| ... | @@ -39,5 +39,32 @@ pub fn FixedBufferStream(comptime Buffer: type) type { | ... | @@ -39,5 +39,32 @@ pub fn FixedBufferStream(comptime Buffer: type) type { |
| 39 | .state = @ptrCast(self), | 39 | .state = @ptrCast(self), |
| 40 | }; | 40 | }; |
| 41 | } | 41 | } |
| | 42 | |
| | 43 | pub const WriteError = error{NoSpaceLeft}; |
| | 44 | pub usingnamespace nio.Writable(@This(), ._var); |
| | 45 | /// If the returned number of bytes written is less than requested, the buffer is full. |
| | 46 | /// Returns `error.NoSpaceLeft` when no bytes would be written. |
| | 47 | pub fn write(self: *Self, bytes: []const u8) WriteError!usize { |
| | 48 | if (bytes.len == 0) return 0; |
| | 49 | if (self.pos >= self.buffer.len) return error.NoSpaceLeft; |
| | 50 | const n = @min(self.buffer.len - self.pos, bytes.len); |
| | 51 | @memcpy(self.buffer[self.pos..][0..n], bytes[0..n]); |
| | 52 | self.pos += n; |
| | 53 | if (n == 0) return error.NoSpaceLeft; |
| | 54 | return n; |
| | 55 | } |
| | 56 | |
| | 57 | pub fn anyWritable(self: *Self) nio.AnyWritable { |
| | 58 | const S = struct { |
| | 59 | fn write(s: *allowzero anyopaque, buffer: []u8) anyerror!usize { |
| | 60 | const fbs: *Self = @ptrCast(@alignCast(s)); |
| | 61 | return fbs.write(buffer); |
| | 62 | } |
| | 63 | }; |
| | 64 | return .{ |
| | 65 | .vtable = &.{ .write = S.write }, |
| | 66 | .state = @ptrCast(self), |
| | 67 | }; |
| | 68 | } |
| 42 | }; | 69 | }; |
| 43 | } | 70 | } |
Meghan Denny <hello@nektro.net> 2026-01-02 19:11:10 -08:00