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Implement PID support for --request and --status

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This commit is contained in:
Marc Di Luzio 2019-05-10 20:40:31 +01:00
parent baff9c0363
commit 717777e6c2
2 changed files with 105 additions and 47 deletions
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142
daemon/main.c
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@ -65,8 +65,10 @@ POSSIBILITY OF SUCH DAMAGE.
#define USAGE_TEXT \ #define USAGE_TEXT \
"Usage: %s [-d] [-l] [-r] [-t] [-h] [-v]\n\n" \ "Usage: %s [-d] [-l] [-r] [-t] [-h] [-v]\n\n" \
" -r, --request Request gamemode and pause\n" \ " -r[PID], --request=[PID] Toggle gamemode for process\n" \
" -s, --status Query the status of gamemode\n" \ " When no PID given, requests gamemode and pauses\n" \
" -s[PID], --status=[PID] Query the status of gamemode for process\n" \
" When no PID given, queries the status globally\n" \
" -d, --daemonize Daemonize self after launch\n" \ " -d, --daemonize Daemonize self after launch\n" \
" -l, --log-to-syslog Log to syslog\n" \ " -l, --log-to-syslog Log to syslog\n" \
" -r, --test Run tests\n" \ " -r, --test Run tests\n" \
@ -107,9 +109,9 @@ int main(int argc, char *argv[])
/* Options struct for getopt_long */ /* Options struct for getopt_long */
static struct option long_options[] = { static struct option long_options[] = {
{ "daemonize", no_argument, 0, 'd' }, { "log-to-syslog", no_argument, 0, 'l' }, { "daemonize", no_argument, 0, 'd' }, { "log-to-syslog", no_argument, 0, 'l' },
{ "request", no_argument, 0, 'r' }, { "test", no_argument, 0, 't' }, { "request", optional_argument, 0, 'r' }, { "test", no_argument, 0, 't' },
{ "status", no_argument, 0, 's' }, { "help", no_argument, 0, 'h' }, { "status", optional_argument, 0, 's' }, { "help", no_argument, 0, 'h' },
{ "version", no_argument, 0, 'v' } { "version", no_argument, 0, 'v' }
}; };
static const char *short_options = "dls::r::tvh"; static const char *short_options = "dls::r::tvh";
@ -124,53 +126,107 @@ int main(int argc, char *argv[])
break; break;
case 's': case 's':
if (optarg != NULL) {
switch (gamemode_query_status()) { pid_t pid = atoi(optarg);
case 0: switch (gamemode_query_status_for(pid)) {
LOG_MSG("gamemode is inactive\n"); case 0: /* inactive */
break; LOG_MSG("gamemode is inactive\n");
case 1: break;
LOG_MSG("gamemode is active\n"); case 1: /* active not not registered */
break; LOG_MSG("gamemode is active but [%d] not registered\n", pid);
case -1: break;
LOG_ERROR("gamemode status request failed: %s\n", gamemode_error_string()); case 2: /* active for client */
exit(EXIT_FAILURE); LOG_MSG("gamemode is active and [%d] registered\n", pid);
default: break;
LOG_ERROR("gamemode_query_status returned unexpected value 2\n"); case -1:
exit(EXIT_FAILURE); LOG_ERROR("gamemode_query_status_for(%d) failed: %s\n",
pid,
gamemode_error_string());
exit(EXIT_FAILURE);
default:
LOG_ERROR("gamemode_query_status returned unexpected value 2\n");
exit(EXIT_FAILURE);
}
} else {
switch (gamemode_query_status()) {
case 0:
LOG_MSG("gamemode is inactive\n");
break;
case 1:
LOG_MSG("gamemode is active\n");
break;
case -1:
LOG_ERROR("gamemode status request failed: %s\n", gamemode_error_string());
exit(EXIT_FAILURE);
default:
LOG_ERROR("gamemode_query_status returned unexpected value 2\n");
exit(EXIT_FAILURE);
}
} }
exit(EXIT_SUCCESS); exit(EXIT_SUCCESS);
case 'r': case 'r':
if (gamemode_request_start() < 0) { if (optarg != NULL) {
LOG_ERROR("gamemode request failed: %s\n", gamemode_error_string()); pid_t pid = atoi(optarg);
exit(EXIT_FAILURE); switch (gamemode_query_status_for(pid)) {
} case 0: /* inactive */
case 1: /* active not not registered */
LOG_MSG("gamemode not active for client, requesting start for %d...\n", pid);
if (gamemode_request_start_for(pid) < 0) {
LOG_ERROR("gamemode_request_start_for(%d) failed: %s\n",
pid,
gamemode_error_string());
exit(EXIT_FAILURE);
}
LOG_MSG("request succeeded\n");
break;
case 2: /* active for client */
LOG_MSG("gamemode active for client, requesting end for %d...\n", pid);
if (gamemode_request_end_for(pid) < 0) {
LOG_ERROR("gamemode_request_end_for(%d) failed: %s\n",
pid,
gamemode_error_string());
exit(EXIT_FAILURE);
}
LOG_MSG("request succeeded\n");
break;
case -1:
LOG_ERROR("gamemode_query_status_for(%d) failed: %s\n",
pid,
gamemode_error_string());
exit(EXIT_FAILURE);
}
} else {
if (gamemode_request_start() < 0) {
LOG_ERROR("gamemode request failed: %s\n", gamemode_error_string());
exit(EXIT_FAILURE);
}
switch (gamemode_query_status()) { switch (gamemode_query_status()) {
case 2: case 2:
LOG_MSG("gamemode request succeeded and is active\n"); LOG_MSG("gamemode request succeeded and is active\n");
break; break;
case 1: case 1:
LOG_ERROR("gamemode request succeeded and is active but registration failed\n"); LOG_ERROR("gamemode request succeeded and is active but registration failed\n");
exit(EXIT_FAILURE); exit(EXIT_FAILURE);
case 0: case 0:
LOG_ERROR("gamemode request succeeded but is not active\n"); LOG_ERROR("gamemode request succeeded but is not active\n");
exit(EXIT_FAILURE); exit(EXIT_FAILURE);
} }
// Simply pause and wait a SIGINT // Simply pause and wait a SIGINT
if (signal(SIGINT, sigint_handler_noexit) == SIG_ERR) { if (signal(SIGINT, sigint_handler_noexit) == SIG_ERR) {
FATAL_ERRORNO("Could not catch SIGINT"); FATAL_ERRORNO("Could not catch SIGINT");
} }
pause(); pause();
// Explicitly clean up // Explicitly clean up
if (gamemode_request_end() < 0) { if (gamemode_request_end() < 0) {
LOG_ERROR("gamemode request failed: %s\n", gamemode_error_string()); LOG_ERROR("gamemode request failed: %s\n", gamemode_error_string());
exit(EXIT_FAILURE); exit(EXIT_FAILURE);
}
} }
exit(EXIT_SUCCESS); exit(EXIT_SUCCESS);

10
data/gamemoded.8.in
View File

@ -14,11 +14,13 @@ The design has a clear cut abstraction between the host daemon and library (\fBg
.SH OPTIONS .SH OPTIONS
.TP 8 .TP 8
.B \-r, \-\-request .B \-r[PID], \-\-request=[PID]
Request gamemode and pause Toggle gamemode for process.
When no PID given, requests gamemode and pauses
.TP 8 .TP 8
.B \-s, \-\-status .B \-s[PID], \-\-status=[PID]
Query the status of gamemode Query the status of gamemode for process
When no PID given, queries the status globally
.TP 8 .TP 8
.B \-d, \-\-daemonize .B \-d, \-\-daemonize
Run the daemon as a separate process (daemonize it) Run the daemon as a separate process (daemonize it)