mirror of
https://github.com/nasa/trick.git
synced 2024-12-21 06:03:10 +00:00
26dfb3a000
Moved the lock memory function to the real time sync directory. It doesn't need to be part of the RealTimeSync class either so I left the lock/unlock code in the C language calls for real time functions. refs #195
135 lines
3.6 KiB
C++
135 lines
3.6 KiB
C++
|
|
#include <stdio.h>
|
|
#include "trick/RealtimeSync.hh"
|
|
#include "trick/realtimesync_proto.h"
|
|
#include "trick/exec_proto.h"
|
|
#include "trick/message_proto.h"
|
|
#include "trick/message_type.h"
|
|
|
|
|
|
/* Global singleton pointer to the real-time synchronization */
|
|
extern Trick::RealtimeSync * the_rts ;
|
|
|
|
/*************************************************************************/
|
|
/* These routines are the "C" interface to the real-time synchronization */
|
|
/*************************************************************************/
|
|
|
|
/**
|
|
* @relates Trick::RealtimeSync
|
|
* @copydoc Trick::RealtimeSync::enable
|
|
* C wrapper for Trick::RealtimeSync::enable
|
|
*/
|
|
extern "C" int real_time_enable() {
|
|
if ( the_rts != NULL ) {
|
|
return the_rts->enable() ;
|
|
}
|
|
return(0) ;
|
|
}
|
|
|
|
/**
|
|
* @relates Trick::RealtimeSync
|
|
* @copydoc Trick::RealtimeSync::disable
|
|
* C wrapper for Trick::RealtimeSync::disable
|
|
*/
|
|
extern "C" int real_time_disable() {
|
|
if ( the_rts != NULL ) {
|
|
return the_rts->disable() ;
|
|
}
|
|
return(0) ;
|
|
}
|
|
|
|
/**
|
|
* @relates Trick::RealtimeSync
|
|
* @copydoc Trick::RealtimeSync::start_realtime
|
|
* C wrapper for Trick::RealtimeSync::start_realtime
|
|
*/
|
|
extern "C" int real_time_restart(long long ref_time ) {
|
|
if ( the_rts != NULL ) {
|
|
return the_rts->start_realtime(exec_get_software_frame() , ref_time) ;
|
|
}
|
|
return(0) ;
|
|
}
|
|
|
|
/**
|
|
* @relates Trick::RealtimeSync
|
|
@userdesc Return whether real-time synchronization is currently active.
|
|
@par Python Usage:
|
|
@code <my_int> = trick.is_real_time() @endcode
|
|
@return Trick::RealtimeSync::active (integer converted from boolean)
|
|
*/
|
|
extern "C" int is_real_time() {
|
|
if ( the_rts != NULL ) {
|
|
return((int)(the_rts->active)) ;
|
|
}
|
|
return(0) ;
|
|
}
|
|
|
|
int real_time_change_clock(Trick::Clock * in_clock ) {
|
|
if ( the_rts != NULL ) {
|
|
return the_rts->change_clock(in_clock) ;
|
|
}
|
|
return -1 ;
|
|
}
|
|
|
|
const char * real_time_clock_get_name() {
|
|
if ( the_rts != NULL ) {
|
|
return the_rts->clock_get_name() ;
|
|
}
|
|
return NULL ;
|
|
}
|
|
|
|
int real_time_change_timer(Trick::Timer * in_sleep_timer ) {
|
|
if ( the_rts != NULL ) {
|
|
return the_rts->change_timer(in_sleep_timer) ;
|
|
}
|
|
return -1 ;
|
|
}
|
|
|
|
extern "C" int real_time_set_rt_clock_ratio(double in_clock_ratio) {
|
|
return the_rts->set_rt_clock_ratio(in_clock_ratio) ;
|
|
}
|
|
|
|
// The lock memory functions are most closely related to real-time but are
|
|
// not required for syncing. Therefore keep the routines as stand
|
|
// alone C functions.
|
|
|
|
#if __linux
|
|
#include <sys/mman.h>
|
|
#include <errno.h>
|
|
#endif
|
|
|
|
extern "C" int real_time_lock_memory(int yes_no) {
|
|
/* lock or unlock memory based on yes_no parameter */
|
|
int ret = 0 ;
|
|
#if __linux
|
|
if ( yes_no ) {
|
|
if ((ret = mlockall(MCL_CURRENT | MCL_FUTURE)) != 0 ) {
|
|
perror("Error locking memory.");
|
|
message_publish(MSG_ERROR, "Error %d when requesting memory lock.\n", errno);
|
|
} else {
|
|
message_publish(MSG_INFO, "Sim locked memory\n");
|
|
}
|
|
} else {
|
|
if ( (ret = munlockall()) != 0 ) {
|
|
perror("Error unlocking memory.");
|
|
message_publish(MSG_ERROR, "Error %d when requesting memory unlock.\n", errno);
|
|
} else {
|
|
message_publish(MSG_INFO, "Sim unlocked memory\n");
|
|
}
|
|
|
|
}
|
|
#endif
|
|
#if __APPLE__
|
|
(void)yes_no ;
|
|
message_publish(MSG_WARNING, "Warning: Trick on Darwin does not yet support memory locking.\n");
|
|
#endif
|
|
return ret ;
|
|
}
|
|
|
|
|
|
extern "C" int exec_set_lock_memory(int yes_no) {
|
|
message_publish(MSG_WARNING, "Warning: exec_set_lock_memory deprecated. Use real_time_lock_memory (auto-called)\n");
|
|
return real_time_lock_memory(yes_no) ;
|
|
}
|
|
|