* terms.c: Clear fd_set by FD_ZERO() before select().

This commit is contained in:
Araki Ken
2013-03-14 05:18:13 +09:00
committed by Tatsuya Kinoshita
parent 0640eca05c
commit f941b1d562

15
terms.c
View File

@@ -499,17 +499,16 @@ get_pixel_per_cell(int *ppc, int *ppl)
p = buf;
left = sizeof(buf) - 1;
for (i = 0; i < 5; i++) {
tval.tv_usec = 500000; /* 0.5 sec */
for (i = 0; i < 10; i++) {
tval.tv_usec = 200000; /* 0.2 sec * 10 */
tval.tv_sec = 0;
FD_ZERO(&rfd);
FD_SET(tty,&rfd);
if (select(tty+1,&rfd,NULL,NULL,&tval) <= 0 || ! FD_ISSET(tty,&rfd)) {
if (select(tty+1,&rfd,NULL,NULL,&tval) <= 0 || ! FD_ISSET(tty,&rfd))
continue;
}
if ((len = read(tty,p,left)) <= 0) {
return 0;
}
if ((len = read(tty,p,left)) <= 0)
continue;
p[len] = '\0';
if (sscanf(buf,"\x1b[4;%d;%dt\x1b[8;%d;%dt",&hp,&wp,&hc,&wc) == 4) {
@@ -518,7 +517,7 @@ get_pixel_per_cell(int *ppc, int *ppl)
return 1;
}
p = buf + len;
p += len;
left -= len;
}