| 1 | //===-- Implementation of ungetc ------------------------------------------===// |
|---|---|
| 2 | // |
| 3 | // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions. |
| 4 | // See https://llvm.org/LICENSE.txt for license information. |
| 5 | // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception |
| 6 | // |
| 7 | //===----------------------------------------------------------------------===// |
| 8 | |
| 9 | #include "src/stdio/ungetc.h" |
| 10 | #include "file.h" |
| 11 | |
| 12 | #include <stdio.h> |
| 13 | |
| 14 | namespace LIBC_NAMESPACE { |
| 15 | |
| 16 | LLVM_LIBC_FUNCTION(int, ungetc, (int c, ::FILE *stream)) { |
| 17 | int ret; |
| 18 | rpc::Client::Port port = rpc::client.open<RPC_UNGETC>(); |
| 19 | port.send_and_recv( |
| 20 | fill: [=](rpc::Buffer *buffer) { |
| 21 | buffer->data[0] = c; |
| 22 | buffer->data[1] = file::from_stream(f: stream); |
| 23 | }, |
| 24 | use: [&](rpc::Buffer *buffer) { ret = static_cast<int>(buffer->data[0]); }); |
| 25 | port.close(); |
| 26 | return ret; |
| 27 | } |
| 28 | |
| 29 | } // namespace LIBC_NAMESPACE |
| 30 |