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Diffstat (limited to 'src/ipcpd/normal/sdu_sched.c')
-rw-r--r--src/ipcpd/normal/sdu_sched.c241
1 files changed, 0 insertions, 241 deletions
diff --git a/src/ipcpd/normal/sdu_sched.c b/src/ipcpd/normal/sdu_sched.c
deleted file mode 100644
index e6d705fb..00000000
--- a/src/ipcpd/normal/sdu_sched.c
+++ /dev/null
@@ -1,241 +0,0 @@
-/*
- * Ouroboros - Copyright (C) 2016 - 2018
- *
- * SDU scheduler component
- *
- * Dimitri Staessens <dimitri.staessens@ugent.be>
- * Sander Vrijders <sander.vrijders@ugent.be>
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2 as
- * published by the Free Software Foundation.
- *
- * This program 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 this program; if not, write to the Free Software
- * Foundation, Inc., http://www.fsf.org/about/contact/.
- */
-
-#if defined(__linux__) || defined(__CYGWIN__)
-#define _DEFAULT_SOURCE
-#else
-#define _POSIX_C_SOURCE 200112L
-#endif
-
-#include "config.h"
-
-#include <ouroboros/errno.h>
-#include <ouroboros/notifier.h>
-
-#include "ipcp.h"
-#include "sdu_sched.h"
-#include "connmgr.h"
-
-#include <assert.h>
-#include <sched.h>
-#include <stdbool.h>
-#include <stdlib.h>
-#include <string.h>
-
-static int qos_prio [] = {
- QOS_PRIO_RAW,
- QOS_PRIO_BE,
- QOS_PRIO_VIDEO,
- QOS_PRIO_VOICE,
- QOS_PRIO_DATA
-};
-
-struct sdu_sched {
- fset_t * set[QOS_CUBE_MAX];
- next_sdu_fn_t callback;
- pthread_t readers[QOS_CUBE_MAX * IPCP_SCHED_THR_MUL];
-};
-
-struct sched_info {
- struct sdu_sched * sch;
- qoscube_t qc;
-};
-
-static void cleanup_reader(void * o)
-{
- fqueue_destroy((fqueue_t *) o);
-}
-
-static void * sdu_reader(void * o)
-{
- struct sdu_sched * sched;
- struct shm_du_buff * sdb;
- int fd;
- fqueue_t * fq;
- qoscube_t qc;
-
- sched = ((struct sched_info *) o)->sch;
- qc = ((struct sched_info *) o)->qc;
-
- ipcp_lock_to_core();
-
- free(o);
-
- fq = fqueue_create();
- if (fq == NULL)
- return (void *) -1;
-
- pthread_cleanup_push(cleanup_reader, fq);
-
- while (true) {
- int ret = fevent(sched->set[qc], fq, NULL);
- if (ret < 0)
- continue;
-
- while ((fd = fqueue_next(fq)) >= 0) {
- switch (fqueue_type(fq)) {
- case FLOW_DEALLOC:
- notifier_event(NOTIFY_DT_FLOW_DEALLOC, &fd);
- break;
- case FLOW_DOWN:
- notifier_event(NOTIFY_DT_FLOW_DOWN, &fd);
- break;
- case FLOW_UP:
- notifier_event(NOTIFY_DT_FLOW_UP, &fd);
- break;
- case FLOW_PKT:
- if (ipcp_flow_read(fd, &sdb))
- continue;
-
- sched->callback(fd, qc, sdb);
- break;
- default:
- break;
- }
- }
- }
-
- pthread_cleanup_pop(true);
-
- return (void *) 0;
-}
-
-struct sdu_sched * sdu_sched_create(next_sdu_fn_t callback)
-{
- struct sdu_sched * sdu_sched;
- struct sched_info * infos[QOS_CUBE_MAX * IPCP_SCHED_THR_MUL];
- int i;
- int j;
-
- assert(callback);
-
- sdu_sched = malloc(sizeof(*sdu_sched));
- if (sdu_sched == NULL)
- goto fail_malloc;
-
- sdu_sched->callback = callback;
-
- for (i = 0; i < QOS_CUBE_MAX; ++i) {
- sdu_sched->set[i] = fset_create();
- if (sdu_sched->set[i] == NULL) {
- for (j = 0; j < i; ++j)
- fset_destroy(sdu_sched->set[j]);
- goto fail_flow_set;
- }
- }
-
- for (i = 0; i < QOS_CUBE_MAX * IPCP_SCHED_THR_MUL; ++i) {
- infos[i] = malloc(sizeof(*infos[i]));
- if (infos[i] == NULL) {
- for (j = 0; j < i; ++j)
- free(infos[j]);
- goto fail_infos;
- }
- infos[i]->sch = sdu_sched;
- infos[i]->qc = i % QOS_CUBE_MAX;
- }
-
- for (i = 0; i < QOS_CUBE_MAX * IPCP_SCHED_THR_MUL; ++i) {
- if (pthread_create(&sdu_sched->readers[i], NULL,
- sdu_reader, infos[i])) {
- for (j = 0; j < i; ++j)
- pthread_cancel(sdu_sched->readers[j]);
- for (j = 0; j < i; ++j)
- pthread_join(sdu_sched->readers[j], NULL);
- for (j = i; j < QOS_CUBE_MAX * IPCP_SCHED_THR_MUL; ++j)
- free(infos[i]);
- goto fail_infos;
- }
- }
-
- for (i = 0; i < QOS_CUBE_MAX * IPCP_SCHED_THR_MUL; ++i) {
- struct sched_param par;
- int pol = SCHED_RR;
- int min;
- int max;
-
- min = sched_get_priority_min(pol);
- max = sched_get_priority_max(pol);
-
- min = (max - min) / 2;
-
- par.sched_priority = min +
- (qos_prio[i % QOS_CUBE_MAX] * (max - min) / 99);
-
- if (pthread_setschedparam(sdu_sched->readers[i], pol, &par))
- goto fail_sched;
- }
-
- return sdu_sched;
-
- fail_sched:
- for (j = 0; j < QOS_CUBE_MAX * IPCP_SCHED_THR_MUL; ++j)
- pthread_cancel(sdu_sched->readers[j]);
- for (j = 0; j < QOS_CUBE_MAX * IPCP_SCHED_THR_MUL; ++j)
- pthread_join(sdu_sched->readers[j], NULL);
- fail_infos:
- for (j = 0; j < QOS_CUBE_MAX; ++j)
- fset_destroy(sdu_sched->set[j]);
- fail_flow_set:
- free(sdu_sched);
- fail_malloc:
- return NULL;
-}
-
-void sdu_sched_destroy(struct sdu_sched * sdu_sched)
-{
- int i;
-
- assert(sdu_sched);
-
- for (i = 0; i < QOS_CUBE_MAX * IPCP_SCHED_THR_MUL; ++i) {
- pthread_cancel(sdu_sched->readers[i]);
- pthread_join(sdu_sched->readers[i], NULL);
- }
-
- for (i = 0; i < QOS_CUBE_MAX; ++i)
- fset_destroy(sdu_sched->set[i]);
-
- free(sdu_sched);
-}
-
-void sdu_sched_add(struct sdu_sched * sdu_sched,
- int fd)
-{
- qoscube_t qc;
-
- assert(sdu_sched);
-
- ipcp_flow_get_qoscube(fd, &qc);
- fset_add(sdu_sched->set[qc], fd);
-}
-
-void sdu_sched_del(struct sdu_sched * sdu_sched,
- int fd)
-{
- qoscube_t qc;
-
- assert(sdu_sched);
-
- ipcp_flow_get_qoscube(fd, &qc);
- fset_del(sdu_sched->set[qc], fd);
-}
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