1 // Copyright 2015 The Go Authors. All rights reserved.
2 // Use of this source code is governed by a BSD-style
3 // license that can be found in the LICENSE file.
11 func EpollCreate(size int) (fd int, err error) {
15 return EpollCreate1(0)
18 //sys EpollWait(epfd int, events []EpollEvent, msec int) (n int, err error) = SYS_EPOLL_PWAIT
19 //sys Fadvise(fd int, offset int64, length int64, advice int) (err error) = SYS_FADVISE64
20 //sys Fchown(fd int, uid int, gid int) (err error)
21 //sys Fstat(fd int, stat *Stat_t) (err error)
22 //sys Fstatat(fd int, path string, stat *Stat_t, flags int) (err error)
23 //sys Fstatfs(fd int, buf *Statfs_t) (err error)
24 //sys Ftruncate(fd int, length int64) (err error)
25 //sysnb Getegid() (egid int)
26 //sysnb Geteuid() (euid int)
27 //sysnb Getgid() (gid int)
28 //sysnb getrlimit(resource int, rlim *Rlimit) (err error)
29 //sysnb Getuid() (uid int)
30 //sys Listen(s int, n int) (err error)
31 //sys Pread(fd int, p []byte, offset int64) (n int, err error) = SYS_PREAD64
32 //sys Pwrite(fd int, p []byte, offset int64) (n int, err error) = SYS_PWRITE64
33 //sys Renameat(olddirfd int, oldpath string, newdirfd int, newpath string) (err error)
34 //sys Seek(fd int, offset int64, whence int) (off int64, err error) = SYS_LSEEK
36 func Select(nfd int, r *FdSet, w *FdSet, e *FdSet, timeout *Timeval) (n int, err error) {
39 ts = &Timespec{Sec: timeout.Sec, Nsec: timeout.Usec * 1000}
41 return Pselect(nfd, r, w, e, ts, nil)
44 //sys sendfile(outfd int, infd int, offset *int64, count int) (written int, err error)
45 //sys setfsgid(gid int) (prev int, err error)
46 //sys setfsuid(uid int) (prev int, err error)
47 //sysnb Setregid(rgid int, egid int) (err error)
48 //sysnb Setresgid(rgid int, egid int, sgid int) (err error)
49 //sysnb Setresuid(ruid int, euid int, suid int) (err error)
50 //sysnb setrlimit(resource int, rlim *Rlimit) (err error)
51 //sysnb Setreuid(ruid int, euid int) (err error)
52 //sys Shutdown(fd int, how int) (err error)
53 //sys Splice(rfd int, roff *int64, wfd int, woff *int64, len int, flags int) (n int64, err error)
55 func Stat(path string, stat *Stat_t) (err error) {
56 return Fstatat(AT_FDCWD, path, stat, 0)
59 func Lchown(path string, uid int, gid int) (err error) {
60 return Fchownat(AT_FDCWD, path, uid, gid, AT_SYMLINK_NOFOLLOW)
63 func Lstat(path string, stat *Stat_t) (err error) {
64 return Fstatat(AT_FDCWD, path, stat, AT_SYMLINK_NOFOLLOW)
67 //sys Statfs(path string, buf *Statfs_t) (err error)
68 //sys SyncFileRange(fd int, off int64, n int64, flags int) (err error)
69 //sys Truncate(path string, length int64) (err error)
71 func Ustat(dev int, ubuf *Ustat_t) (err error) {
75 //sys accept(s int, rsa *RawSockaddrAny, addrlen *_Socklen) (fd int, err error)
76 //sys accept4(s int, rsa *RawSockaddrAny, addrlen *_Socklen, flags int) (fd int, err error)
77 //sys bind(s int, addr unsafe.Pointer, addrlen _Socklen) (err error)
78 //sys connect(s int, addr unsafe.Pointer, addrlen _Socklen) (err error)
79 //sysnb getgroups(n int, list *_Gid_t) (nn int, err error)
80 //sysnb setgroups(n int, list *_Gid_t) (err error)
81 //sys getsockopt(s int, level int, name int, val unsafe.Pointer, vallen *_Socklen) (err error)
82 //sys setsockopt(s int, level int, name int, val unsafe.Pointer, vallen uintptr) (err error)
83 //sysnb socket(domain int, typ int, proto int) (fd int, err error)
84 //sysnb socketpair(domain int, typ int, proto int, fd *[2]int32) (err error)
85 //sysnb getpeername(fd int, rsa *RawSockaddrAny, addrlen *_Socklen) (err error)
86 //sysnb getsockname(fd int, rsa *RawSockaddrAny, addrlen *_Socklen) (err error)
87 //sys recvfrom(fd int, p []byte, flags int, from *RawSockaddrAny, fromlen *_Socklen) (n int, err error)
88 //sys sendto(s int, buf []byte, flags int, to unsafe.Pointer, addrlen _Socklen) (err error)
89 //sys recvmsg(s int, msg *Msghdr, flags int) (n int, err error)
90 //sys sendmsg(s int, msg *Msghdr, flags int) (n int, err error)
91 //sys mmap(addr uintptr, length uintptr, prot int, flags int, fd int, offset int64) (xaddr uintptr, err error)
93 //sysnb Gettimeofday(tv *Timeval) (err error)
95 func setTimespec(sec, nsec int64) Timespec {
96 return Timespec{Sec: sec, Nsec: nsec}
99 func setTimeval(sec, usec int64) Timeval {
100 return Timeval{Sec: sec, Usec: usec}
103 func futimesat(dirfd int, path string, tv *[2]Timeval) (err error) {
105 return utimensat(dirfd, path, nil, 0)
109 NsecToTimespec(TimevalToNsec(tv[0])),
110 NsecToTimespec(TimevalToNsec(tv[1])),
112 return utimensat(dirfd, path, (*[2]Timespec)(unsafe.Pointer(&ts[0])), 0)
115 func Time(t *Time_t) (Time_t, error) {
117 err := Gettimeofday(&tv)
124 return Time_t(tv.Sec), nil
127 func Utime(path string, buf *Utimbuf) error {
132 return Utimes(path, tv)
135 func utimes(path string, tv *[2]Timeval) (err error) {
137 return utimensat(AT_FDCWD, path, nil, 0)
141 NsecToTimespec(TimevalToNsec(tv[0])),
142 NsecToTimespec(TimevalToNsec(tv[1])),
144 return utimensat(AT_FDCWD, path, (*[2]Timespec)(unsafe.Pointer(&ts[0])), 0)
147 func Pipe(p []int) (err error) {
158 //sysnb pipe2(p *[2]_C_int, flags int) (err error)
160 func Pipe2(p []int, flags int) (err error) {
165 err = pipe2(&pp, flags)
171 // Getrlimit prefers the prlimit64 system call. See issue 38604.
172 func Getrlimit(resource int, rlim *Rlimit) error {
173 err := prlimit(0, resource, nil, rlim)
177 return getrlimit(resource, rlim)
180 // Setrlimit prefers the prlimit64 system call. See issue 38604.
181 func Setrlimit(resource int, rlim *Rlimit) error {
182 err := prlimit(0, resource, rlim, nil)
186 return setrlimit(resource, rlim)
189 func (r *PtraceRegs) PC() uint64 { return r.Pc }
191 func (r *PtraceRegs) SetPC(pc uint64) { r.Pc = pc }
193 func (iov *Iovec) SetLen(length int) {
194 iov.Len = uint64(length)
197 func (msghdr *Msghdr) SetControllen(length int) {
198 msghdr.Controllen = uint64(length)
201 func (msghdr *Msghdr) SetIovlen(length int) {
202 msghdr.Iovlen = uint64(length)
205 func (cmsg *Cmsghdr) SetLen(length int) {
206 cmsg.Len = uint64(length)
209 func InotifyInit() (fd int, err error) {
210 return InotifyInit1(0)
213 // dup2 exists because func Dup3 in syscall_linux.go references
214 // it in an unreachable path. dup2 isn't available on arm64.
215 func dup2(oldfd int, newfd int) error
218 _, err := ppoll(nil, 0, nil, nil)
222 func Poll(fds []PollFd, timeout int) (n int, err error) {
226 *ts = NsecToTimespec(int64(timeout) * 1e6)
229 return ppoll(nil, 0, ts, nil)
231 return ppoll(&fds[0], len(fds), ts, nil)
234 //sys kexecFileLoad(kernelFd int, initrdFd int, cmdlineLen int, cmdline string, flags int) (err error)
236 func KexecFileLoad(kernelFd int, initrdFd int, cmdline string, flags int) error {
237 cmdlineLen := len(cmdline)
239 // Account for the additional NULL byte added by
240 // BytePtrFromString in kexecFileLoad. The kexec_file_load
241 // syscall expects a NULL-terminated string.
244 return kexecFileLoad(kernelFd, initrdFd, cmdlineLen, cmdline, flags)