/* Copyright (C) 2000 MySQL AB & MySQL Finland AB & TCX DataKonsult AB 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; either version 2 of the License, or (at your option) any later version. 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., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA */ #ifdef USE_PRAGMA_INTERFACE #pragma interface /* gcc class implementation */ #endif class i_string; class THD; typedef struct st_mysql_field MYSQL_FIELD; typedef struct st_mysql_rows MYSQL_ROWS; class Protocol { protected: THD *thd; String *packet; String *convert; uint field_pos; #ifndef DEBUG_OFF enum enum_field_types *field_types; #endif uint field_count; #ifndef EMBEDDED_LIBRARY bool net_store_data(const char *from, uint length); #else virtual bool net_store_data(const char *from, uint length); char **next_field; MYSQL_FIELD *next_mysql_field; MEM_ROOT *alloc; #endif bool store_string_aux(const char *from, uint length, CHARSET_INFO *fromcs, CHARSET_INFO *tocs); public: Protocol() {} Protocol(THD *thd_arg) { init(thd_arg); } virtual ~Protocol() {} void init(THD* thd_arg); bool send_fields(List *list, uint flag); bool send_records_num(List *list, ulonglong records); bool store(I_List *str_list); bool store(const char *from, CHARSET_INFO *cs); String *storage_packet() { return packet; } inline void free() { packet->free(); } #ifndef EMBEDDED_LIBRARY bool write(); #else virtual bool write(); #endif inline bool store(uint32 from) { return store_long((longlong) from); } inline bool store(longlong from) { return store_longlong((longlong) from, 0); } inline bool store(ulonglong from) { return store_longlong((longlong) from, 1); } inline bool store(String *str) { return store((char*) str->ptr(), str->length(), str->charset()); } virtual bool prepare_for_send(List *item_list) { field_count=item_list->elements; return 0; } virtual bool flush(); virtual void prepare_for_resend()=0; virtual bool store_null()=0; virtual bool store_tiny(longlong from)=0; virtual bool store_short(longlong from)=0; virtual bool store_long(longlong from)=0; virtual bool store_longlong(longlong from, bool unsigned_flag)=0; virtual bool store(const char *from, uint length, CHARSET_INFO *cs)=0; virtual bool store(const char *from, uint length, CHARSET_INFO *fromcs, CHARSET_INFO *tocs)=0; virtual bool store(float from, uint32 decimals, String *buffer)=0; virtual bool store(double from, uint32 decimals, String *buffer)=0; virtual bool store(TIME *time)=0; virtual bool store_date(TIME *time)=0; virtual bool store_time(TIME *time)=0; virtual bool store(Field *field)=0; }; /* Class used for the old (MySQL 4.0 protocol) */ class Protocol_simple :public Protocol { public: Protocol_simple() {} Protocol_simple(THD *thd_arg) :Protocol(thd_arg) {} virtual void prepare_for_resend(); virtual bool store_null(); virtual bool store_tiny(longlong from); virtual bool store_short(longlong from); virtual bool store_long(longlong from); virtual bool store_longlong(longlong from, bool unsigned_flag); virtual bool store(const char *from, uint length, CHARSET_INFO *cs); virtual bool store(const char *from, uint length, CHARSET_INFO *fromcs, CHARSET_INFO *tocs); virtual bool store(TIME *time); virtual bool store_date(TIME *time); virtual bool store_time(TIME *time); virtual bool store(float nr, uint32 decimals, String *buffer); virtual bool store(double from, uint32 decimals, String *buffer); virtual bool store(Field *field); }; class Protocol_prep :public Protocol { private: uint bit_fields; public: Protocol_prep() {} Protocol_prep(THD *thd_arg) :Protocol(thd_arg) {} virtual bool prepare_for_send(List *item_list); virtual void prepare_for_resend(); #ifdef EMBEDDED_LIBRARY virtual bool write(); bool net_store_data(const char *from, uint length); #endif virtual bool store_null(); virtual bool store_tiny(longlong from); virtual bool store_short(longlong from); virtual bool store_long(longlong from); virtual bool store_longlong(longlong from, bool unsigned_flag); virtual bool store(const char *from,uint length, CHARSET_INFO *cs); virtual bool store(const char *from, uint length, CHARSET_INFO *fromcs, CHARSET_INFO *tocs); virtual bool store(TIME *time); virtual bool store_date(TIME *time); virtual bool store_time(TIME *time); virtual bool store(float nr, uint32 decimals, String *buffer); virtual bool store(double from, uint32 decimals, String *buffer); virtual bool store(Field *field); }; class Protocol_cursor :public Protocol_simple { public: MEM_ROOT *alloc; MYSQL_FIELD *fields; MYSQL_ROWS *data; MYSQL_ROWS **prev_record; ulong row_count; Protocol_cursor() {} Protocol_cursor(THD *thd_arg, MEM_ROOT *ini_alloc) :Protocol_simple(thd_arg), alloc(ini_alloc) {} bool prepare_for_send(List *item_list) { fields= NULL; data= NULL; prev_record= &data; return Protocol_simple::prepare_for_send(item_list); } bool send_fields(List *list, uint flag); bool write(); }; void send_warning(THD *thd, uint sql_errno, const char *err=0); void net_printf(THD *thd,uint sql_errno, ...); void send_ok(THD *thd, ha_rows affected_rows=0L, ulonglong id=0L, const char *info=0); void send_eof(THD *thd, bool no_flush=0); bool send_old_password_request(THD *thd); char *net_store_length(char *packet,uint length); char *net_store_data(char *to,const char *from, uint length); char *net_store_data(char *to,int32 from); char *net_store_data(char *to,longlong from);