www.pudn.com > wsc4c30.zip > EVENT.C

/*  
** event.c 
*/ 
 
#include  
#include  
#include  
#include  
#include  
 
#include "wsc.h" 
  
typedef struct 
{int Port; 
 int BytesRead; 
} ParamType; 
 
// 'TheThread' handles all incoming serial data  
// independently of the main program. 
 
void TheThread(PVOID pvoid) 
{int Code; 
 char Buffer[128]; 
 ParamType *ParamPtr; 
 ParamPtr = (ParamType *) pvoid; 
 while(1) 
   {Sleep(0); 
    /* grab all available data */ 
    Code = SioGets(ParamPtr->Port,(LPSTR)Buffer,127); 
    if(Code>0)  
      {ParamPtr->BytesRead += Code; 
       Buffer[Code] = '\0'; 
       printf("%s",Buffer); 
       fflush(stdout); 
      } 
    /* SioEvent will block this thread until there is more data */ 
    SioEvent(ParamPtr->Port, EV_RXCHAR); 
   } 
} 
 
/* trap WSC error codes */ 
 
int ErrorCheck(int Port, int Code) 
{if(Code<0) 
   {char Temp[41]; 
    SioWinError(Temp,80); 
    printf("ERROR %d: %s",Code, Temp); 
    SioDone(Port); 
    exit(1); 
   } 
 return Code; 
} 
 
/* display error & exit */ 
 
void SayError(char *Msg) 
{printf("ERROR: %s: %d\n", Msg, GetLastError() ); 
 exit(1); 
} 
 
/*** main ***/ 
 
void main(int argc, char *argv[]) 
{int Version; 
 DWORD ThreadID; 
 HANDLE ThreadHandle; 
 ParamType Params; 
 char c; 
 int Port; 
 int Baud; 
 /* process args */ 
 if(argc!=3) 
   {printf("Usage: EVENT  \n"); 
    return; 
   } 
 Port = atoi(argv[1]) - 1; 
 Baud = atoi(argv[2]); 
 Version = SioInfo('V'); 
 printf("WSC Version %d.%d.%d\n", (Version>>8),0x0f&(Version>>4),0x0f&Version); 
 /* reset the port */ 
 ErrorCheck( Port, SioReset(Port,1024,512) ); 
 ErrorCheck( Port, SioBaud(Port,Baud) ); 
 /* set DTR and RTS */ 
 SioDTR(Port,'S'); 
 SioRTS(Port,'S') ; 
 /* save info for thread */ 
 Params.Port = Port; 
 Params.BytesRead =  0; 
 /* start thread to handle incoming serial */ 
 ThreadHandle = CreateThread(0,1024,(LPTHREAD_START_ROUTINE)TheThread,(void *)&Params,0,&ThreadID); 
 if(ThreadHandle==0) 
   {printf("Could not start thread\n"); 
    SioDone(Port); 
    exit(1); 
   } 
 /* start main loop */ 
 printf("Type ^Z to abort...\n"); 
 while(1) 
   {/* wait for user to type a character (no echo) */ 
    c = getch(); 
    /* quit if user typed ^Z */ 
    if(c==0x1a) break; 
    /* transmit this character */ 
    SioPutc(Port,c); 
    Sleep(0); 
   } 
 SuspendThread(ThreadHandle); 
 printf("\n_____________________\n"); 
 printf("%d bytes were received\n", Params.BytesRead); 
 SioDone(Port); 
} /* end main */