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Issue 2847033003: Get rid of SharedMemory::GiveToProcess. (Closed)
Patch Set: Comments from avi. Created 3 years, 7 months ago
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1 // Copyright (c) 2012 The Chromium Authors. All rights reserved. 1 // Copyright (c) 2012 The Chromium Authors. All rights reserved.
2 // Use of this source code is governed by a BSD-style license that can be 2 // Use of this source code is governed by a BSD-style license that can be
3 // found in the LICENSE file. 3 // found in the LICENSE file.
4 4
5 #include "base/memory/shared_memory.h" 5 #include "base/memory/shared_memory.h"
6 6
7 #include <errno.h> 7 #include <errno.h>
8 #include <fcntl.h> 8 #include <fcntl.h>
9 #include <stddef.h> 9 #include <stddef.h>
10 #include <sys/mman.h> 10 #include <sys/mman.h>
(...skipping 114 matching lines...) Expand 10 before | Expand all | Expand 10 after
125 } 125 }
126 } 126 }
127 127
128 SharedMemoryHandle SharedMemory::GetReadOnlyHandle() { 128 SharedMemoryHandle SharedMemory::GetReadOnlyHandle() {
129 // Untrusted code can't create descriptors or handles, which is needed to 129 // Untrusted code can't create descriptors or handles, which is needed to
130 // drop permissions. 130 // drop permissions.
131 return SharedMemoryHandle(); 131 return SharedMemoryHandle();
132 } 132 }
133 133
134 bool SharedMemory::ShareToProcessCommon(ProcessHandle process, 134 bool SharedMemory::ShareToProcessCommon(ProcessHandle process,
135 SharedMemoryHandle* new_handle, 135 SharedMemoryHandle* new_handle) {
136 bool close_self) {
137 *new_handle = shm_.Duplicate(); 136 *new_handle = shm_.Duplicate();
138 if (close_self) {
139 Unmap();
140 Close();
141 }
142 return new_handle->IsValid(); 137 return new_handle->IsValid();
143 } 138 }
144 139
145 } // namespace base 140 } // namespace base
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