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//===-- GPU implementation of fgets ---------------------------------------===//
//
// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
// See https://llvm.org/LICENSE.txt for license information.
// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
//
//===----------------------------------------------------------------------===//
#include "src/stdio/fgets.h"
#include "file.h"
#include "hdr/stdio_macros.h" // for EOF.
#include "hdr/types/FILE.h"
#include "src/__support/common.h"
#include <stdint.h>
namespace LIBC_NAMESPACE_DECL {
LLVM_LIBC_FUNCTION(char *, fgets,
(char *__restrict str, int count,
::FILE *__restrict stream)) {
if (count < 1)
return nullptr;
uint64_t recv_size;
void *buf = nullptr;
rpc::Client::Port port = rpc::client.open<LIBC_READ_FGETS>();
port.send([=](rpc::Buffer *buffer, uint32_t) {
buffer->data[0] = count;
buffer->data[1] = file::from_stream(stream);
});
port.recv_n(&buf, &recv_size,
[&](uint64_t) { return reinterpret_cast<void *>(str); });
port.close();
if (recv_size == 0)
return nullptr;
return str;
}
} // namespace LIBC_NAMESPACE_DECL
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