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MySQL 9.1.0
Source Code Documentation
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#include <log_event.h>
Classes | |
class | Applier_context |
Public Member Functions | |
Transaction_payload_log_event (THD *thd_arg, const char *payload, uint64_t payload_size, uint16_t compression_type, uint64_t uncompressed_size) | |
Transaction_payload_log_event (THD *thd_arg, const char *payload, uint64_t payload_size) | |
Transaction_payload_log_event (THD *thd_arg) | |
Transaction_payload_log_event (const char *buf, const mysql::binlog::event::Format_description_event *fde) | |
~Transaction_payload_log_event () override=default | |
void | claim_memory_ownership (bool claim) override |
Allow thread to CLAIM or DISCLAIM the ownership of this object depends on the parameter value passed. More... | |
size_t | get_event_length () |
size_t | get_data_size () override |
int | do_apply_event (Relay_log_info const *rli) override |
Primitive to apply an event to the database. More... | |
bool | apply_payload_event (Relay_log_info const *rli, const uchar *event_buf) |
enum_skip_reason | do_shall_skip (Relay_log_info *rli) override |
Decide if this event shall be skipped or not and the reason for skipping it. More... | |
int | pack_info (Protocol *protocol) override |
Stores a string representation of this event in the Protocol. More... | |
bool | ends_group () const override |
bool | write (Basic_ostream *ostream) override |
uint8 | get_mts_dbs (Mts_db_names *arg, Rpl_filter *rpl_filter) override |
The method fills in pointers to event's database name c-strings to a supplied array. More... | |
void | set_mts_dbs (Mts_db_names &arg) |
uint8 | mts_number_dbs () override |
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Transaction_payload_event (const char *payload, uint64_t payload_size, uint16_t compression_type, uint64_t uncompressed_size) | |
Construct an object from the given fields. More... | |
Transaction_payload_event (const char *buf, const Format_description_event *fde) | |
Decode the event from a buffer. More... | |
~Transaction_payload_event () override | |
void | set_compression_type (mysql::binlog::event::compression::type type) |
Set the compression type used for the enclosed payload. More... | |
mysql::binlog::event::compression::type | get_compression_type () const |
void | set_payload_size (uint64_t size) |
Set the (compressed) size of the payload in this event. More... | |
uint64_t | get_payload_size () const |
void | set_uncompressed_size (uint64_t size) |
Set the uncompressed size of the payload. More... | |
uint64_t | get_uncompressed_size () const |
Return the alleged uncompressed size according to the field stored in the event. More... | |
void | set_payload (const char *data) |
Set the (possibly compressed) payload for the event. More... | |
const char * | get_payload () const |
void | set_payload (Buffer_sequence_view_t *buffer_sequence_view) |
Set the (possibly compressed) payload for the event. More... | |
std::string | to_string () const |
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virtual | ~Binary_log_event ()=0 |
Binary_log_event (const Binary_log_event &)=default | |
Binary_log_event (Binary_log_event &&)=default | |
Binary_log_event & | operator= (const Binary_log_event &)=default |
Binary_log_event & | operator= (Binary_log_event &&)=default |
enum Log_event_type | get_event_type () const |
Helper method. More... | |
const Log_event_header * | header () const |
Return a const pointer to the header of the log event. More... | |
Log_event_header * | header () |
Return a non-const pointer to the header of the log event. More... | |
const Log_event_footer * | footer () const |
Return a const pointer to the footer of the log event. More... | |
Log_event_footer * | footer () |
Return a non-const pointer to the footer of the log event. More... | |
Event_reader & | reader () |
Returns a reference to the event Event_reader object. More... | |
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Log_event (mysql::binlog::event::Log_event_header *header, mysql::binlog::event::Log_event_footer *footer, enum_event_cache_type cache_type_arg, enum_event_logging_type logging_type_arg) | |
This minimal constructor is for when you are not even sure that there is a valid THD. More... | |
Log_event (THD *thd_arg, uint16 flags_arg, enum_event_cache_type cache_type_arg, enum_event_logging_type logging_type_arg, mysql::binlog::event::Log_event_header *header, mysql::binlog::event::Log_event_footer *footer) | |
int | net_send (Protocol *protocol, const char *log_name, my_off_t pos) |
Only called by SHOW BINLOG EVENTS. More... | |
virtual const char * | get_db () |
void * | operator new (size_t size) |
bool | wrapper_my_b_safe_write (Basic_ostream *ostream, const uchar *buf, size_t data_length) |
Write the given buffer to the given output stream, updating the checksum if checksums are enabled. More... | |
time_t | get_time () |
Prints a "session_var=value" string. More... | |
virtual bool | write_data_header (Basic_ostream *) |
virtual bool | write_data_body (Basic_ostream *) |
virtual mysql::binlog::event::Log_event_type | get_type_code () const |
virtual bool | is_sbr_logging_format () const |
Return true if the event has to be logged using SBR for DMLs. More... | |
virtual bool | is_rbr_logging_format () const |
Return true if the event has to be logged using RBR for DMLs. More... | |
bool | is_valid () |
void | set_artificial_event () |
void | set_relay_log_event () |
bool | is_artificial_event () const |
bool | is_relay_log_event () const |
bool | is_ignorable_event () const |
bool | is_no_filter_event () const |
bool | is_using_trans_cache () const |
bool | is_using_stmt_cache () const |
bool | is_using_immediate_logging () const |
Log_event (mysql::binlog::event::Log_event_header *header, mysql::binlog::event::Log_event_footer *footer) | |
virtual | ~Log_event () |
void | register_temp_buf (char *buf, bool free_in_destructor=true) |
void | free_temp_buf () |
const char * | get_type_str () const |
Returns the human readable name of this event's type. More... | |
bool | is_mts_sequential_exec () const |
Is called from get_mts_execution_mode() to. More... | |
bool | contains_partition_info (bool) |
bool | is_mts_group_isolated () |
virtual bool | starts_group () const |
Events of a certain type can start or end a group of events treated transactionally wrt binlog. More... | |
int | apply_event (Relay_log_info *rli) |
Apply the event to the database. More... | |
int | apply_gtid_event (Relay_log_info *rli) |
Apply the GTID event in curr_group_data to the database. More... | |
int | update_pos (Relay_log_info *rli) |
Update the relay log position. More... | |
enum_skip_reason | shall_skip (Relay_log_info *rli) |
Decide if the event shall be skipped, and the reason for skipping it. More... | |
virtual int | do_apply_event_worker (Slave_worker *w) |
Private Attributes | |
Applier_context | m_applier_ctx |
Additional Inherited Members | |
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using | Buffer_sequence_view_t = mysql::containers::buffers::Buffer_sequence_view<> |
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enum | enum_post_header_length { QUERY_HEADER_MINIMAL_LEN = (4 + 4 + 1 + 2) , QUERY_HEADER_LEN = (QUERY_HEADER_MINIMAL_LEN + 2) , STOP_HEADER_LEN = 0 , START_V3_HEADER_LEN = (2 + ST_SERVER_VER_LEN + 4) , ROTATE_HEADER_LEN = 8 , INTVAR_HEADER_LEN = 0 , APPEND_BLOCK_HEADER_LEN = 4 , DELETE_FILE_HEADER_LEN = 4 , RAND_HEADER_LEN = 0 , USER_VAR_HEADER_LEN = 0 , FORMAT_DESCRIPTION_HEADER_LEN = (START_V3_HEADER_LEN + 1 + LOG_EVENT_TYPES) , XID_HEADER_LEN = 0 , BEGIN_LOAD_QUERY_HEADER_LEN = APPEND_BLOCK_HEADER_LEN , ROWS_HEADER_LEN_V1 = 8 , TABLE_MAP_HEADER_LEN = 8 , EXECUTE_LOAD_QUERY_EXTRA_HEADER_LEN = (4 + 4 + 4 + 1) , EXECUTE_LOAD_QUERY_HEADER_LEN , INCIDENT_HEADER_LEN = 2 , HEARTBEAT_HEADER_LEN = 0 , IGNORABLE_HEADER_LEN = 0 , ROWS_HEADER_LEN_V2 = 10 , TRANSACTION_CONTEXT_HEADER_LEN = 18 , VIEW_CHANGE_HEADER_LEN = 52 , XA_PREPARE_HEADER_LEN = 0 , TRANSACTION_PAYLOAD_HEADER_LEN = 0 } |
The lengths for the fixed data part of each event. More... | |
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enum | enum_skip_reason { EVENT_SKIP_NOT , EVENT_SKIP_IGNORE , EVENT_SKIP_COUNT } |
Enumeration of what kinds of skipping (and non-skipping) that can occur when the slave executes an event. More... | |
enum | enum_mts_event_exec_mode { EVENT_EXEC_PARALLEL , EVENT_EXEC_ASYNC , EVENT_EXEC_SYNC , EVENT_EXEC_CAN_NOT } |
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static void | init_show_field_list (mem_root_deque< Item * > *field_list) |
init_show_field_list() prepares the column names and types for the output of SHOW BINLOG EVENTS; it is used only by SHOW BINLOG EVENTS. More... | |
static void | operator delete (void *ptr, size_t) |
static void * | operator new (size_t, void *ptr) |
static void | operator delete (void *, void *) |
static const char * | get_type_str (mysql::binlog::event::Log_event_type type) |
Returns the human readable name of the given event type. More... | |
static const char * | get_type_str (uint type) |
Get the name of an event type, or "Unknown" if out of range. More... | |
static bool | is_mts_sequential_exec (mysql::binlog::event::Log_event_type type_code) |
static enum enum_mts_event_exec_mode | get_mts_execution_mode (bool mts_in_group, mysql::binlog::event::Log_event_type type_code, uint32 server_id, uint32 log_pos) |
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char * | temp_buf |
bool | m_free_temp_buf_in_destructor |
ulong | exec_time |
uint32 | server_id |
ulong | rbr_exec_mode |
A storage to cache the global system variable's value. More... | |
enum_event_cache_type | event_cache_type |
Defines the type of the cache, if any, where the event will be stored before being flushed to disk. More... | |
enum_event_logging_type | event_logging_type |
Defines when information, i.e. More... | |
ha_checksum | crc |
Placeholder for event checksum while writing to binlog. More... | |
ulong | mts_group_idx |
Index in rli->gaq array to indicate a group that this event is purging. More... | |
mysql::binlog::event::Log_event_header * | common_header |
The Log_event_header class contains the variable present in the common header. More... | |
mysql::binlog::event::Log_event_footer * | common_footer |
The Log_event_footer class contains the variable present in the common footer. More... | |
Relay_log_info * | worker |
MTS: associating the event with either an assigned Worker or Coordinator. More... | |
ulonglong | future_event_relay_log_pos |
A copy of the main rli value stored into event to pass to MTS worker rli. More... | |
THD * | thd |
db_worker_hash_entry * | mts_assigned_partitions [MAX_DBS_IN_EVENT_MTS] |
Partition info associate with event to deliver to MTS event applier. More... | |
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static constexpr size_t | compression_type_max_length = 1 + 1 + 1 |
There are four fields: "compression type", "payload size", "uncompressed size", and "end mark". More... | |
static constexpr size_t | payload_size_max_length = 1 + 1 + 9 |
static constexpr size_t | uncompressed_size_max_length = 1 + 1 + 9 |
static constexpr size_t | end_mark_max_length = 1 |
static constexpr size_t | max_payload_data_header_length |
The maximum size of the "payload data header". More... | |
static constexpr size_t | max_length_of_all_headers |
The maximum size of all headers, i.e., everything but the payload. More... | |
static constexpr size_t | max_payload_length |
The maximum length of the payload size, defined such that the total event size does not exceed max_log_event_size. More... | |
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static const int | LOG_EVENT_TYPES = (ENUM_END_EVENT - 1) |
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enum | enum_event_cache_type { EVENT_INVALID_CACHE = 0 , EVENT_STMT_CACHE , EVENT_TRANSACTIONAL_CACHE , EVENT_NO_CACHE , EVENT_CACHE_COUNT } |
enum | enum_event_logging_type { EVENT_INVALID_LOGGING = 0 , EVENT_NORMAL_LOGGING , EVENT_IMMEDIATE_LOGGING , EVENT_CACHE_LOGGING_COUNT } |
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Binary_log_event (Log_event_type type_code) | |
This constructor is used to initialize the type_code of header object m_header. More... | |
Binary_log_event (const char **buf, const Format_description_event *fde) | |
This constructor will create a new object of Log_event_header and initialize the variable m_header, which in turn will be used to initialize Log_event's member common_header. More... | |
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uint32 | write_header_to_memory (uchar *buf) |
Writes the common header of this event to the given memory buffer. More... | |
bool | write_header (Basic_ostream *ostream, size_t data_length) |
Writes the common-header of this event to the given output stream and updates the checksum. More... | |
bool | write_footer (Basic_ostream *ostream) |
bool | need_checksum () |
A decider of whether to trigger checksum computation or not. More... | |
enum_skip_reason | continue_group (Relay_log_info *rli) |
Helper function to ignore an event w.r.t. More... | |
virtual int | do_update_pos (Relay_log_info *rli) |
Advance relay log coordinates. More... | |
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const char * | m_payload {nullptr} |
The compressed data, when entire payload is in one chunk. More... | |
Buffer_sequence_view_t * | m_buffer_sequence_view |
The compressed data, when payload consists of a sequence of buffers. More... | |
uint64_t | m_payload_size {0} |
The size of the compressed data. More... | |
mysql::binlog::event::compression::type | m_compression_type |
The compression algorithm that was used. More... | |
uint64_t | m_uncompressed_size {0} |
The uncompressed size of the data. More... | |
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bool Transaction_payload_log_event::apply_payload_event | ( | Relay_log_info const * | rli, |
const uchar * | event_buf | ||
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overridevirtual |
Allow thread to CLAIM or DISCLAIM the ownership of this object depends on the parameter value passed.
claim | True - claim ownership of the memory False - disclaim ownership of the memory |
Reimplemented from Log_event.
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overridevirtual |
Primitive to apply an event to the database.
This is where the change to the database is made.
rli | Pointer to relay log info structure |
0 | Event applied successfully |
errno | Error code if event application failed |
Reimplemented from Log_event.
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overridevirtual |
Decide if this event shall be skipped or not and the reason for skipping it.
The default implementation decide that the event shall be skipped if either:
rli->replicate_same_server_id
is true, orrli->slave_skip_counter
is greater than zero.Log_event::EVENT_SKIP_NOT | The event shall not be skipped and should be applied. |
Log_event::EVENT_SKIP_IGNORE | The event shall be skipped by just ignoring it, i.e., the slave skip counter shall not be changed. This happends if, for example, the originating server id of the event is the same as the server id of the slave. |
Log_event::EVENT_SKIP_COUNT | The event shall be skipped because the slave skip counter was non-zero. The caller shall decrease the counter by one. |
Reimplemented from Log_event.
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overridevirtual |
Reimplemented from Log_event.
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overridevirtual |
Reimplemented from Log_event.
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The method fills in pointers to event's database name c-strings to a supplied array.
In other than Query-log-event case the returned array contains just one item.
[out] | arg | pointer to a struct containing char* array pointers to be filled in and the number of filled instances. |
rpl_filter | pointer to a replication filter. |
Reimplemented from Log_event.
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Reimplemented from Log_event.
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overridevirtual |
Stores a string representation of this event in the Protocol.
This is used by SHOW BINLOG EVENTS.
0 | success |
nonzero | error |
Reimplemented from Log_event.
void Transaction_payload_log_event::set_mts_dbs | ( | Mts_db_names & | arg | ) |
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Reimplemented from Log_event.
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private |