From 7162a877bf41bb799b62407429584b7d34bb2401 Mon Sep 17 00:00:00 2001 From: curt Date: Mon, 19 Jan 1998 19:41:22 +0000 Subject: [PATCH] Removed ... not used. --- LaRCsim/ls_sync.c | 187 ---------------------------------------------- 1 file changed, 187 deletions(-) delete mode 100644 LaRCsim/ls_sync.c diff --git a/LaRCsim/ls_sync.c b/LaRCsim/ls_sync.c deleted file mode 100644 index 837df3646..000000000 --- a/LaRCsim/ls_sync.c +++ /dev/null @@ -1,187 +0,0 @@ -/*************************************************************************** - - TITLE: ls_sync.c - ----------------------------------------------------------------------------- - - FUNCTION: Real-time synchronization routines for LaRCSIM - ----------------------------------------------------------------------------- - - MODULE STATUS: Developmental - ----------------------------------------------------------------------------- - - GENEALOGY: Written 921229 by Bruce Jackson - ----------------------------------------------------------------------------- - - DESIGNED BY: EBJ - - CODED BY: EBJ - - MAINTAINED BY: EBJ - ----------------------------------------------------------------------------- - - MODIFICATION HISTORY: - - DATE PURPOSE BY - - 930104 Added ls_resync() call to avoid having to pass DT as a - global variable. EBJ - 940204 Added calculation of sim_control variable overrun to - indicate a frame overrun has occurred. EBJ - 940506 Added support for sim_control_.debug flag, which disables - synchronization (there is still a local dbg flag that - enables synch error logging) EBJ - - CURRENT RCS HEADER: - -$Header$ -$Log$ -Revision 1.1 1997/05/29 00:10:00 curt -Initial Flight Gear revision. - - * Revision 1.7 1994/05/06 15:34:54 bjax - * Removed "freerun" variable, and substituted sim_control_.debug flag. - * - * Revision 1.6 1994/02/16 13:01:22 bjax - * Added logic to signal frame overrun; corrected syntax on ls_catch call - * (old style may be BSD format). EBJ - * - * Revision 1.5 1993/07/30 18:33:14 bjax - * Added 'dt' parameter to call to ls_sync from ls_resync routine. - * - * Revision 1.4 1993/03/15 14:56:13 bjax - * Removed call to ls_pause; this should be done in cockpit routine. - * - * Revision 1.3 93/03/13 20:34:09 bjax - * Modified to allow for sync times longer than a second; added ls_pause() EBJ - * - * Revision 1.2 93/01/06 09:50:47 bjax - * Added ls_resync() function. - * - * Revision 1.1 92/12/30 13:19:51 bjax - * Initial revision - * - * Revision 1.3 93/12/31 10:34:11 bjax - * Added $Log marker as well. - * - ----------------------------------------------------------------------------- - - REFERENCES: - ----------------------------------------------------------------------------- - - CALLED BY: - ----------------------------------------------------------------------------- - - CALLS TO: - ----------------------------------------------------------------------------- - - INPUTS: - ----------------------------------------------------------------------------- - - OUTPUTS: - ---------------------------------------------------------------------------*/ -#include -#include -#include -#include "ls_types.h" -#include "ls_sim_control.h" - - -extern SCALAR Simtime; - -/* give the time interval data structure FILE visibility */ - -static struct itimerval t, ot; - -static int dbug = 0; - -/*void ls_catch( sig, code, sc) /* signal handler */ -/*int sig; -int code; -struct sigcontext *sc;*/ -void ls_catch() -{ - static DATA lastSimtime = -99.9; - - /* printf("In ls_catch()\n"); */ - - /*if (lastSimtime == Simtime) fprintf(stderr, "Overrun.\n"); */ - if (dbug) printf("ls_catch called\n"); - sim_control_.overrun = (lastSimtime == Simtime); - lastSimtime = Simtime; - signal(SIGALRM, ls_catch); -} - -void ls_sync(dt) -float dt; - -/* this routine syncs up the interval timer for a new dt value */ -{ - int terr; - int isec; - float usec; - - if (sim_control_.debug!=0) return; - - isec = (int) dt; - usec = 1000000* (dt - (float) isec); - - t.it_interval.tv_sec = isec; - t.it_interval.tv_usec = usec; - t.it_value.tv_sec = isec; - t.it_value.tv_usec = usec; - if (dbug) printf("ls_sync called\n"); - ls_catch(); /* set up for SIGALRM signal catch */ - terr = setitimer( ITIMER_REAL, &t, &ot ); - if (terr) perror("Error returned from setitimer"); -} - -void ls_unsync() -/* this routine unsyncs the interval timer */ -{ - int terr; - - if (sim_control_.debug!=0) return; - t.it_interval.tv_sec = 0; - t.it_interval.tv_usec = 0; - t.it_value.tv_sec = 0; - t.it_value.tv_usec = 0; -if (dbug) printf("ls_unsync called\n"); - - terr = setitimer( ITIMER_REAL, &t, &ot ); - if (terr) perror("Error returned from setitimer"); - -} - -void ls_resync() -/* this routine resynchronizes the interval timer to the old - interrupt period, stored in struct ot by a previous call - to ls_unsync(). */ -{ - float dt; - - if (sim_control_.debug!=0) return; - if (dbug) printf("ls_resync called\n"); - dt = ((float) ot.it_interval.tv_usec)/1000000. + - ((float) ot.it_interval.tv_sec); - ls_sync(dt); -} - -void ls_pause() -/* this routine waits for the next interrupt */ -{ - if (sim_control_.debug!=0) return; - if (dbug) printf("ls_pause called\n"); - pause(); -} - -- 2.39.2