Add files

[libs/core.git] / source / event.cpp

diff --git a/source/event.cpp b/source/event.cpp
new file mode 100644 (file)
index 0000000..b314fca
--- /dev/null
+++ b/source/event.cpp
@@ -0,0 +1,58 @@
+/*
+This file is part of libmspframework
+Copyright © 2006 Mikko Rasa, Mikkosoft Productions
+Distributed under the LGPL
+*/
+#include "application.h"
+#include "event.h"
+
+using namespace std;
+
+namespace Msp {
+
+EventManager::EventManager(Application &a):
+       app(a),
+       next_id(1)
+{
+       app.add_pollable(&pipe, POLLIN).signal_event.connect(sigc::mem_fun(this, &EventManager::data_available));
+}
+
+EventManager::Event &EventManager::create_event()
+{
+       events.push_back(Event(*this, next_id++));
+       return events.back();
+}
+
+void EventManager::data_available(short)
+{
+       unsigned buf[1024];
+       int len=pipe.read((char *)buf, sizeof(buf));
+       for(unsigned i=0; i*sizeof(unsigned)<(unsigned)len; ++i)
+       {
+               for(list<Event>::iterator j=events.begin(); j!=events.end(); ++j)
+                       if(j->get_id()==buf[i])
+                               j->signal_triggered.emit();
+       }
+}
+
+void EventManager::Event::trigger()
+{
+       mgr.pipe.write((char *)&id, sizeof(id));
+}
+
+EventManager::Pipe::Pipe()
+{
+       ::pipe(fd);
+}
+
+int EventManager::Pipe::write(char *buf, unsigned len)
+{
+       return ::write(fd[1], buf, len);
+}
+
+int EventManager::Pipe::read(char *buf, unsigned len)
+{
+       return ::read(fd[0], buf, len);
+}
+
+} // namespace Msp