X-Git-Url: https://git.martlubbers.net/?a=blobdiff_plain;f=mart%2Fex10%2Fex10a.c;h=cf1272f712afe7540c10da524c8284b0007fe36f;hb=b0bd8f724348ba4ec1adb341bc37ab556d7abb10;hp=e69de29bb2d1d6434b8b29ae775ad8c2e48c5391;hpb=52221a5de2943cbe89b14a6dae19ca5276823fc7;p=des2015.git

diff --git a/mart/ex10/ex10a.c b/mart/ex10/ex10a.c
index e69de29..cf1272f 100644
--- a/mart/ex10/ex10a.c
+++ b/mart/ex10/ex10a.c
@@ -0,0 +1,40 @@
+#include <stdio.h>
+#include <signal.h>
+#include <unistd.h>
+#include <sys/mman.h>
+
+#include <native/task.h>
+#include <native/timer.h>
+
+#include <rtdk.h>
+
+#define SAMPLES 10000
+RT_TASK task;
+
+RTIME times[SAMPLES];
+
+void taskf(void *arg)
+{
+	rt_task_set_periodic(NULL, TM_NOW, 1e5);
+
+	unsigned int i;
+	for(i = 0; i<SAMPLES; i++){
+		times[i] = rt_timer_read();	
+		rt_task_wait_period(NULL);
+	}
+	FILE *file;
+	file = fopen("ex10ab.csv", "w");
+	for(i = 0; i<SAMPLES-1; i++){
+		fprintf(file, "%u,%llu\n", i, times[i+1]-times[i]);
+	}
+	fclose(file);
+}
+
+int main(int argc, char* argv[])
+{
+	rt_print_auto_init(1);
+	mlockall(MCL_CURRENT | MCL_FUTURE);
+	rt_task_create(&task, NULL, 0, 50, 0);
+	rt_task_start(&task, &taskf, NULL);
+	sleep(2);
+}