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Merge pull request #7083 from FirebirdSQL/cursor-info
ResultSet::getInfo() implementation
This commit is contained in:
Dmitry Yemanov
GitHub
commit
44b76cc2ea
@ -1796,15 +1796,15 @@ interface – replaces isc_db_handle:</font></p>
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cursor (analogue of isc_dsql_set_cursor_name()). Parameter
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cursorFlags is needed to open bidirectional cursor setting it's
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value to Istatement::CURSOR_TYPE_SCROLLABLE.</font></p>
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<li><p><font size="4" style="font-size: 14pt">I</font><font face="Liberation Serif, serif"><font size="4" style="font-size: 14pt">Batch*
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<li><p style="margin-bottom: 0cm"><font size="4" style="font-size: 14pt">IBatch*
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createBatch(StatusType* status, ITransaction* transaction, unsigned
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stmtLength, const char* sqlStmt, unsigned dialect, IMessageMetadata*
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inMetadata, unsigned</font></font> <font face="Liberation Serif, serif"><font size="4" style="font-size: 14pt">parLength,
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inMetadata, unsigned parLength,
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const unsigned char* par) – prepares sqlStmt and creates <a href="#Batch">Batch</a>
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interface ready to accept multiple sets of input parameters in
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inMetadata format. Leaving inMetadata</font></font> <font face="Liberation Serif, serif"><font size="4" style="font-size: 14pt">NULL
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inMetadata format. Leaving inMetadata NULL
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makes batch use default format for sqlStmt. Parameters block may be
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passed to createBatch() making it possible to adjust batch behavior.</font></font></p>
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passed to createBatch() making it possible to adjust batch behavior.</font></p>
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<li><p style="margin-bottom: 0cm"><font size="4" style="font-size: 14pt">IEvents*
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queEvents(StatusType* status, IEventCallback* callback, unsigned
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length, const unsigned char* events) – replaces isc_que_events()
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@ -1951,7 +1951,6 @@ possible buffer size (one set by TAG_BUFFER_BYTES_SIZE)</font></p>
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<a href="#Batch">Batch</a> interface. It contains more or less
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(depending upon parameters passed when <a href="#Batch">Batch</a> was
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created) detailed information about the results of batch execution.</font></p>
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<p style="margin-bottom: 0cm"><font size="4" style="font-size: 14pt">{</font></p>
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<ol>
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<li><p style="margin-bottom: 0cm"><font size="4" style="font-size: 14pt">uint
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getSize(StatusType* status) – returns the total number of
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@ -2377,14 +2376,13 @@ with execution of SQL statements.</font></p>
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<li><p style="margin-bottom: 0cm"><font size="4" style="font-size: 14pt">unsigned
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getMessageLength(StatusType* status) - returns length of message
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buffer (use it to allocate memory for the buffer).</font></p>
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<li><p><font face="Liberation Serif, serif"><font size="4" style="font-size: 14pt">unsigned
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<li><p style="margin-bottom: 0cm"><font size="4" style="font-size: 14pt">unsigned
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getAlignment(StatusType* status) – returns alignment required for
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message buffer.</font></font></p>
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<li><p><font face="Liberation Serif, serif"><font size="4" style="font-size: 14pt">unsigned</font></font>
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<font face="Liberation Serif, serif"><font size="4" style="font-size: 14pt">getAlignedLength(StatusType*
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status) – returns length of message buffer taking into an account
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message buffer.</font></p>
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<li><p style="margin-bottom: 0cm"><font size="4" style="font-size: 14pt">unsigned
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getAlignedLength(StatusType* status) – returns length of message buffer taking into an account
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alignment requirements (use it to allocate memory for an array of
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buffers and navigate through that array).</font></font></p>
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buffers and navigate through that array).</font></p>
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</ol>
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<p style="margin-bottom: 0cm"><br/>
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@ -2426,18 +2424,18 @@ message or construct metadata from the beginning.</font></p>
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<li><p style="margin-bottom: 0cm"><font size="4" style="font-size: 14pt">IMessageMetadata*
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getMetadata(StatusType* status) – get <a href="#10. MessageMetadata">MessageMetadata</a>
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interface built by this builder.</font></p>
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<li><p style="margin-bottom: 0cm"><font face="Liberation Serif, serif"><font size="4" style="font-size: 14pt">void
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<li><p style="margin-bottom: 0cm"><font size="4" style="font-size: 14pt">void
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setField(StatusType* status, uint index, const string field) – set
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name of a field / column.</font></font></p>
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<li><p style="margin-bottom: 0cm"><font face="Liberation Serif, serif"><font size="4" style="font-size: 14pt">void
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name of a field / column.</font></p>
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<li><p style="margin-bottom: 0cm"><font size="4" style="font-size: 14pt">void
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setRelation(StatusType* status, uint index, const string relation) –
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set name of the relation from which the field was selected.</font></font></p>
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<li><p style="margin-bottom: 0cm"><font face="Liberation Serif, serif"><font size="4" style="font-size: 14pt">void
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set name of the relation from which the field was selected.</font></p>
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<li><p style="margin-bottom: 0cm"><font size="4" style="font-size: 14pt">void
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setOwner(StatusType* status, uint index, const string owner) – set
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name of that relation owner.</font></font></p>
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<li><p style="margin-bottom: 0cm"><font face="Liberation Serif, serif"><font size="4" style="font-size: 14pt">void
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name of that relation owner.</font></p>
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<li><p style="margin-bottom: 0cm"><font size="4" style="font-size: 14pt">void
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setAlias(StatusType* status, uint index, const string alias) – set
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alias name of the field in related statement.</font></font></p>
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alias name of the field in related statement.</font></p>
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</ol>
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<p style="margin-bottom: 0cm"><br/>
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@ -2639,6 +2637,11 @@ of isc_stmt_handle. This interface is returned by openCursor() call
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in <a href="#Attachment">IAttachment</a> or <a href="#Statement">IStatement</a>.
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All fetch calls except fetchNext() work only for bidirectional
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(opened with CURSOR_TYPE_SCROLLABLE flag) result set.</font></p>
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<p style="margin-bottom: 0cm"><font size="4" style="font-size: 14pt">Items
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accepted in getInfo() call:</font></p>
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<p style="margin-bottom: 0cm"><font size="4" style="font-size: 14pt">INF_RECORD_COUNT
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– number of records stored inside a scrollable cursor, or -1 for a uni-directional cursor.</font></p>
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<p style="margin-bottom: 0cm"><br/>
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<ol>
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<li><p style="margin-bottom: 0cm"><font size="4" style="font-size: 14pt">int
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fetchNext(StatusType* status, void* message) – fetch next record,
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@ -2673,6 +2676,10 @@ All fetch calls except fetchNext() work only for bidirectional
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<li><p style="margin-bottom: 0cm"><font size="4" style="font-size: 14pt">void
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close(StatusType* status) – close result set, releases interface
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on success.</font></p>
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<li><p style="margin-bottom: 0cm"><font size="4" style="font-size: 14pt">void
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getInfo(StatusType* status, unsigned itemsLength, const unsigned
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char* items, unsigned bufferLength, unsigned char* buffer) –
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retrieve information about result set.</font></p>
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</ol>
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<p style="margin-bottom: 0cm"><br/>
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@ -2733,7 +2740,7 @@ interface – replaces (partially) isc_stmt_handle.</font></p>
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returning multiple rows of data. Partial analogue of
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isc_dsql_execute2() - in and out XSLQDAs replaced with input and
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output messages with appropriate buffers.</font></p>
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<li><p style="margin-bottom: 0cm"><font face="Liberation Serif, serif"><font size="4" style="font-size: 14pt">IResultSet*
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<li><p style="margin-bottom: 0cm"><font size="4" style="font-size: 14pt">IResultSet*
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openCursor(StatusType* status, ITransaction* transaction,
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IMessageMetadata* inMetadata, void* inBuffer, IMessageMetadata*
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outMetadata, unsigned flags) – executes SQL statement potentially
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@ -2741,8 +2748,8 @@ interface – replaces (partially) isc_stmt_handle.</font></p>
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interface which should be used to fetch that data. Format of output
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data is defined by outMetadata parameter, leaving it NULL default
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format may be used. Parameter flags is needed to open bidirectional
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cursor setting it's value to Istatement::CURSOR_TYPE_SCROLLABLE.</font></font></p>
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<li><p style="margin-bottom: 0cm"><font face="Liberation Serif, serif"><font size="4" style="font-size: 14pt">IBatch*
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cursor setting it's value to Istatement::CURSOR_TYPE_SCROLLABLE.</font></p>
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<li><p style="margin-bottom: 0cm"><font size="4" style="font-size: 14pt">IBatch*
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createBatch(StatusType* status, IMessageMetadata* inMetadata, uint
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parLength, const uchar* par) – creates <a href="#Batch">Batch</a>
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interface to SQL statement with input parameters making it possible
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@ -2750,10 +2757,10 @@ interface – replaces (partially) isc_stmt_handle.</font></p>
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of input data is defined by inMetadata parameter, leaving it NULL
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makes batch use default format from this interface. Parameters block
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may be passed to createBatch() making it possible to adjust batch
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behavior.</font></font></p>
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<li><p style="margin-bottom: 0cm"><font face="Liberation Serif, serif"><font size="4" style="font-size: 14pt">void
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behavior.</font></p>
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<li><p style="margin-bottom: 0cm"><font size="4" style="font-size: 14pt">void
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setCursorName(StatusType* status, const char* name) – replaces
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isc_dsql_set_cursor_name(). </font></font>
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isc_dsql_set_cursor_name().</font>
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</p>
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<li><p style="margin-bottom: 0cm"><font size="4" style="font-size: 14pt">void
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free(StatusType* status) – free statement, releases interface on
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@ -21,10 +21,12 @@
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*/
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#include "firebird.h"
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#include "../common/classes/ClumpletWriter.h"
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#include "../jrd/tra_proto.h"
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#include "../jrd/trace/TraceManager.h"
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#include "../jrd/trace/TraceDSQLHelpers.h"
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#include "../dsql/dsql_proto.h"
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#include "../dsql/DsqlCursor.h"
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using namespace Firebird;
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@ -210,6 +212,81 @@ int DsqlCursor::fetchRelative(thread_db* tdbb, UCHAR* buffer, SLONG offset)
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return fetchFromCache(tdbb, buffer, position);
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}
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void DsqlCursor::getInfo(thread_db* tdbb,
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unsigned int itemsLength, const unsigned char* items,
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unsigned int bufferLength, unsigned char* buffer)
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{
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if (bufferLength < 7) // isc_info_error + 2-byte length + 4-byte error code
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{
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if (bufferLength)
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*buffer = isc_info_truncated;
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return;
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}
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const bool isScrollable = (m_flags & IStatement::CURSOR_TYPE_SCROLLABLE);
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ClumpletWriter response(ClumpletReader::InfoResponse, bufferLength - 1); // isc_info_end
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ISC_STATUS errorCode = 0;
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bool needLength = false, completed = false;
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try
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{
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ClumpletReader infoItems(ClumpletReader::InfoItems, items, itemsLength);
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for (infoItems.rewind(); !errorCode && !infoItems.isEof(); infoItems.moveNext())
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{
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const auto tag = infoItems.getClumpTag();
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switch (tag)
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{
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case isc_info_end:
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break;
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case isc_info_length:
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needLength = true;
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break;
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case IResultSet::INF_RECORD_COUNT:
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if (isScrollable && !m_eof)
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{
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cacheInput(tdbb);
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fb_assert(m_eof);
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}
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response.insertInt(tag, isScrollable ? m_cachedCount : -1);
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break;
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default:
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errorCode = isc_infunk;
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break;
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}
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}
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completed = infoItems.isEof();
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if (needLength && completed)
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{
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response.rewind();
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response.insertInt(isc_info_length, response.getBufferLength() + 1); // isc_info_end
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}
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}
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catch (const Exception&)
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{
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if (!response.hasOverflow())
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throw;
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}
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if (errorCode)
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{
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response.clear();
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response.insertInt(isc_info_error, (SLONG) errorCode);
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}
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fb_assert(response.getBufferLength() <= bufferLength);
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memcpy(buffer, response.getBuffer(), response.getBufferLength());
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buffer += response.getBufferLength();
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*buffer = completed ? isc_info_end : isc_info_truncated;
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}
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int DsqlCursor::fetchFromCache(thread_db* tdbb, UCHAR* buffer, FB_UINT64 position)
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{
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if (position >= m_cachedCount)
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@ -61,6 +61,10 @@ public:
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return (m_state == EOS);
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}
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void getInfo(thread_db* tdbb,
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unsigned int itemsLength, const unsigned char* items,
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unsigned int bufferLength, unsigned char* buffer);
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private:
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int fetchFromCache(thread_db* tdbb, UCHAR* buffer, FB_UINT64 position);
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bool cacheInput(thread_db* tdbb, FB_UINT64 position = MAX_UINT64);
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@ -433,6 +433,9 @@ version: // 3.0 => 4.0
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interface ResultSet : ReferenceCounted
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{
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// Info items
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const uchar INF_RECORD_COUNT = 10; // Number of records in the result set
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[notImplemented(Status::RESULT_ERROR)] int fetchNext(Status status, void* message);
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[notImplemented(Status::RESULT_ERROR)] int fetchPrior(Status status, void* message);
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[notImplemented(Status::RESULT_ERROR)] int fetchFirst(Status status, void* message);
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@ -452,6 +455,11 @@ interface ResultSet : ReferenceCounted
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version: // 3.0.7 => 3.0.8, 4.0.0 => 4.0.1
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[notImplementedAction if ::FB_UsedInYValve then defaultAction else call deprecatedClose(status) endif]
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void close(Status status);
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version: // 4.0.1 => 5.0
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void getInfo(Status status,
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uint itemsLength, const uchar* items,
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uint bufferLength, uchar* buffer);
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}
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interface Statement : ReferenceCounted
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@ -1668,6 +1668,7 @@ namespace Firebird
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void (CLOOP_CARG *deprecatedClose)(IResultSet* self, IStatus* status) throw();
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void (CLOOP_CARG *setDelayedOutputFormat)(IResultSet* self, IStatus* status, IMessageMetadata* format) throw();
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void (CLOOP_CARG *close)(IResultSet* self, IStatus* status) throw();
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void (CLOOP_CARG *getInfo)(IResultSet* self, IStatus* status, unsigned itemsLength, const unsigned char* items, unsigned bufferLength, unsigned char* buffer) throw();
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};
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protected:
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@ -1681,7 +1682,9 @@ namespace Firebird
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}
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public:
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static const unsigned VERSION = 4;
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static const unsigned VERSION = 5;
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static const unsigned char INF_RECORD_COUNT = 10;
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template <typename StatusType> int fetchNext(StatusType* status, void* message)
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{
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@ -1786,6 +1789,19 @@ namespace Firebird
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static_cast<VTable*>(this->cloopVTable)->close(this, status);
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StatusType::checkException(status);
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}
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template <typename StatusType> void getInfo(StatusType* status, unsigned itemsLength, const unsigned char* items, unsigned bufferLength, unsigned char* buffer)
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{
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if (cloopVTable->version < 5)
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{
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StatusType::setVersionError(status, "IResultSet", cloopVTable->version, 5);
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StatusType::checkException(status);
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return;
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}
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StatusType::clearException(status);
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static_cast<VTable*>(this->cloopVTable)->getInfo(this, status, itemsLength, items, bufferLength, buffer);
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StatusType::checkException(status);
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}
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};
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class IStatement : public IReferenceCounted
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@ -9620,6 +9636,7 @@ namespace Firebird
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this->deprecatedClose = &Name::cloopdeprecatedCloseDispatcher;
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this->setDelayedOutputFormat = &Name::cloopsetDelayedOutputFormatDispatcher;
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this->close = &Name::cloopcloseDispatcher;
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this->getInfo = &Name::cloopgetInfoDispatcher;
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}
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} vTable;
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@ -9803,6 +9820,20 @@ namespace Firebird
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}
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}
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static void CLOOP_CARG cloopgetInfoDispatcher(IResultSet* self, IStatus* status, unsigned itemsLength, const unsigned char* items, unsigned bufferLength, unsigned char* buffer) throw()
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{
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StatusType status2(status);
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try
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{
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static_cast<Name*>(self)->Name::getInfo(&status2, itemsLength, items, bufferLength, buffer);
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}
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catch (...)
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{
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StatusType::catchException(&status2);
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}
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}
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static void CLOOP_CARG cloopaddRefDispatcher(IReferenceCounted* self) throw()
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{
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try
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@ -9854,6 +9885,7 @@ namespace Firebird
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virtual void deprecatedClose(StatusType* status) = 0;
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virtual void setDelayedOutputFormat(StatusType* status, IMessageMetadata* format) = 0;
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virtual void close(StatusType* status) = 0;
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virtual void getInfo(StatusType* status, unsigned itemsLength, const unsigned char* items, unsigned bufferLength, unsigned char* buffer) = 0;
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};
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template <typename Name, typename StatusType, typename Base>
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@ -339,6 +339,7 @@ type
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IResultSet_deprecatedClosePtr = procedure(this: IResultSet; status: IStatus); cdecl;
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IResultSet_setDelayedOutputFormatPtr = procedure(this: IResultSet; status: IStatus; format: IMessageMetadata); cdecl;
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IResultSet_closePtr = procedure(this: IResultSet; status: IStatus); cdecl;
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IResultSet_getInfoPtr = procedure(this: IResultSet; status: IStatus; itemsLength: Cardinal; items: BytePtr; bufferLength: Cardinal; buffer: BytePtr); cdecl;
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IStatement_getInfoPtr = procedure(this: IStatement; status: IStatus; itemsLength: Cardinal; items: BytePtr; bufferLength: Cardinal; buffer: BytePtr); cdecl;
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IStatement_getTypePtr = function(this: IStatement; status: IStatus): Cardinal; cdecl;
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IStatement_getPlanPtr = function(this: IStatement; status: IStatus; detailed: Boolean): PAnsiChar; cdecl;
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@ -1425,10 +1426,12 @@ type
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deprecatedClose: IResultSet_deprecatedClosePtr;
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setDelayedOutputFormat: IResultSet_setDelayedOutputFormatPtr;
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close: IResultSet_closePtr;
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getInfo: IResultSet_getInfoPtr;
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end;
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IResultSet = class(IReferenceCounted)
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const VERSION = 4;
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const VERSION = 5;
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const INF_RECORD_COUNT = Byte(10);
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function fetchNext(status: IStatus; message: Pointer): Integer;
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function fetchPrior(status: IStatus; message: Pointer): Integer;
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@ -1442,6 +1445,7 @@ type
|
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procedure deprecatedClose(status: IStatus);
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procedure setDelayedOutputFormat(status: IStatus; format: IMessageMetadata);
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procedure close(status: IStatus);
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procedure getInfo(status: IStatus; itemsLength: Cardinal; items: BytePtr; bufferLength: Cardinal; buffer: BytePtr);
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end;
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IResultSetImpl = class(IResultSet)
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@ -1461,6 +1465,7 @@ type
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procedure deprecatedClose(status: IStatus); virtual; abstract;
|
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procedure setDelayedOutputFormat(status: IStatus; format: IMessageMetadata); virtual; abstract;
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||||
procedure close(status: IStatus); virtual; abstract;
|
||||
procedure getInfo(status: IStatus; itemsLength: Cardinal; items: BytePtr; bufferLength: Cardinal; buffer: BytePtr); virtual; abstract;
|
||||
end;
|
||||
|
||||
StatementVTable = class(ReferenceCountedVTable)
|
||||
@ -6501,6 +6506,17 @@ begin
|
||||
FbException.checkException(status);
|
||||
end;
|
||||
|
||||
procedure IResultSet.getInfo(status: IStatus; itemsLength: Cardinal; items: BytePtr; bufferLength: Cardinal; buffer: BytePtr);
|
||||
begin
|
||||
if (vTable.version < 5) then begin
|
||||
FbException.setVersionError(status, 'IResultSet', vTable.version, 5);
|
||||
end
|
||||
else begin
|
||||
ResultSetVTable(vTable).getInfo(Self, status, itemsLength, items, bufferLength, buffer);
|
||||
end;
|
||||
FbException.checkException(status);
|
||||
end;
|
||||
|
||||
procedure IStatement.getInfo(status: IStatus; itemsLength: Cardinal; items: BytePtr; bufferLength: Cardinal; buffer: BytePtr);
|
||||
begin
|
||||
StatementVTable(vTable).getInfo(Self, status, itemsLength, items, bufferLength, buffer);
|
||||
@ -10435,6 +10451,15 @@ begin
|
||||
end
|
||||
end;
|
||||
|
||||
procedure IResultSetImpl_getInfoDispatcher(this: IResultSet; status: IStatus; itemsLength: Cardinal; items: BytePtr; bufferLength: Cardinal; buffer: BytePtr); cdecl;
|
||||
begin
|
||||
try
|
||||
IResultSetImpl(this).getInfo(status, itemsLength, items, bufferLength, buffer);
|
||||
except
|
||||
on e: Exception do FbException.catchException(status, e);
|
||||
end
|
||||
end;
|
||||
|
||||
var
|
||||
IResultSetImpl_vTable: ResultSetVTable;
|
||||
|
||||
@ -15620,7 +15645,7 @@ initialization
|
||||
IMetadataBuilderImpl_vTable.setAlias := @IMetadataBuilderImpl_setAliasDispatcher;
|
||||
|
||||
IResultSetImpl_vTable := ResultSetVTable.create;
|
||||
IResultSetImpl_vTable.version := 4;
|
||||
IResultSetImpl_vTable.version := 5;
|
||||
IResultSetImpl_vTable.addRef := @IResultSetImpl_addRefDispatcher;
|
||||
IResultSetImpl_vTable.release := @IResultSetImpl_releaseDispatcher;
|
||||
IResultSetImpl_vTable.fetchNext := @IResultSetImpl_fetchNextDispatcher;
|
||||
@ -15635,6 +15660,7 @@ initialization
|
||||
IResultSetImpl_vTable.deprecatedClose := @IResultSetImpl_deprecatedCloseDispatcher;
|
||||
IResultSetImpl_vTable.setDelayedOutputFormat := @IResultSetImpl_setDelayedOutputFormatDispatcher;
|
||||
IResultSetImpl_vTable.close := @IResultSetImpl_closeDispatcher;
|
||||
IResultSetImpl_vTable.getInfo := @IResultSetImpl_getInfoDispatcher;
|
||||
|
||||
IStatementImpl_vTable := StatementVTable.create;
|
||||
IStatementImpl_vTable.version := 5;
|
||||
|
||||
@ -169,6 +169,9 @@ public:
|
||||
void close(Firebird::CheckStatusWrapper* status) override;
|
||||
void deprecatedClose(Firebird::CheckStatusWrapper* status) override;
|
||||
void setDelayedOutputFormat(Firebird::CheckStatusWrapper* status, Firebird::IMessageMetadata* format) override;
|
||||
void getInfo(Firebird::CheckStatusWrapper* status,
|
||||
unsigned int itemsLength, const unsigned char* items,
|
||||
unsigned int bufferLength, unsigned char* buffer) override;
|
||||
|
||||
public:
|
||||
JResultSet(DsqlCursor* handle, JStatement* aStatement);
|
||||
|
||||
@ -5471,6 +5471,34 @@ IMessageMetadata* JResultSet::getMetadata(CheckStatusWrapper* user_status)
|
||||
}
|
||||
|
||||
|
||||
void JResultSet::getInfo(CheckStatusWrapper* user_status,
|
||||
unsigned int itemsLength, const unsigned char* items,
|
||||
unsigned int bufferLength, unsigned char* buffer)
|
||||
{
|
||||
try
|
||||
{
|
||||
EngineContextHolder tdbb(user_status, this, FB_FUNCTION);
|
||||
check_database(tdbb);
|
||||
|
||||
try
|
||||
{
|
||||
cursor->getInfo(tdbb, itemsLength, items, bufferLength, buffer);
|
||||
}
|
||||
catch (const Exception& ex)
|
||||
{
|
||||
transliterateException(tdbb, ex, user_status, "JResultSet::getInfo");
|
||||
return;
|
||||
}
|
||||
}
|
||||
catch (const Exception& ex)
|
||||
{
|
||||
ex.stuffException(user_status);
|
||||
return;
|
||||
}
|
||||
|
||||
successful_completion(user_status);
|
||||
}
|
||||
|
||||
void JResultSet::deprecatedClose(CheckStatusWrapper* user_status)
|
||||
{
|
||||
freeEngineData(user_status);
|
||||
|
||||
@ -292,6 +292,9 @@ public:
|
||||
void close(CheckStatusWrapper* status) override;
|
||||
void deprecatedClose(CheckStatusWrapper* status) override;
|
||||
void setDelayedOutputFormat(CheckStatusWrapper* status, IMessageMetadata* format) override;
|
||||
void getInfo(CheckStatusWrapper* status,
|
||||
unsigned int itemsLength, const unsigned char* items,
|
||||
unsigned int bufferLength, unsigned char* buffer) override;
|
||||
|
||||
ResultSet(Statement* s, IMessageMetadata* outFmt, unsigned f)
|
||||
: stmt(s), flags(f), tmpStatement(false), delayedFormat(outFmt == DELAYED_OUT_FORMAT)
|
||||
@ -5062,6 +5065,38 @@ IMessageMetadata* ResultSet::getMetadata(CheckStatusWrapper* status)
|
||||
return outputFormat;
|
||||
}
|
||||
|
||||
void ResultSet::getInfo(CheckStatusWrapper* status,
|
||||
unsigned int itemsLength, const unsigned char* items,
|
||||
unsigned int bufferLength, unsigned char* buffer)
|
||||
{
|
||||
try
|
||||
{
|
||||
reset(status);
|
||||
|
||||
// Check and validate handles, etc.
|
||||
|
||||
if (!stmt)
|
||||
Arg::Gds(isc_dsql_cursor_err).raise();
|
||||
|
||||
const auto statement = stmt->getStatement();
|
||||
CHECK_HANDLE(statement, isc_bad_req_handle);
|
||||
|
||||
const auto rdb = statement->rsr_rdb;
|
||||
const auto port = rdb->rdb_port;
|
||||
RefMutexGuard portGuard(*port->port_sync, FB_FUNCTION);
|
||||
|
||||
if (port->port_protocol < PROTOCOL_FETCH_SCROLL)
|
||||
unsupported();
|
||||
|
||||
info(status, rdb, op_info_cursor, statement->rsr_id, 0,
|
||||
itemsLength, items, 0, 0, bufferLength, buffer);
|
||||
}
|
||||
catch (const Exception& ex)
|
||||
{
|
||||
ex.stuffException(status);
|
||||
}
|
||||
}
|
||||
|
||||
void ResultSet::freeClientData(CheckStatusWrapper* status, bool force)
|
||||
{
|
||||
/**************************************
|
||||
|
||||
@ -507,6 +507,7 @@ bool_t xdr_protocol(RemoteXdr* xdrs, PACKET* p)
|
||||
case op_service_info:
|
||||
case op_info_sql:
|
||||
case op_info_batch:
|
||||
case op_info_cursor:
|
||||
info = &p->p_info;
|
||||
MAP(xdr_short, reinterpret_cast<SSHORT&>(info->p_info_object));
|
||||
MAP(xdr_short, reinterpret_cast<SSHORT&>(info->p_info_incarnation));
|
||||
|
||||
@ -316,6 +316,7 @@ enum P_OP
|
||||
op_info_batch = 111,
|
||||
|
||||
op_fetch_scroll = 112,
|
||||
op_info_cursor = 113,
|
||||
|
||||
op_max
|
||||
};
|
||||
|
||||
@ -4594,7 +4594,7 @@ void rem_port::info(P_OP op, P_INFO* stuff, PACKET* sendL)
|
||||
|
||||
case op_info_sql:
|
||||
getHandle(statement, stuff->p_info_object);
|
||||
statement->checkIface(isc_info_unprepared_stmt);
|
||||
statement->checkIface();
|
||||
|
||||
statement->rsr_iface->getInfo(&status_vector, info_len, info_buffer,
|
||||
buffer_length, buffer);
|
||||
@ -4608,6 +4608,18 @@ void rem_port::info(P_OP op, P_INFO* stuff, PACKET* sendL)
|
||||
statement->rsr_batch->getInfo(&status_vector, info_len, info_buffer,
|
||||
buffer_length, buffer);
|
||||
break;
|
||||
|
||||
case op_info_cursor:
|
||||
getHandle(statement, stuff->p_info_object);
|
||||
statement->checkIface();
|
||||
statement->checkCursor();
|
||||
|
||||
statement->rsr_cursor->getInfo(&status_vector, info_len, info_buffer,
|
||||
buffer_length, buffer);
|
||||
break;
|
||||
|
||||
default:
|
||||
fb_assert(false);
|
||||
}
|
||||
|
||||
// Send a response that includes the segment.
|
||||
@ -5089,6 +5101,7 @@ static bool process_packet(rem_port* port, PACKET* sendL, PACKET* receive, rem_p
|
||||
case op_service_info:
|
||||
case op_info_sql:
|
||||
case op_info_batch:
|
||||
case op_info_cursor:
|
||||
port->info(op, &receive->p_info, sendL);
|
||||
break;
|
||||
|
||||
|
||||
@ -366,6 +366,9 @@ public:
|
||||
void close(Firebird::CheckStatusWrapper* status);
|
||||
void deprecatedClose(Firebird::CheckStatusWrapper* status);
|
||||
void setDelayedOutputFormat(Firebird::CheckStatusWrapper* status, Firebird::IMessageMetadata* format);
|
||||
void getInfo(Firebird::CheckStatusWrapper* status,
|
||||
unsigned int itemsLength, const unsigned char* items,
|
||||
unsigned int bufferLength, unsigned char* buffer);
|
||||
|
||||
public:
|
||||
AtomicAttPtr attachment;
|
||||
|
||||
@ -4884,6 +4884,21 @@ IMessageMetadata* YResultSet::getMetadata(CheckStatusWrapper* status)
|
||||
return NULL;
|
||||
}
|
||||
|
||||
void YResultSet::getInfo(CheckStatusWrapper* status,
|
||||
unsigned int itemsLength, const unsigned char* items,
|
||||
unsigned int bufferLength, unsigned char* buffer)
|
||||
{
|
||||
try
|
||||
{
|
||||
YEntry<YResultSet> entry(status, this);
|
||||
|
||||
entry.next()->getInfo(status, itemsLength, items, bufferLength, buffer);
|
||||
}
|
||||
catch (const Exception& e)
|
||||
{
|
||||
e.stuffException(status);
|
||||
}
|
||||
}
|
||||
|
||||
void YResultSet::close(CheckStatusWrapper* status)
|
||||
{
|
||||
|
||||
Loading…
Reference in New Issue
Block a user