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adds experimental sys.Errno to begin decoupling from the syscall package (#1582)

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Signed-off-by: Adrian Cole <adrian@tetrate.io>
This commit is contained in:
Crypt Keeper
2023-07-17 08:13:29 +08:00
committed by GitHub
parent 1dafce0b2a
commit 2f8dd23097
94 changed files with 1591 additions and 1374 deletions
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93
internal/sysfs/readfs.go
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@@ -6,6 +6,7 @@ import (
"syscall"
"time"
experimentalsys "github.com/tetratelabs/wazero/experimental/sys"
"github.com/tetratelabs/wazero/internal/fsapi"
"github.com/tetratelabs/wazero/sys"
)
@@ -28,7 +29,7 @@ type readFS struct {
}
// OpenFile implements the same method as documented on fsapi.FS
func (r *readFS) OpenFile(path string, flag int, perm fs.FileMode) (fsapi.File, syscall.Errno) {
func (r *readFS) OpenFile(path string, flag int, perm fs.FileMode) (fsapi.File, experimentalsys.Errno) {
// TODO: Once the real implementation is complete, move the below to
// /RATIONALE.md. Doing this while the type is unstable creates
// documentation drift as we expect a lot of reshaping meanwhile.
@@ -51,9 +52,9 @@ func (r *readFS) OpenFile(path string, flag int, perm fs.FileMode) (fsapi.File,
switch flag & (os.O_RDONLY | os.O_WRONLY | os.O_RDWR) {
case os.O_WRONLY, os.O_RDWR:
if flag&fsapi.O_DIRECTORY != 0 {
return nil, syscall.EISDIR
return nil, experimentalsys.EISDIR
}
return nil, syscall.ENOSYS
return nil, experimentalsys.ENOSYS
default: // os.O_RDONLY (or no flag) so we are ok!
}
@@ -72,17 +73,17 @@ type readFile struct {
}
// Dev implements the same method as documented on fsapi.File.
func (r *readFile) Dev() (uint64, syscall.Errno) {
func (r *readFile) Dev() (uint64, experimentalsys.Errno) {
return r.f.Dev()
}
// Ino implements the same method as documented on fsapi.File.
func (r *readFile) Ino() (sys.Inode, syscall.Errno) {
func (r *readFile) Ino() (sys.Inode, experimentalsys.Errno) {
return r.f.Ino()
}
// IsDir implements the same method as documented on fsapi.File.
func (r *readFile) IsDir() (bool, syscall.Errno) {
func (r *readFile) IsDir() (bool, experimentalsys.Errno) {
return r.f.IsDir()
}
@@ -92,7 +93,7 @@ func (r *readFile) IsNonblock() bool {
}
// SetNonblock implements the same method as documented on fsapi.File.
func (r *readFile) SetNonblock(enabled bool) syscall.Errno {
func (r *readFile) SetNonblock(enabled bool) experimentalsys.Errno {
return r.f.SetNonblock(enabled)
}
@@ -102,135 +103,135 @@ func (r *readFile) IsAppend() bool {
}
// SetAppend implements the same method as documented on fsapi.File.
func (r *readFile) SetAppend(enabled bool) syscall.Errno {
func (r *readFile) SetAppend(enabled bool) experimentalsys.Errno {
return r.f.SetAppend(enabled)
}
// Stat implements the same method as documented on fsapi.File.
func (r *readFile) Stat() (sys.Stat_t, syscall.Errno) {
func (r *readFile) Stat() (sys.Stat_t, experimentalsys.Errno) {
return r.f.Stat()
}
// Read implements the same method as documented on fsapi.File.
func (r *readFile) Read(buf []byte) (int, syscall.Errno) {
func (r *readFile) Read(buf []byte) (int, experimentalsys.Errno) {
return r.f.Read(buf)
}
// Pread implements the same method as documented on fsapi.File.
func (r *readFile) Pread(buf []byte, offset int64) (int, syscall.Errno) {
func (r *readFile) Pread(buf []byte, offset int64) (int, experimentalsys.Errno) {
return r.f.Pread(buf, offset)
}
// Seek implements the same method as documented on fsapi.File.
func (r *readFile) Seek(offset int64, whence int) (int64, syscall.Errno) {
func (r *readFile) Seek(offset int64, whence int) (int64, experimentalsys.Errno) {
return r.f.Seek(offset, whence)
}
// Readdir implements the same method as documented on fsapi.File.
func (r *readFile) Readdir(n int) (dirents []fsapi.Dirent, errno syscall.Errno) {
func (r *readFile) Readdir(n int) (dirents []fsapi.Dirent, errno experimentalsys.Errno) {
return r.f.Readdir(n)
}
// Write implements the same method as documented on fsapi.File.
func (r *readFile) Write([]byte) (int, syscall.Errno) {
func (r *readFile) Write([]byte) (int, experimentalsys.Errno) {
return 0, r.writeErr()
}
// Pwrite implements the same method as documented on fsapi.File.
func (r *readFile) Pwrite([]byte, int64) (n int, errno syscall.Errno) {
func (r *readFile) Pwrite([]byte, int64) (n int, errno experimentalsys.Errno) {
return 0, r.writeErr()
}
// Truncate implements the same method as documented on fsapi.File.
func (r *readFile) Truncate(int64) syscall.Errno {
func (r *readFile) Truncate(int64) experimentalsys.Errno {
return r.writeErr()
}
// Sync implements the same method as documented on fsapi.File.
func (r *readFile) Sync() syscall.Errno {
return syscall.EBADF
func (r *readFile) Sync() experimentalsys.Errno {
return experimentalsys.EBADF
}
// Datasync implements the same method as documented on fsapi.File.
func (r *readFile) Datasync() syscall.Errno {
return syscall.EBADF
func (r *readFile) Datasync() experimentalsys.Errno {
return experimentalsys.EBADF
}
// Utimens implements the same method as documented on fsapi.File.
func (r *readFile) Utimens(*[2]syscall.Timespec) syscall.Errno {
return syscall.EBADF
func (r *readFile) Utimens(*[2]syscall.Timespec) experimentalsys.Errno {
return experimentalsys.EBADF
}
func (r *readFile) writeErr() syscall.Errno {
func (r *readFile) writeErr() experimentalsys.Errno {
if isDir, errno := r.IsDir(); errno != 0 {
return errno
} else if isDir {
return syscall.EISDIR
return experimentalsys.EISDIR
}
return syscall.EBADF
return experimentalsys.EBADF
}
// Close implements the same method as documented on fsapi.File.
func (r *readFile) Close() syscall.Errno {
func (r *readFile) Close() experimentalsys.Errno {
return r.f.Close()
}
// PollRead implements File.PollRead
func (r *readFile) PollRead(timeout *time.Duration) (ready bool, errno syscall.Errno) {
func (r *readFile) PollRead(timeout *time.Duration) (ready bool, errno experimentalsys.Errno) {
return r.f.PollRead(timeout)
}
// Lstat implements the same method as documented on fsapi.FS
func (r *readFS) Lstat(path string) (sys.Stat_t, syscall.Errno) {
func (r *readFS) Lstat(path string) (sys.Stat_t, experimentalsys.Errno) {
return r.fs.Lstat(path)
}
// Stat implements the same method as documented on fsapi.FS
func (r *readFS) Stat(path string) (sys.Stat_t, syscall.Errno) {
func (r *readFS) Stat(path string) (sys.Stat_t, experimentalsys.Errno) {
return r.fs.Stat(path)
}
// Readlink implements the same method as documented on fsapi.FS
func (r *readFS) Readlink(path string) (dst string, err syscall.Errno) {
func (r *readFS) Readlink(path string) (dst string, err experimentalsys.Errno) {
return r.fs.Readlink(path)
}
// Mkdir implements the same method as documented on fsapi.FS
func (r *readFS) Mkdir(path string, perm fs.FileMode) syscall.Errno {
return syscall.EROFS
func (r *readFS) Mkdir(path string, perm fs.FileMode) experimentalsys.Errno {
return experimentalsys.EROFS
}
// Chmod implements the same method as documented on fsapi.FS
func (r *readFS) Chmod(path string, perm fs.FileMode) syscall.Errno {
return syscall.EROFS
func (r *readFS) Chmod(path string, perm fs.FileMode) experimentalsys.Errno {
return experimentalsys.EROFS
}
// Rename implements the same method as documented on fsapi.FS
func (r *readFS) Rename(from, to string) syscall.Errno {
return syscall.EROFS
func (r *readFS) Rename(from, to string) experimentalsys.Errno {
return experimentalsys.EROFS
}
// Rmdir implements the same method as documented on fsapi.FS
func (r *readFS) Rmdir(path string) syscall.Errno {
return syscall.EROFS
func (r *readFS) Rmdir(path string) experimentalsys.Errno {
return experimentalsys.EROFS
}
// Link implements the same method as documented on fsapi.FS
func (r *readFS) Link(_, _ string) syscall.Errno {
return syscall.EROFS
func (r *readFS) Link(_, _ string) experimentalsys.Errno {
return experimentalsys.EROFS
}
// Symlink implements the same method as documented on fsapi.FS
func (r *readFS) Symlink(_, _ string) syscall.Errno {
return syscall.EROFS
func (r *readFS) Symlink(_, _ string) experimentalsys.Errno {
return experimentalsys.EROFS
}
// Unlink implements the same method as documented on fsapi.FS
func (r *readFS) Unlink(path string) syscall.Errno {
return syscall.EROFS
func (r *readFS) Unlink(path string) experimentalsys.Errno {
return experimentalsys.EROFS
}
// Utimens implements the same method as documented on fsapi.FS
func (r *readFS) Utimens(path string, times *[2]syscall.Timespec, symlinkFollow bool) syscall.Errno {
return syscall.EROFS
func (r *readFS) Utimens(path string, times *[2]syscall.Timespec, symlinkFollow bool) experimentalsys.Errno {
return experimentalsys.EROFS
}