fis-gtm/sr_port/mupipbckup.h

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/****************************************************************
* *
* Copyright 2001, 2010 Fidelity Information Services, Inc *
* *
* 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. *
* *
****************************************************************/
/* mupipbckup.h -- requires gdsfhead.h in front of this.
*/
typedef enum
{
backup_to_file = 0,
backup_to_exec,
backup_to_tcp
} backup_type;
typedef enum
{
need_to_free_space = 0,
need_to_del_tempfile,
need_to_rel_crit,
num_of_clnup_stage
} clnup_stage;
typedef enum
{
keep_going = 0,
give_up_before_create_tempfile,
give_up_after_create_tempfile,
num_backup_proc_status
} backup_proc_status;
/* ATTN: the first four items in this structure need to be identical to those
* in structure tp_region in tp.h
*/
typedef struct backup_reg_list_struct
{
struct backup_reg_list_struct *fPtr;
struct gd_region_struct *reg;
gd_id unique_file_id; /* both for VMS and UNIX */
mstr backup_file;
short crashcnt, filler;
backup_proc_status not_this_time;
backup_type backup_to;
sgmnt_data_ptr_t backup_hdr;
trans_num tn;
block_id last_blk_at_last_bkup;
int backup_fd;
char backup_tempfile[256];
} backup_reg_list;
#define BACKUP_TEMPFILE_PREFIX "gtm_online_backup"
#ifdef UNIX
#define BACKUP_READ_SIZE (64 * 1024)
#else
#define BACKUP_READ_SIZE (32 * 1024 - DISK_BLOCK_SIZE)
#endif
#define BACKUP_TEMPFILE_BUFF_SIZE (BACKUP_READ_SIZE + SIZEOF(muinc_blk_hdr))
#define BLOCKING_FACTOR 32
#define STARTING_BLOCKS 16
#define EXTEND_SIZE 256
#define INTERNAL_ERROR "Internal MUPIP incremental backup error"
#define MAX_TEMP_OPEN_TRY 15
#define MAX_MUBCLNUP_STAGE 2
#define DEFAULT_BKRS_PORT 6100
#define DEFAULT_BKRS_TIMEOUT 30
#define END_MSG "END OF SAVED BLOCKS"
#define HDR_MSG "END OF FILE HEADER"
#define MAP_MSG "END OF MASTER MAP"
LITREF mval mu_bin_datefmt;
boolean_t backup_block(sgmnt_addrs *csa, block_id blk, cache_rec_ptr_t backup_cr, sm_uc_ptr_t backup_blk_p);
bool mubfilcpy(backup_reg_list *list);
bool mubgetfil(backup_reg_list *list, char *name, unsigned short len);
bool mubinccpy(backup_reg_list *list);
bool mubgetfil(backup_reg_list *list, char *name, unsigned short len);
boolean_t backup_buffer_flush(gd_region *reg);
void mubclnup(backup_reg_list *curr_ptr, clnup_stage stage);
#ifdef VMS
void mubexpfilnam(backup_reg_list *list);
#elif defined(UNIX)
void mubexpfilnam(char *dirname, unsigned int dirlen, backup_reg_list *list);
#else
#error Unsupported Platform
#endif
gd_region *mubfndreg(unsigned char *regbuf, unsigned short len);
void mup_bak_mag(void);
void mup_bak_pause(void);