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engine: platform: reorganize UpdateStatusLine, make it shared but implemented only if platform has SetStatus. Implement SetStatus for systemd/Linux

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This commit is contained in:
Alibek Omarov
2023-06-16 08:43:16 +03:00
parent c16a10e6f3
commit 16c87ae2c9
5 changed files with 117 additions and 34 deletions
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53
engine/platform/linux/sys_linux.c
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@@ -16,8 +16,12 @@ GNU General Public License for more details.
#include <time.h>
#include <stdlib.h>
#include <fcntl.h>
#include <dlfcn.h>
#include "platform/platform.h"
static void *g_hsystemd;
static int (*g_pfn_sd_notify)( int unset_environment, const char *state );
qboolean Sys_DebuggerPresent( void )
{
char buf[4096];
@@ -50,3 +54,52 @@ qboolean Sys_DebuggerPresent( void )
return false;
}
void Platform_SetStatus( const char *status )
{
string notify_str;
if( !g_pfn_sd_notify )
return;
// TODO: report STOPPING=1
Q_snprintf( notify_str, sizeof( notify_str ),
"READY=1\n"
"WATCHDOG=1\n"
"STATUS=%s\n", status );
// Quote: In order to support both service managers that implement this
// scheme and those which do not, it is generally recommended to ignore
// the return value of this call
// a1ba: ok, you asked for no error handling :)
g_pfn_sd_notify( false, notify_str );
}
void Linux_Init( void )
{
// sd_notify only for dedicated targets, don't waste time on full client
if( !Host_IsDedicated( ))
return;
if(( g_hsystemd = dlopen( "libsystemd.so.0", RTLD_LAZY )) == NULL )
return;
if(( g_pfn_sd_notify = dlsym( g_hsystemd, "sd_notify" )) == NULL )
{
dlclose( g_hsystemd );
g_hsystemd = NULL;
}
Con_Reportf( "%s: sd_notify found, will report status to systemd\n", __func__ );
}
void Linux_Shutdown( void )
{
g_pfn_sd_notify = NULL;
if( g_hsystemd )
{
dlclose( g_hsystemd );
g_hsystemd = NULL;
}
}