212
213 // The mapping from OS priority back to Java priority may be inexact because
214 // Java priorities can map M:1 with native priorities. If you want the definite
215 // Java priority then use JavaThread::java_priority()
216 OSReturn os::get_priority(const Thread* const thread, ThreadPriority& priority) {
217 int p;
218 int os_prio;
219 OSReturn ret = get_native_priority(thread, &os_prio);
220 if (ret != OS_OK) return ret;
221
222 if (java_to_os_priority[MaxPriority] > java_to_os_priority[MinPriority]) {
223 for (p = MaxPriority; p > MinPriority && java_to_os_priority[p] > os_prio; p--) ;
224 } else {
225 // niceness values are in reverse order
226 for (p = MaxPriority; p > MinPriority && java_to_os_priority[p] < os_prio; p--) ;
227 }
228 priority = (ThreadPriority)p;
229 return OS_OK;
230 }
231
232 bool os::dll_build_name(char* buffer, size_t size, const char* fname) {
233 int n = jio_snprintf(buffer, size, "%s%s%s", JNI_LIB_PREFIX, fname, JNI_LIB_SUFFIX);
234 return (n != -1);
235 }
236
237 // Helper for dll_locate_lib.
238 // Pass buffer and printbuffer as we already printed the path to buffer
239 // when we called get_current_directory. This way we avoid another buffer
240 // of size MAX_PATH.
241 static bool conc_path_file_and_check(char *buffer, char *printbuffer, size_t printbuflen,
242 const char* pname, char lastchar, const char* fname) {
243
244 // Concatenate path and file name, but don't print double path separators.
245 const char *filesep = (WINDOWS_ONLY(lastchar == ':' ||) lastchar == os::file_separator()[0]) ?
246 "" : os::file_separator();
247 int ret = jio_snprintf(printbuffer, printbuflen, "%s%s%s", pname, filesep, fname);
248 // Check whether file exists.
249 if (ret != -1) {
250 struct stat statbuf;
251 return os::stat(buffer, &statbuf) == 0;
|
212
213 // The mapping from OS priority back to Java priority may be inexact because
214 // Java priorities can map M:1 with native priorities. If you want the definite
215 // Java priority then use JavaThread::java_priority()
216 OSReturn os::get_priority(const Thread* const thread, ThreadPriority& priority) {
217 int p;
218 int os_prio;
219 OSReturn ret = get_native_priority(thread, &os_prio);
220 if (ret != OS_OK) return ret;
221
222 if (java_to_os_priority[MaxPriority] > java_to_os_priority[MinPriority]) {
223 for (p = MaxPriority; p > MinPriority && java_to_os_priority[p] > os_prio; p--) ;
224 } else {
225 // niceness values are in reverse order
226 for (p = MaxPriority; p > MinPriority && java_to_os_priority[p] < os_prio; p--) ;
227 }
228 priority = (ThreadPriority)p;
229 return OS_OK;
230 }
231
232
233 #if !defined(LINUX) && !defined(_WINDOWS)
234 size_t os::committed_stack_size(address bottom, size_t size) {
235 return size;
236 }
237 #endif
238
239 bool os::dll_build_name(char* buffer, size_t size, const char* fname) {
240 int n = jio_snprintf(buffer, size, "%s%s%s", JNI_LIB_PREFIX, fname, JNI_LIB_SUFFIX);
241 return (n != -1);
242 }
243
244 // Helper for dll_locate_lib.
245 // Pass buffer and printbuffer as we already printed the path to buffer
246 // when we called get_current_directory. This way we avoid another buffer
247 // of size MAX_PATH.
248 static bool conc_path_file_and_check(char *buffer, char *printbuffer, size_t printbuflen,
249 const char* pname, char lastchar, const char* fname) {
250
251 // Concatenate path and file name, but don't print double path separators.
252 const char *filesep = (WINDOWS_ONLY(lastchar == ':' ||) lastchar == os::file_separator()[0]) ?
253 "" : os::file_separator();
254 int ret = jio_snprintf(printbuffer, printbuflen, "%s%s%s", pname, filesep, fname);
255 // Check whether file exists.
256 if (ret != -1) {
257 struct stat statbuf;
258 return os::stat(buffer, &statbuf) == 0;
|