mirror of
https://github.com/clearml/dropbear
synced 2025-06-26 18:17:32 +00:00
Makefile.in contains updated files required
--HG-- extra : convert_revision : cc8a8c49dc70e632c352853a39801089b08149be
This commit is contained in:
89
queue.c
Normal file
89
queue.c
Normal file
@@ -0,0 +1,89 @@
|
||||
/*
|
||||
* Dropbear - a SSH2 server
|
||||
*
|
||||
* Copyright (c) 2002,2003 Matt Johnston
|
||||
* All rights reserved.
|
||||
*
|
||||
* Permission is hereby granted, free of charge, to any person obtaining a copy
|
||||
* of this software and associated documentation files (the "Software"), to deal
|
||||
* in the Software without restriction, including without limitation the rights
|
||||
* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
|
||||
* copies of the Software, and to permit persons to whom the Software is
|
||||
* furnished to do so, subject to the following conditions:
|
||||
*
|
||||
* The above copyright notice and this permission notice shall be included in
|
||||
* all copies or substantial portions of the Software.
|
||||
*
|
||||
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
|
||||
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
|
||||
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
|
||||
* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
|
||||
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
|
||||
* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
|
||||
* SOFTWARE. */
|
||||
|
||||
#include "includes.h"
|
||||
#include "dbutil.h"
|
||||
#include "queue.h"
|
||||
|
||||
void initqueue(struct Queue* queue) {
|
||||
|
||||
queue->head = NULL;
|
||||
queue->tail = NULL;
|
||||
queue->count = 0;
|
||||
}
|
||||
|
||||
int isempty(struct Queue* queue) {
|
||||
|
||||
return (queue->head == NULL);
|
||||
}
|
||||
|
||||
void* dequeue(struct Queue* queue) {
|
||||
|
||||
void* ret;
|
||||
struct Link* oldhead;
|
||||
assert(!isempty(queue));
|
||||
|
||||
ret = queue->head->item;
|
||||
oldhead = queue->head;
|
||||
|
||||
if (oldhead->link != NULL) {
|
||||
queue->head = oldhead->link;
|
||||
} else {
|
||||
queue->head = NULL;
|
||||
queue->tail = NULL;
|
||||
TRACE(("empty queue dequeing"));
|
||||
}
|
||||
|
||||
m_free(oldhead);
|
||||
queue->count--;
|
||||
return ret;
|
||||
}
|
||||
|
||||
void *examine(struct Queue* queue) {
|
||||
|
||||
assert(!isempty(queue));
|
||||
return queue->head->item;
|
||||
}
|
||||
|
||||
void enqueue(struct Queue* queue, void* item) {
|
||||
|
||||
struct Link* newlink;
|
||||
|
||||
TRACE(("enter enqueue"));
|
||||
newlink = (struct Link*)m_malloc(sizeof(struct Link));
|
||||
|
||||
newlink->item = item;
|
||||
newlink->link = NULL;
|
||||
|
||||
if (queue->tail != NULL) {
|
||||
queue->tail->link = newlink;
|
||||
}
|
||||
queue->tail = newlink;
|
||||
|
||||
if (queue->head == NULL) {
|
||||
queue->head = newlink;
|
||||
}
|
||||
queue->count++;
|
||||
TRACE(("leave enqueue"));
|
||||
}
|
||||
Reference in New Issue
Block a user