#include "shm_mm_wrapper.h"
#include "shm_mm.h"
#include "hashtable.h"
#include "lock_free_queue.h"
#include "shm_socket.h"

#define BUFFER_TIME 1


void shm_mm_wrapper_init(int size) {
	shm_mm_init(size);

}

void shm_mm_wrapper_destroy() {
	shm_mm_destroy();
}

int shm_mm_wrapper_alloc_key() {
	return mm_alloc_key();
}


/**
 * 回收假删除的key
 */
int shm_mm_wrapper_start_resycle() {
  ShmQueueStMap * shmQueueStMap =  shm_mm_attach<ShmQueueStMap>(SHM_QUEUE_ST_KEY);
  hashtable_t *hashtable = mm_get_hashtable();
  LockFreeQueue<shm_packet_t> *mqueue;
  while(true) {
    for(auto it = shmQueueStMap->begin(); it != shmQueueStMap->end(); ++it ) {
      if(it->second.status == SHM_QUEUE_ST_CLOSED && difftime(time(NULL), it->second.closeTime) > BUFFER_TIME ) {
        // mqueue = (LockFreeQueue<shm_packet_t> *)hashtable_get(hashtable, keys[i]);
        // if(mqueue != NULL) {
        //   delete mqueue;
        // }

        hashtable_remove(hashtable, it->first);
        printf("reomved queue %d\n\n", it->first);
        it->second.status = SHM_QUEUE_ST_RECYCLED;
        // 不能 erase ,否则会出现多进程之间的同步问题， 而这正是这里要解决的问题
        // it = shmQueueStMap->erase(it);
        // continue;
      }
    }

    sleep(1);
  }
  return 0;
}

//删除包含在keys内的queue
int shm_mm_wrapper_remove_keys(int keys[], int length) {
  hashtable_t *hashtable = mm_get_hashtable();
  LockFreeQueue<shm_packet_t> *mqueue;
  int count = 0;
  for(int i = 0; i< length; i++) {
    // 销毁共享内存的queue
    hashtable_remove(hashtable, keys[i]);
    LoggerFactory::getLogger()->debug("remove queue %d",  keys[i]);
    count++;
    
  }
  return count;
}

 
// 删除不在keys内的queue 
int shm_mm_wrapper_remove_keys_exclude(int keys[], int length) {
  hashtable_t *hashtable = mm_get_hashtable();
  std::set<int> *keyset = hashtable_keyset(hashtable);
  std::set<int>::iterator keyItr;
  LockFreeQueue<shm_packet_t> *mqueue;
  bool found;
  int count = 0;
  for (keyItr = keyset->begin(); keyItr != keyset->end(); keyItr++) {
    found = false;
    for (size_t i = 0; i < length; i++) {
      if (*keyItr == keys[i]) {
        found = true;
        break;
      }
    }
    // 100内的是bus内部自己用的
    if (!found && *keyItr > 100) {
      // 销毁共享内存的queue
      hashtable_remove(hashtable, *keyItr);
      LoggerFactory::getLogger()->debug("remove queue %d",  *keyItr);
      count++;
     
    }
  }
  delete keyset;
  return count;
}