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
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
|
#region Copyright notice and license
// Copyright 2015, Google Inc.
// All rights reserved.
//
// Redistribution and use in source and binary forms, with or without
// modification, are permitted provided that the following conditions are
// met:
//
// * Redistributions of source code must retain the above copyright
// notice, this list of conditions and the following disclaimer.
// * Redistributions in binary form must reproduce the above
// copyright notice, this list of conditions and the following disclaimer
// in the documentation and/or other materials provided with the
// distribution.
// * Neither the name of Google Inc. nor the names of its
// contributors may be used to endorse or promote products derived from
// this software without specific prior written permission.
//
// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
#endregion
using System;
using System.Collections.Concurrent;
using System.Diagnostics;
using System.Runtime.InteropServices;
using Grpc.Core.Utils;
namespace Grpc.Core.Internal
{
// TODO: we need to make sure that the delegates are not collected before invoked.
internal delegate void ServerShutdownCallbackDelegate(IntPtr eventPtr);
/// <summary>
/// grpc_server from grpc/grpc.h
/// </summary>
internal sealed class ServerSafeHandle : SafeHandleZeroIsInvalid
{
[DllImport("grpc_csharp_ext.dll")]
static extern GRPCCallError grpcsharp_server_request_call(ServerSafeHandle server, CompletionQueueSafeHandle cq, [MarshalAs(UnmanagedType.FunctionPtr)] CompletionCallbackDelegate callback);
[DllImport("grpc_csharp_ext.dll")]
static extern ServerSafeHandle grpcsharp_server_create(CompletionQueueSafeHandle cq, IntPtr args);
[DllImport("grpc_csharp_ext.dll")]
static extern int grpcsharp_server_add_http2_port(ServerSafeHandle server, string addr);
[DllImport("grpc_csharp_ext.dll")]
static extern int grpcsharp_server_add_secure_http2_port(ServerSafeHandle server, string addr, ServerCredentialsSafeHandle creds);
[DllImport("grpc_csharp_ext.dll")]
static extern void grpcsharp_server_start(ServerSafeHandle server);
[DllImport("grpc_csharp_ext.dll")]
static extern void grpcsharp_server_shutdown(ServerSafeHandle server);
// TODO: get rid of the old callback style
[DllImport("grpc_csharp_ext.dll", EntryPoint = "grpcsharp_server_shutdown_and_notify")]
static extern void grpcsharp_server_shutdown_and_notify_CALLBACK(ServerSafeHandle server, [MarshalAs(UnmanagedType.FunctionPtr)] ServerShutdownCallbackDelegate callback);
[DllImport("grpc_csharp_ext.dll")]
static extern void grpcsharp_server_destroy(IntPtr server);
private ServerSafeHandle()
{
}
public static ServerSafeHandle NewServer(CompletionQueueSafeHandle cq, IntPtr args)
{
return grpcsharp_server_create(cq, args);
}
public int AddListeningPort(string addr)
{
return grpcsharp_server_add_http2_port(this, addr);
}
public int AddListeningPort(string addr, ServerCredentialsSafeHandle credentials)
{
return grpcsharp_server_add_secure_http2_port(this, addr, credentials);
}
public void Start()
{
grpcsharp_server_start(this);
}
public void Shutdown()
{
grpcsharp_server_shutdown(this);
}
public void ShutdownAndNotify(ServerShutdownCallbackDelegate callback)
{
grpcsharp_server_shutdown_and_notify_CALLBACK(this, callback);
}
public void RequestCall(CompletionQueueSafeHandle cq, CompletionCallbackDelegate callback)
{
AssertCallOk(grpcsharp_server_request_call(this, cq, callback));
}
protected override bool ReleaseHandle()
{
grpcsharp_server_destroy(handle);
return true;
}
private static void AssertCallOk(GRPCCallError callError)
{
Preconditions.CheckState(callError == GRPCCallError.GRPC_CALL_OK, "Status not GRPC_CALL_OK");
}
}
}
|
