void dse_m_rest (
block_id blk, /* block number */
unsigned char *bml_list, /* start of local list of local bit maps */
int4 bml_size, /* size of each entry in *bml_list */
sm_vuint_ptr_t blks_ptr, /* total free blocks */
bool in_dir_tree)
{
sm_uc_ptr_t bp, b_top, rp, r_top, bml_ptr, np, ptr;
unsigned char util_buff[MAX_UTIL_LEN];
block_id next;
int util_len;
int4 dummy_int;
cache_rec_ptr_t dummy_cr;
int4 bml_index;
short level, rsize;
int4 bplmap;
error_def(ERR_DSEBLKRDFAIL);
if(!(bp = t_qread (blk, &dummy_int, &dummy_cr)))
rts_error(VARLSTCNT(1) ERR_DSEBLKRDFAIL);
if (((blk_hdr_ptr_t) bp)->bsiz > cs_addrs->hdr->blk_size)
b_top = bp + cs_addrs->hdr->blk_size;
else if (((blk_hdr_ptr_t) bp)->bsiz < sizeof(blk_hdr))
b_top = bp + sizeof(blk_hdr);
else
b_top = bp + ((blk_hdr_ptr_t) bp)->bsiz;
level = ((blk_hdr_ptr_t)bp)->levl;
bplmap = cs_addrs->hdr->bplmap;
for (rp = bp + sizeof (blk_hdr); rp < b_top ;rp = r_top)
{ if (in_dir_tree || level > 1) /* reread block because it may have been flushed from read */
{ if (!(np = t_qread(blk,&dummy_int,&dummy_cr))) /* cache due to LRU buffer scheme and reads in recursive */
rts_error(VARLSTCNT(1) ERR_DSEBLKRDFAIL); /* calls to dse_m_rest. */
if (np != bp)
{ b_top = np + (b_top - bp);
rp = np + (rp - bp);
r_top = np + (r_top - bp);
bp = np;
}
}
GET_SHORT(rsize,&((rec_hdr_ptr_t)rp)->rsiz);
r_top = rp + rsize;
if (r_top > b_top)
r_top = b_top;
if (r_top - rp < (sizeof (rec_hdr) + sizeof (block_id)))
break;
if (in_dir_tree && level == 0)
{
for (ptr = rp + sizeof(rec_hdr); ; )
{
if (*ptr++ == 0 && *ptr++ == 0)
break;
}
GET_LONG(next,ptr);
}
else
GET_LONG(next,r_top - sizeof (block_id));
if (next < 0 || next >= cs_addrs->ti->total_blks ||
(next / bplmap * bplmap == next))
{ memcpy(util_buff,"Invalid pointer in block ",25);
util_len = 25;
util_len += i2hex_nofill(blk, &util_buff[util_len], 8);
memcpy(&util_buff[util_len], " record offset ",15);
util_len += 15;
util_len += i2hex_nofill((int)(rp - bp), &util_buff[util_len], 4);
util_buff[util_len] = 0;
util_out_print((char*)util_buff,TRUE);
continue;
}
bml_index = next / bplmap;
bml_ptr = bml_list + bml_index * bml_size;
if (bml_busy(next - next / bplmap * bplmap, bml_ptr + sizeof(blk_hdr)))
{ *blks_ptr = *blks_ptr - 1;
if (((blk_hdr_ptr_t) bp)->levl > 1)
{ dse_m_rest (next, bml_list, bml_size, blks_ptr, in_dir_tree);
}
else if (in_dir_tree)
{ assert(((blk_hdr_ptr_t) bp)->levl == 0 || ((blk_hdr_ptr_t) bp)->levl == 1);
dse_m_rest (next, bml_list, bml_size, blks_ptr, ((blk_hdr_ptr_t)bp)->levl);
}
}
}
return;
}
void dse_maps(void)
{
block_id blk, bml_blk;
blk_segment *bs1, *bs_ptr;
int4 blk_seg_cnt, blk_size; /* needed for BLK_INIT, BLK_SEG and BLK_FINI macros */
sm_uc_ptr_t bp;
char util_buff[MAX_UTIL_LEN];
int4 bml_size, bml_list_size, blk_index, bml_index;
int4 total_blks, blks_in_bitmap;
int4 bplmap, dummy_int;
unsigned char *bml_list;
cache_rec_ptr_t cr, dummy_cr;
bt_rec_ptr_t btr;
int util_len;
uchar_ptr_t blk_ptr;
boolean_t was_crit;
uint4 jnl_status;
srch_blk_status blkhist;
jnl_private_control *jpc;
jnl_buffer_ptr_t jbp;
sgmnt_addrs *csa;
sgmnt_data_ptr_t csd;
if (CLI_PRESENT == cli_present("BUSY") || CLI_PRESENT == cli_present("FREE") ||
CLI_PRESENT == cli_present("MASTER") || CLI_PRESENT == cli_present("RESTORE_ALL"))
{
if (gv_cur_region->read_only)
rts_error(VARLSTCNT(4) ERR_DBRDONLY, 2, DB_LEN_STR(gv_cur_region));
}
CHECK_AND_RESET_UPDATE_ARRAY; /* reset update_array_ptr to update_array */
csa = cs_addrs;
assert(&FILE_INFO(gv_cur_region)->s_addrs == csa);
was_crit = csa->now_crit;
if (csa->critical)
crash_count = csa->critical->crashcnt;
csd = csa->hdr;
bplmap = csd->bplmap;
if (CLI_PRESENT == cli_present("BLOCK"))
{
if (!cli_get_hex("BLOCK", (uint4 *)&blk))
return;
if (blk < 0 || blk >= csa->ti->total_blks)
{
util_out_print("Error: invalid block number.", TRUE);
return;
}
patch_curr_blk = blk;
}
else
blk = patch_curr_blk;
if (CLI_PRESENT == cli_present("FREE"))
{
if (0 == bplmap)
{
util_out_print("Cannot perform map updates: bplmap field of file header is zero.", TRUE);
return;
}
if (blk / bplmap * bplmap == blk)
{
util_out_print("Cannot perform action on a map block.", TRUE);
return;
}
bml_blk = blk / bplmap * bplmap;
bm_setmap(bml_blk, blk, FALSE);
return;
}
if (CLI_PRESENT == cli_present("BUSY"))
{
if (0 == bplmap)
{
util_out_print("Cannot perform map updates: bplmap field of file header is zero.", TRUE);
return;
}
if (blk / bplmap * bplmap == blk)
{
util_out_print("Cannot perform action on a map block.", TRUE);
return;
}
bml_blk = blk / bplmap * bplmap;
bm_setmap(bml_blk, blk, TRUE);
return;
}
blk_size = csd->blk_size;
if (CLI_PRESENT == cli_present("MASTER"))
{
if (0 == bplmap)
{
util_out_print("Cannot perform maps updates: bplmap field of file header is zero.", TRUE);
return;
}
if (!was_crit)
grab_crit(gv_cur_region);
bml_blk = blk / bplmap * bplmap;
if (dba_mm == csd->acc_meth)
bp = MM_BASE_ADDR(csa) + (off_t)bml_blk * blk_size;
else
{
assert(dba_bg == csd->acc_meth);
if (!(bp = t_qread(bml_blk, &dummy_int, &dummy_cr)))
rts_error(VARLSTCNT(1) ERR_DSEBLKRDFAIL);
}
if ((csa->ti->total_blks / bplmap) * bplmap == bml_blk)
total_blks = (csa->ti->total_blks - bml_blk);
else
total_blks = bplmap;
if (NO_FREE_SPACE == bml_find_free(0, bp + SIZEOF(blk_hdr), total_blks))
bit_clear(bml_blk / bplmap, csa->bmm);
else
bit_set(bml_blk / bplmap, csa->bmm);
if (bml_blk > csa->nl->highest_lbm_blk_changed)
csa->nl->highest_lbm_blk_changed = bml_blk;
if (!was_crit)
rel_crit(gv_cur_region);
return;
}
if (CLI_PRESENT == cli_present("RESTORE_ALL"))
{
if (0 == bplmap)
{
util_out_print("Cannot perform maps updates: bplmap field of file header is zero.", TRUE);
return;
}
total_blks = csa->ti->total_blks;
assert(ROUND_DOWN2(blk_size, 2 * SIZEOF(int4)) == blk_size);
bml_size = BM_SIZE(bplmap);
bml_list_size = (total_blks + bplmap - 1) / bplmap * bml_size;
bml_list = (unsigned char *)malloc(bml_list_size);
for (blk_index = 0, bml_index = 0; blk_index < total_blks; blk_index += bplmap, bml_index++)
bml_newmap((blk_hdr_ptr_t)(bml_list + bml_index * bml_size), bml_size, csa->ti->curr_tn);
if (!was_crit)
{
grab_crit(gv_cur_region);
csa->hold_onto_crit = TRUE; /* need to do this AFTER grab_crit */
}
blk = get_dir_root();
assert(blk < bplmap);
csa->ti->free_blocks = total_blks - DIVIDE_ROUND_UP(total_blks, bplmap);
bml_busy(blk, bml_list + SIZEOF(blk_hdr));
csa->ti->free_blocks = csa->ti->free_blocks - 1;
dse_m_rest(blk, bml_list, bml_size, &csa->ti->free_blocks, TRUE);
for (blk_index = 0, bml_index = 0; blk_index < total_blks; blk_index += bplmap, bml_index++)
{
t_begin_crit(ERR_DSEFAIL);
CHECK_TN(csa, csd, csd->trans_hist.curr_tn); /* can issue rts_error TNTOOLARGE */
CWS_RESET;
CHECK_AND_RESET_UPDATE_ARRAY; /* reset update_array_ptr to update_array */
assert(csa->ti->early_tn == csa->ti->curr_tn);
blk_ptr = bml_list + bml_index * bml_size;
blkhist.blk_num = blk_index;
if (!(blkhist.buffaddr = t_qread(blkhist.blk_num, &blkhist.cycle, &blkhist.cr)))
rts_error(VARLSTCNT(1) ERR_DSEBLKRDFAIL);
BLK_INIT(bs_ptr, bs1);
BLK_SEG(bs_ptr, blk_ptr + SIZEOF(blk_hdr), bml_size - SIZEOF(blk_hdr));
BLK_FINI(bs_ptr, bs1);
t_write(&blkhist, (unsigned char *)bs1, 0, 0, LCL_MAP_LEVL, TRUE, FALSE, GDS_WRITE_KILLTN);
BUILD_AIMG_IF_JNL_ENABLED(csd, csa->ti->curr_tn);
t_end(&dummy_hist, NULL, csa->ti->curr_tn);
}
/* Fill in master map */
for (blk_index = 0, bml_index = 0; blk_index < total_blks; blk_index += bplmap, bml_index++)
{
blks_in_bitmap = (blk_index + bplmap <= total_blks) ? bplmap : total_blks - blk_index;
assert(1 < blks_in_bitmap); /* the last valid block in the database should never be a bitmap block */
if (NO_FREE_SPACE != bml_find_free(0, (bml_list + bml_index * bml_size) + SIZEOF(blk_hdr), blks_in_bitmap))
bit_set(blk_index / bplmap, csa->bmm);
else
bit_clear(blk_index / bplmap, csa->bmm);
if (blk_index > csa->nl->highest_lbm_blk_changed)
csa->nl->highest_lbm_blk_changed = blk_index;
}
if (!was_crit)
{
csa->hold_onto_crit = FALSE; /* need to do this before the rel_crit */
rel_crit(gv_cur_region);
}
if (unhandled_stale_timer_pop)
process_deferred_stale();
free(bml_list);
csd->kill_in_prog = csd->abandoned_kills = 0;
return;
}
MEMCPY_LIT(util_buff, "!/Block ");
util_len = SIZEOF("!/Block ") - 1;
util_len += i2hex_nofill(blk, (uchar_ptr_t)&util_buff[util_len], 8);
memcpy(&util_buff[util_len], " is marked !AD in its local bit map.!/",
SIZEOF(" is marked !AD in its local bit map.!/") - 1);
util_len += SIZEOF(" is marked !AD in its local bit map.!/") - 1;
util_buff[util_len] = 0;
if (!was_crit)
grab_crit(gv_cur_region);
util_out_print(util_buff, TRUE, 4, dse_is_blk_free(blk, &dummy_int, &dummy_cr) ? "free" : "busy");
if (!was_crit)
rel_crit(gv_cur_region);
return;
}
