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74 lines
1.8 KiB
74 lines
1.8 KiB
6 years ago
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/*
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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 "platform/platform.h"
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#if XASH_TIMER == TIMER_LINUX
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double Platform_DoubleTime( void )
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{
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static longtime_t g_PerformanceFrequency;
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static longtime_t g_ClockStart;
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longtime_t CurrentTime;
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struct timespec ts;
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if( !g_PerformanceFrequency )
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{
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struct timespec res;
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if( !clock_getres(CLOCK_MONOTONIC, &res) )
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g_PerformanceFrequency = 1000000000LL/res.tv_nsec;
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}
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clock_gettime(CLOCK_MONOTONIC, &ts);
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return (double) ts.tv_sec + (double) ts.tv_nsec/1000000000.0;
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}
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void Platform_Sleep( int msec )
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{
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usleep( msec * 1000 );
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}
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#endif // XASH_TIMER == TIMER_LINUX
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qboolean Sys_DebuggerPresent( void )
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{
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char buf[1024];
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int 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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ssize_t num_read = read( status_fd, buf, sizeof( buf ) );
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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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