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authorunknown <monty@hundin.mysql.fi>2001-10-08 04:58:07 +0300
committerunknown <monty@hundin.mysql.fi>2001-10-08 04:58:07 +0300
commitcef1d752497f81229788e56abaf7fa62c1ab31a9 (patch)
treef8a3cf3164d5a5550378074ac8d3bf4afe105683 /merge/mrg_rrnd.c
parentbd7b4aaa7dac716bb6d54b3d1dd355f78b68f0f2 (diff)
downloadmariadb-git-cef1d752497f81229788e56abaf7fa62c1ab31a9.tar.gz
Updated manual about embedded version.
Speed up column-completion in 'mysql' Don't use ISAM if HAVE_ISAM is not defined A lot of fixes for the embedded version. All libraries are now included in libmysqld.a Changed arguments to convert_dirname() to make it more general. Renamed files in the 'merge' directory to all use a common prefix. Don't compile both assembler and C functions on x86 BitKeeper/deleted/.del-mf_pack2.c~f07795bbcf57be7: Delete: mysys/mf_pack2.c Docs/manual.texi: Updated chapter about embedded version acinclude.m4: Fix for using BDB and InnoDB with embedded client/completion_hash.cc: Speed up memory allocation client/completion_hash.h: Speed up memory allocation client/mysql.cc: Speed up memory allocation client/mysqldump.c: Fix to use now convert_dirname client/mysqltest.c: Fixed memory allocation bugs. Added --basedir=#, --compress=#, --server-arg, --server-file. Fixes for embedded version Changed silent mode to -s instead of -q include/my_global.h: Update to use HAVE_ISAM include/my_sys.h: Cleanup of fn_format() include/mysql.h: Prepare FIELD struct for 4.1 include/mysql_embed.h: Don't use ISAM in embedded version innobase/include/srv0srv.h: Make InnoDB startup/shutdown silent in embedded version innobase/log/log0log.c: Make InnoDB startup/shutdown silent in embedded version innobase/srv/srv0srv.c: Make InnoDB startup/shutdown silent in embedded version innobase/srv/srv0start.c: Make InnoDB startup/shutdown silent in embedded version isam/isamlog.c: new convert_dirname libmysql/libmysql.c: Prepare for 4.1 libmysqld/Makefile.am: Changed to create one libmysqld.a file that includes all other libraries. libmysqld/examples/Makefile.am: Changed to use new libmysqld.a libmysqld/examples/test-run: Lot's of fixes to get new mysqltest with embedded MySQL to work. libmysqld/lib_sql.cc: Changed type of arguments for mysql_server_init() to make code more portable. libmysqld/libmysqld.c: Cleanup merge/Makefile.am: Rename to use common prefix. merge/mrg_close.c: Rename to use common prefix. merge/mrg_create.c: Rename to use common prefix. merge/mrg_def.h: Rename to use common prefix. merge/mrg_delete.c: Rename to use common prefix. merge/mrg_extra.c: Rename to use common prefix. merge/mrg_info.c: Rename to use common prefix. merge/mrg_locking.c: Rename to use common prefix. merge/mrg_open.c: Rename to use common prefix. merge/mrg_panic.c: Rename to use common prefix. merge/mrg_rrnd.c: Rename to use common prefix. merge/mrg_rsame.c: Rename to use common prefix. merge/mrg_static.c: Rename to use common prefix. merge/mrg_update.c: Rename to use common prefix. myisam/myisamlog.c: Use new convert_dirname myisammrg/Makefile.am: Renamed mymrgdef.h -> myrg_def.h myisammrg/myrg_close.c: Renamed mymrgdef.h -> myrg_def.h myisammrg/myrg_create.c: Renamed mymrgdef.h -> myrg_def.h myisammrg/myrg_def.h: Renamed mymrgdef.h -> myrg_def.h myisammrg/myrg_delete.c: Renamed mymrgdef.h -> myrg_def.h myisammrg/myrg_extra.c: Renamed mymrgdef.h -> myrg_def.h myisammrg/myrg_info.c: Renamed mymrgdef.h -> myrg_def.h myisammrg/myrg_locking.c: Renamed mymrgdef.h -> myrg_def.h myisammrg/myrg_open.c: Renamed mymrgdef.h -> myrg_def.h myisammrg/myrg_panic.c: Renamed mymrgdef.h -> myrg_def.h myisammrg/myrg_queue.c: Renamed mymrgdef.h -> myrg_def.h myisammrg/myrg_rfirst.c: Renamed mymrgdef.h -> myrg_def.h myisammrg/myrg_rkey.c: Renamed mymrgdef.h -> myrg_def.h myisammrg/myrg_rlast.c: Renamed mymrgdef.h -> myrg_def.h myisammrg/myrg_rnext.c: Renamed mymrgdef.h -> myrg_def.h myisammrg/myrg_rprev.c: Renamed mymrgdef.h -> myrg_def.h myisammrg/myrg_rrnd.c: Renamed mymrgdef.h -> myrg_def.h myisammrg/myrg_rsame.c: Renamed mymrgdef.h -> myrg_def.h myisammrg/myrg_static.c: Renamed mymrgdef.h -> myrg_def.h myisammrg/myrg_update.c: Renamed mymrgdef.h -> myrg_def.h myisammrg/myrg_write.c: Renamed mymrgdef.h -> myrg_def.h mysql-test/include/master-slave.inc: Use short filenames for sockets (portability problem on Mac OS X) mysql-test/mysql-test-run.sh: cleanup mysql-test/r/auto_increment.result: Cleanup of tests for embedded version mysql-test/r/func_system.result: Cleanup of tests for embedded version mysql-test/r/isam.result: Cleanup of tests for embedded version mysql-test/r/lock.result: Cleanup of tests for embedded version mysql-test/r/show_check.result: Cleanup of tests for embedded version mysql-test/t/auto_increment.test: Cleanup of tests for embedded version mysql-test/t/backup.test: Cleanup of tests for embedded version mysql-test/t/count_distinct2-master.opt: Cleanup of tests for embedded version mysql-test/t/count_distinct2.test: Cleanup of tests for embedded version mysql-test/t/create.test: Cleanup of tests for embedded version mysql-test/t/flush.test: Cleanup of tests for embedded version mysql-test/t/func_system.test: Cleanup of tests for embedded version mysql-test/t/isam.test: Cleanup of tests for embedded version mysql-test/t/kill.test: Cleanup of tests for embedded version mysql-test/t/lock.test: Cleanup of tests for embedded version mysql-test/t/order_fill_sortbuf-master.opt: Cleanup of tests for embedded version mysql-test/t/rpl000015.test: Use short filenames for sockets (portability problem on Mac OS X) mysql-test/t/rpl000016.test: Use short filenames for sockets (portability problem on Mac OS X) mysql-test/t/rpl000017.test: Use short filenames for sockets (portability problem on Mac OS X) mysql-test/t/rpl000018.test: Use short filenames for sockets (portability problem on Mac OS X) mysql-test/t/show_check.test: Move ISAM specific tests to isam.test mysql-test/t/status.test: Cleanup of tests for embedded version mysql-test/t/tablelock.test: Cleanup mysys/Makefile.am: Removed not used mf_pack2.c mysys/charset.c: new convert_dirname mysys/default.c: new convert_dirname mysys/mf_dirname.c: Changed convert_dirname() to be more general mysys/mf_format.c: Changed bit flags to fn_format() to defines. Added handling of relative filenames BitKeeper/etc/ignore: Added libmysqld/examples/test-gdbinit scripts/mysql_explain_log to the ignore list mysys/mf_pack.c: new convert_dirname mysys/mf_tempfile.c: new convert_dirname scripts/Makefile.am: Adde mysql_explain_log scripts/mysql_config.sh: Added support of --libmysqld-libs sql/Makefile.am: Fix to use 'innodb_system_libs' sql/ha_innobase.cc: Make InnoDB startup/shutdown silent in embedded version sql/ha_isam.cc: Added handling of HAVE_ISAM sql/ha_isammrg.cc: Added handling of HAVE_ISAM sql/ha_myisam.cc: Handle relative paths; Needed to support BACKUP TABLE in embedded version sql/ha_myisammrg.cc: Rename of filenames sql/handler.cc: Added handling of HAVE_ISAM sql/item_func.cc: Fix for ecc (Intel Compiler) sql/mysql_priv.h: Added global variable 'mysql_embedded' sql/mysqld.cc: Use HAVE_ISAM sql/sql_parse.cc: Use new convert_dirname sql/sql_select.cc: Fix for ecc (Intel Compiler) sql/sql_table.cc: Added handling of relative filenames strings/Makefile.am: Don't compile both assembler and C functions on x86 strings/bchange.c: cleanup
Diffstat (limited to 'merge/mrg_rrnd.c')
-rw-r--r--merge/mrg_rrnd.c110
1 files changed, 110 insertions, 0 deletions
diff --git a/merge/mrg_rrnd.c b/merge/mrg_rrnd.c
new file mode 100644
index 00000000000..42430a039f7
--- /dev/null
+++ b/merge/mrg_rrnd.c
@@ -0,0 +1,110 @@
+/* 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 */
+
+/*
+ Read a record with random-access. The position to the record must
+ get by mrg_info(). The next record can be read with pos= -1 */
+
+
+#include "mrg_def.h"
+
+static MRG_TABLE *find_table(MRG_TABLE *start,MRG_TABLE *end,mrg_off_t pos);
+
+/*
+ If filepos == -1, read next
+ Returns same as nisam_rrnd:
+ 0 = Ok.
+ 1 = Record deleted.
+ -1 = EOF (or something, errno should be HA_ERR_END_OF_FILE)
+*/
+
+int mrg_rrnd(MRG_INFO *info,byte *buf,mrg_off_t filepos)
+{
+ int error;
+ N_INFO *isam_info;
+
+ if (filepos == ~(mrg_off_t) 0) /* Can't use HA_POS_ERROR */
+ {
+ if (!info->current_table)
+ {
+ if (info->open_tables == info->end_table)
+ { /* No tables */
+ my_errno=HA_ERR_END_OF_FILE;
+ return -1;
+ }
+ isam_info=(info->current_table=info->open_tables)->table;
+ if (info->cache_in_use)
+ nisam_extra(isam_info,HA_EXTRA_CACHE);
+ filepos=isam_info->s->pack.header_length;
+ isam_info->lastinx= (uint) -1; /* Can't forward or backward */
+ }
+ else
+ {
+ isam_info=info->current_table->table;
+ filepos= isam_info->nextpos;
+ }
+
+ for (;;)
+ {
+ isam_info->update&= HA_STATE_CHANGED;
+ if ((error=(*isam_info->s->read_rnd)(isam_info,(byte*) buf,
+ filepos,1)) >= 0 ||
+ my_errno != HA_ERR_END_OF_FILE)
+ return (error);
+ if (info->cache_in_use)
+ nisam_extra(info->current_table->table,HA_EXTRA_NO_CACHE);
+ if (info->current_table+1 == info->end_table)
+ return(-1);
+ info->current_table++;
+ info->last_used_table=info->current_table;
+ if (info->cache_in_use)
+ nisam_extra(info->current_table->table,HA_EXTRA_CACHE);
+ info->current_table->file_offset=
+ info->current_table[-1].file_offset+
+ info->current_table[-1].table->s->state.data_file_length;
+
+ isam_info=info->current_table->table;
+ filepos=isam_info->s->pack.header_length;
+ isam_info->lastinx= (uint) -1;
+ }
+ }
+ info->current_table=find_table(info->open_tables,
+ info->end_table-1,filepos);
+ isam_info=info->current_table->table;
+ isam_info->update&= HA_STATE_CHANGED;
+ return ((*isam_info->s->read_rnd)(isam_info,(byte*) buf,
+ (ulong) (filepos -
+ info->current_table->file_offset),
+ 0));
+}
+
+
+ /* Find which table to use according to file-pos */
+
+static MRG_TABLE *find_table(MRG_TABLE *start,MRG_TABLE *end,mrg_off_t pos)
+{
+ MRG_TABLE *mid;
+
+ while (start != end)
+ {
+ mid=start+((uint) (end-start)+1)/2;
+ if (mid->file_offset > pos)
+ end=mid-1;
+ else
+ start=mid;
+ }
+ return start;
+}