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fork two time, daemon unit

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This commit is contained in:
MatMoul 2017-05-14 18:55:16 +02:00
parent 21fc1663ba
commit f8ea392738
3 changed files with 30 additions and 10 deletions
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6
sample_scenarios/scenario0
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@ -1,6 +1,6 @@
p sample_profiles/all_blue p /etc/g810-led/sample_profiles/all_blue
w 1000 w 1000
p sample_profiles/all_green p /etc/g810-led/sample_profiles/all_green
w 1000 w 1000
p sample_profiles/all_red p /etc/g810-led/sample_profiles/all_red
w 1000 w 1000

25
src/helpers/daemonizer.cpp
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@ -17,16 +17,35 @@ namespace daemonizer {
void start(char *arg0, std::string scenarioFile) { void start(char *arg0, std::string scenarioFile) {
pid_t pid, sid; pid_t pid, sid;
pid = fork();
if (pid < 0) exit(EXIT_FAILURE);
if (pid > 0) exit(EXIT_SUCCESS);
sid = setsid();
if (sid < 0) exit(EXIT_FAILURE);
signal(SIGCHLD,SIG_IGN); /* ignore child */
signal(SIGHUP,SIG_IGN); /* ignore child */
pid = fork(); pid = fork();
if (pid < 0) exit(EXIT_FAILURE); if (pid < 0) exit(EXIT_FAILURE);
if (pid > 0) exit(EXIT_SUCCESS); if (pid > 0) exit(EXIT_SUCCESS);
umask(0); umask(0);
sid = setsid(); if (chdir("/") < 0) exit(EXIT_FAILURE);
if (sid < 0) exit(EXIT_FAILURE);
//signal(SIGINT, stop);
std::cout<<getpid()<<std::endl; std::cout<<getpid()<<std::endl;
close(STDIN_FILENO);
close(STDOUT_FILENO);
close(STDERR_FILENO);
signal(SIGCHLD,SIG_IGN); /* ignore child */
signal(SIGHUP,SIG_IGN); /* ignore child */
signal(SIGTSTP,SIG_IGN); /* ignore tty signals */
signal(SIGTTOU,SIG_IGN);
signal(SIGTTIN,SIG_IGN);
//signal(SIGINT, stop);
LedKeyboard kbd; LedKeyboard kbd;
kbd.open(); kbd.open();
while(true){ while(true){

9
systemd/g810-led-scenarios.service
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@ -2,10 +2,11 @@
Description=Logitech G810 Led Scenarios Description=Logitech G810 Led Scenarios
[Service] [Service]
#ExecStart=/usr/bin/g810-led --daemon /etc/g810-led/scenario ExecStartPre=/usr/bin/cp /etc/g810-led/scenario /tmp/g810-led-scenario
#ExecSop=kill -2 pid ExecStartPre=/usr/bin/chmod 666 /tmp/g810-led-scenario
#Type=oneshot ExecStart=/usr/bin/g810-led --daemon /tmp/g810-led-scenario
#RemainAfterExit=yes ExecStopPost=/usr/bin/rm /tmp/g810-led-scenario
Type=forking
[Install] [Install]
WantedBy=multi-user.target WantedBy=multi-user.target