370
371 #ifdef ASSERT
372 {
373 ResourceMark rm;
374 const char* expected = symbol->as_utf8();
375 char* actual = as_utf8_string(h_obj());
376 if (strncmp(expected, actual, utf8_len) != 0) {
377 tty->print_cr("Symbol conversion failure: %s --> %s", expected, actual);
378 ShouldNotReachHere();
379 }
380 }
381 #endif
382
383 return h_obj;
384 }
385
386 // Converts a C string to a Java String based on current encoding
387 Handle java_lang_String::create_from_platform_dependent_str(const char* str, TRAPS) {
388 assert(str != NULL, "bad arguments");
389
390 typedef jstring (*to_java_string_fn_t)(JNIEnv*, const char *);
391 static to_java_string_fn_t _to_java_string_fn = NULL;
392
393 if (_to_java_string_fn == NULL) {
394 void *lib_handle = os::native_java_library();
395 _to_java_string_fn = CAST_TO_FN_PTR(to_java_string_fn_t, os::dll_lookup(lib_handle, "NewStringPlatform"));
396 if (_to_java_string_fn == NULL) {
397 fatal("NewStringPlatform missing");
398 }
399 }
400
401 jstring js = NULL;
402 {
403 assert(THREAD->is_Java_thread(), "must be java thread");
404 JavaThread* thread = (JavaThread*)THREAD;
405 HandleMark hm(thread);
406 ThreadToNativeFromVM ttn(thread);
407 js = (_to_java_string_fn)(thread->jni_environment(), str);
408 }
409
410 Handle native_platform_string(THREAD, JNIHandles::resolve(js));
411 JNIHandles::destroy_local(js); // destroy local JNIHandle.
412 return native_platform_string;
413 }
414
415 // Converts a Java String to a native C string that can be used for
416 // native OS calls.
417 char* java_lang_String::as_platform_dependent_str(Handle java_string, TRAPS) {
|
370
371 #ifdef ASSERT
372 {
373 ResourceMark rm;
374 const char* expected = symbol->as_utf8();
375 char* actual = as_utf8_string(h_obj());
376 if (strncmp(expected, actual, utf8_len) != 0) {
377 tty->print_cr("Symbol conversion failure: %s --> %s", expected, actual);
378 ShouldNotReachHere();
379 }
380 }
381 #endif
382
383 return h_obj;
384 }
385
386 // Converts a C string to a Java String based on current encoding
387 Handle java_lang_String::create_from_platform_dependent_str(const char* str, TRAPS) {
388 assert(str != NULL, "bad arguments");
389
390 typedef jstring (JNICALL *to_java_string_fn_t)(JNIEnv*, const char *);
391 static to_java_string_fn_t _to_java_string_fn = NULL;
392
393 if (_to_java_string_fn == NULL) {
394 void *lib_handle = os::native_java_library();
395 _to_java_string_fn = CAST_TO_FN_PTR(to_java_string_fn_t, os::dll_lookup(lib_handle, "JNU_NewStringPlatform"));
396 #if defined(_WIN32) && !defined(_WIN64)
397 if (_to_java_string_fn == NULL) {
398 // On 32 bit Windows, also try __stdcall decorated name
399 _to_java_string_fn = CAST_TO_FN_PTR(to_java_string_fn_t, os::dll_lookup(lib_handle, "_JNU_NewStringPlatform@8"));
400 }
401 #endif
402 if (_to_java_string_fn == NULL) {
403 fatal("JNU_NewStringPlatform missing");
404 }
405 }
406
407 jstring js = NULL;
408 {
409 assert(THREAD->is_Java_thread(), "must be java thread");
410 JavaThread* thread = (JavaThread*)THREAD;
411 HandleMark hm(thread);
412 ThreadToNativeFromVM ttn(thread);
413 js = (_to_java_string_fn)(thread->jni_environment(), str);
414 }
415
416 Handle native_platform_string(THREAD, JNIHandles::resolve(js));
417 JNIHandles::destroy_local(js); // destroy local JNIHandle.
418 return native_platform_string;
419 }
420
421 // Converts a Java String to a native C string that can be used for
422 // native OS calls.
423 char* java_lang_String::as_platform_dependent_str(Handle java_string, TRAPS) {
|