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/*
dcc-queue.c : irssi
Copyright (C) 1999-2001 Timo Sirainen
DCC queue by Heikki Orsila <heikki.orsila@tut.fi> (no copyrights claimed)
This program 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 2 of the License, or
(at your option) any later version.
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., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*/
#include "module.h"
#include "signals.h"
#include "commands.h"
#include "network.h"
#include "net-sendbuffer.h"
#include "misc.h"
#include "settings.h"
#include "irc-servers.h"
#include "dcc-queue.h"
static GPtrArray *queuelist;
/* dcc_queue_old finds an old queue (if it exists) */
int dcc_queue_old(const char *nick, const char *servertag)
{
int i;
for (i = 0; i < queuelist->len; i++) {
GSList *qlist = g_ptr_array_index(queuelist, i);
for (; qlist != NULL; qlist = qlist->next) {
DCC_QUEUE_REC *rec = qlist->data;
if (rec == NULL)
continue;
if (*nick != '\0' && g_strcasecmp(nick, rec->nick) != 0)
continue;
if (*servertag != '\0' &&
g_strcasecmp(servertag, rec->servertag) != 0)
continue;
/* found a queue matching nick/server! */
return i;
}
}
return -1;
}
int dcc_queue_new(void)
{
int i;
for (i = 0; i < queuelist->len; i++) {
if (g_ptr_array_index(queuelist, i) == NULL)
break;
}
if (i == queuelist->len)
g_ptr_array_set_size(queuelist, (i + 1) * 2);
/* create stub */
g_ptr_array_index(queuelist, i) = g_slist_append(NULL, NULL);
return i;
}
static void dcc_queue_free_rec(DCC_QUEUE_REC *rec)
{
if (rec != NULL) {
g_free(rec->servertag);
g_free(rec->nick);
g_free(rec->file);
g_free(rec);
}
}
void dcc_queue_free(int queue)
{
GSList **qlist;
g_assert(queue >= 0 && queue < queuelist->len);
qlist = (GSList **) &g_ptr_array_index(queuelist, queue);
while (*qlist != NULL) {
DCC_QUEUE_REC *rec = (*qlist)->data;
*qlist = (*qlist)->next;
dcc_queue_free_rec(rec);
}
}
/* add an element to queue. element will have nick/servertag/fname/chat as data.
mode specifies how the element should be added (append or prepend)
*/
void dcc_queue_add(int queue, int mode, const char *nick, const char *fname,
const char *servertag, CHAT_DCC_REC *chat, int passive)
{
DCC_QUEUE_REC *rec;
GSList **qlist;
g_assert(queue >= 0 && queue < queuelist->len);
rec = g_new0(DCC_QUEUE_REC, 1);
rec->chat = chat;
rec->servertag = g_strdup(servertag);
rec->nick = g_strdup(nick);
rec->file = g_strdup(fname);
rec->passive = passive;
qlist = (GSList **) &g_ptr_array_index(queuelist, queue);
if (mode == DCC_QUEUE_PREPEND)
*qlist = g_slist_insert(*qlist, rec, 1);
else
*qlist = g_slist_append(*qlist, rec);
}
/* removes the head or the tail from the queue. returns the number of
elements removed from the queue (0 or 1). if remove_head is non-zero,
the head is removed (or actually stub is removed and the current head
becomes the stub), otherwise the tail is removed. */
static int dcc_queue_remove_entry(int queue, int remove_head)
{
DCC_QUEUE_REC *rec;
GSList **qlist;
g_assert(queue >= 0 && queue < queuelist->len);
qlist = (GSList **) &g_ptr_array_index(queuelist, queue);
if (*qlist == NULL || (*qlist)->next == NULL)
return 0;
rec = remove_head ? (*qlist)->data : g_slist_last(*qlist)->data;
*qlist = g_slist_remove(*qlist, rec);
dcc_queue_free_rec(rec);
return 1;
}
/* removes the head, but not stub from the queue. returns number of elements
removed from the queue (0 or 1) */
int dcc_queue_remove_head(int queue)
{
return dcc_queue_remove_entry(queue, 1);
}
/* removes the tail, but not stub from the queue. returns number of elements
removed from the queue (0 or 1) */
int dcc_queue_remove_tail(int queue)
{
return dcc_queue_remove_entry(queue, 0);
}
DCC_QUEUE_REC *dcc_queue_get_next(int queue)
{
GSList *qlist;
g_assert(queue >= 0 && queue < queuelist->len);
qlist = g_ptr_array_index(queuelist, queue);
return qlist == NULL || qlist->next == NULL ? NULL : qlist->next->data;
}
GSList *dcc_queue_get_queue(int queue)
{
GSList *qlist;
g_assert(queue >= 0 && queue < queuelist->len);
qlist = g_ptr_array_index(queuelist, queue);
return qlist == NULL ? NULL : qlist->next;
}
static void sig_dcc_destroyed(CHAT_DCC_REC *dcc)
{
int i;
if (!IS_DCC_CHAT(dcc))
return;
for (i = 0; i < queuelist->len; i++) {
GSList *qlist = g_ptr_array_index(queuelist, i);
for (; qlist != NULL; qlist = qlist->next) {
DCC_QUEUE_REC *rec = qlist->data;
if (rec != NULL && rec->chat == dcc)
rec->chat = NULL;
}
}
}
void dcc_queue_init(void)
{
queuelist = g_ptr_array_new();
signal_add("dcc destroyed", (SIGNAL_FUNC) sig_dcc_destroyed);
}
void dcc_queue_deinit(void)
{
int i;
for (i = 0; i < queuelist->len; i++)
dcc_queue_free(i);
g_ptr_array_free(queuelist, TRUE);
signal_remove("dcc destroyed", (SIGNAL_FUNC) sig_dcc_destroyed);
}
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