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path: root/src/internal/pthread_impl.h
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2011-03-30optimize timer creation and possibly protect against some minor racesRich Felker-2/+0
the major idea of this patch is not to depend on having the timer pointer delivered to the signal handler, and instead use the thread pointer to get the callback function address and argument. this way, the parent thread can make the timer_create syscall while the child thread is starting, and it should never have to block waiting for the barrier.
2011-03-29major improvements to cancellation handlingRich Felker-2/+5
- there is no longer any risk of spoofing cancellation requests, since the cancel flag is set in pthread_cancel rather than in the signal handler. - cancellation signal is no longer unblocked when running the cancellation handlers. instead, pthread_create will cause any new threads created from a cancellation handler to unblock their own cancellation signal. - various tweaks in preparation for POSIX timer support.
2011-03-29some preliminaries for adding POSIX timersRich Felker-0/+4
2011-03-28remove useless field in pthread struct (wasted a good bit of space)Rich Felker-1/+0
2011-03-17implement robust mutexesRich Felker-0/+5
some of this code should be cleaned up, e.g. using macros for some of the bit flags, masks, etc. nonetheless, the code is believed to be working and correct at this point.
2011-03-17reorder mutex struct fields to make room for pointers (upcoming robust mutexes)Rich Felker-1/+3
the layout has been chosen so that pointer slots 3 and 4 fit between the integer slots on 32-bit archs, and come after the integer slots on 64-bit archs.
2011-03-17unify lock and owner fields of mutex structureRich Felker-1/+0
this change is necessary to free up one slot in the mutex structure so that we can use doubly-linked lists in the implementation of robust mutexes.
2011-03-10optimize pthread termination in the non-detached caseRich Felker-0/+1
we can avoid blocking signals by simply using a flag to mark that the thread has exited and prevent it from getting counted in the rsyscall signal-pingpong. this restores the original pthread create/join throughput from before the sigprocmask call was added.
2011-03-08fix and optimize non-default-type mutex behaviorRich Felker-0/+1
problem 1: mutex type from the attribute was being ignored by pthread_mutex_init, so recursive/errorchecking mutexes were never being used at all. problem 2: ownership of recursive mutexes was not being enforced at unlock time.
2011-03-07use the selected clock from the condattr for pthread_cond_timedwaitRich Felker-0/+1
2011-02-17reorganize pthread data structures and move the definitions to alltypes.hRich Felker-0/+19
this allows sys/types.h to provide the pthread types, as required by POSIX. this design also facilitates forcing ABI-compatible sizes in the arch-specific alltypes.h, while eliminating the need for developers changing the internals of the pthread types to poke around with arch-specific headers they may not be able to test.
2011-02-15finish unifying thread register handling in preparation for portingRich Felker-8/+2
2011-02-15begin unifying clone/thread management interface in preparation for portingRich Felker-5/+3
2011-02-12initial check-in, version 0.5.0v0.5.0Rich Felker-0/+68