if the profile could
  93  *        not be locked).
  94  *
  95  * @return NS_ERROR_FILE_ACCESS_DENIED to indicate that the profile
  96  *         directory cannot be unlocked.
  97  */
  98 nsresult NS_LockProfilePath(nsIFile* aPath, nsIFile* aTempPath,
  99                             nsIProfileUnlocker** aUnlocker,
 100                             nsIProfileLock** aResult);
 101
 102 void WriteConsoleLog();
 103
 104 void OverrideDefaultLocaleIfNeeded();
 105
 106 /**
 107  * Allow exit() calls to complete. This should be done from a proper Gecko
 108  * shutdown path. Otherwise we aim to catch improper shutdowns.
 109  */
 110 void MozExpectedExit();
 111
 112 class nsINativeAppSupport;
 113
 114 // If aBlankCommandLine is true, then the application will be launched with a
 115 // blank command line instead of being launched with the same command line that
 116 // it was initially started with.
 117 // If aTryExec is true then we use exec on platforms that support it to
 118 // remain in the foreground.
 119 nsresult LaunchChild(bool aBlankCommandLine, bool aTryExec = false);
 120
 121 void UnlockProfile();
 122
 123 #ifdef XP_WIN
 124
 125 BOOL WinLaunchChild(const wchar_t* exePath, int argc, char** argv,
 126                     HANDLE userToken = nullptr, HANDLE* hProcess = nullptr);
 127
 128 #  define PREF_WIN_REGISTER_APPLICATION_RESTART \
 129     "toolkit.winRegisterApplicationRestart"
 130
 131 #  define PREF_WIN_ALTERED_DLL_PREFETCH "startup.experiments.alteredDllPrefetch"
 132
 133 #  if defined(MOZ_LAUNCHER_PROCESS)
 134 #    define PREF_WIN_LAUNCHER_PROCESS_ENABLED "browser.launcherProcess.enabled"
 135 #  endif  // defined(MOZ_LAUNCHER_PROCESS)
 136 #endif
 137
 138 namespace mozilla {
 139 namespace startup {
 140 Result<nsCOMPtr<nsIFile>, nsresult> GetIncompleteStartupFile(nsIFile* aProfLD);
 141
 142 void IncreaseDescriptorLimits();
 143 }  // namespace startup
 144
 145 const char* PlatformBuildID();
 146
 147 bool RunningGTest();
 148
 149 }  // namespace mozilla
 150
 151 /**
 152  * Set up platform specific error handling such as suppressing DLL load dialog
 153  * and the JIT debugger on Windows, and install unix signal handlers.
 154  */
 155 void SetupErrorHandling(const char* progname);
 156
 157 #ifdef MOZ_ASAN_REPORTER
 158 extern "C" {
 159 void MOZ_EXPORT __sanitizer_set_report_path(const char* path);
 160 }
 161 void setASanReporterPath(nsIFile* aDir);
 162 #endif
 163
 164 #ifdef MOZ_WAYLAND
 165 bool IsWaylandEnabled();
 166 #endif
 167
 168 #endif  // nsAppRunner_h__