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https://git.proxmox.com/git/mirror_frr
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97c17c1e8b
With commit:
60a3efec24
The ability for the wheel code to display the name of what
wheel was actually being run was removed from the system.
Since we can no longer do this and it's been 4 years since it's
been in, let's just remove this bit of dead code.
Signed-off-by: Donald Sharp <sharpd@nvidia.com>
124 lines
3.0 KiB
C
124 lines
3.0 KiB
C
// SPDX-License-Identifier: GPL-2.0-or-later
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/*
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* Timer Wheel
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* Copyright (C) 2016 Cumulus Networks, Inc.
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* Donald Sharp
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*/
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#include "zebra.h"
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#include "linklist.h"
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#include "frrevent.h"
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#include "memory.h"
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#include "wheel.h"
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#include "log.h"
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DEFINE_MTYPE_STATIC(LIB, TIMER_WHEEL, "Timer Wheel");
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DEFINE_MTYPE_STATIC(LIB, TIMER_WHEEL_LIST, "Timer Wheel Slot List");
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static int debug_timer_wheel = 0;
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static void wheel_timer_thread(struct event *t);
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static void wheel_timer_thread(struct event *t)
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{
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struct listnode *node, *nextnode;
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unsigned long long curr_slot;
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unsigned int slots_to_skip = 1;
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struct timer_wheel *wheel;
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void *data;
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wheel = EVENT_ARG(t);
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wheel->curr_slot += wheel->slots_to_skip;
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curr_slot = wheel->curr_slot % wheel->slots;
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if (debug_timer_wheel)
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zlog_debug("%s: Wheel Slot: %lld(%lld) count: %d", __func__,
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wheel->curr_slot, curr_slot,
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listcount(wheel->wheel_slot_lists[curr_slot]));
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for (ALL_LIST_ELEMENTS(wheel->wheel_slot_lists[curr_slot], node,
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nextnode, data))
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(*wheel->slot_run)(data);
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while (list_isempty(wheel->wheel_slot_lists[(curr_slot + slots_to_skip)
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% wheel->slots])
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&& (curr_slot + slots_to_skip) % wheel->slots != curr_slot)
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slots_to_skip++;
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wheel->slots_to_skip = slots_to_skip;
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event_add_timer_msec(wheel->master, wheel_timer_thread, wheel,
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wheel->nexttime * slots_to_skip, &wheel->timer);
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}
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struct timer_wheel *wheel_init(struct event_loop *master, int period,
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size_t slots,
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unsigned int (*slot_key)(const void *),
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void (*slot_run)(void *), const char *run_name)
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{
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struct timer_wheel *wheel;
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size_t i;
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wheel = XCALLOC(MTYPE_TIMER_WHEEL, sizeof(struct timer_wheel));
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wheel->slot_key = slot_key;
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wheel->slot_run = slot_run;
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wheel->period = period;
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wheel->slots = slots;
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wheel->curr_slot = 0;
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wheel->master = master;
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wheel->nexttime = period / slots;
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wheel->wheel_slot_lists = XCALLOC(MTYPE_TIMER_WHEEL_LIST,
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slots * sizeof(struct list *));
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for (i = 0; i < slots; i++)
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wheel->wheel_slot_lists[i] = list_new();
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event_add_timer_msec(wheel->master, wheel_timer_thread, wheel,
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wheel->nexttime, &wheel->timer);
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return wheel;
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}
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void wheel_delete(struct timer_wheel *wheel)
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{
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int i;
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for (i = 0; i < wheel->slots; i++) {
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list_delete(&wheel->wheel_slot_lists[i]);
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}
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EVENT_OFF(wheel->timer);
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XFREE(MTYPE_TIMER_WHEEL_LIST, wheel->wheel_slot_lists);
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XFREE(MTYPE_TIMER_WHEEL, wheel);
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}
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int wheel_add_item(struct timer_wheel *wheel, void *item)
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{
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long long slot;
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slot = (*wheel->slot_key)(item);
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if (debug_timer_wheel)
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zlog_debug("%s: Inserting %p: %lld %lld", __func__, item, slot,
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slot % wheel->slots);
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listnode_add(wheel->wheel_slot_lists[slot % wheel->slots], item);
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return 0;
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}
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int wheel_remove_item(struct timer_wheel *wheel, void *item)
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{
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long long slot;
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slot = (*wheel->slot_key)(item);
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if (debug_timer_wheel)
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zlog_debug("%s: Removing %p: %lld %lld", __func__, item, slot,
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slot % wheel->slots);
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listnode_delete(wheel->wheel_slot_lists[slot % wheel->slots], item);
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return 0;
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}
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