/**********************************************************************//**
Reads from an undo log update record the system field values of the old
version.
@return remaining part of undo log record after reading these values */
UNIV_INTERN
byte*
trx_undo_update_rec_get_sys_cols(
/*=============================*/
byte* ptr, /*!< in: remaining part of undo
log record after reading
general parameters */
trx_id_t* trx_id, /*!< out: trx id */
roll_ptr_t* roll_ptr, /*!< out: roll ptr */
ulint* info_bits) /*!< out: info bits state */
{
/* Read the state of the info bits */
*info_bits = mach_read_from_1(ptr);
ptr += 1;
/* Read the values of the system columns */
*trx_id = mach_dulint_read_compressed(ptr);
ptr += mach_dulint_get_compressed_size(*trx_id);
*roll_ptr = mach_dulint_read_compressed(ptr);
ptr += mach_dulint_get_compressed_size(*roll_ptr);
return(ptr);
}
/*************************************************************//**
Pretty prints a dfield value according to its data type. Also the hex string
is printed if a string contains non-printable characters. */
UNIV_INTERN
void
dfield_print_also_hex(
/*==================*/
const dfield_t* dfield) /*!< in: dfield */
{
const byte* data;
ulint len;
ulint prtype;
ulint i;
ibool print_also_hex;
len = dfield_get_len(dfield);
data = dfield_get_data(dfield);
if (dfield_is_null(dfield)) {
fputs("NULL", stderr);
return;
}
prtype = dtype_get_prtype(dfield_get_type(dfield));
switch (dtype_get_mtype(dfield_get_type(dfield))) {
dulint id;
case DATA_INT:
switch (len) {
ulint val;
case 1:
val = mach_read_from_1(data);
if (!(prtype & DATA_UNSIGNED)) {
val &= ~0x80;
fprintf(stderr, "%ld", (long) val);
} else {
fprintf(stderr, "%lu", (ulong) val);
}
break;
case 2:
val = mach_read_from_2(data);
if (!(prtype & DATA_UNSIGNED)) {
val &= ~0x8000;
fprintf(stderr, "%ld", (long) val);
} else {
fprintf(stderr, "%lu", (ulong) val);
}
break;
case 3:
val = mach_read_from_3(data);
if (!(prtype & DATA_UNSIGNED)) {
val &= ~0x800000;
fprintf(stderr, "%ld", (long) val);
} else {
fprintf(stderr, "%lu", (ulong) val);
}
break;
case 4:
val = mach_read_from_4(data);
if (!(prtype & DATA_UNSIGNED)) {
val &= ~0x80000000;
fprintf(stderr, "%ld", (long) val);
} else {
fprintf(stderr, "%lu", (ulong) val);
}
break;
case 6:
id = mach_read_from_6(data);
fprintf(stderr, "{%lu %lu}",
ut_dulint_get_high(id),
ut_dulint_get_low(id));
break;
case 7:
id = mach_read_from_7(data);
fprintf(stderr, "{%lu %lu}",
ut_dulint_get_high(id),
ut_dulint_get_low(id));
break;
case 8:
id = mach_read_from_8(data);
fprintf(stderr, "{%lu %lu}",
ut_dulint_get_high(id),
ut_dulint_get_low(id));
break;
default:
goto print_hex;
}
break;
case DATA_SYS:
switch (prtype & DATA_SYS_PRTYPE_MASK) {
case DATA_TRX_ID:
id = mach_read_from_6(data);
fprintf(stderr, "trx_id " TRX_ID_FMT,
TRX_ID_PREP_PRINTF(id));
break;
case DATA_ROLL_PTR:
id = mach_read_from_7(data);
fprintf(stderr, "roll_ptr {%lu %lu}",
ut_dulint_get_high(id), ut_dulint_get_low(id));
break;
case DATA_ROW_ID:
id = mach_read_from_6(data);
fprintf(stderr, "row_id {%lu %lu}",
ut_dulint_get_high(id), ut_dulint_get_low(id));
break;
default:
id = mach_dulint_read_compressed(data);
fprintf(stderr, "mix_id {%lu %lu}",
ut_dulint_get_high(id), ut_dulint_get_low(id));
}
break;
case DATA_CHAR:
case DATA_VARCHAR:
print_also_hex = FALSE;
for (i = 0; i < len; i++) {
int c = *data++;
if (!isprint(c)) {
print_also_hex = TRUE;
fprintf(stderr, "\\x%02x", (unsigned char) c);
} else {
putc(c, stderr);
}
}
if (dfield_is_ext(dfield)) {
fputs("(external)", stderr);
}
if (!print_also_hex) {
break;
}
data = dfield_get_data(dfield);
/* fall through */
case DATA_BINARY:
default:
print_hex:
fputs(" Hex: ",stderr);
for (i = 0; i < len; i++) {
fprintf(stderr, "%02lx", (ulint) *data++);
}
if (dfield_is_ext(dfield)) {
fputs("(external)", stderr);
}
}
}
