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

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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
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61
examples/echo/echo-client.cpp
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@ -7,6 +7,7 @@
#include <pthread.h>
#include <signal.h>
#include <stdio.h>
#include <cstring>
using namespace std;
@ -31,22 +32,20 @@ static const int THREADS = 3;
static bool spin = true;
EchoClient *g_client = NULL;
DBus::Pipe *thread_pipe_list[THREADS];
void *greeter_thread(void *arg)
{
DBus::Connection *conn = reinterpret_cast<DBus::Connection *>(arg);
EchoClient client(*conn, ECHO_SERVER_PATH, ECHO_SERVER_NAME);
char idstr[16];
int i = (int) arg;
snprintf(idstr, sizeof(idstr), "%lu", pthread_self());
for (int i = 0; i < 30 && spin; ++i)
{
cout << client.Hello(idstr) << endl;
}
thread_pipe_list[i]->write (idstr, strlen (idstr) + 1);
cout << idstr << " done " << endl;
cout << idstr << " done (" << i << ")" << endl;
return NULL;
}
@ -60,6 +59,36 @@ void niam(int sig)
dispatcher.leave();
}
void handler1 (const void *data, void *buffer, unsigned int nbyte)
{
char *str = (char*) buffer;
cout << "buffer1: " << str << endl;
for (int i = 0; i < 30 && spin; ++i)
{
cout << g_client->Hello (str) << endl;
}
}
void handler2 (const void *data, void *buffer, unsigned int nbyte)
{
char *str = (char*) buffer;
cout << "buffer2: " << str << endl;
for (int i = 0; i < 30 && spin; ++i)
{
cout << g_client->Hello (str) << endl;
}
}
void handler3 (const void *data, void *buffer, unsigned int nbyte)
{
char *str = (char*) buffer;
cout << "buffer3: " << str << endl;
for (int i = 0; i < 30 && spin; ++i)
{
cout << g_client->Hello (str) << endl;
}
}
int main()
{
signal(SIGTERM, niam);
@ -71,13 +100,19 @@ int main()
DBus::Connection conn = DBus::Connection::SessionBus();
EchoClient client (conn, ECHO_SERVER_PATH, ECHO_SERVER_NAME);
g_client = &client;
pthread_t threads[THREADS];
thread_pipe_list[0] = dispatcher.add_pipe (handler1, NULL);
thread_pipe_list[1] = dispatcher.add_pipe (handler2, NULL);
thread_pipe_list[2] = dispatcher.add_pipe (handler3, NULL);
for (int i = 0; i < THREADS; ++i)
{
pthread_create(threads+i, NULL, greeter_thread, &conn);
pthread_create(threads+i, NULL, greeter_thread, (void*) i);
}
dispatcher.enter();
cout << "terminating" << endl;
@ -87,5 +122,9 @@ int main()
pthread_join(threads[i], NULL);
}
dispatcher.del_pipe (thread_pipe_list[0]);
dispatcher.del_pipe (thread_pipe_list[1]);
dispatcher.del_pipe (thread_pipe_list[2]);
return 0;
}