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comparison src/share/vm/classfile/javaClasses.cpp @ 22:90f5ddc7297b

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6646946: Kernel installation failed on Japanese and Chinese XP SP2 (VM part) Summary: convert strings from Download Manager into native encoding in the VM Reviewed-by: sbohne, never, phh, kamg, xlu
author coleenp
date Thu, 17 Jan 2008 13:38:17 -0800
parents a61af66fc99e
children deb97b8ef02b
comparison
equal deleted inserted replaced
21:b611e572fc5b 22:90f5ddc7297b
141 } 141 }
142 142
143 jstring js = NULL; 143 jstring js = NULL;
144 { JavaThread* thread = (JavaThread*)THREAD; 144 { JavaThread* thread = (JavaThread*)THREAD;
145 assert(thread->is_Java_thread(), "must be java thread"); 145 assert(thread->is_Java_thread(), "must be java thread");
146 HandleMark hm(thread);
146 ThreadToNativeFromVM ttn(thread); 147 ThreadToNativeFromVM ttn(thread);
148 js = (_to_java_string_fn)(thread->jni_environment(), str);
149 }
150 return Handle(THREAD, JNIHandles::resolve(js));
151 }
152
153 // Converts a Java String to a native C string that can be used for
154 // native OS calls.
155 char* java_lang_String::as_platform_dependent_str(Handle java_string, TRAPS) {
156
157 typedef char* (*to_platform_string_fn_t)(JNIEnv*, jstring, bool*);
158 static to_platform_string_fn_t _to_platform_string_fn = NULL;
159
160 if (_to_platform_string_fn == NULL) {
161 void *lib_handle = os::native_java_library();
162 _to_platform_string_fn = CAST_TO_FN_PTR(to_platform_string_fn_t, hpi::dll_lookup(lib_handle, "GetStringPlatformChars"));
163 if (_to_platform_string_fn == NULL) {
164 fatal("GetStringPlatformChars missing");
165 }
166 }
167
168 char *native_platform_string;
169 { JavaThread* thread = (JavaThread*)THREAD;
170 assert(thread->is_Java_thread(), "must be java thread");
171 JNIEnv *env = thread->jni_environment();
172 jstring js = (jstring) JNIHandles::make_local(env, java_string());
173 bool is_copy;
147 HandleMark hm(thread); 174 HandleMark hm(thread);
148 js = (_to_java_string_fn)(thread->jni_environment(), str); 175 ThreadToNativeFromVM ttn(thread);
149 } 176 native_platform_string = (_to_platform_string_fn)(env, js, &is_copy);
150 return Handle(THREAD, JNIHandles::resolve(js)); 177 assert(is_copy == JNI_TRUE, "is_copy value changed");
178 JNIHandles::destroy_local(js);
179 }
180 return native_platform_string;
151 } 181 }
152 182
153 Handle java_lang_String::char_converter(Handle java_string, jchar from_char, jchar to_char, TRAPS) { 183 Handle java_lang_String::char_converter(Handle java_string, jchar from_char, jchar to_char, TRAPS) {
154 oop obj = java_string(); 184 oop obj = java_string();
155 // Typical usage is to convert all '/' to '.' in string. 185 // Typical usage is to convert all '/' to '.' in string.