C++ (Cpp) gf_timer_call_staleの例

コード例 #1

ファイル: timer.c プロジェクト: NeilW/deb-glusterfs

void *
gf_timer_proc (void *ctx)
{
  if (!ctx) {
    gf_log ("timer", GF_LOG_ERROR, "(!ctx)");
    return 0;
  }

  gf_timer_registry_t *reg = gf_timer_registry_init (ctx);
  if (!reg) {
    gf_log ("timer", GF_LOG_ERROR, "!reg");
    return NULL;
  }

  while (!reg->fin) {
    unsigned long long now;
    struct timeval now_tv;
    gf_timer_t *event;

    gettimeofday (&now_tv, NULL);
    now = TS (now_tv);
    while (1) {
      unsigned long long at;
      char need_cbk = 0;

      pthread_mutex_lock (&reg->lock);
      {
	event = reg->active.next;
	at = TS (event->at);
	if (event != &reg->active && now >= at) {
	  need_cbk = 1;
	  gf_timer_call_stale (reg, event);
	}
      }
      pthread_mutex_unlock (&reg->lock);
      if (need_cbk)
	event->cbk (event->data);

      else
	break;
    }
    usleep (100000);
  }
  return NULL;
}

コード例 #2

ファイル: timer.c プロジェクト: chenzhongtao/mg_glusterfs

//计时器线程
void *
gf_timer_proc (void *ctx)
{
        gf_timer_registry_t *reg = NULL;
        const struct timespec sleepts = {.tv_sec = 1, .tv_nsec = 0, };

        if (ctx == NULL)
        {
                gf_log_callingfn ("timer", GF_LOG_ERROR, "invalid argument");
                return NULL;
        }

        reg = gf_timer_registry_init (ctx);
        if (!reg) {
                gf_log ("timer", GF_LOG_ERROR, "!reg");
                return NULL;
        }

        while (!reg->fin) {
                uint64_t now;
                struct timespec now_ts;
                gf_timer_t *event = NULL;

                timespec_now (&now_ts);
                //现在的时间
                now = TS (now_ts);
                while (1) {
                        uint64_t at;
                        char need_cbk = 0;

                        pthread_mutex_lock (&reg->lock);
                        {
                                event = reg->active.next;
                                at = TS (event->at);
                                if (event != &reg->active && now >= at) {
                                        need_cbk = 1;
                                        gf_timer_call_stale (reg, event);
                                }
                        }
                        pthread_mutex_unlock (&reg->lock);
                        if (event->xl)
                                THIS = event->xl;
                        if (need_cbk)
                                event->callbk  (event->data);

                        else
                            //跳出while(1)
                                break;
                }
                // 睡1秒
                nanosleep (&sleepts, NULL);
        }

        pthread_mutex_lock (&reg->lock);
        {
                while (reg->active.next != &reg->active) {
                        gf_timer_call_cancel (ctx, reg->active.next);
                }

                while (reg->stale.next != &reg->stale) {
                        gf_timer_call_cancel (ctx, reg->stale.next);
                }
        }
        pthread_mutex_unlock (&reg->lock);
        pthread_mutex_destroy (&reg->lock);
        GF_FREE (((glusterfs_ctx_t *)ctx)->timer);

        return NULL;
}

// 计时器注册初始化
gf_timer_registry_t *
gf_timer_registry_init (glusterfs_ctx_t *ctx)
{
        if (ctx == NULL) {
                gf_log_callingfn ("timer", GF_LOG_ERROR, "invalid argument");
                return NULL;
        }
        // 还没初始化过的
        if (!ctx->timer) {
                gf_timer_registry_t *reg = NULL;

                reg = GF_CALLOC (1, sizeof (*reg),
                                 gf_common_mt_gf_timer_registry_t);
                if (!reg)
                        goto out;

                pthread_mutex_init (&reg->lock, NULL);
                reg->active.next = &reg->active;
                reg->active.prev = &reg->active;
                reg->stale.next = &reg->stale;
                reg->stale.prev = &reg->stale;

                ctx->timer = reg;
                gf_thread_create (&reg->th, NULL, gf_timer_proc, ctx);
        }
out:
        return ctx->timer;
}

コード例 #3

ファイル: timer.c プロジェクト: lkundrak/glusterfs

void *
gf_timer_proc (void *ctx)
{
        gf_timer_registry_t *reg = NULL;

        if (ctx == NULL)
        {
                gf_log_callingfn ("timer", GF_LOG_ERROR, "invalid argument");
                return NULL;
        }

        reg = gf_timer_registry_init (ctx);
        if (!reg) {
                gf_log ("timer", GF_LOG_ERROR, "!reg");
                return NULL;
        }

        while (!reg->fin) {
                unsigned long long now;
                struct timeval now_tv;
                gf_timer_t *event = NULL;

                gettimeofday (&now_tv, NULL);
                now = TS (now_tv);
                while (1) {
                        unsigned long long at;
                        char need_cbk = 0;

                        pthread_mutex_lock (&reg->lock);
                        {
                                event = reg->active.next;
                                at = TS (event->at);
                                if (event != &reg->active && now >= at) {
                                        need_cbk = 1;
                                        gf_timer_call_stale (reg, event);
                                }
                        }
                        pthread_mutex_unlock (&reg->lock);
                        if (event->xl)
                                THIS = event->xl;
                        if (need_cbk)
                                event->callbk  (event->data);

                        else
                                break;
                }
                usleep (1000000);
        }

        pthread_mutex_lock (&reg->lock);
        {
                while (reg->active.next != &reg->active) {
                        gf_timer_call_cancel (ctx, reg->active.next);
                }

                while (reg->stale.next != &reg->stale) {
                        gf_timer_call_cancel (ctx, reg->stale.next);
                }
        }
        pthread_mutex_unlock (&reg->lock);
        pthread_mutex_destroy (&reg->lock);
        GF_FREE (((glusterfs_ctx_t *)ctx)->timer);

        return NULL;
}

コード例 #4

ファイル: timer.c プロジェクト: wzzlYwzzl/glusterfs

void *
gf_timer_proc (void *ctx)
{
        gf_timer_registry_t *reg = NULL;
        const struct timespec sleepts = {.tv_sec = 1, .tv_nsec = 0, };
        gf_timer_t *event = NULL;
        xlator_t   *old_THIS = NULL;

        if (ctx == NULL)
        {
                gf_msg_callingfn ("timer", GF_LOG_ERROR, EINVAL,
                                  LG_MSG_INVALID_ARG, "invalid argument");
                return NULL;
        }

        reg = gf_timer_registry_init (ctx);
        if (!reg) {
                gf_msg ("timer", GF_LOG_ERROR, 0, LG_MSG_INIT_TIMER_FAILED,
                        "!reg");
                return NULL;
        }

        while (!reg->fin) {
                uint64_t now;
                struct timespec now_ts;

                timespec_now (&now_ts);
                now = TS (now_ts);
                while (1) {
                        uint64_t at;
                        char need_cbk = 0;

                        pthread_mutex_lock (&reg->lock);
                        {
                                event = reg->active.next;
                                at = TS (event->at);
                                if (event != &reg->active && now >= at) {
                                        need_cbk = 1;
                                        gf_timer_call_stale (reg, event);
                                }
                        }
                        pthread_mutex_unlock (&reg->lock);
                        if (need_cbk) {
                                old_THIS = NULL;
                                if (event->xl) {
                                        old_THIS = THIS;
                                        THIS = event->xl;
                                }
                                event->callbk (event->data);
                                /*This callbk above would have freed the event
                                 * by calling timer_cancel, don't ever touch it
                                 * again*/
                                if (old_THIS) {
                                        THIS = old_THIS;
                                }
                        }
                        else
                                break;
                }
                nanosleep (&sleepts, NULL);
        }

        pthread_mutex_lock (&reg->lock);
        {
                /* Do not call gf_timer_call_cancel(),
                 * it will lead to deadlock
                 */
                while (reg->active.next != &reg->active) {
                        event = reg->active.next;
                        /* cannot call list_del as the event doesnt have
                         * list_head*/
                        __delete_entry (event);
                }

                while (reg->stale.next != &reg->stale) {
                        event = reg->stale.next;
                        __delete_entry (event);
                }
        }
        pthread_mutex_unlock (&reg->lock);
        pthread_mutex_destroy (&reg->lock);
        GF_FREE (((glusterfs_ctx_t *)ctx)->timer);

        return NULL;
}

gf_timer_registry_t *
gf_timer_registry_init (glusterfs_ctx_t *ctx)
{
        if (ctx == NULL) {
                gf_msg_callingfn ("timer", GF_LOG_ERROR, EINVAL,
                                  LG_MSG_INVALID_ARG, "invalid argument");
                return NULL;
        }

        if (!ctx->timer) {
                gf_timer_registry_t *reg = NULL;

                reg = GF_CALLOC (1, sizeof (*reg),
                                 gf_common_mt_gf_timer_registry_t);
                if (!reg)
                        goto out;

                pthread_mutex_init (&reg->lock, NULL);
                reg->active.next = &reg->active;
                reg->active.prev = &reg->active;
                reg->stale.next = &reg->stale;
                reg->stale.prev = &reg->stale;

                ctx->timer = reg;
                gf_thread_create (&reg->th, NULL, gf_timer_proc, ctx);
        }
out:
        return ctx->timer;
}

void
gf_timer_registry_destroy (glusterfs_ctx_t *ctx)
{
        pthread_t thr_id;
        gf_timer_registry_t *reg = NULL;

        if (ctx == NULL)
                return;

        reg = ctx->timer;
        thr_id = reg->th;
        reg->fin = 1;
        pthread_join (thr_id, NULL);
}