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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 "content/renderer/pepper/host_var_tracker.h" | 5 #include "content/renderer/pepper/host_var_tracker.h" |
| 6 | 6 |
| 7 #include <tuple> | 7 #include <tuple> |
| 8 | 8 |
| 9 #include "base/logging.h" | 9 #include "base/logging.h" |
| 10 #include "content/renderer/pepper/host_array_buffer_var.h" | 10 #include "content/renderer/pepper/host_array_buffer_var.h" |
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| 35 bool HostVarTracker::V8ObjectVarKey::operator<( | 35 bool HostVarTracker::V8ObjectVarKey::operator<( |
| 36 const V8ObjectVarKey& other) const { | 36 const V8ObjectVarKey& other) const { |
| 37 return std::tie(instance, hash) < std::tie(other.instance, other.hash); | 37 return std::tie(instance, hash) < std::tie(other.instance, other.hash); |
| 38 } | 38 } |
| 39 | 39 |
| 40 HostVarTracker::HostVarTracker() | 40 HostVarTracker::HostVarTracker() |
| 41 : VarTracker(SINGLE_THREADED), last_shared_memory_map_id_(0) {} | 41 : VarTracker(SINGLE_THREADED), last_shared_memory_map_id_(0) {} |
| 42 | 42 |
| 43 HostVarTracker::~HostVarTracker() {} | 43 HostVarTracker::~HostVarTracker() {} |
| 44 | 44 |
| 45 ArrayBufferVar* HostVarTracker::CreateArrayBuffer(uint32 size_in_bytes) { | 45 ArrayBufferVar* HostVarTracker::CreateArrayBuffer(uint32_t size_in_bytes) { |
| 46 return new HostArrayBufferVar(size_in_bytes); | 46 return new HostArrayBufferVar(size_in_bytes); |
| 47 } | 47 } |
| 48 | 48 |
| 49 ArrayBufferVar* HostVarTracker::CreateShmArrayBuffer( | 49 ArrayBufferVar* HostVarTracker::CreateShmArrayBuffer( |
| 50 uint32 size_in_bytes, | 50 uint32_t size_in_bytes, |
| 51 base::SharedMemoryHandle handle) { | 51 base::SharedMemoryHandle handle) { |
| 52 return new HostArrayBufferVar(size_in_bytes, handle); | 52 return new HostArrayBufferVar(size_in_bytes, handle); |
| 53 } | 53 } |
| 54 | 54 |
| 55 void HostVarTracker::AddV8ObjectVar(V8ObjectVar* object_var) { | 55 void HostVarTracker::AddV8ObjectVar(V8ObjectVar* object_var) { |
| 56 CheckThreadingPreconditions(); | 56 CheckThreadingPreconditions(); |
| 57 v8::HandleScope handle_scope(object_var->instance()->GetIsolate()); | 57 v8::HandleScope handle_scope(object_var->instance()->GetIsolate()); |
| 58 DCHECK(GetForV8Object(object_var->instance()->pp_instance(), | 58 DCHECK(GetForV8Object(object_var->instance()->pp_instance(), |
| 59 object_var->GetHandle()) == object_map_.end()); | 59 object_var->GetHandle()) == object_map_.end()); |
| 60 object_map_.insert(std::make_pair(V8ObjectVarKey(object_var), object_var)); | 60 object_map_.insert(std::make_pair(V8ObjectVarKey(object_var), object_var)); |
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| 147 | 147 |
| 148 for (ObjectMap::iterator it = range.first; it != range.second; ++it) { | 148 for (ObjectMap::iterator it = range.first; it != range.second; ++it) { |
| 149 if (object == it->second->GetHandle()) | 149 if (object == it->second->GetHandle()) |
| 150 return it; | 150 return it; |
| 151 } | 151 } |
| 152 return object_map_.end(); | 152 return object_map_.end(); |
| 153 } | 153 } |
| 154 | 154 |
| 155 int HostVarTracker::TrackSharedMemoryHandle(PP_Instance instance, | 155 int HostVarTracker::TrackSharedMemoryHandle(PP_Instance instance, |
| 156 base::SharedMemoryHandle handle, | 156 base::SharedMemoryHandle handle, |
| 157 uint32 size_in_bytes) { | 157 uint32_t size_in_bytes) { |
| 158 SharedMemoryMapEntry entry; | 158 SharedMemoryMapEntry entry; |
| 159 entry.instance = instance; | 159 entry.instance = instance; |
| 160 entry.handle = handle; | 160 entry.handle = handle; |
| 161 entry.size_in_bytes = size_in_bytes; | 161 entry.size_in_bytes = size_in_bytes; |
| 162 | 162 |
| 163 // Find a free id for our map. | 163 // Find a free id for our map. |
| 164 while (shared_memory_map_.find(last_shared_memory_map_id_) != | 164 while (shared_memory_map_.find(last_shared_memory_map_id_) != |
| 165 shared_memory_map_.end()) { | 165 shared_memory_map_.end()) { |
| 166 ++last_shared_memory_map_id_; | 166 ++last_shared_memory_map_id_; |
| 167 } | 167 } |
| 168 shared_memory_map_[last_shared_memory_map_id_] = entry; | 168 shared_memory_map_[last_shared_memory_map_id_] = entry; |
| 169 return last_shared_memory_map_id_; | 169 return last_shared_memory_map_id_; |
| 170 } | 170 } |
| 171 | 171 |
| 172 bool HostVarTracker::StopTrackingSharedMemoryHandle( | 172 bool HostVarTracker::StopTrackingSharedMemoryHandle( |
| 173 int id, | 173 int id, |
| 174 PP_Instance instance, | 174 PP_Instance instance, |
| 175 base::SharedMemoryHandle* handle, | 175 base::SharedMemoryHandle* handle, |
| 176 uint32* size_in_bytes) { | 176 uint32_t* size_in_bytes) { |
| 177 SharedMemoryMap::iterator it = shared_memory_map_.find(id); | 177 SharedMemoryMap::iterator it = shared_memory_map_.find(id); |
| 178 if (it == shared_memory_map_.end()) | 178 if (it == shared_memory_map_.end()) |
| 179 return false; | 179 return false; |
| 180 if (it->second.instance != instance) | 180 if (it->second.instance != instance) |
| 181 return false; | 181 return false; |
| 182 | 182 |
| 183 *handle = it->second.handle; | 183 *handle = it->second.handle; |
| 184 *size_in_bytes = it->second.size_in_bytes; | 184 *size_in_bytes = it->second.size_in_bytes; |
| 185 shared_memory_map_.erase(it); | 185 shared_memory_map_.erase(it); |
| 186 return true; | 186 return true; |
| 187 } | 187 } |
| 188 | 188 |
| 189 } // namespace content | 189 } // namespace content |
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