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1 : /* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
2 : /*
3 : * This file is part of the LibreOffice project.
4 : *
5 : * This Source Code Form is subject to the terms of the Mozilla Public
6 : * License, v. 2.0. If a copy of the MPL was not distributed with this
7 : * file, You can obtain one at http://mozilla.org/MPL/2.0/.
8 : *
9 : * This file incorporates work covered by the following license notice:
10 : *
11 : * Licensed to the Apache Software Foundation (ASF) under one or more
12 : * contributor license agreements. See the NOTICE file distributed
13 : * with this work for additional information regarding copyright
14 : * ownership. The ASF licenses this file to you under the Apache
15 : * License, Version 2.0 (the "License"); you may not use this file
16 : * except in compliance with the License. You may obtain a copy of
17 : * the License at http://www.apache.org/licenses/LICENSE-2.0 .
18 : */
19 :
20 : #include "maildispatcher.hxx"
21 : #include "imaildsplistener.hxx"
22 :
23 : #include <algorithm>
24 :
25 : using namespace ::com::sun::star;
26 : using ::rtl::OUString;
27 :
28 : typedef std::list< ::rtl::Reference<IMailDispatcherListener> > MailDispatcherListenerContainer_t;
29 :
30 : namespace /* private */
31 : {
32 : /* Generic event notifier for started,
33 : stopped, and idle events which are
34 : very similary */
35 0 : class GenericEventNotifier
36 : {
37 : public:
38 : // pointer to virtual function typedef
39 : typedef void (IMailDispatcherListener::*GenericNotificationFunc_t)(::rtl::Reference<MailDispatcher>);
40 :
41 0 : GenericEventNotifier(
42 : GenericNotificationFunc_t notification_function,
43 : ::rtl::Reference<MailDispatcher> mail_dispatcher) :
44 : notification_function_(notification_function),
45 0 : mail_dispatcher_(mail_dispatcher)
46 0 : {}
47 :
48 0 : void operator() (::rtl::Reference<IMailDispatcherListener> listener) const
49 0 : { (listener.get()->*notification_function_)(mail_dispatcher_); }
50 :
51 : private:
52 : GenericNotificationFunc_t notification_function_;
53 : ::rtl::Reference<MailDispatcher> mail_dispatcher_;
54 : };
55 :
56 0 : class MailDeliveryNotifier
57 : {
58 : public:
59 0 : MailDeliveryNotifier(::rtl::Reference<MailDispatcher> xMailDispatcher, uno::Reference<mail::XMailMessage> message) :
60 : mail_dispatcher_(xMailDispatcher),
61 0 : message_(message)
62 0 : {}
63 :
64 0 : void operator() (::rtl::Reference<IMailDispatcherListener> listener) const
65 0 : { listener->mailDelivered(mail_dispatcher_, message_); }
66 :
67 : private:
68 : ::rtl::Reference<MailDispatcher> mail_dispatcher_;
69 : uno::Reference<mail::XMailMessage> message_;
70 : };
71 :
72 0 : class MailDeliveryErrorNotifier
73 : {
74 : public:
75 0 : MailDeliveryErrorNotifier(
76 : ::rtl::Reference<MailDispatcher> xMailDispatcher,
77 : uno::Reference<mail::XMailMessage> message,
78 : const ::rtl::OUString& error_message) :
79 : mail_dispatcher_(xMailDispatcher),
80 : message_(message),
81 0 : error_message_(error_message)
82 0 : {}
83 :
84 0 : void operator() (::rtl::Reference<IMailDispatcherListener> listener) const
85 0 : { listener->mailDeliveryError(mail_dispatcher_, message_, error_message_); }
86 :
87 : private:
88 : ::rtl::Reference<MailDispatcher> mail_dispatcher_;
89 : uno::Reference<mail::XMailMessage> message_;
90 : ::rtl::OUString error_message_;
91 : };
92 :
93 : } // namespace private
94 :
95 0 : MailDispatcher::MailDispatcher(uno::Reference<mail::XSmtpService> mailserver) :
96 : mailserver_ (mailserver),
97 : run_(false),
98 0 : shutdown_requested_(false)
99 : {
100 0 : wakening_call_.reset();
101 0 : mail_dispatcher_active_.reset();
102 :
103 0 : if (!create())
104 0 : throw uno::RuntimeException();
105 :
106 : // wait until the mail dispatcher thread is really alive
107 : // and has aquired a reference to this instance of the
108 : // class
109 0 : mail_dispatcher_active_.wait();
110 0 : }
111 :
112 0 : MailDispatcher::~MailDispatcher()
113 : {
114 0 : }
115 :
116 0 : void MailDispatcher::enqueueMailMessage(uno::Reference<mail::XMailMessage> message)
117 : {
118 0 : ::osl::MutexGuard thread_status_guard(thread_status_mutex_);
119 0 : ::osl::MutexGuard message_container_guard(message_container_mutex_);
120 :
121 : OSL_PRECOND(!shutdown_requested_, "MailDispatcher thread is shuting down already");
122 :
123 0 : messages_.push_back(message);
124 0 : if (run_)
125 0 : wakening_call_.set();
126 0 : }
127 :
128 0 : uno::Reference<mail::XMailMessage> MailDispatcher::dequeueMailMessage()
129 : {
130 0 : ::osl::MutexGuard guard(message_container_mutex_);
131 0 : uno::Reference<mail::XMailMessage> message;
132 0 : if(!messages_.empty())
133 : {
134 0 : message = messages_.front();
135 0 : messages_.pop_front();
136 : }
137 0 : return message;
138 : }
139 :
140 0 : void MailDispatcher::start()
141 : {
142 : OSL_PRECOND(!isStarted(), "MailDispatcher is already started!");
143 :
144 0 : ::osl::ClearableMutexGuard thread_status_guard(thread_status_mutex_);
145 :
146 : OSL_PRECOND(!shutdown_requested_, "MailDispatcher thread is shuting down already");
147 :
148 0 : if (!shutdown_requested_)
149 : {
150 0 : run_ = true;
151 0 : wakening_call_.set();
152 0 : thread_status_guard.clear();
153 :
154 0 : MailDispatcherListenerContainer_t listeners_cloned(cloneListener());
155 0 : std::for_each(listeners_cloned.begin(), listeners_cloned.end(), GenericEventNotifier(&IMailDispatcherListener::started, this));
156 0 : }
157 0 : }
158 :
159 0 : void MailDispatcher::stop()
160 : {
161 : OSL_PRECOND(isStarted(), "MailDispatcher not started!");
162 :
163 0 : ::osl::ClearableMutexGuard thread_status_guard(thread_status_mutex_);
164 :
165 : OSL_PRECOND(!shutdown_requested_, "MailDispatcher thread is shuting down already");
166 :
167 0 : if (!shutdown_requested_)
168 : {
169 0 : run_ = false;
170 0 : wakening_call_.reset();
171 0 : thread_status_guard.clear();
172 :
173 0 : MailDispatcherListenerContainer_t listeners_cloned(cloneListener());
174 0 : std::for_each(listeners_cloned.begin(), listeners_cloned.end(), GenericEventNotifier(&IMailDispatcherListener::stopped, this));
175 0 : }
176 0 : }
177 :
178 0 : void MailDispatcher::shutdown()
179 : {
180 0 : ::osl::MutexGuard thread_status_guard(thread_status_mutex_);
181 :
182 : OSL_PRECOND(!shutdown_requested_, "MailDispatcher thread is shuting down already");
183 :
184 0 : shutdown_requested_ = true;
185 0 : wakening_call_.set();
186 0 : }
187 :
188 0 : bool MailDispatcher::isStarted() const
189 : {
190 0 : return run_;
191 : }
192 :
193 0 : void MailDispatcher::addListener(::rtl::Reference<IMailDispatcherListener> listener)
194 : {
195 : OSL_PRECOND(!shutdown_requested_, "MailDispatcher thread is shuting down already");
196 :
197 0 : ::osl::MutexGuard guard(listener_container_mutex_);
198 0 : listeners_.push_back(listener);
199 0 : }
200 :
201 0 : std::list< ::rtl::Reference<IMailDispatcherListener> > MailDispatcher::cloneListener()
202 : {
203 0 : ::osl::MutexGuard guard(listener_container_mutex_);
204 0 : return listeners_;
205 : }
206 :
207 0 : void MailDispatcher::sendMailMessageNotifyListener(uno::Reference<mail::XMailMessage> message)
208 : {
209 : try
210 : {
211 0 : mailserver_->sendMailMessage(message);
212 0 : MailDispatcherListenerContainer_t listeners_cloned(cloneListener());
213 0 : std::for_each(listeners_cloned.begin(), listeners_cloned.end(), MailDeliveryNotifier(this, message));
214 : }
215 0 : catch (const mail::MailException& ex)
216 : {
217 0 : MailDispatcherListenerContainer_t listeners_cloned(cloneListener());
218 0 : std::for_each(listeners_cloned.begin(), listeners_cloned.end(), MailDeliveryErrorNotifier(this, message, ex.Message));
219 : }
220 0 : catch (const uno::RuntimeException& ex)
221 : {
222 0 : MailDispatcherListenerContainer_t listeners_cloned(cloneListener());
223 0 : std::for_each(listeners_cloned.begin(), listeners_cloned.end(), MailDeliveryErrorNotifier(this, message, ex.Message));
224 : }
225 0 : }
226 :
227 0 : void MailDispatcher::run()
228 : {
229 : // aquire a self reference in order to avoid race
230 : // conditions. The last client of this class must
231 : // call shutdown before releasing his last reference
232 : // to this class in order to shutdown this thread
233 : // which will release his (the very last reference
234 : // to the class and so force their destruction
235 0 : m_xSelfReference = this;
236 :
237 : // signal that the mail dispatcher thread is now alive
238 0 : mail_dispatcher_active_.set();
239 :
240 0 : for(;;)
241 : {
242 0 : wakening_call_.wait();
243 :
244 0 : ::osl::ClearableMutexGuard thread_status_guard(thread_status_mutex_);
245 0 : if (shutdown_requested_)
246 : break;
247 :
248 0 : ::osl::ClearableMutexGuard message_container_guard(message_container_mutex_);
249 :
250 0 : if (messages_.size())
251 : {
252 0 : thread_status_guard.clear();
253 0 : uno::Reference<mail::XMailMessage> message = messages_.front();
254 0 : messages_.pop_front();
255 0 : message_container_guard.clear();
256 0 : sendMailMessageNotifyListener(message);
257 : }
258 : else // idle - put ourself to sleep
259 : {
260 0 : wakening_call_.reset();
261 0 : message_container_guard.clear();
262 0 : thread_status_guard.clear();
263 0 : MailDispatcherListenerContainer_t listeners_cloned(cloneListener());
264 0 : std::for_each(listeners_cloned.begin(), listeners_cloned.end(), GenericEventNotifier(&IMailDispatcherListener::idle, this));
265 : }
266 0 : } // end for SSH ALI
267 0 : }
268 :
269 0 : void MailDispatcher::onTerminated()
270 : {
271 : //keep the reference until the end of onTerminated() because of the call order in the
272 : //_threadFunc() from osl/thread.hxx
273 0 : m_xSelfReference = 0;
274 0 : }
275 :
276 : /* vim:set shiftwidth=4 softtabstop=4 expandtab: */
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