rockbox/firmware/target/hosted/android/system-android.c
Thomas Martitz 046cec3aa7 Android: Partly revert r29569 and only call the new getJavaEnvironment() when needed.
The environment is fine to share in general, just not across OS threads, so it's only needed
for functions which are possibly called from multiple OS threads (only 1 currently).

git-svn-id: svn://svn.rockbox.org/rockbox/trunk@29601 a1c6a512-1295-4272-9138-f99709370657
2011-03-16 14:33:55 +00:00

84 lines
2.3 KiB
C

/***************************************************************************
* __________ __ ___.
* Open \______ \ ____ ____ | | _\_ |__ _______ ___
* Source | _// _ \_/ ___\| |/ /| __ \ / _ \ \/ /
* Jukebox | | ( <_> ) \___| < | \_\ ( <_> > < <
* Firmware |____|_ /\____/ \___ >__|_ \|___ /\____/__/\_ \
* \/ \/ \/ \/ \/
* $Id$
*
* Copyright (c) 2010 Thomas Martitz
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License
* as published by the Free Software Foundation; either version 2
* of the License, or (at your option) any later version.
*
* This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
* KIND, either express or implied.
*
****************************************************************************/
#include <jni.h>
#include "config.h"
#include "system.h"
/* global fields for use with various JNI calls */
static JavaVM *vm_ptr;
JNIEnv *env_ptr;
jobject RockboxService_instance;
jclass RockboxService_class;
uintptr_t *stackbegin;
uintptr_t *stackend;
extern int main(void);
extern void telephony_init_device(void);
void system_exception_wait(void) { }
void system_reboot(void) { }
void power_off(void) { }
void system_init(void)
{
/* no better place yet */
telephony_init_device();
}
JNIEXPORT jint JNICALL
JNI_OnLoad(JavaVM *vm, void* reserved)
{
(void)reserved;
vm_ptr = vm;
return JNI_VERSION_1_2;
}
JNIEnv* getJavaEnvironment(void)
{
JNIEnv* env;
(*vm_ptr)->GetEnv(vm_ptr, (void**) &env, JNI_VERSION_1_2);
return env;
}
/* this is the entry point of the android app initially called by jni */
JNIEXPORT void JNICALL
Java_org_rockbox_RockboxService_main(JNIEnv *env, jobject this)
{
/* hack!!! we can't have a valid stack pointer otherwise.
* but we don't really need it anyway, thread.c only needs it
* for overflow detection which doesn't apply for the main thread
* (it's managed by the OS) */
volatile uintptr_t stack = 0;
stackbegin = stackend = (uintptr_t*) &stack;
env_ptr = env;
RockboxService_instance = this;
RockboxService_class = (*env)->GetObjectClass(env, this);
main();
}