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#include "NativewindowCommon.h"
static const char * const ClazzNameRuntimeException = "java/lang/RuntimeException";
static jclass runtimeExceptionClz=NULL;
void NativewindowCommon_FatalError(JNIEnv *env, const char* msg, ...)
{
char buffer[512];
va_list ap;
va_start(ap, msg);
vsnprintf(buffer, sizeof(buffer), msg, ap);
va_end(ap);
fprintf(stderr, "%s\n", buffer);
(*env)->FatalError(env, buffer);
}
void NativewindowCommon_throwNewRuntimeException(JNIEnv *env, const char* msg, ...)
{
char buffer[512];
va_list ap;
va_start(ap, msg);
vsnprintf(buffer, sizeof(buffer), msg, ap);
va_end(ap);
(*env)->ThrowNew(env, runtimeExceptionClz, buffer);
}
int NativewindowCommon_init(JNIEnv *env) {
if(NULL==runtimeExceptionClz) {
jclass c = (*env)->FindClass(env, ClazzNameRuntimeException);
if(NULL==c) {
NativewindowCommon_FatalError(env, "Nativewindow: can't find %s", ClazzNameRuntimeException);
}
runtimeExceptionClz = (jclass)(*env)->NewGlobalRef(env, c);
(*env)->DeleteLocalRef(env, c);
if(NULL==runtimeExceptionClz) {
NativewindowCommon_FatalError(env, "Nativewindow: can't use %s", ClazzNameRuntimeException);
}
return 1;
}
return 0;
}
jchar* NativewindowCommon_GetNullTerminatedStringChars(JNIEnv* env, jstring str)
{
jchar* strChars = NULL;
strChars = calloc((*env)->GetStringLength(env, str) + 1, sizeof(jchar));
if (strChars != NULL) {
(*env)->GetStringRegion(env, str, 0, (*env)->GetStringLength(env, str), strChars);
}
return strChars;
}
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