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BUG#26978 - s->z_err not assigned a value?

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azio didn't handle situation when my_read() returns error.

Added handling of situation when my_read() returns error.

No test case for this fix.
This commit is contained in:
svoj@mysql.com/june.mysql.com 2007-12-12 17:16:59 +04:00
parent 94c74110d9
commit 62fb86207a
3 changed files with 81 additions and 2 deletions
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35
mysql-test/r/bdb_notembedded.result Normal file
View file

@ -0,0 +1,35 @@
set autocommit=1;
reset master;
create table bug16206 (a int);
insert into bug16206 values(1);
start transaction;
insert into bug16206 values(2);
commit;
show binlog events;
Log_name Pos Event_type Server_id End_log_pos Info
f n Format_desc 1 n Server ver: VERSION, Binlog ver: 4
f n Query 1 n use `test`; create table bug16206 (a int)
f n Query 1 n use `test`; insert into bug16206 values(1)
f n Query 1 n use `test`; insert into bug16206 values(2)
drop table bug16206;
reset master;
create table bug16206 (a int) engine= bdb;
insert into bug16206 values(0);
insert into bug16206 values(1);
start transaction;
insert into bug16206 values(2);
commit;
insert into bug16206 values(3);
show binlog events;
Log_name Pos Event_type Server_id End_log_pos Info
f n Format_desc 1 n Server ver: VERSION, Binlog ver: 4
f n Query 1 n use `test`; create table bug16206 (a int) engine= bdb
f n Query 1 n use `test`; insert into bug16206 values(0)
f n Query 1 n use `test`; insert into bug16206 values(1)
f n Query 1 n use `test`; BEGIN
f n Query 1 n use `test`; insert into bug16206 values(2)
f n Query 1 n use `test`; COMMIT
f n Query 1 n use `test`; insert into bug16206 values(3)
drop table bug16206;
set autocommit=0;
End of 5.0 tests

38
mysql-test/t/bdb_notembedded.test Normal file
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@ -0,0 +1,38 @@
-- source include/not_embedded.inc
-- source include/have_bdb.inc
#
# Bug #16206: Superfluous COMMIT event in binlog when updating BDB in autocommit mode
#
set autocommit=1;
let $VERSION=`select version()`;
reset master;
create table bug16206 (a int);
insert into bug16206 values(1);
start transaction;
insert into bug16206 values(2);
commit;
--replace_result $VERSION VERSION
--replace_column 1 f 2 n 5 n
show binlog events;
drop table bug16206;
reset master;
create table bug16206 (a int) engine= bdb;
insert into bug16206 values(0);
insert into bug16206 values(1);
start transaction;
insert into bug16206 values(2);
commit;
insert into bug16206 values(3);
--replace_result $VERSION VERSION
--replace_column 1 f 2 n 5 n
show binlog events;
drop table bug16206;
set autocommit=0;
--echo End of 5.0 tests

10
storage/archive/azio.c
View file

@ -225,11 +225,17 @@ int get_byte(s)
if (s->stream.avail_in == 0)
{
errno = 0;
s->stream.avail_in = my_read(s->file, (uchar *)s->inbuf, AZ_BUFSIZE_READ, MYF(0));
s->stream.avail_in= (uInt) my_read(s->file, (uchar *)s->inbuf,
AZ_BUFSIZE_READ, MYF(0));
if (s->stream.avail_in == 0)
{
s->z_eof = 1;
/* if (ferror(s->file)) s->z_err = Z_ERRNO; */
return EOF;
}
else if (s->stream.avail_in == (uInt) -1)
{
s->z_eof= 1;
s->z_err= Z_ERRNO;
return EOF;
}
s->stream.next_in = s->inbuf;