webrtc/api/test/androidtestinitializer.cc

/*
 * libjingle
 * Copyright 2015 Google Inc.
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 * Redistribution and use in source and binary forms, with or without
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 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED
 * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
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#include "webrtc/api/test/androidtestinitializer.h"

#include <pthread.h>

// Note: this dependency is dangerous since it reaches into Chromium's base.
// There's a risk of e.g. macro clashes. This file may only be used in tests.
// Since we use Chromes build system for creating the gtest binary, this should
// be fine.
#include "base/android/context_utils.h"
#include "base/android/jni_android.h"

#include "webrtc/api/java/jni/classreferenceholder.h"
#include "webrtc/api/java/jni/jni_helpers.h"
#include "webrtc/base/checks.h"
#include "webrtc/base/ssladapter.h"
#include "webrtc/voice_engine/include/voe_base.h"

namespace webrtc {

namespace {

static pthread_once_t g_initialize_once = PTHREAD_ONCE_INIT;

// There can only be one JNI_OnLoad in each binary. So since this is a GTEST
// C++ runner binary, we want to initialize the same global objects we normally
// do if this had been a Java binary.
void EnsureInitializedOnce() {
  RTC_CHECK(::base::android::IsVMInitialized());
  JNIEnv* jni = ::base::android::AttachCurrentThread();
  JavaVM* jvm = NULL;
  RTC_CHECK_EQ(0, jni->GetJavaVM(&jvm));
  jobject context = ::base::android::GetApplicationContext();

  RTC_CHECK_GE(webrtc_jni::InitGlobalJniVariables(jvm), 0);
  RTC_CHECK(rtc::InitializeSSL()) << "Failed to InitializeSSL()";
  webrtc_jni::LoadGlobalClassReferenceHolder();

  webrtc::VoiceEngine::SetAndroidObjects(jvm, context);
}

}  // anonymous namespace

void InitializeAndroidObjects() {
  RTC_CHECK_EQ(0, pthread_once(&g_initialize_once, &EnsureInitializedOnce));
}

}  // namespace webrtc