mirror of https://github.com/yandex/odyssey.git
72 lines
1.5 KiB
C
72 lines
1.5 KiB
C
#ifndef MM_SCHEDULER_H_
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#define MM_SCHEDULER_H_
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/*
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* machinarium.
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*
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* cooperative multitasking engine.
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*/
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typedef struct mm_scheduler_t mm_scheduler_t;
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struct mm_scheduler_t {
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mm_fiber_t *current;
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mm_fiber_t main;
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int count_ready;
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int count_active;
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int count_free;
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mm_list_t list_ready;
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mm_list_t list_active;
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mm_list_t list_free;
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int size_stack;
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void *data;
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};
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static inline mm_fiber_t*
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mm_scheduler_current(mm_scheduler_t *scheduler) {
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return scheduler->current;
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}
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static inline int
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mm_scheduler_online(mm_scheduler_t *scheduler) {
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return scheduler->count_active + scheduler->count_ready;
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}
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int mm_scheduler_init(mm_scheduler_t*, int, void*);
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void mm_scheduler_free(mm_scheduler_t*);
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mm_fiber_t*
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mm_scheduler_new(mm_scheduler_t*, mm_function_t, void*);
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void mm_scheduler_set(mm_fiber_t*, mm_fiberstate_t);
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void mm_scheduler_call(mm_fiber_t*);
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void mm_scheduler_yield(mm_scheduler_t*);
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void mm_scheduler_wait(mm_fiber_t*, mm_fiber_t*);
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static inline mm_fiber_t*
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mm_scheduler_next_ready(mm_scheduler_t *scheduler)
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{
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if (scheduler->count_ready == 0)
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return NULL;
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return mm_container_of(scheduler->list_ready.next, mm_fiber_t, link);
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}
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static inline void
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mm_scheduler_wakeup(mm_fiber_t *fiber)
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{
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mm_scheduler_set(fiber, MM_FIBER_READY);
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}
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static inline void
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mm_scheduler_wakeup_waiters(mm_fiber_t *fiber)
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{
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mm_fiber_t *waiter;
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mm_list_t *i;
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mm_list_foreach(&fiber->waiters, i) {
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waiter = mm_container_of(i, mm_fiber_t, link_wait);
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mm_scheduler_set(waiter, MM_FIBER_READY);
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}
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}
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#endif
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