add fsm checker by Gabriel Matni

[lttv.git] / contrib / fsm_checker / RT_CHECK / realtime.c

diff --git a/contrib/fsm_checker/RT_CHECK/realtime.c b/contrib/fsm_checker/RT_CHECK/realtime.c
new file mode 100755 (executable)
index 0000000..2c60a91
--- /dev/null
+++ b/contrib/fsm_checker/RT_CHECK/realtime.c
@@ -0,0 +1,49 @@
+#include <glib.h>
+#include <string.h>
+struct realtime * realtime_Init(int pid, long period_sec, long period_nsec, long running_time_sec, long running_time_nsec){
+       struct realtime *this = (struct realtime *) g_malloc(sizeof(struct realtime)); 
+       realtimeContext_Init(&this->_fsm, this);
+       this->pid = pid;
+       this->period_sec=period_sec;
+       this->period_nsec=period_nsec;
+       this->running_time_sec = running_time_sec;
+       this->running_time_nsec = running_time_nsec;
+       this->schedin_ts_sec=0;//needed for first event
+       this->schedin_ts_nsec=0;
+       return this;
+}
+void realtime_destroyfsm(struct realtime *this){
+       //remove fsm from fsm_list
+       removefsm(this);
+       g_free(this);
+}
+void realtime_warning(struct realtime *this, long ts_sec, long ts_nsec){
+       printf("WARNING: real-time process, pid %d was scheduled in after tolerable period @ %ld.%09ld.\n", this->pid, ts_sec, ts_nsec);
+}
+void realtime_report_insufficient_scheduling_time(struct realtime *this, long ts_sec, long ts_nsec){
+       printf("WARNING: real-time process, pid %d was scheduled out early @%ld.%09ld.\n", this->pid, ts_sec, ts_nsec);
+}
+int latency(struct realtime *this, long ts_sec, long ts_nsec){
+       //2 successive schedin are seperated by more than period
+       long delta_sec = ts_sec - this->schedin_ts_sec;
+       long delta_nsec = ts_nsec - this->schedin_ts_nsec;
+       if(delta_sec < this->period_sec)
+               return 0;//no latency
+       else if(delta_sec == this->period_sec)
+               if(delta_nsec < this->period_nsec)
+                       return 0;//no latency
+       return 1;
+}
+int running_enough(struct realtime *this, long ts_sec, long ts_nsec){
+       if(ts_sec - this->schedin_ts_sec > this->running_time_sec)
+               return 1;
+       else if(ts_sec - this->schedin_ts_sec == this->running_time_sec)
+               if(ts_nsec - this->running_time_nsec > this->running_time_nsec)
+                       return 1;
+       return 0;
+}
+void realtime_save_ts(struct realtime *this, long ts_sec, long ts_nsec){
+       this->schedin_ts_sec = ts_sec;
+       this->schedin_ts_nsec = ts_nsec;        
+}
+