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1 // Copyright 2015 The Chromium Authors. All rights reserved. | 1 // Copyright 2015 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 "base/logging.h" | 5 #include "base/logging.h" |
6 #include "mojo/edk/embedder/embedder_internal.h" | 6 #include "mojo/edk/embedder/embedder_internal.h" |
7 #include "mojo/edk/system/core.h" | 7 #include "mojo/edk/system/core.h" |
8 #include "mojo/edk/system/dispatcher.h" | 8 #include "mojo/edk/system/dispatcher.h" |
| 9 #include "mojo/edk/system/handle.h" |
9 #include "mojo/edk/util/ref_ptr.h" | 10 #include "mojo/edk/util/ref_ptr.h" |
10 #include "mojo/public/c/system/buffer.h" | 11 #include "mojo/public/c/system/buffer.h" |
11 #include "mojo/public/c/system/data_pipe.h" | 12 #include "mojo/public/c/system/data_pipe.h" |
12 #include "mojo/public/c/system/handle.h" | 13 #include "mojo/public/c/system/handle.h" |
13 #include "mojo/public/c/system/message_pipe.h" | 14 #include "mojo/public/c/system/message_pipe.h" |
14 #include "mojo/public/c/system/result.h" | 15 #include "mojo/public/c/system/result.h" |
15 #include "mojo/public/c/system/time.h" | 16 #include "mojo/public/c/system/time.h" |
16 #include "mojo/public/c/system/wait.h" | 17 #include "mojo/public/c/system/wait.h" |
17 #include "mojo/public/platform/native/system_impl_private.h" | 18 #include "mojo/public/platform/native/system_impl_private.h" |
18 | 19 |
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52 return MOJO_RESULT_INVALID_ARGUMENT; | 53 return MOJO_RESULT_INVALID_ARGUMENT; |
53 | 54 |
54 if (result_handle == nullptr) | 55 if (result_handle == nullptr) |
55 return MOJO_RESULT_INVALID_ARGUMENT; | 56 return MOJO_RESULT_INVALID_ARGUMENT; |
56 | 57 |
57 RefPtr<Dispatcher> d; | 58 RefPtr<Dispatcher> d; |
58 MojoResult result = from_core->GetAndRemoveDispatcher(handle, &d); | 59 MojoResult result = from_core->GetAndRemoveDispatcher(handle, &d); |
59 if (result != MOJO_RESULT_OK) | 60 if (result != MOJO_RESULT_OK) |
60 return result; | 61 return result; |
61 | 62 |
62 MojoHandle created_handle = to_core->AddDispatcher(d.get()); | 63 // TODO(vtl): The rights should come from the original handle (to be dealt |
| 64 // with when I fix/replace |Core::GetAndRemoveDispatcher()|. |
| 65 MojoHandle created_handle = to_core->AddHandle(mojo::system::Handle( |
| 66 d.Clone(), MOJO_HANDLE_RIGHT_TRANSFER | MOJO_HANDLE_RIGHT_READ | |
| 67 MOJO_HANDLE_RIGHT_WRITE)); |
63 if (created_handle == MOJO_HANDLE_INVALID) { | 68 if (created_handle == MOJO_HANDLE_INVALID) { |
64 // The handle has been lost, unfortunately. There's no guarentee we can put | 69 // The handle has been lost, unfortunately. There's no guarentee we can put |
65 // it back where it came from, or get the original ID back. Holding locks | 70 // it back where it came from, or get the original ID back. Holding locks |
66 // for multiple cores risks deadlock, so that isn't a solution. This case | 71 // for multiple cores risks deadlock, so that isn't a solution. This case |
67 // should not happen for reasonable uses of this API, however. | 72 // should not happen for reasonable uses of this API, however. |
68 LOG(ERROR) << "Could not transfer handle"; | 73 LOG(ERROR) << "Could not transfer handle"; |
69 d->Close(); | 74 d->Close(); |
70 return MOJO_RESULT_RESOURCE_EXHAUSTED; | 75 return MOJO_RESULT_RESOURCE_EXHAUSTED; |
71 } | 76 } |
72 | 77 |
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309 MakeUserPointer(buffer), flags); | 314 MakeUserPointer(buffer), flags); |
310 } | 315 } |
311 | 316 |
312 MojoResult MojoSystemImplUnmapBuffer(MojoSystemImpl system, void* buffer) { | 317 MojoResult MojoSystemImplUnmapBuffer(MojoSystemImpl system, void* buffer) { |
313 mojo::system::Core* core = static_cast<mojo::system::Core*>(system); | 318 mojo::system::Core* core = static_cast<mojo::system::Core*>(system); |
314 DCHECK(core); | 319 DCHECK(core); |
315 return core->UnmapBuffer(MakeUserPointer(buffer)); | 320 return core->UnmapBuffer(MakeUserPointer(buffer)); |
316 } | 321 } |
317 | 322 |
318 } // extern "C" | 323 } // extern "C" |
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