hydra/src/queue.c

/*
 *  Hydra, an http server
 *  Copyright (C) 1995 Paul Phillips <paulp@go2net.com>
 *  Some changes Copyright (C) 1997 Jon Nelson <jnelson@boa.org>
 *
 *  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 1, 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., 675 Mass Ave, Cambridge, MA 02139, USA.
 *
 */

/* $Id: queue.c,v 1.2 2002/09/28 10:05:00 nmav Exp $*/

#include "boa.h"
#include "queue.h"

/*
 * Name: block_request
 *
 * Description: Moves a request from the ready queue to the blocked queue
 */

void block_request(server_params* params, request * req)
{
    dequeue(&params->request_ready, req);
    enqueue(&params->request_block, req);

    if (req->buffer_end) {
        BOA_FD_SET(req->fd, &params->block_write_fdset);
    } else {
        switch (req->status) {
        case WRITE:
        case PIPE_WRITE:
        case DONE:
            BOA_FD_SET(req->fd, &params->block_write_fdset);
            break;
        case PIPE_READ:
            BOA_FD_SET(req->data_fd, &params->block_read_fdset);
            break;
        case BODY_WRITE:
            BOA_FD_SET(req->post_data_fd, &params->block_write_fdset);
            break;
        default:
            BOA_FD_SET(req->fd, &params->block_read_fdset);
            break;
        }
    }
}

/*
 * Name: ready_request
 *
 * Description: Moves a request from the blocked queue to the ready queue
 */

void ready_request(server_params* params, request * req)
{
    dequeue(&params->request_block, req);
    enqueue(&params->request_ready, req);

    if (req->buffer_end) {
        FD_CLR(req->fd, &params->block_write_fdset);
    } else {
        switch (req->status) {
        case WRITE:
        case PIPE_WRITE:
        case DONE:
            FD_CLR(req->fd, &params->block_write_fdset);
            break;
        case PIPE_READ:
            FD_CLR(req->data_fd, &params->block_read_fdset);
            break;
        case BODY_WRITE:
            FD_CLR(req->post_data_fd, &params->block_write_fdset);
            break;
        default:
            FD_CLR(req->fd, &params->block_read_fdset);
        }
    }
}


/*
 * Name: dequeue
 *
 * Description: Removes a request from its current queue
 */

DEQUEUE_FUNCTION( dequeue, request)

/*
 * Name: enqueue
 *
 * Description: Adds a request to the head of a queue
 */

ENQUEUE_FUNCTION( enqueue, request)

1	nmav	1.1	/*
2	nmav	1.3	* Hydra, an http server
3	nmav	1.1	* Copyright (C) 1995 Paul Phillips <paulp@go2net.com>
4			* Some changes Copyright (C) 1997 Jon Nelson <jnelson@boa.org>
5			*
6			* This program is free software; you can redistribute it and/or modify
7			* it under the terms of the GNU General Public License as published by
8			* the Free Software Foundation; either version 1, or (at your option)
9			* any later version.
10			*
11			* This program is distributed in the hope that it will be useful,
12			* but WITHOUT ANY WARRANTY; without even the implied warranty of
13			* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
14			* GNU General Public License for more details.
15			*
16			* You should have received a copy of the GNU General Public License
17			* along with this program; if not, write to the Free Software
18			* Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
19			*
20			*/
21
22	nmav	1.3	/* $Id: queue.c,v 1.2 2002/09/28 10:05:00 nmav Exp $*/
23	nmav	1.1
24			#include "boa.h"
25	nmav	1.2	#include "queue.h"
26	nmav	1.1
27			/*
28			* Name: block_request
29			*
30			* Description: Moves a request from the ready queue to the blocked queue
31			*/
32
33			void block_request(server_params* params, request * req)
34			{
35			dequeue(&params->request_ready, req);
36			enqueue(&params->request_block, req);
37
38			if (req->buffer_end) {
39			BOA_FD_SET(req->fd, &params->block_write_fdset);
40			} else {
41			switch (req->status) {
42			case WRITE:
43			case PIPE_WRITE:
44			case DONE:
45			BOA_FD_SET(req->fd, &params->block_write_fdset);
46			break;
47			case PIPE_READ:
48			BOA_FD_SET(req->data_fd, &params->block_read_fdset);
49			break;
50			case BODY_WRITE:
51			BOA_FD_SET(req->post_data_fd, &params->block_write_fdset);
52			break;
53			default:
54			BOA_FD_SET(req->fd, &params->block_read_fdset);
55			break;
56			}
57			}
58			}
59
60			/*
61			* Name: ready_request
62			*
63			* Description: Moves a request from the blocked queue to the ready queue
64			*/
65
66			void ready_request(server_params* params, request * req)
67			{
68			dequeue(&params->request_block, req);
69			enqueue(&params->request_ready, req);
70
71			if (req->buffer_end) {
72			FD_CLR(req->fd, &params->block_write_fdset);
73			} else {
74			switch (req->status) {
75			case WRITE:
76			case PIPE_WRITE:
77			case DONE:
78			FD_CLR(req->fd, &params->block_write_fdset);
79			break;
80			case PIPE_READ:
81			FD_CLR(req->data_fd, &params->block_read_fdset);
82			break;
83			case BODY_WRITE:
84			FD_CLR(req->post_data_fd, &params->block_write_fdset);
85			break;
86			default:
87			FD_CLR(req->fd, &params->block_read_fdset);
88			}
89			}
90			}
91
92
93			/*
94			* Name: dequeue
95			*
96			* Description: Removes a request from its current queue
97			*/
98
99	nmav	1.2	DEQUEUE_FUNCTION( dequeue, request)
100	nmav	1.1
101			/*
102			* Name: enqueue
103			*
104			* Description: Adds a request to the head of a queue
105			*/
106
107	nmav	1.2	ENQUEUE_FUNCTION( enqueue, request)
108	nmav	1.1