deon/chopstx
1
0
Fork 0
Code Issues Pull Requests Projects Releases Wiki Activity

eventflag rewrite

Browse Source
This commit is contained in:
NIIBE Yutaka
2016-05-18 16:52:00 +09:00
parent 7f009dbb5d
commit db413813b6
7 changed files with 129 additions and 109 deletions
Download Patch File Download Diff File Expand all files Collapse all files

65
chopstx.c
View File

@@ -333,6 +333,11 @@ struct chx_thread { /* inherits PQ */
struct chx_cleanup *clp;
};
struct chx_poll_head {
uint16_t type;
uint16_t ready;
};
static void
chx_cpu_sched_lock (void)
@@ -692,27 +697,6 @@ chx_init (struct chx_thread *tp)
}
/**
* chopstx_main_init - initialize main thread
* @prio: priority
*
* Initialize main thread with @prio.
* The thread main is created with priority CHX_PRIO_MAIN_INIT,
* and it runs with that priority until this routine will is called.
*/
void
chopstx_main_init (chopstx_prio_t prio)
{
struct chx_thread *tp = (struct chx_thread *)chopstx_main;
tp->prio_orig = prio;
if (prio >= CHOPSTX_PRIO_INHIBIT_PREEMPTION)
chx_cpu_sched_lock ();
tp->prio = prio;
}
static void
chx_request_preemption (uint16_t prio)
@@ -1137,6 +1121,8 @@ chx_snooze (uint32_t state, uint32_t *usec_p)
*
* Sleep for micro seconds, specified by @var.
* Another thread can clear @var to stop the caller going into sleep.
*
* This function is DEPRECATED. Please use chopstx_poll.
*/
void
chopstx_usec_wait_var (uint32_t *var)
@@ -1524,13 +1510,13 @@ chopstx_cleanup_pop (int execute)
/**
* chopstx_exit - Terminate the execution of thread
* chopstx_exit - Terminate the execution of running thread
* @retval: Return value (to be caught by a joining thread)
*
* Calling this function terminates the execution of thread, after
* calling clean up functions. If the calling thread still holds
* mutexes, they will be released. If the calling thread claiming
* IRQ, it will be released, too. This function never returns.
* Calling this function terminates the execution of running thread,
* after calling clean up functions. If the calling thread still
* holds mutexes, they will be released. This function never
* returns.
*/
void
chopstx_exit (void *retval)
@@ -1667,6 +1653,9 @@ chx_join_hook (struct chx_px *px, struct chx_poll_head *pd)
*
* Canceling the timer, wake up the sleeping thread.
* No return value.
*
* This function is DEPRECATED. Please use chopstx_cond_signal,
* where sleeping process calls chopstx_poll.
*/
void
chopstx_wakeup_usec_wait (chopstx_t thd)
@@ -1909,6 +1898,30 @@ chopstx_poll (uint32_t *usec_p, int n, ...)
return counter;
}
/**
* chopstx_setpriority - change the schedule priority of running thread
* @prio: priority
*
* Change the schedule priority with @prio.
*
* In general, it is not recommended to use this function because
* dynamically changing schedule priorities complicates the system.
* Only a possible valid usage of this function is in the main thread
* which starts its execution with priority of CHX_PRIO_MAIN_INIT, and
* let it change its priority after initialization of other threads.
*/
void
chopstx_setpriority (chopstx_prio_t prio)
{
struct chx_thread *tp = running;
tp->prio_orig = prio;
if (prio >= CHOPSTX_PRIO_INHIBIT_PREEMPTION)
chx_cpu_sched_lock ();
tp->prio = prio;
}
/*
* Lower layer architecture specific exception handling entries.