SECS/GEM通信

以下只列出主要代码

1.将Secs.dll、secs.h、Secs.lib导入工程中

2.定义服务器和客户端的对象句柄、相关结构体

3.启动服务器（或开启客户端）

 memset(&settings,0,sizeof(settings)); settings.t3 = 3000; // 45000; settings.t5 = 10000; settings.t6 = 5000; settings.t7 = 10000; settings.t8 = 5000; settings.pfn_on_connect = OnConnect; settings.pfn_on_recv_message = OnRecvMessage; settings.pfn_on_close = OnClose; settings.device_id = 0; settings.mode = HSMS_PASSIVE; settings.local_ip = inet_addr("127.0.0.1"); settings.local_port = 5000; settings.remote_ip = inet_addr("127.0.0.1") settings.remote_port = 5000; secs_Server = CreateSecs(&settings); if (secs_Server == NULL) { return FALSE; } else { if(settings.mode = HSMS_PASSIVE) { BOOL bStartServerOK = FALSE; bStartServerOK = SecsStartupServer(secs_Server); if (!bStartServerOK) { DestroySecs(secs_Server); return FALSE; } } else { BOOL bStartServerOK = FALSE; bStartServerOK =SecsConnect(secs_Server); if(!bStartServerOK) { DestroySecs(secs_Server); return FALSE; } } }

4.三个响应消息（链接、数据接收、断开链接）

BOOL WINAPI OnConnect(HSECS hServer,HSECS hSecs,USHORT usDevId) { secs_Client = hSecs; return TRUE; } DWORD WINAPI OnRecvMessage(HSECS session_handle, unsigned long id,unsigned char stream,unsigned char function,SECS_ITEM* ptr_item) { unsigned long proc_result = do_process_msg(id, stream, function, ptr_item); return proc_result; } VOID WINAPI OnClose(HSECS hSecs) { secs_Client = NULL; }

5.消息处理

unsigned long do_process_msg( DWORD msgid, UCHAR stream,UCHAR function,SECS_ITEM* ptr_item) { // normal process int ret_code = SECS_SYS_SUCCESS; switch (stream) { case 1: // ========= S1 switch (function) { case 1: ret_code = on_s1_f1(ptr_item, msgid); break; // S1,F1 default: ret_code = SECS_SYS_ERROR_UFN; break; } break; case 2: // ========= S2 switch(function) { // case 33: ret_code = on_s2_f33(ptr_item, msgid); break; // S2,F33 // case 35: ret_code = on_s2_f35(ptr_item, msgid); break; // S2,F35 // case 37: ret_code = on_s2_f37(ptr_item, msgid); break; // S2,F37 case 41: ret_code = on_s2_f41(ptr_item, msgid); break; // S2,F41 default: ret_code = SECS_SYS_ERROR_UFN; break; } break; default: ret_code = SECS_SYS_ERROR_USN; break; } return ret_code; } int on_s1_f1(SECS_ITEM* ptr_item, DWORD msgid) { // reply S1,F2 SECS_ITEM* item_s1f2 = SecsCreateItemList(2); SECS_ITEM* item_mdln = SecsCreateItemAscii(EQ_MDLN); SECS_ITEM* item_softrev = SecsCreateItemAscii(EQ_SOFTREV); SecsListItemAppend(item_s1f2, item_mdln); SecsListItemAppend(item_s1f2, item_softrev); ::SecsReplyMessageItem(g_secs_Client,1, 2,item_s1f2, 0, msgid); SecsDeleteItem(item_s1f2); return SECS_SYS_SUCCESS; } int on_s2_f41(SECS_ITEM* ptr_item, DWORD msgid) { // reply S1,F2 SECS_ITEM* item_s1f2 = SecsCreateItemList(2); SECS_ITEM* item_mdln = SecsCreateItemAscii(EQ_MDLN); SECS_ITEM* item_softrev = SecsCreateItemAscii(EQ_SOFTREV); SecsListItemAppend(item_s1f2, item_mdln); SecsListItemAppend(item_s1f2, item_softrev); ::SecsReplyMessageItem(g_secs_Client,1, 2,item_s1f2, 0, msgid); SecsDeleteItem(item_s1f2); return SECS_SYS_SUCCESS; }

6.发送消息

SECS_ITEM* ptr_item_First = SecsCreateItemList(2); SECS_ITEM* ptr_item_First_1 = SecsCreateItemList(1); SECS_ITEM* ptr_item_First_1_1 = SecsCreateItemList(2); SECS_ITEM* ptr_item_First_1_1_1 = SecsCreateItemAscii("BIBStrip_"); SECS_ITEM* ptr_item_First_1_1_2 = SecsCreateItemList(1); SECS_ITEM* ptr_item_First_1_1_2_1 = SecsCreateItemList(2); SECS_ITEM* ptr_item_First_1_1_2_1_1 = SecsCreateItemAscii("MapData"); SECS_ITEM* ptr_item_First_1_1_2_1_2 = SecsCreateItemAscii(""); SECS_ITEM* ptr_item_First_2 = SecsCreateItemList(2); SECS_ITEM* ptr_item_First_2_1 = SecsCreateItemU1(0); SECS_ITEM* ptr_item_First_2_2 = SecsCreateItemList(0); SecsListItemAppend(ptr_item_First,ptr_item_First_1); SecsListItemAppend(ptr_item_First_1,ptr_item_First_1_1); SecsListItemAppend(ptr_item_First_1_1,ptr_item_First_1_1_1); SecsListItemAppend(ptr_item_First_1_1,ptr_item_First_1_1_2); SecsListItemAppend(ptr_item_First_1_1_2,ptr_item_First_1_1_2_1); SecsListItemAppend(ptr_item_First_1_1_2_1,ptr_item_First_1_1_2_1_1); SecsListItemAppend(ptr_item_First_1_1_2_1,ptr_item_First_1_1_2_1_2); SecsListItemAppend(ptr_item_First,ptr_item_First_2); SecsListItemAppend(ptr_item_First_2,ptr_item_First_2_1); SecsListItemAppend(ptr_item_First_2,ptr_item_First_2_2); unsigned long msg_id = SecsSendMessageItem(g_secs_Client, 14, 1, ptr_item_First, SECS_FLAGS_NEED_REPLY);//发送消息主要函数

所发消息如下图

7.断开链接

if(settings.mode = HSMS_PASSIVE)
	{
	   SecsCloseServer(g_secs_Server);
	   DestroySecs(g_secs_Server);
	   g_secs_Server = NULL;
	}
	else
	{
	  SecsDisconnect(g_secs_Server);
	  DestroySecs(g_secs_Server);
	  g_secs_Server = NULL;
	}