third_party/WebKit/Source/core/mojo/Mojo.h - Issue 2400563002: Adds Mojo IDL.

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Issue 2400563002: Adds Mojo IDL. (Closed)

Patch Set: implements messagepipe Created 4 years, 2 months ago

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	1 // Copyright 2016 The Chromium Authors. All rights reserved.

	2 // Use of this source code is governed by a BSD-style license that can be

	3 // found in the LICENSE file.

	4

	5 #ifndef Mojo_h

	6 #define Mojo_h

	7

	8 #include "bindings/core/v8/ScriptWrappable.h"

	9 #include "core/mojo/MojoHandleWatcher.h"

	10

	11 namespace blink {

	12

	13 class DOMArrayBuffer;

	14 class MojoCreateMessagePipeOptions;

	15 class MojoCreateMessagePipeResult;

	16 class MojoHandle;

	17 class MojoMessagePipeHandle;

	18 class MojoReadMessageResult;

	19 class MojoWatchCallback;

	20 class ScriptState;

	21

	22 class Mojo final : public GarbageCollectedFinalized<Mojo>,

	23 public ScriptWrappable {

	24 DEFINE_WRAPPERTYPEINFO();

	25

	26 public:

	27 CORE_EXPORT static Mojo* create();

	28 virtual ~Mojo();

	29

	30 // MojoResult

	31 static const MojoResult kResultOk = MOJO_HANDLE_SIGNAL_NONE;

	32 static const MojoResult kResultCancelled = MOJO_RESULT_CANCELLED;

	33 static const MojoResult kResultUnknown = MOJO_RESULT_UNKNOWN;

	34 static const MojoResult kResultInvalidArgument = MOJO_RESULT_INVALID_ARGUMENT;

	35 static const MojoResult kResultDeadlineExceeded =

	36 MOJO_RESULT_DEADLINE_EXCEEDED;

	37 static const MojoResult kResultNotFound = MOJO_RESULT_NOT_FOUND;

	38 static const MojoResult kResultAlreadyExists = MOJO_RESULT_ALREADY_EXISTS;

	39 static const MojoResult kResultPermissionDenied =

	40 MOJO_RESULT_PERMISSION_DENIED;

	41 static const MojoResult kResultResourceExhausted =

	42 MOJO_RESULT_RESOURCE_EXHAUSTED;

	43 static const MojoResult kResultFailedPrecondition =

	44 MOJO_RESULT_FAILED_PRECONDITION;

	45 static const MojoResult kResultAborted = MOJO_RESULT_ABORTED;

	46 static const MojoResult kResultOutOfRange = MOJO_RESULT_OUT_OF_RANGE;

	47 static const MojoResult kResultUnimplemented = MOJO_RESULT_UNIMPLEMENTED;

	48 static const MojoResult kResultInternal = MOJO_RESULT_INTERNAL;

	49 static const MojoResult kResultUnavailable = MOJO_RESULT_UNAVAILABLE;

	50 static const MojoResult kResultDataLoss = MOJO_RESULT_DATA_LOSS;

	51 static const MojoResult kResultBusy = MOJO_RESULT_BUSY;

	52 static const MojoResult kResultShouldWait = MOJO_RESULT_SHOULD_WAIT;

	53

	54 // MojoHandleSignals

	55 static const MojoHandleSignals kHandleSignalNone = MOJO_HANDLE_SIGNAL_NONE;

	56 static const MojoHandleSignals kHandleSignalReadable =

	57 MOJO_HANDLE_SIGNAL_READABLE;

	58 static const MojoHandleSignals kHandleSignalWritable =

	59 MOJO_HANDLE_SIGNAL_WRITABLE;

	60 static const MojoHandleSignals kHandleSignalPeerClosed =

	61 MOJO_HANDLE_SIGNAL_PEER_CLOSED;

	62

	63 // MessagePipe flags.

	64 static const MojoCreateMessagePipeOptionsFlags

	65 kCreateMessagePipeOptionsFlagNone =

	66 MOJO_CREATE_MESSAGE_PIPE_OPTIONS_FLAG_NONE;

	67 static const MojoWriteMessageFlags kWriteMessageFlagNone =

	68 MOJO_WRITE_MESSAGE_FLAG_NONE;

	69 static const MojoReadMessageFlags kReadMessageFlagNone =

	70 MOJO_READ_MESSAGE_FLAG_NONE;

	71 static const MojoReadMessageFlags kReadMessageFlagMayDiscard =

	72 MOJO_READ_MESSAGE_FLAG_MAY_DISCARD;

	73

	74 unsigned watch(ScriptState*,

	75 MojoHandle*,

	76 MojoHandleSignals,

	77 MojoWatchCallback*);

	78 void cancelWatch(unsigned watchId);

	79

	80 void createMessagePipe(const MojoCreateMessagePipeOptions&,

	81 MojoCreateMessagePipeResult&);

	82 MojoResult writeMessage(MojoMessagePipeHandle*,

	83 DOMArrayBuffer*,

	84 const HeapVector<Member<MojoHandle>>&,

	85 MojoWriteMessageFlags);

	86 void readMessage(MojoMessagePipeHandle*,

	87 MojoReadMessageFlags,

	88 MojoReadMessageResult&);

	89

	90 DECLARE_TRACE();

	91

	92 private:

	93 class WatchEntry : public GarbageCollectedFinalized<WatchEntry> {

	94 public:

	95 WatchEntry(WebTaskRunner* taskRunner) : m_watcher(taskRunner) {}

	96 DECLARE_TRACE();

	97

	98 private:

	99 friend class Mojo;

	100 MojoHandleWatcher m_watcher;

	101 RefPtr<ScriptState> m_scriptState;

	102 Member<MojoWatchCallback> m_callback;

	103 };

	104 using WatchMap = HeapHashMap<unsigned, Member<WatchEntry>>;

	105

	106 Mojo(std::unique_ptr<WebTaskRunner>);

	107 void watchCallback(unsigned, MojoResult);

	108

	109 std::unique_ptr<WebTaskRunner> m_taskRunner;

	110 unsigned m_nextWatchId;

	111 WatchMap m_watchMap;

	112 };

	113

	114 } // namespace blink

	115

	116 #endif // Mojo_h

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