MSG_CSDATA_STRUCT sM; // holds alarm info MSG_TEXT_STRUCT tClase; MSG_TEXT_STRUCT tTipo; MSG_TEXT_STRUCT tEstacion; MSG_TEXT_STRUCT tMeld; CMN_ERROR pError; memset( &mRT, 0, sizeof( MSG_RTDATA_STRUCT ) ); if( pszMsgData != NULL ) { //printf( "Message : %s \r\n", pszM...
}msg;structlist_head{structlist_head*next, *prev; };/* one msg_msg structure for each message */structmsg_msg{structlist_headm_list;longm_type;size_tm_ts;/* message text size */void*next;/* struct msg_msgseg *next; */void*security;/* NULL without SELinux *//* the actual messa...
text 画布组件 canvas组件 CanvasRenderingContext2D对象 接口 通用规则 通用错误码 基本功能 应用上下文 日志打印 页面路由 定时器 文件数据 数据存储 文件存储 系统能力 设备信息 安全 加密算法 组件通用说明 组件通用事件 组件通用属性 组件通用样式 标准库 标准C库 FS IO IPC...
消息头 msg_msg 结构如下所示。 struct msg_msg { struct list_head m_list; long m_type; size_t m_ts; /* message text size */ struct msg_msgseg *next; void *security; // security指针总为0,因为未开启SELinux /* the actual message follows immediately */ };...
size_t m_ts; /* message text size */ struct msg_msgseg *next; void *security; /* the actual message follows immediately */ }; 其中list_head为双向链表结构体,储存next和prev指针: struct list_head { struct list_head *next, *prev; ...
//设置message type和text sizemsg->m_type = mtype;msg->m_ts = msgsz; rcu_read_lock(); //根据namespcae和msqid进行检查//struct msg_queue *msq用于描述消息队列msq = msq_obtain_object_check(ns, msqid);if (IS_ERR(msq)) {err =...
; /* message text size */ struct msg_msgseg *next; void *security; /* the actual message follows immediately */ }; struct msg_msgseg { struct msg_msgseg *next; /* the next part of the message follows immediately */ }; 为了读取 msg 的数据缓存, load_msg 实现了这样一个循环来读取每...
{longintmy_msg_type;//这个是必须的 并且使用时,赋值需要>0charsome_text[MAX_TEXT]; };intmain() {intrunning =1;structmy_msg_st some_data;intmsgid;charbuffer[BUFSIZ]; msgid= msgget((key_t)1234,0666|IPC_CREAT);if(msgid == -1) ...
size_t m_ts; /* message text size */ struct msg_msgseg *next; void *security; /* the actual message follows immediately */ }; 1. 2. 3. 4. 5. 6. 7. 8. 9. msgsnd发送数据调用链及方法 调用链:通过msgsnd() -> ksys_msgsnd() -> do_msgsnd() -> load_msg() -> alloc...
typedefstructtagMSG{HWND hwnd; UINT message; WPARAM wParam; LPARAM lParam; DWORD time; POINT pt; DWORD lPrivate; } MSG, *PMSG, *NPMSG, *LPMSG; Members hwnd Type:HWND A handle to the window whose window procedure receives the message. This member isNULLwhen the message is a thread messa...