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-rw-r--r--man/dudki.8.in11
-rw-r--r--src/dudki.cc61
-rw-r--r--src/process.cc30
-rw-r--r--src/process.h2
4 files changed, 65 insertions, 39 deletions
diff --git a/man/dudki.8.in b/man/dudki.8.in
index 3011034..05db733 100644
--- a/man/dudki.8.in
+++ b/man/dudki.8.in
@@ -28,2 +28,3 @@ dudki \- a process monitoring daemon
.if \*[longopt] [\fB--test\fR]
+[\fI<process-list>\fR]
@@ -47,3 +48,4 @@ Specify the configuration file to use (default is
.el \fB-k\fR
-Stop the running instance by sending the \fBSIGTERM\fR signal.
+Stop the running instance by sending the \fBSIGTERM\fR signal. If no process
+name specified on the command line, dudki kills his own running instance.
.TP
@@ -51,3 +53,5 @@ Stop the running instance by sending the \fBSIGTERM\fR signal.
.el \fB-r\fR
-Reload the running instance by sending the \fBSIGHUP\fR signal.
+Reload the running instance by sending the \fBSIGHUP\fR signal. Like with
+\fB-k\fR, if no process name specified on the command line, dudki sends
+\fBSIGHUP\fR to his own running instance.
.TP
@@ -55,3 +59,4 @@ Reload the running instance by sending the \fBSIGHUP\fR signal.
.el \fB-c\fR
-Check if dudki is running. Exit with non-zero status if not.
+Check if dudki is running. Exit with non-zero status if not. The same target
+rules as in \fB-k\fR and \fB-r\fR apply here.
.TP
diff --git a/src/dudki.cc b/src/dudki.cc
index b4e95a7..e91ad5e 100644
--- a/src/dudki.cc
+++ b/src/dudki.cc
@@ -64,5 +64,3 @@ int main(int argc,char **argv) {
op_work,
- op_hup,
- op_term,
- op_check,
+ op_signal,
op_ensure,
@@ -70,2 +68,3 @@ int main(int argc,char **argv) {
} op = op_default;
+ int op_signum = 0;
while(true) {
@@ -95,3 +94,4 @@ int main(int argc,char **argv) {
cerr << PHEADER << endl
- << PCOPY << endl << endl <<
+ << PCOPY << endl << endl
+ << " " << argv[0] << " [options] [processes]" << endl << endl <<
#ifdef HAVE_GETOPT_LONG
@@ -104,5 +104,7 @@ int main(int argc,char **argv) {
"\n"
- " -k, --kill stop running instance\n"
+ " -k, --kill stop running instance (send SIGTERM)\n"
" -r, --reload reload running instance (send SIGHUP)\n"
- " -c, --check check if dudki is running\n"
+ " -c, --check check if the process is running\n"
+ " (the above commands operate on dudki itself if no\n"
+ " process name has been specified)\n"
" -e, --ensure ensure that dudki is running\n"
@@ -115,5 +117,7 @@ int main(int argc,char **argv) {
"\n"
- " -k stop running instance\n"
+ " -k stop running instance (send SIGTERM)\n"
" -r reload running instance (send SIGHUP)\n"
- " -c check if dudki is running\n"
+ " -c check if the process is running\n"
+ " (the above commands operate on dudki itself if no\n"
+ " process name has been specified)\n"
" -e ensure that dudki is running\n"
@@ -141,3 +145,3 @@ int main(int argc,char **argv) {
}
- op = op_term;
+ op = op_signal; op_signum = SIGTERM;
break;
@@ -148,3 +152,3 @@ int main(int argc,char **argv) {
}
- op = op_hup;
+ op = op_signal; op_signum = SIGHUP;
break;
@@ -155,3 +159,3 @@ int main(int argc,char **argv) {
}
- op = op_check;
+ op = op_signal; op_signum = 0;
break;
@@ -189,14 +193,27 @@ int main(int argc,char **argv) {
break;
- case op_hup:
- signal_self(config,SIGHUP);
- break;
- case op_term:
- signal_self(config,SIGTERM);
- break;
- case op_check:
- try{
- signal_self(config,0);
- exit(0);
+ case op_signal:
+ try {
+ if(optind>=argc) {
+ signal_self(config,op_signum);
+ }else{
+ int failures = 0;
+ for(int narg=optind;narg<argc;narg++) {
+ try {
+ processes_t::const_iterator i = config.processes.find(argv[narg]);
+ if(i==config.processes.end())
+ throw runtime_error("no such process configured");
+ i->second.signal(op_signum);
+ }catch(exception& e) {
+ cerr << "dudki(" << argv[narg] << "): " << e.what() << endl;
+ failures++;
+ }
+ }
+ if(failures)
+ throw runtime_error("not all processes have been successfully signaled");
+ }
+ if(!op_signum)
+ exit(0);
}catch(exception& e) {
- exit(1);
+ if(!op_signum)
+ exit(1);
}
diff --git a/src/process.cc b/src/process.cc
index bfab311..1ffac9f 100644
--- a/src/process.cc
+++ b/src/process.cc
@@ -17,17 +17,6 @@ using namespace std;
void process::check(const string& id,configuration& config) {
- bool running = false;
- ifstream pids(pidfile.c_str(),ios::in);
- if(pids) {
- pid_t pid = 0;
- pids >> pid;
- pids.close();
- if(pid) {
- if(!kill(pid,0)) {
- running = true;
- }
- }
- }
- if(running){
+ try {
+ signal(0);
patience = 0;
- }else{
+ }catch(exception& e) {
if(patience>60) { // TODO: configurable
@@ -187 +176,14 @@ void process::notify_mailto(const string& email,const string& id,const string& e
}
+
+void process::signal(int signum) const {
+ ifstream pids(pidfile.c_str(),ios::in);
+ if(!pids)
+ throw runtime_error("no pidfile found");
+ pid_t pid = 0;
+ pids >> pid;
+ pids.close();
+ if(!pid)
+ throw runtime_error("no pid in pidfile");
+ if(kill(pid,signum))
+ throw runtime_error("failed to signal process");
+}
diff --git a/src/process.h b/src/process.h
index b6d7091..27ee049 100644
--- a/src/process.h
+++ b/src/process.h
@@ -31,2 +31,4 @@ class process {
const string& description,configuration& config);
+
+ void signal(int signum) const;
};