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/__support/macros/config.h"
  11 #include "src/stdio/gpu/file.h"
  12
  13 #include "hdr/stdio_macros.h"
  14 #include "hdr/types/FILE.h"
  15
  16 namespace LIBC_NAMESPACE_DECL {
  17
  18 LLVM_LIBC_FUNCTION(int, fclose, (::FILE * stream)) {
  19   uint64_t ret = 0;
  20   uintptr_t file = reinterpret_cast<uintptr_t>(stream);
  21   rpc::Client::Port port = rpc::client.open<RPC_CLOSE_FILE>();
  22   port.send_and_recv(
  23       [=](rpc::Buffer *buffer, uint32_t) { buffer->data[0] = file; },
  24       [&](rpc::Buffer *buffer, uint32_t) { ret = buffer->data[0]; });
  25   port.close();
  26
  27   if (ret != 0)
  28     return EOF;
  29   return static_cast<int>(ret);
  30 }
  31
  32 } // namespace LIBC_NAMESPACE_DECL