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cbbe90dd JB |
1 | #pragma once |
2 | /* | |
3 | * This file is part of the libCEC(R) library. | |
4 | * | |
5 | * libCEC(R) is Copyright (C) 2011-2013 Pulse-Eight Limited. All rights reserved. | |
6 | * libCEC(R) is an original work, containing original code. | |
7 | * | |
8 | * libCEC(R) is a trademark of Pulse-Eight Limited. | |
9 | * | |
10 | * This program is dual-licensed; you can redistribute it and/or modify | |
11 | * it under the terms of the GNU General Public License as published by | |
12 | * the Free Software Foundation; either version 2 of the License, or | |
13 | * (at your option) any later version. | |
14 | * | |
15 | * This program is distributed in the hope that it will be useful, | |
16 | * but WITHOUT ANY WARRANTY; without even the implied warranty of | |
17 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
18 | * GNU General Public License for more details. | |
19 | * | |
20 | * You should have received a copy of the GNU General Public License | |
21 | * along with this program; if not, write to the Free Software | |
22 | * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. | |
23 | * | |
24 | * | |
25 | * Alternatively, you can license this library under a commercial license, | |
26 | * please contact Pulse-Eight Licensing for more information. | |
27 | * | |
28 | * For more information contact: | |
29 | * Pulse-Eight Licensing <license@pulse-eight.com> | |
30 | * http://www.pulse-eight.com/ | |
31 | * http://www.pulse-eight.net/ | |
32 | */ | |
33 | ||
34 | #include "lib/platform/threads/mutex.h" | |
35 | ||
36 | #if defined(__WINDOWS__) | |
37 | #include "lib/platform/windows/os-socket.h" | |
38 | #else | |
39 | #include "lib/platform/posix/os-socket.h" | |
40 | #endif | |
41 | ||
42 | #include <string> | |
43 | ||
44 | // Common socket operations | |
45 | ||
46 | namespace PLATFORM | |
47 | { | |
48 | class ISocket : public PreventCopy | |
49 | { | |
50 | public: | |
51 | ISocket(void) {}; | |
52 | virtual ~ISocket(void) {} | |
53 | ||
54 | virtual bool Open(uint64_t iTimeoutMs = 0) = 0; | |
55 | virtual void Close(void) = 0; | |
56 | virtual void Shutdown(void) = 0; | |
57 | virtual bool IsOpen(void) = 0; | |
58 | virtual ssize_t Write(void* data, size_t len) = 0; | |
59 | virtual ssize_t Read(void* data, size_t len, uint64_t iTimeoutMs = 0) = 0; | |
60 | virtual std::string GetError(void) = 0; | |
61 | virtual int GetErrorNumber(void) = 0; | |
62 | virtual std::string GetName(void) = 0; | |
63 | }; | |
64 | ||
65 | template <typename _SType> | |
66 | class CCommonSocket : public ISocket | |
67 | { | |
68 | public: | |
69 | CCommonSocket(_SType initialSocketValue, const std::string &strName) : | |
70 | m_socket(initialSocketValue), | |
71 | m_strName(strName), | |
72 | m_iError(0) {} | |
73 | ||
74 | virtual ~CCommonSocket(void) {} | |
75 | ||
76 | virtual std::string GetError(void) | |
77 | { | |
78 | std::string strError; | |
79 | strError = m_strError.empty() && m_iError != 0 ? strerror(m_iError) : m_strError; | |
80 | return strError; | |
81 | } | |
82 | ||
83 | virtual int GetErrorNumber(void) | |
84 | { | |
85 | return m_iError; | |
86 | } | |
87 | ||
88 | virtual std::string GetName(void) | |
89 | { | |
90 | std::string strName; | |
91 | strName = m_strName; | |
92 | return strName; | |
93 | } | |
94 | ||
95 | protected: | |
96 | _SType m_socket; | |
97 | std::string m_strError; | |
98 | std::string m_strName; | |
99 | int m_iError; | |
100 | CMutex m_mutex; | |
101 | }; | |
102 | ||
103 | template <typename _Socket> | |
104 | class CProtectedSocket : public ISocket | |
105 | { | |
106 | public: | |
107 | CProtectedSocket(_Socket *socket) : | |
108 | m_socket(socket), | |
109 | m_bIsIdle(true) {} | |
110 | ||
111 | virtual ~CProtectedSocket(void) | |
112 | { | |
113 | Close(); | |
114 | delete m_socket; | |
115 | } | |
116 | ||
117 | virtual bool Open(uint64_t iTimeoutMs = 0) | |
118 | { | |
119 | bool bReturn(false); | |
120 | if (m_socket && WaitReady()) | |
121 | { | |
122 | bReturn = m_socket->Open(iTimeoutMs); | |
123 | MarkReady(); | |
124 | } | |
125 | return bReturn; | |
126 | } | |
127 | ||
128 | virtual void Close(void) | |
129 | { | |
130 | if (m_socket && WaitReady()) | |
131 | { | |
132 | m_socket->Close(); | |
133 | MarkReady(); | |
134 | } | |
135 | } | |
136 | ||
137 | virtual void Shutdown(void) | |
138 | { | |
139 | if (m_socket && WaitReady()) | |
140 | { | |
141 | m_socket->Shutdown(); | |
142 | MarkReady(); | |
143 | } | |
144 | } | |
145 | ||
146 | virtual bool IsOpen(void) | |
147 | { | |
148 | CLockObject lock(m_mutex); | |
149 | return m_socket && m_socket->IsOpen(); | |
150 | } | |
151 | ||
152 | virtual bool IsBusy(void) | |
153 | { | |
154 | CLockObject lock(m_mutex); | |
155 | return m_socket && !m_bIsIdle; | |
156 | } | |
157 | ||
158 | virtual bool IsIdle(void) | |
159 | { | |
160 | CLockObject lock(m_mutex); | |
161 | return m_socket && m_bIsIdle; | |
162 | } | |
163 | ||
164 | virtual ssize_t Write(void* data, size_t len) | |
165 | { | |
166 | if (!m_socket || !WaitReady()) | |
167 | return -EINVAL; | |
168 | ||
169 | ssize_t iReturn = m_socket->Write(data, len); | |
170 | MarkReady(); | |
171 | ||
172 | return iReturn; | |
173 | } | |
174 | ||
175 | virtual ssize_t Read(void* data, size_t len, uint64_t iTimeoutMs = 0) | |
176 | { | |
177 | if (!m_socket || !WaitReady()) | |
178 | return -EINVAL; | |
179 | ||
180 | ssize_t iReturn = m_socket->Read(data, len, iTimeoutMs); | |
181 | MarkReady(); | |
182 | ||
183 | return iReturn; | |
184 | } | |
185 | ||
186 | virtual std::string GetError(void) | |
187 | { | |
188 | std::string strError; | |
189 | CLockObject lock(m_mutex); | |
190 | strError = m_socket ? m_socket->GetError() : ""; | |
191 | return strError; | |
192 | } | |
193 | ||
194 | virtual int GetErrorNumber(void) | |
195 | { | |
196 | CLockObject lock(m_mutex); | |
197 | return m_socket ? m_socket->GetErrorNumber() : -EINVAL; | |
198 | } | |
199 | ||
200 | virtual std::string GetName(void) | |
201 | { | |
202 | std::string strName; | |
203 | CLockObject lock(m_mutex); | |
204 | strName = m_socket ? m_socket->GetName() : ""; | |
205 | return strName; | |
206 | } | |
207 | ||
208 | private: | |
209 | bool WaitReady(void) | |
210 | { | |
211 | CLockObject lock(m_mutex); | |
212 | m_condition.Wait(m_mutex, m_bIsIdle); | |
213 | m_bIsIdle = false; | |
214 | return true; | |
215 | } | |
216 | ||
217 | void MarkReady(void) | |
218 | { | |
219 | CLockObject lock(m_mutex); | |
220 | m_bIsIdle = true; | |
221 | m_condition.Signal(); | |
222 | } | |
223 | ||
224 | _Socket * m_socket; | |
225 | CMutex m_mutex; | |
226 | CCondition<bool> m_condition; | |
227 | bool m_bIsIdle; | |
228 | }; | |
229 | }; |