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_timer.h File Reference

#include "rcs_defs.hh"

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Functions
double	clk_tck (void)
double RCS_EXPORT	etime (void)
void RCS_EXPORT	esleep (double secs)
void	start_timer_server (int priority, int sem_id)
void	kill_timer_server (void)
void	print_etime (void)
Variables
int	etime_disabled
double	etime_disable_time
int	esleep_use_yield

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Function Documentation

double clk_tck (  void    )

Definition at line 114 of file _timer.c. { #ifdef VXWORKS #ifndef POWERPC if (global_timer_available) { return (1E-6); } #endif return 1.0 / (double) sysClkRateGet (); #define CLK_TCK_RETURNED #endif #ifdef LYNX return 1.0 / (double) CLK_TCK; #define CLK_TCK_RETURNED #endif #if defined(SUN) || defined(SGI) || defined(LINUX) || defined(darwin) || defined(qnx) return 1.0 / (double) sysconf (_SC_CLK_TCK); #define CLK_TCK_RETURNED #endif #ifdef _Windows return (0.001); #define CLK_TCK_RETURNED #endif #ifdef __MSDOS__ return (1.0 / (double) CLK_TCK); #define CLK_TCK_RETURNED #endif #ifndef CLK_TCK_RETURNED #error No definition for clk tck for this platform. #endif }

double RCS_EXPORT etime (  void    )

void RCS_EXPORT esleep (  double    secs )

Definition at line 345 of file _timer.c. Referenced by CMS_SERVER_REMOTE_STCP_PORT::CMS_SERVER_REMOTE_STCP_PORT(), NML_QR_CLIENT::NML_QR_CLIENT(), STCPMEM::STCPMEM(), autokey_getkey(), NML::blocking_read(), NML::blocking_read_extended(), GLOBMEM::get_access(), main(), mem_get_access(), mem_release_access(), nmlWaitOpen(), rcs_exit(), TCPMEM::reconnect(), recvline(), recvn(), NML_QR_CLIENT::reset(), run_nml_servers(), sendn(), CMS_SERVER::spawn(), RCS_TIMER::wait(), wait_for_servers(), and NML_QR_CLIENT::~NML_QR_CLIENT(). { #ifdef VXWORKS #if 1 int t = (int) (seconds_to_sleep * (double) sysClkRateGet ()); taskDelay (t <= 0 ? 1 : t); /* at least sleep a tick */ #else struct timespec nantime; nantime.tv_sec = (time_t) seconds_to_sleep; nantime.tv_nsec = ((double) (seconds_to_sleep - nantime.tv_sec) * 1e9); return nanosleep (&nantime, NULL); #endif return; #define ESLEEP_RETURNED #endif #if defined (SUN) || defined (LYNX) || defined(irix5) || defined(irix6) || defined(irix64) || defined(LINUX) || defined(darwin) || defined(qnx) #ifndef VXWORKS #if defined(sunos5) || defined(LINUX_KERNEL_2_2_OR_LATER) struct timeval tval; static double clk_tck_val = 0; double total = seconds_to_sleep; /* total sleep asked for */ double started = etime (); /* time when called */ double left = total; if (seconds_to_sleep <= 0.0) return; if (clk_tck_val <= 0) { clk_tck_val = clk_tck (); } do { if (left < clk_tck_val && esleep_use_yield) { #ifdef linux sched_yield (); #else yield (); #endif } else { tval.tv_sec = (long) left; /* double->long truncates, ANSI */ tval.tv_usec = (long) ((left - (double) tval.tv_sec) * 1000000.0); if (tval.tv_sec == 0 && tval.tv_usec == 0) { tval.tv_usec = 1; } if (select (0, NULL, NULL, NULL, &tval) < 0) { if (errno != EINTR) { break; } } } left = total - etime () + started; } while (left > 0 && (left > clk_tck_val && esleep_use_yield)); return; #define ESLEEP_RETURNED #else unsigned int whole_seconds = (int) (seconds_to_sleep); unsigned int useconds = (int) ((seconds_to_sleep - ((double) whole_seconds)) * 1e6); if (seconds_to_sleep <= 1e-6) return; if (whole_seconds > 0) { sleep (whole_seconds); } if (useconds > 0) { usleep (useconds); } return; #define ESLEEP_RETURNED #endif #if 0 struct timespec rqtp, rmtp; rqtp.tv_sec = seconds_to_sleep; rqtp.tv_nsec = seconds_to_sleep * 1E9; if (seconds_to_sleep <= 0.0) return; if (nanosleep (&rqtp, NULL) < 0) { rcs_print_error ("nanosleep error %d %s\n", errno, strerror (errno)); } return; #define ESLEEP_RETURNED #endif #endif #endif #ifdef WIN32 if (seconds_to_sleep <= 0.0) return; #ifndef UNDER_CE SleepEx (((unsigned long) (seconds_to_sleep * 1000)), FALSE); #else Sleep (seconds_to_sleep * 1000); #endif return; #define ESLEEP_RETURNED #else #if defined(WIN16) || defined(_MSC_VER) double t0, tf; if (seconds_to_sleep <= 0.0) return; t0 = etime (); tf = etime (); while ((tf - t0) < seconds_to_sleep) { #ifdef WINDOWS Yeild (); #endif tf = etime (); } return; #define ESLEEP_RETURNED #else #if defined(__MSDOS__) && !defined(_Windows) if (seconds_to_sleep <= 0.0) return; delay ((unsigned int) (seconds_to_sleep * 1000.0)); return; #define ESLEEP_RETURNED #endif #endif #endif #ifndef ESLEEP_RETURNED #error No definition for esleep for this platform. #endif }

void start_timer_server (  int    priority, int    sem_id )

void kill_timer_server (  void    )

void print_etime (  void    )

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Variable Documentation

int etime_disabled

Definition at line 36 of file _timer.h.

double etime_disable_time

Definition at line 37 of file _timer.h.

int esleep_use_yield

Definition at line 38 of file _timer.h.

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