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+ add --pidfile cmdline option

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This commit is contained in:
hagen 2016-01-11 10:58:39 +00:00
parent 5d510f1cf4
commit e4255ed712
3 changed files with 20 additions and 17 deletions
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34
DaemonLinux.cpp
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@ -78,22 +78,25 @@ namespace i2p
}
// Pidfile
pidfile = IsService () ? "/var/run" : i2p::util::filesystem::GetDataDir().string();
pidfile.append("/i2pd.pid");
pidFilehandle = open(pidfile.c_str(), O_RDWR | O_CREAT, 0600);
if (pidFilehandle == -1)
{
LogPrint(eLogError, "Daemon: could not create pid file ", pidfile, ": ", strerror(errno));
return false;
// this code is c-styled and a bit ugly, but we need fd for locking pidfile
pidfile = i2p::util::config::GetArg("pidfile", "");
if (pidfile != "") {
pidFH = open(pidfile.c_str(), O_RDWR | O_CREAT, 0600);
if (pidFH < 0)
{
LogPrint(eLogError, "Daemon: could not create pid file ", pidfile, ": ", strerror(errno));
return false;
}
if (lockf(pidFH, F_TLOCK, 0) != 0)
{
LogPrint(eLogError, "Daemon: could not lock pid file ", pidfile, ": ", strerror(errno));
return false;
}
char pid[10];
sprintf(pid, "%d\n", getpid());
ftruncate(pidFH, 0);
write(pidFH, pid, strlen(pid));
}
if (lockf(pidFilehandle, F_TLOCK, 0) == -1)
{
LogPrint(eLogError, "Daemon: could not lock pid file ", pidfile, ": ", strerror(errno));
return false;
}
char pid[10];
sprintf(pid, "%d\n", getpid());
write(pidFilehandle, pid, strlen(pid));
// Signal handler
struct sigaction sa;
@ -110,7 +113,6 @@ namespace i2p
bool DaemonLinux::stop()
{
close(pidFilehandle);
unlink(pidfile.c_str());
return Daemon_Singleton::stop();