diff options
| author | Joe Damato <jdamato@fastly.com> | 2024-05-29 07:23:50 +0000 |
|---|---|---|
| committer | Waldemar Brodkorb <wbx@openadk.org> | 2024-05-31 09:14:19 +0200 |
| commit | 8bb33a2e1f2baec2078581d77e181f1ead5f51aa (patch) | |
| tree | 5721961d8cec967203af4d2f261c31181a9e7b2a | |
| parent | 7be734848bd619c44a3b2639ce164558534111ba (diff) | |
epoll.h: Add epoll ioctls
add two ioctls to get and set struct epoll_params to allow users to
control epoll based busy polling of network sockets.
added to uapi in commit 18e2bf0edf4dd88d9656ec92395aa47392e85b61 (Linux
kernel 6.9 and newer).
Signed-off-by: Joe Damato <jdamato@fastly.com>
| -rw-r--r-- | libc/sysdeps/linux/common/sys/epoll.h | 14 |
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 |