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uring_linux_ops.go
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/
uring_linux_ops.go
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// ©Hayabusa Cloud Co., Ltd. 2022. All rights reserved.
// Use of this source code is governed by a MIT-style
// license that can be found in the LICENSE file.
//go:build linux
package sox
import (
"context"
"golang.org/x/sys/unix"
"math"
"unsafe"
)
const (
IORING_OP_NOP uint8 = iota
IORING_OP_READV
IORING_OP_WRITEV
IORING_OP_FSYNC
IORING_OP_READ_FIXED
IORING_OP_WRITE_FIXED
IORING_OP_POLL_ADD
IORING_OP_POLL_REMOVE
IORING_OP_SYNC_FILE_RANGE
IORING_OP_SENDMSG
IORING_OP_RECVMSG
IORING_OP_TIMEOUT
IORING_OP_TIMEOUT_REMOVE
IORING_OP_ACCEPT
IORING_OP_ASYNC_CANCEL
IORING_OP_LINK_TIMEOUT
IORING_OP_CONNECT
IORING_OP_FALLOCATE
IORING_OP_OPENAT
IORING_OP_CLOSE
IORING_OP_FILES_UPDATE
IORING_OP_STATX
IORING_OP_READ
IORING_OP_WRITE
IORING_OP_FADVISE
IORING_OP_MADVISE
IORING_OP_SEND
IORING_OP_RECV
IORING_OP_OPENAT2
IORING_OP_EPOLL_CTL
IORING_OP_SPLICE
IORING_OP_PROVIDE_BUFFERS
IORING_OP_REMOVE_BUFFERS
IORING_OP_TEE
IORING_OP_SHUTDOWN
IORING_OP_RENAMEAT
IORING_OP_UNLINKAT
IORING_OP_MKDIRAT
IORING_OP_SYMLINKAT
IORING_OP_LINKAT
IORING_OP_MSG_RING
IORING_OP_FSETXATTR
IORING_OP_SETXATTR
IORING_OP_FGETXATTR
IORING_OP_GETXATTR
IORING_OP_SOCKET
IORING_OP_URING_CMD
IORING_OP_SEND_ZC
IORING_OP_SENDMSG_ZC
IORING_OP_READ_MULTISHOT
IORING_OP_WAITID
IORING_OP_FUTEX_WAIT
IORING_OP_FUTEX_WAKE
IORING_OP_FUTEX_WAITV
IORING_OP_FIXED_FD_INSTALL
)
func (ur *ioUring) nop(ctx context.Context, flags uint8, fd int) error {
return ur.submit3(ContextWithUserdata(ctx, ioUringFd(fd)), IORING_OP_NOP, flags, 0, fd, 0, 0)
}
func (ur *ioUring) readv(ctx context.Context, flags uint8, fd int, iov [][]byte) error {
if iov == nil || len(iov) < 1 {
return ErrInvalidParam
}
opcode := IORING_OP_READV
addr, n := ioVecFromBytesSlice(iov)
return ur.submit6(ContextWithUserdata(ctx, ioUringFd(fd)), opcode, flags, 0, fd, 0, uint64(addr), n, unix.MSG_WAITALL)
}
func (ur *ioUring) writev(ctx context.Context, flags uint8, fd int, iov [][]byte) error {
if iov == nil || len(iov) < 1 {
return ErrInvalidParam
}
opcode := IORING_OP_WRITEV
addr, n := ioVecFromBytesSlice(iov)
return ur.submit3(ContextWithUserdata(ctx, ioUringFd(fd)), opcode, flags, 0, fd, uint64(addr), n)
}
func (ur *ioUring) fsync(ctx context.Context, flags uint8, fd int) error {
return ur.submit3(ContextWithUserdata(ctx, ioUringFd(fd)), IORING_OP_FSYNC, flags, 0, fd, 0, 0)
}
func (ur *ioUring) readFixed(ctx context.Context, flags uint8, fd int, i int) (buf []byte, err error) {
if i < 0 || i >= len(ur.bufs) {
return nil, ErrInvalidParam
}
opcode := IORING_OP_READ_FIXED
addr := uint64(uintptr(unsafe.Pointer(unsafe.SliceData(ur.bufs[i]))))
return ur.bufs[i], ur.submit9(ContextWithUserdata(ctx, ioUringFd(fd)), opcode, flags, 0, fd, 0, addr, len(ur.bufs[i]), unix.MSG_WAITALL, uint16(i), 0, 0)
}
func (ur *ioUring) writeFixed(ctx context.Context, flags uint8, fd int, i int, n int) error {
if i < 0 || i >= len(ur.bufs) || n < 0 || n > len(ur.bufs[i]) {
return ErrInvalidParam
}
opcode := IORING_OP_WRITE_FIXED
addr := uint64(uintptr(unsafe.Pointer(unsafe.SliceData(ur.bufs[i]))))
return ur.submit9(ContextWithUserdata(ctx, ioUringFd(fd)), opcode, flags, 0, fd, 0, addr, n, 0, uint16(i), 0, 0)
}
func (ur *ioUring) pollAdd(ctx context.Context, flags uint8, fd int, how int, events int) error {
return ur.submit6(ctx, IORING_OP_POLL_ADD, flags, 0, fd, 0, 0, how, uint32(events))
}
func (ur *ioUring) pollRemove(ctx context.Context, flags uint8) error {
return ur.submit3(ctx, IORING_OP_POLL_REMOVE, flags, 0, 0, 0, 0)
}
func (ur *ioUring) syncFileRange(ctx context.Context, flags uint8, fd int, off int64, n int, uflags int) error {
return ur.submit6(ctx, IORING_OP_SYNC_FILE_RANGE, flags, 0, fd, uint64(off), 0, n, uint32(uflags))
}
func (ur *ioUring) sendmsg(ctx context.Context, flags uint8, ioprio uint16, fd int, buffers [][]byte, oob []byte, to unix.Sockaddr) error {
saPtr, saN, err := unsafe.Pointer(uintptr(0)), 0, error(nil)
if to != nil {
saPtr, saN, err = sockaddr(to)
if err != nil {
return err
}
}
opcode := IORING_OP_SENDMSG
addr, n := ioVecFromBytesSlice(buffers)
msg := unix.Msghdr{
Name: (*byte)(saPtr),
Namelen: uint32(saN),
Iov: (*unix.Iovec)(unsafe.Pointer(addr)),
Iovlen: uint64(n),
Control: nil,
Controllen: 0,
}
if len(oob) > 0 {
msg.Control = &oob[0]
msg.Controllen = uint64(len(oob))
}
return ur.submit6(ContextWithUserdata(ctx, ioUringFd(fd)), opcode, flags, ioprio, fd, 0, uint64(addr), 1, 0)
}
func (ur *ioUring) recvmsg(ctx context.Context, flags uint8, ioprio uint16, fd int, buffers [][]byte, oob []byte) error {
from := unix.RawSockaddrAny{}
opcode := IORING_OP_RECVMSG
addr, n := ioVecFromBytesSlice(buffers)
msg := unix.Msghdr{
Name: (*byte)(unsafe.Pointer(&from)),
Namelen: uint32(unix.SizeofSockaddrAny),
Iov: (*unix.Iovec)(unsafe.Pointer(addr)),
Iovlen: uint64(n),
Control: nil,
Controllen: 0,
}
if len(oob) > 0 {
msg.Control = &oob[0]
msg.Controllen = uint64(len(oob))
}
return ur.submit6(ContextWithUserdata(ctx, ioUringFd(fd)), opcode, flags, ioprio, fd, 0, uint64(addr), 1, unix.MSG_WAITALL)
}
const (
IORING_TIMEOUT_ABS = 1 << iota
IORING_TIMEOUT_UPDATE
IORING_TIMEOUT_BOOTTIME
IORING_TIMEOUT_REALTIME
IORING_LINK_TIMEOUT_UPDATE
IORING_TIMEOUT_ETIME_SUCCESS
IORING_TIMEOUT_MULTISHOT
IORING_TIMEOUT_CLOCK_MASK = IORING_TIMEOUT_BOOTTIME | IORING_TIMEOUT_REALTIME
IORING_TIMEOUT_UPDATE_MASK = IORING_TIMEOUT_UPDATE | IORING_LINK_TIMEOUT_UPDATE
)
func (ur *ioUring) timeout(ctx context.Context, flags uint8, cnt int, ts *unix.Timespec, uflags int) error {
addr := uint64(uintptr(unsafe.Pointer(ts)))
return ur.submit6(ctx, IORING_OP_TIMEOUT, flags, 0, 0, uint64(cnt), addr, 1, uint32(uflags))
}
func (ur *ioUring) timeoutUpdate(ctx context.Context, flags uint8, userData unsafe.Pointer, ts *unix.Timespec, uflags int) error {
addr := uint64(uintptr(userData))
addr2 := uint64(uintptr(unsafe.Pointer(ts)))
return ur.submit6(ctx, IORING_OP_TIMEOUT_REMOVE, flags, 0, 0, addr2, addr, 0, uint32(uflags|IORING_TIMEOUT_UPDATE))
}
func (ur *ioUring) timeoutRemove(ctx context.Context, flags uint8, userData unsafe.Pointer, uflags int) error {
addr := uint64(uintptr(userData))
return ur.submit6(ctx, IORING_OP_TIMEOUT_REMOVE, flags, 0, 0, 0, addr, 0, uint32(uflags))
}
const (
IORING_ACCEPT_MULTISHOT = 1 << 0
IORING_ACCEPT_DONTWAIT = 1 << 1
IORING_ACCEPT_POLL_FIRST = 1 << 2
)
func (ur *ioUring) accept(ctx context.Context, flags uint8, ioprio uint16, fd int) error {
return ur.submit6(ContextWithUserdata(ctx, ioUringFd(fd)), IORING_OP_ACCEPT, flags, ioprio, fd, 0, 0, 0, unix.SOCK_NONBLOCK|unix.SOCK_CLOEXEC)
}
func (ur *ioUring) asyncCancel(ctx context.Context, flags uint8, userdata *ioUringCtx) error {
addr := uint64(uintptr(unsafe.Pointer(userdata)))
return ur.submit3(ctx, IORING_OP_ASYNC_CANCEL, flags, 0, 0, addr, 0)
}
func (ur *ioUring) linkTimeout(ctx context.Context, flags uint8, ts *unix.Timespec, uflags int) error {
addr := uint64(uintptr(unsafe.Pointer(ts)))
return ur.submit6(ctx, IORING_OP_LINK_TIMEOUT, flags, 0, 0, 0, addr, 1, uint32(uflags))
}
func (ur *ioUring) connect(ctx context.Context, flags uint8, fd int, sa unix.Sockaddr) error {
ptr, n, err := sockaddr(sa)
if err != nil {
return err
}
return ur.submit6(ContextWithUserdata(ctx, ioUringFd(fd)), IORING_OP_CONNECT, flags, 0, fd, uint64(n), uint64(uintptr(ptr)), 0, 0)
}
func (ur *ioUring) fAllocate(ctx context.Context, flags uint8, fd int, mode uint32, off int64, len int64) error {
return ur.submit6(ContextWithUserdata(ctx, ioUringFd(fd)), IORING_OP_FALLOCATE, flags, 0, fd, uint64(off), uint64(len), int(mode), 0)
}
func (ur *ioUring) openAt(ctx context.Context, flags uint8, dirfd int, pathname string, uflags int, mode uint32) error {
ptr, err := unix.BytePtrFromString(pathname)
if err != nil {
return err
}
addr := uint64(uintptr(unsafe.Pointer(ptr)))
return ur.submit6(ContextWithUserdata(ctx, ioUringFd(dirfd)), IORING_OP_OPENAT, flags, 0, dirfd, 0, addr, int(mode), uint32(uflags|unix.O_LARGEFILE))
}
func (ur *ioUring) close(ctx context.Context, flags uint8, fd int) error {
return ur.submit3(ContextWithUserdata(ctx, ioUringFd(fd)), IORING_OP_CLOSE, flags, 0, fd, 0, 0)
}
func (ur *ioUring) statx(ctx context.Context, flags uint8, dirfd int, path string, uflags int, mask int, stat *unix.Statx_t) error {
ptr, err := unix.BytePtrFromString(path)
if err != nil {
return err
}
addr := uint64(uintptr(unsafe.Pointer(ptr)))
off := uint64(uintptr(unsafe.Pointer(stat)))
return ur.submit6(ContextWithUserdata(ctx, ioUringFd(dirfd)), IORING_OP_STATX, flags, 0, dirfd, off, addr, mask, uint32(uflags))
}
func (ur *ioUring) read(ctx context.Context, flags uint8, fd int, p []byte) error {
if p == nil || len(p) < 1 {
return ErrInvalidParam
}
opcode := IORING_OP_READ
addr := uint64(uintptr(unsafe.Pointer(unsafe.SliceData(p))))
return ur.submit3(ContextWithUserdata(ctx, ioUringFd(fd)), opcode, flags, 0, fd, addr, len(p))
}
func (ur *ioUring) readWithBufferSelect(ctx context.Context, flags uint8, fd int, n int, group uint16) error {
opcode := IORING_OP_READ
flags |= IOSQE_BUFFER_SELECT
return ur.submit9(ContextWithUserdata(ctx, ioUringFd(fd)), opcode, flags, 0, fd, 0, 0, n, 0, group, 0, 0)
}
func (ur *ioUring) write(ctx context.Context, flags uint8, fd int, p []byte, n int) error {
if p == nil || len(p) < 1 {
return ErrInvalidParam
}
opcode := IORING_OP_WRITE
addr := uint64(uintptr(unsafe.Pointer(unsafe.SliceData(p))))
return ur.submit3(ContextWithUserdata(ctx, ioUringFd(fd)), opcode, flags, 0, fd, addr, n)
}
func (ur *ioUring) fadvise(ctx context.Context, flags uint8, fd int, offset int64, n int, advice int) error {
return ur.submit6(ContextWithUserdata(ctx, ioUringFd(fd)), IORING_OP_FADVISE, flags, 0, fd, uint64(offset), 0, n, uint32(advice))
}
func (ur *ioUring) madvise(ctx context.Context, flags uint8, b []byte, advice int) error {
addr := uint64(uintptr(unsafe.Pointer(unsafe.SliceData(b))))
return ur.submit6(ctx, IORING_OP_MADVISE, flags, 0, 0, 0, addr, len(b), uint32(advice))
}
const (
IORING_RECVSEND_POLL_FIRST = 1 << iota
IORING_RECV_MULTISHOT
IORING_RECVSEND_FIXED_BUF
IORING_SEND_ZC_REPORT_USAGE
IORING_RECVSEND_BUNDLE
)
func (ur *ioUring) send(ctx context.Context, flags uint8, fd int, p []byte) error {
if p == nil || len(p) < 1 {
return ErrInvalidParam
}
opcode := IORING_OP_SEND
addr := uint64(uintptr(unsafe.Pointer(unsafe.SliceData(p))))
return ur.submit3(ContextWithUserdata(ctx, ioUringFd(fd)), opcode, flags, 0, fd, addr, len(p))
}
func (ur *ioUring) receive(ctx context.Context, flags uint8, ioprio uint16, fd int, p []byte) error {
if p == nil || len(p) < 1 {
return ErrInvalidParam
}
opcode := IORING_OP_RECV
addr := uint64(uintptr(unsafe.Pointer(unsafe.SliceData(p))))
return ur.submit6(ContextWithUserdata(ctx, ioUringFd(fd)), opcode, flags, ioprio, fd, 0, addr, len(p), unix.MSG_WAITALL)
}
func (ur *ioUring) receiveWithBufferSelect(ctx context.Context, flags uint8, ioprio uint16, fd int, n int, group uint16) error {
opcode := IORING_OP_RECV
flags |= IOSQE_BUFFER_SELECT
ctx = ContextWithUserdata(ctx, bufferGroupIndex(group))
return ur.submit9(ContextWithUserdata(ctx, ioUringFd(fd)), opcode, flags, ioprio, fd, 0, 0, n, 0, group, 0, 0)
}
func (ur *ioUring) openAt2(ctx context.Context, flags uint8, dirfd int, pathname string, how *unix.OpenHow) error {
ptr, err := unix.BytePtrFromString(pathname)
if err != nil {
return err
}
addr := uint64(uintptr(unsafe.Pointer(ptr)))
off := uint64(uintptr(unsafe.Pointer(how)))
return ur.submit6(ContextWithUserdata(ctx, ioUringFd(dirfd)), IORING_OP_OPENAT2, flags, 0, dirfd, off, addr, unix.SizeofOpenHow, 0)
}
func (ur *ioUring) epollCtl(ctx context.Context, flags uint8, epfd int, op int, fd int, events uint32) error {
e := unix.EpollEvent{Events: events, Fd: int32(fd)}
opcode := IORING_OP_EPOLL_CTL
addr := uint64(uintptr(unsafe.Pointer(&e)))
return ur.submit6(ContextWithUserdata(ctx, ioUringFd(epfd)), opcode, flags, 0, epfd, uint64(fd), addr, op, 0)
}
func (ur *ioUring) epollAdd(ctx context.Context, epfd int, fd int, events uint32) error {
return ur.epollCtl(ContextWithUserdata(ctx, ioUringFd(epfd)), 0, epfd, unix.EPOLL_CTL_ADD, fd, events)
}
func (ur *ioUring) epollMod(ctx context.Context, epfd int, fd int, events uint32) error {
return ur.epollCtl(ContextWithUserdata(ctx, ioUringFd(epfd)), 0, epfd, unix.EPOLL_CTL_MOD, fd, events)
}
func (ur *ioUring) epollDel(ctx context.Context, epfd int, fd int) error {
return ur.epollCtl(ContextWithUserdata(ctx, ioUringFd(epfd)), 0, epfd, unix.EPOLL_CTL_DEL, fd, 0)
}
func (ur *ioUring) splice(ctx context.Context, flags uint8, rfd int, rOff *int64, wfd int, wOff *int64, n int, uflags int) error {
rOffVal, wOffVal := uint64(math.MaxUint64), uint64(math.MaxUint64)
if rOff != nil {
rOffVal = uint64(*rOff)
}
if wOff != nil {
wOffVal = uint64(*wOff)
}
return ur.submit9(ContextWithUserdata(ctx, ioUringFd(wfd)), IORING_OP_SPLICE, flags, 0, wfd, wOffVal, rOffVal, n, uint32(uflags), 0, 0, rfd)
}
func (ur *ioUring) provideBuffers(ctx context.Context, flags uint8, num int, starting int, addr unsafe.Pointer, size int, group uint16) error {
return ur.submit9(ctx, IORING_OP_PROVIDE_BUFFERS, flags, 0, num, uint64(starting), uint64(uintptr(addr)), size, 0, group, 0, 0)
}
func (ur *ioUring) removeBuffers(ctx context.Context, flags uint8, num int, group uint16) error {
return ur.submit9(ctx, IORING_OP_REMOVE_BUFFERS, flags, 0, num, 0, 0, 0, 0, group, 0, 0)
}
func (ur *ioUring) tee(ctx context.Context, flags uint8, rfd int, wfd int, n int, uflags int) error {
return ur.submit9(ContextWithUserdata(ctx, ioUringFd(wfd)), IORING_OP_TEE, flags, 0, wfd, 0, 0, n, uint32(uflags), 0, 0, rfd)
}
func (ur *ioUring) shutdown(ctx context.Context, flags uint8, fd int, how int) error {
return ur.submit3(ContextWithUserdata(ctx, ioUringFd(fd)), IORING_OP_SHUTDOWN, flags, 0, fd, 0, how)
}
func (ur *ioUring) renameAt(ctx context.Context, flags uint8, oldPath, newPath string, uflags int) error {
oldPtr, err := unix.BytePtrFromString(oldPath)
if err != nil {
return err
}
oldAddr := uint64(uintptr(unsafe.Pointer(oldPtr)))
newPtr, err := unix.BytePtrFromString(newPath)
if err != nil {
return err
}
newAddr := uint64(uintptr(unsafe.Pointer(newPtr)))
return ur.submit6(ctx, IORING_OP_RENAMEAT, flags, 0, unix.AT_FDCWD, newAddr, oldAddr, unix.AT_FDCWD, uint32(uflags))
}
func (ur *ioUring) unlinkAt(ctx context.Context, flags uint8, dirfd int, pathname string, uflags int) error {
ptr, err := unix.BytePtrFromString(pathname)
if err != nil {
return err
}
addr := uint64(uintptr(unsafe.Pointer(ptr)))
return ur.submit6(ContextWithUserdata(ctx, ioUringFd(dirfd)), IORING_OP_UNLINKAT, flags, 0, dirfd, 0, addr, 0, uint32(uflags))
}
func (ur *ioUring) mkdirAt(ctx context.Context, flags uint8, dirfd int, pathname string, uflags int, mode uint32) error {
ptr, err := unix.BytePtrFromString(pathname)
if err != nil {
return err
}
addr := uint64(uintptr(unsafe.Pointer(ptr)))
return ur.submit6(ContextWithUserdata(ctx, ioUringFd(dirfd)), IORING_OP_MKDIRAT, flags, 0, dirfd, 0, addr, int(mode), uint32(uflags))
}
func (ur *ioUring) symlinkAt(ctx context.Context, flags uint8, oldPath string, newDirfd int, newPath string) error {
ptr, err := unix.BytePtrFromString(oldPath)
if err != nil {
return err
}
oldAddr := uint64(uintptr(unsafe.Pointer(ptr)))
ptr, err = unix.BytePtrFromString(newPath)
if err != nil {
return err
}
newAddr := uint64(uintptr(unsafe.Pointer(ptr)))
return ur.submit6(ContextWithUserdata(ctx, ioUringFd(newDirfd)), IORING_OP_SYMLINKAT, flags, 0, newDirfd, newAddr, oldAddr, 0, 0)
}
func (ur *ioUring) linkAt(ctx context.Context, flags uint8, oldDirfd int, oldPath string, newDirfd int, newPath string, uflags int) error {
ptr, err := unix.BytePtrFromString(oldPath)
if err != nil {
return err
}
oldAddr := uint64(uintptr(unsafe.Pointer(ptr)))
ptr, err = unix.BytePtrFromString(newPath)
if err != nil {
return err
}
newAddr := uint64(uintptr(unsafe.Pointer(ptr)))
return ur.submit6(ContextWithUserdata(ctx, ioUringFd(newDirfd)), IORING_OP_LINKAT, flags, 0, oldDirfd, newAddr, oldAddr, newDirfd, uint32(uflags))
}
func (ur *ioUring) msgRing(ctx context.Context, flags uint8, targetFd int, userData int64, res int32) error {
return ur.submit6(ContextWithUserdata(ctx, ioUringFd(targetFd)), IORING_OP_MSG_RING, flags, 0, targetFd, uint64(userData), 0, int(res), 0)
}
func (ur *ioUring) socket(ctx context.Context, flags uint8, domain, typ, proto int, fileIndex uint32) error {
return ur.submit9(ctx, IORING_OP_SOCKET, flags, 0, domain, uint64(typ), 0, proto, 0, 0, 0, int(fileIndex))
}
func (ur *ioUring) sendZeroCopy(ctx context.Context, flags uint8, fd int, p []byte, msgFlags uint32) error {
addr := uint64(uintptr(unsafe.Pointer(unsafe.SliceData(p))))
return ur.submit6(ContextWithUserdata(ctx, ioUringFd(fd)), IORING_OP_SEND_ZC, flags, 0, fd, 0, addr, len(p), msgFlags)
}
func (ur *ioUring) sendToZeroCopy(ctx context.Context, flags uint8, target Sockaddr, p []byte, msgFlags uint32) error {
addr2, addrLen, err := sockaddr(target)
if err != nil {
return err
}
addr := uint64(uintptr(unsafe.Pointer(unsafe.SliceData(p))))
return ur.submit9(ctx, IORING_OP_SEND_ZC, flags, 0, 0, uint64(uintptr(addr2)), addr, len(p), msgFlags, 0, 0, addrLen<<16)
}