parent
36879aa9c5
commit
8ca01af2d1
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/////////////////////////////////////////////////////////////////////////////////
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//
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// nwthread.cc is part of TestModbus-Client.
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//
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/////////////////////////////////////////////////////////////////////////////////
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#include <errno.h>
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#include <glib.h>
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#include <sys/time.h>
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#include <string>
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#include <string.h>
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#if defined(_WIN32) || defined(_WIN64) || defined(__CYGWIN__)
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#else
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#include <unistd.h> /* close() */
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#endif
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#include "tcp.h"
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#include "nwthread.h"
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#include "client.h"
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extern NetworkThread netthread;
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// c / C++ wrapper
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gpointer _Thread (gpointer data) {
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netthread.Thread ();
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return NULL;
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};
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NetworkThread::NetworkThread() {
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g_mutex_init (&mutex);
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thread = NULL;
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state = 0;
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host = "";
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port = "";
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};
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NetworkThread::~NetworkThread() {
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Disconnect();
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g_mutex_clear(&mutex);
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};
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void NetworkThread::Lock() {
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g_mutex_lock(&mutex);
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};
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void NetworkThread::UnLock() {
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g_mutex_unlock(&mutex);
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};
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/*
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* start network thread and connect
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*/
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int NetworkThread::Connect(std::string dest_host, std::string dest_port) {
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printf ("%s:%d NetworkThread::Connect to %s:%s\n", __FILE__, __LINE__, dest_host.c_str(), dest_port.c_str());
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//
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// if there is an open connection close this one first
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if (GetState() != NWT_nothing) Disconnect();
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host = dest_host;
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port = dest_port;
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thread = g_thread_new("network thread", _Thread, NULL);
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return -1;
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};
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/*
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* stop network connection
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*/
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int NetworkThread::Disconnect() {
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printf ("%s:%d NetworkThread::Disconnect\n", __FILE__, __LINE__);
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Lock();
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if (state != NWT_nothing) state = NWT_close;
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UnLock();
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while (GetState() != NWT_nothing) { usleep(1000); };
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if (thread != NULL) g_thread_unref(thread);
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thread = NULL;
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return 0;
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};
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void NetworkThread::SetState(int s) {
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Lock();
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state = s;
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UnLock();
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};
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int NetworkThread::GetState() {
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int s;
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Lock();
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s = state;
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UnLock();
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return s;
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};
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void NetworkThread::ClientSendStatustext(char *txt) {
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char *msg = NULL;
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if (txt) {
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int l = strlen (txt)+1;
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msg = (char*) malloc(l+1);
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memset (msg, 0x0, l+1);
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strncpy (msg, txt, strlen (txt));
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}
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gdk_threads_add_idle(mbcli_thread_cb_status, msg);
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}
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void NetworkThread::Thread() {
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printf ("%s:%d NetworkThread::Thread Started\n", __FILE__, __LINE__);
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TCP tcp;
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ClientSendStatustext((char*)"connecting");
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SetState (NWT_connect);
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if (tcp.Connect(host, port) != 1) {
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ClientSendStatustext(strerror(errno));
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}
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else {
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//
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// destination host and port should be set already
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SetState(NWT_running);
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while (GetState() == NWT_running) {
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ClientSendStatustext((char*)"connected");
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usleep (1000);
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}
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if(GetState() == NWT_close) {
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ClientSendStatustext((char*)"");
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}
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}
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SetState(NWT_nothing);
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ClientSendStatustext(NULL);
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printf ("%s:%d NetworkThread::Thread Finished\n", __FILE__, __LINE__);
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};
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@ -0,0 +1,49 @@
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/////////////////////////////////////////////////////////////////////////////////
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//
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// nwthread.h is part of TestModbus-Client.
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//
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/////////////////////////////////////////////////////////////////////////////////
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#ifndef _NWTHREAD_H_
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#define _NWTHREAD_H_
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#include <string>
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#include <gtk/gtk.h>
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#include <gdk/gdk.h>
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#include <glib.h>
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enum {
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NWT_nothing,
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NWT_connect,
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NWT_running,
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NWT_close
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};
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class NetworkThread {
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private:
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GMutex mutex;
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GThread *thread;
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int state;
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std::string host, port;
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void SetState(int s);
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void ClientSendStatustext(char* txt);
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public:
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NetworkThread();
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~NetworkThread();
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void Lock();
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void UnLock();
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int Connect(std::string dest_host, std::string dest_port);
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int Disconnect();
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int GetState();
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void Thread();
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};
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#endif
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