oflush.c

异步通讯C语言例行子程序

/* A module of ASYNCx.LIB version 1.02 */

#include <dos.h>
#include "asyncdef.h"

/***************************************************
 Discard any data that may be in p's output buffer.
***************************************************/
int a_oflush(register ASYNC *p)
{if (p)
  {disable();
   p->obufhead=p->obuftail=p->obuf;
   enable();
   return 0;
  }
 else
   return -1;
} /* end of a_oflush(p) */