mirror of https://github.com/yandex/odyssey.git
68 lines
1.2 KiB
C
68 lines
1.2 KiB
C
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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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#include <machinarium.h>
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#include <machinarium_private.h>
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int mm_loop_init(mm_loop_t *loop)
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{
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loop->poll = mm_epoll_if.create();
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if (loop->poll == NULL)
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return -1;
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mm_clock_init(&loop->clock);
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mm_clock_update(&loop->clock);
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memset(&loop->idle, 0, sizeof(loop->idle));
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return 0;
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}
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int mm_loop_shutdown(mm_loop_t *loop)
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{
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mm_clock_free(&loop->clock);
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int rc;
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rc = loop->poll->iface->shutdown(loop->poll);
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if (rc == -1)
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return -1;
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loop->poll->iface->free(loop->poll);
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return 0;
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}
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int mm_loop_step(mm_loop_t *loop)
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{
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/* update clock time */
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mm_clock_update(&loop->clock);
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/* run idle callback */
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int rc;
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if (loop->idle.callback) {
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rc = loop->idle.callback(&loop->idle);
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if (! rc)
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return 0;
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}
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/* get minimal timer timeout */
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int timeout = UINT32_MAX;
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mm_timer_t *min;
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min = mm_clock_timer_min(&loop->clock);
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if (min)
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timeout = min->interval;
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/* run timers */
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mm_clock_step(&loop->clock);
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/* poll for events */
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rc = loop->poll->iface->step(loop->poll, timeout);
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if (rc == -1)
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return -1;
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/* update clock time */
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mm_clock_update(&loop->clock);
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/* run timers */
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mm_clock_step(&loop->clock);
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return 0;
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}
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