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Replaced select with poll in JoystickImpl to function even when a large number of file descriptors are open.

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binary1248 2022-02-19 03:52:47 +01:00 committed by Lukas Dürrenberger
parent 9d28bf7eb2
commit 3315456dc3
1 changed files with 3 additions and 6 deletions
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9
src/SFML/Window/Unix/JoystickImpl.cpp
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@ -29,6 +29,7 @@
#include <SFML/System/Err.hpp>
#include <linux/joystick.h>
#include <libudev.h>
#include <poll.h>
#include <unistd.h>
#include <fcntl.h>
#include <errno.h>
@ -253,13 +254,9 @@ namespace
// This will not fail since we make sure udevMonitor is valid
int monitorFd = udev_monitor_get_fd(udevMonitor);
fd_set descriptorSet;
FD_ZERO(&descriptorSet);
FD_SET(monitorFd, &descriptorSet);
timeval timeout = {0, 0};
pollfd fds{ monitorFd, POLLIN, 0 };
return (select(monitorFd + 1, &descriptorSet, NULL, NULL, &timeout) > 0) &&
FD_ISSET(monitorFd, &descriptorSet);
return (poll(&fds, 1, 0) > 0) && ((fds.revents & POLLIN) != 0);
}
// Get a property value from a udev device