X-Git-Url: http://sraa.de/git/?a=blobdiff_plain;f=dol%2Fexamples%2Fexample5%2Fsrc%2Fgenerator.c;fp=dol%2Fexamples%2Fexample5%2Fsrc%2Fgenerator.c;h=9d160cfe7b68ddd11f6a3ba95d6bc613d6f9e5d3;hb=8c411cf24ed0eb889191aaeafd8fa1e69081df42;hp=0000000000000000000000000000000000000000;hpb=dea7a4fb1ed110d3ce6e6d9255103d724bd66c0e;p=jump.git

diff --git a/dol/examples/example5/src/generator.c b/dol/examples/example5/src/generator.c
new file mode 100644
index 0000000..9d160cf
--- /dev/null
+++ b/dol/examples/example5/src/generator.c
@@ -0,0 +1,47 @@
+#include <stdio.h>
+
+#include "generator.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 generator_init(DOLProcess *p)
+{
+  ; //nothing to be done here
+}
+
+
+int generator_fire(DOLProcess *p)
+{
+  CREATEPORTVAR(output_port);
+
+  srand(0); //initialize random number generator
+
+  //generate input coefficients and write them to output ports
+  for (p->local->index = 0;
+       p->local->index < NUMBER_OF_FFT_POINTS;
+       p->local->index++) {
+    p->local->coeffs[p->local->index].real = (float)getRandomNumber(-9, 9);
+    p->local->coeffs[p->local->index].imag = (float)getRandomNumber(-9, 9);
+
+    CREATEPORT(output_port, PORT_INPUT_COEFFICIENTS, 1,
+            p->local->index, NUMBER_OF_FFT_POINTS);
+    printf("%15s: Write to input_coefficients_%d: %9f + j * %9f\n",
+           "input_generator", p->local->index,
+           p->local->coeffs[p->local->index].real,
+           p->local->coeffs[p->local->index].imag);
+    DOL_write((void*)output_port, &(p->local->coeffs[p->local->index]),
+              sizeof(ComplexNumber), p);
+  }
+
+  DOL_detach(p);
+  return -1;
+}
+