blob: 76f447d32a934548ee8a5376735ff797bd0f7a88 [file] [log] [blame]
/*
* Functions managing stream_interface structures
*
* Copyright 2000-2008 Willy Tarreau <w@1wt.eu>
*
* 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.
*
*/
#include <errno.h>
#include <fcntl.h>
#include <stdio.h>
#include <stdlib.h>
#include <sys/socket.h>
#include <sys/stat.h>
#include <sys/types.h>
#include <common/compat.h>
#include <common/config.h>
#include <common/debug.h>
#include <common/standard.h>
#include <common/ticks.h>
#include <common/time.h>
#include <proto/buffers.h>
#include <proto/client.h>
#include <proto/fd.h>
#include <proto/stream_interface.h>
#include <proto/stream_sock.h>
#include <proto/task.h>
/*
* This function only has to be called once after a wakeup event in case of
* suspected timeout. It controls the stream interface timeouts and sets
* si->flags accordingly. It does NOT close anything, as this timeout may
* be used for any purpose. It returns 1 if the timeout fired, otherwise
* zero.
*/
int stream_int_check_timeouts(struct stream_interface *si)
{
if (tick_is_expired(si->exp, now_ms)) {
si->flags |= SI_FL_EXP;
return 1;
}
return 0;
}
/* to be called only when in SI_ST_DIS with SI_FL_ERR */
void stream_int_report_error(struct stream_interface *si)
{
if (!si->err_type)
si->err_type = SI_ET_DATA_ERR;
si->ob->flags |= BF_WRITE_ERROR;
si->ib->flags |= BF_READ_ERROR;
}
/*
* Erase any content from input and output buffers, and return a message into
* the output buffer. The message is provided as a "chunk". If it is null,
* then an empty message is used.
*/
void stream_int_return(struct stream_interface *si, const struct chunk *msg)
{
buffer_erase(si->ib);
buffer_cut_tail(si->ob);
if (msg && msg->len)
buffer_write(si->ob, msg->str, msg->len);
}
/*
* Returns a message to the client ; the connection is shut down for read,
* and the request is cleared so that no server connection can be initiated.
* The buffer is marked for read shutdown on the other side to protect the
* message, and the buffer write is enabled. The message is contained in a
* "chunk". If it is null, then an empty message is used. The reply buffer
* doesn't need to be empty before this. The goal of this function is to
* return error messages to a client.
*/
void stream_int_retnclose(struct stream_interface *si, const struct chunk *msg)
{
buffer_abort(si->ib);
buffer_erase(si->ob);
buffer_shutr_now(si->ob);
if (msg && msg->len)
buffer_write(si->ob, msg->str, msg->len);
si->ob->wex = tick_add_ifset(now_ms, si->ob->wto);
buffer_auto_close(si->ob);
}
/*
* Local variables:
* c-indent-level: 8
* c-basic-offset: 8
* End:
*/