19682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall/* 29682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall SDL - Simple DirectMedia Layer 39682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall Copyright (C) 1997-2012 Sam Lantinga 49682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall 59682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall This library is free software; you can redistribute it and/or 69682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall modify it under the terms of the GNU Lesser General Public 79682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall License as published by the Free Software Foundation; either 89682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall version 2.1 of the License, or (at your option) any later version. 99682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall 109682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall This library is distributed in the hope that it will be useful, 119682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall but WITHOUT ANY WARRANTY; without even the implied warranty of 129682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU 139682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall Lesser General Public License for more details. 149682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall 159682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall You should have received a copy of the GNU Lesser General Public 169682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall License along with this library; if not, write to the Free Software 179682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA 189682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall 199682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall Sam Lantinga 209682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall slouken@libsdl.org 219682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall*/ 229682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall#include "SDL_config.h" 239682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall 249682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall#ifdef SDL_TIMER_UNIX 259682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall 269682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall#include <stdio.h> 279682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall#include <sys/time.h> 289682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall#include <signal.h> 299682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall#include <unistd.h> 309682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall#include <string.h> 319682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall#include <errno.h> 329682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall 339682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall#include "SDL_timer.h" 349682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall#include "../SDL_timer_c.h" 359682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall 369682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall/* The clock_gettime provides monotonous time, so we should use it if 379682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall it's available. The clock_gettime function is behind ifdef 389682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall for __USE_POSIX199309 399682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall Tommi Kyntola (tommi.kyntola@ray.fi) 27/09/2005 409682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall*/ 419682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall#if HAVE_NANOSLEEP || HAVE_CLOCK_GETTIME 429682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall#include <time.h> 439682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall#endif 449682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall 459682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall#if SDL_THREAD_PTH 469682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall#include <pth.h> 479682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall#endif 489682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall 499682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall#if SDL_THREADS_DISABLED 509682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall#define USE_ITIMER 519682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall#endif 529682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall 539682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall/* The first ticks value of the application */ 549682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall#ifdef HAVE_CLOCK_GETTIME 559682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hallstatic struct timespec start; 569682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall#else 579682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hallstatic struct timeval start; 589682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall#endif /* HAVE_CLOCK_GETTIME */ 599682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall 609682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall 619682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hallvoid SDL_StartTicks(void) 629682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall{ 639682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall /* Set first ticks value */ 649682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall#if HAVE_CLOCK_GETTIME 659682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall clock_gettime(CLOCK_MONOTONIC,&start); 669682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall#else 679682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall gettimeofday(&start, NULL); 689682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall#endif 699682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall} 709682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall 719682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse HallUint32 SDL_GetTicks (void) 729682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall{ 739682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall#if HAVE_CLOCK_GETTIME 749682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall Uint32 ticks; 759682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall struct timespec now; 769682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall clock_gettime(CLOCK_MONOTONIC,&now); 779682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall ticks=(now.tv_sec-start.tv_sec)*1000+(now.tv_nsec-start.tv_nsec)/1000000; 789682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall return(ticks); 799682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall#else 809682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall Uint32 ticks; 819682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall struct timeval now; 829682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall gettimeofday(&now, NULL); 839682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall ticks=(now.tv_sec-start.tv_sec)*1000+(now.tv_usec-start.tv_usec)/1000; 849682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall return(ticks); 859682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall#endif 869682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall} 879682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall 889682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hallvoid SDL_Delay (Uint32 ms) 899682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall{ 909682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall#if SDL_THREAD_PTH 919682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall pth_time_t tv; 929682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall tv.tv_sec = ms/1000; 939682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall tv.tv_usec = (ms%1000)*1000; 949682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall pth_nap(tv); 959682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall#else 969682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall int was_error; 979682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall 989682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall#if HAVE_NANOSLEEP 999682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall struct timespec elapsed, tv; 1009682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall#else 1019682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall struct timeval tv; 1029682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall Uint32 then, now, elapsed; 1039682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall#endif 1049682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall 1059682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall /* Set the timeout interval */ 1069682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall#if HAVE_NANOSLEEP 1079682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall elapsed.tv_sec = ms/1000; 1089682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall elapsed.tv_nsec = (ms%1000)*1000000; 1099682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall#else 1109682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall then = SDL_GetTicks(); 1119682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall#endif 1129682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall do { 1139682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall errno = 0; 1149682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall 1159682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall#if HAVE_NANOSLEEP 1169682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall tv.tv_sec = elapsed.tv_sec; 1179682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall tv.tv_nsec = elapsed.tv_nsec; 1189682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall was_error = nanosleep(&tv, &elapsed); 1199682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall#else 1209682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall /* Calculate the time interval left (in case of interrupt) */ 1219682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall now = SDL_GetTicks(); 1229682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall elapsed = (now-then); 1239682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall then = now; 1249682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall if ( elapsed >= ms ) { 1259682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall break; 1269682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall } 1279682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall ms -= elapsed; 1289682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall tv.tv_sec = ms/1000; 1299682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall tv.tv_usec = (ms%1000)*1000; 1309682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall 1319682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall was_error = select(0, NULL, NULL, NULL, &tv); 1329682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall#endif /* HAVE_NANOSLEEP */ 1339682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall } while ( was_error && (errno == EINTR) ); 1349682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall#endif /* SDL_THREAD_PTH */ 1359682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall} 1369682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall 1379682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall#ifdef USE_ITIMER 1389682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall 1399682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hallstatic void HandleAlarm(int sig) 1409682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall{ 1419682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall Uint32 ms; 1429682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall 1439682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall if ( SDL_alarm_callback ) { 1449682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall ms = (*SDL_alarm_callback)(SDL_alarm_interval); 1459682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall if ( ms != SDL_alarm_interval ) { 1469682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall SDL_SetTimer(ms, SDL_alarm_callback); 1479682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall } 1489682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall } 1499682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall} 1509682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall 1519682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hallint SDL_SYS_TimerInit(void) 1529682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall{ 1539682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall struct sigaction action; 1549682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall 1559682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall /* Set the alarm handler (Linux specific) */ 1569682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall SDL_memset(&action, 0, sizeof(action)); 1579682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall action.sa_handler = HandleAlarm; 1589682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall action.sa_flags = SA_RESTART; 1599682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall sigemptyset(&action.sa_mask); 1609682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall sigaction(SIGALRM, &action, NULL); 1619682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall return(0); 1629682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall} 1639682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall 1649682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hallvoid SDL_SYS_TimerQuit(void) 1659682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall{ 1669682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall SDL_SetTimer(0, NULL); 1679682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall} 1689682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall 1699682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hallint SDL_SYS_StartTimer(void) 1709682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall{ 1719682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall struct itimerval timer; 1729682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall 1739682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall timer.it_value.tv_sec = (SDL_alarm_interval/1000); 1749682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall timer.it_value.tv_usec = (SDL_alarm_interval%1000)*1000; 1759682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall timer.it_interval.tv_sec = (SDL_alarm_interval/1000); 1769682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall timer.it_interval.tv_usec = (SDL_alarm_interval%1000)*1000; 1779682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall setitimer(ITIMER_REAL, &timer, NULL); 1789682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall return(0); 1799682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall} 1809682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall 1819682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hallvoid SDL_SYS_StopTimer(void) 1829682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall{ 1839682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall struct itimerval timer; 1849682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall 1859682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall SDL_memset(&timer, 0, (sizeof timer)); 1869682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall setitimer(ITIMER_REAL, &timer, NULL); 1879682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall} 1889682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall 1899682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall#else /* USE_ITIMER */ 1909682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall 1919682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall#include "SDL_thread.h" 1929682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall 1939682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall/* Data to handle a single periodic alarm */ 1949682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hallstatic int timer_alive = 0; 1959682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hallstatic SDL_Thread *timer = NULL; 1969682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall 1979682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hallstatic int RunTimer(void *unused) 1989682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall{ 1999682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall while ( timer_alive ) { 2009682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall if ( SDL_timer_running ) { 2019682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall SDL_ThreadedTimerCheck(); 2029682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall } 2039682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall SDL_Delay(1); 2049682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall } 2059682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall return(0); 2069682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall} 2079682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall 2089682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall/* This is only called if the event thread is not running */ 2099682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hallint SDL_SYS_TimerInit(void) 2109682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall{ 2119682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall timer_alive = 1; 2129682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall timer = SDL_CreateThread(RunTimer, NULL); 2139682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall if ( timer == NULL ) 2149682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall return(-1); 2159682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall return(SDL_SetTimerThreaded(1)); 2169682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall} 2179682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall 2189682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hallvoid SDL_SYS_TimerQuit(void) 2199682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall{ 2209682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall timer_alive = 0; 2219682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall if ( timer ) { 2229682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall SDL_WaitThread(timer, NULL); 2239682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall timer = NULL; 2249682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall } 2259682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall} 2269682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall 2279682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hallint SDL_SYS_StartTimer(void) 2289682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall{ 2299682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall SDL_SetError("Internal logic error: Linux uses threaded timer"); 2309682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall return(-1); 2319682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall} 2329682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall 2339682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hallvoid SDL_SYS_StopTimer(void) 2349682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall{ 2359682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall return; 2369682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall} 2379682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall 2389682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall#endif /* USE_ITIMER */ 2399682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall 2409682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall#endif /* SDL_TIMER_UNIX */ 241