mirror of
https://github.com/superseriousbusiness/gotosocial.git
synced 2024-12-15 11:46:45 +00:00
1e7b32490d
This allows for building GoToSocial with [SQLite transpiled to WASM](https://github.com/ncruces/go-sqlite3) and accessed through [Wazero](https://wazero.io/).
98 lines
2.5 KiB
Go
98 lines
2.5 KiB
Go
package sys
|
|
|
|
import "strconv"
|
|
|
|
// Errno is a subset of POSIX errno used by wazero interfaces. Zero is not an
|
|
// error. Other values should not be interpreted numerically, rather by constants
|
|
// prefixed with 'E'.
|
|
//
|
|
// See https://pubs.opengroup.org/onlinepubs/9699919799/basedefs/errno.h.html
|
|
type Errno uint16
|
|
|
|
// ^-- Note: This will eventually move to the public /sys package. It is
|
|
// experimental until we audit the socket related APIs to ensure we have all
|
|
// the Errno it returns, and we export fs.FS. This is not in /internal/sys as
|
|
// that would introduce a package cycle.
|
|
|
|
// This is a subset of errors to reduce implementation burden. `wasip1` defines
|
|
// almost all POSIX error numbers, but not all are used in practice. wazero
|
|
// will add ones needed in POSIX order, as needed by functions that explicitly
|
|
// document returning them.
|
|
//
|
|
// https://github.com/WebAssembly/WASI/blob/snapshot-01/phases/snapshot/docs.md#-errno-enumu16
|
|
const (
|
|
EACCES Errno = iota + 1
|
|
EAGAIN
|
|
EBADF
|
|
EEXIST
|
|
EFAULT
|
|
EINTR
|
|
EINVAL
|
|
EIO
|
|
EISDIR
|
|
ELOOP
|
|
ENAMETOOLONG
|
|
ENOENT
|
|
ENOSYS
|
|
ENOTDIR
|
|
ERANGE
|
|
ENOTEMPTY
|
|
ENOTSOCK
|
|
ENOTSUP
|
|
EPERM
|
|
EROFS
|
|
|
|
// NOTE ENOTCAPABLE is defined in wasip1, but not in POSIX. wasi-libc
|
|
// converts it to EBADF, ESPIPE or EINVAL depending on the call site.
|
|
// It isn't known if compilers who don't use ENOTCAPABLE would crash on it.
|
|
)
|
|
|
|
// Error implements error
|
|
func (e Errno) Error() string {
|
|
switch e {
|
|
case 0: // not an error
|
|
return "success"
|
|
case EACCES:
|
|
return "permission denied"
|
|
case EAGAIN:
|
|
return "resource unavailable, try again"
|
|
case EBADF:
|
|
return "bad file descriptor"
|
|
case EEXIST:
|
|
return "file exists"
|
|
case EFAULT:
|
|
return "bad address"
|
|
case EINTR:
|
|
return "interrupted function"
|
|
case EINVAL:
|
|
return "invalid argument"
|
|
case EIO:
|
|
return "input/output error"
|
|
case EISDIR:
|
|
return "is a directory"
|
|
case ELOOP:
|
|
return "too many levels of symbolic links"
|
|
case ENAMETOOLONG:
|
|
return "filename too long"
|
|
case ENOENT:
|
|
return "no such file or directory"
|
|
case ENOSYS:
|
|
return "functionality not supported"
|
|
case ENOTDIR:
|
|
return "not a directory or a symbolic link to a directory"
|
|
case ERANGE:
|
|
return "result too large"
|
|
case ENOTEMPTY:
|
|
return "directory not empty"
|
|
case ENOTSOCK:
|
|
return "not a socket"
|
|
case ENOTSUP:
|
|
return "not supported (may be the same value as [EOPNOTSUPP])"
|
|
case EPERM:
|
|
return "operation not permitted"
|
|
case EROFS:
|
|
return "read-only file system"
|
|
default:
|
|
return "Errno(" + strconv.Itoa(int(e)) + ")"
|
|
}
|
|
}
|