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Commit c45cfb7c authored by joerg@mysql.com's avatar joerg@mysql.com
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Manual merge of the 4.0.24 compile changes into the 4.1 tree.

parents 473f2f94 4e136e8d
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Showing with 91 additions and 333 deletions
include/my_sys.h
View file @ c45cfb7c
......@@ -189,11 +189,13 @@ void __CDECL hfree(void *ptr);
#endif
#endif /* MSDOS */
#ifndef errno /* did we already get it? */
#ifdef HAVE_ERRNO_AS_DEFINE
#include <errno.h> /* errno is a define */
#else
extern int errno; /* declare errno */
#endif
#endif /* #ifndef errno */
extern const char ** NEAR my_errmsg[];
extern char NEAR errbuff[NRERRBUFFS][ERRMSGSIZE];
extern char *home_dir; /* Home directory for user */
......
mysys/hash.c
View file @ c45cfb7c
......@@ -175,7 +175,7 @@ static uint hash_rec_mask(HASH *hash,HASH_LINK *pos,uint buffmax,
/* for compilers which can not handle inline */
static
#if !defined(__SUNPRO_C) && !defined(__USLC__) && !defined(__sgi)
#if !defined(__USLC__) && !defined(__sgi)
inline
#endif
unsigned int rec_hashnr(HASH *hash,const byte *record)
......
mysys/my_bitmap.c
View file @ c45cfb7c
......@@ -16,18 +16,7 @@
/*
Handling of uchar arrays as large bitmaps.
API limitations (or, rather asserted safety assumptions,
to encourage correct programming)
* the size of the used bitmap is less than ~(uint) 0
* it's a multiple of 8 (for efficiency reasons)
* when arguments are a bitmap and a bit number, the number
must be within bitmap size
* bitmap_set_prefix() is an exception - one can use ~0 to set all bits
* when both arguments are bitmaps, they must be of the same size
* bitmap_intersect() is an exception :)
(for for Bitmap::intersect(ulonglong map2buff))
We assume that the size of the used bitmap is less than ~(uint) 0
TODO:
Make assembler THREAD safe versions of these using test-and-set instructions
......@@ -35,76 +24,60 @@
#include "mysys_priv.h"
#include <my_bitmap.h>
#include <assert.h>
#include <m_string.h>
static inline void bitmap_lock(MY_BITMAP *map)
static inline void bitmap_lock(MY_BITMAP* map)
{
#ifdef THREAD
if (map->mutex)
pthread_mutex_lock(map->mutex);
if (map->thread_safe)
pthread_mutex_lock(&map->mutex);
#endif
}
static inline void bitmap_unlock(MY_BITMAP *map)
static inline void bitmap_unlock(MY_BITMAP* map)
{
#ifdef THREAD
if (map->mutex)
pthread_mutex_unlock(map->mutex);
if (map->thread_safe)
pthread_mutex_unlock(&map->mutex);
#endif
}
my_bool bitmap_init(MY_BITMAP *map, uchar *buf, uint bitmap_size,
my_bool thread_safe)
my_bool bitmap_init(MY_BITMAP *map, uint bitmap_size, my_bool thread_safe)
{
DBUG_ENTER("bitmap_init");
DBUG_ASSERT((bitmap_size & 7) == 0);
bitmap_size/=8;
if (!(map->bitmap=buf) &&
!(map->bitmap= (uchar*) my_malloc(bitmap_size +
(thread_safe ?
sizeof(pthread_mutex_t) : 0),
MYF(MY_WME | MY_ZEROFILL))))
if (!(map->bitmap=(uchar*) my_malloc((bitmap_size+7)/8,
MYF(MY_WME | MY_ZEROFILL))))
return 1;
map->bitmap_size=bitmap_size;
DBUG_ASSERT(bitmap_size != ~(uint) 0);
#ifdef THREAD
if (thread_safe)
{
map->mutex=(pthread_mutex_t *)(map->bitmap+bitmap_size);
pthread_mutex_init(map->mutex, MY_MUTEX_INIT_FAST);
}
else
map->mutex=0;
if ((map->thread_safe = thread_safe))
pthread_mutex_init(&map->mutex, MY_MUTEX_INIT_FAST);
#endif
DBUG_RETURN(0);
map->bitmap_size=bitmap_size;
return 0;
}
void bitmap_free(MY_BITMAP *map)
{
DBUG_ENTER("bitmap_free");
if (map->bitmap)
{
#ifdef THREAD
if (map->mutex)
pthread_mutex_destroy(map->mutex);
#endif
my_free((char*) map->bitmap, MYF(0));
map->bitmap=0;
#ifdef THREAD
if (map->thread_safe)
pthread_mutex_destroy(&map->mutex);
#endif
}
DBUG_VOID_RETURN;
}
void bitmap_set_bit(MY_BITMAP *map, uint bitmap_bit)
{
DBUG_ASSERT(map->bitmap && bitmap_bit < map->bitmap_size*8);
bitmap_lock(map);
bitmap_fast_set_bit(map, bitmap_bit);
bitmap_unlock(map);
if (bitmap_bit < map->bitmap_size)
{
bitmap_lock(map);
map->bitmap[bitmap_bit / 8] |= (1 << (bitmap_bit & 7));
bitmap_unlock(map);
}
}
......@@ -112,10 +85,9 @@ uint bitmap_set_next(MY_BITMAP *map)
{
uchar *bitmap=map->bitmap;
uint bit_found = MY_BIT_NONE;
uint bitmap_size=map->bitmap_size*8;
uint bitmap_size=map->bitmap_size;
uint i;
DBUG_ASSERT(map->bitmap);
bitmap_lock(map);
for (i=0; i < bitmap_size ; i++, bitmap++)
{
......@@ -141,191 +113,32 @@ uint bitmap_set_next(MY_BITMAP *map)
void bitmap_clear_bit(MY_BITMAP *map, uint bitmap_bit)
{
DBUG_ASSERT(map->bitmap && bitmap_bit < map->bitmap_size*8);
bitmap_lock(map);
bitmap_fast_clear_bit(map, bitmap_bit);
bitmap_unlock(map);
}
void bitmap_set_prefix(MY_BITMAP *map, uint prefix_size)
{
uint prefix_bytes, prefix_bits;
DBUG_ASSERT(map->bitmap &&
(prefix_size <= map->bitmap_size*8 || prefix_size == (uint) ~0));
bitmap_lock(map);
set_if_smaller(prefix_size, map->bitmap_size*8);
if ((prefix_bytes= prefix_size / 8))
memset(map->bitmap, 0xff, prefix_bytes);
if ((prefix_bits= prefix_size & 7))
map->bitmap[prefix_bytes++]= (1 << prefix_bits)-1;
if (prefix_bytes < map->bitmap_size)
bzero(map->bitmap+prefix_bytes, map->bitmap_size-prefix_bytes);
bitmap_unlock(map);
}
void bitmap_clear_all(MY_BITMAP *map)
{
bitmap_set_prefix(map, 0);
}
void bitmap_set_all(MY_BITMAP *map)
{
bitmap_set_prefix(map, ~0);
}
my_bool bitmap_is_prefix(const MY_BITMAP *map, uint prefix_size)
{
uint prefix_bits= prefix_size & 7, res= 0;
uchar *m= map->bitmap, *end_prefix= map->bitmap+prefix_size/8,
*end= map->bitmap+map->bitmap_size;
DBUG_ASSERT(map->bitmap && prefix_size <= map->bitmap_size*8);
bitmap_lock((MY_BITMAP *)map);
while (m < end_prefix)
if (*m++ != 0xff)
goto ret;
if (prefix_bits && *m++ != (1 << prefix_bits)-1)
goto ret;
while (m < end)
if (*m++ != 0)
goto ret;
res=1;
ret:
bitmap_unlock((MY_BITMAP *)map);
return res;
}
my_bool bitmap_is_clear_all(const MY_BITMAP *map)
{
return bitmap_is_prefix(map, 0);
}
my_bool bitmap_is_set_all(const MY_BITMAP *map)
{
return bitmap_is_prefix(map, map->bitmap_size*8);
}
my_bool bitmap_is_set(const MY_BITMAP *map, uint bitmap_bit)
{
DBUG_ASSERT(map->bitmap && bitmap_bit < map->bitmap_size*8);
return bitmap_fast_is_set(map, bitmap_bit);
}
my_bool bitmap_is_subset(const MY_BITMAP *map1, const MY_BITMAP *map2)
{
uint res=0;
uchar *m1=map1->bitmap, *m2=map2->bitmap, *end;
DBUG_ASSERT(map1->bitmap && map2->bitmap &&
map1->bitmap_size==map2->bitmap_size);
bitmap_lock((MY_BITMAP *)map1);
bitmap_lock((MY_BITMAP *)map2);
end= m1+map1->bitmap_size;
while (m1 < end)
if (bitmap_bit < map->bitmap_size)
{
if ((*m1++) & ~(*m2++))
goto ret;
bitmap_lock(map);
map->bitmap[bitmap_bit / 8] &= ~ (1 << (bitmap_bit & 7));
bitmap_unlock(map);
}
res=1;
ret:
bitmap_unlock((MY_BITMAP *)map2);
bitmap_unlock((MY_BITMAP *)map1);
return res;
}
my_bool bitmap_cmp(const MY_BITMAP *map1, const MY_BITMAP *map2)
{
uint res;
DBUG_ASSERT(map1->bitmap && map2->bitmap &&
map1->bitmap_size==map2->bitmap_size);
bitmap_lock((MY_BITMAP *)map1);
bitmap_lock((MY_BITMAP *)map2);
res= memcmp(map1->bitmap, map2->bitmap, map1->bitmap_size)==0;
bitmap_unlock((MY_BITMAP *)map2);
bitmap_unlock((MY_BITMAP *)map1);
return res;
}
void bitmap_intersect(MY_BITMAP *map, const MY_BITMAP *map2)
void bitmap_set_all(MY_BITMAP* map)
{
uchar *to=map->bitmap, *from=map2->bitmap, *end;
uint len=map->bitmap_size, len2=map2->bitmap_size;
DBUG_ASSERT(map->bitmap && map2->bitmap);
bitmap_lock(map);
bitmap_lock((MY_BITMAP *)map2);
end= to+min(len,len2);
while (to < end)
*to++ &= *from++;
if (len2 < len)
{
end+=len-len2;
while (to < end)
*to++=0;
}
bitmap_unlock((MY_BITMAP *)map2);
memset(map->bitmap, 0xff, (map->bitmap_size+7)/8);
bitmap_unlock(map);
}
void bitmap_subtract(MY_BITMAP *map, const MY_BITMAP *map2)
my_bool bitmap_is_set(MY_BITMAP* map, uint bitmap_bit)
{
uchar *to=map->bitmap, *from=map2->bitmap, *end;
DBUG_ASSERT(map->bitmap && map2->bitmap &&
map->bitmap_size==map2->bitmap_size);
bitmap_lock(map);
bitmap_lock((MY_BITMAP *)map2);
end= to+map->bitmap_size;
while (to < end)
*to++ &= ~(*from++);
bitmap_unlock((MY_BITMAP *)map2);
bitmap_unlock(map);
return (bitmap_bit < map->bitmap_size) ?
(map->bitmap[bitmap_bit / 8] & (1 << (bitmap_bit & 7))) :
0;
}
void bitmap_union(MY_BITMAP *map, const MY_BITMAP *map2)
void bitmap_clear_all(MY_BITMAP* map)
{
uchar *to=map->bitmap, *from=map2->bitmap, *end;
DBUG_ASSERT(map->bitmap && map2->bitmap &&
map->bitmap_size==map2->bitmap_size);
bitmap_lock(map);
bitmap_lock((MY_BITMAP *)map2);
end= to+map->bitmap_size;
while (to < end)
*to++ |= *from++;
bitmap_unlock((MY_BITMAP *)map2);
bzero(map->bitmap,(map->bitmap_size+7)/8);
bitmap_unlock(map);
}
sql/net_serv.cc
View file @ c45cfb7c
......@@ -14,13 +14,6 @@
along with this program; if not, write to the Free Software
Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA */
/*
This file is the net layer API for the MySQL client/server protocol,
which is a tightly coupled, proprietary protocol owned by MySQL AB.
Any re-implementations of this protocol must also be under GPL
unless one has got an license from MySQL AB stating otherwise.
*/
/*
Write and read of logical packets to/from socket
......@@ -33,10 +26,6 @@
C file.
*/
/*
HFTODO this must be hidden if we don't want client capabilities in
embedded library
*/
#ifdef __WIN__
#include <winsock.h>
#endif
......@@ -52,13 +41,6 @@
#include <signal.h>
#include <errno.h>
#ifdef EMBEDDED_LIBRARY
#undef MYSQL_SERVER
#undef MYSQL_CLIENT
#define MYSQL_CLIENT
#endif /*EMBEDDED_LIBRARY */
/*
The following handles the differences when this is linked between the
client and the server.
......@@ -84,15 +66,10 @@ void sql_print_error(const char *format,...);
#ifdef MYSQL_SERVER
#define USE_QUERY_CACHE
/*
The following variables/functions should really not be declared
extern, but as it's hard to include mysql_priv.h here, we have to
live with this for a while.
*/
extern uint test_flags;
extern void query_cache_insert(NET *net, const char *packet, ulong length);
extern ulong bytes_sent, bytes_received, net_big_packet_count;
extern pthread_mutex_t LOCK_bytes_sent , LOCK_bytes_received;
extern void query_cache_insert(NET *net, const char *packet, ulong length);
#else
#undef statistic_add
#undef statistic_increment
......@@ -108,7 +85,7 @@ static my_bool net_write_buff(NET *net,const char *packet,ulong len);
/* Init with packet info */
my_bool my_net_init(NET *net, Vio* vio)
int my_net_init(NET *net, Vio* vio)
{
DBUG_ENTER("my_net_init");
my_net_local_init(net); /* Set some limits */
......@@ -127,7 +104,6 @@ my_bool my_net_init(NET *net, Vio* vio)
net->where_b = net->remain_in_buf=0;
net->last_errno=0;
net->query_cache_query=0;
net->report_error= 0;
if (vio != 0) /* If real connection */
{
......@@ -156,7 +132,7 @@ void net_end(NET *net)
/* Realloc the packet buffer */
my_bool net_realloc(NET *net, ulong length)
static my_bool net_realloc(NET *net, ulong length)
{
uchar *buff;
ulong pkt_length;
......@@ -165,11 +141,10 @@ my_bool net_realloc(NET *net, ulong length)
if (length >= net->max_packet_size)
{
DBUG_PRINT("error", ("Packet too large. Max size: %lu",
net->max_packet_size));
net->error= 1;
net->report_error= 1;
net->last_errno= ER_NET_PACKET_TOO_LARGE;
DBUG_PRINT("error",("Packet too large. Max sixe: %lu",
net->max_packet_size));
net->error=1;
net->last_errno=ER_NET_PACKET_TOO_LARGE;
DBUG_RETURN(1);
}
pkt_length = (length+IO_SIZE-1) & ~(IO_SIZE-1);
......@@ -181,9 +156,10 @@ my_bool net_realloc(NET *net, ulong length)
NET_HEADER_SIZE + COMP_HEADER_SIZE,
MYF(MY_WME))))
{
net->error= 1;
net->report_error= 1;
net->last_errno= ER_OUT_OF_RESOURCES;
net->error=1;
#ifdef MYSQL_SERVER
net->last_errno=ER_OUT_OF_RESOURCES;
#endif
DBUG_RETURN(1);
}
net->buff=net->write_pos=buff;
......@@ -217,14 +193,14 @@ void net_clear(NET *net)
/* Flush write_buffer if not empty. */
my_bool net_flush(NET *net)
int net_flush(NET *net)
{
my_bool error= 0;
int error=0;
DBUG_ENTER("net_flush");
if (net->buff != net->write_pos)
{
error=test(net_real_write(net,(char*) net->buff,
(ulong) (net->write_pos - net->buff)));
error=net_real_write(net,(char*) net->buff,
(ulong) (net->write_pos - net->buff));
net->write_pos=net->buff;
}
/* Sync packet number if using compression */
......@@ -247,11 +223,11 @@ my_bool net_flush(NET *net)
If compression is used the original package is modified!
*/
my_bool
int
my_net_write(NET *net,const char *packet,ulong len)
{
uchar buff[NET_HEADER_SIZE];
if (unlikely(!net->vio)) /* nowhere to write */
if (unlikely(!net->vio)) /* nowhere to write */
return 0;
/*
Big packets are handled by splitting them in packets of MAX_PACKET_LENGTH
......@@ -274,46 +250,23 @@ my_net_write(NET *net,const char *packet,ulong len)
buff[3]= (uchar) net->pkt_nr++;
if (net_write_buff(net,(char*) buff,NET_HEADER_SIZE))
return 1;
#ifndef DEBUG_DATA_PACKETS
DBUG_DUMP("packet_header",(char*) buff,NET_HEADER_SIZE);
#endif
return test(net_write_buff(net,packet,len));
}
/*
Send a command to the server.
SYNOPSIS
net_write_command()
net NET handler
command Command in MySQL server (enum enum_server_command)
header Header to write after command
head_len Length of header
packet Query or parameter to query
len Length of packet
DESCRIPTION
The reason for having both header and packet is so that libmysql
can easy add a header to a special command (like prepared statements)
without having to re-alloc the string.
As the command is part of the first data packet, we have to do some data
juggling to put the command in there, without having to create a new
packet.
This function will split big packets into sub-packets if needed.
(Each sub packet can only be 2^24 bytes)
RETURN VALUES
0 ok
1 error
As the command is part of the first data packet, we have to do some data
juggling to put the command in there, without having to create a new
packet.
This function will split big packets into sub-packets if needed.
(Each sub packet can only be 2^24 bytes)
*/
my_bool
net_write_command(NET *net,uchar command,
const char *header, ulong head_len,
const char *packet, ulong len)
int
net_write_command(NET *net,uchar command,const char *packet,ulong len)
{
ulong length=len+1+head_len; /* 1 extra byte for command */
ulong length=len+1; /* 1 extra byte for command */
uchar buff[NET_HEADER_SIZE+1];
uint header_size=NET_HEADER_SIZE+1;
DBUG_ENTER("net_write_command");
......@@ -324,28 +277,25 @@ net_write_command(NET *net,uchar command,
if (length >= MAX_PACKET_LENGTH)
{
/* Take into account that we have the command in the first header */
len= MAX_PACKET_LENGTH - 1 - head_len;
len= MAX_PACKET_LENGTH -1;
do
{
int3store(buff, MAX_PACKET_LENGTH);
buff[3]= (uchar) net->pkt_nr++;
if (net_write_buff(net,(char*) buff, header_size) ||
net_write_buff(net, header, head_len) ||
net_write_buff(net, packet, len))
net_write_buff(net,packet,len))
DBUG_RETURN(1);
packet+= len;
length-= MAX_PACKET_LENGTH;
len= MAX_PACKET_LENGTH;
head_len= 0;
header_size= NET_HEADER_SIZE;
} while (length >= MAX_PACKET_LENGTH);
len=length; /* Data left to be written */
}
int3store(buff,length);
buff[3]= (uchar) net->pkt_nr++;
DBUG_RETURN(test(net_write_buff(net, (char*) buff, header_size) ||
(head_len && net_write_buff(net, (char*) header, head_len)) ||
net_write_buff(net, packet, len) || net_flush(net)));
DBUG_RETURN(test(net_write_buff(net,(char*) buff,header_size) ||
net_write_buff(net,packet,len) || net_flush(net)));
}
/*
......@@ -386,9 +336,6 @@ net_write_buff(NET *net,const char *packet,ulong len)
else
left_length= (ulong) (net->buff_end - net->write_pos);
#ifdef DEBUG_DATA_PACKETS
DBUG_DUMP("data", packet, len);
#endif
if (len > left_length)
{
if (net->write_pos != net->buff)
......@@ -464,12 +411,10 @@ net_real_write(NET *net,const char *packet,ulong len)
COMP_HEADER_SIZE, MYF(MY_WME))))
{
#ifdef MYSQL_SERVER
net->last_errno= ER_OUT_OF_RESOURCES;
net->error= 2;
/* TODO is it needed to set this variable if we have no socket */
net->report_error= 1;
net->last_errno=ER_OUT_OF_RESOURCES;
net->error=2;
#endif
net->reading_or_writing= 0;
net->reading_or_writing=0;
DBUG_RETURN(1);
}
memcpy(b+header_length,packet,len);
......@@ -516,10 +461,9 @@ net_real_write(NET *net,const char *packet,ulong len)
my_progname,vio_errno(net->vio));
#endif /* EXTRA_DEBUG */
#ifdef MYSQL_SERVER
net->last_errno= ER_NET_ERROR_ON_WRITE;
net->last_errno=ER_NET_ERROR_ON_WRITE;
#endif
net->error= 2; /* Close socket */
net->report_error= 1;
net->error=2; /* Close socket */
goto end;
}
retry_count=0;
......@@ -545,8 +489,7 @@ net_real_write(NET *net,const char *packet,ulong len)
continue;
}
#endif /* defined(THREAD_SAFE_CLIENT) && !defined(MYSQL_SERVER) */
net->error= 2; /* Close socket */
net->report_error= 1;
net->error=2; /* Close socket */
#ifdef MYSQL_SERVER
net->last_errno= (interrupted ? ER_NET_WRITE_INTERRUPTED :
ER_NET_ERROR_ON_WRITE);
......@@ -724,10 +667,9 @@ my_real_read(NET *net, ulong *complen)
my_progname,vio_errno(net->vio));
#endif /* EXTRA_DEBUG */
len= packet_error;
net->error= 2; /* Close socket */
net->report_error= 1;
net->error=2; /* Close socket */
#ifdef MYSQL_SERVER
net->last_errno= ER_NET_FCNTL_ERROR;
net->last_errno=ER_NET_FCNTL_ERROR;
#endif
goto end;
}
......@@ -756,8 +698,7 @@ my_real_read(NET *net, ulong *complen)
DBUG_PRINT("error",("Couldn't read packet: remain: %u errno: %d length: %ld",
remain, vio_errno(net->vio), length));
len= packet_error;
net->error= 2; /* Close socket */
net->report_error= 1;
net->error=2; /* Close socket */
#ifdef MYSQL_SERVER
net->last_errno= (interrupted ? ER_NET_READ_INTERRUPTED :
ER_NET_READ_ERROR);
......@@ -771,8 +712,6 @@ my_real_read(NET *net, ulong *complen)
if (i == 0)
{ /* First parts is packet length */
ulong helping;
DBUG_DUMP("packet_header",(char*) net->buff+net->where_b,
NET_HEADER_SIZE);
if (net->buff[net->where_b + 3] != (uchar) net->pkt_nr)
{
if (net->buff[net->where_b] != (uchar) 255)
......@@ -781,6 +720,7 @@ my_real_read(NET *net, ulong *complen)
("Packets out of order (Found: %d, expected %u)",
(int) net->buff[net->where_b + 3],
net->pkt_nr));
DBUG_DUMP("packet_header",(char*) net->buff+net->where_b, 4);
#ifdef EXTRA_DEBUG
fprintf(stderr,"Packets out of order (Found: %d, expected %d)\n",
(int) net->buff[net->where_b + 3],
......@@ -788,7 +728,6 @@ my_real_read(NET *net, ulong *complen)
#endif
}
len= packet_error;
net->report_error= 1;
#ifdef MYSQL_SERVER
net->last_errno=ER_NET_PACKETS_OUT_OF_ORDER;
#endif
......@@ -837,10 +776,6 @@ my_real_read(NET *net, ulong *complen)
vio_blocking(net->vio, net_blocking, &old_mode);
}
net->reading_or_writing=0;
#ifdef DEBUG_DATA_PACKETS
if (len != packet_error)
DBUG_DUMP("data",(char*) net->buff+net->where_b, len);
#endif
return(len);
}
......@@ -973,8 +908,7 @@ my_net_read(NET *net)
if (my_uncompress((byte*) net->buff + net->where_b, &packet_len,
&complen))
{
net->error= 2; /* caller will close socket */
net->report_error= 1;
net->error=2; /* caller will close socket */
#ifdef MYSQL_SERVER
net->last_errno=ER_NET_UNCOMPRESS_ERROR;
#endif
......@@ -995,3 +929,12 @@ my_net_read(NET *net)
return len;
}
bool net_request_file(NET* net, const char* fname)
{
char tmp [FN_REFLEN+1],*end;
DBUG_ENTER("net_request_file");
tmp[0] = (char) 251; /* NULL_LENGTH */
end=strnmov(tmp+1,fname,sizeof(tmp)-2);
DBUG_RETURN(my_net_write(net,tmp,(uint) (end-tmp)) ||
net_flush(net));
}
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