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Diff for /parser3/src/sql/pa_sql_driver.h between versions 1.36 and 1.44

version 1.36, 2003/11/20 16:34:27 version 1.44, 2008/06/26 09:42:35
Line 1 Line 1
 /** @file  /** @file
         Parser: sql driver interface.          Parser: sql driver interface.
   
         Copyright (c) 2001-2003 ArtLebedev Group (http://www.artlebedev.com)          Copyright (c) 2001-2005 ArtLebedev Group (http://www.artlebedev.com)
         Author: Alexandr Petrosian <paf@design.ru> (http://paf.design.ru)          Author: Alexandr Petrosian <paf@design.ru> (http://paf.design.ru)
   
   
Line 31  static const char * const IDENT_SQL_DRIV Line 31  static const char * const IDENT_SQL_DRIV
 #include <sys/types.h>  #include <sys/types.h>
 #include <setjmp.h>  #include <setjmp.h>
 #include <stdlib.h>  #include <stdlib.h>
   #include <limits.h>
   
 #define SQL_DRIVER_API_VERSION 0x0007  /*
       1..8 not logged
           9 introducing placeholders
           10 limit fixed (default: SQL_NO_LIMIT [ULONG_MAX]), path to document_root added
   */
   //#define SQL_DRIVER_API_VERSION 10
   #define SQL_DRIVER_API_VERSION 9
 #define SQL_DRIVER_CREATE create /* used in driver implementation */  #define SQL_DRIVER_CREATE create /* used in driver implementation */
 #define SQL_DRIVER_CREATE_NAME "create" /* could not figure out how to # it :( */  #define SQL_DRIVER_CREATE_NAME "create" /* could not figure out how to # it :( */
   
   //#define SQL_NO_LIMIT ULONG_MAX
   #define SQL_NO_LIMIT 0
   
 /// fields are freed elsewhere  /// fields are freed elsewhere
 class SQL_Error {  class SQL_Error {
         bool fdefined;          bool fdefined;
Line 75  public: Line 85  public:
         virtual void *malloc_atomic(size_t size) =0;          virtual void *malloc_atomic(size_t size) =0;
         /// reallocates bytes           /// reallocates bytes 
         virtual void *realloc(void *ptr, size_t size) =0;          virtual void *realloc(void *ptr, size_t size) =0;
           /// $request:charset
           virtual const char* request_charset() =0;
           /// $request:document-root
           virtual const char* request_document_root() =0;
           /// transcoder. 
           /// WARNING: can store pointers to charset names to speedup name-to-instance resolving
           /// so do NOT pass pointers to local vars and change those vars after that
           virtual void transcode(const char* src, size_t src_length,
                   const char*& dst, size_t& dst_length,
                   const char* charset_from_name,
                   const char* charset_to_name
                   ) =0;
         /// prepare throw exception          /// prepare throw exception
         virtual void _throw(const SQL_Error& e) =0;          virtual void _throw(const SQL_Error& e) =0;
         /// throw C++ exception from prepared          /// throw C++ exception from prepared
Line 103  public: Line 125  public:
 class SQL_Driver {  class SQL_Driver {
 public:  public:
   
           /// @todo can be optimized to contain type information, 
           /// to pass IN and OUT int/double NOT in string format
           struct Placeholder {
                   const char* name;
                   const char* value;
                   bool is_null;
                   bool were_updated;
           };
   
         /** allocated using our allocator,          /** allocated using our allocator,
                 @todo never freed                  @todo never freed
         */          */
Line 118  public: Line 149  public:
         /// initialize driver by loading sql dynamic link library          /// initialize driver by loading sql dynamic link library
         virtual const char* initialize(char *dlopen_file_spec) =0;          virtual const char* initialize(char *dlopen_file_spec) =0;
         /**     connect to sql database using           /**     connect to sql database using 
                 @param used_only_to_connect_url                   @param url_cstr
                         format is driver specific                          format is driver specific
                         WARNING: must be used only to connect, for buffer doesn't live long enough  
   
                 @returns true+'connection' on success. 'error' on failure                  @returns true+'connection' on success. 'error' on failure
         */          */
         virtual void connect(char *used_only_in_connect_url_cstr,           virtual void connect(char *url_cstr, 
                 SQL_Driver_services& services, void **connection) =0;                  SQL_Driver_services& services, void **connection) =0;
         virtual void disconnect(void *connection) =0;          virtual void disconnect(void *connection) =0;
         virtual void commit(          virtual void commit(void *connection) =0;
                 SQL_Driver_services& services, void *connection) =0;          virtual void rollback(void *connection) =0;
         virtual void rollback(  
                 SQL_Driver_services& services, void *connection) =0;  
         /// @returns true to indicate that connection still alive           /// @returns true to indicate that connection still alive 
         virtual bool ping(          virtual bool ping(void *connection) =0;
                 SQL_Driver_services& services, void *connection) =0;  
         /// encodes the string in 'from' to an escaped SQL string          /// encodes the string in 'from' to an escaped SQL string
         virtual const char* quote(          virtual const char* quote(void *connection,
                 SQL_Driver_services& services, void *connection,  
                 const char* str, unsigned int length) =0;                  const char* str, unsigned int length) =0;
         virtual void query(          virtual void query(void *connection,
                 SQL_Driver_services& services, void *connection,                  const char* statement, 
                 const char* statement, unsigned long offset, unsigned long limit,                  size_t placeholders_count, Placeholder* placeholders,
                   unsigned long offset, unsigned long limit,
                 SQL_Driver_query_event_handlers& handlers) =0;                  SQL_Driver_query_event_handlers& handlers) =0;
 };  };
   
Removed from v.1.36  
changed lines
  Added in v.1.44

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