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Documenting the threading/* classes.

Browse source 
Also switching from semaphores to mutexes as the former don't seem to
be fully supported on MacOS.
This commit is contained in:
Robin Sommer 2012-01-31 23:47:33 -08:00
parent 2df3738d1a
commit a428645b2a
6 changed files with 499 additions and 106 deletions
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56
src/threading/MsgThread.cc
View file

@ -6,25 +6,13 @@
using namespace threading;
static void strreplace(const string& s, const string& o, const string& n)
{
string r = s;
while ( true )
{
size_t i = r.find(o);
if ( i == std::string::npos )
break;
r.replace(i, o.size(), n);
}
}
namespace threading {
// Standard messages.
////// Messages.
// Signals child thread to terminate. This is actually a no-op; its only
// purpose is unblock the current read operation so that the child's Run()
// methods can check the termination status.
class TerminateMessage : public InputMessage<MsgThread>
{
public:
@ -33,6 +21,22 @@ public:
virtual bool Process() { return true; }
};
/// Sends a heartbeat to the child thread.
class HeartbeatMessage : public InputMessage<MsgThread>
{
public:
HeartbeatMessage(MsgThread* thread, double arg_network_time, double arg_current_time)
: InputMessage<MsgThread>("Heartbeat", thread)
{ network_time = arg_network_time; current_time = arg_current_time; }
virtual bool Process() { return Object()->DoHeartbeat(network_time, current_time); }
private:
double network_time;
double current_time;
};
// A message from the child to be passed on to the Reporter.
class ReporterMessage : public OutputMessage<MsgThread>
{
public:
@ -52,21 +56,8 @@ private:
Type type;
};
class HeartbeatMessage : public InputMessage<MsgThread>
{
public:
HeartbeatMessage(MsgThread* thread, double arg_network_time, double arg_current_time)
: InputMessage<MsgThread>("Heartbeat", thread)
{ network_time = arg_network_time; current_time = arg_current_time; }
virtual bool Process() { return Object()->DoHeartbeat(network_time, current_time); }
private:
double network_time;
double current_time;
};
#ifdef DEBUG
// A debug message from the child to be passed on to the DebugLogger.
class DebugMessage : public OutputMessage<MsgThread>
{
public:
@ -77,8 +68,7 @@ public:
virtual bool Process()
{
string s = Object()->Name() + ": " + msg;
strreplace(s, "%", "%%");
debug_logger.Log(stream, s.c_str());
debug_logger.Log(stream, "%s", s.c_str());
return true;
}
private:
@ -89,7 +79,7 @@ private:
}
// Methods.
////// Methods.
Message::~Message()
{