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daemon

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git-svn-id: svn://elaine/murooma/trunk@187 d8a302eb-03bc-478d-80e4-98257eca68ef
This commit is contained in:
(no author) 2014-08-13 06:12:25 +00:00
parent 6855687f96
commit b0add66146
4 changed files with 118 additions and 42 deletions
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90
server/snapServer.cpp
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@ -23,6 +23,8 @@
#include "common/chunk.h"
#include "common/timeUtils.h"
#include "common/queue.h"
#include "common/signalHandler.h"
#include <syslog.h>
using boost::asio::ip::tcp;
@ -35,6 +37,9 @@ using namespace std;
using namespace std::chrono;
bool g_terminated = false;
std::string return_current_time_and_date()
{
auto now = system_clock::now();
@ -149,7 +154,7 @@ public:
void stop()
{
acceptThread->join();
// acceptThread->join();
}
private:
@ -160,17 +165,62 @@ private:
};
void daemonize()
{
/* Our process ID and Session ID */
pid_t pid, sid;
/* Fork off the parent process */
pid = fork();
if (pid < 0)
exit(EXIT_FAILURE);
/* If we got a good PID, then
we can exit the parent process. */
if (pid > 0)
exit(EXIT_SUCCESS);
/* Change the file mode mask */
umask(0);
/* Open any logs here */
/* Create a new SID for the child process */
sid = setsid();
if (sid < 0)
{
/* Log the failure */
exit(EXIT_FAILURE);
}
/* Change the current working directory */
if ((chdir("/")) < 0)
{
/* Log the failure */
exit(EXIT_FAILURE);
}
/* Close out the standard file descriptors */
close(STDIN_FILENO);
close(STDOUT_FILENO);
close(STDERR_FILENO);
}
int main(int argc, char* argv[])
{
try
{
size_t port;
string fifoName;
bool runAsDaemon;
po::options_description desc("Allowed options");
desc.add_options()
("help,h", "produce help message")
("port,p", po::value<size_t>(&port)->default_value(98765), "port to listen on")
("fifo,f", po::value<string>(&fifoName)->default_value("/tmp/snapfifo"), "name of fifo file")
("daemon,d", po::bool_switch(&runAsDaemon)->default_value(false), "daemonize")
;
po::variables_map vm;
@ -198,6 +248,11 @@ int main(int argc, char* argv[])
}
*/
if (runAsDaemon)
daemonize();
openlog ("firstdaemon", LOG_PID, LOG_DAEMON);
using namespace std; // For atoi.
Server* server = new Server(port);
server->start();
@ -206,34 +261,11 @@ int main(int argc, char* argv[])
gettimeofday(&tvChunk, NULL);
long nextTick = getTickCount();
/* pid_t pid, sid;
pid = fork();
if (pid < 0) {
exit(EXIT_FAILURE);
}
if (pid > 0) {
exit(EXIT_SUCCESS);
}
umask(0);
sid = setsid();
if (sid < 0) {
exit(EXIT_FAILURE);
}
if ((chdir("/")) < 0) {
exit(EXIT_FAILURE);
}
close(STDIN_FILENO);
close(STDOUT_FILENO);
close(STDERR_FILENO);
*/
mkfifo(fifoName.c_str(), 0777);
while (true)
while (!g_terminated)
{
syslog (LOG_NOTICE, "First daemon started.");
int fd = open(fifoName.c_str(), O_RDONLY);
try
{
@ -281,7 +313,6 @@ int main(int argc, char* argv[])
close(fd);
}
return 0;
server->stop();
}
catch (std::exception& e)
@ -289,7 +320,8 @@ int main(int argc, char* argv[])
std::cerr << "Exception: " << e.what() << "\n";
}
return 0;
syslog (LOG_NOTICE, "First daemon terminated.");
closelog();
}