| 1 | //===-- GPU implementation of fgets ---------------------------------------===// |
|---|---|
| 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/fgets.h" |
| 10 | #include "file.h" |
| 11 | #include "src/stdio/feof.h" |
| 12 | #include "src/stdio/ferror.h" |
| 13 | |
| 14 | #include <stddef.h> |
| 15 | #include <stdio.h> |
| 16 | |
| 17 | namespace LIBC_NAMESPACE { |
| 18 | |
| 19 | LLVM_LIBC_FUNCTION(char *, fgets, |
| 20 | (char *__restrict str, int count, |
| 21 | ::FILE *__restrict stream)) { |
| 22 | if (count < 1) |
| 23 | return nullptr; |
| 24 | |
| 25 | uint64_t recv_size; |
| 26 | void *buf = nullptr; |
| 27 | rpc::Client::Port port = rpc::client.open<RPC_READ_FGETS>(); |
| 28 | port.send(fill: [=](rpc::Buffer *buffer) { |
| 29 | buffer->data[0] = count; |
| 30 | buffer->data[1] = file::from_stream(f: stream); |
| 31 | }); |
| 32 | port.recv_n(dst: &buf, size: &recv_size, |
| 33 | alloc: [&](uint64_t) { return reinterpret_cast<void *>(str); }); |
| 34 | port.close(); |
| 35 | |
| 36 | if (recv_size == 0) |
| 37 | return nullptr; |
| 38 | |
| 39 | return str; |
| 40 | } |
| 41 | |
| 42 | } // namespace LIBC_NAMESPACE |
| 43 |