1. 事件处理框架1.1 event_init() 初始化 首先要隆重介绍event_base对象: struct event_base { const struct eventop *evsel; void *evbase; int event_count; /* counts number of total events */ int event_count_active; /* counts number of active events */ int event_gotterm; /* Set to term...
struct event_base * event_base_new(void) 3. 创建一个event,将该socket托管给event_base,指定要监听的事件类型,并绑定上相应的回调函数(及需要给它的参数)。即 [cpp]view plaincopy struct event * event_new(struct event_base *base, evutil_socket_t fd, short events, void (*cb)(evutil_socket_t,...
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Heartbeat Agent: Fixed issue where default heartbeat action overwrote action set for some system health packages Collector: Stability improvement for collectors with large number of connections Network Services: Improved bandwidth calculation for sFlow Built-In database upgraded to PostgreSQL v14.15 Web...
SELECT函数进行IO复用服务器模型的原理是:当一个客户端连接上服务器时,服务器就将其连接的fd加入fd_set集合,等到这个连接准备好读或写的时候,就通知程序进行IO操作,与客户端进行数据通信。 大部分 Unix/Linux 都支持 select 函数,该函数用于探测多个文件句柄的状态变化。
setCodeAndData(1, "publish_data_changed", setCodeDataCB); setCodeAndData setCodeAndData(code: number, data: string): Promise<void> 以Promise形式设置公共事件的代码和数据。 系统能力:SystemCapability.Notification.CommonEvent 参数: 参数名类型必填说明 code number 是 公共事件的...
event_set来设置event对象,包含全部者event_base对象, fd, 事件(EV_READ| EV_WRITE|EV_PERSIST), 回掉函数和參数,事件优先级是当前event_base的中间级别(current_base->nactivequeues/2) 设置监视事件后,事件处理函数能够仅仅被调用一次或总被调用。
event_set() event_set来设置event对象,包含全部者event_base对象、fd、事件(EV_READ|EV_WRITE|EV_PERSIST),回掉函数和參数,事件优先级是当前event_base的中间级别(current_base->nactivequeues/2)。 设置监视事件后,事件处理函数能够仅仅被调用一次或总被调用。 仅仅调用一次:事件处理函数被调用后,即从事件队列...
FactSet Fantasy Premier League (Independent Publisher) Farsight DNSDB FCA (Independent Publisher) Feathery Feathery Forms Federal Reserve Economic Data (Independent Publisher) Festivo (Independent Publisher) FHIRBase FHIRClinical FHIRlink File System File.io (Independent Publisher) Fin & Ops Apps (Dynamics...
crash> set 3104 PID: 3104 COMMAND: "db2sysc" TASK: ffff935efa353180 [THREAD_INFO: ffff935f2f5bc000] CPU: 1 STATE: TASK_UNINTERRUPTIBLE Let's check what is holding the fanotify type file handle, that is associated with the fsnotify_group, are "airlock" thread group:Raw...