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- package os2
- import "core:io"
- import "base:runtime"
- General_Error :: enum u32 {
- None,
- Permission_Denied,
- Exist,
- Not_Exist,
- Closed,
- Timeout,
- Broken_Pipe,
- // Indicates that an attempt to retrieve a file's size was made, but the
- // file doesn't have a size.
- No_Size,
- Invalid_File,
- Invalid_Dir,
- Invalid_Path,
- Unsupported,
- }
- Platform_Error :: enum i32 {None=0}
- Error :: union #shared_nil {
- General_Error,
- io.Error,
- runtime.Allocator_Error,
- Platform_Error,
- }
- #assert(size_of(Error) == size_of(u64))
- is_platform_error :: proc(ferr: Error) -> (err: i32, ok: bool) {
- v := ferr.(Platform_Error) or_else {}
- return i32(v), i32(v) != 0
- }
- error_string :: proc(ferr: Error) -> string {
- if ferr == nil {
- return ""
- }
- switch e in ferr {
- case General_Error:
- switch e {
- case .None: return ""
- case .Permission_Denied: return "permission denied"
- case .Exist: return "file already exists"
- case .Not_Exist: return "file does not exist"
- case .Closed: return "file already closed"
- case .Timeout: return "i/o timeout"
- case .Broken_Pipe: return "Broken pipe"
- case .No_Size: return "file has no definite size"
- case .Invalid_File: return "invalid file"
- case .Invalid_Dir: return "invalid directory"
- case .Invalid_Path: return "invalid path"
- case .Unsupported: return "unsupported"
- }
- case io.Error:
- switch e {
- case .None: return ""
- case .EOF: return "eof"
- case .Unexpected_EOF: return "unexpected eof"
- case .Short_Write: return "short write"
- case .Invalid_Write: return "invalid write result"
- case .Short_Buffer: return "short buffer"
- case .No_Progress: return "multiple read calls return no data or error"
- case .Invalid_Whence: return "invalid whence"
- case .Invalid_Offset: return "invalid offset"
- case .Invalid_Unread: return "invalid unread"
- case .Negative_Read: return "negative read"
- case .Negative_Write: return "negative write"
- case .Negative_Count: return "negative count"
- case .Buffer_Full: return "buffer full"
- case .Unknown, .Empty: //
- }
- case runtime.Allocator_Error:
- switch e {
- case .None: return ""
- case .Out_Of_Memory: return "out of memory"
- case .Invalid_Pointer: return "invalid allocator pointer"
- case .Invalid_Argument: return "invalid allocator argument"
- case .Mode_Not_Implemented: return "allocator mode not implemented"
- }
- case Platform_Error:
- return _error_string(i32(e))
- }
- return "unknown error"
- }
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