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// Copyright 2009 The Go Authors. All rights reserved.
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.
package syscall
// File operations for Linux
import syscall "syscall"
const NameBufsize = 512
export func open(name string, mode int64, perm int64) (ret int64, errno int64) {
var namebuf [NameBufsize]byte;
if !StringToBytes(&namebuf, name) {
return -1, ENAMETOOLONG
}
r1, r2, err := Syscall(SYS_OPEN, BytePtr(&namebuf[0]), mode, perm);
return r1, err;
}
export func creat(name string, perm int64) (ret int64, errno int64) {
var namebuf [NameBufsize]byte;
if !StringToBytes(&namebuf, name) {
return -1, ENAMETOOLONG
}
r1, r2, err := Syscall(SYS_OPEN, BytePtr(&namebuf[0]), O_CREAT|O_WRONLY|O_TRUNC, perm);
return r1, err;
}
export func close(fd int64) (ret int64, errno int64) {
r1, r2, err := Syscall(SYS_CLOSE, fd, 0, 0);
return r1, err;
}
export func read(fd int64, buf *byte, nbytes int64) (ret int64, errno int64) {
r1, r2, err := Syscall(SYS_READ, fd, BytePtr(buf), nbytes);
return r1, err;
}
export func write(fd int64, buf *byte, nbytes int64) (ret int64, errno int64) {
r1, r2, err := Syscall(SYS_WRITE, fd, BytePtr(buf), nbytes);
return r1, err;
}
export func pipe(fds *[2]int64) (ret int64, errno int64) {
var t [2] int32;
r1, r2, err := Syscall(SYS_PIPE, Int32Ptr(&t[0]), 0, 0);
if r1 < 0 {
return r1, err;
}
fds[0] = int64(t[0]);
fds[1] = int64(t[1]);
return 0, 0;
}
export func stat(name string, buf *Stat) (ret int64, errno int64) {
var namebuf [NameBufsize]byte;
if !StringToBytes(&namebuf, name) {
return -1, ENAMETOOLONG
}
r1, r2, err := Syscall(SYS_STAT, BytePtr(&namebuf[0]), StatPtr(buf), 0);
return r1, err;
}
export func lstat(name *byte, buf *Stat) (ret int64, errno int64) {
r1, r2, err := Syscall(SYS_LSTAT, BytePtr(name), StatPtr(buf), 0);
return r1, err;
}
export func fstat(fd int64, buf *Stat) (ret int64, errno int64) {
r1, r2, err := Syscall(SYS_FSTAT, fd, StatPtr(buf), 0);
return r1, err;
}
export func unlink(name string) (ret int64, errno int64) {
var namebuf [NameBufsize]byte;
if !StringToBytes(&namebuf, name) {
return -1, ENAMETOOLONG
}
r1, r2, err := Syscall(SYS_UNLINK, BytePtr(&namebuf[0]), 0, 0);
return r1, err;
}
export func fcntl(fd, cmd, arg int64) (ret int64, errno int64) {
r1, r2, err := Syscall(SYS_FCNTL, fd, cmd, arg);
return r1, err
}
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