- Fix: avoid infinite loop on mulitcast read thread if no data to read

Pre-ci test passed git-svn-id: http://svn.eurecom.fr/openair4G/trunk@4000 818b1a75-f10b-46b9-bf7c-635c3b92a50f
2013-06-25 09:05:02 +00:00
commit 56c66c09aa
4111 changed files with 2133103 additions and 0 deletions
@@ -0,0 +1,81 @@
+#ifdef USER_MODE
+#include <time.h>
+#include <stdlib.h>
+#else
+#include <asm/io.h>
+#include <asm/rtai.h>
+#endif
+#ifdef RTAI_ENABLED
+#include <rtai.h>
+#include <rtai_sched.h>
+#define time(x) (unsigned int)(rt_get_time_ns())
+#endif
+
+unsigned int s0, s1, s2, b;
+
+//----------------------------------------------
+//
+/*!
+*/
+//
+
+inline unsigned int taus(void) {
+
+  b = (((s0 << 13) ^ s0) >> 19);
+  s0 = (((s0 & 0xFFFFFFFE) << 12)^  b);
+  b = (((s1 << 2) ^ s1) >> 25);
+  s1 = (((s1 & 0xFFFFFFF8) << 4)^  b);
+  b = (((s2 << 3) ^ s2) >> 11);
+  s2 = (((s2 & 0xFFFFFFF0) << 17)^  b);
+  return s0 ^ s1 ^ s2;
+}
+
+void set_taus_seed(unsigned int seed_init) {
+
+#ifdef USER_MODE
+  struct drand48_data buffer;
+  unsigned long result = 0;
+#endif
+
+  if (seed_init == 0) {
+    s0 = (unsigned int)time(NULL); 
+    s1 = (unsigned int)time(NULL); 
+    s2 = (unsigned int)time(NULL); 
+  }
+  else {
+#ifndef USER_MODE
+    s0 = (unsigned int)0x1e23d852;
+    s1 = (unsigned int)0x81f38a1c;
+    s2 = (unsigned int)0xfe1a133e;
+#else
+    /* Use reentrant version of rand48 to ensure that no conflicts with other generators occur */
+    srand48_r((long int)seed_init, &buffer);
+    mrand48_r(&buffer, (long int *)&result);
+    s0 = result;
+    mrand48_r(&buffer, (long int *)&result);
+    s1 = result;
+    mrand48_r(&buffer, (long int *)&result);
+    s2 = result;
+#endif
+  }
+}
+
+#ifdef MAIN
+
+main() {
+
+  unsigned int i,rand;
+
+  set_taus_seed();
+
+  for (i=0;i<10;i++){
+
+    rand = taus();
+    printf("%u\n",rand);
+
+  }
+}
+#endif //MAIN
+
+  
+