64a4ab3ba5
We originally exported WASI errno as we originally supported invoking host functions directly (e.g. without a guest). This was an invalid call pattern, and we removed that. However, we left the errnos exported even though the caller of a guest won't ever see them. This prevented us from re-using them cleanly in features such as logging. This moves all constants including function names and flag enums internal so that there is less duplication between logging and implementation of wasi functions. This also helps in reference searches, as we can analyze uses of a particular function name. The only constant left exported is the module name, as there's a use case for that (overriding implementations via FunctionBuilder). Signed-off-by: Adrian Cole <adrian@tetrate.io>
136 lines
3.4 KiB
Go
136 lines
3.4 KiB
Go
package wasi_snapshot_preview1
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import (
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"fmt"
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)
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const (
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FdAdviseName = "fd_advise"
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FdAllocateName = "fd_allocate"
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FdCloseName = "fd_close"
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FdDatasyncName = "fd_datasync"
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FdFdstatGetName = "fd_fdstat_get"
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FdFdstatSetFlagsName = "fd_fdstat_set_flags"
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FdFdstatSetRightsName = "fd_fdstat_set_rights"
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FdFilestatGetName = "fd_filestat_get"
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FdFilestatSetSizeName = "fd_filestat_set_size"
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FdFilestatSetTimesName = "fd_filestat_set_times"
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FdPreadName = "fd_pread"
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FdPrestatGetName = "fd_prestat_get"
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FdPrestatDirNameName = "fd_prestat_dir_name"
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FdPwriteName = "fd_pwrite"
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FdReadName = "fd_read"
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FdReaddirName = "fd_readdir"
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FdRenumberName = "fd_renumber"
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FdSeekName = "fd_seek"
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FdSyncName = "fd_sync"
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FdTellName = "fd_tell"
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FdWriteName = "fd_write"
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PathCreateDirectoryName = "path_create_directory"
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PathFilestatGetName = "path_filestat_get"
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PathFilestatSetTimesName = "path_filestat_set_times"
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PathLinkName = "path_link"
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PathOpenName = "path_open"
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PathReadlinkName = "path_readlink"
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PathRemoveDirectoryName = "path_remove_directory"
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PathRenameName = "path_rename"
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PathSymlinkName = "path_symlink"
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PathUnlinkFileName = "path_unlink_file"
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)
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// oflags are open flags used by path_open
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// See https://github.com/WebAssembly/WASI/blob/snapshot-01/phases/snapshot/docs.md#-oflags-flagsu16
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const (
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// O_CREAT creates a file if it does not exist.
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O_CREAT uint16 = 1 << iota //nolint
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// O_DIRECTORY fails if not a directory.
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O_DIRECTORY
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// O_EXCL fails if file already exists.
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O_EXCL //nolint
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// O_TRUNC truncates the file to size 0.
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O_TRUNC //nolint
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)
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func OflagsString(oflags int) string {
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return flagsString(oflagNames[:], oflags)
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}
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var oflagNames = [...]string{
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"CREAT",
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"DIRECTORY",
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"EXCL",
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"TRUNC",
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}
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// file descriptor flags
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// See https://github.com/WebAssembly/WASI/blob/snapshot-01/phases/snapshot/docs.md#fdflags
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const (
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FD_APPEND uint16 = 1 << iota //nolint
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FD_DSYNC
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FD_NONBLOCK
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FD_RSYNC
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FD_SYNC
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)
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func FdFlagsString(fdflags int) string {
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return flagsString(fdflagNames[:], fdflags)
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}
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var fdflagNames = [...]string{
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"APPEND",
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"DSYNC",
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"NONBLOCK",
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"RSYNC",
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"SYNC",
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}
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// See https://github.com/WebAssembly/WASI/blob/snapshot-01/phases/snapshot/docs.md#lookupflags
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const (
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// LOOKUP_SYMLINK_FOLLOW expands a path if it resolves into a symbolic
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// link.
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LOOKUP_SYMLINK_FOLLOW uint16 = 1 << iota //nolint
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)
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var lookupflagNames = [...]string{
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"SYMLINK_FOLLOW",
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}
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func LookupflagsString(lookupflags int) string {
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return flagsString(lookupflagNames[:], lookupflags)
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}
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// DirentSize is the size of the dirent struct, which should be followed by the
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// length of a file name.
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const DirentSize = uint32(24)
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const (
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FILETYPE_UNKNOWN uint8 = iota
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FILETYPE_BLOCK_DEVICE
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FILETYPE_CHARACTER_DEVICE
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FILETYPE_DIRECTORY
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FILETYPE_REGULAR_FILE
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FILETYPE_SOCKET_DGRAM
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FILETYPE_SOCKET_STREAM
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FILETYPE_SYMBOLIC_LINK
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)
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// FiletypeName returns string name of the file type.
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func FiletypeName(filetype uint8) string {
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if int(filetype) < len(filetypeToString) {
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return filetypeToString[filetype]
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}
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return fmt.Sprintf("filetype(%d)", filetype)
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}
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var filetypeToString = [...]string{
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"UNKNOWN",
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"BLOCK_DEVICE",
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"CHARACTER_DEVICE",
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"DIRECTORY",
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"REGULAR_FILE",
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"SOCKET_DGRAM",
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"SOCKET_STREAM",
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"SYMBOLIC_LINK",
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}
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