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Android: Partly revert r29569 and only call the new getJavaEnvironment() when needed.

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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
This commit is contained in:
Thomas Martitz 2011-03-16 14:33:55 +00:00
parent efa9f13500
commit 046cec3aa7
10 changed files with 50 additions and 55 deletions
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24
firmware/target/hosted/android/system-target.h
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@ -21,8 +21,6 @@
#ifndef __SYSTEM_TARGET_H__
#define __SYSTEM_TARGET_H__
#include <jni.h>
#define disable_irq()
#define enable_irq()
#define disable_irq_save() 0
@ -32,19 +30,15 @@ void power_off(void);
void wait_for_interrupt(void);
void interrupt(void);
/* A JNI environment is specific to its thread, so use the correct way to
* obtain it: share a pointer to the JavaVM structure and ask that the JNI
* environment attached to the current thread. */
static inline JNIEnv* getJavaEnvironment(void)
{
extern JavaVM *vm_ptr;
JNIEnv *env = NULL;
if (vm_ptr)
(*vm_ptr)->GetEnv(vm_ptr, (void**) &env, JNI_VERSION_1_2);
return env;
}
/* don't pull in jni.h for every user of this file, it should be only needed
* within the target tree (if at all)
* define this before #including system.h or system-target.h */
#ifdef _SYSTEM_WITH_JNI
#include <jni.h>
/*
* discover the JNIEnv for this the calling thread in case it's not known */
extern JNIEnv* getJavaEnvironment(void);
#endif /* _SYSTEM_WITH_JNI */
#endif /* __SYSTEM_TARGET_H__ */