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105 lines
2.5 KiB
105 lines
2.5 KiB
/* |
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sys_linux.c - Linux system utils |
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Copyright (C) 2018 a1batross |
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This program is free software: you can redistribute it and/or modify |
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it under the terms of the GNU General Public License as published by |
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the Free Software Foundation, either version 3 of the License, or |
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(at your option) any later version. |
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This program is distributed in the hope that it will be useful, |
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but WITHOUT ANY WARRANTY; without even the implied warranty of |
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
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GNU General Public License for more details. |
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*/ |
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#include <time.h> |
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#include <stdlib.h> |
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#include <fcntl.h> |
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#include <dlfcn.h> |
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#include "platform/platform.h" |
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static void *g_hsystemd; |
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static int (*g_pfn_sd_notify)( int unset_environment, const char *state ); |
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qboolean Sys_DebuggerPresent( void ) |
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{ |
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char buf[4096]; |
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ssize_t num_read; |
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int status_fd; |
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status_fd = open( "/proc/self/status", O_RDONLY ); |
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if ( status_fd == -1 ) |
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return 0; |
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num_read = read( status_fd, buf, sizeof( buf ) ); |
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close( status_fd ); |
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if ( num_read > 0 ) |
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{ |
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static const char TracerPid[] = "TracerPid:"; |
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const byte *tracer_pid; |
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buf[num_read] = 0; |
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tracer_pid = (const byte*)Q_strstr( buf, TracerPid ); |
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if( !tracer_pid ) |
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return false; |
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//printf( "%s\n", tracer_pid ); |
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while( *tracer_pid < '0' || *tracer_pid > '9' ) |
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if( *tracer_pid++ == '\n' ) |
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return false; |
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//printf( "%s\n", tracer_pid ); |
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return !!Q_atoi( (const char*)tracer_pid ); |
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} |
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return false; |
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} |
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void Platform_SetStatus( const char *status ) |
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{ |
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string notify_str; |
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if( !g_pfn_sd_notify ) |
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return; |
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// TODO: report STOPPING=1 |
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Q_snprintf( notify_str, sizeof( notify_str ), |
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"READY=1\n" |
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"WATCHDOG=1\n" |
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"STATUS=%s\n", status ); |
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// Quote: In order to support both service managers that implement this |
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// scheme and those which do not, it is generally recommended to ignore |
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// the return value of this call |
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// a1ba: ok, you asked for no error handling :) |
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g_pfn_sd_notify( false, notify_str ); |
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} |
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void Linux_Init( void ) |
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{ |
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// sd_notify only for dedicated targets, don't waste time on full client |
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if( !Host_IsDedicated( )) |
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return; |
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if(( g_hsystemd = dlopen( "libsystemd.so.0", RTLD_LAZY )) == NULL ) |
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return; |
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if(( g_pfn_sd_notify = dlsym( g_hsystemd, "sd_notify" )) == NULL ) |
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{ |
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dlclose( g_hsystemd ); |
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g_hsystemd = NULL; |
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} |
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Con_Reportf( "%s: sd_notify found, will report status to systemd\n", __func__ ); |
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} |
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void Linux_Shutdown( void ) |
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{ |
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g_pfn_sd_notify = NULL; |
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if( g_hsystemd ) |
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{ |
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dlclose( g_hsystemd ); |
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g_hsystemd = NULL; |
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} |
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}
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