toolkit/xre/nsAndroidStartup.cpp

   1 /* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*-
   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 #include <android/log.h>
   7
   8 #include <jni.h>
   9
  10 #include <stdlib.h>
  11 #include <string.h>
  12 #include <pthread.h>
  13
  14 #include "nsTArray.h"
  15 #include "nsString.h"
  16 #include "nsIFile.h"
  17 #include "nsAppRunner.h"
  18 #include "AndroidBridge.h"
  19 #include "APKOpen.h"
  20 #include "nsExceptionHandler.h"
  21
  22 #define LOG(args...) __android_log_print(ANDROID_LOG_INFO, MOZ_APP_NAME, args)
  23
  24 // We need to put Gecko on a even more separate thread, because
  25 // otherwise this JNI method never returns; this leads to problems
  26 // with local references overrunning the local refs table, among
  27 // other things, since GC can't ever run on them.
  28
  29 // Note that we don't have xpcom initialized yet, so we can't use the
  30 // thread manager for this.  Instead, we use pthreads directly.
  31
  32 struct AutoAttachJavaThread {
  33     AutoAttachJavaThread() {
  34         attached = mozilla_AndroidBridge_SetMainThread(pthread_self());
  35     }
  36     ~AutoAttachJavaThread() {
  37         mozilla_AndroidBridge_SetMainThread(-1);
  38         attached = false;
  39     }
  40
  41     bool attached;
  42 };
  43
  44 extern "C" NS_EXPORT void
  45 GeckoStart(void *data, const nsXREAppData *appData)
  46 {
  47 #ifdef MOZ_CRASHREPORTER
  48     const struct mapping_info *info = getLibraryMapping();
  49     while (info->name) {
  50       CrashReporter::AddLibraryMapping(info->name, info->base,
  51                                        info->len, info->offset);
  52       info++;
  53     }
  54 #endif
  55
  56     AutoAttachJavaThread attacher;
  57     if (!attacher.attached)
  58         return;
  59
  60     if (!data) {
  61         LOG("Failed to get arguments for GeckoStart\n");
  62         return;
  63     }
  64
  65     nsTArray<char *> targs;
  66     char *arg = strtok(static_cast<char *>(data), " ");
  67     while (arg) {
  68         targs.AppendElement(arg);
  69         arg = strtok(nullptr, " ");
  70     }
  71     targs.AppendElement(static_cast<char *>(nullptr));
  72
  73     int result = XRE_main(targs.Length() - 1, targs.Elements(), appData, 0);
  74
  75     if (result)
  76         LOG("XRE_main returned %d", result);
  77
  78     mozilla::widget::android::GeckoAppShell::NotifyXreExit();
  79
  80     free(targs[0]);
  81     nsMemory::Free(data);
  82     return;
  83 }