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/*******************************************************************************
OpenAirInterface
Copyright(c) 1999 - 2014 Eurecom
OpenAirInterface is free software: you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation, either version 3 of the License, or
(at your option) any later version.
OpenAirInterface is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with OpenAirInterface.The full GNU General Public License is
included in this distribution in the file called "COPYING". If not,
see <http://www.gnu.org/licenses/>.
Contact Information
OpenAirInterface Admin: openair_admin@eurecom.fr
OpenAirInterface Tech : openair_tech@eurecom.fr
OpenAirInterface Dev : openair4g-devel@lists.eurecom.fr
Address : Eurecom, Compus SophiaTech 450, route des chappes, 06451 Biot, France.
*******************************************************************************/
/*! \file enb_agent_mac.c
* \brief enb agent message handler for MAC layer
* \author Navid Nikaein and Xenofon Foukas
* \date 2016
* \version 0.1
*/
#include "enb_agent_mac.h"
#include "enb_agent_extern.h"
#include "enb_agent_common.h"
#include "enb_agent_mac_internal.h"
#include "log.h"
/*Flags showing if a mac agent has already been registered*/
unsigned int mac_agent_registered[NUM_MAX_ENB];
/*Array containing the Agent-MAC interfaces*/
AGENT_MAC_xface *agent_mac_xface[NUM_MAX_ENB];
int enb_agent_mac_handle_stats(mid_t mod_id, const void *params, Protocol__ProgranMessage **msg){
// TODO: Must deal with sanitization of input
// TODO: Must check if RNTIs and cell ids of the request actually exist
// TODO: Must resolve conflicts among stats requests
int i;
void *buffer;
int size;
err_code_t err_code;
xid_t xid;
uint32_t usec_interval, sec_interval;
//TODO: We do not deal with multiple CCs at the moment and eNB id is 0
int cc_id = 0;
int enb_id = mod_id;
//eNB_MAC_INST *eNB = &eNB_mac_inst[enb_id];
//UE_list_t *eNB_UE_list= &eNB->UE_list;
report_config_t report_config;
uint32_t ue_flags = 0;
uint32_t c_flags = 0;
Protocol__ProgranMessage *input = (Protocol__ProgranMessage *)params;
Protocol__PrpStatsRequest *stats_req = input->stats_request_msg;
xid = (stats_req->header)->xid;
// Check the type of request that is made
switch(stats_req->body_case) {
case PROTOCOL__PRP_STATS_REQUEST__BODY_COMPLETE_STATS_REQUEST: ;
Protocol__PrpCompleteStatsRequest *comp_req = stats_req->complete_stats_request;
if (comp_req->report_frequency == PROTOCOL__PRP_STATS_REPORT_FREQ__PRSRF_OFF) {
/*Disable both periodic and continuous updates*/
enb_agent_disable_cont_mac_stats_update(mod_id);
enb_agent_destroy_timer_by_task_id(xid);
*msg = NULL;
return 0;
} else { //One-off, periodical or continuous reporting
//Set the proper flags
ue_flags = comp_req->ue_report_flags;
c_flags = comp_req->cell_report_flags;
//Create a list of all eNB RNTIs and cells
//Set the number of UEs and create list with their RNTIs stats configs
report_config.nr_ue = get_num_ues(mod_id); //eNB_UE_list->num_UEs
report_config.ue_report_type = (ue_report_type_t *) malloc(sizeof(ue_report_type_t) * report_config.nr_ue);
if (report_config.ue_report_type == NULL) {
// TODO: Add appropriate error code
err_code = -100;
goto error;
}
for (i = 0; i < report_config.nr_ue; i++) {
report_config.ue_report_type[i].ue_rnti = get_ue_crnti(enb_id, i); //eNB_UE_list->eNB_UE_stats[UE_PCCID(enb_id,i)][i].crnti;
report_config.ue_report_type[i].ue_report_flags = ue_flags;
}
//Set the number of CCs and create a list with the cell stats configs
report_config.nr_cc = MAX_NUM_CCs;
report_config.cc_report_type = (cc_report_type_t *) malloc(sizeof(cc_report_type_t) * report_config.nr_cc);
if (report_config.cc_report_type == NULL) {
// TODO: Add appropriate error code
err_code = -100;
goto error;
}
for (i = 0; i < report_config.nr_cc; i++) {
//TODO: Must fill in the proper cell ids
report_config.cc_report_type[i].cc_id = i;
report_config.cc_report_type[i].cc_report_flags = c_flags;
}
/* Check if request was periodical */
if (comp_req->report_frequency == PROTOCOL__PRP_STATS_REPORT_FREQ__PRSRF_PERIODICAL) {
/* Create a one off progran message as an argument for the periodical task */
Protocol__ProgranMessage *timer_msg;
stats_request_config_t request_config;
request_config.report_type = PROTOCOL__PRP_STATS_TYPE__PRST_COMPLETE_STATS;
request_config.report_frequency = PROTOCOL__PRP_STATS_REPORT_FREQ__PRSRF_ONCE;
request_config.period = 0;
request_config.config = &report_config;
enb_agent_mac_stats_request(enb_id, xid, &request_config, &timer_msg);
/* Create a timer */
long timer_id = 0;
enb_agent_timer_args_t *timer_args;
timer_args = malloc(sizeof(enb_agent_timer_args_t));
memset (timer_args, 0, sizeof(enb_agent_timer_args_t));
timer_args->mod_id = enb_id;
timer_args->msg = timer_msg;
/*Convert subframes to usec time*/
usec_interval = 1000*comp_req->sf;
sec_interval = 0;
/*add seconds if required*/
if (usec_interval >= 1000*1000) {
sec_interval = usec_interval/(1000*1000);
usec_interval = usec_interval%(1000*1000);
}
enb_agent_create_timer(sec_interval, usec_interval, ENB_AGENT_DEFAULT, enb_id, ENB_AGENT_TIMER_TYPE_PERIODIC, xid, enb_agent_handle_timed_task,(void*) timer_args, &timer_id);
} else if (comp_req->report_frequency == PROTOCOL__PRP_STATS_REPORT_FREQ__PRSRF_CONTINUOUS) {
/*If request was for continuous updates, disable the previous configuration and
set up a new one*/
enb_agent_disable_cont_mac_stats_update(mod_id);
stats_request_config_t request_config;
request_config.report_type = PROTOCOL__PRP_STATS_TYPE__PRST_COMPLETE_STATS;
request_config.report_frequency = PROTOCOL__PRP_STATS_REPORT_FREQ__PRSRF_ONCE;
request_config.period = 0;
request_config.config = &report_config;
enb_agent_enable_cont_mac_stats_update(enb_id, xid, &request_config);
}
}
break;
case PROTOCOL__PRP_STATS_REQUEST__BODY_CELL_STATS_REQUEST:;
Protocol__PrpCellStatsRequest *cell_req = stats_req->cell_stats_request;
// UE report config will be blank
report_config.nr_ue = 0;
report_config.ue_report_type = NULL;
report_config.nr_cc = cell_req->n_cell;
report_config.cc_report_type = (cc_report_type_t *) malloc(sizeof(cc_report_type_t) * report_config.nr_cc);
if (report_config.cc_report_type == NULL) {
// TODO: Add appropriate error code
err_code = -100;
goto error;
}
for (i = 0; i < report_config.nr_cc; i++) {
//TODO: Must fill in the proper cell ids
report_config.cc_report_type[i].cc_id = cell_req->cell[i];
report_config.cc_report_type[i].cc_report_flags = cell_req->flags;
}
break;
case PROTOCOL__PRP_STATS_REQUEST__BODY_UE_STATS_REQUEST:;
Protocol__PrpUeStatsRequest *ue_req = stats_req->ue_stats_request;
// Cell report config will be blank
report_config.nr_cc = 0;
report_config.cc_report_type = NULL;
report_config.nr_ue = ue_req->n_rnti;
report_config.ue_report_type = (ue_report_type_t *) malloc(sizeof(ue_report_type_t) * report_config.nr_ue);
if (report_config.ue_report_type == NULL) {
// TODO: Add appropriate error code
err_code = -100;
goto error;
}
for (i = 0; i < report_config.nr_ue; i++) {
report_config.ue_report_type[i].ue_rnti = ue_req->rnti[i];
report_config.ue_report_type[i].ue_report_flags = ue_req->flags;
}
break;
default:
//TODO: Add appropriate error code
err_code = -100;
goto error;
}
if (enb_agent_mac_stats_reply(enb_id, xid, &report_config, msg) < 0 ){
err_code = PROTOCOL__PROGRAN_ERR__MSG_BUILD;
goto error;
}
free(report_config.ue_report_type);
free(report_config.cc_report_type);
return 0;
error :
LOG_E(ENB_AGENT, "errno %d occured\n", err_code);
return err_code;
}
int enb_agent_mac_stats_request(mid_t mod_id,
xid_t xid,
const stats_request_config_t *report_config,
Protocol__ProgranMessage **msg) {
Protocol__PrpHeader *header;
int i;
if (prp_create_header(xid, PROTOCOL__PRP_TYPE__PRPT_STATS_REQUEST, &header) != 0)
goto error;
Protocol__PrpStatsRequest *stats_request_msg;
stats_request_msg = malloc(sizeof(Protocol__PrpStatsRequest));
if(stats_request_msg == NULL)
goto error;
protocol__prp_stats_request__init(stats_request_msg);
stats_request_msg->header = header;
stats_request_msg->type = report_config->report_type;
stats_request_msg->has_type = 1;
switch (report_config->report_type) {
case PROTOCOL__PRP_STATS_TYPE__PRST_COMPLETE_STATS:
stats_request_msg->body_case = PROTOCOL__PRP_STATS_REQUEST__BODY_COMPLETE_STATS_REQUEST;
Protocol__PrpCompleteStatsRequest *complete_stats;
complete_stats = malloc(sizeof(Protocol__PrpCompleteStatsRequest));
if(complete_stats == NULL)
goto error;
protocol__prp_complete_stats_request__init(complete_stats);
complete_stats->report_frequency = report_config->report_frequency;
complete_stats->has_report_frequency = 1;
complete_stats->sf = report_config->period;
complete_stats->has_sf = 1;
complete_stats->has_cell_report_flags = 1;
complete_stats->has_ue_report_flags = 1;
if (report_config->config->nr_cc > 0) {
complete_stats->cell_report_flags = report_config->config->cc_report_type[0].cc_report_flags;
}
if (report_config->config->nr_ue > 0) {
complete_stats->ue_report_flags = report_config->config->ue_report_type[0].ue_report_flags;
}
stats_request_msg->complete_stats_request = complete_stats;
break;
case PROTOCOL__PRP_STATS_TYPE__PRST_CELL_STATS:
stats_request_msg->body_case = PROTOCOL__PRP_STATS_REQUEST__BODY_CELL_STATS_REQUEST;
Protocol__PrpCellStatsRequest *cell_stats;
cell_stats = malloc(sizeof(Protocol__PrpCellStatsRequest));
if(cell_stats == NULL)
goto error;
protocol__prp_cell_stats_request__init(cell_stats);
cell_stats->n_cell = report_config->config->nr_cc;
cell_stats->has_flags = 1;
if (cell_stats->n_cell > 0) {
uint32_t *cells;
cells = (uint32_t *) malloc(sizeof(uint32_t)*cell_stats->n_cell);
for (i = 0; i < cell_stats->n_cell; i++) {
cells[i] = report_config->config->cc_report_type[i].cc_id;
}
cell_stats->cell = cells;
cell_stats->flags = report_config->config->cc_report_type[i].cc_report_flags;
}
stats_request_msg->cell_stats_request = cell_stats;
break;
case PROTOCOL__PRP_STATS_TYPE__PRST_UE_STATS:
stats_request_msg->body_case = PROTOCOL__PRP_STATS_REQUEST__BODY_UE_STATS_REQUEST;
Protocol__PrpUeStatsRequest *ue_stats;
ue_stats = malloc(sizeof(Protocol__PrpUeStatsRequest));
if(ue_stats == NULL)
goto error;
protocol__prp_ue_stats_request__init(ue_stats);
ue_stats->n_rnti = report_config->config->nr_ue;
ue_stats->has_flags = 1;
if (ue_stats->n_rnti > 0) {
uint32_t *ues;
ues = (uint32_t *) malloc(sizeof(uint32_t)*ue_stats->n_rnti);
for (i = 0; i < ue_stats->n_rnti; i++) {
ues[i] = report_config->config->ue_report_type[i].ue_rnti;
}
ue_stats->rnti = ues;
ue_stats->flags = report_config->config->ue_report_type[i].ue_report_flags;
}
stats_request_msg->ue_stats_request = ue_stats;
break;
default:
goto error;
}
*msg = malloc(sizeof(Protocol__ProgranMessage));
if(*msg == NULL)
goto error;
protocol__progran_message__init(*msg);
(*msg)->msg_case = PROTOCOL__PROGRAN_MESSAGE__MSG_STATS_REQUEST_MSG;
(*msg)->msg_dir = PROTOCOL__PROGRAN_DIRECTION__INITIATING_MESSAGE;
(*msg)->stats_request_msg = stats_request_msg;
return 0;
error:
// TODO: Need to make proper error handling
if (header != NULL)
free(header);
if (stats_request_msg != NULL)
free(stats_request_msg);
if(*msg != NULL)
free(*msg);
//LOG_E(MAC, "%s: an error occured\n", __FUNCTION__);
return -1;
}
int enb_agent_mac_destroy_stats_request(Protocol__ProgranMessage *msg) {
if(msg->msg_case != PROTOCOL__PROGRAN_MESSAGE__MSG_STATS_REQUEST_MSG)
goto error;
free(msg->stats_request_msg->header);
if (msg->stats_request_msg->body_case == PROTOCOL__PRP_STATS_REQUEST__BODY_CELL_STATS_REQUEST) {
free(msg->stats_request_msg->cell_stats_request->cell);
}
if (msg->stats_request_msg->body_case == PROTOCOL__PRP_STATS_REQUEST__BODY_UE_STATS_REQUEST) {
free(msg->stats_request_msg->ue_stats_request->rnti);
}
free(msg->stats_request_msg);
free(msg);
return 0;
error:
//LOG_E(MAC, "%s: an error occured\n", __FUNCTION__);
return -1;
}
int enb_agent_mac_stats_reply(mid_t mod_id,
xid_t xid,
const report_config_t *report_config,
Protocol__ProgranMessage **msg) {
Protocol__PrpHeader *header;
int i, j, k;
int cc_id = 0;
int enb_id = mod_id;
//eNB_MAC_INST *eNB = &eNB_mac_inst[enb_id];
//UE_list_t *eNB_UE_list= &eNB->UE_list;
if (prp_create_header(xid, PROTOCOL__PRP_TYPE__PRPT_STATS_REPLY, &header) != 0)
goto error;
Protocol__PrpStatsReply *stats_reply_msg;
stats_reply_msg = malloc(sizeof(Protocol__PrpStatsReply));
if (stats_reply_msg == NULL)
goto error;
protocol__prp_stats_reply__init(stats_reply_msg);
stats_reply_msg->header = header;
stats_reply_msg->n_ue_report = report_config->nr_ue;
stats_reply_msg->n_cell_report = report_config->nr_cc;
Protocol__PrpUeStatsReport **ue_report;
Protocol__PrpCellStatsReport **cell_report;
/* Allocate memory for list of UE reports */
if (report_config->nr_ue > 0) {
ue_report = malloc(sizeof(Protocol__PrpUeStatsReport *) * report_config->nr_ue);
if (ue_report == NULL)
goto error;
for (i = 0; i < report_config->nr_ue; i++) {
ue_report[i] = malloc(sizeof(Protocol__PrpUeStatsReport));
protocol__prp_ue_stats_report__init(ue_report[i]);
ue_report[i]->rnti = report_config->ue_report_type[i].ue_rnti;
ue_report[i]->has_rnti = 1;
ue_report[i]->flags = report_config->ue_report_type[i].ue_report_flags;
ue_report[i]->has_flags = 1;
/* Check the types of reports that need to be constructed based on flag values */
/* Check flag for creation of buffer status report */
if (report_config->ue_report_type[i].ue_report_flags & PROTOCOL__PRP_UE_STATS_TYPE__PRUST_BSR) {
//TODO: Create a report for each LCG (4 elements). See prp_ue_stats_report of
// progRAN specifications for more details
ue_report[i]->n_bsr = 4;
uint32_t *elem;
elem = (uint32_t *) malloc(sizeof(uint32_t)*ue_report[i]->n_bsr);
if (elem == NULL)
goto error;
for (j = 0; j++; j < ue_report[i]->n_bsr) {
// Set the actual BSR for LCG j of the current UE
// NN: we need to know the cc_id here, consider the first one
elem[j] = get_ue_bsr (enb_id, i, j); //eNB_UE_list->UE_template[UE_PCCID(enb_id,i)][i].bsr_info[j];
}
ue_report[i]->bsr = elem;
}
/* Check flag for creation of PRH report */
if (report_config->ue_report_type[i].ue_report_flags & PROTOCOL__PRP_UE_STATS_TYPE__PRUST_PRH) {
// TODO: Fill in the actual power headroom value for the RNTI
ue_report[i]->phr = get_ue_phr (enb_id, i); // eNB_UE_list->UE_template[UE_PCCID(enb_id,i)][i].phr_info;
ue_report[i]->has_phr = 1;
}
/* Check flag for creation of RLC buffer status report */
if (report_config->ue_report_type[i].ue_report_flags & PROTOCOL__PRP_UE_STATS_TYPE__PRUST_RLC_BS) {
// TODO: Fill in the actual RLC buffer status reports
ue_report[i]->n_rlc_report = 1; // Set this to the number of LCs for this UE
Protocol__PrpRlcBsr ** rlc_reports;
rlc_reports = malloc(sizeof(Protocol__PrpRlcBsr) * ue_report[i]->n_rlc_report);
if (rlc_reports == NULL)
goto error;
// Fill the buffer status report for each logical channel of the UE
// NN: see LAYER2/openair2_proc.c for rlc status
for (j = 0; j < ue_report[i]->n_rlc_report; j++) {
rlc_reports[j] = malloc(sizeof(Protocol__PrpRlcBsr));
if (rlc_reports[j] == NULL)
goto error;
protocol__prp_rlc_bsr__init(rlc_reports[j]);
//TODO:Set logical channel id
rlc_reports[j]->lc_id = 1;
rlc_reports[j]->has_lc_id = 1;
//TODO:Set tx queue size in bytes
rlc_reports[j]->tx_queue_size = 10;
rlc_reports[j]->has_tx_queue_size = 1;
//TODO:Set tx queue head of line delay in ms
rlc_reports[j]->tx_queue_hol_delay = 100;
rlc_reports[j]->has_tx_queue_hol_delay = 1;
//TODO:Set retransmission queue size in bytes
rlc_reports[j]->retransmission_queue_size = 10;
rlc_reports[j]->has_retransmission_queue_size = 1;
//TODO:Set retransmission queue head of line delay in ms
rlc_reports[j]->retransmission_queue_hol_delay = 100;
rlc_reports[j]->has_retransmission_queue_hol_delay = 1;
//TODO:Set current size of the pending message in bytes
rlc_reports[j]->status_pdu_size = 100;
rlc_reports[j]->has_status_pdu_size = 1;
}
// Add RLC buffer status reports to the full report
if (ue_report[i]->n_rlc_report > 0)
ue_report[i]->rlc_report = rlc_reports;
}
/* Check flag for creation of MAC CE buffer status report */
if (report_config->ue_report_type[i].ue_report_flags & PROTOCOL__PRP_UE_STATS_TYPE__PRUST_MAC_CE_BS) {
// TODO: Fill in the actual MAC CE buffer status report
ue_report[i]->pending_mac_ces = -1; /* Use as bitmap. Set one or more of the
PROTOCOL__PRP_CE_TYPE__PRPCET_ values
found in stats_common.pb-c.h. See
prp_ce_type in progRAN specification */
ue_report[i]->has_pending_mac_ces = 1;
}
/* Check flag for creation of DL CQI report */
if (report_config->ue_report_type[i].ue_report_flags & PROTOCOL__PRP_UE_STATS_TYPE__PRUST_DL_CQI) {
// TODO: Fill in the actual DL CQI report for the UE based on its configuration
Protocol__PrpDlCqiReport * dl_report;
dl_report = malloc(sizeof(Protocol__PrpDlCqiReport));
if (dl_report == NULL)
goto error;
protocol__prp_dl_cqi_report__init(dl_report);
//TODO:Set the SFN and SF of the last report held in the agent.
dl_report->sfn_sn = get_sfn_sf(enb_id);
dl_report->has_sfn_sn = 1;
//TODO:Set the number of DL CQI reports for this UE. One for each CC
dl_report->n_csi_report = 1;
//TODO:Create the actual CSI reports.
Protocol__PrpDlCsi **csi_reports;
csi_reports = malloc(sizeof(Protocol__PrpDlCsi *)*dl_report->n_csi_report);
if (csi_reports == NULL)
goto error;
for (j = 0; j < dl_report->n_csi_report; j++) {
csi_reports[j] = malloc(sizeof(Protocol__PrpDlCsi));
if (csi_reports[j] == NULL)
goto error;
protocol__prp_dl_csi__init(csi_reports[j]);
//TODO: the servCellIndex for this report
csi_reports[j]->serv_cell_index = 0;
csi_reports[j]->has_serv_cell_index = 1;
//TODO: the rank indicator value for this cc
csi_reports[j]->ri = 1;
csi_reports[j]->has_ri = 1;
//TODO: the type of CSI report based on the configuration of the UE
//For this example we use type P10, which only needs a wideband value
//The full set of types can be found in stats_common.pb-c.h and
//in the progRAN specifications
csi_reports[j]->type = PROTOCOL__PRP_CSI_TYPE__PRCSIT_P10;
csi_reports[j]->has_type = 1;
csi_reports[j]->report_case = PROTOCOL__PRP_DL_CSI__REPORT_P10CSI;
Protocol__PrpCsiP10 *csi10;
csi10 = malloc(sizeof(Protocol__PrpCsiP10));
if (csi10 == NULL)
goto error;
protocol__prp_csi_p10__init(csi10);
//TODO: set the wideband value
// NN: this is also depends on cc_id
csi10->wb_cqi = get_ue_wcqi (enb_id, i); //eNB_UE_list->eNB_UE_stats[UE_PCCID(enb_id,i)][i].dl_cqi;
csi10->has_wb_cqi = 1;
//Add the type of measurements to the csi report in the proper union type
csi_reports[j]->p10csi = csi10;
}
//Add the csi reports to the full DL CQI report
dl_report->csi_report = csi_reports;
//Add the DL CQI report to the stats report
ue_report[i]->dl_cqi_report = dl_report;
}
/* Check flag for creation of paging buffer status report */
if (report_config->ue_report_type[i].ue_report_flags & PROTOCOL__PRP_UE_STATS_TYPE__PRUST_PBS) {
//TODO: Fill in the actual paging buffer status report. For this field to be valid, the RNTI
//set in the report must be a P-RNTI
Protocol__PrpPagingBufferReport *paging_report;
paging_report = malloc(sizeof(Protocol__PrpPagingBufferReport));
if (paging_report == NULL)
goto error;
protocol__prp_paging_buffer_report__init(paging_report);
//Set the number of pending paging messages
paging_report->n_paging_info = 1;
//Provide a report for each pending paging message
Protocol__PrpPagingInfo **p_info;
p_info = malloc(sizeof(Protocol__PrpPagingInfo *) * paging_report->n_paging_info);
if (p_info == NULL)
goto error;
for (j = 0; j < paging_report->n_paging_info; j++) {
p_info[j] = malloc(sizeof(Protocol__PrpPagingInfo));
if(p_info[j] == NULL)
goto error;
protocol__prp_paging_info__init(p_info[j]);
//TODO: Set paging index. This index is the same that will be used for the scheduling of the
//paging message by the controller
p_info[j]->paging_index = 10;
p_info[j]->has_paging_index = 1;
//TODO:Set the paging message size
p_info[j]->paging_message_size = 100;
p_info[j]->has_paging_message_size = 1;
//TODO: Set the paging subframe
p_info[j]->paging_subframe = 10;
p_info[j]->has_paging_subframe = 1;
//TODO: Set the carrier index for the pending paging message
p_info[j]->carrier_index = 0;
p_info[j]->has_carrier_index = 1;
}
//Add all paging info to the paging buffer rerport
paging_report->paging_info = p_info;
//Add the paging report to the UE report
ue_report[i]->pbr = paging_report;
}
/* Check flag for creation of UL CQI report */
if (report_config->ue_report_type[i].ue_report_flags & PROTOCOL__PRP_UE_STATS_TYPE__PRUST_UL_CQI) {
//Fill in the full UL CQI report of the UE
Protocol__PrpUlCqiReport *full_ul_report;
full_ul_report = malloc(sizeof(Protocol__PrpUlCqiReport));
if(full_ul_report == NULL)
goto error;
protocol__prp_ul_cqi_report__init(full_ul_report);
//TODO:Set the SFN and SF of the generated report
full_ul_report->sfn_sn = get_sfn_sf(enb_id);
full_ul_report->has_sfn_sn = 1;
//TODO:Set the number of UL measurement reports based on the types of measurements
//configured for this UE and on the servCellIndex
full_ul_report->n_cqi_meas = 1;
Protocol__PrpUlCqi **ul_report;
ul_report = malloc(sizeof(Protocol__PrpUlCqi *) * full_ul_report->n_cqi_meas);
if(ul_report == NULL)
goto error;
//Fill each UL report of the UE for each of the configured report types
for(j = 0; j++; j < full_ul_report->n_cqi_meas) {
ul_report[j] = malloc(sizeof(Protocol__PrpUlCqi));
if(ul_report[j] == NULL)
goto error;
protocol__prp_ul_cqi__init(ul_report[j]);
//TODO: Set the type of the UL report. As an example set it to SRS UL report
// See enum prp_ul_cqi_type in progRAN specification for more details
ul_report[j]->type = PROTOCOL__PRP_UL_CQI_TYPE__PRUCT_SRS;
ul_report[j]->has_type = 1;
//TODO:Set the number of SINR measurements based on the report type
//See struct prp_ul_cqi in progRAN specification for more details
ul_report[j]->n_sinr = 100;
uint32_t *sinr_meas;
sinr_meas = (uint32_t *) malloc(sizeof(uint32_t) * ul_report[j]->n_sinr);
if (sinr_meas == NULL)
goto error;
//TODO:Set the SINR measurements for the specified type
for (k = 0; k < ul_report[j]->n_sinr; k++) {
sinr_meas[k] = 10;
}
ul_report[j]->sinr = sinr_meas;
//TODO: Set the servCellIndex for this report
ul_report[j]->serv_cell_index = 0;
ul_report[j]->has_serv_cell_index = 1;
//Set the list of UL reports of this UE to the full UL report
full_ul_report->cqi_meas = ul_report;
//Add full UL CQI report to the UE report
ue_report[i]->ul_cqi_report = full_ul_report;
}
}
}
/* Add list of all UE reports to the message */
stats_reply_msg->ue_report = ue_report;
}
/* Allocate memory for list of cell reports */
if (report_config->nr_cc > 0) {
cell_report = malloc(sizeof(Protocol__PrpCellStatsReport *) * report_config->nr_cc);
if (cell_report == NULL)
goto error;
// Fill in the Cell reports
for (i = 0; i < report_config->nr_cc; i++) {
cell_report[i] = malloc(sizeof(Protocol__PrpCellStatsReport));
if(cell_report[i] == NULL)
goto error;
protocol__prp_cell_stats_report__init(cell_report[i]);
cell_report[i]->carrier_index = report_config->cc_report_type[i].cc_id;
cell_report[i]->has_carrier_index = 1;
cell_report[i]->flags = report_config->cc_report_type[i].cc_report_flags;
cell_report[i]->has_flags = 1;
/* Check flag for creation of noise and interference report */
if(report_config->cc_report_type[i].cc_report_flags & PROTOCOL__PRP_CELL_STATS_TYPE__PRCST_NOISE_INTERFERENCE) {
// TODO: Fill in the actual noise and interference report for this cell
Protocol__PrpNoiseInterferenceReport *ni_report;
ni_report = malloc(sizeof(Protocol__PrpNoiseInterferenceReport));
if(ni_report == NULL)
goto error;
protocol__prp_noise_interference_report__init(ni_report);
// Current frame and subframe number
ni_report->sfn_sf = get_sfn_sf(enb_id);
ni_report->has_sfn_sf = 1;
// Received interference power in dbm
ni_report->rip = 0;
ni_report->has_rip = 1;
// Thermal noise power in dbm
ni_report->tnp = 0;
ni_report->has_tnp = 1;
cell_report[i]->noise_inter_report = ni_report;
}
}
/* Add list of all cell reports to the message */
stats_reply_msg->cell_report = cell_report;
}
*msg = malloc(sizeof(Protocol__ProgranMessage));
if(*msg == NULL)
goto error;
protocol__progran_message__init(*msg);
(*msg)->msg_case = PROTOCOL__PROGRAN_MESSAGE__MSG_STATS_REPLY_MSG;
(*msg)->msg_dir = PROTOCOL__PROGRAN_DIRECTION__SUCCESSFUL_OUTCOME;
(*msg)->stats_reply_msg = stats_reply_msg;
return 0;
error:
// TODO: Need to make proper error handling
if (header != NULL)
free(header);
if (stats_reply_msg != NULL)
free(stats_reply_msg);
if(*msg != NULL)
free(*msg);
//LOG_E(MAC, "%s: an error occured\n", __FUNCTION__);
return -1;
}
int enb_agent_mac_destroy_stats_reply(Protocol__ProgranMessage *msg) {
//TODO: Need to deallocate memory for the stats reply message
if(msg->msg_case != PROTOCOL__PROGRAN_MESSAGE__MSG_STATS_REPLY_MSG)
goto error;
free(msg->stats_reply_msg->header);
int i, j, k;
Protocol__PrpStatsReply *reply = msg->stats_reply_msg;
Protocol__PrpDlCqiReport *dl_report;
Protocol__PrpUlCqiReport *ul_report;
Protocol__PrpPagingBufferReport *paging_report;
// Free the memory for the UE reports
for (i = 0; i < reply->n_ue_report; i++) {
free(reply->ue_report[i]->bsr);
for (j = 0; j < reply->ue_report[i]->n_rlc_report; j++) {
free(reply->ue_report[i]->rlc_report[j]);
}
free(reply->ue_report[i]->rlc_report);
// If DL CQI report flag was set
if (reply->ue_report[i]->flags & PROTOCOL__PRP_UE_STATS_TYPE__PRUST_DL_CQI) {
dl_report = reply->ue_report[i]->dl_cqi_report;
// Delete all CSI reports
for (j = 0; j < dl_report->n_csi_report; j++) {
//Must free memory based on the type of report
switch(dl_report->csi_report[j]->report_case) {
case PROTOCOL__PRP_DL_CSI__REPORT_P10CSI:
free(dl_report->csi_report[j]->p10csi);
break;
case PROTOCOL__PRP_DL_CSI__REPORT_P11CSI:
free(dl_report->csi_report[j]->p11csi->wb_cqi);
free(dl_report->csi_report[j]->p11csi);
break;
case PROTOCOL__PRP_DL_CSI__REPORT_P20CSI:
free(dl_report->csi_report[j]->p20csi);
break;
case PROTOCOL__PRP_DL_CSI__REPORT_P21CSI:
free(dl_report->csi_report[j]->p21csi->wb_cqi);
free(dl_report->csi_report[j]->p21csi->sb_cqi);
free(dl_report->csi_report[j]->p21csi);
break;
case PROTOCOL__PRP_DL_CSI__REPORT_A12CSI:
free(dl_report->csi_report[j]->a12csi->wb_cqi);
free(dl_report->csi_report[j]->a12csi->sb_pmi);
free(dl_report->csi_report[j]->a12csi);
break;
case PROTOCOL__PRP_DL_CSI__REPORT_A22CSI:
free(dl_report->csi_report[j]->a22csi->wb_cqi);
free(dl_report->csi_report[j]->a22csi->sb_cqi);
free(dl_report->csi_report[j]->a22csi->sb_list);
free(dl_report->csi_report[j]->a22csi);
break;
case PROTOCOL__PRP_DL_CSI__REPORT_A20CSI:
free(dl_report->csi_report[j]->a20csi->sb_list);
free(dl_report->csi_report[j]->a20csi);
break;
case PROTOCOL__PRP_DL_CSI__REPORT_A30CSI:
free(dl_report->csi_report[j]->a30csi->sb_cqi);
free(dl_report->csi_report[j]->a30csi);
break;
case PROTOCOL__PRP_DL_CSI__REPORT_A31CSI:
free(dl_report->csi_report[j]->a31csi->wb_cqi);
for (k = 0; k < dl_report->csi_report[j]->a31csi->n_sb_cqi; k++) {
free(dl_report->csi_report[j]->a31csi->sb_cqi[k]);
}
free(dl_report->csi_report[j]->a31csi->sb_cqi);
break;
}
free(dl_report->csi_report[j]);
}
free(dl_report->csi_report);
free(dl_report);
}
// If Paging buffer report flag was set
if (reply->ue_report[i]->flags & PROTOCOL__PRP_UE_STATS_TYPE__PRUST_PBS) {
paging_report = reply->ue_report[i]->pbr;
// Delete all paging buffer reports
for (j = 0; j < paging_report->n_paging_info; j++) {
free(paging_report->paging_info[j]);
}
free(paging_report->paging_info);
free(paging_report);
}
// If UL CQI report flag was set
if (reply->ue_report[i]->flags & PROTOCOL__PRP_UE_STATS_TYPE__PRUST_UL_CQI) {
ul_report = reply->ue_report[i]->ul_cqi_report;
for (j = 0; j < ul_report->n_cqi_meas; j++) {
free(ul_report->cqi_meas[j]->sinr);
free(ul_report->cqi_meas[j]);
}
free(ul_report->cqi_meas);
}
free(reply->ue_report[i]);
}
free(reply->ue_report);
// Free memory for all Cell reports
for (i = 0; i < reply->n_cell_report; i++) {
free(reply->cell_report[i]->noise_inter_report);
free(reply->cell_report[i]);
}
free(reply->cell_report);
free(reply);
free(msg);
return 0;
error:
//LOG_E(MAC, "%s: an error occured\n", __FUNCTION__);
return -1;
}
int enb_agent_mac_sr_info(mid_t mod_id, const void *params, Protocol__ProgranMessage **msg) {
Protocol__PrpHeader *header;
int i;
const int xid = *((int *)params);
if (prp_create_header(xid, PROTOCOL__PRP_TYPE__PRPT_UL_SR_INFO, &header) != 0)
goto error;
Protocol__PrpUlSrInfo *ul_sr_info_msg;
ul_sr_info_msg = malloc(sizeof(Protocol__PrpUlSrInfo));
if (ul_sr_info_msg == NULL) {
goto error;
}
protocol__prp_ul_sr_info__init(ul_sr_info_msg);
ul_sr_info_msg->header = header;
ul_sr_info_msg->has_sfn_sf = 1;
ul_sr_info_msg->sfn_sf = get_sfn_sf(mod_id);
/*TODO: Set the number of UEs that sent an SR */
ul_sr_info_msg->n_rnti = 1;
ul_sr_info_msg->rnti = (uint32_t *) malloc(ul_sr_info_msg->n_rnti * sizeof(uint32_t));
if(ul_sr_info_msg->rnti == NULL) {
goto error;
}
/*TODO:Set the rnti of the UEs that sent an SR */
for (i = 0; i < ul_sr_info_msg->n_rnti; i++) {
ul_sr_info_msg->rnti[i] = 1;
}
*msg = malloc(sizeof(Protocol__ProgranMessage));
if(*msg == NULL)
goto error;
protocol__progran_message__init(*msg);
(*msg)->msg_case = PROTOCOL__PROGRAN_MESSAGE__MSG_UL_SR_INFO_MSG;
(*msg)->msg_dir = PROTOCOL__PROGRAN_DIRECTION__INITIATING_MESSAGE;
(*msg)->ul_sr_info_msg = ul_sr_info_msg;
return 0;
error:
// TODO: Need to make proper error handling
if (header != NULL)
free(header);
if (ul_sr_info_msg != NULL) {
free(ul_sr_info_msg->rnti);
free(ul_sr_info_msg);
}
if(*msg != NULL)
free(*msg);
//LOG_E(MAC, "%s: an error occured\n", __FUNCTION__);
return -1;
}
int enb_agent_mac_destroy_sr_info(Protocol__ProgranMessage *msg) {
if(msg->msg_case != PROTOCOL__PROGRAN_MESSAGE__MSG_UL_SR_INFO_MSG)
goto error;
free(msg->ul_sr_info_msg->header);
free(msg->ul_sr_info_msg->rnti);
free(msg->ul_sr_info_msg);
free(msg);
return 0;
error:
//LOG_E(MAC, "%s: an error occured\n", __FUNCTION__);
return -1;
}
int enb_agent_mac_sf_trigger(mid_t mod_id, const void *params, Protocol__ProgranMessage **msg) {
Protocol__PrpHeader *header;
int i,j;
const int xid = *((int *)params);
if (prp_create_header(xid, PROTOCOL__PRP_TYPE__PRPT_SF_TRIGGER, &header) != 0)
goto error;
Protocol__PrpSfTrigger *sf_trigger_msg;
sf_trigger_msg = malloc(sizeof(Protocol__PrpSfTrigger));
if (sf_trigger_msg == NULL) {
goto error;
}
protocol__prp_sf_trigger__init(sf_trigger_msg);
sf_trigger_msg->header = header;
sf_trigger_msg->has_sfn_sf = 1;
sf_trigger_msg->sfn_sf = get_sfn_sf(mod_id);
/*TODO: Fill in the number of dl HARQ related info, based on the number of currently
*transmitting UEs
*/
sf_trigger_msg->n_dl_info = get_num_ues(mod_id);
Protocol__PrpDlInfo **dl_info = NULL;
if (sf_trigger_msg->n_dl_info > 0) {
dl_info = malloc(sizeof(Protocol__PrpDlInfo *) * sf_trigger_msg->n_dl_info);
if(dl_info == NULL)
goto error;
//Fill the status of the current HARQ process for each UE
for(i = 0; i++; i < sf_trigger_msg->n_dl_info) {
dl_info[i] = malloc(sizeof(Protocol__PrpDlInfo));
if(dl_info[i] == NULL)
goto error;
protocol__prp_dl_info__init(dl_info[i]);
dl_info[i]->rnti = get_ue_crnti(mod_id, i);
dl_info[i]->has_rnti = 1;
/*TODO: fill in the right id of this round's HARQ process for this UE*/
dl_info[i]->harq_process_id = 1;
dl_info[i]->has_harq_process_id = 1;
/*TODO: fill in the status of the HARQ process (2 TBs)*/
dl_info[i]->n_harq_status = 2;
dl_info[i]->harq_status = malloc(sizeof(uint32_t) * dl_info[i]->n_harq_status);
for (j = 0; j < dl_info[j]->n_harq_status; j++) {
dl_info[i]->harq_status[j] = PROTOCOL__PRP_HARQ_STATUS__PRHS_ACK;
}
/*TODO: fill in the serving cell index for this UE */
dl_info[i]->serv_cell_index = 0;
dl_info[i]->has_serv_cell_index = 1;
}
}
sf_trigger_msg->dl_info = dl_info;
/*TODO: Fill in the number of UL reception status related info, based on the number of currently
*transmitting UEs
*/
sf_trigger_msg->n_ul_info = get_num_ues(mod_id);
Protocol__PrpUlInfo **ul_info = NULL;
if (sf_trigger_msg->n_ul_info > 0) {
ul_info = malloc(sizeof(Protocol__PrpUlInfo *) * sf_trigger_msg->n_ul_info);
if(ul_info == NULL)
goto error;
//Fill the reception info for each transmitting UE
for(i = 0; i++; i < sf_trigger_msg->n_ul_info) {
ul_info[i] = malloc(sizeof(Protocol__PrpUlInfo));
if(ul_info[i] == NULL)
goto error;
protocol__prp_ul_info__init(ul_info[i]);
ul_info[i]->rnti = get_ue_crnti(mod_id, i);
ul_info[i]->has_rnti = 1;
/*TODO: fill in the Tx power control command for this UE (if available)*/
ul_info[i]->tpc = 1;
ul_info[i]->has_tpc = 0;
/*TODO: fill in the amount of data in bytes in the MAC SDU received in this subframe for the
given logical channel*/
ul_info[i]->n_ul_reception = 11;
ul_info[i]->ul_reception = malloc(sizeof(uint32_t) * ul_info[i]->n_ul_reception);
for (j = 0; j < ul_info[j]->n_ul_reception; j++) {
ul_info[i]->ul_reception[j] = 100;
}
/*TODO: Fill in the reception status for each UEs data*/
ul_info[i]->reception_status = PROTOCOL__PRP_RECEPTION_STATUS__PRRS_OK;
ul_info[i]->has_reception_status = 1;
/*TODO: fill in the serving cell index for this UE */
ul_info[i]->serv_cell_index = 0;
ul_info[i]->has_serv_cell_index = 1;
}
}
sf_trigger_msg->ul_info = ul_info;
*msg = malloc(sizeof(Protocol__ProgranMessage));
if(*msg == NULL)
goto error;
protocol__progran_message__init(*msg);
(*msg)->msg_case = PROTOCOL__PROGRAN_MESSAGE__MSG_SF_TRIGGER_MSG;
(*msg)->msg_dir = PROTOCOL__PROGRAN_DIRECTION__INITIATING_MESSAGE;
(*msg)->sf_trigger_msg = sf_trigger_msg;
return 0;
error:
if (header != NULL)
free(header);
if (sf_trigger_msg != NULL) {
for (i = 0; i < sf_trigger_msg->n_dl_info; i++) {
free(sf_trigger_msg->dl_info[i]->harq_status);
}
free(sf_trigger_msg->dl_info);
for (i = 0; i < sf_trigger_msg->n_ul_info; i++) {
free(sf_trigger_msg->ul_info[i]->reception_status);
}
free(sf_trigger_msg->ul_info);
free(sf_trigger_msg);
}
if(*msg != NULL)
free(*msg);
//LOG_E(MAC, "%s: an error occured\n", __FUNCTION__);
return -1;
}
int enb_agent_mac_destroy_sf_trigger(Protocol__ProgranMessage *msg) {
int i;
if(msg->msg_case != PROTOCOL__PROGRAN_MESSAGE__MSG_SF_TRIGGER_MSG)
goto error;
free(msg->sf_trigger_msg->header);
for (i = 0; i < msg->sf_trigger_msg->n_dl_info; i++) {
free(msg->sf_trigger_msg->dl_info[i]->harq_status);
}
free(msg->sf_trigger_msg->dl_info);
for (i = 0; i < msg->sf_trigger_msg->n_ul_info; i++) {
free(msg->sf_trigger_msg->ul_info[i]->reception_status);
}
free(msg->sf_trigger_msg->ul_info);
free(msg->sf_trigger_msg);
free(msg);
return 0;
error:
//LOG_E(MAC, "%s: an error occured\n", __FUNCTION__);
return -1;
}
int enb_agent_mac_create_empty_dl_config(mid_t mod_id, Protocol__ProgranMessage **msg) {
int xid = 0;
Protocol__PrpHeader *header;
if (prp_create_header(xid, PROTOCOL__PRP_TYPE__PRPT_DL_MAC_CONFIG, &header) != 0)
goto error;
Protocol__PrpDlMacConfig *dl_mac_config_msg;
dl_mac_config_msg = malloc(sizeof(Protocol__PrpDlMacConfig));
if (dl_mac_config_msg == NULL) {
goto error;
}
protocol__prp_dl_mac_config__init(dl_mac_config_msg);
dl_mac_config_msg->header = header;
dl_mac_config_msg->has_sfn_sf = 1;
dl_mac_config_msg->sfn_sf = get_sfn_sf(mod_id);
*msg = malloc(sizeof(Protocol__ProgranMessage));
if(*msg == NULL)
goto error;
protocol__progran_message__init(*msg);
(*msg)->msg_case = PROTOCOL__PROGRAN_MESSAGE__MSG_DL_MAC_CONFIG_MSG;
(*msg)->msg_dir = PROTOCOL__PROGRAN_DIRECTION__INITIATING_MESSAGE;
(*msg)->dl_mac_config_msg = dl_mac_config_msg;
return 0;
error:
return -1;
}
int enb_agent_mac_destroy_dl_config(Protocol__ProgranMessage *msg) {
//TODO: De-allocate the memory of the message
return -1;
}
/***********************************************
* eNB agent - technology mac API implementation
***********************************************/
void enb_agent_send_sr_info(mid_t mod_id) {
int size;
Protocol__ProgranMessage *msg;
void *data;
int priority;
err_code_t err_code;
int xid = 0;
/*TODO: Must use a proper xid*/
err_code = enb_agent_mac_sr_info(mod_id, (void *) &xid, &msg);
if (err_code < 0) {
goto error;
}
if (msg != NULL){
data=enb_agent_pack_message(msg, &size);
/*Send sr info using the MAC channel of the eNB*/
if (enb_agent_msg_send(mod_id, ENB_AGENT_MAC, data, size, priority)) {
err_code = PROTOCOL__PROGRAN_ERR__MSG_ENQUEUING;
goto error;
}
LOG_D(ENB_AGENT,"sent message with size %d\n", size);
return;
}
error:
LOG_D(ENB_AGENT, "Could not send sr message\n");
}
void enb_agent_send_sf_trigger(mid_t mod_id) {
int size;
Protocol__ProgranMessage *msg;
void *data;
int priority;
err_code_t err_code;
int xid = 0;
/*TODO: Must use a proper xid*/
err_code = enb_agent_mac_sf_trigger(mod_id, (void *) &xid, &msg);
if (err_code < 0) {
goto error;
}
if (msg != NULL){
data=enb_agent_pack_message(msg, &size);
/*Send sr info using the MAC channel of the eNB*/
if (enb_agent_msg_send(mod_id, ENB_AGENT_MAC, data, size, priority)) {
err_code = PROTOCOL__PROGRAN_ERR__MSG_ENQUEUING;
goto error;
}
LOG_D(ENB_AGENT,"sent message with size %d\n", size);
return;
}
error:
LOG_D(ENB_AGENT, "Could not send sf trigger message\n");
}
void enb_agent_send_update_mac_stats(mid_t mod_id) {
Protocol__ProgranMessage *current_report, *msg;
void *data;
int size;
err_code_t err_code;
int priority;
mac_stats_updates_context_t stats_context = mac_stats_context[mod_id];
if (pthread_mutex_lock(mac_stats_context[mod_id].mutex)) {
goto error;
}
/*Create a fresh report with the required flags*/
err_code = enb_agent_mac_handle_stats(mod_id, (void *) mac_stats_context[mod_id].stats_req, ¤t_report);
if (err_code < 0) {
goto error;
}
/*TODO:Check if a previous reports exists and if yes, generate a report
*that is the diff between the old and the new report,
*respecting the thresholds. Otherwise send the new report*/
if (mac_stats_context[mod_id].prev_stats_reply != NULL) {
msg = enb_agent_generate_diff_mac_stats_report(current_report, mac_stats_context[mod_id].prev_stats_reply);
/*Destroy the old stats*/
enb_agent_destroy_progran_message(mac_stats_context[mod_id].prev_stats_reply);
}
/*Use the current report for future comparissons*/
mac_stats_context[mod_id].prev_stats_reply = current_report;
if (pthread_mutex_unlock(mac_stats_context[mod_id].mutex)) {
goto error;
}
if (msg != NULL){
data=enb_agent_pack_message(msg, &size);
/*Send any stats updates using the MAC channel of the eNB*/
if (enb_agent_msg_send(mod_id, ENB_AGENT_MAC, data, size, priority)) {
err_code = PROTOCOL__PROGRAN_ERR__MSG_ENQUEUING;
goto error;
}
LOG_D(ENB_AGENT,"sent message with size %d\n", size);
return;
}
error:
LOG_D(ENB_AGENT, "Could not send sf trigger message\n");
}
int enb_agent_register_mac_xface(mid_t mod_id, AGENT_MAC_xface *xface) {
if (mac_agent_registered[mod_id]) {
LOG_E(MAC, "MAC agent for eNB %d is already registered\n", mod_id);
return -1;
}
//xface->agent_ctxt = &shared_ctxt[mod_id];
xface->enb_agent_send_sr_info = enb_agent_send_sr_info;
xface->enb_agent_send_sf_trigger = enb_agent_send_sf_trigger;
xface->enb_agent_send_update_mac_stats = enb_agent_send_update_mac_stats;
mac_agent_registered[mod_id] = 1;
agent_mac_xface[mod_id] = xface;
return 0;
}
int enb_agent_unregister_mac_xface(mid_t mod_id, AGENT_MAC_xface *xface) {
//xface->agent_ctxt = NULL;
xface->enb_agent_send_sr_info = NULL;
xface->enb_agent_send_sf_trigger = NULL;
xface->enb_agent_send_update_mac_stats = NULL;
mac_agent_registered[mod_id] = 0;
agent_mac_xface[mod_id] = NULL;
return 0;
}
/******************************************************
*Implementations of enb_agent_mac_internal.h functions
******************************************************/
err_code_t enb_agent_init_cont_mac_stats_update(mid_t mod_id) {
/*Initialize the Mac stats update structure*/
/*Initially the continuous update is set to false*/
mac_stats_context[mod_id].cont_update = 0;
mac_stats_context[mod_id].is_initialized = 1;
mac_stats_context[mod_id].stats_req = NULL;
mac_stats_context[mod_id].prev_stats_reply = NULL;
mac_stats_context[mod_id].mutex = calloc(1, sizeof(pthread_mutex_t));
if (mac_stats_context[mod_id].mutex == NULL)
goto error;
if (pthread_mutex_init(mac_stats_context[mod_id].mutex, NULL))
goto error;;
return 0;
error:
return -1;
}
err_code_t enb_agent_destroy_cont_mac_stats_update(mid_t mod_id) {
/*Disable the continuous updates for the MAC*/
mac_stats_context[mod_id].cont_update = 0;
mac_stats_context[mod_id].is_initialized = 0;
enb_agent_destroy_progran_message(mac_stats_context[mod_id].stats_req);
enb_agent_destroy_progran_message(mac_stats_context[mod_id].prev_stats_reply);
free(mac_stats_context[mod_id].mutex);
mac_agent_registered[mod_id] = NULL;
return 1;
}
err_code_t enb_agent_enable_cont_mac_stats_update(mid_t mod_id,
xid_t xid, stats_request_config_t *stats_req) {
/*Enable the continuous updates for the MAC*/
if (pthread_mutex_lock(mac_stats_context[mod_id].mutex)) {
goto error;
}
Protocol__ProgranMessage *req_msg;
enb_agent_mac_stats_request(mod_id, xid, stats_req, &req_msg);
mac_stats_context[mod_id].stats_req = req_msg;
mac_stats_context[mod_id].prev_stats_reply = NULL;
mac_stats_context[mod_id].cont_update = 1;
mac_stats_context[mod_id].xid = xid;
if (pthread_mutex_unlock(mac_stats_context[mod_id].mutex)) {
goto error;
}
return 0;
error:
LOG_E(ENB_AGENT, "mac_stats_context for eNB %d is not initialized\n", mod_id);
return -1;
}
err_code_t enb_agent_disable_cont_mac_stats_update(mid_t mod_id) {
/*Disable the continuous updates for the MAC*/
if (pthread_mutex_lock(mac_stats_context[mod_id].mutex)) {
goto error;
}
mac_stats_context[mod_id].cont_update = 0;
mac_stats_context[mod_id].xid = 0;
if (mac_stats_context[mod_id].stats_req != NULL) {
enb_agent_destroy_progran_message(mac_stats_context[mod_id].stats_req);
}
if (mac_stats_context[mod_id].prev_stats_reply != NULL) {
enb_agent_destroy_progran_message(mac_stats_context[mod_id].prev_stats_reply);
}
if (pthread_mutex_unlock(mac_stats_context[mod_id].mutex)) {
goto error;
}
return 0;
error:
LOG_E(ENB_AGENT, "mac_stats_context for eNB %d is not initialized\n", mod_id);
return -1;
}