Update SQLite3 Drivers

Update bundled drivers to version 1.2.4.

vendor/plugins/sqlite3-ruby/lib/sqlite3/driver/native/driver.rb

@@ -0,0 +1,211 @@
+require 'sqlite3_api'
+
+module SQLite3 ; module Driver ; module Native
+
+  class Driver
+
+    def initialize
+      @callback_data = Hash.new
+      @authorizer = Hash.new
+      @busy_handler = Hash.new
+      @trace = Hash.new
+    end
+
+    def complete?( sql, utf16=false )
+      API.send( utf16 ? :sqlite3_complete16 : :sqlite3_complete, sql ) != 0
+    end
+
+    def busy_handler( db, data=nil, &block )
+      if block
+        cb = API::CallbackData.new
+        cb.proc = block
+        cb.data = data
+        result = API.sqlite3_busy_handler( db, API::Sqlite3_ruby_busy_handler, cb )
+        # Reference the Callback object so that 
+        # it is not deleted by the GC
+        @busy_handler[db] = cb
+      else
+        # Unreference the callback *after* having removed it
+        # from sqlite
+        result = API.sqlite3_busy_handler( db, nil, nil )
+        @busy_handler.delete(db)
+      end
+
+      result
+    end
+
+    def set_authorizer( db, data=nil, &block )
+      if block
+        cb = API::CallbackData.new
+        cb.proc = block
+        cb.data = data
+        result = API.sqlite3_set_authorizer( db, API::Sqlite3_ruby_authorizer, cb )
+        @authorizer[db] = cb # see comments in busy_handler
+      else
+        result = API.sqlite3_set_authorizer( db, nil, nil )
+        @authorizer.delete(db) # see comments in busy_handler
+      end
+
+      result
+    end
+
+    def trace( db, data=nil, &block )
+      if block
+        cb = API::CallbackData.new
+        cb.proc = block
+        cb.data = data
+        result = API.sqlite3_trace( db, API::Sqlite3_ruby_trace, cb )
+        @trace[db] = cb # see comments in busy_handler
+      else
+        result = API.sqlite3_trace( db, nil, nil )
+        @trace.delete(db) # see comments in busy_handler
+      end
+
+      result
+    end
+
+    def open( filename, utf16=false )
+      API.send( utf16 ? :sqlite3_open16 : :sqlite3_open, filename )
+    end
+
+    def errmsg( db, utf16=false )
+      API.send( utf16 ? :sqlite3_errmsg16 : :sqlite3_errmsg, db )
+    end
+
+    def prepare( db, sql, utf16=false )
+      API.send( ( utf16 ? :sqlite3_prepare16 : :sqlite3_prepare ),
+        db, sql )
+    end
+
+    def bind_text( stmt, index, value, utf16=false )
+      API.send( ( utf16 ? :sqlite3_bind_text16 : :sqlite3_bind_text ),
+        stmt, index, value.to_s )
+    end
+
+    def column_name( stmt, index, utf16=false )
+      API.send( ( utf16 ? :sqlite3_column_name16 : :sqlite3_column_name ),
+        stmt, index )
+    end
+
+    def column_decltype( stmt, index, utf16=false )
+      API.send(
+        ( utf16 ? :sqlite3_column_decltype16 : :sqlite3_column_decltype ),
+        stmt, index )
+    end
+
+    def column_text( stmt, index, utf16=false )
+      API.send( ( utf16 ? :sqlite3_column_text16 : :sqlite3_column_text ),
+        stmt, index )
+    end
+
+    def create_function( db, name, args, text, cookie, func, step, final )
+      if func || ( step && final )
+        cb = API::CallbackData.new
+        cb.proc = cb.proc2 = nil
+        cb.data = cookie
+      end
+
+      if func
+        cb.proc = func
+
+        func = API::Sqlite3_ruby_function_step
+        step = final = nil
+      elsif step && final
+        cb.proc = step
+        cb.proc2 = final
+
+        func = nil
+        step = API::Sqlite3_ruby_function_step
+        final = API::Sqlite3_ruby_function_final
+      end
+
+      result = API.sqlite3_create_function( db, name, args, text, cb, func, step, final )
+
+      # see comments in busy_handler
+      if cb
+        @callback_data[ name ] = cb
+      else
+        @callback_data.delete( name )
+      end
+
+      return result
+    end
+
+    def value_text( value, utf16=false )
+      method = case utf16
+        when nil, false then :sqlite3_value_text
+        when :le then :sqlite3_value_text16le
+        when :be then :sqlite3_value_text16be
+        else :sqlite3_value_text16
+      end
+
+      API.send( method, value )
+    end
+
+    def result_text( context, result, utf16=false )
+      method = case utf16
+        when nil, false then :sqlite3_result_text
+        when :le then :sqlite3_result_text16le
+        when :be then :sqlite3_result_text16be
+        else :sqlite3_result_text16
+      end
+
+      API.send( method, context, result.to_s )
+    end
+
+    def result_error( context, value, utf16=false )
+      API.send( ( utf16 ? :sqlite3_result_error16 : :sqlite3_result_error ),
+        context, value )
+    end
+
+    def self.api_delegate( name )
+      eval "def #{name} (*args) API.sqlite3_#{name}( *args ) ; end"
+    end
+
+    api_delegate :libversion
+    api_delegate :close
+    api_delegate :last_insert_rowid
+    api_delegate :changes
+    api_delegate :total_changes
+    api_delegate :interrupt
+    api_delegate :busy_timeout
+    api_delegate :errcode
+    api_delegate :bind_blob
+    api_delegate :bind_double
+    api_delegate :bind_int
+    api_delegate :bind_int64
+    api_delegate :bind_null
+    api_delegate :bind_parameter_count
+    api_delegate :bind_parameter_name
+    api_delegate :bind_parameter_index
+    api_delegate :column_count
+    api_delegate :step
+    api_delegate :data_count
+    api_delegate :column_blob
+    api_delegate :column_bytes
+    api_delegate :column_bytes16
+    api_delegate :column_double
+    api_delegate :column_int
+    api_delegate :column_int64
+    api_delegate :column_type
+    api_delegate :finalize
+    api_delegate :reset
+    api_delegate :aggregate_count
+    api_delegate :value_blob
+    api_delegate :value_bytes
+    api_delegate :value_bytes16
+    api_delegate :value_double
+    api_delegate :value_int
+    api_delegate :value_int64
+    api_delegate :value_type
+    api_delegate :result_blob
+    api_delegate :result_double
+    api_delegate :result_int
+    api_delegate :result_int64
+    api_delegate :result_null
+    api_delegate :result_value
+    api_delegate :aggregate_context
+
+  end
+
+end ; end ; end