jeena/dbus-cplusplus
1
0
Fork 0
Code Issues Pull requests Projects Packages Wiki Activity Actions

added pipe mechanism for default main loop to synchronize with other threads

Browse source
This commit is contained in:
Andreas Volz 2010-07-31 00:20:51 +02:00
parent 9ac4f0252f
commit 8a3fb381a1
3 changed files with 163 additions and 28 deletions
Download patch file Download diff file Expand all files Collapse all files

56
include/dbus-c++/eventloop-integration.h
View file

@ -57,30 +57,51 @@ class DXXAPI BusWatch : public Watch, public DefaultWatch
friend class BusDispatcher;
};
class DXXAPI Pipe
{
public:
/*!
* Write some data into the communication pipe.
*
* @param buffer The raw data to write.
* @param nbytes The number of bytes to write from the buffer.
*/
void write(const void *buffer, unsigned int nbytes);
/*!
* Simply write one single byte into the pipe. This is a shortcut
* if there's really no data to transport, but to actvate the handler.
*/
void signal();
private:
void(*_handler)(const void *data, void *buffer, unsigned int nbyte);
int fd_write;
int fd_read;
const void *data;
// allow construction only in BusDipatcher
Pipe () {};
~Pipe () {};
friend class BusDispatcher;
};
class DXXAPI BusDispatcher : public Dispatcher, public DefaultMainLoop
{
public:
int _pipe[2];
BusDispatcher() : _running(false)
{
//pipe to create a new fd used to unlock a dispatcher at any
// moment (used by leave function)
int ret = pipe(_pipe);
if (ret == -1) throw Error("PipeError:errno", toString(errno).c_str());
_fdunlock[0] = _pipe[0];
_fdunlock[1] = _pipe[1];
}
~BusDispatcher()
{}
BusDispatcher();
~BusDispatcher() {}
virtual void enter();
virtual void leave();
virtual Pipe *add_pipe(void(*handler)(const void *data, void *buffer, unsigned int nbyte), const void *data);
virtual void del_pipe (Pipe *pipe);
virtual void do_iteration();
virtual Timeout *add_timeout(Timeout::Internal *);
@ -96,8 +117,9 @@ public:
void timeout_expired(DefaultTimeout &);
private:
bool _running;
int _pipe[2];
std::list <Pipe*> pipe_list;
};
} /* namespace DBus */