X-Git-Url: http://sraa.de/git/?a=blobdiff_plain;f=dol%2Fexamples%2Fexample7%2Fsrc%2Fproducer.c;fp=dol%2Fexamples%2Fexample7%2Fsrc%2Fproducer.c;h=89f2aaa795a29b2ae1846256dc1ac459a1199e41;hb=8c411cf24ed0eb889191aaeafd8fa1e69081df42;hp=0000000000000000000000000000000000000000;hpb=dea7a4fb1ed110d3ce6e6d9255103d724bd66c0e;p=jump.git

diff --git a/dol/examples/example7/src/producer.c b/dol/examples/example7/src/producer.c
new file mode 100644
index 0000000..89f2aaa
--- /dev/null
+++ b/dol/examples/example7/src/producer.c
@@ -0,0 +1,50 @@
+#include <stdio.h>
+#include <string.h>
+
+#include "producer.h"
+
+/**
+ * Returns a random integer in the range between lower_bound and
+ * upper_bound, where the bounding values are included in the interval.
+ */
+int getRandomNumber(int lower_bound, int upper_bound)
+{
+  return (rand() % (upper_bound - lower_bound + 1)) + lower_bound;
+}
+
+
+void producer_init(DOLProcess *p)
+{
+  printf("init producer.\n");
+}
+
+
+int producer_fire(DOLProcess *p)
+{
+  srand(0); //initialize random number generator
+
+  //generate input samples and display them
+  printf("producer: samples = { ");
+
+  for (p->local->index = 0; p->local->index < NUMBER_OF_SAMPLES; p->local->index++) {
+    p->local->sample[p->local->index] = (float) getRandomNumber(-9, 9);
+    if (p->local->index < NUMBER_OF_SAMPLES - 1) {
+      printf("%+3.1f, ", p->local->sample[p->local->index]);
+    }
+    else {
+      printf("%+3.1f }\n", p->local->sample[p->local->index]);
+    }
+  }
+
+  //write samples to output port
+  for (p->local->index = 0; p->local->index < NUMBER_OF_SAMPLES; p->local->index++) {
+    printf("%8s: Write sample[%02d]: %+6.4f\n",
+           "producer", p->local->index, p->local->sample[p->local->index]);
+    DOL_write((void*)PORT_OUT, &(p->local->sample[p->local->index]),
+            sizeof(float), p);
+  }
+
+  DOL_detach(p);
+  return -1;
+}
+