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1 // Copyright 2014 The Chromium Authors. All rights reserved. | 1 // Copyright 2014 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 // NOT DEAD CODE! | 5 // NOT DEAD CODE! |
6 // This code isn't dead, even if it isn't currently being used. Please refer to: | 6 // This code isn't dead, even if it isn't currently being used. Please refer to: |
7 // https://www.chromium.org/developers/how-tos/compact-language-detector-cld-dat
a-source-configuration | 7 // https://www.chromium.org/developers/how-tos/compact-language-detector-cld-dat
a-source-configuration |
8 | 8 |
9 #include "data_file_renderer_cld_data_provider.h" | 9 #include "components/translate/content/renderer/data_file_renderer_cld_data_prov
ider.h" |
| 10 |
| 11 #include <utility> |
10 | 12 |
11 #include "base/files/file.h" | 13 #include "base/files/file.h" |
12 #include "base/files/memory_mapped_file.h" | 14 #include "base/files/memory_mapped_file.h" |
13 #include "base/lazy_instance.h" | 15 #include "base/lazy_instance.h" |
14 #include "base/logging.h" | 16 #include "base/logging.h" |
15 #include "components/translate/content/common/data_file_cld_data_provider_messag
es.h" | 17 #include "components/translate/content/common/data_file_cld_data_provider_messag
es.h" |
16 #include "content/public/renderer/render_frame_observer.h" | 18 #include "content/public/renderer/render_frame_observer.h" |
17 #include "ipc/ipc_message.h" | 19 #include "ipc/ipc_message.h" |
18 #include "ipc/ipc_message_macros.h" | 20 #include "ipc/ipc_message_macros.h" |
19 #include "ipc/ipc_platform_file.h" | 21 #include "ipc/ipc_platform_file.h" |
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85 if (IsCldDataAvailable()) | 87 if (IsCldDataAvailable()) |
86 return; | 88 return; |
87 | 89 |
88 if (!file.IsValid()) { | 90 if (!file.IsValid()) { |
89 LOG(ERROR) << "Can't find the CLD data file."; | 91 LOG(ERROR) << "Can't find the CLD data file."; |
90 return; | 92 return; |
91 } | 93 } |
92 | 94 |
93 // mmap the file | 95 // mmap the file |
94 g_cld_mmap.Get().value = new base::MemoryMappedFile(); | 96 g_cld_mmap.Get().value = new base::MemoryMappedFile(); |
95 bool initialized = g_cld_mmap.Get().value->Initialize(file.Pass()); | 97 bool initialized = g_cld_mmap.Get().value->Initialize(std::move(file)); |
96 if (!initialized) { | 98 if (!initialized) { |
97 LOG(ERROR) << "mmap initialization failed"; | 99 LOG(ERROR) << "mmap initialization failed"; |
98 delete g_cld_mmap.Get().value; | 100 delete g_cld_mmap.Get().value; |
99 g_cld_mmap.Get().value = NULL; | 101 g_cld_mmap.Get().value = NULL; |
100 return; | 102 return; |
101 } | 103 } |
102 | 104 |
103 // Sanity checks | 105 // Sanity checks |
104 uint64_t max_int32 = std::numeric_limits<int32_t>::max(); | 106 uint64_t max_int32 = std::numeric_limits<int32_t>::max(); |
105 if (data_length + data_offset > g_cld_mmap.Get().value->length() || | 107 if (data_length + data_offset > g_cld_mmap.Get().value->length() || |
106 data_length > max_int32) { // max signed 32 bit integer | 108 data_length > max_int32) { // max signed 32 bit integer |
107 LOG(ERROR) << "Illegal mmap config: data_offset=" << data_offset | 109 LOG(ERROR) << "Illegal mmap config: data_offset=" << data_offset |
108 << ", data_length=" << data_length | 110 << ", data_length=" << data_length |
109 << ", mmap->length()=" << g_cld_mmap.Get().value->length(); | 111 << ", mmap->length()=" << g_cld_mmap.Get().value->length(); |
110 delete g_cld_mmap.Get().value; | 112 delete g_cld_mmap.Get().value; |
111 g_cld_mmap.Get().value = NULL; | 113 g_cld_mmap.Get().value = NULL; |
112 return; | 114 return; |
113 } | 115 } |
114 | 116 |
115 // Initialize the CLD subsystem... and it's all done! | 117 // Initialize the CLD subsystem... and it's all done! |
116 const uint8_t* data_ptr = g_cld_mmap.Get().value->data() + data_offset; | 118 const uint8_t* data_ptr = g_cld_mmap.Get().value->data() + data_offset; |
117 CLD2::loadDataFromRawAddress(data_ptr, data_length); | 119 CLD2::loadDataFromRawAddress(data_ptr, data_length); |
118 DCHECK(CLD2::isDataLoaded()) << "Failed to load CLD data from mmap"; | 120 DCHECK(CLD2::isDataLoaded()) << "Failed to load CLD data from mmap"; |
119 if (!cld_available_callback_.is_null()) { | 121 if (!cld_available_callback_.is_null()) { |
120 cld_available_callback_.Run(); | 122 cld_available_callback_.Run(); |
121 } | 123 } |
122 } | 124 } |
123 | 125 |
124 } // namespace translate | 126 } // namespace translate |
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