703 lines
24 KiB
C
703 lines
24 KiB
C
/*
|
|
* Copyright (c) 2016 MariaDB Corporation Ab
|
|
*
|
|
* Use of this software is governed by the Business Source License included
|
|
* in the LICENSE.TXT file and at www.mariadb.com/bsl11.
|
|
*
|
|
* Change Date: 2019-07-01
|
|
*
|
|
* On the date above, in accordance with the Business Source License, use
|
|
* of this software will be governed by version 2 or later of the General
|
|
* Public License.
|
|
*/
|
|
|
|
#include "avrorouter.h"
|
|
|
|
#include <maxscale/mysql_utils.h>
|
|
#include <jansson.h>
|
|
#include <maxscale/alloc.h>
|
|
#include <strings.h>
|
|
#include <signal.h>
|
|
|
|
#define WRITE_EVENT 0
|
|
#define UPDATE_EVENT 1
|
|
#define UPDATE_EVENT_AFTER 2
|
|
#define DELETE_EVENT 3
|
|
|
|
static bool warn_decimal = false; /**< Remove when support for DECIMAL is added */
|
|
static bool warn_bit = false; /**< Remove when support for BIT is added */
|
|
static bool warn_large_enumset = false; /**< Remove when support for ENUM/SET values
|
|
* larger than 255 is added */
|
|
|
|
uint8_t* process_row_event_data(TABLE_MAP *map, TABLE_CREATE *create,
|
|
avro_value_t *record, uint8_t *ptr,
|
|
uint8_t *columns_present, uint8_t *end);
|
|
void notify_all_clients(AVRO_INSTANCE *router);
|
|
void add_used_table(AVRO_INSTANCE* router, const char* table);
|
|
|
|
/**
|
|
* @brief Get row event name
|
|
* @param event Event type
|
|
* @return String representation of the event
|
|
*/
|
|
static int get_event_type(uint8_t event)
|
|
{
|
|
switch (event)
|
|
{
|
|
|
|
case WRITE_ROWS_EVENTv0:
|
|
case WRITE_ROWS_EVENTv1:
|
|
case WRITE_ROWS_EVENTv2:
|
|
return WRITE_EVENT;
|
|
|
|
case UPDATE_ROWS_EVENTv0:
|
|
case UPDATE_ROWS_EVENTv1:
|
|
case UPDATE_ROWS_EVENTv2:
|
|
return UPDATE_EVENT;
|
|
|
|
case DELETE_ROWS_EVENTv0:
|
|
case DELETE_ROWS_EVENTv1:
|
|
case DELETE_ROWS_EVENTv2:
|
|
return DELETE_EVENT;
|
|
|
|
default:
|
|
MXS_ERROR("Unexpected event type: %d (%0x)", event, event);
|
|
return -1;
|
|
}
|
|
}
|
|
|
|
/**
|
|
* @brief Handle a table map event
|
|
*
|
|
* This converts a table map events into table meta data that will be used when
|
|
* converting binlogs to Avro format.
|
|
* @param router Avro router instance
|
|
* @param hdr Replication header
|
|
* @param ptr Pointer to event payload
|
|
*/
|
|
bool handle_table_map_event(AVRO_INSTANCE *router, REP_HEADER *hdr, uint8_t *ptr)
|
|
{
|
|
bool rval = false;
|
|
uint64_t id;
|
|
char table_ident[MYSQL_TABLE_MAXLEN + MYSQL_DATABASE_MAXLEN + 2];
|
|
int ev_len = router->event_type_hdr_lens[hdr->event_type];
|
|
|
|
read_table_info(ptr, ev_len, &id, table_ident, sizeof(table_ident));
|
|
TABLE_CREATE* create = hashtable_fetch(router->created_tables, table_ident);
|
|
|
|
if (create)
|
|
{
|
|
ss_dassert(create->columns > 0);
|
|
TABLE_MAP *old = hashtable_fetch(router->table_maps, table_ident);
|
|
TABLE_MAP *map = table_map_alloc(ptr, ev_len, create);
|
|
MXS_ABORT_IF_NULL(map); // Fatal error at this point
|
|
|
|
if (old && old->id == map->id && old->version == map->version &&
|
|
strcmp(old->table, map->table) == 0 &&
|
|
strcmp(old->database, map->database) == 0)
|
|
{
|
|
table_map_free(map);
|
|
return true;
|
|
}
|
|
|
|
char* json_schema = json_new_schema_from_table(map);
|
|
|
|
if (json_schema)
|
|
{
|
|
char filepath[PATH_MAX + 1];
|
|
snprintf(filepath, sizeof(filepath), "%s/%s.%06d.avro",
|
|
router->avrodir, table_ident, map->version);
|
|
|
|
/** Close the file and open a new one */
|
|
hashtable_delete(router->open_tables, table_ident);
|
|
AVRO_TABLE *avro_table = avro_table_alloc(filepath, json_schema, router->block_size);
|
|
|
|
if (avro_table)
|
|
{
|
|
bool notify = old != NULL;
|
|
|
|
if (old)
|
|
{
|
|
router->active_maps[old->id % MAX_MAPPED_TABLES] = NULL;
|
|
}
|
|
hashtable_delete(router->table_maps, table_ident);
|
|
hashtable_add(router->table_maps, (void*)table_ident, map);
|
|
hashtable_add(router->open_tables, table_ident, avro_table);
|
|
save_avro_schema(router->avrodir, json_schema, map);
|
|
router->active_maps[map->id % MAX_MAPPED_TABLES] = map;
|
|
ss_dassert(router->active_maps[id % MAX_MAPPED_TABLES] == map);
|
|
MXS_DEBUG("Table %s mapped to %lu", table_ident, map->id);
|
|
rval = true;
|
|
|
|
if (notify)
|
|
{
|
|
notify_all_clients(router);
|
|
}
|
|
}
|
|
else
|
|
{
|
|
MXS_ERROR("Failed to open new Avro file for writing.");
|
|
}
|
|
MXS_FREE(json_schema);
|
|
}
|
|
else
|
|
{
|
|
MXS_ERROR("Failed to create JSON schema.");
|
|
}
|
|
}
|
|
else
|
|
{
|
|
MXS_WARNING("Table map event for table '%s' read before the DDL statement "
|
|
"for that table was read. Data will not be processed for this "
|
|
"table until a DDL statement for it is read.", table_ident);
|
|
}
|
|
|
|
if (rval)
|
|
{
|
|
MXS_INFO("Table Map for '%s' at %lu", table_ident, router->current_pos);
|
|
}
|
|
|
|
return rval;
|
|
}
|
|
|
|
/**
|
|
* @brief Set common field values and update the GTID subsequence counter
|
|
*
|
|
* This sets the domain, server ID, sequence and event position fields of
|
|
* the GTID. It also sets the event timestamp and event type fields.
|
|
*
|
|
* @param router Avro router instance
|
|
* @param hdr Replication header
|
|
* @param event_type Event type
|
|
* @param record Record to prepare
|
|
*/
|
|
static void prepare_record(AVRO_INSTANCE *router, REP_HEADER *hdr,
|
|
int event_type, avro_value_t *record)
|
|
{
|
|
avro_value_t field;
|
|
avro_value_get_by_name(record, avro_domain, &field, NULL);
|
|
avro_value_set_int(&field, router->gtid.domain);
|
|
|
|
avro_value_get_by_name(record, avro_server_id, &field, NULL);
|
|
avro_value_set_int(&field, router->gtid.server_id);
|
|
|
|
avro_value_get_by_name(record, avro_sequence, &field, NULL);
|
|
avro_value_set_int(&field, router->gtid.seq);
|
|
|
|
router->gtid.event_num++;
|
|
avro_value_get_by_name(record, avro_event_number, &field, NULL);
|
|
avro_value_set_int(&field, router->gtid.event_num);
|
|
|
|
avro_value_get_by_name(record, avro_timestamp, &field, NULL);
|
|
avro_value_set_int(&field, hdr->timestamp);
|
|
|
|
avro_value_get_by_name(record, avro_event_type, &field, NULL);
|
|
avro_value_set_enum(&field, event_type);
|
|
}
|
|
|
|
/**
|
|
* @brief Handle a single RBR row event
|
|
*
|
|
* These events contain the changes in the data. This function assumes that full
|
|
* row image is sent in every row event.
|
|
*
|
|
* @param router Avro router instance
|
|
* @param hdr Replication header
|
|
* @param ptr Pointer to the start of the event
|
|
* @return True on succcess, false on error
|
|
*/
|
|
bool handle_row_event(AVRO_INSTANCE *router, REP_HEADER *hdr, uint8_t *ptr)
|
|
{
|
|
bool rval = false;
|
|
uint8_t *start = ptr;
|
|
uint8_t table_id_size = router->event_type_hdr_lens[hdr->event_type] == 6 ? 4 : 6;
|
|
uint64_t table_id = 0;
|
|
|
|
/** The first value is the ID where the table was mapped. This should be
|
|
* the same as the ID in the table map even which was processed before this
|
|
* row event. */
|
|
memcpy(&table_id, ptr, table_id_size);
|
|
ptr += table_id_size;
|
|
|
|
/** Replication flags, currently ignored for the most part. */
|
|
uint16_t flags = 0;
|
|
memcpy(&flags, ptr, 2);
|
|
ptr += 2;
|
|
|
|
if (table_id == TABLE_DUMMY_ID && flags & ROW_EVENT_END_STATEMENT)
|
|
{
|
|
/** This is an dummy event which should release all table maps. Right
|
|
* now we just return without processing the rows. */
|
|
return true;
|
|
}
|
|
|
|
/** Newer replication events have extra data stored in the header. MariaDB
|
|
* 10.1 does not use these and instead use the v1 events */
|
|
if (hdr->event_type > DELETE_ROWS_EVENTv1)
|
|
{
|
|
/** Version 2 row event, skip extra data */
|
|
uint16_t extra_len = 0;
|
|
memcpy(&extra_len, ptr, 2);
|
|
ptr += 2 + extra_len;
|
|
}
|
|
|
|
/** Number of columns in the table */
|
|
uint64_t ncolumns = mxs_leint_consume(&ptr);
|
|
|
|
/** If full row image is used, all columns are present. Currently only full
|
|
* row image is supported and thus the bitfield should be all ones. In
|
|
* the future partial row images could be used if the bitfield containing
|
|
* the columns that are present in this event is used. */
|
|
const int coldata_size = (ncolumns + 7) / 8;
|
|
uint8_t col_present[coldata_size];
|
|
memcpy(&col_present, ptr, coldata_size);
|
|
ptr += coldata_size;
|
|
|
|
/** Update events have the before and after images of the row. This can be
|
|
* used to calculate a "delta" of sorts if necessary. Currently we store
|
|
* both the before and the after images. */
|
|
uint8_t col_update[coldata_size];
|
|
if (hdr->event_type == UPDATE_ROWS_EVENTv1 ||
|
|
hdr->event_type == UPDATE_ROWS_EVENTv2)
|
|
{
|
|
memcpy(&col_update, ptr, coldata_size);
|
|
ptr += coldata_size;
|
|
}
|
|
|
|
/** There should always be a table map event prior to a row event.
|
|
* TODO: Make the active_maps dynamic */
|
|
TABLE_MAP *map = router->active_maps[table_id % MAX_MAPPED_TABLES];
|
|
|
|
if (map)
|
|
{
|
|
char table_ident[MYSQL_TABLE_MAXLEN + MYSQL_DATABASE_MAXLEN + 2];
|
|
snprintf(table_ident, sizeof(table_ident), "%s.%s", map->database, map->table);
|
|
AVRO_TABLE* table = hashtable_fetch(router->open_tables, table_ident);
|
|
TABLE_CREATE* create = map->table_create;
|
|
|
|
if (table && create && ncolumns == map->columns)
|
|
{
|
|
avro_value_t record;
|
|
avro_generic_value_new(table->avro_writer_iface, &record);
|
|
|
|
/** Each event has one or more rows in it. The number of rows is not known
|
|
* beforehand so we must continue processing them until we reach the end
|
|
* of the event. */
|
|
int rows = 0;
|
|
MXS_INFO("Row Event for '%s' at %lu", table_ident, router->current_pos);
|
|
|
|
while (ptr - start < hdr->event_size - BINLOG_EVENT_HDR_LEN)
|
|
{
|
|
static uint64_t total_row_count = 1;
|
|
MXS_INFO("Row %lu", total_row_count++);
|
|
|
|
/** Add the current GTID and timestamp */
|
|
uint8_t *end = ptr + hdr->event_size - BINLOG_EVENT_HDR_LEN;
|
|
int event_type = get_event_type(hdr->event_type);
|
|
prepare_record(router, hdr, event_type, &record);
|
|
ptr = process_row_event_data(map, create, &record, ptr, col_present, end);
|
|
if (avro_file_writer_append_value(table->avro_file, &record))
|
|
{
|
|
MXS_ERROR("Failed to write value at position %ld: %s",
|
|
router->current_pos, avro_strerror());
|
|
}
|
|
|
|
/** Update rows events have the before and after images of the
|
|
* affected rows so we'll process them as another record with
|
|
* a different type */
|
|
if (event_type == UPDATE_EVENT)
|
|
{
|
|
prepare_record(router, hdr, UPDATE_EVENT_AFTER, &record);
|
|
ptr = process_row_event_data(map, create, &record, ptr, col_present, end);
|
|
if (avro_file_writer_append_value(table->avro_file, &record))
|
|
{
|
|
MXS_ERROR("Failed to write value at position %ld: %s",
|
|
router->current_pos, avro_strerror());
|
|
}
|
|
}
|
|
|
|
rows++;
|
|
}
|
|
|
|
add_used_table(router, table_ident);
|
|
avro_value_decref(&record);
|
|
rval = true;
|
|
}
|
|
else if (table == NULL)
|
|
{
|
|
MXS_ERROR("Avro file handle was not found for table %s.%s. See earlier"
|
|
" errors for more details.", map->database, map->table);
|
|
}
|
|
else if (create == NULL)
|
|
{
|
|
MXS_ERROR("Create table statement for %s.%s was not found from the "
|
|
"binary logs or the stored schema was not correct.",
|
|
map->database, map->table);
|
|
}
|
|
else
|
|
{
|
|
MXS_ERROR("Row event and table map event have different column "
|
|
"counts for table %s.%s, only full row image is currently "
|
|
"supported.", map->database, map->table);
|
|
}
|
|
}
|
|
else
|
|
{
|
|
MXS_ERROR("Row event for unknown table mapped to ID %lu. Data will not "
|
|
"be processed.", table_id);
|
|
}
|
|
|
|
return rval;
|
|
}
|
|
|
|
/**
|
|
* @brief Unpack numeric types
|
|
*
|
|
* Convert the stored value into an Avro value and pack it in the record.
|
|
*
|
|
* @param field Avro value in a record
|
|
* @param type Type of the field
|
|
* @param metadata Field metadata
|
|
* @param value Pointer to the start of the in-memory representation of the data
|
|
*/
|
|
void set_numeric_field_value(avro_value_t *field, uint8_t type, uint8_t *metadata, uint8_t *value)
|
|
{
|
|
switch (type)
|
|
{
|
|
case TABLE_COL_TYPE_TINY:
|
|
{
|
|
char c = *value;
|
|
avro_value_set_int(field, c);
|
|
break;
|
|
}
|
|
|
|
case TABLE_COL_TYPE_SHORT:
|
|
{
|
|
short s = gw_mysql_get_byte2(value);
|
|
avro_value_set_int(field, s);
|
|
break;
|
|
}
|
|
|
|
case TABLE_COL_TYPE_INT24:
|
|
{
|
|
int x = gw_mysql_get_byte3(value);
|
|
|
|
if (x & 0x800000)
|
|
{
|
|
x = -((0xffffff & (~x)) + 1);
|
|
}
|
|
|
|
avro_value_set_int(field, x);
|
|
break;
|
|
}
|
|
|
|
case TABLE_COL_TYPE_LONG:
|
|
{
|
|
int x = gw_mysql_get_byte4(value);
|
|
avro_value_set_int(field, x);
|
|
break;
|
|
}
|
|
|
|
case TABLE_COL_TYPE_LONGLONG:
|
|
{
|
|
long l = gw_mysql_get_byte8(value);
|
|
avro_value_set_long(field, l);
|
|
break;
|
|
}
|
|
|
|
case TABLE_COL_TYPE_FLOAT:
|
|
{
|
|
float f = 0;
|
|
memcpy(&f, value, 4);
|
|
avro_value_set_float(field, f);
|
|
break;
|
|
}
|
|
|
|
case TABLE_COL_TYPE_DOUBLE:
|
|
{
|
|
double d = 0;
|
|
memcpy(&d, value, 8);
|
|
avro_value_set_double(field, d);
|
|
break;
|
|
}
|
|
|
|
default:
|
|
break;
|
|
}
|
|
}
|
|
|
|
/**
|
|
* @brief Check if a bit is set
|
|
*
|
|
* @param ptr Pointer to start of bitfield
|
|
* @param columns Number of columns (bits)
|
|
* @param current_column Zero indexed column number
|
|
* @return True if the bit is set
|
|
*/
|
|
static bool bit_is_set(uint8_t *ptr, int columns, int current_column)
|
|
{
|
|
if (current_column >= 8)
|
|
{
|
|
ptr += current_column / 8;
|
|
current_column = current_column % 8;
|
|
}
|
|
|
|
return ((*ptr) & (1 << current_column));
|
|
}
|
|
|
|
/**
|
|
* @brief Get the length of the metadata for a particular field
|
|
*
|
|
* @param type Type of the field
|
|
* @return Length of the metadata for this field
|
|
*/
|
|
int get_metadata_len(uint8_t type)
|
|
{
|
|
switch (type)
|
|
{
|
|
case TABLE_COL_TYPE_STRING:
|
|
case TABLE_COL_TYPE_VAR_STRING:
|
|
case TABLE_COL_TYPE_VARCHAR:
|
|
case TABLE_COL_TYPE_DECIMAL:
|
|
case TABLE_COL_TYPE_NEWDECIMAL:
|
|
case TABLE_COL_TYPE_ENUM:
|
|
case TABLE_COL_TYPE_SET:
|
|
case TABLE_COL_TYPE_BIT:
|
|
return 2;
|
|
|
|
case TABLE_COL_TYPE_BLOB:
|
|
case TABLE_COL_TYPE_FLOAT:
|
|
case TABLE_COL_TYPE_DOUBLE:
|
|
case TABLE_COL_TYPE_DATETIME2:
|
|
case TABLE_COL_TYPE_TIMESTAMP2:
|
|
case TABLE_COL_TYPE_TIME2:
|
|
return 1;
|
|
|
|
default:
|
|
return 0;
|
|
}
|
|
}
|
|
|
|
// Make sure that both `i` and `trace` are defined before using this macro
|
|
#define check_overflow(t) do \
|
|
{ \
|
|
if (!(t)) \
|
|
{ \
|
|
for (long x = 0; x < i;x++) \
|
|
{ \
|
|
MXS_ALERT("%s", trace[x]); \
|
|
} \
|
|
raise(SIGABRT); \
|
|
} \
|
|
}while(false)
|
|
|
|
/**
|
|
* @brief Extract the values from a single row in a row event
|
|
*
|
|
* @param map Table map event associated with this row
|
|
* @param create Table creation associated with this row
|
|
* @param record Avro record used for storing this row
|
|
* @param ptr Pointer to the start of the row data, should be after the row event header
|
|
* @param columns_present The bitfield holding the columns that are present for
|
|
* this row event. Currently this should be a bitfield which has all bits set.
|
|
* @return Pointer to the first byte after the current row event
|
|
*/
|
|
uint8_t* process_row_event_data(TABLE_MAP *map, TABLE_CREATE *create, avro_value_t *record,
|
|
uint8_t *ptr, uint8_t *columns_present, uint8_t *end)
|
|
{
|
|
int npresent = 0;
|
|
avro_value_t field;
|
|
long ncolumns = MXS_MIN(map->columns, create->columns);
|
|
uint8_t *metadata = map->column_metadata;
|
|
size_t metadata_offset = 0;
|
|
|
|
/** BIT type values use the extra bits in the row event header */
|
|
int extra_bits = (((ncolumns + 7) / 8) * 8) - ncolumns;
|
|
ss_dassert(ptr < end);
|
|
|
|
/** Store the null value bitmap */
|
|
uint8_t *null_bitmap = ptr;
|
|
ptr += (ncolumns + 7) / 8;
|
|
ss_dassert(ptr < end);
|
|
|
|
char trace[ncolumns][768];
|
|
memset(trace, 0, sizeof(trace));
|
|
|
|
for (long i = 0; i < ncolumns && npresent < ncolumns; i++)
|
|
{
|
|
ss_debug(int rc = )avro_value_get_by_name(record, create->column_names[i], &field, NULL);
|
|
ss_dassert(rc == 0);
|
|
|
|
if (bit_is_set(columns_present, ncolumns, i))
|
|
{
|
|
npresent++;
|
|
if (bit_is_set(null_bitmap, ncolumns, i))
|
|
{
|
|
sprintf(trace[i], "[%ld] NULL", i);
|
|
if (column_is_blob(map->column_types[i]))
|
|
{
|
|
uint8_t nullvalue = 0;
|
|
avro_value_set_bytes(&field, &nullvalue, 1);
|
|
}
|
|
else
|
|
{
|
|
avro_value_set_null(&field);
|
|
}
|
|
}
|
|
else if (column_is_fixed_string(map->column_types[i]))
|
|
{
|
|
/** ENUM and SET are stored as STRING types with the type stored
|
|
* in the metadata. */
|
|
if (fixed_string_is_enum(metadata[metadata_offset]))
|
|
{
|
|
uint8_t val[metadata[metadata_offset + 1]];
|
|
uint64_t bytes = unpack_enum(ptr, &metadata[metadata_offset], val);
|
|
char strval[bytes * 2 + 1];
|
|
gw_bin2hex(strval, val, bytes);
|
|
avro_value_set_string(&field, strval);
|
|
sprintf(trace[i], "[%ld] ENUM: %lu bytes", i, bytes);
|
|
ptr += bytes;
|
|
check_overflow(ptr < end);
|
|
}
|
|
else
|
|
{
|
|
/**
|
|
* The first byte in the metadata stores the real type of
|
|
* the string (ENUM and SET types are also stored as fixed
|
|
* length strings).
|
|
*
|
|
* The first two bits of the second byte contain the XOR'ed
|
|
* field length but as that information is not relevant for
|
|
* us, we just use this information to know whether to read
|
|
* one or two bytes for string length.
|
|
*/
|
|
|
|
uint16_t meta = metadata[metadata_offset + 1] + (metadata[metadata_offset] << 8);
|
|
int bytes = 0;
|
|
uint16_t extra_length = (((meta >> 4) & 0x300) ^ 0x300);
|
|
uint16_t field_length = (meta & 0xff) + extra_length;
|
|
|
|
if (field_length > 255)
|
|
{
|
|
bytes = ptr[0] + (ptr[1] << 8);
|
|
ptr += 2;
|
|
}
|
|
else
|
|
{
|
|
bytes = *ptr++;
|
|
}
|
|
|
|
sprintf(trace[i], "[%ld] CHAR: field: %d bytes, data: %d bytes", i, field_length, bytes);
|
|
char str[bytes + 1];
|
|
memcpy(str, ptr, bytes);
|
|
str[bytes] = '\0';
|
|
avro_value_set_string(&field, str);
|
|
ptr += bytes;
|
|
check_overflow(ptr < end);
|
|
}
|
|
}
|
|
else if (column_is_bit(map->column_types[i]))
|
|
{
|
|
uint64_t value = 0;
|
|
uint8_t len = metadata[metadata_offset + 1];
|
|
uint8_t bit_len = metadata[metadata_offset] > 0 ? 1 : 0;
|
|
size_t bytes = len + bit_len;
|
|
|
|
// TODO: extract the bytes
|
|
if (!warn_bit)
|
|
{
|
|
warn_bit = true;
|
|
MXS_WARNING("BIT is not currently supported, values are stored as 0.");
|
|
}
|
|
avro_value_set_int(&field, value);
|
|
sprintf(trace[i], "[%ld] BIT", i);
|
|
ptr += bytes;
|
|
check_overflow(ptr < end);
|
|
}
|
|
else if (column_is_decimal(map->column_types[i]))
|
|
{
|
|
double f_value = 0.0;
|
|
ptr += unpack_decimal_field(ptr, metadata + metadata_offset, &f_value);
|
|
avro_value_set_double(&field, f_value);
|
|
sprintf(trace[i], "[%ld] DECIMAL", i);
|
|
check_overflow(ptr < end);
|
|
}
|
|
else if (column_is_variable_string(map->column_types[i]))
|
|
{
|
|
size_t sz;
|
|
int bytes = metadata[metadata_offset] | metadata[metadata_offset + 1] << 8;
|
|
if (bytes > 255)
|
|
{
|
|
sz = gw_mysql_get_byte2(ptr);
|
|
ptr += 2;
|
|
}
|
|
else
|
|
{
|
|
sz = *ptr;
|
|
ptr++;
|
|
}
|
|
|
|
sprintf(trace[i], "[%ld] VARCHAR: field: %d bytes, data: %lu bytes", i, bytes, sz);
|
|
char buf[sz + 1];
|
|
memcpy(buf, ptr, sz);
|
|
buf[sz] = '\0';
|
|
ptr += sz;
|
|
avro_value_set_string(&field, buf);
|
|
check_overflow(ptr < end);
|
|
}
|
|
else if (column_is_blob(map->column_types[i]))
|
|
{
|
|
uint8_t bytes = metadata[metadata_offset];
|
|
uint64_t len = 0;
|
|
memcpy(&len, ptr, bytes);
|
|
ptr += bytes;
|
|
sprintf(trace[i], "[%ld] BLOB: field: %d bytes, data: %lu bytes", i, bytes, len);
|
|
if (len)
|
|
{
|
|
avro_value_set_bytes(&field, ptr, len);
|
|
ptr += len;
|
|
}
|
|
else
|
|
{
|
|
uint8_t nullvalue = 0;
|
|
avro_value_set_bytes(&field, &nullvalue, 1);
|
|
}
|
|
check_overflow(ptr < end);
|
|
}
|
|
else if (column_is_temporal(map->column_types[i]))
|
|
{
|
|
char buf[80];
|
|
struct tm tm;
|
|
ptr += unpack_temporal_value(map->column_types[i], ptr,
|
|
&metadata[metadata_offset],
|
|
create->column_lengths[i], &tm);
|
|
format_temporal_value(buf, sizeof(buf), map->column_types[i], &tm);
|
|
avro_value_set_string(&field, buf);
|
|
sprintf(trace[i], "[%ld] %s: %s", i, column_type_to_string(map->column_types[i]), buf);
|
|
check_overflow(ptr < end);
|
|
}
|
|
/** All numeric types (INT, LONG, FLOAT etc.) */
|
|
else
|
|
{
|
|
uint8_t lval[16];
|
|
memset(lval, 0, sizeof(lval));
|
|
ptr += unpack_numeric_field(ptr, map->column_types[i],
|
|
&metadata[metadata_offset], lval);
|
|
set_numeric_field_value(&field, map->column_types[i], &metadata[metadata_offset], lval);
|
|
sprintf(trace[i], "[%ld] %s", i, column_type_to_string(map->column_types[i]));
|
|
check_overflow(ptr < end);
|
|
}
|
|
ss_dassert(metadata_offset <= map->column_metadata_size);
|
|
metadata_offset += get_metadata_len(map->column_types[i]);
|
|
}
|
|
else
|
|
{
|
|
sprintf(trace[i], "[%ld] %s: Not present", i, column_type_to_string(map->column_types[i]));
|
|
}
|
|
|
|
MXS_INFO("%s", trace[i]);
|
|
}
|
|
|
|
return ptr;
|
|
}
|