X-Git-Url: https://git.sesse.net/?p=cubemap;a=blobdiff_plain;f=stats.cpp;fp=stats.cpp;h=f5916edf2fb696530fe081cad9eee503457c8a70;hp=c9af688327be6d1e2a8745e05b68a68f598baa16;hb=76d52250fd5d7a84d9ae535fd7725d3a466bbb36;hpb=dad4769b3bf91bb45f577625c753994131df8a58

diff --git a/stats.cpp b/stats.cpp
index c9af688..f5916ed 100644
--- a/stats.cpp
+++ b/stats.cpp
@@ -5,6 +5,8 @@
 #include <string.h>
 #include <time.h>
 #include <unistd.h>
+#include <sys/poll.h>
+#include <errno.h>
 #include <vector>
 
 #include "client.h"
@@ -71,9 +73,25 @@ void StatsThread::do_work()
 		}
 
 sleep:
-		int left_to_sleep = stats_interval;
-		do {
-			left_to_sleep = sleep(left_to_sleep);
-		} while (left_to_sleep > 0 && !should_stop);
+		// Wait until the stop_fd pipe is closed, stats_interval timeout,
+		// or a spurious signal. (The latter will cause us to write stats
+		// too often, but that's okay.)
+		pollfd pfd;
+		pfd.fd = stop_fd_read;
+		pfd.events = POLLIN | POLLRDHUP;
+
+		int nfds = poll(&pfd, 1, stats_interval * 1000);
+		if (nfds == 0 || (nfds == -1 && errno == EINTR)) {
+			continue;
+		}
+		if (nfds == 1) {
+			// Should stop.
+			break;
+		}
+		if (nfds == -1) {
+			perror("poll");
+			usleep(100000);
+			continue;
+		}
 	}
 }