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135 lines
3.6 KiB
C++
135 lines
3.6 KiB
C++
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#include <stdio.h>
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#include "trick/RealtimeSync.hh"
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#include "trick/realtimesync_proto.h"
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#include "trick/exec_proto.h"
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#include "trick/message_proto.h"
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#include "trick/message_type.h"
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/* Global singleton pointer to the real-time synchronization */
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extern Trick::RealtimeSync * the_rts ;
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/*************************************************************************/
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/* These routines are the "C" interface to the real-time synchronization */
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/*************************************************************************/
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/**
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* @relates Trick::RealtimeSync
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* @copydoc Trick::RealtimeSync::enable
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* C wrapper for Trick::RealtimeSync::enable
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*/
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extern "C" int real_time_enable() {
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if ( the_rts != NULL ) {
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return the_rts->enable() ;
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}
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return(0) ;
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}
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/**
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* @relates Trick::RealtimeSync
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* @copydoc Trick::RealtimeSync::disable
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* C wrapper for Trick::RealtimeSync::disable
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*/
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extern "C" int real_time_disable() {
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if ( the_rts != NULL ) {
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return the_rts->disable() ;
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}
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return(0) ;
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}
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/**
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* @relates Trick::RealtimeSync
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* @copydoc Trick::RealtimeSync::start_realtime
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* C wrapper for Trick::RealtimeSync::start_realtime
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*/
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extern "C" int real_time_restart(long long ref_time ) {
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if ( the_rts != NULL ) {
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return the_rts->start_realtime(exec_get_software_frame() , ref_time) ;
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}
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return(0) ;
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}
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/**
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* @relates Trick::RealtimeSync
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@userdesc Return whether real-time synchronization is currently active.
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@par Python Usage:
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@code <my_int> = trick.is_real_time() @endcode
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@return Trick::RealtimeSync::active (integer converted from boolean)
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*/
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extern "C" int is_real_time() {
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if ( the_rts != NULL ) {
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return((int)(the_rts->active)) ;
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}
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return(0) ;
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}
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int real_time_change_clock(Trick::Clock * in_clock ) {
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if ( the_rts != NULL ) {
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return the_rts->change_clock(in_clock) ;
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}
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return -1 ;
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}
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const char * real_time_clock_get_name() {
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if ( the_rts != NULL ) {
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return the_rts->clock_get_name() ;
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}
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return NULL ;
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}
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int real_time_change_timer(Trick::Timer * in_sleep_timer ) {
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if ( the_rts != NULL ) {
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return the_rts->change_timer(in_sleep_timer) ;
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}
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return -1 ;
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}
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extern "C" int real_time_set_rt_clock_ratio(double in_clock_ratio) {
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return the_rts->set_rt_clock_ratio(in_clock_ratio) ;
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}
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// The lock memory functions are most closely related to real-time but are
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// not required for syncing. Therefore keep the routines as stand
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// alone C functions.
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#if __linux
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#include <sys/mman.h>
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#include <errno.h>
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#endif
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extern "C" int real_time_lock_memory(int yes_no) {
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/* lock or unlock memory based on yes_no parameter */
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int ret = 0 ;
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#if __linux
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if ( yes_no ) {
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if ((ret = mlockall(MCL_CURRENT | MCL_FUTURE)) != 0 ) {
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perror("Error locking memory.");
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message_publish(MSG_ERROR, "Error %d when requesting memory lock.\n", errno);
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} else {
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message_publish(MSG_INFO, "Sim locked memory\n");
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}
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} else {
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if ( (ret = munlockall()) != 0 ) {
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perror("Error unlocking memory.");
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message_publish(MSG_ERROR, "Error %d when requesting memory unlock.\n", errno);
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} else {
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message_publish(MSG_INFO, "Sim unlocked memory\n");
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}
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}
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#endif
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#if __APPLE__
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(void)yes_no ;
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message_publish(MSG_WARNING, "Warning: Trick on Darwin does not yet support memory locking.\n");
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#endif
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return ret ;
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}
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extern "C" int exec_set_lock_memory(int yes_no) {
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message_publish(MSG_WARNING, "Warning: exec_set_lock_memory deprecated. Use real_time_lock_memory (auto-called)\n");
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return real_time_lock_memory(yes_no) ;
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}
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