mirror of https://github.com/yandex/odyssey.git
71 lines
1.6 KiB
C
71 lines
1.6 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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void mm_coroutine_cache_init(mm_coroutine_cache_t *cache, int stack_size,
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int stack_size_guard, int limit)
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{
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mm_list_init(&cache->list);
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cache->count_free = 0;
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cache->count_total = 0;
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cache->stack_size = stack_size;
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cache->stack_size_guard = stack_size_guard;
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cache->limit = limit;
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}
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void mm_coroutine_cache_free(mm_coroutine_cache_t *cache)
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{
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mm_list_t *i, *n;
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mm_list_foreach_safe(&cache->list, i, n)
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{
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mm_coroutine_t *coroutine;
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coroutine = mm_container_of(i, mm_coroutine_t, link);
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mm_coroutine_free(coroutine);
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}
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}
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void mm_coroutine_cache_stat(mm_coroutine_cache_t *cache, uint64_t *count,
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uint64_t *count_free)
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{
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*count = cache->count_total - cache->count_free;
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*count_free = cache->count_free;
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}
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mm_coroutine_t *mm_coroutine_cache_pop(mm_coroutine_cache_t *cache)
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{
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mm_coroutine_t *coroutine;
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if (cache->count_free > 0) {
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mm_list_t *first = mm_list_pop(&cache->list);
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cache->count_free--;
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coroutine = mm_container_of(first, mm_coroutine_t, link);
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return coroutine;
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}
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cache->count_total++;
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coroutine = mm_coroutine_allocate(cache->stack_size,
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cache->stack_size_guard);
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if (coroutine == NULL)
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cache->count_total--;
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return coroutine;
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}
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void mm_coroutine_cache_push(mm_coroutine_cache_t *cache,
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mm_coroutine_t *coroutine)
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{
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assert(coroutine->state == MM_CFREE);
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if (cache->count_free >= cache->limit) {
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cache->count_total--;
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mm_coroutine_free(coroutine);
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return;
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}
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mm_list_init(&coroutine->link);
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mm_list_append(&cache->list, &coroutine->link);
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cache->count_free++;
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}
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