/src/suricata7/src/tm-queues.c

Source
/* Copyright (C) 2007-2019 Open Information Security Foundation
 *
 * You can copy, redistribute or modify this Program 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
 * version 2 along with this program; if not, write to the Free Software
 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
 * 02110-1301, USA.
 */

/**
 * \file
 *
 * \author Victor Julien <victor@inliniac.net>
 *
 * Thread module management functions
 */

#include "suricata.h"
#include "threads.h"
#include "tm-queues.h"
#include "util-debug.h"

static TAILQ_HEAD(TmqList_, Tmq_) tmq_list = TAILQ_HEAD_INITIALIZER(tmq_list);

static uint16_t tmq_id = 0;

Tmq *TmqCreateQueue(const char *name)
{
    Tmq *q = SCCalloc(1, sizeof(*q));
    if (q == NULL)
        FatalError("SCCalloc failed");

    q->name = SCStrdup(name);
    if (q->name == NULL)
        FatalError("SCStrdup failed");

    q->id = tmq_id++;
    q->is_packet_pool = (strcmp(q->name, "packetpool") == 0);
    if (!q->is_packet_pool) {
        q->pq = PacketQueueAlloc();
        if (q->pq == NULL)
            FatalError("PacketQueueAlloc failed");
    }

    TAILQ_INSERT_HEAD(&tmq_list, q, next);

    SCLogDebug("created queue \'%s\', %p", name, q);
    return q;
}

Tmq *TmqGetQueueByName(const char *name)
{
    Tmq *tmq = NULL;
    TAILQ_FOREACH(tmq, &tmq_list, next) {
        if (strcmp(tmq->name, name) == 0)
            return tmq;
    }
    return NULL;
}

void TmqDebugList(void)
{
    Tmq *tmq = NULL;
    TAILQ_FOREACH(tmq, &tmq_list, next) {
        /* get a lock accessing the len */
        SCMutexLock(&tmq->pq->mutex_q);
        printf("TmqDebugList: id %" PRIu32 ", name \'%s\', len %" PRIu32 "\n", tmq->id, tmq->name, tmq->pq->len);
        SCMutexUnlock(&tmq->pq->mutex_q);
    }
}

void TmqResetQueues(void)
{
    Tmq *tmq;

    while ((tmq = TAILQ_FIRST(&tmq_list))) {
        TAILQ_REMOVE(&tmq_list, tmq, next);
        if (tmq->name) {
            SCFree(tmq->name);
        }
        if (tmq->pq) {
            PacketQueueFree(tmq->pq);
        }
        SCFree(tmq);
    }
    tmq_id = 0;
}

/**
 * \brief Checks if all the queues allocated so far have at least one reader
 *        and writer.
 */
void TmValidateQueueState(void)
{
    bool err = false;

    Tmq *tmq = NULL;
    TAILQ_FOREACH(tmq, &tmq_list, next) {
        SCMutexLock(&tmq->pq->mutex_q);
        if (tmq->reader_cnt == 0) {
            SCLogError("queue \"%s\" doesn't have a reader (id %d max %u)", tmq->name, tmq->id,
                    tmq_id);
            err = true;
        } else if (tmq->writer_cnt == 0) {
            SCLogError("queue \"%s\" doesn't have a writer (id %d, max %u)", tmq->name, tmq->id,
                    tmq_id);
            err = true;
        }
        SCMutexUnlock(&tmq->pq->mutex_q);

        if (err == true)
            goto error;
    }

    return;

error:
    FatalError("fatal error during threading setup");
}

Line	Count	Source
1		/* Copyright (C) 2007-2019 Open Information Security Foundation
2		*
3		* You can copy, redistribute or modify this Program under the terms of
4		* the GNU General Public License version 2 as published by the Free
5		* Software Foundation.
6		*
7		* This program is distributed in the hope that it will be useful,
8		* but WITHOUT ANY WARRANTY; without even the implied warranty of
9		* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
10		* GNU General Public License for more details.
11		*
12		* You should have received a copy of the GNU General Public License
13		* version 2 along with this program; if not, write to the Free Software
14		* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
15		* 02110-1301, USA.
16		*/
17
18		/**
19		* \file
20		*
21		* \author Victor Julien <victor@inliniac.net>
22		*
23		* Thread module management functions
24		*/
25
26		#include "suricata.h"
27		#include "threads.h"
28		#include "tm-queues.h"
29		#include "util-debug.h"
30
31		static TAILQ_HEAD(TmqList_, Tmq_) tmq_list = TAILQ_HEAD_INITIALIZER(tmq_list);
32
33		static uint16_t tmq_id = 0;
34
35		Tmq TmqCreateQueue(const char name)
36	0	{
37	0	Tmq q = SCCalloc(1, sizeof(q));
38	0	if (q == NULL)
39	0	FatalError("SCCalloc failed");
40
41	0	q->name = SCStrdup(name);
42	0	if (q->name == NULL)
43	0	FatalError("SCStrdup failed");
44
45	0	q->id = tmq_id++;
46	0	q->is_packet_pool = (strcmp(q->name, "packetpool") == 0);
47	0	if (!q->is_packet_pool) {
48	0	q->pq = PacketQueueAlloc();
49	0	if (q->pq == NULL)
50	0	FatalError("PacketQueueAlloc failed");
51	0	}
52
53	0	TAILQ_INSERT_HEAD(&tmq_list, q, next);
54
55	0	SCLogDebug("created queue \'%s\', %p", name, q);
56	0	return q;
57	0	}
58
59		Tmq TmqGetQueueByName(const char name)
60	0	{
61	0	Tmq *tmq = NULL;
62	0	TAILQ_FOREACH(tmq, &tmq_list, next) {
63	0	if (strcmp(tmq->name, name) == 0)
64	0	return tmq;
65	0	}
66	0	return NULL;
67	0	}
68
69		void TmqDebugList(void)
70	0	{
71	0	Tmq *tmq = NULL;
72	0	TAILQ_FOREACH(tmq, &tmq_list, next) {
73		/* get a lock accessing the len */
74	0	SCMutexLock(&tmq->pq->mutex_q);
75	0	printf("TmqDebugList: id %" PRIu32 ", name \'%s\', len %" PRIu32 "\n", tmq->id, tmq->name, tmq->pq->len);
76	0	SCMutexUnlock(&tmq->pq->mutex_q);
77	0	}
78	0	}
79
80		void TmqResetQueues(void)
81	0	{
82	0	Tmq *tmq;
83
84	0	while ((tmq = TAILQ_FIRST(&tmq_list))) {
85	0	TAILQ_REMOVE(&tmq_list, tmq, next);
86	0	if (tmq->name) {
87	0	SCFree(tmq->name);
88	0	}
89	0	if (tmq->pq) {
90	0	PacketQueueFree(tmq->pq);
91	0	}
92	0	SCFree(tmq);
93	0	}
94	0	tmq_id = 0;
95	0	}
96
97		/**
98		* \brief Checks if all the queues allocated so far have at least one reader
99		* and writer.
100		*/
101		void TmValidateQueueState(void)
102	0	{
103	0	bool err = false;
104
105	0	Tmq *tmq = NULL;
106	0	TAILQ_FOREACH(tmq, &tmq_list, next) {
107	0	SCMutexLock(&tmq->pq->mutex_q);
108	0	if (tmq->reader_cnt == 0) {
109	0	SCLogError("queue \"%s\" doesn't have a reader (id %d max %u)", tmq->name, tmq->id,
110	0	tmq_id);
111	0	err = true;
112	0	} else if (tmq->writer_cnt == 0) {
113	0	SCLogError("queue \"%s\" doesn't have a writer (id %d, max %u)", tmq->name, tmq->id,
114	0	tmq_id);
115	0	err = true;
116	0	}
117	0	SCMutexUnlock(&tmq->pq->mutex_q);
118
119	0	if (err == true)
120	0	goto error;
121	0	}
122
123	0	return;
124
125	0	error:
126		FatalError("fatal error during threading setup");
127	0	}

Coverage Report

Created: 2026-02-14 06:42