255 lines
7.4 KiB
C
255 lines
7.4 KiB
C
/****************************************************************
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* *
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* Copyright 2001, 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 "gtm_string.h"
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#include "gdsroot.h"
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#include "gtm_facility.h"
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#include "fileinfo.h"
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#include "gdsbt.h"
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#include "gdsfhead.h"
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#include "gdsblk.h"
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#include "min_max.h" /* needed for gdsblkops.h */
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#include "gdsblkops.h"
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#include "gdscc.h"
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#include "cli.h"
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#include "copy.h"
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#include "filestruct.h"
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#include "jnl.h"
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#include "skan_offset.h"
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#include "skan_rnum.h"
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#include "dse.h"
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/* Include prototypes */
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#include "t_qread.h"
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#include "t_write.h"
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#include "t_end.h"
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#include "t_begin_crit.h"
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#include "gvcst_blk_build.h"
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#include "util.h"
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#include "t_abort.h"
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GBLREF char *update_array, *update_array_ptr;
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GBLREF uint4 update_array_size;
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GBLREF srch_hist dummy_hist;
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GBLREF block_id patch_curr_blk;
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GBLREF sgmnt_addrs *cs_addrs;
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GBLREF sgmnt_data_ptr_t cs_data;
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GBLREF gd_addr *gd_header;
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GBLREF char patch_comp_key[MAX_KEY_SZ + 1];
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GBLREF unsigned char patch_comp_count;
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GBLREF gd_region *gv_cur_region;
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GBLREF cw_set_element cw_set[];
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GBLREF unsigned char *non_tp_jfb_buff_ptr;
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void dse_adrec(void)
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{
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char data[MAX_LINE], key[MAX_KEY_SZ + 1];
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unsigned char cc;
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sm_uc_ptr_t new_bp, lbp, b_top, rp, r_top, key_top;
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short int size, new_len, rsize;
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int data_len, key_len;
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int4 blk_seg_cnt, blk_size;
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block_id blk;
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blk_segment *bs1, *bs_ptr;
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srch_blk_status blkhist;
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error_def(ERR_CPBEYALLOC);
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error_def(ERR_DBRDONLY);
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error_def(ERR_DSEBLKRDFAIL);
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error_def(ERR_DSEFAIL);
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error_def(ERR_GVIS);
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error_def(ERR_REC2BIG);
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if (gv_cur_region->read_only)
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rts_error(VARLSTCNT(4) ERR_DBRDONLY, 2, DB_LEN_STR(gv_cur_region));
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CHECK_AND_RESET_UPDATE_ARRAY; /* reset update_array_ptr to update_array */
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if (cli_present("BLOCK") == CLI_PRESENT)
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{
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if(!cli_get_hex("BLOCK", (uint4 *)&blk))
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return;
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patch_curr_blk = blk;
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}
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if (patch_curr_blk < 0 || patch_curr_blk >= cs_addrs->ti->total_blks || !(patch_curr_blk % cs_addrs->hdr->bplmap))
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{
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util_out_print("Error: invalid block number.", TRUE);
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return;
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}
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if (cli_present("KEY") != CLI_PRESENT)
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{
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util_out_print("Error: key must be specified.", TRUE);
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return;
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}
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if (!dse_getki(&key[0], &key_len, LIT_AND_LEN("KEY")))
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return;
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t_begin_crit(ERR_DSEFAIL);
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blk_size = cs_addrs->hdr->blk_size;
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blkhist.blk_num = patch_curr_blk;
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if (!(blkhist.buffaddr = t_qread(blkhist.blk_num, &blkhist.cycle, &blkhist.cr)))
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rts_error(VARLSTCNT(1) ERR_DSEBLKRDFAIL);
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lbp = (uchar_ptr_t)malloc(blk_size);
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memcpy(lbp, blkhist.buffaddr, blk_size);
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if (((blk_hdr_ptr_t)lbp)->bsiz > blk_size)
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((blk_hdr_ptr_t)lbp)->bsiz = blk_size;
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else if (((blk_hdr_ptr_t)lbp)->bsiz < SIZEOF(blk_hdr))
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((blk_hdr_ptr_t)lbp)->bsiz = SIZEOF(blk_hdr);
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b_top = lbp + ((blk_hdr_ptr_t)lbp)->bsiz;
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if (((blk_hdr_ptr_t)lbp)->levl)
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{
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if (cli_present("POINTER") != CLI_PRESENT)
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{
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util_out_print("Error: block pointer must be specified for this index block record.", TRUE);
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free(lbp);
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t_abort(gv_cur_region, cs_addrs);
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return;
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}
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if (!cli_get_hex("POINTER", (uint4 *)&blk))
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{
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t_abort(gv_cur_region, cs_addrs);
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free(lbp);
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return;
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}
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if (blk < 0 || blk >= cs_addrs->ti->total_blks || !(blk % cs_addrs->hdr->bplmap))
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{
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util_out_print("Error: pointer is an invalid block number.", TRUE);
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free(lbp);
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t_abort(gv_cur_region, cs_addrs);
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return;
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}
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MEMCP(&data[0], (char *)&blk, 0, SIZEOF(block_id), SIZEOF(block_id));
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data_len = SIZEOF(block_id);
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} else
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{
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if (cli_present("DATA") != CLI_PRESENT)
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{
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util_out_print("Error: data must be specified for this data block record.", TRUE);
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free(lbp);
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t_abort(gv_cur_region, cs_addrs);
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return;
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}
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if (FALSE == dse_data(&data[0], &data_len))
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{
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free(lbp);
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t_abort(gv_cur_region, cs_addrs);
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return;
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}
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if (key_len + data_len > cs_addrs->hdr->max_rec_size)
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{
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rts_error(VARLSTCNT(10) ERR_REC2BIG, 4, key_len + data_len, (int4)cs_addrs->hdr->max_rec_size,
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REG_LEN_STR(gv_cur_region), ERR_GVIS, 2, LEN_AND_STR(key));
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}
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}
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if (cli_present("RECORD") == CLI_PRESENT)
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{
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if (!(rp = skan_rnum(lbp, TRUE)))
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{
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free(lbp);
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t_abort(gv_cur_region, cs_addrs);
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return;
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}
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} else if (cli_present("OFFSET") == CLI_PRESENT)
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{
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if (!(rp = skan_offset(lbp, TRUE)))
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{
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free(lbp);
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t_abort(gv_cur_region, cs_addrs);
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return;
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}
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} else
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{
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util_out_print("Error: must specify a record number or offset for the record to be added.", TRUE);
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free(lbp);
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t_abort(gv_cur_region, cs_addrs);
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return;
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}
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new_bp = (uchar_ptr_t)malloc(blk_size);
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size = (key_len < patch_comp_count) ? key_len : patch_comp_count;
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for (cc = 0; cc < size && patch_comp_key[cc] == key[cc]; cc++)
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;
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((rec_hdr_ptr_t)new_bp)->cmpc = cc;
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new_len = key_len - cc + data_len + SIZEOF(rec_hdr);
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PUT_SHORT(&((rec_hdr_ptr_t)new_bp)->rsiz, new_len);
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MEMCP(new_bp, &key[cc], SIZEOF(rec_hdr), key_len - cc, blk_size);
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MEMCP(new_bp, &data[0], SIZEOF(rec_hdr) + key_len - cc, data_len, blk_size);
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if (rp < b_top)
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{
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GET_SHORT(rsize, &((rec_hdr_ptr_t)rp)->rsiz);
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if (rsize < SIZEOF(rec_hdr))
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r_top = rp + SIZEOF(rec_hdr);
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else
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r_top = rp + rsize;
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if (r_top >= b_top)
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r_top = b_top;
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if (((blk_hdr_ptr_t)lbp)->levl)
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key_top = r_top - SIZEOF(block_id);
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else
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{
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for (key_top = rp + SIZEOF(rec_hdr); key_top < r_top; )
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if (!*key_top++ && !*key_top++)
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break;
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}
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if (((rec_hdr_ptr_t)rp)->cmpc > patch_comp_count)
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cc = patch_comp_count;
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else
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cc = ((rec_hdr_ptr_t)rp)->cmpc;
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size = key_top - rp - SIZEOF(rec_hdr);
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if (size > SIZEOF(patch_comp_key) - 2 - cc)
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size = SIZEOF(patch_comp_key) - 2 - cc;
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if (size < 0)
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size = 0;
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memcpy(&patch_comp_key[cc], rp + SIZEOF(rec_hdr), size);
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patch_comp_count = cc + size;
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size = (key_len < patch_comp_count) ? key_len : patch_comp_count;
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for (cc = 0; cc < size && patch_comp_key[cc] == key[cc]; cc++)
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;
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((rec_hdr_ptr_t)(new_bp + new_len))->cmpc = cc;
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rsize = patch_comp_count - cc + r_top - key_top + SIZEOF(rec_hdr);
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PUT_SHORT(&((rec_hdr_ptr_t)(new_bp + new_len))->rsiz, rsize);
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MEMCP(new_bp, &patch_comp_key[cc], new_len + SIZEOF(rec_hdr), patch_comp_count - cc, blk_size);
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MEMCP(new_bp, key_top, new_len + SIZEOF(rec_hdr) + patch_comp_count - cc, b_top - key_top, blk_size);
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new_len += patch_comp_count - cc + SIZEOF(rec_hdr) + b_top - key_top;
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}
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if (rp - lbp + new_len > blk_size)
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{
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util_out_print("Error: record too large for remaining space in block.", TRUE);
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free(lbp);
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free(new_bp);
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t_abort(gv_cur_region, cs_addrs);
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return;
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}
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memcpy(rp, new_bp, new_len);
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free(new_bp);
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((blk_hdr_ptr_t)lbp)->bsiz += new_len + (unsigned int)(rp - b_top);
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BLK_INIT(bs_ptr, bs1);
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BLK_SEG(bs_ptr, (uchar_ptr_t)lbp + SIZEOF(blk_hdr), (int)((blk_hdr_ptr_t)lbp)->bsiz - SIZEOF(blk_hdr));
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if (!BLK_FINI(bs_ptr, bs1))
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{
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util_out_print("Error: bad blk build.", TRUE);
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free(lbp);
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t_abort(gv_cur_region, cs_addrs);
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return;
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}
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t_write(&blkhist, (unsigned char *)bs1, 0, 0, ((blk_hdr_ptr_t)lbp)->levl, TRUE, FALSE, GDS_WRITE_KILLTN);
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BUILD_AIMG_IF_JNL_ENABLED(cs_data, non_tp_jfb_buff_ptr, cs_addrs->ti->curr_tn);
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t_end(&dummy_hist, NULL, TN_NOT_SPECIFIED);
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free(lbp);
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return;
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}
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