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1 // Copyright (c) 2009 The Chromium Authors. All rights reserved. | 1 // Copyright (c) 2009 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 "app/surface/transport_dib.h" | 5 #include "app/surface/transport_dib.h" |
6 | 6 |
7 #include <unistd.h> | 7 #include <unistd.h> |
8 #include <sys/stat.h> | 8 #include <sys/stat.h> |
9 | 9 |
10 #include "base/eintr_wrapper.h" | 10 #include "base/eintr_wrapper.h" |
11 #include "base/logging.h" | |
12 #include "base/scoped_ptr.h" | 11 #include "base/scoped_ptr.h" |
13 #include "base/shared_memory.h" | 12 #include "base/shared_memory.h" |
14 #include "skia/ext/platform_canvas.h" | 13 #include "skia/ext/platform_canvas.h" |
15 | 14 |
16 TransportDIB::TransportDIB() | 15 TransportDIB::TransportDIB() |
17 : size_(0) { | 16 : size_(0) { |
18 } | 17 } |
19 | 18 |
20 TransportDIB::TransportDIB(TransportDIB::Handle dib) | 19 TransportDIB::TransportDIB(TransportDIB::Handle dib) |
21 : shared_memory_(dib, false /* read write */), | 20 : shared_memory_(dib, false /* read write */), |
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41 // static | 40 // static |
42 TransportDIB* TransportDIB::Map(TransportDIB::Handle handle) { | 41 TransportDIB* TransportDIB::Map(TransportDIB::Handle handle) { |
43 if (!is_valid(handle)) | 42 if (!is_valid(handle)) |
44 return NULL; | 43 return NULL; |
45 | 44 |
46 TransportDIB* dib = new TransportDIB(handle); | 45 TransportDIB* dib = new TransportDIB(handle); |
47 struct stat st; | 46 struct stat st; |
48 if ((fstat(handle.fd, &st) != 0) || | 47 if ((fstat(handle.fd, &st) != 0) || |
49 (!dib->shared_memory_.Map(st.st_size))) { | 48 (!dib->shared_memory_.Map(st.st_size))) { |
50 delete dib; | 49 delete dib; |
51 if (HANDLE_EINTR(close(handle.fd)) < 0) | 50 HANDLE_EINTR(close(handle.fd)); |
52 PLOG(ERROR) << "close"; | |
53 return NULL; | 51 return NULL; |
54 } | 52 } |
55 | 53 |
56 dib->size_ = st.st_size; | 54 dib->size_ = st.st_size; |
57 | 55 |
58 return dib; | 56 return dib; |
59 } | 57 } |
60 | 58 |
61 bool TransportDIB::is_valid(Handle dib) { | 59 bool TransportDIB::is_valid(Handle dib) { |
62 return dib.fd >= 0; | 60 return dib.fd >= 0; |
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73 return shared_memory_.memory(); | 71 return shared_memory_.memory(); |
74 } | 72 } |
75 | 73 |
76 TransportDIB::Id TransportDIB::id() const { | 74 TransportDIB::Id TransportDIB::id() const { |
77 return shared_memory_.id(); | 75 return shared_memory_.id(); |
78 } | 76 } |
79 | 77 |
80 TransportDIB::Handle TransportDIB::handle() const { | 78 TransportDIB::Handle TransportDIB::handle() const { |
81 return shared_memory_.handle(); | 79 return shared_memory_.handle(); |
82 } | 80 } |
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