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https://github.com/haproxy/haproxy.git
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fe3718ab79
All the processing has now completely been split in layers. As of now, everything is still in process_session() which is not the right place, but the code sequence works. Timeouts, retries, errors, all work. The shutdown sequence has been strictly applied: BF_SHUTR/BF_SHUTW are only assigned by lower layers. Upper layers can only indicate their wish to close using BF_SHUTR_NOW and BF_SHUTW_NOW. When a shutdown is performed on a stream interface, the buffer flags are updated accordingly and re-checked by upper layers. A lot of care has been taken to ensure that aborts during intermediate connection setups are correctly handled and shutdowns correctly propagated to both buffers. A future evolution would consist in ensuring that BF_SHUT?_NOW may be set at any time, and applies only when the buffer is empty. This might help with error messages, but might complicate the processing of data remaining in buffers. Some useless buffer flag combinations have been removed. Stat counters are still broken (eg: per-server total number of sessions). Error messages should be delayed to the close instant and be produced by protocol. Many functions must now move to proper locations.
66 lines
1.6 KiB
C
66 lines
1.6 KiB
C
/*
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* Functions managing stream_interface structures
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*
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* Copyright 2000-2008 Willy Tarreau <w@1wt.eu>
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License
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* as published by the Free Software Foundation; either version
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* 2 of the License, or (at your option) any later version.
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*
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*/
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#include <errno.h>
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#include <fcntl.h>
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#include <stdio.h>
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#include <stdlib.h>
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#include <sys/socket.h>
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#include <sys/stat.h>
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#include <sys/types.h>
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#include <common/compat.h>
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#include <common/config.h>
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#include <common/debug.h>
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#include <common/standard.h>
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#include <common/ticks.h>
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#include <common/time.h>
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#include <proto/buffers.h>
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#include <proto/client.h>
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#include <proto/fd.h>
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#include <proto/stream_sock.h>
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#include <proto/task.h>
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/*
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* This function only has to be called once after a wakeup event in case of
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* suspected timeout. It controls the stream interface timeouts and sets
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* si->flags accordingly. It does NOT close anything, as this timeout may
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* be used for any purpose. It returns 1 if the timeout fired, otherwise
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* zero.
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*/
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int stream_int_check_timeouts(struct stream_interface *si)
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{
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if (tick_is_expired(si->exp, now_ms)) {
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si->flags |= SI_FL_EXP;
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return 1;
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}
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return 0;
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}
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/* to be called only when in SI_ST_DIS with SI_FL_ERR */
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void stream_int_report_error(struct stream_interface *si)
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{
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if (!si->err_type)
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si->err_type = SI_ET_DATA_ERR;
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si->ob->flags |= BF_WRITE_ERROR;
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si->ib->flags |= BF_READ_ERROR;
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}
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/*
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* Local variables:
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* c-indent-level: 8
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* c-basic-offset: 8
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* End:
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*/
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