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author | Michal Kubecek <mkubecek@suse.cz> | 2015-04-13 09:21:39 +0200 |
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committer | Michal Kubecek <mkubecek@suse.cz> | 2015-04-13 09:21:39 +0200 |
commit | e2bc6f4153813cc570ae814c8ddb74628009b488 (patch) | |
tree | a40b171be1d859c2232ccc94f758010f9ae54d3c /src/patterns/observer.cpp | |
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initial checkin
Check in contents of upstream 1.4.2 tarball, exclude generated files.
Diffstat (limited to 'src/patterns/observer.cpp')
-rw-r--r-- | src/patterns/observer.cpp | 53 |
1 files changed, 53 insertions, 0 deletions
diff --git a/src/patterns/observer.cpp b/src/patterns/observer.cpp new file mode 100644 index 0000000..c09e80c --- /dev/null +++ b/src/patterns/observer.cpp @@ -0,0 +1,53 @@ +/* + Copyright (C) 2005-2009 Michel de Boer <michel@twinklephone.com> + + This program is free software; you can redistribute it and/or modify + it under the terms of the GNU General Public License as published by + the Free Software Foundation; either version 2 of the License, or + (at your option) any later version. + + This program is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + GNU General Public License for more details. + + You should have received a copy of the GNU General Public License + along with this program; if not, write to the Free Software + Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA +*/ + +#include "observer.h" + +using namespace patterns; + +t_subject::~t_subject() { + mtx_observers.lock(); + for (list<t_observer *>::const_iterator it = observers.begin(); + it != observers.end(); ++it) + { + (*it)->subject_destroyed(); + } + mtx_observers.unlock(); +} + +void t_subject::attach(t_observer *o) { + mtx_observers.lock(); + observers.push_back(o); + mtx_observers.unlock(); +} + +void t_subject::detach(t_observer *o) { + mtx_observers.lock(); + observers.remove(o); + mtx_observers.unlock(); +} + +void t_subject::notify(void) const { + mtx_observers.lock(); + for (list<t_observer *>::const_iterator it = observers.begin(); + it != observers.end(); ++it) + { + (*it)->update(); + } + mtx_observers.unlock(); +} |