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/****************************************************************
* *
* Copyright (c) 2001-2018 Fidelity National Information *
* Services, Inc. and/or its subsidiaries. All rights reserved. *
* *
* This source code contains the intellectual property *
* of its copyright holder(s), and is made available *
* under a license. If you do not know the terms of *
* the license, please stop and do not read further. *
* *
****************************************************************/
/*
* ------------------------------------------------------------------------------------------------
* gtcmtr_lke_showrep : sends a lock tree to the requesting node, one lock at a time
* used in : gtcm_server.c
* ------------------------------------------------------------------------------------------------
*/
#include "mdef.h"
#include <stddef.h>
#include <sys/shm.h>
#include "cmidef.h"
#include "hashtab_mname.h" /* needed for cmmdef.h */
#include "cmmdef.h"
#include "mlkdef.h"
#include "gdsroot.h"
#include "gdsblk.h"
#include "gtm_facility.h"
#include "fileinfo.h"
#include "gdsbt.h"
#include "gdsfhead.h"
#include "filestruct.h"
#include "lke.h"
#include "cmi.h"
#include "util.h"
#include "gtcmtr_protos.h"
#include "iosp.h"
#include "gtcm_find_region.h"
#include "gvcmz.h"
#include "gtm_string.h"
#include "interlock.h"
#include "rel_quant.h"
#include "do_shmat.h"
#include "mlk_ops.h"
#define RESET 2
GBLREF connection_struct *curr_entry;
GBLREF gd_region *gv_cur_region;
GBLREF short crash_count;
char gtcmtr_lke_showrep(struct CLB *lnk, show_request *sreq)
{
gd_region *cur_region;
sgmnt_addrs *csa;
mlk_ctldata *lke_ctl;
ssize_t ls_len;
mstr dnode;
show_reply srep;
uint4 status;
boolean_t was_crit;
mlk_pvtctl pctl, pctl2;
cur_region = gv_cur_region = gtcm_find_region(curr_entry, sreq->rnum)->reghead->reg;
if (IS_REG_BG_OR_MM(cur_region))
{
csa = &FILE_INFO(cur_region)->s_addrs;
ls_len = csa->mlkctl_len;
lke_ctl = (mlk_ctldata *)malloc(ls_len);
/* Prevent any modification of the lock space while we make a local copy of it */
pctl.region = cur_region;
pctl.csa = csa;
pctl.ctl = (mlk_ctldata_ptr_t)pctl.csa->mlkctl;
/* No need to set up shrblk just to do an lke_showtree() with no memory dump. */
GRAB_LOCK_CRIT_AND_SYNC(pctl, was_crit);
memcpy((uchar_ptr_t)lke_ctl, pctl.ctl, ls_len);
pctl2 = pctl;
REL_LOCK_CRIT(pctl, was_crit);
pctl2.ctl = lke_ctl;
util_cm_print(lnk, 0, NULL, RESET);
dnode.len = sreq->nodelength;
dnode.addr = sreq->node;
if (lke_ctl->blkroot != 0)
(void)lke_showtree(lnk, &pctl2, sreq->all, sreq->wait, sreq->pid, dnode, FALSE, NULL);
free(lke_ctl);
}
srep.code = CMMS_U_LKESHOW;
lnk->cbl = SIZEOF(srep.code);
lnk->ast = NULL;
#ifndef vinu_marker
assert(0 == offsetof(show_reply, code));
lnk->mbf = (unsigned char *)&srep; /* no need since lnk->mbf can be re-used. vinu 06/27/01 */
status = cmi_write(lnk);
if (CMI_ERROR(status))
{ /* This routine is a server routine; not sure why it does error processing similar to a client. vinu 06/27/01 */
((link_info *)(lnk->usr))->neterr = TRUE;
gvcmz_error(CMMS_U_LKESHOW, status);
} else
lnk->mbf = (unsigned char *)sreq; /* don't restore if lnk->mbf isn't modified. vinu 06/27/01 */
#else
/* server calls to cmi_* should do error processing as a callback. vinu 06/27/01 */
*lnk->mbf = srep.code;
cmi_write(lnk);
#endif
return CM_READ;
}
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