3169 else {
3170 return false;
3171 }
3172 }
3173
3174 // Caveat: Solaris os::yield() causes a thread-state transition whereas
3175 // the linux and win32 implementations do not. This should be checked.
3176
3177 void os::yield() {
3178 // Yields to all threads with same or greater priority
3179 os::sleep(Thread::current(), 0, false);
3180 }
3181
3182 // Note that yield semantics are defined by the scheduling class to which
3183 // the thread currently belongs. Typically, yield will _not yield to
3184 // other equal or higher priority threads that reside on the dispatch queues
3185 // of other CPUs.
3186
3187 os::YieldResult os::NakedYield() { thr_yield(); return os::YIELD_UNKNOWN; }
3188
3189 void os::yield_all() {
3190 // Yields to all threads, including threads with lower priorities
3191 os::sleep(Thread::current(), 1, false);
3192 }
3193
3194 // Interface for setting lwp priorities. If we are using T2 libthread,
3195 // which forces the use of BoundThreads or we manually set UseBoundThreads,
3196 // all of our threads will be assigned to real lwp's. Using the thr_setprio
3197 // function is meaningless in this mode so we must adjust the real lwp's priority
3198 // The routines below implement the getting and setting of lwp priorities.
3199 //
3200 // Note: T2 is now the only supported libthread. UseBoundThreads flag is
3201 // being deprecated and all threads are now BoundThreads
3202 //
3203 // Note: There are three priority scales used on Solaris. Java priotities
3204 // which range from 1 to 10, libthread "thr_setprio" scale which range
3205 // from 0 to 127, and the current scheduling class of the process we
3206 // are running in. This is typically from -60 to +60.
3207 // The setting of the lwp priorities in done after a call to thr_setprio
3208 // so Java priorities are mapped to libthread priorities and we map from
3209 // the latter to lwp priorities. We don't keep priorities stored in
3210 // Java priorities since some of our worker threads want to set priorities
3211 // higher than all Java threads.
3212 //
3213 // For related information:
|
3169 else {
3170 return false;
3171 }
3172 }
3173
3174 // Caveat: Solaris os::yield() causes a thread-state transition whereas
3175 // the linux and win32 implementations do not. This should be checked.
3176
3177 void os::yield() {
3178 // Yields to all threads with same or greater priority
3179 os::sleep(Thread::current(), 0, false);
3180 }
3181
3182 // Note that yield semantics are defined by the scheduling class to which
3183 // the thread currently belongs. Typically, yield will _not yield to
3184 // other equal or higher priority threads that reside on the dispatch queues
3185 // of other CPUs.
3186
3187 os::YieldResult os::NakedYield() { thr_yield(); return os::YIELD_UNKNOWN; }
3188
3189 // Interface for setting lwp priorities. If we are using T2 libthread,
3190 // which forces the use of BoundThreads or we manually set UseBoundThreads,
3191 // all of our threads will be assigned to real lwp's. Using the thr_setprio
3192 // function is meaningless in this mode so we must adjust the real lwp's priority
3193 // The routines below implement the getting and setting of lwp priorities.
3194 //
3195 // Note: T2 is now the only supported libthread. UseBoundThreads flag is
3196 // being deprecated and all threads are now BoundThreads
3197 //
3198 // Note: There are three priority scales used on Solaris. Java priotities
3199 // which range from 1 to 10, libthread "thr_setprio" scale which range
3200 // from 0 to 127, and the current scheduling class of the process we
3201 // are running in. This is typically from -60 to +60.
3202 // The setting of the lwp priorities in done after a call to thr_setprio
3203 // so Java priorities are mapped to libthread priorities and we map from
3204 // the latter to lwp priorities. We don't keep priorities stored in
3205 // Java priorities since some of our worker threads want to set priorities
3206 // higher than all Java threads.
3207 //
3208 // For related information:
|