Function pb_poolalloc

Plugins/UnLuaExtensions/LuaProtobuf/Source/src/pb.h:830–847

}

PB_API void *pb_poolalloc(pb_Pool *pool) {
    void *obj = pool->freed;
    if (obj == NULL) {
        size_t objsize = pool->obj_size, offset;
        void *newpage = malloc(PB_POOLSIZE);
        if (newpage == NULL) return NULL;
        offset = ((PB_POOLSIZE - sizeof(void*)) / objsize - 1) * objsize;
        for (; offset > 0; offset -= objsize) {
            void **entry = (void**)((char*)newpage + offset);
            *entry = pool->freed, pool->freed = (void*)entry;
        }
        *(void**)((char*)newpage + PB_POOLSIZE - sizeof(void*)) = pool->pages;
        pool->pages = newpage;
        return newpage;
    }
    pool->freed = *(void**)obj;
    return obj;
}

PB_API void pb_poolfree(pb_Pool *pool, void *obj)
{ *(void**)obj = pool->freed, pool->freed = obj; }