Exclusively use OAI_RNGSEED env variable everywhere

Hide normal table initialization of Ziggurat generator from outside to
force the usage of randominit() for RNG initialization. In this step,
remove the randominit() seed parameter and only rely on OAI_RNGSEED for
a consistent RNG initialization, as this parameter was used differently
("0" as fixed number or to force a random seed).

Now, only use OAI_RNGSEED env variable to force the usage of a fixed
seed.

openair1/PHY/CODING/TESTBENCH/ldpctest.c

@@ -438,7 +438,7 @@ int main(int argc, char *argv[])
   int n_trials = 1;
   double SNR_step = 0.1;
 
-  randominit(0);
+  randominit();
   int test_uncoded = 0;
   n_iter_stats_t dec_iter[400] = {0};
 

openair1/PHY/CODING/TESTBENCH/ltetest.c

@@ -72,7 +72,7 @@ void lte_param_init(unsigned char N_tx, unsigned char N_rx,unsigned char transmi
   PHY_vars_UE = malloc(sizeof(PHY_VARS_UE));
   mac_xface = malloc(sizeof(MAC_xface));
 
-  randominit(0);
+  randominit();
   set_taus_seed(0);
 
   lte_frame_parms = &(PHY_vars_eNB->lte_frame_parms);
@@ -367,7 +367,7 @@ int main(int argc, char *argv[])
   int num_pdcch_symbols = 1;
   int subframe = 6;
 
-  randominit(0);
+  randominit();
   logInit();
   lte_param_init(1,1,1,0,0,3);
 

openair1/PHY/CODING/TESTBENCH/pdcch_test.c

@@ -47,7 +47,7 @@ void lte_param_init(unsigned char N_tx, unsigned char N_rx)
   PHY_config = malloc(sizeof(PHY_CONFIG));
   mac_xface = malloc(sizeof(MAC_xface));
 
-  randominit(0);
+  randominit();
   set_taus_seed(0);
 
   lte_frame_parms = &(PHY_config->lte_frame_parms);
@@ -241,8 +241,7 @@ int main(int argc, char *argv[])
   PHY_vars = malloc(sizeof(PHY_VARS));
   mac_xface = malloc(sizeof(MAC_xface));
 
-
-  randominit(0);
+  randominit();
   set_taus_seed(0);
 
   ccodelte_init();

openair1/PHY/CODING/TESTBENCH/polartest.c

@@ -125,7 +125,7 @@ int main(int argc, char *argv[])
   cpu_meas_enabled = 1;
   reset_meas(&timeEncoder);
   reset_meas(&timeDecoder);
-  randominit(0);
+  randominit();
   crcTableInit();
 
   if (polarMessageType == 0) { // PBCH

openair1/PHY/CODING/TESTBENCH/smallblocktest.c

@@ -13,7 +13,7 @@ int main(int argc, char *argv[])
   cpu_meas_enabled = 1;
   reset_meas(&timeEncoder);
   reset_meas(&timeDecoder);
-  randominit(0);
+  randominit();
 
   int ret = 1;
   int arguments, iterations = 1000, messageLength = 11;

openair1/PHY/INIT/lte_param_init.c

@@ -77,7 +77,7 @@ void lte_param_init(PHY_VARS_eNB **eNBp,
   eNB->RU_list[0] = ru;
   ru->num_eNB=1;
   srand(0);
-  randominit(0);
+  randominit();
   set_taus_seed(0);
   frame_parms = &(eNB->frame_parms);
   frame_parms->N_RB_DL            = N_RB_DL;   //50 for 10MHz and 25 for 5 MHz

openair1/PHY/TOOLS/tests/test_dft.c

@@ -70,6 +70,7 @@ void math_dft(cd_t *in, cd_t *out, int len)
 int main(void)
 {
   int ret = 0;
+  randominit();
   load_dftslib();
   c16_t *d16 = malloc16(12 * dftFtab[sizeofArray(dftFtab) - 1].size * sizeof(*d16));
   c16_t *o16 = malloc16(12 * dftFtab[sizeofArray(dftFtab) - 1].size * sizeof(*d16));