eddy/small_tel
1
0
Fork 0
mirror of https://github.com/eddyem/small_tel.git synced 2026-05-01 18:37:07 +03:00
Code Issues Packages Projects Releases Wiki Activity

fix dome daemon to print fits-header

Browse Source
This commit is contained in:
Edward Emelianov
2026-04-01 11:08:22 +03:00
parent 7318307d4d
commit a324302404
10 changed files with 261 additions and 65 deletions
Download Patch File Download Diff File Expand all files Collapse all files

102
Daemons/domedaemon_baader/main.c
View File

@@ -20,12 +20,22 @@
#include <signal.h>
#include <stdio.h>
#include <string.h>
#include <linux/prctl.h>
#include <sys/prctl.h>
#include <sys/wait.h>
#include <sys/socket.h>
#include <usefull_macros.h>
#include "header.h"
#include "socket.h"
#include "term.h"
#define DEFAULT_PIDFILE "/tmp/domedaemon.pid"
#define DEFAULT_HEADERFILE "/tmp/dome.fits"
#define DEFAULT_DOMENAME "Baader"
static pid_t childpid = 0;
typedef struct{
int help;
int verbose;
@@ -37,12 +47,17 @@ typedef struct{
char *node;
char *termpath;
char *pidfile;
char *headerfile;
char *dome_name;
} parameters;
static parameters G = {
.maxclients = 2,
.serspeed = 9600,
.sertmout = 5000
.sertmout = 5000,
.pidfile = DEFAULT_PIDFILE,
.headerfile = DEFAULT_HEADERFILE,
.dome_name = DEFAULT_DOMENAME,
};
static sl_option_t cmdlnopts[] = {
@@ -52,34 +67,56 @@ static sl_option_t cmdlnopts[] = {
{"node", NEED_ARG, NULL, 'n', arg_string, APTR(&G.node), "node \"IP\", \"name:IP\" or path (could be \"\\0path\" for anonymous UNIX-socket)"},
{"unixsock", NO_ARGS, NULL, 'u', arg_int, APTR(&G.isunix), "UNIX socket instead of INET"},
{"maxclients", NEED_ARG, NULL, 'm', arg_int, APTR(&G.maxclients),"max amount of clients connected to server (default: 2)"},
{"pidfile", NEED_ARG, NULL, 'p', arg_string, APTR(&G.pidfile), "PID-file"},
{"pidfile", NEED_ARG, NULL, 'p', arg_string, APTR(&G.pidfile), "full path to PID-file (default: " DEFAULT_PIDFILE ")"},
{"serialdev", NEED_ARG, NULL, 'd', arg_string, APTR(&G.termpath), "full path to serial device"},
{"baudrate", NEED_ARG, NULL, 'b', arg_int, APTR(&G.serspeed), "serial device speed (baud)"},
{"sertmout", NEED_ARG, NULL, 'T', arg_double, APTR(&G.sertmout), "serial device timeout (us)"},
{"baudrate", NEED_ARG, NULL, 'b', arg_int, APTR(&G.serspeed), "serial device speed (baud, default: 9600)"},
{"sertmout", NEED_ARG, NULL, 'T', arg_double, APTR(&G.sertmout), "serial device timeout (us, default: 5000)"},
{"headerfile", NEED_ARG, NULL, 'H', arg_string, APTR(&G.headerfile),"full path to output FITS-header (default: " DEFAULT_HEADERFILE ")"},
{"domename", NEED_ARG, NULL, 'N', arg_string, APTR(&G.dome_name), "dome name in FITS-header (default: " DEFAULT_DOMENAME ")"},
end_option
};
void sl_iffound_deflt(pid_t pid){
WARNX("Another copy of this process found, pid=%d. Exit.", pid);
exit(1); // don't run `signals` to protect foreign PID-file from removal
}
// SIGUSR1 - FORBID observations
// SIGUSR2 - allow
void signals(int sig){
if(sig){
if(sig == SIGUSR1){
forbid_observations(1);
return;
}else if(sig == SIGUSR2){
forbid_observations(0);
return;
if(signals != signal(sig, SIG_IGN)) exit(sig); // function called "as is", before sig registration
if(childpid == 0){ // child -> test USR1/USR2
LOGDBG("Child gotta signal %d", sig);
if(sig == SIGUSR1){
forbid_observations(1);
LOGMSG("Got signal `observations forbidden`");
signal(sig, signals);
return;
}else if(sig == SIGUSR2){
forbid_observations(0);
LOGMSG("Got signal `observations permitted`");
signal(sig, signals);
return;
}
}
signal(sig, SIG_IGN);
DBG("Get signal %d, quit.\n", sig);
LOGERR("Exit with status %d", sig);
}else LOGERR("Exit");
DBG("Stop server");
stopserver();
DBG("Close terminal");
term_close();
DBG("Exit");
LOGDBG("Get signal %d, quit.\n", sig);
}
if(childpid == 0){
DBG("Stop server");
LOGMSG("Stop server");
stopserver();
DBG("Close terminal");
LOGMSG("Close terminal");
term_close();
}else{
if(G.pidfile){
LOGMSG("Unlink %s", G.pidfile);
usleep(10000);
unlink(G.pidfile);
}
}
LOGERR("Exit with status %d", sig);
exit(sig);
}
@@ -88,9 +125,13 @@ int main(int argc, char **argv){
sl_init();
sl_parseargs(&argc, &argv, cmdlnopts);
if(G.help) sl_showhelp(-1, cmdlnopts);
if(!G.node) ERRX("Point node");
if(!G.node) ERRX("Point communication node");
if(!G.termpath) ERRX("Point serial device path");
if(!header_create(G.headerfile))
ERRX("Cannot write into '%s'", G.headerfile);
domename(G.dome_name);
sl_check4running((char*)__progname, G.pidfile);
if(sl_daemonize()) ERR("Can't daemonize!");
sl_loglevel_e lvl = G.verbose + LOGLEVEL_ERR;
if(lvl >= LOGLEVEL_AMOUNT) lvl = LOGLEVEL_AMOUNT - 1;
if(G.logfile) OPENLOG(G.logfile, lvl, 1);
@@ -103,11 +144,26 @@ int main(int argc, char **argv){
signal(SIGINT, signals);
signal(SIGQUIT, signals);
signal(SIGTSTP, SIG_IGN);
signal(SIGHUP, signals);
signal(SIGUSR1, SIG_IGN);
signal(SIGUSR2, SIG_IGN);
while(1){ // guard for dead processes
childpid = fork();
if(childpid){
LOGMSG("create child with PID %d\n", childpid);
DBG("Created child with PID %d\n", childpid);
wait(NULL);
WARNX("Child %d died\n", childpid);
LOGWARN("Child %d died\n", childpid);
sleep(1);
}else{
prctl(PR_SET_PDEATHSIG, SIGTERM); // send SIGTERM to child when parent dies
break; // go out to normal functional
}
}
// react for USRx only in child
signal(SIGUSR1, signals);
signal(SIGUSR2, signals);
runserver(G.isunix, G.node, G.maxclients);
LOGMSG("Ended");
DBG("Close");
LOGERR("Server error -> exit");
return 0;
}