Xash3D FWGS engine.
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/*
sys_linux.c - Linux system utils
Copyright (C) 2018 a1batross
This program is free software: you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation, either version 3 of the License, or
(at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
*/
#include <time.h>
#include <stdlib.h>
#include <fcntl.h>
#include "platform/platform.h"
#if XASH_TIMER == TIMER_LINUX
double Platform_DoubleTime( void )
{
static longtime_t g_PerformanceFrequency;
static longtime_t g_ClockStart;
longtime_t CurrentTime;
struct timespec ts;
if( !g_PerformanceFrequency )
{
struct timespec res;
if( !clock_getres(CLOCK_MONOTONIC, &res) )
g_PerformanceFrequency = 1000000000LL/res.tv_nsec;
}
clock_gettime(CLOCK_MONOTONIC, &ts);
return (double) ts.tv_sec + (double) ts.tv_nsec/1000000000.0;
}
void Platform_Sleep( int msec )
{
usleep( msec * 1000 );
}
#endif // XASH_TIMER == TIMER_LINUX
qboolean Sys_DebuggerPresent( void )
{
char buf[1024];
ssize_t num_read;
int status_fd;
status_fd = open( "/proc/self/status", O_RDONLY );
if ( status_fd == -1 )
return 0;
num_read = read( status_fd, buf, sizeof( buf ) );
close( status_fd );
if ( num_read > 0 )
{
static const char TracerPid[] = "TracerPid:";
const byte *tracer_pid;
buf[num_read] = 0;
tracer_pid = (const byte*)Q_strstr( buf, TracerPid );
if( !tracer_pid )
return false;
//printf( "%s\n", tracer_pid );
while( *tracer_pid < '0' || *tracer_pid > '9' )
if( *tracer_pid++ == '\n' )
return false;
//printf( "%s\n", tracer_pid );
return !!Q_atoi( (const char*)tracer_pid );
}
return false;
}