mirror of https://github.com/yandex/odyssey.git
83 lines
1.7 KiB
C
83 lines
1.7 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_msgcache_init(mm_msgcache_t *cache)
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{
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mm_list_init(&cache->list);
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cache->count = 0;
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cache->count_allocated = 0;
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cache->count_gc = 0;
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cache->size = 0;
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cache->gc_watermark = 0;
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}
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void mm_msgcache_free(mm_msgcache_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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mm_msg_t *msg = mm_container_of(i, mm_msg_t, link);
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mm_buf_free(&msg->data);
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free(msg);
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}
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}
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void mm_msgcache_stat(mm_msgcache_t *cache,
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uint64_t *count_allocated,
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uint64_t *count_gc,
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uint64_t *count,
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uint64_t *size)
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{
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*count_allocated = cache->count_allocated;
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*count_gc = cache->count_gc;
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*count = cache->count;
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*size = cache->size;
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}
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mm_msg_t*
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mm_msgcache_pop(mm_msgcache_t *cache)
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{
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mm_msg_t *msg = NULL;
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if (cache->count > 0) {
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mm_list_t *first = mm_list_pop(&cache->list);
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cache->count--;
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msg = mm_container_of(first, mm_msg_t, link);
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cache->size -= mm_buf_size(&msg->data);
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goto init;
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}
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cache->count_allocated++;
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msg = malloc(sizeof(mm_msg_t));
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if (msg == NULL)
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return NULL;
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mm_buf_init(&msg->data);
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init:
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msg->machine_id = mm_self->id;
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msg->refs = 0;
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msg->type = 0;
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mm_buf_reset(&msg->data);
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mm_list_init(&msg->link);
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return msg;
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}
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void mm_msgcache_push(mm_msgcache_t *cache, mm_msg_t *msg)
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{
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if (msg->machine_id != mm_self->id ||
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mm_buf_size(&msg->data) > cache->gc_watermark) {
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cache->count_gc++;
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mm_buf_free(&msg->data);
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free(msg);
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return;
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}
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mm_list_append(&cache->list, &msg->link);
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cache->count++;
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cache->size += mm_buf_size(&msg->data);
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}
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