syscall_aix_ppc64.go

Documentation: cmd/vendor/golang.org/x/sys/unix

     1  // Copyright 2018 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.
     4  
     5  //go:build aix && ppc64
     6  
     7  package unix
     8  
     9  //sysnb	Getrlimit(resource int, rlim *Rlimit) (err error)
    10  //sys	Seek(fd int, offset int64, whence int) (off int64, err error) = lseek
    11  
    12  //sys	mmap(addr uintptr, length uintptr, prot int, flags int, fd int, offset int64) (xaddr uintptr, err error) = mmap64
    13  
    14  func setTimespec(sec, nsec int64) Timespec {
    15  	return Timespec{Sec: sec, Nsec: nsec}
    16  }
    17  
    18  func setTimeval(sec, usec int64) Timeval {
    19  	return Timeval{Sec: int64(sec), Usec: int32(usec)}
    20  }
    21  
    22  func (iov *Iovec) SetLen(length int) {
    23  	iov.Len = uint64(length)
    24  }
    25  
    26  func (msghdr *Msghdr) SetControllen(length int) {
    27  	msghdr.Controllen = uint32(length)
    28  }
    29  
    30  func (msghdr *Msghdr) SetIovlen(length int) {
    31  	msghdr.Iovlen = int32(length)
    32  }
    33  
    34  func (cmsg *Cmsghdr) SetLen(length int) {
    35  	cmsg.Len = uint32(length)
    36  }
    37  
    38  // In order to only have Timespec structure, type of Stat_t's fields
    39  // Atim, Mtim and Ctim is changed from StTimespec to Timespec during
    40  // ztypes generation.
    41  // On ppc64, Timespec.Nsec is an int64 while StTimespec.Nsec is an
    42  // int32, so the fields' value must be modified.
    43  func fixStatTimFields(stat *Stat_t) {
    44  	stat.Atim.Nsec >>= 32
    45  	stat.Mtim.Nsec >>= 32
    46  	stat.Ctim.Nsec >>= 32
    47  }
    48  
    49  func Fstat(fd int, stat *Stat_t) error {
    50  	err := fstat(fd, stat)
    51  	if err != nil {
    52  		return err
    53  	}
    54  	fixStatTimFields(stat)
    55  	return nil
    56  }
    57  
    58  func Fstatat(dirfd int, path string, stat *Stat_t, flags int) error {
    59  	err := fstatat(dirfd, path, stat, flags)
    60  	if err != nil {
    61  		return err
    62  	}
    63  	fixStatTimFields(stat)
    64  	return nil
    65  }
    66  
    67  func Lstat(path string, stat *Stat_t) error {
    68  	err := lstat(path, stat)
    69  	if err != nil {
    70  		return err
    71  	}
    72  	fixStatTimFields(stat)
    73  	return nil
    74  }
    75  
    76  func Stat(path string, statptr *Stat_t) error {
    77  	err := stat(path, statptr)
    78  	if err != nil {
    79  		return err
    80  	}
    81  	fixStatTimFields(statptr)
    82  	return nil
    83  }
    84
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