076b810c1e
Because each thread has their own epoll file descriptor and only one thread can process a DCB, it makes sense to move to a per thread zombie queue. This removes one of the last restrictions on scalability.
90 lines
2.2 KiB
C
90 lines
2.2 KiB
C
/*
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* Copyright (c) 2016 MariaDB Corporation Ab
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*
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* Use of this software is governed by the Business Source License included
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* in the LICENSE.TXT file and at www.mariadb.com/bsl.
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*
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* Change Date: 2019-07-01
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*
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* On the date above, in accordance with the Business Source License, use
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* of this software will be governed by version 2 or later of the General
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* Public License.
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*/
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/**
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*
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* @verbatim
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* Revision History
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*
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* Date Who Description
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* 05-09-2014 Martin Brampton Initial implementation
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*
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* @endverbatim
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*/
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// To ensure that ss_info_assert asserts also when builing in non-debug mode.
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#if !defined(SS_DEBUG)
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#define SS_DEBUG
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#endif
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#if defined(NDEBUG)
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#undef NDEBUG
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#endif
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#include <stdio.h>
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#include <stdlib.h>
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#include <string.h>
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#include <maxscale/listener.h>
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#include <maxscale/dcb.h>
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/**
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* test1 Allocate a dcb and do lots of other things
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*
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*/
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static int
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test1()
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{
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DCB *dcb, *extra, *clone;
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int size = 100;
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int bite1 = 35;
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int bite2 = 60;
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int bite3 = 10;
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int buflen;
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SERV_LISTENER dummy;
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/* Single buffer tests */
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ss_dfprintf(stderr,
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"testdcb : creating buffer with type DCB_ROLE_SERVICE_LISTENER");
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dcb = dcb_alloc(DCB_ROLE_SERVICE_LISTENER, &dummy);
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printDCB(dcb);
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ss_info_dassert(dcb_isvalid(dcb), "New DCB must be valid");
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ss_dfprintf(stderr, "\t..done\nAllocated dcb.");
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clone = dcb_clone(dcb);
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ss_dfprintf(stderr, "\t..done\nCloned dcb");
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printAllDCBs();
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ss_info_dassert(true, "Something is true");
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ss_dfprintf(stderr, "\t..done\n");
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dcb_close(dcb);
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ss_dfprintf(stderr, "Freed original dcb");
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ss_info_dassert(!dcb_isvalid(dcb), "Freed DCB must not be valid");
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ss_dfprintf(stderr, "\t..done\nMake clone DCB a zombie");
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clone->state = DCB_STATE_NOPOLLING;
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dcb_close(clone);
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ss_dfprintf(stderr, "\t..done\nProcess the zombies list");
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dcb_process_zombies(0);
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ss_dfprintf(stderr, "\t..done\nCheck clone no longer valid");
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ss_info_dassert(!dcb_isvalid(clone), "After zombie processing, clone DCB must not be valid");
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ss_dfprintf(stderr, "\t..done\n");
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return 0;
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}
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int main(int argc, char **argv)
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{
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int result = 0;
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result += test1();
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exit(result);
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}
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