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backup.epp
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backup.epp
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/*
* PROGRAM: JRD Backup and Restore Program
* MODULE: backup.epp
* DESCRIPTION: Backup routine
*
* The contents of this file are subject to the Interbase Public
* License Version 1.0 (the "License"); you may not use this file
* except in compliance with the License. You may obtain a copy
* of the License at http://www.Inprise.com/IPL.html
*
* Software distributed under the License is distributed on an
* "AS IS" basis, WITHOUT WARRANTY OF ANY KIND, either express
* or implied. See the License for the specific language governing
* rights and limitations under the License.
*
* The Original Code was created by Inprise Corporation
* and its predecessors. Portions created by Inprise Corporation are
* Copyright (C) Inprise Corporation.
*
* All Rights Reserved.
* Contributor(s): ______________________________________.
*
* Toni Martir: Added verbose backup records as BACKUP_VERBOSE_INTERVAL
* 2001.07.06 Sean Leyne - Code Cleanup, removed "#ifdef READONLY_DATABASE"
* conditionals, as the engine now fully supports
* readonly databases.
* 2001.11.20 Claudio Valderrama: fix problem with embedded blanks in
* generators and use symbol_length effective length calculation from put_text.
* This minimizes code redundancy and fixes SF Bug #483276.
* 2001.12.15 Claudio Valderrama: copy should run through symbol_length instead
* of using just another length calculation algorithm. Callers of put_text, copy
* and symbol_length (if used directly) should use sizeof. Changed all callers
* and sizeof() works because the strings are local to the functions. This
* eliminates the problem with harcoded limits in each call.
* 2002.10.29 Mike Nordell: UINT64 backup message.
* 2003.08.17 Claudio Valderrama: Fix SF Bug #750659.
* 2005.04.29 Claudio Valderrama: Moved symbol_length to misc.cpp.
*/
#include "firebird.h"
#include <stdio.h>
#include <memory.h>
#include <string.h>
#include "../burp/burp.h"
#include "../jrd/ods.h"
#include "../jrd/align.h"
#include "../common/gdsassert.h"
#include "../jrd/constants.h"
#include "../common/stuff.h"
#include "../burp/backu_proto.h"
#include "../burp/burp_proto.h"
#include "../burp/canon_proto.h"
#include "../burp/mvol_proto.h"
#include "../remote/protocol.h"
#ifdef DEBUG
#include "../common/prett_proto.h"
#endif
#include "../common/classes/BlobWrapper.h"
#include "../common/classes/MsgPrint.h"
#include "../burp/OdsDetection.h"
#include "../burp/BurpTasks.h"
using MsgFormat::SafeArg;
using namespace Firebird;
using namespace Burp;
// For service APIs the follow DB handle is a value stored
// in thread data. This is also done for other statics generated by
// GPRE. This is to avoid multiple threading problems with module
// level statics.
#define DB tdgbl->db_handle
#define fbTrans tdgbl->tr_handle
#define gds_trans tdgbl->tr_handle
#define fbStatus (&tdgbl->status_vector)
#define isc_status (&tdgbl->status_vector)
#define gds_status (&tdgbl->status_vector)
// unused
#define fbProvider
#define fbStatus2
DATABASE DB = STATIC FILENAME "yachts.lnk" RUNTIME * dbb_file;
namespace // unnamed, private
{
#define PUT_MESSAGE(attrib, attrib2, message) put_message((attrib), (attrib2), (message), sizeof(message))
#define PUT_TEXT(attribute, text) put_text ((attribute), (text), sizeof(text))
#define COPY(source, target) copy ((source), (target), sizeof(target))
inline void put(BurpGlobals* tdgbl, const UCHAR c)
{
tdgbl->put(c);
}
inline void put(BurpGlobals* tdgbl, const att_type c)
{
put(tdgbl, UCHAR(c));
}
inline const UCHAR* put_block(BurpGlobals* tdgbl, const UCHAR* p, ULONG n)
{
return MVOL_write_block (tdgbl, p, n);
}
void compress(const UCHAR*, ULONG);
int copy(const TEXT*, TEXT*, ULONG);
burp_fld* get_fields(burp_rel*);
SINT64 get_gen_id(const TEXT*, SSHORT);
void get_ranges(burp_fld*);
void put_array(burp_fld*, burp_rel*, ISC_QUAD*);
void put_asciz(const att_type, const TEXT*);
void put_blob(burp_fld*, ISC_QUAD&);
bool put_blr_blob(att_type, ISC_QUAD&);
void put_data(burp_rel*, ReadRelationReq*);
void put_index(burp_rel*);
int put_message(att_type, att_type, const TEXT*, const ULONG);
void put_int32(att_type, SLONG);
void put_int64(att_type attribute, SINT64 value);
void put_boolean(att_type, FB_BOOLEAN value);
void put_relation(burp_rel*);
bool put_source_blob(att_type, att_type, ISC_QUAD&);
int put_text(att_type, const TEXT*, SSHORT);
void write_character_sets();
void write_check_constraints();
void write_collations();
void write_database(const TEXT*);
void write_exceptions();
void write_field_dimensions();
void write_filters();
void write_functions();
void write_function_args(const GDS_NAME, GDS_NAME);
void write_global_fields();
void write_generators();
void write_sql_roles();
void write_mapping();
void write_db_creators();
void write_packages();
void write_procedures();
void write_procedure_prms(const GDS_NAME, const GDS_NAME);
void write_publications();
void write_pub_tables();
void write_ref_constraints();
void write_rel_constraints();
void write_relations();
void write_secclasses();
void write_shadow_files();
void write_triggers();
void write_trigger_messages();
void write_types();
void write_user_privileges();
void general_on_error();
#ifdef DEBUG
UCHAR debug_on = 0; // able to turn this on in debug mode
#endif
const UCHAR blob_items[] =
{
isc_info_blob_max_segment,
isc_info_blob_num_segments,
isc_info_blob_type,
isc_info_blob_total_length
};
const UCHAR blr_items[] =
{
isc_info_blob_max_segment,
isc_info_blob_total_length
};
const UCHAR source_items[] =
{
isc_info_blob_max_segment,
isc_info_blob_total_length,
isc_info_blob_num_segments
};
const UCHAR db_info_items[] =
{
isc_info_db_sql_dialect,
isc_info_page_size,
isc_info_sweep_interval,
isc_info_forced_writes,
isc_info_no_reserve,
isc_info_set_page_buffers,
isc_info_db_read_only,
fb_info_replica_mode,
isc_info_end
};
const UCHAR limbo_tpb[] =
{
isc_tpb_version1,
isc_tpb_ignore_limbo
};
const UCHAR limbo_nau_tpb[] =
{
isc_tpb_version1,
isc_tpb_ignore_limbo,
isc_tpb_no_auto_undo
};
} // namespace
int BACKUP_backup(const TEXT* dbb_file, const TEXT* file_name)
{
/**************************************
*
* B A C K U P _ b a c k u p
*
**************************************
*
* Functional description
* Backup a database.
*
**************************************/
FbLocalStatus status_vector;
BurpGlobals* tdgbl = BurpGlobals::getSpecific();
tdgbl->gbl_database_file_name = dbb_file;
gds_trans = 0;
BURP_verbose(130);
// msg 130 starting transaction
if (tdgbl->gbl_sw_ignore_limbo)
{
gds_trans = DB->startTransaction(&status_vector, sizeof(limbo_nau_tpb), limbo_nau_tpb);
if (status_vector->getState() & Firebird::IStatus::STATE_ERRORS)
{
gds_trans = DB->startTransaction(&status_vector, sizeof(limbo_tpb), limbo_tpb);
}
}
else
{
EXEC SQL SET TRANSACTION NO_AUTO_UNDO;
if (isc_status->getState() & Firebird::IStatus::STATE_ERRORS)
EXEC SQL SET TRANSACTION;
}
if (!gds_trans)
{
EXEC SQL SET TRANSACTION NAME gds_trans NO_AUTO_UNDO;
if (isc_status->getState() & Firebird::IStatus::STATE_ERRORS)
EXEC SQL SET TRANSACTION NAME gds_trans;
}
// get shared snapshot number if asked for parallel backup
tdgbl->tr_snapshot = 0;
if (gds_trans && tdgbl->gbl_sw_par_workers > 1)
{
UCHAR in_buf[] = {fb_info_tra_snapshot_number, isc_info_end};
UCHAR out_buf[16] = {0};
gds_trans->getInfo(fbStatus, sizeof(in_buf), in_buf, sizeof(out_buf), out_buf);
if (fbStatus->isEmpty())
{
UCHAR* p = out_buf, *e = out_buf + sizeof(out_buf);
while (p < e)
{
SSHORT len;
switch (*p++)
{
case isc_info_error:
case isc_info_end:
p = e;
break;
case fb_info_tra_snapshot_number:
len = isc_portable_integer(p, 2);
p += 2;
tdgbl->tr_snapshot = isc_portable_integer(p, len);
p += len;
break;
}
}
}
if (tdgbl->tr_snapshot == 0)
tdgbl->gbl_sw_par_workers = 1;
}
// detect if MAKE_DBKEY is supported and decide kind of read relation query
if (tdgbl->gbl_sw_par_workers > 1)
{
const char* sql = "SELECT MAKE_DBKEY(0, 0) FROM RDB$DATABASE";
IStatement* stmt = DB->prepare(fbStatus, gds_trans, 0, sql, 3, 0);
if (fbStatus->getState() & IStatus::RESULT_ERROR)
{
// BURP_print_status(false, isc_status);
tdgbl->gbl_sw_par_workers = 1;
}
if (stmt)
stmt->free(fbStatus);
}
// decide what type of database we've got
detectRuntimeODS();
if (tdgbl->runtimeODS < DB_VERSION_OLDEST_SUPPORTED)
{
BURP_error(348, true, SafeArg() << tdgbl->runtimeODS);
// msg 348 database format @1 is too old to backup
}
// Write burp record first with other valuable information
// In case of split operation, write a 'split' header first to all the files
if (tdgbl->action->act_action == ACT_backup_split)
{
for (burp_fil* fil = tdgbl->gbl_sw_files; fil; fil = fil->fil_next)
{
tdgbl->action->act_file = fil;
if (!MVOL_split_hdr_write())
{
BURP_error(269, true, tdgbl->action->act_file->fil_name.c_str());
// msg 269 can't write a header record to file %s
}
}
tdgbl->action->act_file = tdgbl->gbl_sw_files;
}
MVOL_init_write(file_name);
// Write database record
write_database(dbb_file);
// Write global fields
BURP_verbose(150);
// msg 150 writing global fields
write_global_fields();
write_field_dimensions();
BURP_verbose(162);
// msg 162 writing shadow files
write_shadow_files();
// Write Character Sets
BURP_verbose(msgVerbose_write_charsets);
write_character_sets();
// Write Collations
BURP_verbose(msgVerbose_write_collations);
write_collations();
// Write relations
BURP_verbose(154);
// msg 154 writing tables
write_relations();
// Write types
BURP_verbose(161);
// msg 161 writing types
write_types();
// Write filters
BURP_verbose(146);
// msg 146 writing filters
write_filters();
// Write generators
BURP_verbose(164);
// msg 164 writing id generators
write_generators();
// Write exceptions
BURP_verbose(197);
// msg 197 writing exceptions
write_exceptions();
// Write functions
BURP_verbose(148);
// msg 148 writing functions
write_functions();
// Write procedures
BURP_verbose(192);
// msg 192 writing stored procedures
write_procedures();
if (tdgbl->runtimeODS >= DB_VERSION_DDL12)
{
// Write packages
BURP_verbose(336); // msg 336 writing packages
write_packages();
}
// Now go back and write all data
{
Coordinator coord(getDefaultMemoryPool());
BackupRelationTask task(tdgbl);
for (burp_rel* relation = tdgbl->relations; relation; relation = relation->rel_next)
{
put(tdgbl, (UCHAR) rec_relation_data);
PUT_TEXT(att_relation_name, relation->rel_name);
put(tdgbl, att_end);
if (!(relation->rel_flags & REL_view) && !(relation->rel_flags & REL_external))
{
put_index(relation);
if (!(tdgbl->gbl_sw_meta || tdgbl->skipRelation(relation->rel_name)))
{
task.SetRelation(relation);
coord.runSync(&task);
if (!task.getResult(NULL))
BURP_exit_local(FINI_ERROR, tdgbl);
}
}
put(tdgbl, (UCHAR) rec_relation_end);
}
}
// now for the new triggers in rdb$triggers
BURP_verbose(159);
// msg 159 writing triggers
write_triggers();
BURP_verbose(158);
// msg 158 writing trigger messages
write_trigger_messages();
write_user_privileges();
// Last, but not least, go back and add any access control lists
BURP_verbose(347); // msg 347 writing security classes
write_secclasses();
// Write relation constraints
BURP_verbose(206);
// msg 206 writing relation constraints
write_rel_constraints();
// Write referential constraints
BURP_verbose(209);
// msg 209 writing referential constraints
write_ref_constraints();
// Write check constraints
BURP_verbose(210);
// msg 210 writing check constraints
write_check_constraints();
if (tdgbl->runtimeODS >= DB_VERSION_DDL9)
{
// Write SQL roles
BURP_verbose(248);
// msg 248 writing SQL roles
write_sql_roles();
}
if (tdgbl->runtimeODS >= DB_VERSION_DDL11)
{
// Write names mapping
BURP_verbose(296);
// msg 296 writing mapping
write_mapping();
}
if (tdgbl->runtimeODS >= DB_VERSION_DDL12)
{
// Write database creators
write_db_creators();
}
if (tdgbl->runtimeODS >= DB_VERSION_DDL13)
{
// Write publications
BURP_verbose(396); // msg 396 writing publications
write_publications();
write_pub_tables();
}
// Finish up
put(tdgbl, (UCHAR) rec_end);
FB_UINT64 cumul_count = MVOL_fini_write();
tdgbl->action->act_action = ACT_backup_fini;
BURP_verbose(176, SafeArg() << cumul_count);
// msg 176 closing file, committing, and finishing. %ld bytes written
COMMIT;
ON_ERROR
general_on_error();
END_ERROR;
if (gds_trans)
COMMIT gds_trans;
ON_ERROR
general_on_error();
END_ERROR;
if (tdgbl->gbl_stat_flags)
BURP_verbose(369);
// msg 369 total statistics
FINISH
ON_ERROR
general_on_error();
END_ERROR;
return FINI_OK;
}
namespace // unnamed, private
{
void compress(const UCHAR* data, ULONG length)
{
/**************************************
*
* c o m p r e s s
*
**************************************
*
* Functional description
* Write out data in compressed form.
*
**************************************/
BurpGlobals* tdgbl = BurpGlobals::getSpecific();
const UCHAR* p = data;
const UCHAR* end = p + length;
const UCHAR* q = NULL;
while (p < end)
{
for (q = p + 2; q < end && (q[-2] != q[-1] || q[-1] != q[0]); q++)
;
ULONG run = (q < end) ? q - p - 2 : end - p;
if (run)
{
for (; run > 127; run -= 127)
{
USHORT len = 127;
put(tdgbl, (UCHAR) len);
p = put_block(tdgbl, p, len);
}
if (run)
{
put(tdgbl, (UCHAR) run);
p = put_block(tdgbl, p, run);
}
}
for (q = p; q < end && *q == *p; q++)
;
if ((run = q - p) != 0)
{
for (; run > 127; run -= 127)
{
put(tdgbl, (UCHAR) (-127));
put(tdgbl, (UCHAR) (*p));
}
if (run)
{
put(tdgbl, (UCHAR) (-run));
put(tdgbl, (UCHAR) (*p));
}
p = q;
}
}
}
int copy( const TEXT* from, TEXT* to, ULONG size_len)
{
/**************************************
*
* c o p y
*
**************************************
*
* Functional description
* Copy a blank or null terminated string into a null terminated
* string. It assumes there's enough room in the target.
*
**************************************/
const ULONG len = (ULONG) MISC_symbol_length(from, size_len);
memcpy(to, from, len);
to[len] = '\0';
return (int) len;
}
void general_on_error()
{
/**************************************
*
* g e n e r a l _ o n _ e r r o r
*
**************************************
*
* Functional description
* Handle any general ON_ERROR clause during backup.
*
**************************************/
BurpGlobals* tdgbl = BurpGlobals::getSpecific();
BURP_print_status(true, isc_status);
BURP_abort();
}
burp_fld* get_fields( burp_rel* relation)
{
/**************************************
*
* g e t _ f i e l d s
*
**************************************
*
* Functional description
* Get fields for a relation. Test
* capabilities and get system specific
*
**************************************/
burp_fld* field;
ISC_QUAD* blob_id;
BurpGlobals* tdgbl = BurpGlobals::getSpecific();
USHORT count = 1;
Firebird::HalfStaticArray<burp_fld*, 16> field_list;
// if we have all capabilities, use the first request to get the
// most performance out of the latest engine; if we don't
// have one of the capabilities we must use the second set of
// requests--this requires more code but it is well worth it
// for the performance benefits, especially remotely--deej
if (tdgbl->runtimeODS >= DB_VERSION_DDL12)
{
FOR (REQUEST_HANDLE tdgbl->handles_get_fields_req_handle1)
X IN RDB$RELATION_FIELDS CROSS
Y IN RDB$FIELDS WITH
X.RDB$FIELD_SOURCE = Y.RDB$FIELD_NAME AND
X.RDB$RELATION_NAME EQ relation->rel_name
{
field = (burp_fld*) BURP_alloc_zero(sizeof(burp_fld));
field->fld_number = count++;
field->fld_type = Y.RDB$FIELD_TYPE;
field->fld_sub_type = Y.RDB$FIELD_SUB_TYPE;
field->fld_length = Y.RDB$FIELD_LENGTH;
field->fld_scale = Y.RDB$FIELD_SCALE;
field->fld_id = X.RDB$FIELD_ID;
if (!X.RDB$DESCRIPTION.NULL)
{
blob_id = &X.RDB$DESCRIPTION;
if (blob_id->gds_quad_low || blob_id->gds_quad_high)
field->fld_description = X.RDB$DESCRIPTION;
}
if (!X.RDB$QUERY_HEADER.NULL)
{
blob_id = &X.RDB$QUERY_HEADER;
if (blob_id->gds_quad_low || blob_id->gds_quad_high)
field->fld_query_header = X.RDB$QUERY_HEADER;
}
if (X.RDB$FIELD_POSITION.NULL)
field->fld_flags |= FLD_position_missing;
else
field->fld_position = X.RDB$FIELD_POSITION;
field->fld_view_context = X.RDB$VIEW_CONTEXT;
if (X.RDB$UPDATE_FLAG.NULL)
field->fld_flags |= FLD_update_missing;
else
field->fld_update_flag = X.RDB$UPDATE_FLAG;
COPY (X.RDB$FIELD_NAME, field->fld_name);
COPY (X.RDB$FIELD_SOURCE, field->fld_source);
COPY (X.RDB$BASE_FIELD, field->fld_base);
COPY (X.RDB$QUERY_NAME, field->fld_query_name);
COPY (X.RDB$EDIT_STRING, field->fld_edit_string);
COPY (X.RDB$COMPLEX_NAME, field->fld_complex_name);
blob_id = &Y.RDB$COMPUTED_BLR;
if (blob_id->gds_quad_low || blob_id->gds_quad_high) {
field->fld_flags |= FLD_computed;
}
field->fld_system_flag = X.RDB$SYSTEM_FLAG;
COPY (X.RDB$SECURITY_CLASS, field->fld_security_class);
// use the fld_flags to mark the field as an array and
// to differentiate it from other blobs
if (Y.RDB$DIMENSIONS)
{
field->fld_flags |= FLD_array;
field->fld_dimensions = Y.RDB$DIMENSIONS;
if (field->fld_dimensions < 0) {
BURP_error_redirect (NULL, 52, SafeArg() << field->fld_name);
}
// msg 52 array dimension for field %s is invalid
get_ranges (field);
}
if (!X.RDB$NULL_FLAG.NULL)
{
field->fld_null_flag = X.RDB$NULL_FLAG;
field->fld_flags |= FLD_null_flag;
}
if (!X.RDB$DEFAULT_VALUE.NULL)
{
blob_id = &X.RDB$DEFAULT_VALUE;
if (blob_id->gds_quad_low || blob_id->gds_quad_high) {
field->fld_default_value = X.RDB$DEFAULT_VALUE;
}
}
if (!X.RDB$DEFAULT_SOURCE.NULL)
{
blob_id = &X.RDB$DEFAULT_SOURCE;
if (blob_id->gds_quad_low || blob_id->gds_quad_high) {
field->fld_default_source = X.RDB$DEFAULT_SOURCE;
}
}
if (!Y.RDB$CHARACTER_SET_ID.NULL)
{
field->fld_character_set_id = CSetId(Y.RDB$CHARACTER_SET_ID);
field->fld_flags |= FLD_charset_flag;
}
if (!X.RDB$COLLATION_ID.NULL)
{
field->fld_collation_id = CollId(X.RDB$COLLATION_ID);
field->fld_flags |= FLD_collate_flag;
}
// ODS 12
if (!X.RDB$GENERATOR_NAME.NULL)
{
COPY(X.RDB$GENERATOR_NAME, field->fld_generator);
field->fld_identity_type = X.RDB$IDENTITY_TYPE;
}
field_list.add(field);
}
END_FOR
ON_ERROR
general_on_error();
END_ERROR
}
else
{
FOR (REQUEST_HANDLE tdgbl->handles_get_fields_req_handle1)
X IN RDB$RELATION_FIELDS CROSS
Y IN RDB$FIELDS WITH
X.RDB$FIELD_SOURCE = Y.RDB$FIELD_NAME AND
X.RDB$RELATION_NAME EQ relation->rel_name
{
field = (burp_fld*) BURP_alloc_zero(sizeof(burp_fld));
field->fld_number = count++;
field->fld_type = Y.RDB$FIELD_TYPE;
field->fld_sub_type = Y.RDB$FIELD_SUB_TYPE;
field->fld_length = Y.RDB$FIELD_LENGTH;
field->fld_scale = Y.RDB$FIELD_SCALE;
field->fld_id = X.RDB$FIELD_ID;
if (!X.RDB$DESCRIPTION.NULL)
{
blob_id = &X.RDB$DESCRIPTION;
if (blob_id->gds_quad_low || blob_id->gds_quad_high)
field->fld_description = X.RDB$DESCRIPTION;
}
if (!X.RDB$QUERY_HEADER.NULL)
{
blob_id = &X.RDB$QUERY_HEADER;
if (blob_id->gds_quad_low || blob_id->gds_quad_high)
field->fld_query_header = X.RDB$QUERY_HEADER;
}
if (X.RDB$FIELD_POSITION.NULL)
field->fld_flags |= FLD_position_missing;
else
field->fld_position = X.RDB$FIELD_POSITION;
field->fld_view_context = X.RDB$VIEW_CONTEXT;
if (X.RDB$UPDATE_FLAG.NULL)
field->fld_flags |= FLD_update_missing;
else
field->fld_update_flag = X.RDB$UPDATE_FLAG;
COPY (X.RDB$FIELD_NAME, field->fld_name);
COPY (X.RDB$FIELD_SOURCE, field->fld_source);
COPY (X.RDB$BASE_FIELD, field->fld_base);
COPY (X.RDB$QUERY_NAME, field->fld_query_name);
COPY (X.RDB$EDIT_STRING, field->fld_edit_string);
COPY (X.RDB$COMPLEX_NAME, field->fld_complex_name);
blob_id = &Y.RDB$COMPUTED_BLR;
if (blob_id->gds_quad_low || blob_id->gds_quad_high) {
field->fld_flags |= FLD_computed;
}
field->fld_system_flag = X.RDB$SYSTEM_FLAG;
COPY (X.RDB$SECURITY_CLASS, field->fld_security_class);
// use the fld_flags to mark the field as an array and
// to differentiate it from other blobs
if (Y.RDB$DIMENSIONS)
{
field->fld_flags |= FLD_array;
field->fld_dimensions = Y.RDB$DIMENSIONS;
if (field->fld_dimensions < 0) {
BURP_error_redirect (NULL, 52, SafeArg() << field->fld_name);
}
// msg 52 array dimension for field %s is invalid
get_ranges (field);
}
if (!X.RDB$NULL_FLAG.NULL)
{
field->fld_null_flag = X.RDB$NULL_FLAG;
field->fld_flags |= FLD_null_flag;
}
if (!X.RDB$DEFAULT_VALUE.NULL)
{
blob_id = &X.RDB$DEFAULT_VALUE;
if (blob_id->gds_quad_low || blob_id->gds_quad_high) {
field->fld_default_value = X.RDB$DEFAULT_VALUE;
}
}
if (!X.RDB$DEFAULT_SOURCE.NULL)
{
blob_id = &X.RDB$DEFAULT_SOURCE;
if (blob_id->gds_quad_low || blob_id->gds_quad_high) {
field->fld_default_source = X.RDB$DEFAULT_SOURCE;
}
}
if (!Y.RDB$CHARACTER_SET_ID.NULL)
{
field->fld_character_set_id = CSetId(Y.RDB$CHARACTER_SET_ID);
field->fld_flags |= FLD_charset_flag;
}
if (!X.RDB$COLLATION_ID.NULL)
{
field->fld_collation_id = CollId(X.RDB$COLLATION_ID);
field->fld_flags |= FLD_collate_flag;
}
field_list.add(field);
}
END_FOR
ON_ERROR
general_on_error();
END_ERROR
}
burp_fld* fields = NULL;
while (field_list.getCount())
{
field = field_list.pop();
field->fld_next = fields;
fields = field;
}
return fields;
}
SINT64 get_gen_id( const TEXT* name, SSHORT name_len)
{
/**************************************
*
* g e t _ g e n _ i d
*
**************************************
*
* Functional description
* Read id for a generator;
*
**************************************/
try
{
BurpGlobals* tdgbl = BurpGlobals::getSpecific();
Firebird::string nm, sql;
nm.assign(name, name_len);
BURP_makeSymbol(tdgbl, nm);
sql = "select first(1) gen_id(" + nm + ", 0) from rdb$database";
BurpSql getGenerator(tdgbl, sql.c_str());
FB_MESSAGE(GetGen, Firebird::ThrowWrapper, (FB_BIGINT, id));
GetGen getGen(&tdgbl->throwStatus, Firebird::MasterInterfacePtr());
getGenerator.singleSelect(tdgbl->tr_handle, &getGen);
return getGen->id;
}
catch (const Firebird::FbException& ex)
{
Firebird::IStatus* st = ex.getStatus();
// if there's no gen_id, never mind ...
if (st->getErrors()[1] == isc_dsql_error)
return 0;
BURP_error_redirect(st, 25);
// msg 25 Failed in put_blr_gen_id
}
return 0; // warning silencer
}
void get_ranges( burp_fld* field)
{
/**************************************
*
* g e t _ r a n g e s
*
**************************************
*
* Functional description
* Fill in the range low and high bounds by reading
* the ranges in rdb$field_dimensions.
*
**************************************/
BurpGlobals* tdgbl = BurpGlobals::getSpecific();
SLONG* rp = field->fld_ranges;
USHORT count = 0;
// Get the array dimensions in the rdb$field_dimensions
FOR (REQUEST_HANDLE tdgbl->handles_get_ranges_req_handle1)
X IN RDB$FIELD_DIMENSIONS
WITH X.RDB$FIELD_NAME EQ field->fld_source
SORTED BY X.RDB$DIMENSION
if (count != X.RDB$DIMENSION)
BURP_error_redirect (NULL, 52, SafeArg() << field->fld_name);
// msg 52 array dimension for field %s is invalid
*rp++ = X.RDB$LOWER_BOUND;
*rp++ = X.RDB$UPPER_BOUND;
count++;
END_FOR;
ON_ERROR
general_on_error();
END_ERROR;
if (count != field->fld_dimensions)
BURP_error_redirect(NULL, 52, SafeArg() << field->fld_name);
// msg 52 array dimension for field %s is invalid
}
void put_array( burp_fld* field, burp_rel* relation, ISC_QUAD* blob_id)
{
/**************************************
*
* p u t _ a r r a y
*
**************************************
*
* Functional description
* Write out an array. If, however, it's null, don't even bother.
*
**************************************/
SLONG range_buffer[16]; // enough for 16 dimensions
UCHAR blr_buffer[200]; // enough for a sdl with 16 dimensions
BurpGlobals* tdgbl = BurpGlobals::getSpecific();
// If the array is null, don't store it. It will be restored as null.
if (!blob_id->gds_quad_low && !blob_id->gds_quad_high)
return;