#include <cstdlib>
#include <cstdio>
#include <csignal>
+#include <cerrno>
+#include <cstring> // strerror
#include <set>
#include "stg/common.h"
#define START_FILE "/._ST_ART_ED_"
-static bool childExited = false;
set<pid_t> executersPid;
-static pid_t stgChildPid;
volatile time_t stgTime = time(NULL);
-class STG_STOPPER
-{
-public:
- STG_STOPPER() { nonstop = true; }
- bool GetStatus() const { return nonstop; };
- void Stop(const char * __file__, int __line__)
- {
- #ifdef NO_DAEMON
- printfd(__FILE__, "rscriptd stopped at %s:%d\n", __file__, __line__);
- #endif
- nonstop = false;
- }
-private:
- bool nonstop;
-};
-//-----------------------------------------------------------------------------
-STG_STOPPER nonstop;
-//-----------------------------------------------------------------------------
-void CatchPROF(int)
-{
-}
-//-----------------------------------------------------------------------------
-void CatchUSR1(int)
-{
-}
-//-----------------------------------------------------------------------------
-void CatchTERM(int sig)
-{
-/*
- *Function Name:CatchINT
- *Parameters: sig_num - signal number
- *Description: INT signal handler
- *Returns: Nothing
- */
-STG_LOGGER & WriteServLog = GetStgLogger();
-WriteServLog("Shutting down... %d", sig);
-
-nonstop.Stop(__FILE__, __LINE__);
-
-struct sigaction newsa, oldsa;
-sigset_t sigmask;
-
-sigemptyset(&sigmask);
-sigaddset(&sigmask, SIGTERM);
-newsa.sa_handler = SIG_IGN;
-newsa.sa_mask = sigmask;
-newsa.sa_flags = 0;
-sigaction(SIGTERM, &newsa, &oldsa);
-
-sigemptyset(&sigmask);
-sigaddset(&sigmask, SIGINT);
-newsa.sa_handler = SIG_IGN;
-newsa.sa_mask = sigmask;
-newsa.sa_flags = 0;
-sigaction(SIGINT, &newsa, &oldsa);
-}
-//-----------------------------------------------------------------------------
-void CatchPIPE(int)
-{
-STG_LOGGER & WriteServLog = GetStgLogger();
-WriteServLog("Broken pipe!");
-}
-//-----------------------------------------------------------------------------
-void CatchHUP(int)
-{
-}
//-----------------------------------------------------------------------------
-void CatchCHLD(int)
+void KillExecuters()
{
-int status;
-pid_t childPid;
-childPid = waitpid(-1, &status, WNOHANG);
-
set<pid_t>::iterator pid;
-pid = executersPid.find(childPid);
-if (pid != executersPid.end())
- {
- executersPid.erase(pid);
- }
-if (childPid == stgChildPid)
+pid = executersPid.begin();
+while (pid != executersPid.end())
{
- childExited = true;
+ printfd(__FILE__, "KillExecuters pid=%d\n", *pid);
+ kill(*pid, SIGUSR1);
+ ++pid;
}
}
//-----------------------------------------------------------------------------
-void SetSignalHandlers()
-{
-struct sigaction newsa, oldsa;
-sigset_t sigmask;
-
-sigemptyset(&sigmask);
-sigaddset(&sigmask, SIGTERM);
-newsa.sa_handler = CatchTERM;
-newsa.sa_mask = sigmask;
-newsa.sa_flags = 0;
-sigaction(SIGTERM, &newsa, &oldsa);
-
-sigemptyset(&sigmask);
-sigaddset(&sigmask, SIGUSR1);
-newsa.sa_handler = CatchUSR1;
-newsa.sa_mask = sigmask;
-newsa.sa_flags = 0;
-sigaction(SIGUSR1, &newsa, &oldsa);
-
-sigemptyset(&sigmask);
-sigaddset(&sigmask, SIGINT);
-newsa.sa_handler = CatchTERM;
-newsa.sa_mask = sigmask;
-newsa.sa_flags = 0;
-sigaction(SIGINT, &newsa, &oldsa);
-
-sigemptyset(&sigmask);
-sigaddset(&sigmask, SIGPIPE);
-newsa.sa_handler = CatchPIPE;
-newsa.sa_mask = sigmask;
-newsa.sa_flags = 0;
-sigaction(SIGPIPE, &newsa, &oldsa);
-
-sigemptyset(&sigmask);
-sigaddset(&sigmask, SIGHUP);
-newsa.sa_handler = CatchHUP;
-newsa.sa_mask = sigmask;
-newsa.sa_flags = 0;
-sigaction(SIGHUP, &newsa, &oldsa);
-
-sigemptyset(&sigmask);
-sigaddset(&sigmask, SIGCHLD);
-newsa.sa_handler = CatchCHLD;
-newsa.sa_mask = sigmask;
-newsa.sa_flags = 0;
-sigaction(SIGCHLD, &newsa, &oldsa);
-}
-//-----------------------------------------------------------------------------
int StartScriptExecuter(char * procName, int msgKey, int * msgID)
{
STG_LOGGER & WriteServLog = GetStgLogger();
//close(1);
//close(2);
//setsid();
- Executer(msgKey, *msgID, executerPid, procName);
+ Executer(*msgID, executerPid, procName);
return 1;
default: // Parent
if (executersPid.empty())
- Executer(msgKey, *msgID, executerPid, NULL);
+ Executer(*msgID, executerPid, NULL);
executersPid.insert(executerPid);
}
return 0;
}
//-----------------------------------------------------------------------------
+void StopScriptExecuter(int msgID)
+{
+STG_LOGGER & WriteServLog = GetStgLogger();
+
+for (int i = 0; i < 5; ++i)
+ {
+ struct msqid_ds data;
+ if (msgctl(msgID, IPC_STAT, &data))
+ {
+ int e = errno;
+ printfd(__FILE__, "StopScriptExecuter() - msgctl for IPC_STAT failed: '%s'\n", strerror(e));
+ WriteServLog( "Failed to check queue emptiness: '%s'", strerror(e));
+ break;
+ }
+
+ WriteServLog("Messages in queue: %d", data.msg_qnum);
+
+ if (data.msg_qnum == 0)
+ break;
+
+ struct timespec ts = {1, 0};
+ nanosleep(&ts, NULL);
+ }
+
+if (msgctl(msgID, IPC_RMID, NULL))
+ {
+ int e = errno;
+ printfd(__FILE__, "StopScriptExecuter() - msgctl for IPC_STAT failed: '%s'\n", strerror(e));
+ WriteServLog("Failed to remove queue: '%s'", strerror(e));
+ }
+else
+ {
+ WriteServLog("Queue removed successfully.");
+ }
+
+KillExecuters();
+}
+//-----------------------------------------------------------------------------
#ifdef NO_DAEMON
int ForkAndWait(const string &)
#else
#endif
{
#ifndef NO_DAEMON
-stgChildPid = fork();
-string startFile = confDir + START_FILE;
-unlink(startFile.c_str());
+pid_t childPid = fork();
-switch (stgChildPid)
+switch (childPid)
{
case -1: // Failure
return -1;
break;
default: // Parent
- for (int i = 0; i < 120 * 5; i++)
- {
- if (access(startFile.c_str(), F_OK) == 0)
- {
- //printf("Fork successfull. Exit.\n");
- unlink(startFile.c_str());
- exit(0);
- }
-
- if (childExited)
- {
- unlink(startFile.c_str());
- exit(1);
- }
- usleep(200000);
- }
- unlink(startFile.c_str());
exit(1);
break;
}
return 0;
}
//-----------------------------------------------------------------------------
-void KillExecuters()
-{
-set<pid_t>::iterator pid;
-pid = executersPid.begin();
-while (pid != executersPid.end())
- {
- printfd(__FILE__, "KillExecuters pid=%d\n", *pid);
- kill(*pid, SIGUSR1);
- ++pid;
- }
-}
-//-----------------------------------------------------------------------------
int main(int argc, char * argv[])
{
-
-/*
- Initialization order:
- - Logger
- - Config
- - Set signal nandlers
- - Fork and exit
- */
-
CONFIGFILE * cfg = NULL;
LISTENER * listener = NULL;
int msgID = -11;
cfg->ReadString("ScriptOnConnect", &onConnect, "/etc/rscriptd/OnConnect");
cfg->ReadString("ScriptOnDisconnect", &onDisconnect, "/etc/rscriptd/OnDisconnect");
-SetSignalHandlers();
if (ForkAndWait(confDir) < 0)
{
STG_LOGGER & WriteServLog = GetStgLogger();
WriteServLog("rscriptd started successfully.");
WriteServLog("+++++++++++++++++++++++++++++++++++++++++++++");
-#ifndef NO_DAEMON
-string startFile(confDir + START_FILE);
-creat(startFile.c_str(), S_IRUSR);
-#endif
+sigset_t signalSet;
+sigfillset(&signalSet);
+pthread_sigmask(SIG_BLOCK, &signalSet, NULL);
-while (nonstop.GetStatus())
+while (true)
{
- usleep(100000);
+ sigfillset(&signalSet);
+ int sig = 0;
+ printfd(__FILE__, "Before sigwait\n");
+ sigwait(&signalSet, &sig);
+ printfd(__FILE__, "After sigwait. Signal: %d\n", sig);
+ bool stop = false;
+ switch (sig)
+ {
+ case SIGTERM:
+ stop = true;
+ break;
+ case SIGINT:
+ stop = true;
+ break;
+ default:
+ WriteServLog("Ignore signel %d", sig);
+ break;
+ }
+ if (stop)
+ break;
}
listener->Stop();
WriteServLog("+++++++++++++++++++++++++++++++++++++++++++++");
-int res = msgctl(msgID, IPC_RMID, NULL);
-if (res)
- WriteServLog("Queue was not removed. id=%d", msgID);
-else
- WriteServLog("Queue removed successfully.");
-
-KillExecuters();
+StopScriptExecuter(msgID);
WriteServLog("rscriptd stopped successfully.");
WriteServLog("---------------------------------------------");
git.stg.codes / stg.git / blobdiff