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author | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-28 12:36:04 +0000 |
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committer | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-28 12:36:04 +0000 |
commit | b09c6d56832eb1718c07d74abf3bc6ae3fe4e030 (patch) | |
tree | d2caec2610d4ea887803ec9e9c3cd77136c448ba /dependencies/pkg/mod/golang.org/x/sys@v0.1.0/unix/fstatfs_zos.go | |
parent | Initial commit. (diff) | |
download | icingadb-b09c6d56832eb1718c07d74abf3bc6ae3fe4e030.tar.xz icingadb-b09c6d56832eb1718c07d74abf3bc6ae3fe4e030.zip |
Adding upstream version 1.1.0.upstream/1.1.0upstream
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'dependencies/pkg/mod/golang.org/x/sys@v0.1.0/unix/fstatfs_zos.go')
-rw-r--r-- | dependencies/pkg/mod/golang.org/x/sys@v0.1.0/unix/fstatfs_zos.go | 164 |
1 files changed, 164 insertions, 0 deletions
diff --git a/dependencies/pkg/mod/golang.org/x/sys@v0.1.0/unix/fstatfs_zos.go b/dependencies/pkg/mod/golang.org/x/sys@v0.1.0/unix/fstatfs_zos.go new file mode 100644 index 0000000..e377cc9 --- /dev/null +++ b/dependencies/pkg/mod/golang.org/x/sys@v0.1.0/unix/fstatfs_zos.go @@ -0,0 +1,164 @@ +// Copyright 2020 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. + +//go:build zos && s390x +// +build zos,s390x + +package unix + +import ( + "unsafe" +) + +// This file simulates fstatfs on z/OS using fstatvfs and w_getmntent. + +func Fstatfs(fd int, stat *Statfs_t) (err error) { + var stat_v Statvfs_t + err = Fstatvfs(fd, &stat_v) + if err == nil { + // populate stat + stat.Type = 0 + stat.Bsize = stat_v.Bsize + stat.Blocks = stat_v.Blocks + stat.Bfree = stat_v.Bfree + stat.Bavail = stat_v.Bavail + stat.Files = stat_v.Files + stat.Ffree = stat_v.Ffree + stat.Fsid = stat_v.Fsid + stat.Namelen = stat_v.Namemax + stat.Frsize = stat_v.Frsize + stat.Flags = stat_v.Flag + for passn := 0; passn < 5; passn++ { + switch passn { + case 0: + err = tryGetmntent64(stat) + break + case 1: + err = tryGetmntent128(stat) + break + case 2: + err = tryGetmntent256(stat) + break + case 3: + err = tryGetmntent512(stat) + break + case 4: + err = tryGetmntent1024(stat) + break + default: + break + } + //proceed to return if: err is nil (found), err is nonnil but not ERANGE (another error occurred) + if err == nil || err != nil && err != ERANGE { + break + } + } + } + return err +} + +func tryGetmntent64(stat *Statfs_t) (err error) { + var mnt_ent_buffer struct { + header W_Mnth + filesys_info [64]W_Mntent + } + var buffer_size int = int(unsafe.Sizeof(mnt_ent_buffer)) + fs_count, err := W_Getmntent((*byte)(unsafe.Pointer(&mnt_ent_buffer)), buffer_size) + if err != nil { + return err + } + err = ERANGE //return ERANGE if no match is found in this batch + for i := 0; i < fs_count; i++ { + if stat.Fsid == uint64(mnt_ent_buffer.filesys_info[i].Dev) { + stat.Type = uint32(mnt_ent_buffer.filesys_info[i].Fstname[0]) + err = nil + break + } + } + return err +} + +func tryGetmntent128(stat *Statfs_t) (err error) { + var mnt_ent_buffer struct { + header W_Mnth + filesys_info [128]W_Mntent + } + var buffer_size int = int(unsafe.Sizeof(mnt_ent_buffer)) + fs_count, err := W_Getmntent((*byte)(unsafe.Pointer(&mnt_ent_buffer)), buffer_size) + if err != nil { + return err + } + err = ERANGE //return ERANGE if no match is found in this batch + for i := 0; i < fs_count; i++ { + if stat.Fsid == uint64(mnt_ent_buffer.filesys_info[i].Dev) { + stat.Type = uint32(mnt_ent_buffer.filesys_info[i].Fstname[0]) + err = nil + break + } + } + return err +} + +func tryGetmntent256(stat *Statfs_t) (err error) { + var mnt_ent_buffer struct { + header W_Mnth + filesys_info [256]W_Mntent + } + var buffer_size int = int(unsafe.Sizeof(mnt_ent_buffer)) + fs_count, err := W_Getmntent((*byte)(unsafe.Pointer(&mnt_ent_buffer)), buffer_size) + if err != nil { + return err + } + err = ERANGE //return ERANGE if no match is found in this batch + for i := 0; i < fs_count; i++ { + if stat.Fsid == uint64(mnt_ent_buffer.filesys_info[i].Dev) { + stat.Type = uint32(mnt_ent_buffer.filesys_info[i].Fstname[0]) + err = nil + break + } + } + return err +} + +func tryGetmntent512(stat *Statfs_t) (err error) { + var mnt_ent_buffer struct { + header W_Mnth + filesys_info [512]W_Mntent + } + var buffer_size int = int(unsafe.Sizeof(mnt_ent_buffer)) + fs_count, err := W_Getmntent((*byte)(unsafe.Pointer(&mnt_ent_buffer)), buffer_size) + if err != nil { + return err + } + err = ERANGE //return ERANGE if no match is found in this batch + for i := 0; i < fs_count; i++ { + if stat.Fsid == uint64(mnt_ent_buffer.filesys_info[i].Dev) { + stat.Type = uint32(mnt_ent_buffer.filesys_info[i].Fstname[0]) + err = nil + break + } + } + return err +} + +func tryGetmntent1024(stat *Statfs_t) (err error) { + var mnt_ent_buffer struct { + header W_Mnth + filesys_info [1024]W_Mntent + } + var buffer_size int = int(unsafe.Sizeof(mnt_ent_buffer)) + fs_count, err := W_Getmntent((*byte)(unsafe.Pointer(&mnt_ent_buffer)), buffer_size) + if err != nil { + return err + } + err = ERANGE //return ERANGE if no match is found in this batch + for i := 0; i < fs_count; i++ { + if stat.Fsid == uint64(mnt_ent_buffer.filesys_info[i].Dev) { + stat.Type = uint32(mnt_ent_buffer.filesys_info[i].Fstname[0]) + err = nil + break + } + } + return err +} |