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engine: rework timer stuff, move to platform. Move debugger present checks to platform

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This commit is contained in:
Alibek Omarov
2018-11-16 16:32:16 +03:00
parent f0d0861160
commit 7c772d6bfd
8 changed files with 198 additions and 110 deletions
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engine/common/system.c
+18 -106
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@@ -16,7 +16,6 @@ GNU General Public License for more details.
#include "common.h"
#include "mathlib.h"
#include "platform/platform.h"
#include <time.h>
#include <stdlib.h>
#ifdef XASH_SDL
@@ -37,9 +36,6 @@ GNU General Public License for more details.
qboolean error_on_exit = false; // arg for exit();
#define DEBUG_BREAK
#if defined _WIN32 && !defined XASH_SDL
#include <winbase.h>
#endif
/*
================
@@ -48,103 +44,25 @@ Sys_DoubleTime
*/
double GAME_EXPORT Sys_DoubleTime( void )
{
#if XASH_TIMER == TIMER_WIN32
static LARGE_INTEGER g_PerformanceFrequency;
static LARGE_INTEGER g_ClockStart;
LARGE_INTEGER CurrentTime;
if( !g_PerformanceFrequency.QuadPart )
{
QueryPerformanceFrequency( &g_PerformanceFrequency );
QueryPerformanceCounter( &g_ClockStart );
}
QueryPerformanceCounter( &CurrentTime );
return (double)( CurrentTime.QuadPart - g_ClockStart.QuadPart ) / (double)( g_PerformanceFrequency.QuadPart );
#elif XASH_TIMER == TIMER_SDL
static longtime_t g_PerformanceFrequency;
static longtime_t g_ClockStart;
longtime_t CurrentTime;
if( !g_PerformanceFrequency )
{
g_PerformanceFrequency = SDL_GetPerformanceFrequency();
g_ClockStart = SDL_GetPerformanceCounter();
}
CurrentTime = SDL_GetPerformanceCounter();
return (double)( CurrentTime - g_ClockStart ) / (double)( g_PerformanceFrequency );
#elif XASH_TIMER == TIMER_LINUX
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;
#endif
return Platform_DoubleTime();
}
#ifdef GDB_BREAK
#include <fcntl.h>
qboolean Sys_DebuggerPresent( void )
{
char buf[1024];
int status_fd = open( "/proc/self/status", O_RDONLY );
if ( status_fd == -1 )
return 0;
ssize_t num_read = read( status_fd, buf, sizeof( buf ) );
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;
}
#undef DEBUG_BREAK
#ifdef __i386__
#define DEBUG_BREAK \
if( Sys_DebuggerPresent() ) \
asm volatile("int $3;")
#else
#define DEBUG_BREAK \
if( Sys_DebuggerPresent() ) \
raise( SIGINT )
#endif
#endif
#if defined _WIN32 && !defined XASH_64BIT
#ifdef _MSC_VER
BOOL WINAPI IsDebuggerPresent(void);
#define DEBUG_BREAK if( IsDebuggerPresent() ) \
_asm{ int 3 }
#else
#define DEBUG_BREAK if( IsDebuggerPresent() ) \
asm volatile("int $3;")
#endif
#if defined __linux__ || ( defined _WIN32 && !defined XASH_64BIT )
#undef DEBUG_BREAK
qboolean Sys_DebuggerPresent(); // see sys_linux.c
#ifdef _MSC_VER
#define DEBUG_BREAK \
if( Sys_IsDebuggerPresent() ) \
_asm{ int 3 }
#elif __i386__
#define DEBUG_BREAK \
if( Sys_DebuggerPresent() ) \
asm volatile("int $3;")
#else
#define DEBUG_BREAK \
if( Sys_DebuggerPresent() ) \
raise( SIGINT )
#endif
#endif
#ifndef XASH_DEDICATED
@@ -192,13 +110,7 @@ void Sys_Sleep( int msec )
return;
msec = min( msec, 1000 );
#if XASH_TIMER == TIMER_WIN32
Sleep( msec );
#elif XASH_TIMER == TIMER_SDL
SDL_Delay( msec );
#elif XASH_TIMER == TIMER_LINUX
usleep( msec * 1000 );
#endif
Platform_Sleep( msec );
}
/*