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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 :
27 : typedef std::list< ::rtl::Reference<IMailDispatcherListener> > MailDispatcherListenerContainer_t;
28 :
29 : namespace /* private */
30 : {
31 : /* Generic event notifier for started,
32 : stopped, and idle events which are
33 : very similary */
34 0 : class GenericEventNotifier
35 : {
36 : public:
37 : // pointer to virtual function typedef
38 : typedef void (IMailDispatcherListener::*GenericNotificationFunc_t)(::rtl::Reference<MailDispatcher>);
39 :
40 0 : GenericEventNotifier(
41 : GenericNotificationFunc_t notification_function,
42 : ::rtl::Reference<MailDispatcher> mail_dispatcher) :
43 : notification_function_(notification_function),
44 0 : mail_dispatcher_(mail_dispatcher)
45 0 : {}
46 :
47 0 : void operator() (::rtl::Reference<IMailDispatcherListener> listener) const
48 0 : { (listener.get()->*notification_function_)(mail_dispatcher_); }
49 :
50 : private:
51 : GenericNotificationFunc_t notification_function_;
52 : ::rtl::Reference<MailDispatcher> mail_dispatcher_;
53 : };
54 :
55 0 : class MailDeliveryNotifier
56 : {
57 : public:
58 0 : MailDeliveryNotifier(::rtl::Reference<MailDispatcher> xMailDispatcher, uno::Reference<mail::XMailMessage> message) :
59 : mail_dispatcher_(xMailDispatcher),
60 0 : message_(message)
61 0 : {}
62 :
63 0 : void operator() (::rtl::Reference<IMailDispatcherListener> listener) const
64 0 : { listener->mailDelivered(mail_dispatcher_, message_); }
65 :
66 : private:
67 : ::rtl::Reference<MailDispatcher> mail_dispatcher_;
68 : uno::Reference<mail::XMailMessage> message_;
69 : };
70 :
71 0 : class MailDeliveryErrorNotifier
72 : {
73 : public:
74 0 : MailDeliveryErrorNotifier(
75 : ::rtl::Reference<MailDispatcher> xMailDispatcher,
76 : uno::Reference<mail::XMailMessage> message,
77 : const OUString& error_message) :
78 : mail_dispatcher_(xMailDispatcher),
79 : message_(message),
80 0 : error_message_(error_message)
81 0 : {}
82 :
83 0 : void operator() (::rtl::Reference<IMailDispatcherListener> listener) const
84 0 : { listener->mailDeliveryError(mail_dispatcher_, message_, error_message_); }
85 :
86 : private:
87 : ::rtl::Reference<MailDispatcher> mail_dispatcher_;
88 : uno::Reference<mail::XMailMessage> message_;
89 : OUString error_message_;
90 : };
91 :
92 : } // namespace private
93 :
94 0 : MailDispatcher::MailDispatcher(uno::Reference<mail::XSmtpService> mailserver) :
95 : mailserver_ (mailserver),
96 : run_(false),
97 0 : shutdown_requested_(false)
98 : {
99 0 : wakening_call_.reset();
100 0 : mail_dispatcher_active_.reset();
101 :
102 0 : if (!create())
103 0 : throw uno::RuntimeException();
104 :
105 : // wait until the mail dispatcher thread is really alive
106 : // and has acquired a reference to this instance of the
107 : // class
108 0 : mail_dispatcher_active_.wait();
109 0 : }
110 :
111 0 : MailDispatcher::~MailDispatcher()
112 : {
113 0 : }
114 :
115 0 : void MailDispatcher::enqueueMailMessage(uno::Reference<mail::XMailMessage> message)
116 : {
117 0 : ::osl::MutexGuard thread_status_guard(thread_status_mutex_);
118 0 : ::osl::MutexGuard message_container_guard(message_container_mutex_);
119 :
120 : OSL_PRECOND(!shutdown_requested_, "MailDispatcher thread is shuting down already");
121 :
122 0 : messages_.push_back(message);
123 0 : if (run_)
124 0 : wakening_call_.set();
125 0 : }
126 :
127 0 : uno::Reference<mail::XMailMessage> MailDispatcher::dequeueMailMessage()
128 : {
129 0 : ::osl::MutexGuard guard(message_container_mutex_);
130 0 : uno::Reference<mail::XMailMessage> message;
131 0 : if(!messages_.empty())
132 : {
133 0 : message = messages_.front();
134 0 : messages_.pop_front();
135 : }
136 0 : return message;
137 : }
138 :
139 0 : void MailDispatcher::start()
140 : {
141 : OSL_PRECOND(!isStarted(), "MailDispatcher is already started!");
142 :
143 0 : ::osl::ClearableMutexGuard thread_status_guard(thread_status_mutex_);
144 :
145 : OSL_PRECOND(!shutdown_requested_, "MailDispatcher thread is shuting down already");
146 :
147 0 : if (!shutdown_requested_)
148 : {
149 0 : run_ = true;
150 0 : wakening_call_.set();
151 0 : thread_status_guard.clear();
152 :
153 0 : MailDispatcherListenerContainer_t listeners_cloned(cloneListener());
154 0 : std::for_each(listeners_cloned.begin(), listeners_cloned.end(), GenericEventNotifier(&IMailDispatcherListener::started, this));
155 0 : }
156 0 : }
157 :
158 0 : void MailDispatcher::stop()
159 : {
160 : OSL_PRECOND(isStarted(), "MailDispatcher not started!");
161 :
162 0 : ::osl::ClearableMutexGuard thread_status_guard(thread_status_mutex_);
163 :
164 : OSL_PRECOND(!shutdown_requested_, "MailDispatcher thread is shuting down already");
165 :
166 0 : if (!shutdown_requested_)
167 : {
168 0 : run_ = false;
169 0 : wakening_call_.reset();
170 0 : thread_status_guard.clear();
171 :
172 0 : MailDispatcherListenerContainer_t listeners_cloned(cloneListener());
173 0 : std::for_each(listeners_cloned.begin(), listeners_cloned.end(), GenericEventNotifier(&IMailDispatcherListener::stopped, this));
174 0 : }
175 0 : }
176 :
177 0 : void MailDispatcher::shutdown()
178 : {
179 0 : ::osl::MutexGuard thread_status_guard(thread_status_mutex_);
180 :
181 : OSL_PRECOND(!shutdown_requested_, "MailDispatcher thread is shuting down already");
182 :
183 0 : shutdown_requested_ = true;
184 0 : wakening_call_.set();
185 0 : }
186 :
187 :
188 0 : void MailDispatcher::addListener(::rtl::Reference<IMailDispatcherListener> listener)
189 : {
190 : OSL_PRECOND(!shutdown_requested_, "MailDispatcher thread is shuting down already");
191 :
192 0 : ::osl::MutexGuard guard(listener_container_mutex_);
193 0 : listeners_.push_back(listener);
194 0 : }
195 :
196 0 : std::list< ::rtl::Reference<IMailDispatcherListener> > MailDispatcher::cloneListener()
197 : {
198 0 : ::osl::MutexGuard guard(listener_container_mutex_);
199 0 : return listeners_;
200 : }
201 :
202 0 : void MailDispatcher::sendMailMessageNotifyListener(uno::Reference<mail::XMailMessage> message)
203 : {
204 : try
205 : {
206 0 : mailserver_->sendMailMessage(message);
207 0 : MailDispatcherListenerContainer_t listeners_cloned(cloneListener());
208 0 : std::for_each(listeners_cloned.begin(), listeners_cloned.end(), MailDeliveryNotifier(this, message));
209 : }
210 0 : catch (const mail::MailException& ex)
211 : {
212 0 : MailDispatcherListenerContainer_t listeners_cloned(cloneListener());
213 0 : std::for_each(listeners_cloned.begin(), listeners_cloned.end(), MailDeliveryErrorNotifier(this, message, ex.Message));
214 : }
215 0 : catch (const uno::RuntimeException& 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 : }
221 :
222 0 : void MailDispatcher::run()
223 : {
224 0 : osl_setThreadName("MailDispatcher");
225 :
226 : // acquire a self reference in order to avoid race
227 : // conditions. The last client of this class must
228 : // call shutdown before releasing his last reference
229 : // to this class in order to shutdown this thread
230 : // which will release his (the very last reference
231 : // to the class and so force their destruction
232 0 : m_xSelfReference = this;
233 :
234 : // signal that the mail dispatcher thread is now alive
235 0 : mail_dispatcher_active_.set();
236 :
237 : for(;;)
238 : {
239 0 : wakening_call_.wait();
240 :
241 0 : ::osl::ClearableMutexGuard thread_status_guard(thread_status_mutex_);
242 0 : if (shutdown_requested_)
243 0 : break;
244 :
245 0 : ::osl::ClearableMutexGuard message_container_guard(message_container_mutex_);
246 :
247 0 : if (messages_.size())
248 : {
249 0 : thread_status_guard.clear();
250 0 : uno::Reference<mail::XMailMessage> message = messages_.front();
251 0 : messages_.pop_front();
252 0 : message_container_guard.clear();
253 0 : sendMailMessageNotifyListener(message);
254 : }
255 : else // idle - put ourself to sleep
256 : {
257 0 : wakening_call_.reset();
258 0 : message_container_guard.clear();
259 0 : thread_status_guard.clear();
260 0 : MailDispatcherListenerContainer_t listeners_cloned(cloneListener());
261 0 : std::for_each(listeners_cloned.begin(), listeners_cloned.end(), GenericEventNotifier(&IMailDispatcherListener::idle, this));
262 : }
263 0 : } // end for SSH ALI
264 0 : }
265 :
266 0 : void MailDispatcher::onTerminated()
267 : {
268 : //keep the reference until the end of onTerminated() because of the call order in the
269 : //_threadFunc() from osl/thread.hxx
270 0 : m_xSelfReference = 0;
271 0 : }
272 :
273 : /* vim:set shiftwidth=4 softtabstop=4 expandtab: */
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