[qmail] / timeoutread.c

#include "timeoutread.h"
#include "select.h"
#include "error.h"
#include "readwrite.h"

int timeoutread(t,fd,buf,len) int t; int fd; char *buf; int len;
{
  fd_set rfds;
  struct timeval tv;

  tv.tv_sec = t;
  tv.tv_usec = 0;

  FD_ZERO(&rfds);
  FD_SET(fd,&rfds);

  if (select(fd + 1,&rfds,(fd_set *) 0,(fd_set *) 0,&tv) == -1) return -1;
  if (FD_ISSET(fd,&rfds)) return read(fd,buf,len);

  errno = error_timeout;
  return -1;
}
Commit	Line	Data
2117e02e MW	1	#include "timeoutread.h"
	2	#include "select.h"
	3	#include "error.h"
	4	#include "readwrite.h"
	5
212b6f5d	6	int timeoutread(t,fd,buf,len) int t; int fd; char *buf; int len;
2117e02e MW	7	{
	8	fd_set rfds;
	9	struct timeval tv;
2117e02e	10
212b6f5d	11	tv.tv_sec = t;
2117e02e MW	12	tv.tv_usec = 0;
2117e02e MW	13
2117e02e MW	14	FD_ZERO(&rfds);
	15	FD_SET(fd,&rfds);
	16
	17	if (select(fd + 1,&rfds,(fd_set ) 0,(fd_set ) 0,&tv) == -1) return -1;
	18	if (FD_ISSET(fd,&rfds)) return read(fd,buf,len);
	19
2117e02e MW	20	errno = error_timeout;
	21	return -1;
	22	}