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/*
* Copyright (C) 2005-2013 Team XBMC
* http://xbmc.org
* Some code borrowed from Dmitry Moskalchuk.
*
* Copyright (c) 2011-2012 Dmitry Moskalchuk <dm@crystax.net>.
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without modification, are
* permitted provided that the following conditions are met:
*
* 1. Redistributions of source code must retain the above copyright notice, this list of
* conditions and the following disclaimer.
*
* 2. Redistributions in binary form must reproduce the above copyright notice, this list
* of conditions and the following disclaimer in the documentation and/or other materials
* provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY Dmitry Moskalchuk ''AS IS'' AND ANY EXPRESS OR IMPLIED
* WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND
* FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL Dmitry Moskalchuk OR
* CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
* SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
* ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
* NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
* ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*
* The views and conclusions contained in the software and documentation are those of the
* authors and should not be interpreted as representing official policies, either expressed
* or implied, of Dmitry Moskalchuk.
*/
/*
This code is mostly borrowed from libcrystax. The functions and namespaces
were renamed to avoid collisions when linking against the originals.
*/
#include <jni.h>
#include <pthread.h>
#include <stdlib.h>
#include <android/log.h>
namespace xbmcjni
{
static JavaVM *s_jvm = NULL;
static pthread_key_t s_jnienv_key;
static pthread_once_t s_jnienv_key_once = PTHREAD_ONCE_INIT;
JavaVM *jvm()
{
return s_jvm;
}
static void jnienv_detach_thread(void *arg)
{
(void)arg;
if (!jvm())
return;
__android_log_print(ANDROID_LOG_VERBOSE, "XBMC","detaching thread");
jvm()->DetachCurrentThread();
}
static void jnienv_key_create()
{
if (::pthread_key_create(&s_jnienv_key, &jnienv_detach_thread) != 0)
::abort();
}
static bool save_jnienv(JNIEnv *env)
{
::pthread_once(&s_jnienv_key_once, &jnienv_key_create);
if (::pthread_setspecific(s_jnienv_key, env) != 0)
return false;
return true;
}
JNIEnv *jnienv()
{
::pthread_once(&s_jnienv_key_once, &jnienv_key_create);
JNIEnv *env = reinterpret_cast<JNIEnv *>(::pthread_getspecific(s_jnienv_key));
if (!env && jvm())
{
jvm()->AttachCurrentThread(&env, NULL);
if (!save_jnienv(env))
::abort();
}
return env;
}
} // namespace xbmcjni
JavaVM *xbmc_jvm()
{
return ::xbmcjni::jvm();
}
JNIEnv *xbmc_jnienv()
{
return ::xbmcjni::jnienv();
}
void xbmc_save_jnienv(JNIEnv *env)
{
::xbmcjni::save_jnienv(env);
}
jint xbmc_jni_on_load(JavaVM *vm, JNIEnv *env)
{
jint jversion = JNI_VERSION_1_4;
if (!env)
return -1;
::xbmcjni::s_jvm = vm;
// The main thread hands us an env. Attach and store it.
::xbmcjni::jvm()->AttachCurrentThread(&env, NULL);
if (!::xbmcjni::save_jnienv(env))
return -1;
return jversion;
}
void xbmc_jni_on_unload()
{
::xbmcjni::jnienv_detach_thread(NULL);
::xbmcjni::s_jvm = NULL;
}
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