tinygo-org/tinygo
1
0
Fork 0
mirror of https://github.com/tinygo-org/tinygo.git synced 2026-08-12 23:13:40 +00:00
Code Issues Packages Projects Releases 6 Wiki Activity

WASI & darwin: support basic file io based on libc

Browse Source 
Signed-off-by: Takeshi Yoneda <takeshi@tetrate.io>
This commit is contained in:
Takeshi Yoneda
2021-03-18 12:53:32 +09:00
committed by Ron Evans
parent 6d3c11627c
commit 1406453350
16 changed files with 390 additions and 84 deletions
Download Patch File Download Diff File Expand all files Collapse all files
src/os/file.go
+10 -61
View File
@@ -6,6 +6,7 @@
package os
import (
"io"
"syscall"
)
@@ -76,7 +77,7 @@ func Create(name string) (*File, error) {
// read and any error encountered. At end of file, Read returns 0, io.EOF.
func (f *File) Read(b []byte) (n int, err error) {
n, err = f.handle.Read(b)
if err != nil {
if err != nil && err != io.EOF {
err = &PathError{"read", f.name, err}
}
return
@@ -155,59 +156,17 @@ func (e *PathError) Error() string {
return e.Op + " " + e.Path + ": " + e.Err.Error()
}
type FileMode uint32
// Mode constants, copied from the mainline Go source
// https://github.com/golang/go/blob/4ce6a8e89668b87dce67e2f55802903d6eb9110a/src/os/types.go#L35-L63
const (
// The single letters are the abbreviations used by the String method's formatting.
ModeDir FileMode = 1 << (32 - 1 - iota) // d: is a directory
ModeAppend // a: append-only
ModeExclusive // l: exclusive use
ModeTemporary // T: temporary file; Plan 9 only
ModeSymlink // L: symbolic link
ModeDevice // D: device file
ModeNamedPipe // p: named pipe (FIFO)
ModeSocket // S: Unix domain socket
ModeSetuid // u: setuid
ModeSetgid // g: setgid
ModeCharDevice // c: Unix character device, when ModeDevice is set
ModeSticky // t: sticky
ModeIrregular // ?: non-regular file; nothing else is known about this file
// Mask for the type bits. For regular files, none will be set.
ModeType = ModeDir | ModeSymlink | ModeNamedPipe | ModeSocket | ModeDevice | ModeCharDevice | ModeIrregular
ModePerm FileMode = 0777 // Unix permission bits
O_RDONLY int = syscall.O_RDONLY
O_WRONLY int = syscall.O_WRONLY
O_RDWR int = syscall.O_RDWR
O_APPEND int = syscall.O_APPEND
O_CREATE int = syscall.O_CREAT
O_EXCL int = syscall.O_EXCL
O_SYNC int = syscall.O_SYNC
O_TRUNC int = syscall.O_TRUNC
)
// IsDir is a stub, always returning false
func (m FileMode) IsDir() bool {
return false
}
// Stub constants
const (
O_RDONLY int = 1
O_WRONLY int = 2
O_RDWR int = 4
O_APPEND int = 8
O_CREATE int = 16
O_EXCL int = 32
O_SYNC int = 64
O_TRUNC int = 128
)
// A FileInfo describes a file and is returned by Stat and Lstat.
type FileInfo interface {
Name() string // base name of the file
Size() int64 // length in bytes for regular files; system-dependent for others
Mode() FileMode // file mode bits
// TODO ModTime() time.Time // modification time
IsDir() bool // abbreviation for Mode().IsDir()
Sys() interface{} // underlying data source (can return nil)
}
// Stat is a stub, not yet implemented
func Stat(name string) (FileInfo, error) {
return nil, &PathError{"stat", name, ErrNotImplemented}
@@ -233,16 +192,6 @@ func TempDir() string {
return "/tmp"
}
// IsExist is a stub (for now), always returning false
func IsExist(err error) bool {
return false
}
// IsNotExist is a stub (for now), always returning false
func IsNotExist(err error) bool {
return false
}
// Getpid is a stub (for now), always returning 1
func Getpid() int {
return 1