ODPM 266: Go-libmemif + 2 examples.

[govpp.git] / vendor / golang.org / x / sys / unix / syscall_dragonfly.go

diff --git a/vendor/golang.org/x/sys/unix/syscall_dragonfly.go b/vendor/golang.org/x/sys/unix/syscall_dragonfly.go
index fbbe0dc..7e0210f 100644 (file)
--- a/vendor/golang.org/x/sys/unix/syscall_dragonfly.go
+++ b/vendor/golang.org/x/sys/unix/syscall_dragonfly.go
@@ -1,8 +1,8 @@
-// Copyright 2009,2010 The Go Authors. All rights reserved.
+// 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.
 
-// FreeBSD system calls.
+// DragonFly BSD system calls.
 // This file is compiled as ordinary Go code,
 // but it is also input to mksyscall,
 // which parses the //sys lines and generates system call stubs.
@@ -34,7 +34,7 @@ func nametomib(name string) (mib []_C_int, err error) {
 
        // NOTE(rsc): It seems strange to set the buffer to have
        // size CTL_MAXNAME+2 but use only CTL_MAXNAME
-       // as the size.  I don't know why the +2 is here, but the
+       // as the size. I don't know why the +2 is here, but the
        // kernel uses +2 for its own implementation of this function.
        // I am scared that if we don't include the +2 here, the kernel
        // will silently write 2 words farther than we specify
@@ -56,29 +56,20 @@ func nametomib(name string) (mib []_C_int, err error) {
        return buf[0 : n/siz], nil
 }
 
-// ParseDirent parses up to max directory entries in buf,
-// appending the names to names.  It returns the number
-// bytes consumed from buf, the number of entries added
-// to names, and the new names slice.
-func ParseDirent(buf []byte, max int, names []string) (consumed int, count int, newnames []string) {
-       origlen := len(buf)
-       for max != 0 && len(buf) > 0 {
-               dirent := (*Dirent)(unsafe.Pointer(&buf[0]))
-               reclen := int(16+dirent.Namlen+1+7) & ^7
-               buf = buf[reclen:]
-               if dirent.Fileno == 0 { // File absent in directory.
-                       continue
-               }
-               bytes := (*[10000]byte)(unsafe.Pointer(&dirent.Name[0]))
-               var name = string(bytes[0:dirent.Namlen])
-               if name == "." || name == ".." { // Useless names
-                       continue
-               }
-               max--
-               count++
-               names = append(names, name)
+func direntIno(buf []byte) (uint64, bool) {
+       return readInt(buf, unsafe.Offsetof(Dirent{}.Fileno), unsafe.Sizeof(Dirent{}.Fileno))
+}
+
+func direntReclen(buf []byte) (uint64, bool) {
+       namlen, ok := direntNamlen(buf)
+       if !ok {
+               return 0, false
        }
-       return origlen - len(buf), count, names
+       return (16 + namlen + 1 + 7) &^ 7, true
+}
+
+func direntNamlen(buf []byte) (uint64, bool) {
+       return readInt(buf, unsafe.Offsetof(Dirent{}.Namlen), unsafe.Sizeof(Dirent{}.Namlen))
 }
 
 //sysnb pipe() (r int, w int, err error)
@@ -101,6 +92,24 @@ func Pwrite(fd int, p []byte, offset int64) (n int, err error) {
        return extpwrite(fd, p, 0, offset)
 }
 
+func Accept4(fd, flags int) (nfd int, sa Sockaddr, err error) {
+       var rsa RawSockaddrAny
+       var len _Socklen = SizeofSockaddrAny
+       nfd, err = accept4(fd, &rsa, &len, flags)
+       if err != nil {
+               return
+       }
+       if len > SizeofSockaddrAny {
+               panic("RawSockaddrAny too small")
+       }
+       sa, err = anyToSockaddr(&rsa)
+       if err != nil {
+               Close(nfd)
+               nfd = 0
+       }
+       return
+}
+
 func Getfsstat(buf []Statfs_t, flags int) (n int, err error) {
        var _p0 unsafe.Pointer
        var bufsize uintptr
@@ -208,6 +217,7 @@ func Getfsstat(buf []Statfs_t, flags int) (n int, err error) {
 //sys   munmap(addr uintptr, length uintptr) (err error)
 //sys  readlen(fd int, buf *byte, nbuf int) (n int, err error) = SYS_READ
 //sys  writelen(fd int, buf *byte, nbuf int) (n int, err error) = SYS_WRITE
+//sys  accept4(fd int, rsa *RawSockaddrAny, addrlen *_Socklen, flags int) (nfd int, err error)
 
 /*
  * Unimplemented
@@ -243,6 +253,8 @@ func Getfsstat(buf []Statfs_t, flags int) (n int, err error) {
 // Kdebug_trace
 // Sigreturn
 // Mmap
+// Mlock
+// Munlock
 // Atsocket
 // Kqueue_from_portset_np
 // Kqueue_portset
@@ -335,6 +347,8 @@ func Getfsstat(buf []Statfs_t, flags int) (n int, err error) {
 // Lio_listio
 // __pthread_cond_wait
 // Iopolicysys
+// Mlockall
+// Munlockall
 // __pthread_kill
 // __pthread_sigmask
 // __sigwait