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// Copyright 2014 The Chromium Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#include "base/android/library_loader/library_loader_hooks.h"
#include "base/android/jni_string.h"
#include "base/at_exit.h"
#include "base/metrics/histogram.h"
#include "jni/LibraryLoader_jni.h"
namespace base {
namespace android {
namespace {
base::AtExitManager* g_at_exit_manager = NULL;
const char* g_library_version_number = "";
LibraryLoadedHook* g_registration_callback = NULL;
} // namespace
void SetLibraryLoadedHook(LibraryLoadedHook* func) {
g_registration_callback = func;
}
static jboolean LibraryLoaded(JNIEnv* env, jclass clazz,
jobjectArray init_command_line) {
if(g_registration_callback == NULL) {
return true;
}
return g_registration_callback(env, clazz, init_command_line);
}
static void RecordChromiumAndroidLinkerHistogram(
JNIEnv* env,
jclass clazz,
jboolean loaded_at_fixed_address_failed,
jboolean is_low_memory_device) {
UMA_HISTOGRAM_BOOLEAN("ChromiumAndroidLinker.LoadedAtFixedAddressFailed",
loaded_at_fixed_address_failed);
UMA_HISTOGRAM_BOOLEAN("ChromiumAndroidLinker.IsLowMemoryDevice",
is_low_memory_device);
}
void LibraryLoaderExitHook() {
if (g_at_exit_manager) {
delete g_at_exit_manager;
g_at_exit_manager = NULL;
}
}
bool RegisterLibraryLoaderEntryHook(JNIEnv* env) {
// We need the AtExitManager to be created at the very beginning.
g_at_exit_manager = new base::AtExitManager();
return RegisterNativesImpl(env);
}
void SetVersionNumber(const char* version_number) {
g_library_version_number = strdup(version_number);
}
jstring GetVersionNumber(JNIEnv* env, jclass clazz) {
return ConvertUTF8ToJavaString(env, g_library_version_number).Release();
}
static void RecordNativeLibraryHack(JNIEnv*, jclass, jboolean usedHack) {
UMA_HISTOGRAM_BOOLEAN("LibraryLoader.NativeLibraryHack", usedHack);
}
} // namespace android
} // namespace base
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