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nexedi
MariaDB
Commits
fc8ac2c1
Commit
fc8ac2c1
authored
19 years ago
by
unknown
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Merge tulin@bk-internal.mysql.com:/home/bk/mysql-4.1
into poseidon.ndb.mysql.com:/home/tomas/mysql-4.1
parents
4801c2e6
ae716978
Branches unavailable
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No related merge requests found
Changes
1
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1 changed file
with
27 additions
and
30 deletions
+27
-30
ndb/src/kernel/blocks/ndbfs/AsyncFile.cpp
ndb/src/kernel/blocks/ndbfs/AsyncFile.cpp
+27
-30
No files found.
ndb/src/kernel/blocks/ndbfs/AsyncFile.cpp
View file @
fc8ac2c1
...
...
@@ -27,6 +27,14 @@
#include <NdbThread.h>
#include <signaldata/FsOpenReq.hpp>
// use this to test broken pread code
//#define HAVE_BROKEN_PREAD
#ifdef HAVE_BROKEN_PREAD
#undef HAVE_PWRITE
#undef HAVE_PREAD
#endif
#if defined NDB_WIN32 || defined NDB_OSE || defined NDB_SOFTOSE
#else
// For readv and writev
...
...
@@ -379,9 +387,12 @@ AsyncFile::readBuffer(char * buf, size_t size, off_t offset){
if
(
dwSFP
!=
offset
)
{
return
GetLastError
();
}
#elif defined NDB_OSE || defined NDB_SOFTOSE
return_value
=
lseek
(
theFd
,
offset
,
SEEK_SET
);
if
(
return_value
!=
offset
)
{
#elif ! defined(HAVE_PREAD)
off_t
seek_val
;
while
((
seek_val
=
lseek
(
theFd
,
offset
,
SEEK_SET
))
==
(
off_t
)
-
1
&&
errno
==
EINTR
);
if
(
seek_val
==
(
off_t
)
-
1
)
{
return
errno
;
}
#endif
...
...
@@ -400,10 +411,10 @@ AsyncFile::readBuffer(char * buf, size_t size, off_t offset){
return
GetLastError
();
}
bytes_read
=
dwBytesRead
;
#elif
defined NDB_OSE || defined NDB_SOFTOSE
#elif
! defined(HAVE_PREAD)
return_value
=
::
read
(
theFd
,
buf
,
size
);
#else // UNIX
return_value
=
my_pread
(
theFd
,
buf
,
size
,
offset
,
0
);
return_value
=
::
pread
(
theFd
,
buf
,
size
,
offset
);
#endif
#ifndef NDB_WIN32
if
(
return_value
==
-
1
&&
errno
==
EINTR
)
{
...
...
@@ -453,7 +464,7 @@ AsyncFile::readReq( Request * request)
void
AsyncFile
::
readvReq
(
Request
*
request
)
{
#if
defined NDB_OSE || defined NDB_SOFTOSE
#if
! defined(HAVE_PREAD)
readReq
(
request
);
return
;
#elif defined NDB_WIN32
...
...
@@ -483,7 +494,7 @@ AsyncFile::readvReq( Request * request)
int
AsyncFile
::
extendfile
(
Request
*
request
)
{
#if
defined NDB_OSE || defined NDB_SOFTOSE
#if
! defined(HAVE_PWRITE)
// Find max size of this file in this request
int
maxOffset
=
0
;
int
maxSize
=
0
;
...
...
@@ -592,27 +603,13 @@ AsyncFile::writeBuffer(const char * buf, size_t size, off_t offset,
if
(
dwSFP
!=
offset
)
{
return
GetLastError
();
}
#elif defined NDB_OSE || defined NDB_SOFTOSE
return_value
=
lseek
(
theFd
,
offset
,
SEEK_SET
);
if
(
return_value
!=
offset
)
{
DEBUG
(
ndbout_c
(
"AsyncFile::writeReq, err1: return_value=%d, offset=%d
\n
"
,
return_value
,
chunk_offset
));
PRINT_ERRORANDFLAGS
(
0
);
if
(
errno
==
78
)
{
// Could not write beyond end of file, try to extend file
DEBUG
(
ndbout_c
(
"AsyncFile::writeReq, Extend. file! filename=
\"
%s
\"
\n
"
,
theFileName
.
c_str
()));
return_value
=
extendfile
(
request
);
if
(
return_value
==
-
1
)
{
return
errno
;
}
return_value
=
lseek
(
theFd
,
offset
,
SEEK_SET
);
if
(
return_value
!=
offset
)
{
return
errno
;
}
}
else
{
return
errno
;
}
#elif ! defined(HAVE_PWRITE)
off_t
seek_val
;
while
((
seek_val
=
lseek
(
theFd
,
offset
,
SEEK_SET
))
==
(
off_t
)
-
1
&&
errno
==
EINTR
);
if
(
seek_val
==
(
off_t
)
-
1
)
{
return
errno
;
}
#endif
...
...
@@ -634,10 +631,10 @@ AsyncFile::writeBuffer(const char * buf, size_t size, off_t offset,
DEBUG
(
ndbout_c
(
"Warning partial write %d != %d"
,
bytes_written
,
bytes_to_write
));
}
#elif
defined NDB_OSE || defined NDB_SOFTOSE
#elif
! defined(HAVE_PWRITE)
return_value
=
::
write
(
theFd
,
buf
,
bytes_to_write
);
#else // UNIX
return_value
=
my_pwrite
(
theFd
,
buf
,
bytes_to_write
,
offset
,
0
);
return_value
=
::
pwrite
(
theFd
,
buf
,
bytes_to_write
,
offset
);
#endif
#ifndef NDB_WIN32
if
(
return_value
==
-
1
&&
errno
==
EINTR
)
{
...
...
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