71 lines
2.8 KiB
C
71 lines
2.8 KiB
C
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/****************************************************************
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* *
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* Copyright 2010, 2011 Fidelity Information Services, Inc *
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* *
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* This source code contains the intellectual property *
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* of its copyright holder(s), and is made available *
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* under a license. If you do not know the terms of *
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* the license, please stop and do not read further. *
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* *
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****************************************************************/
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#include "mdef.h"
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#include "gdsroot.h" /* for gdsfhead.h */
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#include "gdsblk.h"
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#include "gdsbt.h" /* for gdsfhead.h */
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#include "gdskill.h"
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#include "gtm_facility.h"
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#include "fileinfo.h"
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#include "gdsfhead.h"
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#include "filestruct.h"
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#include "gdscc.h"
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#include "error.h"
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#include "jnl.h" /* needed for tp.h */
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#include "hashtab_int4.h" /* needed for tp.h */
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#include "buddy_list.h" /* needed for tp.h */
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#include "tp.h"
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#include "tp_restart.h"
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#include "util.h"
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GBLREF sgm_info *first_sgm_info;
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GBLREF gv_namehead *reset_gv_target;
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GBLREF int tprestart_state;
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error_def(ERR_TPRETRY);
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#ifdef GTM_TRIGGER
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/* This code is modeled around "updproc_ch" in updproc.c and is used by the trigger_* modules */
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CONDITION_HANDLER(trigger_tpwrap_ch)
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{
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int rc;
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START_CH;
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if ((int)ERR_TPRETRY == SIGNAL)
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{
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assert(TPRESTART_STATE_NORMAL == tprestart_state);
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tprestart_state = TPRESTART_STATE_NORMAL;
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assert(NULL != first_sgm_info);
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/* This only happens at the outer-most layer so state should be normal now */
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rc = tp_restart(1, !TP_RESTART_HANDLES_ERRORS);
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assert(0 == rc);
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assert(TPRESTART_STATE_NORMAL == tprestart_state);
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/* "reset_gv_target" might have been set to a non-default value if we are deep inside "gvcst_put"
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* when the restart occurs. Reset it before unwinding the gvcst_put C stack frame. Normally gv_target would
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* be set to what is in reset_gv_target (using the RESET_GV_TARGET macro) but that could lead to gv_target
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* and gv_currkey going out of sync depending on where in gvcst_put we got the restart (e.g. if we got it
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* in gvcst_root_search before gv_currkey was initialized but after gv_target was). Therefore we instead set
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* "reset_gv_target" back to its default value leaving "gv_target" untouched. This is ok to do so since as
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* part of the tp restart, gv_target and gv_currkey are anyways going to be reset to what they were at the
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* beginning of the TSTART and therefore are guaranteed to be back in sync. Not resetting "reset_gv_target"
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* would also cause an assert (on this being the invalid) in "gvtr_match_n_invoke" to fail in a restart case.
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*/
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DBGEHND((stderr, "trigger_tpwrap_ch: TP restart encountered\n"));
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reset_gv_target = INVALID_GV_TARGET;
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UNWIND(NULL, NULL);
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}
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DBGEHND((stderr, "trigger_tp_wrap_ch: Condition handler passing signal %d on to next handler\n", SIGNAL));
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NEXTCH;
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}
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#endif
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