Hallo Liste, Morgen !!!!!. hat jemand schon Timers mit POSIX-Timers unter Linux programmiert? Ich programmiere auf SuSE 9.0 und so viel ich wieß sind die functionen von Posix-Timers in den C- Sources (Biblothek) ( timer_create, timer_settime, timer_delete, clock_gettime ... etc. ). Ich habe den folgenden Programcode: tools.c #include #include #include #include #include #include #include #ifndef OK #define OK 0 #endif #define INTERVAL_UHR 1000 /* interval for intern clock, in millisecs*/ timer_t timer_UHR; /* timer ID */ static unsigned long clk_internuhr_sec=0; /* intern clock in sec.*/ /**************************************************************************** function name: testTimer ****************************************************************************/ int testTimer(void) { timer_UHR = start_timer(INTERVAL_UHR, timeHandler); while (1) { }; stop_timer(timer_UHR); return 0; } /**************************************************************************** Function name: start_timer *****************************************************************************/ timer_t start_timer(int interval_msec, void* handler_func) { timer_t cTimer; /* ptr to return value */ int i; struct itimerspec setTimer; /* time to be set */ struct sigaction sa; /* Install timer_handler as the signal handler for SIGALRM. */ memset (&sa, 0, sizeof (sa)); sa.sa_handler = &timer_handler; sigaction (SIGALRM, &sa, NULL); setTimer.it_value.tv_sec =interval_msec/1000; setTimer.it_value.tv_nsec =(interval_msec%1000)*1000000; setTimer.it_interval.tv_sec =interval_msec/1000; setTimer.it_interval.tv_nsec =(interval_msec%1000)*1000000; if ((i=timer_create( CLOCK_REALTIME, NULL, &cTimer))!=OK) { printf("\nErr with timer_create"); return(0); } if ((i=timer_settime( cTimer, CLOCK_REALTIME, &setTimer, NULL))!=OK) { printf("\nErr with timer_settime"); return(0); } return(cTimer); } /**************************************************************************** Function name: void stop_timer(timer_t dTimer); *****************************************************************************/ void stop_timer(timer_t dTimer) { if (timer_delete(dTimer)!=OK) { printf("\nErr with timer_delete"); } } /**************************************************************************** Function name: void* my_handler(timer_t timerid, int arg); *****************************************************************************/ void* timeHandler(int arg) { clk_internuhr_sec++; printf("\nTime %i",clk_internuhr_sec); return(NULL); } /**************************************************************************** Function name: main() *****************************************************************************/ int main() { printf("TTT\n"); return testTimer(); } Compiliert mit dem Befehl: test3: /home/uvdata/PTP> gcc -Wall -ggdb -o tools.o -D__USE_POSIX199309 tools.c Fehler Meldungen: /tmp/ccmSuZ08.o(.text+0x139): In function `start_timer': /home/uvdata/PTP/tools.c:99: undefined reference to `clock_settime' /tmp/ccmSuZ08.o(.text+0x171):/home/uvdata/PTP/tools.c:105: undefined reference to `timer_create' /tmp/ccmSuZ08.o(.text+0x1a9):/home/uvdata/PTP/tools.c:115: undefined reference to `timer_settime' /tmp/ccmSuZ08.o(.text+0x1f3): In function `stop_timer': /home/uvdata/PTP/tools.c:141: undefined reference to `timer_delete' collect2: ld returned 1 exit status Muss ich beim compilieren eine Library angeben oder verpasse ich etwas beim Posix-timers ? Wenn ja welche oder was? Danke im vorraus. Ashley