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Side by Side Diff: mojo/edk/embedder/platform_channel_utils_posix.h

Issue 1350023003: Add a Mojo EDK for Chrome that uses one OS pipe per message pipe. (Closed) Base URL: https://chromium.googlesource.com/chromium/src.git@master
Patch Set: more cleanup Created 5 years, 2 months ago
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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 #ifndef THIRD_PARTY_MOJO_SRC_MOJO_EDK_EMBEDDER_PLATFORM_CHANNEL_UTILS_POSIX_H_ 5 #ifndef MOJO_EDK_EMBEDDER_PLATFORM_CHANNEL_UTILS_POSIX_H_
6 #define THIRD_PARTY_MOJO_SRC_MOJO_EDK_EMBEDDER_PLATFORM_CHANNEL_UTILS_POSIX_H_ 6 #define MOJO_EDK_EMBEDDER_PLATFORM_CHANNEL_UTILS_POSIX_H_
7 7
8 #include <stddef.h> 8 #include <stddef.h>
9 #include <sys/types.h> // For |ssize_t|. 9 #include <sys/types.h> // For |ssize_t|.
10 10
11 #include <deque> 11 #include <deque>
12 12
13 #include "base/memory/scoped_ptr.h" 13 #include "base/memory/scoped_ptr.h"
14 #include "third_party/mojo/src/mojo/edk/embedder/platform_handle.h" 14 #include "mojo/edk/embedder/platform_handle.h"
15 #include "third_party/mojo/src/mojo/edk/system/system_impl_export.h" 15 #include "mojo/edk/system/system_impl_export.h"
16 16
17 struct iovec; // Declared in <sys/uio.h>. 17 struct iovec; // Declared in <sys/uio.h>.
18 18
19 namespace mojo { 19 namespace mojo {
20 namespace embedder { 20 namespace edk {
21 21
22 // The maximum number of handles that can be sent "at once" using 22 // The maximum number of handles that can be sent "at once" using
23 // |PlatformChannelSendmsgWithHandles()|. 23 // |PlatformChannelSendmsgWithHandles()|.
24 // TODO(vtl): This number is taken from ipc/ipc_message_attachment_set.h: 24 // TODO(vtl): This number is taken from ipc/ipc_message_attachment_set.h:
25 // |IPC::MessageAttachmentSet::kMaxDescriptorsPerMessage|. 25 // |IPC::MessageAttachmentSet::kMaxDescriptorsPerMessage|.
26 const size_t kPlatformChannelMaxNumHandles = 128; 26 const size_t kPlatformChannelMaxNumHandles = 128;
27 27
28 // Use these to write to a socket created using |PlatformChannelPair| (or 28 // Use these to write to a socket created using |PlatformChannelPair| (or
29 // equivalent). These are like |write()| and |writev()|, but handle |EINTR| and 29 // equivalent). These are like |write()| and |writev()|, but handle |EINTR| and
30 // never raise |SIGPIPE|. (Note: On Mac, the suppression of |SIGPIPE| is set up 30 // never raise |SIGPIPE|. (Note: On Mac, the suppression of |SIGPIPE| is set up
(...skipping 32 matching lines...) Expand 10 before | Expand all | Expand 10 after
63 63
64 // Wrapper around |recvmsg()|, which will extract any attached file descriptors 64 // Wrapper around |recvmsg()|, which will extract any attached file descriptors
65 // (in the control message) to |PlatformHandle|s (and append them to 65 // (in the control message) to |PlatformHandle|s (and append them to
66 // |platform_handles|). (This also handles |EINTR|.) 66 // |platform_handles|). (This also handles |EINTR|.)
67 MOJO_SYSTEM_IMPL_EXPORT ssize_t 67 MOJO_SYSTEM_IMPL_EXPORT ssize_t
68 PlatformChannelRecvmsg(PlatformHandle h, 68 PlatformChannelRecvmsg(PlatformHandle h,
69 void* buf, 69 void* buf,
70 size_t num_bytes, 70 size_t num_bytes,
71 std::deque<PlatformHandle>* platform_handles); 71 std::deque<PlatformHandle>* platform_handles);
72 72
73 } // namespace embedder 73 } // namespace edk
74 } // namespace mojo 74 } // namespace mojo
75 75
76 #endif // THIRD_PARTY_MOJO_SRC_MOJO_EDK_EMBEDDER_PLATFORM_CHANNEL_UTILS_POSIX_H _ 76 #endif // MOJO_EDK_EMBEDDER_PLATFORM_CHANNEL_UTILS_POSIX_H_
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