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author | Tianon Gravi <admwiggin@gmail.com> | 2015-01-15 11:54:00 -0700 |
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committer | Tianon Gravi <admwiggin@gmail.com> | 2015-01-15 11:54:00 -0700 |
commit | f154da9e12608589e8d5f0508f908a0c3e88a1bb (patch) | |
tree | f8255d51e10c6f1e0ed69702200b966c9556a431 /src/pkg/syscall/syscall_unix.go | |
parent | 8d8329ed5dfb9622c82a9fbec6fd99a580f9c9f6 (diff) | |
download | golang-f154da9e12608589e8d5f0508f908a0c3e88a1bb.tar.gz |
Imported Upstream version 1.4upstream/1.4
Diffstat (limited to 'src/pkg/syscall/syscall_unix.go')
-rw-r--r-- | src/pkg/syscall/syscall_unix.go | 299 |
1 files changed, 0 insertions, 299 deletions
diff --git a/src/pkg/syscall/syscall_unix.go b/src/pkg/syscall/syscall_unix.go deleted file mode 100644 index b28891568..000000000 --- a/src/pkg/syscall/syscall_unix.go +++ /dev/null @@ -1,299 +0,0 @@ -// 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. - -// +build darwin dragonfly freebsd linux netbsd openbsd solaris - -package syscall - -import ( - "runtime" - "sync" - "unsafe" -) - -var ( - Stdin = 0 - Stdout = 1 - Stderr = 2 -) - -const ( - darwin64Bit = runtime.GOOS == "darwin" && sizeofPtr == 8 - dragonfly64Bit = runtime.GOOS == "dragonfly" && sizeofPtr == 8 - netbsd32Bit = runtime.GOOS == "netbsd" && sizeofPtr == 4 -) - -func Syscall(trap, a1, a2, a3 uintptr) (r1, r2 uintptr, err Errno) -func Syscall6(trap, a1, a2, a3, a4, a5, a6 uintptr) (r1, r2 uintptr, err Errno) -func RawSyscall(trap, a1, a2, a3 uintptr) (r1, r2 uintptr, err Errno) -func RawSyscall6(trap, a1, a2, a3, a4, a5, a6 uintptr) (r1, r2 uintptr, err Errno) - -// Mmap manager, for use by operating system-specific implementations. - -type mmapper struct { - sync.Mutex - active map[*byte][]byte // active mappings; key is last byte in mapping - mmap func(addr, length uintptr, prot, flags, fd int, offset int64) (uintptr, error) - munmap func(addr uintptr, length uintptr) error -} - -func (m *mmapper) Mmap(fd int, offset int64, length int, prot int, flags int) (data []byte, err error) { - if length <= 0 { - return nil, EINVAL - } - - // Map the requested memory. - addr, errno := m.mmap(0, uintptr(length), prot, flags, fd, offset) - if errno != nil { - return nil, errno - } - - // Slice memory layout - var sl = struct { - addr uintptr - len int - cap int - }{addr, length, length} - - // Use unsafeto turn sl into a []byte. - b := *(*[]byte)(unsafe.Pointer(&sl)) - - // Register mapping in m and return it. - p := &b[cap(b)-1] - m.Lock() - defer m.Unlock() - m.active[p] = b - return b, nil -} - -func (m *mmapper) Munmap(data []byte) (err error) { - if len(data) == 0 || len(data) != cap(data) { - return EINVAL - } - - // Find the base of the mapping. - p := &data[cap(data)-1] - m.Lock() - defer m.Unlock() - b := m.active[p] - if b == nil || &b[0] != &data[0] { - return EINVAL - } - - // Unmap the memory and update m. - if errno := m.munmap(uintptr(unsafe.Pointer(&b[0])), uintptr(len(b))); errno != nil { - return errno - } - delete(m.active, p) - return nil -} - -// An Errno is an unsigned number describing an error condition. -// It implements the error interface. The zero Errno is by convention -// a non-error, so code to convert from Errno to error should use: -// err = nil -// if errno != 0 { -// err = errno -// } -type Errno uintptr - -func (e Errno) Error() string { - if 0 <= int(e) && int(e) < len(errors) { - s := errors[e] - if s != "" { - return s - } - } - return "errno " + itoa(int(e)) -} - -func (e Errno) Temporary() bool { - return e == EINTR || e == EMFILE || e.Timeout() -} - -func (e Errno) Timeout() bool { - return e == EAGAIN || e == EWOULDBLOCK || e == ETIMEDOUT -} - -// A Signal is a number describing a process signal. -// It implements the os.Signal interface. -type Signal int - -func (s Signal) Signal() {} - -func (s Signal) String() string { - if 0 <= s && int(s) < len(signals) { - str := signals[s] - if str != "" { - return str - } - } - return "signal " + itoa(int(s)) -} - -func Read(fd int, p []byte) (n int, err error) { - n, err = read(fd, p) - if raceenabled { - if n > 0 { - raceWriteRange(unsafe.Pointer(&p[0]), n) - } - if err == nil { - raceAcquire(unsafe.Pointer(&ioSync)) - } - } - return -} - -func Write(fd int, p []byte) (n int, err error) { - if raceenabled { - raceReleaseMerge(unsafe.Pointer(&ioSync)) - } - n, err = write(fd, p) - if raceenabled && n > 0 { - raceReadRange(unsafe.Pointer(&p[0]), n) - } - return -} - -// For testing: clients can set this flag to force -// creation of IPv6 sockets to return EAFNOSUPPORT. -var SocketDisableIPv6 bool - -type Sockaddr interface { - sockaddr() (ptr unsafe.Pointer, len _Socklen, err error) // lowercase; only we can define Sockaddrs -} - -type SockaddrInet4 struct { - Port int - Addr [4]byte - raw RawSockaddrInet4 -} - -type SockaddrInet6 struct { - Port int - ZoneId uint32 - Addr [16]byte - raw RawSockaddrInet6 -} - -type SockaddrUnix struct { - Name string - raw RawSockaddrUnix -} - -func Bind(fd int, sa Sockaddr) (err error) { - ptr, n, err := sa.sockaddr() - if err != nil { - return err - } - return bind(fd, ptr, n) -} - -func Connect(fd int, sa Sockaddr) (err error) { - ptr, n, err := sa.sockaddr() - if err != nil { - return err - } - return connect(fd, ptr, n) -} - -func Getpeername(fd int) (sa Sockaddr, err error) { - var rsa RawSockaddrAny - var len _Socklen = SizeofSockaddrAny - if err = getpeername(fd, &rsa, &len); err != nil { - return - } - return anyToSockaddr(&rsa) -} - -func GetsockoptInt(fd, level, opt int) (value int, err error) { - var n int32 - vallen := _Socklen(4) - err = getsockopt(fd, level, opt, unsafe.Pointer(&n), &vallen) - return int(n), err -} - -func Recvfrom(fd int, p []byte, flags int) (n int, from Sockaddr, err error) { - var rsa RawSockaddrAny - var len _Socklen = SizeofSockaddrAny - if n, err = recvfrom(fd, p, flags, &rsa, &len); err != nil { - return - } - if rsa.Addr.Family != AF_UNSPEC { - from, err = anyToSockaddr(&rsa) - } - return -} - -func Sendto(fd int, p []byte, flags int, to Sockaddr) (err error) { - ptr, n, err := to.sockaddr() - if err != nil { - return err - } - return sendto(fd, p, flags, ptr, n) -} - -func SetsockoptByte(fd, level, opt int, value byte) (err error) { - return setsockopt(fd, level, opt, unsafe.Pointer(&value), 1) -} - -func SetsockoptInt(fd, level, opt int, value int) (err error) { - var n = int32(value) - return setsockopt(fd, level, opt, unsafe.Pointer(&n), 4) -} - -func SetsockoptInet4Addr(fd, level, opt int, value [4]byte) (err error) { - return setsockopt(fd, level, opt, unsafe.Pointer(&value[0]), 4) -} - -func SetsockoptIPMreq(fd, level, opt int, mreq *IPMreq) (err error) { - return setsockopt(fd, level, opt, unsafe.Pointer(mreq), SizeofIPMreq) -} - -func SetsockoptIPv6Mreq(fd, level, opt int, mreq *IPv6Mreq) (err error) { - return setsockopt(fd, level, opt, unsafe.Pointer(mreq), SizeofIPv6Mreq) -} - -func SetsockoptICMPv6Filter(fd, level, opt int, filter *ICMPv6Filter) error { - return setsockopt(fd, level, opt, unsafe.Pointer(filter), SizeofICMPv6Filter) -} - -func SetsockoptLinger(fd, level, opt int, l *Linger) (err error) { - return setsockopt(fd, level, opt, unsafe.Pointer(l), SizeofLinger) -} - -func SetsockoptString(fd, level, opt int, s string) (err error) { - return setsockopt(fd, level, opt, unsafe.Pointer(&[]byte(s)[0]), uintptr(len(s))) -} - -func SetsockoptTimeval(fd, level, opt int, tv *Timeval) (err error) { - return setsockopt(fd, level, opt, unsafe.Pointer(tv), unsafe.Sizeof(*tv)) -} - -func Socket(domain, typ, proto int) (fd int, err error) { - if domain == AF_INET6 && SocketDisableIPv6 { - return -1, EAFNOSUPPORT - } - fd, err = socket(domain, typ, proto) - return -} - -func Socketpair(domain, typ, proto int) (fd [2]int, err error) { - var fdx [2]int32 - err = socketpair(domain, typ, proto, &fdx) - if err == nil { - fd[0] = int(fdx[0]) - fd[1] = int(fdx[1]) - } - return -} - -func Sendfile(outfd int, infd int, offset *int64, count int) (written int, err error) { - if raceenabled { - raceReleaseMerge(unsafe.Pointer(&ioSync)) - } - return sendfile(outfd, infd, offset, count) -} - -var ioSync int64 |