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Android: use pthread_once for creating thread key 'mThreadKey'

This commit is contained in:
Sylvain Becker 2019-01-11 15:27:53 +01:00
parent 9a98e5afe1
commit 9d82f4e985
1 changed files with 23 additions and 5 deletions
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28
src/core/android/SDL_android.c
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@ -225,7 +225,8 @@ static void checkJNIReady(void);
Globals
*******************************************************************************/
static pthread_key_t mThreadKey;
static JavaVM *mJavaVM;
static pthread_once_t key_once = PTHREAD_ONCE_INIT;
static JavaVM *mJavaVM = NULL;
/* Main activity */
static jclass mActivityClass;
@ -299,6 +300,24 @@ static void Android_JNI_SetEnv(JNIEnv *env);
Functions called by JNI
*******************************************************************************/
static void
Android_JNI_CreateKey()
{
int status = pthread_key_create(&mThreadKey, Android_JNI_ThreadDestroyed);
if (status < 0) {
__android_log_print(ANDROID_LOG_ERROR, "SDL", "Error initializing mThreadKey with pthread_key_create() (err=%d)", status);
}
}
static void
Android_JNI_CreateKey_once()
{
int status = pthread_once(&key_once, Android_JNI_CreateKey);
if (status < 0) {
__android_log_print(ANDROID_LOG_ERROR, "SDL", "Error initializing mThreadKey with pthread_once() (err=%d)", status);
}
}
/* Library init */
JNIEXPORT jint JNICALL JNI_OnLoad(JavaVM *vm, void *reserved)
{
@ -313,9 +332,8 @@ JNIEXPORT jint JNICALL JNI_OnLoad(JavaVM *vm, void *reserved)
* Create mThreadKey so we can keep track of the JNIEnv assigned to each thread
* Refer to http://developer.android.com/guide/practices/design/jni.html for the rationale behind this
*/
if (pthread_key_create(&mThreadKey, Android_JNI_ThreadDestroyed) != 0) {
__android_log_print(ANDROID_LOG_ERROR, "SDL", "Error initializing pthread key");
}
Android_JNI_CreateKey_once();
Android_JNI_SetupThread();
return JNI_VERSION_1_4;
@ -344,7 +362,7 @@ JNIEXPORT void JNICALL SDL_JAVA_INTERFACE(nativeSetupJNI)(JNIEnv *mEnv, jclass c
}
if (Android_ActivityMutex == NULL) {
__android_log_print(ANDROID_LOG_VERBOSE, "SDL", "failed to create Android_ActivityMutex mutex");
__android_log_print(ANDROID_LOG_ERROR, "SDL", "failed to create Android_ActivityMutex mutex");
}
Android_JNI_SetupThread();