mirror of
https://git.busybox.net/uClibc
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59 lines
1.6 KiB
C
59 lines
1.6 KiB
C
/*
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* kernel-posix-timers.h - kernel-dependent definitions for POSIX timers.
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*/
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#include <features.h>
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#include <setjmp.h>
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#include <signal.h>
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#include <sys/types.h>
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#ifdef __UCLIBC_HAS_THREADS__
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#include <pthread.h>
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#endif
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#ifdef __UCLIBC_HAS_THREADS_NATIVE__
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/* Nonzero if the system calls are not available. */
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extern int __no_posix_timers attribute_hidden;
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/* Callback to start helper thread. */
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extern void __start_helper_thread (void) attribute_hidden;
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/* Control variable for helper thread creation. */
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extern pthread_once_t __helper_once attribute_hidden;
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/* TID of the helper thread. */
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extern pid_t __helper_tid attribute_hidden;
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/* List of active SIGEV_THREAD timers. */
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extern struct timer *__active_timer_sigev_thread attribute_hidden;
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/* Lock for the __active_timer_sigev_thread. */
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extern pthread_mutex_t __active_timer_sigev_thread_lock attribute_hidden;
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#endif
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/* Type of timers in the kernel */
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typedef int kernel_timer_t;
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/* Internal representation of timer */
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struct timer {
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/* Notification mechanism */
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int sigev_notify;
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/* Timer ID returned by the kernel */
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kernel_timer_t ktimerid;
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/*
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* All new elements must be added after ktimerid. And if the thrfunc
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* element is not the third element anymore the memory allocation in
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* timer_create needs to be changed.
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*/
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/* Parameters for the thread to be started for SIGEV_THREAD */
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void (*thrfunc) (sigval_t);
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sigval_t sival;
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#ifdef __UCLIBC_HAS_THREADS__
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pthread_attr_t attr;
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#endif
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/* Next element in list of active SIGEV_THREAD timers. */
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struct timer *next;
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};
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