On Mon, 2003-02-10 at 18:03, Dorin Lazar wrote:
> On Monday 10 February 2003 17:52, Florin Malita wrote:
> > Apeluri blocante la trimiterea datelor catre consumator presupun, nu
> > vad de ce nu ar putea face blocking read de pe socket.
> Imposibilitatea de a realiza faptul ca a expirat o perioada te timp
> (folosirea lui SIGALRM e exclusa, scriu o biblioteca).
TIP: Se poate face blocking read cu timeout - bagi un select inainte de
read:
ssize_t read_tout(int fd, void *buf, size_t count, int tout_sec){
fd_set rd_set;
struct timeval tv;
int res;
FD_ZERO(&rd_set);
FD_SET(fd, &rd_set);
tv.tv_sec = tout_sec;
tv.tv_usec = 0;
/* blocking cel mult tout_sec */
if((res = select(fd + 1, &rd_set, NULL, NULL, &tv)) <= 0){
/* error or timeout */
return res;
}
/* acum read nu mai e blocking */
return read(sock, buf, count);
}
spor
--
Florin Malita web: http://www.malinux.net
public key: http://www.malinux.net/data/fmalita.gpg
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