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select() on X display fd to avoid needing timeout

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This commit is contained in:
XANTRONIX Development 2019-06-09 15:50:24 -05:00
parent 0299922b88
commit d5ef5bf962
1 changed files with 8 additions and 9 deletions
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17
examples/cluster.c
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@ -67,7 +67,7 @@ int main(int argc, char **argv) {
hexagram_window *window; hexagram_window *window;
hexagram_cluster *cluster; hexagram_cluster *cluster;
int fd, int fd, fd2,
width = 1024, width = 1024,
height = 480; height = 480;
@ -96,7 +96,8 @@ int main(int argc, char **argv) {
display = hexagram_window_display(window); display = hexagram_window_display(window);
fd = hexagram_can_if_fd(can_if); fd = hexagram_can_if_fd(can_if);
fd2 = hexagram_window_display_fd(window);
/* /*
* Set up the rendering surfaces * Set up the rendering surfaces
@ -119,16 +120,14 @@ int main(int argc, char **argv) {
*/ */
FD_ZERO(&rfds); FD_ZERO(&rfds);
FD_SET(fd, &rfds); FD_SET(fd, &rfds);
FD_SET(fd2, &rfds);
while (1) { while (1) {
struct timeval timeout = { struct timeval now;
.tv_sec = 0,
.tv_usec = 250000
}, now;
int pending, int pending,
nfds = fd + 1; nfds = fd2 + 1;
(void)gettimeofday(&now, NULL); (void)gettimeofday(&now, NULL);
@ -157,7 +156,7 @@ int main(int argc, char **argv) {
memcpy(&rready, &rfds, sizeof(rfds)); memcpy(&rready, &rfds, sizeof(rfds));
if (select(nfds, &rready, NULL, NULL, &timeout) < 0) { if (select(nfds, &rready, NULL, NULL, NULL) < 0) {
break; break;
} }