libc/src/stdio/gpu/fclose.cpp

   1 //===-- GPU Implementation of fclose --------------------------------------===//
   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/fclose.h"
  10 #include "src/stdio/gpu/file.h"
  11
  12 #include <stdio.h>
  13
  14 namespace LIBC_NAMESPACE {
  15
  16 LLVM_LIBC_FUNCTION(int, fclose, (::FILE * stream)) {
  17   uint64_t ret = 0;
  18   uintptr_t file = reinterpret_cast<uintptr_t>(stream);
  19   rpc::Client::Port port = rpc::client.open<RPC_CLOSE_FILE>();
  20   port.send_and_recv([=](rpc::Buffer *buffer) { buffer->data[0] = file; },
  21                      [&](rpc::Buffer *buffer) { ret = buffer->data[0]; });
  22   port.close();
  23
  24   if (ret != 0)
  25     return EOF;
  26   return static_cast<int>(ret);
  27 }
  28
  29 } // namespace LIBC_NAMESPACE