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fix a bug: misuse fdset in FD_SET and FD_ISSET

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Vincent Wei
2020-11-10 19:49:21 +08:00
parent 9ff29ccb94
commit b47d207bd2
1 changed files with 6 additions and 6 deletions
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12
src/ial/singletouchkey.c
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@@ -74,15 +74,15 @@ static int get_touch_data (short *x, short *y, short *button)
while (read (sg_tp_event_fd, &data, sizeof (data)) == sizeof (data)) {
/* return for end of touch data sequece. */
/* return for end of event data sequece. */
if (data.type == EV_SYN) {
switch (data.code) {
case SYN_REPORT:
case SYN_MT_REPORT:
break;
case SYN_DROPPED:
default:
_WRN_PRINTF ("unknow event code for EV_SYN event: 0x%x, 0x%x\n", data.code, data.value);
/* do not update */
return -1;
}
@@ -174,22 +174,22 @@ static int wait_event (int which, int maxfd, fd_set *in, fd_set *out, fd_set *ex
FD_ZERO (in);
}
FD_SET (sg_tp_event_fd, &rfds);
FD_SET (sg_tp_event_fd, in);
if (sg_tp_event_fd > maxfd)
maxfd = sg_tp_event_fd;
if (sg_key_event_fd >= 0) {
FD_SET (sg_key_event_fd, &rfds);
FD_SET (sg_key_event_fd, in);
if (sg_key_event_fd > maxfd)
maxfd = sg_key_event_fd;
}
e = select (maxfd + 1, in, out, except, timeout);
if (e > 0) {
if (FD_ISSET (sg_tp_event_fd, &rfds)) {
if (FD_ISSET (sg_tp_event_fd, in)) {
retvalue |= IAL_MOUSEEVENT;
}
else if (sg_key_event_fd >= 0 && FD_ISSET (sg_key_event_fd, &rfds)) {
else if (sg_key_event_fd >= 0 && FD_ISSET (sg_key_event_fd, in)) {
retvalue |= IAL_KEYEVENT;
}
}