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Kernel+LibPthread: Implement pthread_join()

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It's now possible to block until another thread in the same process has
exited. We can also retrieve its exit value, which is whatever value it
passed to pthread_exit(). :^)
This commit is contained in:
Andreas Kling 2019-11-14 20:58:23 +01:00
parent c6a8b95643
commit 69efa3f630
9 changed files with 117 additions and 5 deletions
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8
Libraries/LibPthread/pthread.cpp
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@ -1,10 +1,11 @@
#include <AK/StdLibExtras.h>
#include <Kernel/Syscall.h>
#include <pthread.h>
#include <unistd.h>
extern "C" {
int pthread_create(pthread_t* thread, pthread_attr_t* attributes, void *(*start_routine)(void*), void* argument_to_start_routine)
int pthread_create(pthread_t* thread, pthread_attr_t* attributes, void* (*start_routine)(void*), void* argument_to_start_routine)
{
if (!thread)
return -EINVAL;
@ -21,4 +22,9 @@ void pthread_exit(void* value_ptr)
exit_thread(value_ptr);
}
int pthread_join(pthread_t thread, void** exit_value_ptr)
{
int rc = syscall(SC_join_thread, thread, exit_value_ptr);
__RETURN_WITH_ERRNO(rc, rc, -1);
}
}