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-rw-r--r--libc/sysdeps/linux/common/sys/epoll.h14
1 files changed, 14 insertions, 0 deletions
diff --git a/libc/sysdeps/linux/common/sys/epoll.h b/libc/sysdeps/linux/common/sys/epoll.h
index 5551bed0d..5138d77a9 100644
--- a/libc/sysdeps/linux/common/sys/epoll.h
+++ b/libc/sysdeps/linux/common/sys/epoll.h
@@ -19,6 +19,7 @@
#define _SYS_EPOLL_H 1
#include <stdint.h>
+#include <sys/ioctl.h>
#include <sys/types.h>
/* Get __sigset_t. */
@@ -87,6 +88,19 @@ struct epoll_event
epoll_data_t data; /* User data variable */
} __EPOLL_PACKED;
+struct epoll_params
+{
+ uint32_t busy_poll_usecs;
+ uint16_t busy_poll_budget;
+ uint8_t prefer_busy_poll;
+
+ /* pad the struct to a multiple of 64bits */
+ uint8_t __pad;
+};
+
+#define EPOLL_IOC_TYPE 0x8A
+#define EPIOCSPARAMS _IOW(EPOLL_IOC_TYPE, 0x01, struct epoll_params)
+#define EPIOCGPARAMS _IOR(EPOLL_IOC_TYPE, 0x02, struct epoll_params)
__BEGIN_DECLS