shard_parser.c File Reference

#include "shard_parser.h"
#include "shard_proxy_log.h"

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Functions
static const char *	left_trim (const char *str)
static int	sp_init_sp_value (SP_VALUE *value_p)
static void	sp_free_sp_value (SP_VALUE *value_p)
static int	sp_make_sp_value (SP_VALUE *value_p, const char *pos, int length)
static int	sp_make_string_sp_value (SP_VALUE *value_p, const char *pos, int length)
static int	sp_make_int_sp_value_from_string (SP_VALUE *value_p, char *pos, int length)
static void	sp_init_praser_hint_list (SP_PARSER_HINT_LIST *list)
static void	sp_append_parser_hint_to_ctx (SP_PARSER_CTX *parser_p, SP_PARSER_HINT *hint_p)
static int	sp_parse_sql_internal (SP_PARSER_CTX *parser_p)
static void	sp_free_parser_hint_from_ctx (SP_PARSER_CTX *parser_p)
static int	sp_process_token (SP_PARSER_CTX *parser_p, SP_TOKEN token_type)
static int	sp_get_bind_type_and_value (SP_PARSER_CTX *parser_p, SP_PARSER_HINT *hint_p)
static void	sp_copy_cursor_to_prv (SP_PARSER_CTX *parser_p)
static int	sp_get_string_bind_value (SP_PARSER_CTX *parser_p, SP_PARSER_HINT *hint_p)
static int	sp_get_int_bind_value (SP_PARSER_CTX *parser_p, SP_PARSER_HINT *hint_p)
static int	sp_is_valid_hint (SP_PARSER_CTX *parser_p, SP_PARSER_HINT *hint_p)
static bool	sp_is_start_token (SP_TOKEN token)
SP_PARSER_CTX *	sp_create_parser (const char *sql_stmt)
int	sp_parse_sql (SP_PARSER_CTX *parser_p)
void	sp_destroy_parser (SP_PARSER_CTX *parser_p)
bool	sp_is_hint_static (SP_PARSER_CTX *parser_p)
int	sp_get_total_hint_count (SP_PARSER_CTX *parser_p)
int	sp_get_static_hint_count (SP_PARSER_CTX *parser_p)
int	sp_get_dynamic_hint_count (SP_PARSER_CTX *parser_p)
SP_PARSER_HINT *	sp_get_first_hint (SP_PARSER_CTX *parser_p)
SP_PARSER_HINT *	sp_get_next_hint (SP_PARSER_HINT *hint_p)
SP_PARSER_HINT *	sp_get_first_static_hint (SP_PARSER_CTX *parser_p)
SP_PARSER_HINT *	sp_get_next_static_hint (SP_PARSER_HINT *hint_p)
SP_PARSER_HINT *	sp_get_first_dynamic_hint (SP_PARSER_CTX *parser_p)
SP_PARSER_HINT *	sp_get_next_dynamic_hint (SP_PARSER_HINT *hint_p)
char *	sp_get_hint_key (SP_PARSER_HINT *hint_p)
const char *	sp_get_sql_stmt (SP_PARSER_CTX *parser_p)
bool	sp_is_pair_token (SP_TOKEN start_token, SP_TOKEN end_token)
SP_PARSER_HINT *	sp_create_parser_hint (void)
void	sp_free_parser_hint (SP_PARSER_HINT *hint_p)
const char *	sp_get_token_type (const char *sql, SP_TOKEN *token)
const char *	sp_get_hint_type (const char *sql, SP_HINT_TYPE *hint_type)
const char *	sp_get_hint_arg (const char *sql, SP_PARSER_HINT *hint_p, int *error)
const char *	sp_check_end_of_hint (const char *sql, int *error)
bool	sp_is_exist_pair_token (SP_TOKEN token)

Function Documentation

static const char * left_trim ( const char *  str )

inlinestatic

Definition at line 236 of file shard_parser.c.

References p.

Referenced by sp_check_end_of_hint(), sp_get_bind_type_and_value(), sp_get_hint_arg(), sp_get_hint_type(), sp_is_pair_token(), and sp_make_sp_value().

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static void sp_append_parser_hint_to_ctx ( SP_PARSER_CTX *  parser_p, SP_PARSER_HINT *  hint_p  )

static

Definition at line 387 of file shard_parser.c.

References sp_parser_hint::bind_type, sp_parser_hint_list::head, sp_parser_ctx::list_a, sp_parser_ctx::list_t, sp_parser_hint::next_a, sp_parser_hint::next_t, NULL, sp_parser_hint_list::size, and sp_parser_hint_list::tail.

Referenced by sp_process_token().

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const char* sp_check_end_of_hint	(	const char *	sql,
		int *	error
	)

Definition at line 649 of file shard_parser.c.

References ER_SP_INVALID_HINT, left_trim(), and NO_ERROR.

Referenced by shard_stmt_change_shard_val_to_id(), and sp_process_token().

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static void sp_copy_cursor_to_prv ( SP_PARSER_CTX *  parser_p )

inlinestatic

Definition at line 786 of file shard_parser.c.

References sp_parser_ctx::cursor, sp_parser_ctx::prv_cursor, sp_cursor::token, and TT_NONE.

Referenced by sp_get_bind_type_and_value(), and sp_parse_sql_internal().

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SP_PARSER_CTX* sp_create_parser

(

const char *

sql_stmt

)

Definition at line 63 of file shard_parser.c.

References sp_parser_ctx::bind_count, BT_DYNAMIC, BT_STATIC, sp_parser_ctx::cursor, sp_parser_ctx::is_select, sp_parser_ctx::list_a, sp_parser_ctx::list_t, NULL, sp_parser_ctx::operator_, sp_cursor::pos, PROXY_LOG, PROXY_LOG_MODE_ERROR, sp_parser_ctx::prv_cursor, sp_init_praser_hint_list(), sp_parser_ctx::sql_stmt, strdup(), sp_cursor::token, and TT_NONE.

Referenced by shard_stmt_new_internal().

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SP_PARSER_HINT* sp_create_parser_hint

(

void

)

Definition at line 333 of file shard_parser.c.

References sp_parser_hint::arg, sp_parser_hint::bind_position, sp_parser_hint::bind_type, BT_DYNAMIC, BT_STATIC, error(), sp_parser_hint::hint_type, HT_NONE, sp_parser_hint::next_a, sp_parser_hint::next_t, NO_ERROR, NULL, PROXY_LOG, PROXY_LOG_MODE_ERROR, sp_free_parser_hint(), sp_init_sp_value(), and sp_parser_hint::value.

Referenced by shard_stmt_change_shard_val_to_id(), and sp_process_token().

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void sp_destroy_parser

(

SP_PARSER_CTX *

parser_p

)

Definition at line 116 of file shard_parser.c.

References NULL, sp_free_parser_hint_from_ctx(), and sp_parser_ctx::sql_stmt.

Referenced by shard_stmt_destroy(), and shard_stmt_free().

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void sp_free_parser_hint

(

SP_PARSER_HINT *

hint_p

)

Definition at line 416 of file shard_parser.c.

References sp_parser_hint::arg, NULL, sp_free_sp_value(), and sp_parser_hint::value.

Referenced by shard_stmt_change_shard_val_to_id(), sp_create_parser_hint(), sp_free_parser_hint_from_ctx(), and sp_process_token().

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static void sp_free_parser_hint_from_ctx ( SP_PARSER_CTX *  parser_p )

static

Definition at line 474 of file shard_parser.c.

References NULL, sp_free_parser_hint(), sp_get_first_hint(), and sp_get_next_hint().

Referenced by sp_destroy_parser().

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static void sp_free_sp_value ( SP_VALUE *  value_p )

static

Definition at line 262 of file shard_parser.c.

References NULL, sp_value::string, and sp_value::value_ex.

Referenced by sp_free_parser_hint().

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static int sp_get_bind_type_and_value ( SP_PARSER_CTX *  parser_p, SP_PARSER_HINT *  hint_p  )

static

Definition at line 749 of file shard_parser.c.

References sp_parser_ctx::bind_count, sp_parser_hint::bind_position, sp_parser_hint::bind_type, BT_DYNAMIC, sp_parser_ctx::cursor, error(), left_trim(), NO_ERROR, sp_cursor::pos, sp_copy_cursor_to_prv(), sp_get_int_bind_value(), and sp_get_string_bind_value().

Referenced by sp_process_token().

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int sp_get_dynamic_hint_count

(

SP_PARSER_CTX *

parser_p

)

Definition at line 149 of file shard_parser.c.

References BT_DYNAMIC, sp_parser_ctx::list_t, and sp_parser_hint_list::size.

SP_PARSER_HINT* sp_get_first_dynamic_hint

(

SP_PARSER_CTX *

parser_p

)

Definition at line 179 of file shard_parser.c.

References BT_DYNAMIC, sp_parser_hint_list::head, and sp_parser_ctx::list_t.

SP_PARSER_HINT* sp_get_first_hint

(

SP_PARSER_CTX *

parser_p

)

Definition at line 155 of file shard_parser.c.

References sp_parser_hint_list::head, and sp_parser_ctx::list_a.

Referenced by proxy_get_shard_id(), proxy_update_shard_stats(), shard_stmt_get_hint_type(), shard_stmt_set_hint_list(), and sp_free_parser_hint_from_ctx().

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SP_PARSER_HINT* sp_get_first_static_hint

(

SP_PARSER_CTX *

parser_p

)

Definition at line 167 of file shard_parser.c.

References BT_STATIC, sp_parser_hint_list::head, and sp_parser_ctx::list_t.

const char* sp_get_hint_arg	(	const char *	sql,
		SP_PARSER_HINT *	hint_p,
		int *	error
	)

Definition at line 610 of file shard_parser.c.

References sp_parser_hint::arg, ER_SP_INVALID_HINT, sp_parser_hint::hint_type, HT_ID, HT_VAL, left_trim(), NO_ERROR, p, sp_get_token_type(), sp_is_pair_token(), sp_make_sp_value(), and TT_LEFT_BRAKET.

Referenced by shard_stmt_change_shard_val_to_id(), and sp_process_token().

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char* sp_get_hint_key

(

SP_PARSER_HINT *

hint_p

)

Definition at line 191 of file shard_parser.c.

References sp_parser_hint::arg, sp_value::string, and sp_value::value.

const char* sp_get_hint_type	(	const char *	sql,
		SP_HINT_TYPE *	hint_type
	)

Definition at line 575 of file shard_parser.c.

References HT_ALL, HT_ID, HT_KEY, HT_NONE, HT_VAL, and left_trim().

Referenced by shard_stmt_rewrite_sql(), and sp_process_token().

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static int sp_get_int_bind_value ( SP_PARSER_CTX *  parser_p, SP_PARSER_HINT *  hint_p  )

static

Definition at line 813 of file shard_parser.c.

References sp_parser_ctx::cursor, p, sp_cursor::pos, sp_make_int_sp_value_from_string(), sp_parser_hint::value, and while().

Referenced by sp_get_bind_type_and_value().

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SP_PARSER_HINT* sp_get_next_dynamic_hint

(

SP_PARSER_HINT *

hint_p

)

Definition at line 185 of file shard_parser.c.

References BT_DYNAMIC, and sp_parser_hint::next_t.

SP_PARSER_HINT* sp_get_next_hint

(

SP_PARSER_HINT *

hint_p

)

Definition at line 161 of file shard_parser.c.

References sp_parser_hint::next_a.

Referenced by proxy_get_shard_id(), shard_stmt_set_hint_list(), and sp_free_parser_hint_from_ctx().

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SP_PARSER_HINT* sp_get_next_static_hint

(

SP_PARSER_HINT *

hint_p

)

Definition at line 173 of file shard_parser.c.

References BT_STATIC, and sp_parser_hint::next_t.

const char* sp_get_sql_stmt

(

SP_PARSER_CTX *

parser_p

)

Definition at line 197 of file shard_parser.c.

References sp_parser_ctx::sql_stmt.

Referenced by shard_stmt_del_statement_from_map(), shard_stmt_find_by_sql(), and shard_stmt_put_statement_to_map().

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int sp_get_static_hint_count

(

SP_PARSER_CTX *

parser_p

)

Definition at line 143 of file shard_parser.c.

References BT_STATIC, sp_parser_ctx::list_t, and sp_parser_hint_list::size.

static int sp_get_string_bind_value ( SP_PARSER_CTX *  parser_p, SP_PARSER_HINT *  hint_p  )

static

Definition at line 794 of file shard_parser.c.

References sp_parser_ctx::cursor, ER_SP_INVALID_SYNTAX, NULL, p, sp_cursor::pos, sp_make_string_sp_value(), sp_parser_hint::value, and while().

Referenced by sp_get_bind_type_and_value().

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const char* sp_get_token_type	(	const char *	sql,
		SP_TOKEN *	token
	)

Definition at line 489 of file shard_parser.c.

References p, TT_ASSIGN_OP, TT_BIND_CHAR, TT_C_COMMENT, TT_C_COMMENT_END, TT_CPP_COMMENT, TT_CSQL_COMMENT, TT_DOUBLE_QUOTED, TT_HINT, TT_IN_OP, TT_LEFT_BRAKET, TT_NEWLINE, TT_NONE, TT_RIGHT_BRAKET, TT_SINGLE_QUOTED, and TT_WHITESPACE.

Referenced by shard_stmt_rewrite_sql(), sp_get_hint_arg(), sp_make_sp_value(), and sp_parse_sql_internal().

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int sp_get_total_hint_count

(

SP_PARSER_CTX *

parser_p

)

Definition at line 137 of file shard_parser.c.

References sp_parser_ctx::list_a, and sp_parser_hint_list::size.

static void sp_init_praser_hint_list ( SP_PARSER_HINT_LIST *  list )

static

Definition at line 379 of file shard_parser.c.

References sp_parser_hint_list::head, NULL, sp_parser_hint_list::size, and sp_parser_hint_list::tail.

Referenced by sp_create_parser().

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static int sp_init_sp_value ( SP_VALUE *  value_p )

static

Definition at line 250 of file shard_parser.c.

References sp_value::integer, sp_value::length, NO_ERROR, NULL, sp_value::string, sp_value::type, sp_value::value, sp_value::value_arr, sp_value::value_ex, and VT_INTEGER.

Referenced by sp_create_parser_hint().

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bool sp_is_exist_pair_token

(

SP_TOKEN

token

)

Definition at line 852 of file shard_parser.c.

References TT_ASSIGN_OP, TT_BIND_CHAR, TT_C_COMMENT_END, TT_IN_OP, TT_LEFT_BRAKET, TT_NEWLINE, TT_NONE, TT_RIGHT_BRAKET, TT_SHARD_HINT, and TT_WHITESPACE.

Referenced by shard_stmt_rewrite_sql(), and sp_parse_sql_internal().

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bool sp_is_hint_static

(

SP_PARSER_CTX *

parser_p

)

Definition at line 131 of file shard_parser.c.

References BT_STATIC, sp_parser_ctx::list_a, sp_parser_ctx::list_t, and sp_parser_hint_list::size.

Referenced by fn_proxy_client_prepare().

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bool sp_is_pair_token	(	SP_TOKEN	start_token,
		SP_TOKEN	end_token
	)

Definition at line 203 of file shard_parser.c.

References left_trim(), TT_ASSIGN_OP, TT_BIND_CHAR, TT_C_COMMENT, TT_C_COMMENT_END, TT_CPP_COMMENT, TT_CSQL_COMMENT, TT_DOUBLE_QUOTED, TT_HINT, TT_IN_OP, TT_LEFT_BRAKET, TT_NEWLINE, TT_NONE, TT_RIGHT_BRAKET, TT_SHARD_HINT, TT_SINGLE_QUOTED, and TT_WHITESPACE.

Referenced by shard_stmt_rewrite_sql(), sp_get_hint_arg(), and sp_parse_sql_internal().

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static bool sp_is_start_token ( SP_TOKEN  token )

static

Definition at line 840 of file shard_parser.c.

References TT_C_COMMENT_END.

Referenced by sp_parse_sql_internal().

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static int sp_is_valid_hint ( SP_PARSER_CTX *  parser_p, SP_PARSER_HINT *  hint_p  )

static

Definition at line 827 of file shard_parser.c.

References ER_SP_INVALID_SYNTAX, sp_parser_hint::hint_type, HT_KEY, sp_parser_ctx::is_select, NO_ERROR, sp_parser_ctx::operator_, TT_ASSIGN_OP, and TT_IN_OP.

Referenced by sp_process_token().

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static int sp_make_int_sp_value_from_string ( SP_VALUE *  value_p, char *  pos, int  length  )

static

Definition at line 316 of file shard_parser.c.

References ER_SP_INVALID_HINT, sp_value::integer, NO_ERROR, parse_bigint(), sp_value::type, and VT_INTEGER.

Referenced by sp_get_int_bind_value(), and sp_make_sp_value().

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static int sp_make_sp_value ( SP_VALUE *  value_p, const char *  pos, int  length  )

static

Definition at line 271 of file shard_parser.c.

References left_trim(), p, sp_get_token_type(), sp_make_int_sp_value_from_string(), sp_make_string_sp_value(), TT_DOUBLE_QUOTED, and TT_SINGLE_QUOTED.

Referenced by sp_get_hint_arg().

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static int sp_make_string_sp_value ( SP_VALUE *  value_p, const char *  pos, int  length  )

static

Definition at line 292 of file shard_parser.c.

References ER_SP_INVALID_HINT, ER_SP_OUT_OF_MEMORY, sp_value::length, NO_ERROR, NULL, SP_VALUE_INIT_SIZE, sp_value::string, sp_value::type, sp_value::value, sp_value::value_ex, and VT_STRING.

Referenced by sp_get_string_bind_value(), and sp_make_sp_value().

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int sp_parse_sql

(

SP_PARSER_CTX *

parser_p

)

Definition at line 96 of file shard_parser.c.

References sp_parser_ctx::cursor, ER_SP_INVALID_SYNTAX, error(), NO_ERROR, PROXY_LOG, PROXY_LOG_MODE_ERROR, sp_parse_sql_internal(), sp_cursor::token, and TT_NONE.

Referenced by shard_stmt_set_hint_list().

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static int sp_parse_sql_internal ( SP_PARSER_CTX *  parser_p )

static

Definition at line 426 of file shard_parser.c.

References sp_parser_ctx::cursor, ER_SP_INVALID_SYNTAX, error(), NO_ERROR, sp_cursor::pos, sp_copy_cursor_to_prv(), sp_get_token_type(), sp_is_exist_pair_token(), sp_is_pair_token(), sp_is_start_token(), sp_process_token(), sp_cursor::token, TT_CPP_COMMENT, TT_CSQL_COMMENT, and TT_NONE.

Referenced by sp_parse_sql().

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static int sp_process_token ( SP_PARSER_CTX *  parser_p, SP_TOKEN  token_type  )

static

Definition at line 666 of file shard_parser.c.

References sp_parser_ctx::bind_count, sp_parser_ctx::cursor, ER_SP_OUT_OF_MEMORY, error(), sp_parser_hint::hint_type, HT_KEY, HT_NONE, NO_ERROR, NULL, sp_parser_ctx::operator_, sp_cursor::pos, sp_append_parser_hint_to_ctx(), sp_check_end_of_hint(), sp_create_parser_hint(), sp_free_parser_hint(), sp_get_bind_type_and_value(), sp_get_hint_arg(), sp_get_hint_type(), sp_is_valid_hint(), sp_cursor::token, TT_ASSIGN_OP, TT_BIND_CHAR, TT_HINT, TT_IN_OP, TT_NONE, TT_RIGHT_BRAKET, and TT_SHARD_HINT.

Referenced by sp_parse_sql_internal().

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