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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 "data_file_renderer_cld_data_provider.h" |
10 | 10 |
11 #include "base/basictypes.h" | |
12 #include "base/files/file.h" | 11 #include "base/files/file.h" |
13 #include "base/files/memory_mapped_file.h" | 12 #include "base/files/memory_mapped_file.h" |
14 #include "base/lazy_instance.h" | 13 #include "base/lazy_instance.h" |
15 #include "base/logging.h" | 14 #include "base/logging.h" |
16 #include "components/translate/content/common/data_file_cld_data_provider_messag
es.h" | 15 #include "components/translate/content/common/data_file_cld_data_provider_messag
es.h" |
17 #include "content/public/renderer/render_frame_observer.h" | 16 #include "content/public/renderer/render_frame_observer.h" |
18 #include "ipc/ipc_message.h" | 17 #include "ipc/ipc_message.h" |
19 #include "ipc/ipc_message_macros.h" | 18 #include "ipc/ipc_message_macros.h" |
20 #include "ipc/ipc_platform_file.h" | 19 #include "ipc/ipc_platform_file.h" |
21 #include "third_party/cld_2/src/public/compact_lang_det.h" | 20 #include "third_party/cld_2/src/public/compact_lang_det.h" |
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65 return CLD2::isDataLoaded(); // ground truth, independent of our state. | 64 return CLD2::isDataLoaded(); // ground truth, independent of our state. |
66 } | 65 } |
67 | 66 |
68 void DataFileRendererCldDataProvider::SetCldAvailableCallback( | 67 void DataFileRendererCldDataProvider::SetCldAvailableCallback( |
69 base::Callback<void(void)> callback) { | 68 base::Callback<void(void)> callback) { |
70 cld_available_callback_ = callback; | 69 cld_available_callback_ = callback; |
71 } | 70 } |
72 | 71 |
73 void DataFileRendererCldDataProvider::OnCldDataAvailable( | 72 void DataFileRendererCldDataProvider::OnCldDataAvailable( |
74 const IPC::PlatformFileForTransit ipc_file_handle, | 73 const IPC::PlatformFileForTransit ipc_file_handle, |
75 const uint64 data_offset, | 74 const uint64_t data_offset, |
76 const uint64 data_length) { | 75 const uint64_t data_length) { |
77 LoadCldData(IPC::PlatformFileForTransitToFile(ipc_file_handle), | 76 LoadCldData(IPC::PlatformFileForTransitToFile(ipc_file_handle), |
78 data_offset, | 77 data_offset, |
79 data_length); | 78 data_length); |
80 } | 79 } |
81 | 80 |
82 void DataFileRendererCldDataProvider::LoadCldData(base::File file, | 81 void DataFileRendererCldDataProvider::LoadCldData(base::File file, |
83 const uint64 data_offset, | 82 const uint64_t data_offset, |
84 const uint64 data_length) { | 83 const uint64_t data_length) { |
85 // Terminate immediately if data is already loaded. | 84 // Terminate immediately if data is already loaded. |
86 if (IsCldDataAvailable()) | 85 if (IsCldDataAvailable()) |
87 return; | 86 return; |
88 | 87 |
89 if (!file.IsValid()) { | 88 if (!file.IsValid()) { |
90 LOG(ERROR) << "Can't find the CLD data file."; | 89 LOG(ERROR) << "Can't find the CLD data file."; |
91 return; | 90 return; |
92 } | 91 } |
93 | 92 |
94 // mmap the file | 93 // mmap the file |
95 g_cld_mmap.Get().value = new base::MemoryMappedFile(); | 94 g_cld_mmap.Get().value = new base::MemoryMappedFile(); |
96 bool initialized = g_cld_mmap.Get().value->Initialize(file.Pass()); | 95 bool initialized = g_cld_mmap.Get().value->Initialize(file.Pass()); |
97 if (!initialized) { | 96 if (!initialized) { |
98 LOG(ERROR) << "mmap initialization failed"; | 97 LOG(ERROR) << "mmap initialization failed"; |
99 delete g_cld_mmap.Get().value; | 98 delete g_cld_mmap.Get().value; |
100 g_cld_mmap.Get().value = NULL; | 99 g_cld_mmap.Get().value = NULL; |
101 return; | 100 return; |
102 } | 101 } |
103 | 102 |
104 // Sanity checks | 103 // Sanity checks |
105 uint64 max_int32 = std::numeric_limits<int32>::max(); | 104 uint64_t max_int32 = std::numeric_limits<int32_t>::max(); |
106 if (data_length + data_offset > g_cld_mmap.Get().value->length() || | 105 if (data_length + data_offset > g_cld_mmap.Get().value->length() || |
107 data_length > max_int32) { // max signed 32 bit integer | 106 data_length > max_int32) { // max signed 32 bit integer |
108 LOG(ERROR) << "Illegal mmap config: data_offset=" << data_offset | 107 LOG(ERROR) << "Illegal mmap config: data_offset=" << data_offset |
109 << ", data_length=" << data_length | 108 << ", data_length=" << data_length |
110 << ", mmap->length()=" << g_cld_mmap.Get().value->length(); | 109 << ", mmap->length()=" << g_cld_mmap.Get().value->length(); |
111 delete g_cld_mmap.Get().value; | 110 delete g_cld_mmap.Get().value; |
112 g_cld_mmap.Get().value = NULL; | 111 g_cld_mmap.Get().value = NULL; |
113 return; | 112 return; |
114 } | 113 } |
115 | 114 |
116 // Initialize the CLD subsystem... and it's all done! | 115 // Initialize the CLD subsystem... and it's all done! |
117 const uint8* data_ptr = g_cld_mmap.Get().value->data() + data_offset; | 116 const uint8_t* data_ptr = g_cld_mmap.Get().value->data() + data_offset; |
118 CLD2::loadDataFromRawAddress(data_ptr, data_length); | 117 CLD2::loadDataFromRawAddress(data_ptr, data_length); |
119 DCHECK(CLD2::isDataLoaded()) << "Failed to load CLD data from mmap"; | 118 DCHECK(CLD2::isDataLoaded()) << "Failed to load CLD data from mmap"; |
120 if (!cld_available_callback_.is_null()) { | 119 if (!cld_available_callback_.is_null()) { |
121 cld_available_callback_.Run(); | 120 cld_available_callback_.Run(); |
122 } | 121 } |
123 } | 122 } |
124 | 123 |
125 } // namespace translate | 124 } // namespace translate |
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