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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 "ppapi/proxy/plugin_array_buffer_var.h" | 5 #include "ppapi/proxy/plugin_array_buffer_var.h" |
| 6 | 6 |
| 7 #include <stdlib.h> | 7 #include <stdlib.h> |
| 8 | 8 |
| 9 #include <limits> | 9 #include <limits> |
| 10 | 10 |
| 11 #include "base/memory/shared_memory.h" | 11 #include "base/memory/shared_memory.h" |
| 12 #include "ppapi/c/dev/ppb_buffer_dev.h" | 12 #include "ppapi/c/dev/ppb_buffer_dev.h" |
| 13 #include "ppapi/proxy/plugin_dispatcher.h" | 13 #include "ppapi/proxy/plugin_dispatcher.h" |
| 14 #include "ppapi/proxy/plugin_globals.h" | 14 #include "ppapi/proxy/plugin_globals.h" |
| 15 #include "ppapi/proxy/ppapi_messages.h" | 15 #include "ppapi/proxy/ppapi_messages.h" |
| 16 #include "ppapi/proxy/serialized_structs.h" | 16 #include "ppapi/proxy/serialized_structs.h" |
| 17 #include "ppapi/shared_impl/host_resource.h" | 17 #include "ppapi/shared_impl/host_resource.h" |
| 18 #include "ppapi/shared_impl/resource.h" | 18 #include "ppapi/shared_impl/resource.h" |
| 19 #include "ppapi/thunk/enter.h" | 19 #include "ppapi/thunk/enter.h" |
| 20 #include "ppapi/thunk/ppb_buffer_api.h" | 20 #include "ppapi/thunk/ppb_buffer_api.h" |
| 21 | 21 |
| 22 using base::SharedMemory; | 22 using base::SharedMemory; |
| 23 using base::SharedMemoryHandle; | 23 using base::SharedMemoryHandle; |
| 24 using ppapi::proxy::PluginGlobals; | 24 using ppapi::proxy::PluginGlobals; |
| 25 using ppapi::proxy::PluginResourceTracker; | 25 using ppapi::proxy::PluginResourceTracker; |
| 26 | 26 |
| 27 namespace ppapi { | 27 namespace ppapi { |
| 28 | 28 |
| 29 PluginArrayBufferVar::PluginArrayBufferVar(uint32 size_in_bytes) | 29 PluginArrayBufferVar::PluginArrayBufferVar(uint32_t size_in_bytes) |
| 30 : buffer_(size_in_bytes), | 30 : buffer_(size_in_bytes), |
| 31 plugin_handle_(base::SharedMemory::NULLHandle()), | 31 plugin_handle_(base::SharedMemory::NULLHandle()), |
| 32 size_in_bytes_(size_in_bytes) { | 32 size_in_bytes_(size_in_bytes) {} |
| 33 } | |
| 34 | 33 |
| 35 PluginArrayBufferVar::PluginArrayBufferVar(uint32 size_in_bytes, | 34 PluginArrayBufferVar::PluginArrayBufferVar(uint32_t size_in_bytes, |
| 36 SharedMemoryHandle plugin_handle) | 35 SharedMemoryHandle plugin_handle) |
| 37 : plugin_handle_(plugin_handle), | 36 : plugin_handle_(plugin_handle), size_in_bytes_(size_in_bytes) {} |
| 38 size_in_bytes_(size_in_bytes) { | |
| 39 } | |
| 40 | 37 |
| 41 PluginArrayBufferVar::~PluginArrayBufferVar() { | 38 PluginArrayBufferVar::~PluginArrayBufferVar() { |
| 42 Unmap(); | 39 Unmap(); |
| 43 | 40 |
| 44 if (shmem_.get() == NULL) { | 41 if (shmem_.get() == NULL) { |
| 45 // The SharedMemory destuctor can't close the handle for us. | 42 // The SharedMemory destuctor can't close the handle for us. |
| 46 if (SharedMemory::IsHandleValid(plugin_handle_)) | 43 if (SharedMemory::IsHandleValid(plugin_handle_)) |
| 47 SharedMemory::CloseHandle(plugin_handle_); | 44 SharedMemory::CloseHandle(plugin_handle_); |
| 48 } else { | 45 } else { |
| 49 // Delete SharedMemory, if we have one. | 46 // Delete SharedMemory, if we have one. |
| (...skipping 15 matching lines...) Expand all Loading... |
| 65 if (buffer_.empty()) | 62 if (buffer_.empty()) |
| 66 return NULL; | 63 return NULL; |
| 67 return &(buffer_[0]); | 64 return &(buffer_[0]); |
| 68 } | 65 } |
| 69 | 66 |
| 70 void PluginArrayBufferVar::Unmap() { | 67 void PluginArrayBufferVar::Unmap() { |
| 71 if (shmem_.get()) | 68 if (shmem_.get()) |
| 72 shmem_->Unmap(); | 69 shmem_->Unmap(); |
| 73 } | 70 } |
| 74 | 71 |
| 75 uint32 PluginArrayBufferVar::ByteLength() { | 72 uint32_t PluginArrayBufferVar::ByteLength() { |
| 76 return size_in_bytes_; | 73 return size_in_bytes_; |
| 77 } | 74 } |
| 78 | 75 |
| 79 bool PluginArrayBufferVar::CopyToNewShmem( | 76 bool PluginArrayBufferVar::CopyToNewShmem( |
| 80 PP_Instance instance, | 77 PP_Instance instance, |
| 81 int* host_handle_id, | 78 int* host_handle_id, |
| 82 SharedMemoryHandle* plugin_out_handle) { | 79 SharedMemoryHandle* plugin_out_handle) { |
| 83 ppapi::proxy::PluginDispatcher* dispatcher = | 80 ppapi::proxy::PluginDispatcher* dispatcher = |
| 84 ppapi::proxy::PluginDispatcher::GetForInstance(instance); | 81 ppapi::proxy::PluginDispatcher::GetForInstance(instance); |
| 85 if (!dispatcher) | 82 if (!dispatcher) |
| (...skipping 15 matching lines...) Expand all Loading... |
| 101 | 98 |
| 102 // We don't need to keep the shared memory around on the plugin side; | 99 // We don't need to keep the shared memory around on the plugin side; |
| 103 // we've already copied all our data into it. We'll make it invalid | 100 // we've already copied all our data into it. We'll make it invalid |
| 104 // just to be safe. | 101 // just to be safe. |
| 105 *plugin_out_handle = base::SharedMemory::NULLHandle(); | 102 *plugin_out_handle = base::SharedMemory::NULLHandle(); |
| 106 | 103 |
| 107 return true; | 104 return true; |
| 108 } | 105 } |
| 109 | 106 |
| 110 } // namespace ppapi | 107 } // namespace ppapi |
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