1 // Copyright (c) 2011 The Chromium Authors. All rights reserved. 2 // Use of this source code is governed by a BSD-style license that can be 3 // found in the LICENSE file. 4 5 #ifndef IPC_IPC_PLATFORM_FILE_H_ 6 #define IPC_IPC_PLATFORM_FILE_H_ 7 8 #include "base/basictypes.h" 9 #include "base/files/file.h" 10 #include "base/process/process.h" 11 #include "ipc/ipc_export.h" 12 13 #if defined(OS_POSIX) 14 #include "base/file_descriptor_posix.h" 15 #endif 16 17 namespace IPC { 18 19 #if defined(OS_WIN) 20 typedef base::PlatformFile PlatformFileForTransit; 21 #elif defined(OS_POSIX) 22 typedef base::FileDescriptor PlatformFileForTransit; 23 #endif 24 25 inline PlatformFileForTransit InvalidPlatformFileForTransit() { 26 #if defined(OS_WIN) 27 return INVALID_HANDLE_VALUE; 28 #elif defined(OS_POSIX) 29 return base::FileDescriptor(); 30 #endif 31 } 32 33 inline base::PlatformFile PlatformFileForTransitToPlatformFile( 34 const PlatformFileForTransit& transit) { 35 #if defined(OS_WIN) 36 return transit; 37 #elif defined(OS_POSIX) 38 return transit.fd; 39 #endif 40 } 41 42 inline base::File PlatformFileForTransitToFile( 43 const PlatformFileForTransit& transit) { 44 #if defined(OS_WIN) 45 return base::File(transit); 46 #elif defined(OS_POSIX) 47 return base::File(transit.fd); 48 #endif 49 } 50 51 // Returns a file handle equivalent to |file| that can be used in |process|. 52 IPC_EXPORT PlatformFileForTransit GetFileHandleForProcess( 53 base::PlatformFile file, 54 base::ProcessHandle process, 55 bool close_source_handle); 56 57 // Returns a file handle equivalent to |file| that can be used in |process|. 58 // Note that this function takes ownership of |file|. 59 IPC_EXPORT PlatformFileForTransit TakeFileHandleForProcess( 60 base::File file, 61 base::ProcessHandle process); 62 63 } // namespace IPC 64 65 #endif // IPC_IPC_PLATFORM_FILE_H_ 66
