fosi.c
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00001 /***************************************************************************
00002   tag: Peter Soetens  Mon Jan 10 15:59:15 CET 2005  fosi.c 
00003 
00004                         fosi.c -  description
00005                            -------------------
00006     begin                : Mon January 10 2005
00007     copyright            : (C) 2005 Peter Soetens
00008     email                : peter.soetens@mech.kuleuven.ac.be
00009  
00010  ***************************************************************************
00011  *   This library is free software; you can redistribute it and/or         *
00012  *   modify it under the terms of the GNU General Public                   *
00013  *   License as published by the Free Software Foundation;                 *
00014  *   version 2 of the License.                                             *
00015  *                                                                         *
00016  *   As a special exception, you may use this file as part of a free       *
00017  *   software library without restriction.  Specifically, if other files   *
00018  *   instantiate templates or use macros or inline functions from this     *
00019  *   file, or you compile this file and link it with other files to        *
00020  *   produce an executable, this file does not by itself cause the         *
00021  *   resulting executable to be covered by the GNU General Public          *
00022  *   License.  This exception does not however invalidate any other        *
00023  *   reasons why the executable file might be covered by the GNU General   *
00024  *   Public License.                                                       *
00025  *                                                                         *
00026  *   This library is distributed in the hope that it will be useful,       *
00027  *   but WITHOUT ANY WARRANTY; without even the implied warranty of        *
00028  *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU     *
00029  *   Lesser General Public License for more details.                       *
00030  *                                                                         *
00031  *   You should have received a copy of the GNU General Public             *
00032  *   License along with this library; if not, write to the Free Software   *
00033  *   Foundation, Inc., 59 Temple Place,                                    *
00034  *   Suite 330, Boston, MA  02111-1307  USA                                *
00035  *                                                                         *
00036  ***************************************************************************/
00037  
00038  
00039 #define OROBLD_OS_LXRT_INTERNAL
00040 #include "os/fosi.h"
00041 
00042 #ifdef OROBLD_OS_AGNOSTIC
00043 // Encapsulate all RTAI/LXRT specific functions
00044 
00045 // hrt is in nanoseconds
00046 TIME_SPEC ticks2timespec(RTIME hrt)
00047 {
00048         TIME_SPEC timevl;
00049         timevl.tv_sec = nano2count(hrt) / 1000000000LL;
00050         timevl.tv_nsec = nano2count(hrt) % 1000000000LL;
00051         return timevl;
00052 }
00053 
00054 // turn this on to have maximum detection of valid system calls.
00055 #ifdef OROSEM_OS_LXRT_CHECK
00056 #define CHK_LXRT_CALL() do { if(rt_buddy() == 0) { \
00057         printf("LXRT NOT INITIALISED IN THIS THREAD pid=%d,\n\
00058     BUT TRIES TO INVOKE LXRT FUNCTION >>%s<< ANYWAY\n", getpid(), __FUNCTION__ );\
00059         assert( rt_buddy() != 0 ); }\
00060         } while(0)
00061 #define CHK_LXRT_PTR(ptr) do { if(ptr == 0) { \
00062         printf("TRIED TO PASS NULL POINTER TO LXRT IN THREAD pid=%d,\n\
00063     IN TRYING TO INVOKE LXRT FUNCTION >>%s<<\n", getpid(), __FUNCTION__ );\
00064         assert( ptr != 0 ); }\
00065         } while(0)
00066 #else
00067 #define CHK_LXRT_CALL()
00068 #define CHK_LXRT_PTR( a )
00069 #endif
00070 
00071     
00072 NANO_TIME rtos_get_time_ns(void) { return rt_get_time_ns(); }
00073 
00074 TICK_TIME rtos_get_time_ticks(void) { return rt_get_time(); }
00075 
00076 TICK_TIME ticksPerSec(void) { return nano2count( 1000 * 1000 * 1000 ); }
00077 
00078 TICK_TIME nano2ticks(NANO_TIME t) { return nano2count(t); }
00079 
00080 NANO_TIME ticks2nano(TICK_TIME t) { return count2nano(t); }
00081 
00082 
00083 int rtos_nanosleep(const TIME_SPEC *rqtp, TIME_SPEC *rmtp) 
00084 {
00085     CHK_LXRT_CALL();
00086     nanosleep(rqtp,rmtp); // rtai 24.1.9
00087     return 0;
00088 }
00089 
00090     int rtos_sem_init(rt_sem_t* m, int value )
00091     {
00092         CHK_LXRT_CALL();
00093                 // store the pointer in m->opaque...
00094         m->sem = rt_sem_init( rt_get_name(0) , value);
00095         return m->sem == 0 ? -1 : 0;
00096     }
00097 
00098     int rtos_sem_destroy(rt_sem_t* m )
00099     {
00100         CHK_LXRT_CALL();
00101         return rt_sem_delete(m->sem);
00102     }
00103 
00104     int rtos_sem_signal(rt_sem_t* m )
00105     {
00106         CHK_LXRT_CALL();
00107         return rt_sem_signal(m->sem);
00108     }
00109 
00110     int rtos_sem_wait(rt_sem_t* m )
00111     {
00112         CHK_LXRT_CALL();
00113         return rt_sem_wait(m->sem);
00114     }
00115 
00116     int rtos_sem_trywait(rt_sem_t* m )
00117     {
00118         CHK_LXRT_CALL();
00119         return rt_sem_wait_if(m->sem);
00120     }
00121 
00122     int rtos_sem_value(rt_sem_t* m )
00123     {
00124         CHK_LXRT_CALL();
00125         return rt_sem_count(m->sem);
00126     }
00127 
00128     int rtos_sem_wait_timed(rt_sem_t* m, NANO_TIME delay )
00129     {
00130       int ret;
00131         CHK_LXRT_CALL();
00132         ret = rt_sem_wait_timed(m->sem, nano2count(delay) );
00133 #if defined(CONFIG_RTAI_VERSION_MINOR) && defined(CONFIG_RTAI_VERSION_MAJOR)
00134 #  if CONFIG_RTAI_VERSION_MAJOR == 3 && CONFIG_RTAI_VERSION_MINOR > 3
00135         return (ret == RTE_TIMOUT) ? -1 : 0;
00136 #  else
00137         return (ret == SEM_TIMOUT) ? -1 : 0;
00138 #  endif
00139 #else
00140         return (ret == SEM_TIMOUT) ? -1 : 0;
00141 #endif
00142     }
00143 
00144     int rtos_sem_wait_until(rt_sem_t* m, NANO_TIME when )
00145     {
00146         int ret;
00147         CHK_LXRT_CALL();
00148         ret = rt_sem_wait_until(m->sem, nano2count(when) ) ;
00149 #if defined(CONFIG_RTAI_VERSION_MINOR) && defined(CONFIG_RTAI_VERSION_MAJOR)
00150 #  if CONFIG_RTAI_VERSION_MAJOR == 3 && CONFIG_RTAI_VERSION_MINOR > 3
00151         return (ret == RTE_TIMOUT) ? -1 : 0;
00152 #  else
00153         return (ret == SEM_TIMOUT) ? -1 : 0;
00154 #  endif
00155 #else
00156         return (ret == SEM_TIMOUT) ? -1 : 0;
00157 #endif
00158     }
00159 
00160     int rtos_mutex_init(rt_mutex_t* m)
00161     {
00162         CHK_LXRT_CALL();
00163         m->sem = rt_typed_sem_init( rt_get_name(0),1, BIN_SEM | PRIO_Q);
00164         return m->sem == 0 ? -1 : 0;
00165     }
00166 
00167     int rtos_mutex_destroy(rt_mutex_t* m )
00168     {
00169         CHK_LXRT_CALL();
00170         CHK_LXRT_PTR(m);
00171         return rt_sem_delete(m->sem);
00172     }
00173 
00174     int rtos_mutex_rec_init(rt_mutex_t* m)
00175     {
00176         CHK_LXRT_CALL();
00177         // RES_SEM is PRIO_Q anyhow.
00178         m->sem = rt_typed_sem_init( rt_get_name(0), 1, RES_SEM);
00179         return m->sem == 0 ? -1 : 0;
00180     }
00181 
00182     int rtos_mutex_rec_destroy(rt_mutex_t* m )
00183     {
00184         CHK_LXRT_CALL();
00185         CHK_LXRT_PTR(m->sem);
00186         return rt_sem_delete(m->sem);
00187     }
00188 
00189     int rtos_mutex_rec_lock( rt_rec_mutex_t* m)
00190     {
00191         CHK_LXRT_CALL();
00192         return rt_sem_wait(m->sem);
00193     }
00194 
00195     int rtos_mutex_rec_trylock( rt_rec_mutex_t* m)
00196     {
00197         CHK_LXRT_CALL();
00198         return rt_sem_wait_if(m->sem) > 0 ? 0 : -EAGAIN;
00199     }
00200 
00201     int rtos_mutex_lock_until( rt_mutex_t* m, NANO_TIME abs_time)
00202     {
00203         CHK_LXRT_CALL();
00204         return rt_sem_wait_until(m->sem, nano2count(abs_time)) < SEM_TIMOUT ? 0 : -EAGAIN;
00205     }
00206 
00207     int rtos_mutex_rec_lock_until( rt_rec_mutex_t* m, NANO_TIME abs_time)
00208     {
00209         CHK_LXRT_CALL();
00210         return rt_sem_wait_until(m->sem, nano2count(abs_time)) < SEM_TIMOUT ? 0 : -EAGAIN;
00211     }
00212 
00213     int rtos_mutex_rec_unlock( rt_rec_mutex_t* m)
00214     {
00215         CHK_LXRT_CALL();
00216         return rt_sem_signal(m->sem);
00217     }
00218 
00219     int rtos_mutex_lock( rt_mutex_t* m)
00220     {
00221         CHK_LXRT_CALL();
00222         CHK_LXRT_PTR(m->sem);
00223         return rt_sem_wait(m->sem);
00224     }
00225 
00226     int rtos_mutex_trylock( rt_mutex_t* m)
00227     {
00228         CHK_LXRT_CALL();
00229         CHK_LXRT_PTR(m->sem);
00230         return rt_sem_wait_if(m->sem) > 0 ? 0 : -EAGAIN;
00231     }
00232 
00233     int rtos_mutex_unlock( rt_mutex_t* m)
00234     {
00235         CHK_LXRT_CALL();
00236         CHK_LXRT_PTR(m->sem);
00237         return rt_sem_signal(m->sem);
00238     }
00239 
00240     int rtos_cond_init(rt_cond_t *cond)
00241     {
00242         CHK_LXRT_CALL();
00243         cond->cond = rt_cond_init(0);
00244         return cond->cond == 0 ? -1 : 0;
00245     }
00246 
00247     int rtos_cond_destroy(rt_cond_t *cond)
00248     {
00249         CHK_LXRT_CALL();
00250         return rt_cond_delete(cond->cond);
00251     }
00252 
00253     int rtos_cond_wait(rt_cond_t *cond, rt_mutex_t *mutex)
00254     {
00255         CHK_LXRT_CALL();
00256         int ret = rt_cond_wait(cond->cond, mutex->sem );
00257         if (ret == 0)
00258             return 0;
00259         return -1;
00260     }
00261 
00262     int rtos_cond_timedwait(rt_cond_t *cond, rt_mutex_t *mutex, NANO_TIME abs_time)
00263     {
00264         CHK_LXRT_CALL();
00265         int ret = rt_cond_wait_until(cond->cond, mutex->sem, nano2count(abs_time) );
00266         if (ret == 0)
00267             return 0;
00268         if ( ret == SEM_TIMOUT )
00269             return ETIMEDOUT;
00270         return -1;
00271     }
00272 
00273     int rtos_cond_broadcast(rt_cond_t *cond)
00274     {
00275         CHK_LXRT_CALL();
00276         return rt_cond_broadcast(cond->cond);
00277     }
00278 
00279 int rtos_printf(const char *fmt, ...)
00280 {
00281     va_list list;
00282     char printkbuf [2000];
00283     printkbuf[0] = '\0';
00284     va_start (list, fmt);
00285     vsprintf(printkbuf, fmt, list);
00286     va_end (list);
00287     // XXX revert to print to screen when debugging is over
00288     return rtai_print_to_screen(printkbuf);
00289     //return printf(printkbuf);
00290 }
00291 
00292 #endif // OROBLD_OS_AGNOSTIC
00293 


rtt
Author(s): RTT Developers
autogenerated on Fri Sep 9 2016 04:01:52