1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
|
/*
*
* Copyright 2018 gRPC authors.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*
*/
#ifndef GRPC_CORE_LIB_IOMGR_TCP_CFSTREAM_SYNC_H
#define GRPC_CORE_LIB_IOMGR_TCP_CFSTREAM_SYNC_H
#include <grpc/support/port_platform.h>
#include "src/core/lib/iomgr/port.h"
#ifdef GRPC_CFSTREAM
#import <Foundation/Foundation.h>
#include "src/core/lib/iomgr/closure.h"
#include "src/core/lib/iomgr/lockfree_event.h"
class CFStreamSync final {
public:
static CFStreamSync* CreateStreamSync(CFReadStreamRef read_stream,
CFWriteStreamRef write_stream);
~CFStreamSync() {}
CFStreamSync(const CFReadStreamRef& ref) = delete;
CFStreamSync(CFReadStreamRef&& ref) = delete;
CFStreamSync& operator=(const CFStreamSync& rhs) = delete;
void NotifyOnOpen(grpc_closure* closure);
void NotifyOnRead(grpc_closure* closure);
void NotifyOnWrite(grpc_closure* closure);
void Shutdown(grpc_error* error);
void Ref(const char* file = nullptr, int line = 0,
const char* reason = nullptr);
void Unref(const char* file = nullptr, int line = 0,
const char* reason = nullptr);
private:
CFStreamSync(CFReadStreamRef read_stream, CFWriteStreamRef write_stream);
static void ReadCallback(CFReadStreamRef stream, CFStreamEventType type,
void* client_callback_info);
static void WriteCallback(CFWriteStreamRef stream, CFStreamEventType type,
void* client_callback_info);
static void* Retain(void* info);
static void Release(void* info);
grpc_core::LockfreeEvent open_event_;
grpc_core::LockfreeEvent read_event_;
grpc_core::LockfreeEvent write_event_;
gpr_refcount refcount_;
};
#ifndef NDEBUG
#define CFSTREAM_SYNC_REF(sync, reason) \
(sync)->Ref(__FILE__, __LINE__, (reason))
#define CFSTREAM_SYNC_UNREF(sync, reason) \
(sync)->Unref(__FILE__, __LINE__, (reason))
#else
#define CFSTREAM_SYNC_REF(sync, reason) (sync)->Ref()
#define CFSTREAM_SYNC_UNREF(sync, reason) (sync)->Unref()
#endif
#endif
#endif /* GRPC_CORE_LIB_IOMGR_TCP_CFSTREAM_SYNC_H */
|
