Fix "PR c++/92804 ICE trying to use concept as a nested-name-specifier"
[official-gcc.git] / libgo / go / syscall / libcall_glibc.go
bloba90fc9b3f8bdd5278ee8248d585cdb865e642fa2
1 // Copyright 2009 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.
5 // +build hurd linux
7 // glibc library calls.
9 package syscall
11 import (
12 "internal/race"
13 "unsafe"
16 //sys Openat(dirfd int, path string, flags int, mode uint32) (fd int, err error)
17 //__go_openat(dirfd _C_int, path *byte, flags _C_int, mode Mode_t) _C_int
19 //sys futimesat(dirfd int, path *byte, times *[2]Timeval) (err error)
20 //futimesat(dirfd _C_int, path *byte, times *[2]Timeval) _C_int
21 func Futimesat(dirfd int, path string, tv []Timeval) (err error) {
22 if len(tv) != 2 {
23 return EINVAL
25 return futimesat(dirfd, StringBytePtr(path), (*[2]Timeval)(unsafe.Pointer(&tv[0])))
28 func Futimes(fd int, tv []Timeval) (err error) {
29 // Believe it or not, this is the best we can do on GNU/Linux
30 // (and is what glibc does).
31 return Utimes("/proc/self/fd/"+itoa(fd), tv)
34 //sys ptrace(request int, pid int, addr uintptr, data uintptr) (err error)
35 //ptrace(request _C_int, pid Pid_t, addr *byte, data *byte) _C_long
37 //sys accept4(fd int, sa *RawSockaddrAny, len *Socklen_t, flags int) (nfd int, err error)
38 //accept4(fd _C_int, sa *RawSockaddrAny, len *Socklen_t, flags _C_int) _C_int
40 func Accept4(fd int, flags int) (nfd int, sa Sockaddr, err error) {
41 var rsa RawSockaddrAny
42 var len Socklen_t = SizeofSockaddrAny
43 nfd, err = accept4(fd, &rsa, &len, flags)
44 if err != nil {
45 return -1, nil, err
47 sa, err = anyToSockaddr(&rsa)
48 if err != nil {
49 Close(nfd)
50 return -1, nil, err
52 return nfd, sa, nil
55 //sysnb Dup3(oldfd int, newfd int, flags int) (err error)
56 //dup3(oldfd _C_int, newfd _C_int, flags _C_int) _C_int
58 //sys Faccessat(dirfd int, path string, mode uint32, flags int) (err error)
59 //faccessat(dirfd _C_int, pathname *byte, mode _C_int, flags _C_int) _C_int
61 //sys Fallocate(fd int, mode uint32, off int64, len int64) (err error)
62 //fallocate(fd _C_int, mode _C_int, offset Offset_t, len Offset_t) _C_int
64 //sys Fchmodat(dirfd int, path string, mode uint32, flags int) (err error)
65 //fchmodat(dirfd _C_int, pathname *byte, mode Mode_t, flags _C_int) _C_int
67 //sys Fchownat(dirfd int, path string, uid int, gid int, flags int) (err error)
68 //fchownat(dirfd _C_int, path *byte, owner Uid_t, group Gid_t, flags _C_int) _C_int
70 //sys Flock(fd int, how int) (err error)
71 //flock(fd _C_int, how _C_int) _C_int
73 func Getdents(fd int, buf []byte) (n int, err error) {
74 var p *byte
75 if len(buf) > 0 {
76 p = &buf[0]
77 } else {
78 p = (*byte)(unsafe.Pointer(&_zero))
80 s := SYS_GETDENTS64
81 if s == 0 {
82 s = SYS_GETDENTS
84 r1, _, errno := Syscall(uintptr(s), uintptr(fd), uintptr(unsafe.Pointer(p)), uintptr(len(buf)))
85 n = int(r1)
86 if n < 0 {
87 err = errno
89 return
92 func ReadDirent(fd int, buf []byte) (n int, err error) {
93 return Getdents(fd, buf)
96 //sys Mkdirat(dirfd int, path string, mode uint32) (err error)
97 //mkdirat(dirfd _C_int, path *byte, mode Mode_t) _C_int
99 //sys Mknodat(dirfd int, path string, mode uint32, dev int) (err error)
100 //mknodat(dirfd _C_int, path *byte, mode Mode_t, dev _dev_t) _C_int
102 //sysnb pipe2(p *[2]_C_int, flags int) (err error)
103 //pipe2(p *[2]_C_int, flags _C_int) _C_int
104 func Pipe2(p []int, flags int) (err error) {
105 if len(p) != 2 {
106 return EINVAL
108 var pp [2]_C_int
109 err = pipe2(&pp, flags)
110 p[0] = int(pp[0])
111 p[1] = int(pp[1])
112 return
115 //sys sendfile(outfd int, infd int, offset *Offset_t, count int) (written int, err error)
116 //sendfile64(outfd _C_int, infd _C_int, offset *Offset_t, count Size_t) Ssize_t
117 func Sendfile(outfd int, infd int, offset *int64, count int) (written int, err error) {
118 if race.Enabled {
119 race.ReleaseMerge(unsafe.Pointer(&ioSync))
121 var soff Offset_t
122 var psoff *Offset_t
123 if offset != nil {
124 soff = Offset_t(*offset)
125 psoff = &soff
127 written, err = sendfile(outfd, infd, psoff, count)
128 if offset != nil {
129 *offset = int64(soff)
131 return
134 //sys SyncFileRange(fd int, off int64, n int64, flags int) (err error)
135 //sync_file_range(fd _C_int, off Offset_t, n Offset_t, flags _C_uint) _C_int