Gregory Nutt 29b5b3667f sched/semaphore: sem_timedwait() is a cancellation point and, hence, cannot be called from within the OS. Created nxsem_timedwait() that is equivalent but does not modify the errno and does not cause cancellation. All calls to sem_timedwait() change to calls to nxsem_timedwait() in the OS.

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..

Make.defs

sem_setprotocol: Handle a case of missing proxy for sem_setprotocol. Reorder so that (1) this error is avoided, and (2) >No proxy is needed if priority inheritance is not enabled.

2016-11-03 18:51:38 -06:00

sem_destroy.c

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sem_holder.c

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sem_initialize.c

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sem_post.c

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sem_recover.c

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sem_reset.c

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sem_setprotocol.c

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sem_tickwait.c

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sem_timedwait.c

sched/semaphore: sem_timedwait() is a cancellation point and, hence, cannot be called from within the OS. Created nxsem_timedwait() that is equivalent but does not modify the errno and does not cause cancellation. All calls to sem_timedwait() change to calls to nxsem_timedwait() in the OS.

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sem_timeout.c

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sem_trywait.c

sem_wait() and sem_trywait() no longer modify the errno value UNLESS an error occurs. This allows these functions to be used internallly without clobbering the errno value.

2016-11-09 07:01:49 -06:00

sem_wait.c

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sem_waitirq.c

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semaphore.h

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spinlock.c

SMP: There were certain conditions that we must avoid by preventing releasing the pending tasks while withn a critical section. But this logic was incomplete; there was no logic to prevent other CPUs from adding new, running tasks while on CPU is in a critical section.

2016-12-27 08:49:07 -06:00