79 lines
3.0 KiB
C
79 lines
3.0 KiB
C
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/****************************************************************
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* *
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* Copyright 2003, 2010 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 "gtm_time.h"
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#include "gdsroot.h"
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#include "gdsbt.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 "jnl.h"
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#ifdef GTM_CRYPT
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#include "gtmcrypt.h"
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#endif
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GBLREF jnl_process_vector *prc_vec;
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GBLREF jnl_gbls_t jgbl;
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void jfh_from_jnl_info (jnl_create_info *info, jnl_file_header *header)
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{
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trans_num db_tn;
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/**** We will write journal file header, epoch and eof in order ****/
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/* Write the file header */
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memset((char *)header, 0, JNL_HDR_LEN); /* note: In Unix, this means we 0-fill 2K REAL_JNL_HDR_LEN + 62K padding */
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memcpy(header->label, JNL_LABEL_TEXT, STR_LIT_LEN(JNL_LABEL_TEXT));
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header->is_little_endian = GTM_IS_LITTLE_ENDIAN;
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assert(NULL != prc_vec);
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JNL_WHOLE_FROM_SHORT_TIME(prc_vec->jpv_time, jgbl.gbl_jrec_time);
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memcpy(&header->who_created, (unsigned char*)prc_vec, SIZEOF(jnl_process_vector));
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memcpy(&header->who_opened, (unsigned char*)prc_vec, SIZEOF(jnl_process_vector));
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/* EPOCHs are written unconditionally in Unix while they are written only for BEFORE_IMAGE in VMS */
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if (JNL_HAS_EPOCH(info))
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header->end_of_data = JNL_HDR_LEN + PINI_RECLEN + EPOCH_RECLEN + PFIN_RECLEN;
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else
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header->end_of_data = JNL_HDR_LEN + PINI_RECLEN + PFIN_RECLEN;
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header->max_jrec_len = info->max_jrec_len;
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header->bov_timestamp = jgbl.gbl_jrec_time;
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header->eov_timestamp = jgbl.gbl_jrec_time;
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db_tn = info->csd->trans_hist.curr_tn;
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header->bov_tn = db_tn;
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header->eov_tn = db_tn;
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header->before_images = info->before_images;
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/* Note that in case of MUPIP JOURNAL -ROLLBACK, we need to set header->repl_state to repl_open although replication
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* is currently not ON in the database. This is so future ROLLBACKs know this journal is replication enabled.
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*/
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header->repl_state = jgbl.mur_rollback ? repl_open : info->repl_state;
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header->data_file_name_length = info->fn_len;
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memcpy(header->data_file_name, info->fn, info->fn_len);
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header->data_file_name[info->fn_len] = '\0';
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header->alignsize = info->alignsize;
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header->autoswitchlimit = info->autoswitchlimit;
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header->epoch_interval = info->epoch_interval;
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header->start_seqno = info->reg_seqno;
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header->end_seqno = info->reg_seqno;
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header->prev_jnl_file_name_length = info->prev_jnl_len; ;
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memcpy(header->prev_jnl_file_name, info->prev_jnl, info->prev_jnl_len);
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header->prev_jnl_file_name[info->prev_jnl_len] = '\0';
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assert(JNL_ALLOC_MIN <= info->alloc);
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header->jnl_alq = info->alloc;
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header->virtual_size = info->alloc;
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header->jnl_deq = info->extend;
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header->checksum = info->checksum;
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GTMCRYPT_ONLY(
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GTMCRYPT_COPY_HASH(info, header);
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)
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}
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