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221397cdbe
BUILD/compile-pentium-debug-max: Added --with-raid configure.in: Removed -DFN_NO_CASE_SENCE for Mac OS X as this is not always true mysql-test/install_test_db.sh: Added --skip-warnings mysql-test/mysql-test-run.sh: Fixes to get --gdb and --ddd to work mysql-test/r/lowercase_table2.result: Test for lower_case_table_names=2 and temporary tables mysql-test/r/lowercase_table3.result: Fixed error message mysql-test/r/multi_update.result: Test of behaviour of multi-table-delete and alias mysql-test/t/lowercase_table2.test: Test for lower_case_table_names=2 and temporary tables mysql-test/t/lowercase_table3.test: Fixed error mysql-test/t/multi_update.test: Test of behaviour of multi-table-delete and alias (Bug #2940) mysys/mf_iocache.c: Renamed _flush_io_cache to my_b_flush_io_cache sql/ha_myisam.cc: Added comment sql/lock.cc: Extra debugging sql/log.cc: New parameter to flush_relay_log_info sql/log_event.cc: New parameter to flush_relay_log_info sql/mf_iocache.cc: Removed not used header files sql/mysqld.cc: More debugging info Less warnings when run with --skip-warnings sql/opt_range.cc: More debug information sql/repl_failsafe.cc: New parameter to flush_relay_log_info sql/slave.cc: First start SQL thread, then start IO thread. This fixed a raze condition in SLAVE START (Bug #2921) Ensure that we have a lock on the IO thread before flushing a relay log file that. The original code could core dump when a relay log rotated. sql/slave.h: New parameter to flush_relay_log_info sql/sql_base.cc: Added warning sql/sql_handler.cc: Indentation fix sql/sql_repl.cc: New parameter to flush_relay_log_info sql/sql_select.cc: Fixed problem with deleting temporary tables when using lower_case_table_names=2. (Bug #2858) sql/sql_table.cc: Fixed comment sql/sql_yacc.yy: Removed compiler warning include/my_sys.h: Fixed usage of unpack_filename mysys/mf_pack.c: Changed unpack_filename() to return length of result string. mysys/test_fn.c: Fixed usage of unpack_filename sql/sql_db.cc: Fixed memory leak with raid tables sql/table.cc: Fixed usage of unpack_filename
80 lines
2.6 KiB
C++
80 lines
2.6 KiB
C++
/* Copyright (C) 2000 MySQL AB & MySQL Finland AB & TCX DataKonsult AB
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This program is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; either version 2 of the License, or
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(at your option) any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program; if not, write to the Free Software
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Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA */
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/*
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Cashing of files with only does (sequential) read or writes of fixed-
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length records. A read isn't allowed to go over file-length. A read is ok
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if it ends at file-length and next read can try to read after file-length
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(and get a EOF-error).
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Possibly use of asyncronic io.
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macros for read and writes for faster io.
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Used instead of FILE when reading or writing whole files.
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This will make mf_rec_cache obsolete.
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One can change info->pos_in_file to a higher value to skip bytes in file if
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also info->rc_pos is set to info->rc_end.
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If called through open_cached_file(), then the temporary file will
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only be created if a write exeeds the file buffer or if one calls
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flush_io_cache().
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*/
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#include "mysql_priv.h"
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extern "C" {
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/*
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** Read buffered from the net.
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** Returns 1 if can't read requested characters
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** Returns 0 if record read
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*/
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int _my_b_net_read(register IO_CACHE *info, byte *Buffer,
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uint Count __attribute__((unused)))
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{
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ulong read_length;
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NET *net= &(current_thd)->net;
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DBUG_ENTER("_my_b_net_read");
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if (!info->end_of_file)
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DBUG_RETURN(1); /* because my_b_get (no _) takes 1 byte at a time */
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read_length=my_net_read(net);
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if (read_length == packet_error)
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{
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info->error= -1;
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DBUG_RETURN(1);
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}
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if (read_length == 0)
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{
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info->end_of_file= 0; /* End of file from client */
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DBUG_RETURN(1);
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}
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/* to set up stuff for my_b_get (no _) */
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info->read_end = (info->read_pos = (byte*) net->read_pos) + read_length;
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Buffer[0] = info->read_pos[0]; /* length is always 1 */
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/*
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info->request_pos is used by log_loaded_block() to know the size
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of the current block.
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info->pos_in_file is used by log_loaded_block() too.
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*/
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info->pos_in_file+= read_length;
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info->request_pos=info->read_pos;
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info->read_pos++;
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DBUG_RETURN(0);
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}
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} /* extern "C" */
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