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| -rw-r--r-- | sql/parse_file.h | 122 |
1 files changed, 122 insertions, 0 deletions
diff --git a/sql/parse_file.h b/sql/parse_file.h new file mode 100644 index 00000000..0589d628 --- /dev/null +++ b/sql/parse_file.h @@ -0,0 +1,122 @@ +/* -*- C++ -*- */ +/* Copyright (c) 2004, 2010, Oracle and/or its affiliates. All rights reserved. + + This program is free software; you can redistribute it and/or modify + it under the terms of the GNU General Public License as published by + the Free Software Foundation; version 2 of the License. + + This program is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + GNU General Public License for more details. + + You should have received a copy of the GNU General Public License + along with this program; if not, write to the Free Software + Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1335 USA */ + +#ifndef _PARSE_FILE_H_ +#define _PARSE_FILE_H_ + +#include "sql_string.h" // LEX_STRING +#include "sql_alloc.h" // Sql_alloc + +class THD; + +typedef struct st_mem_root MEM_ROOT; + +#define PARSE_FILE_TIMESTAMPLENGTH 19 + +enum file_opt_type { + FILE_OPTIONS_STRING, /**< String (LEX_STRING) */ + FILE_OPTIONS_ESTRING, /**< Escaped string (LEX_STRING) */ + FILE_OPTIONS_ULONGLONG, /**< ulonglong parameter (ulonglong) */ + FILE_OPTIONS_VIEW_ALGO, /**< Similar to longlong, but needs conversion */ + FILE_OPTIONS_TIMESTAMP, /**< timestamp (LEX_STRING have to be + allocated with length 20 (19+1) */ + FILE_OPTIONS_STRLIST, /**< list of escaped strings + (List<LEX_STRING>) */ + FILE_OPTIONS_ULLLIST /**< list of ulonglong values + (List<ulonglong>) */ +}; + +struct File_option +{ + LEX_CSTRING name; /**< Name of the option */ + my_ptrdiff_t offset; /**< offset to base address of value */ + file_opt_type type; /**< Option type */ +}; + + +/** + This hook used to catch no longer supported keys and process them for + backward compatibility. +*/ + +class Unknown_key_hook +{ +public: + Unknown_key_hook() = default; /* Remove gcc warning */ + virtual ~Unknown_key_hook() = default; /* Remove gcc warning */ + virtual bool process_unknown_string(const char *&unknown_key, uchar* base, + MEM_ROOT *mem_root, const char *end)= 0; +}; + + +/** Dummy hook for parsers which do not need hook for unknown keys. */ + +class File_parser_dummy_hook: public Unknown_key_hook +{ +public: + File_parser_dummy_hook() = default; /* Remove gcc warning */ + virtual bool process_unknown_string(const char *&unknown_key, uchar* base, + MEM_ROOT *mem_root, const char *end); +}; + +extern File_parser_dummy_hook file_parser_dummy_hook; + +bool get_file_options_ulllist(const char *&ptr, const char *end, + const char *line, uchar* base, + File_option *parameter, + MEM_ROOT *mem_root); + +const char * +parse_escaped_string(const char *ptr, const char *end, MEM_ROOT *mem_root, + LEX_CSTRING *str); + +class File_parser; +File_parser *sql_parse_prepare(const LEX_CSTRING *file_name, + MEM_ROOT *mem_root, bool bad_format_errors); + +my_bool +sql_create_definition_file(const LEX_CSTRING *dir, + const LEX_CSTRING *file_name, + const LEX_CSTRING *type, + uchar* base, File_option *parameters); +my_bool rename_in_schema_file(THD *thd, + const char *schema, const char *old_name, + const char *new_db, const char *new_name); + +int sql_backup_definition_file(const LEX_CSTRING *org_name, + LEX_CSTRING *new_name); +int sql_restore_definition_file(const LEX_CSTRING *name); + +class File_parser: public Sql_alloc +{ + char *start, *end; + LEX_CSTRING file_type; + bool content_ok; +public: + File_parser() :start(0), end(0), content_ok(0) + { file_type.str= 0; file_type.length= 0; } + + bool ok() { return content_ok; } + const LEX_CSTRING *type() const { return &file_type; } + my_bool parse(uchar* base, MEM_ROOT *mem_root, + struct File_option *parameters, uint required, + Unknown_key_hook *hook) const; + + friend File_parser *sql_parse_prepare(const LEX_CSTRING *file_name, + MEM_ROOT *mem_root, + bool bad_format_errors); +}; +#endif /* _PARSE_FILE_H_ */ |