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tty: correctly handle partial reads
+13
-1
+13
-1
src/Tty.zig
+13
-1
src/Tty.zig
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// initialize the read buffer
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var buf: [1024]u8 = undefined;
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var read_start: usize = 0;
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// read loop
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while (!self.should_quit) {
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const n = try posix.read(self.fd, &buf);
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const n = try posix.read(self.fd, buf[read_start..]);
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var start: usize = 0;
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while (start < n) {
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const result = try parser.parse(buf[start..n], paste_allocator);
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if (result.n == 0) {
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// copy the read to the beginning. We don't use memcpy because
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// this could be overlapping, and it's also rare
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const initial_start = start;
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while (start < n) : (start += 1) {
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buf[start - initial_start] = buf[start];
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}
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read_start = start - initial_start + 1;
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continue;
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}
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read_start = 0;
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start += result.n;
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// TODO: if we get 0 byte read, copy the remaining bytes to the
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// beginning of the buffer and read mmore? this should only happen