New improved IO_CACHE

BUILD/compile-solaris-sparc-debug

+#! /bin/sh
+
+gmake -k clean || true
+/bin/rm -f */.deps/*.P config.cache
+ 
+aclocal && autoheader && aclocal && automake && autoconf
+(cd bdb/dist && sh s_all)
+(cd innobase && aclocal && autoheader && aclocal && automake && autoconf)
+if [ -d gemini ]
+then
+   (cd gemini && aclocal && autoheader && aclocal && automake && autoconf)
+fi
+ 
+CFLAGS="-g -Wimplicit -Wreturn-type -Wid-clash-51 -Wswitch -Wtrigraphs -Wcomment -W -Wchar-subscripts -Wformat -Wimplicit-function-dec -Wimplicit-int -Wparentheses -Wsign-compare -Wwrite-strings -Wunused  -O3 -fno-omit-frame-pointer -mcpu=v8 -Wa,-xarch=v8plusa" CXX=gcc CXXFLAGS="-Wimplicit -Wreturn-type -Wid-clash-51 -Wswitch -Wtrigraphs -Wcomment -W -Wchar-subscripts -Wformat -Wimplicit-function-dec -Wimplicit-int -Wparentheses -Wsign-compare -Wwrite-strings -Woverloaded-virtual -Wextern-inline -Wsign-promo -Wreorder -Wctor-dtor-privacy -Wnon-virtual-dtor -felide-constructors -fno-exceptions -fno-rtti  -O3 -fno-omit-frame-pointer -mcpu=v8 -Wa,-xarch=v8plusa -g" ./configure --prefix=/usr/local/mysql --enable-assembler --with-extra-charsets=complex --enable-thread-safe-client --with-debug
+
+gmake -j 4

include/my_global.h

@@ -324,11 +324,6 @@ typedef unsigned short ushort;
 #endif
 
 #include <dbug.h>
-#ifndef DBUG_OFF
-#define dbug_assert(A) assert(A)
-#else
-#define dbug_assert(A)
-#endif
 
 #define MIN_ARRAY_SIZE	0	/* Zero or One. Gcc allows zero*/
 #define ASCII_BITS_USED 8	/* Bit char used */

include/my_sys.h

@@ -293,33 +293,21 @@ typedef struct st_dynamic_string {
 struct st_io_cache;
 typedef int (*IO_CACHE_CALLBACK)(struct st_io_cache*);
 
-#ifdef THREAD
-#define lock_append_buffer(info) \
- pthread_mutex_lock(&(info)->append_buffer_lock)
-#define unlock_append_buffer(info) \
- pthread_mutex_unlock(&(info)->append_buffer_lock)
-#else
-#define lock_append_buffer(info)
-#define unlock_append_buffer(info)
-#endif
 
 typedef struct st_io_cache		/* Used when cacheing files */
 {
   my_off_t pos_in_file,end_of_file;
-  byte	*rc_pos,*rc_end,*buffer,*rc_request_pos;
-  my_bool alloced_buffer; /* currented READ_NET is the only one
-			     that will use a buffer allocated somewhere
-			     else
-			   */
-  byte *append_buffer, *append_read_pos, *write_pos, *append_end,
-    *write_end;
-/* for append buffer used in READ_APPEND cache */
+  byte	*read_pos,*read_end,*buffer,*request_pos;
+  byte  *write_buffer, *append_read_pos, *write_pos, *write_end;
+  byte  **current_pos, **current_end;
+/* The lock is for append buffer used in READ_APPEND cache */
 #ifdef THREAD
   pthread_mutex_t append_buffer_lock;
   /* need mutex copying from append buffer to read buffer */
 #endif  
   int (*read_function)(struct st_io_cache *,byte *,uint);
   int (*write_function)(struct st_io_cache *,const byte *,uint);
+  enum cache_type type;
   /* callbacks when the actual read I/O happens */
   IO_CACHE_CALLBACK pre_read;
   IO_CACHE_CALLBACK post_read;
@@ -331,7 +319,11 @@ typedef struct st_io_cache		/* Used when cacheing files */
   int	seek_not_done,error;
   uint	buffer_length,read_length;
   myf	myflags;			/* Flags used to my_read/my_write */
-  enum cache_type type;
+ /*
+   Currently READ_NET is the only one that will use a buffer allocated
+   somewhere else
+ */
+  my_bool alloced_buffer;
 #ifdef HAVE_AIOWAIT
   uint inited;
   my_off_t aio_read_pos;
@@ -349,9 +341,9 @@ typedef int (*qsort2_cmp)(const void *, const void *, const void *);
 #define my_b_EOF INT_MIN
 
 #define my_b_read(info,Buffer,Count) \
-  ((info)->rc_pos + (Count) <= (info)->rc_end ?\
-   (memcpy(Buffer,(info)->rc_pos,(size_t) (Count)), \
-    ((info)->rc_pos+=(Count)),0) :\
+  ((info)->read_pos + (Count) <= (info)->read_end ?\
+   (memcpy(Buffer,(info)->read_pos,(size_t) (Count)), \
+    ((info)->read_pos+=(Count)),0) :\
    (*(info)->read_function)((info),Buffer,Count))
 
 #define my_b_write(info,Buffer,Count) \
@@ -362,11 +354,10 @@ typedef int (*qsort2_cmp)(const void *, const void *, const void *);
  
 
 #define my_b_get(info) \
-  ((info)->rc_pos != (info)->rc_end ?\
-   ((info)->rc_pos++, (int) (uchar) (info)->rc_pos[-1]) :\
+  ((info)->read_pos != (info)->read_end ?\
+   ((info)->read_pos++, (int) (uchar) (info)->read_pos[-1]) :\
    _my_b_get(info))
 
-
 	/* my_b_write_byte dosn't have any err-check */
 #define my_b_write_byte(info,chr) \
   (((info)->write_pos < (info)->write_end) ?\
@@ -374,18 +365,14 @@ typedef int (*qsort2_cmp)(const void *, const void *, const void *);
    (_my_b_write(info,0,0) , ((*(info)->write_pos++)=(chr))))
 
 #define my_b_fill_cache(info) \
-  (((info)->rc_end=(info)->rc_pos),(*(info)->read_function)(info,0,0))
-
-#define my_write_cache(info) (((info)->type == WRITE_CACHE))
-#define my_cache_pointer(info)  (my_write_cache(info) ? \
-               ((info)->write_pos) : ((info)->rc_pos))
+  (((info)->read_end=(info)->read_pos),(*(info)->read_function)(info,0,0))
 
 #define my_b_tell(info) ((info)->pos_in_file + \
-			 my_cache_pointer(info) - (info)->rc_request_pos)
+			 (uint) (*(info)->current_pos - (info)->request_pos))
+
+#define my_b_bytes_in_cache(info) (uint) (*(info)->current_end - \
+					  *(info)->current_pos)
 
-#define my_b_bytes_in_cache(info) (my_write_cache(info) ? \
- ((uint) ((info)->write_end - (info)->write_pos)): \
- ((uint) ((info)->rc_end - (info)->rc_pos)))
 
 typedef struct st_changeable_var {
   const char *name;			/* Name of variable */
@@ -584,7 +571,7 @@ extern int _my_b_net_read(IO_CACHE *info,byte *Buffer,uint Count);
 extern int _my_b_get(IO_CACHE *info);
 extern int _my_b_async_read(IO_CACHE *info,byte *Buffer,uint Count);
 extern int _my_b_write(IO_CACHE *info,const byte *Buffer,uint Count);
-extern int _my_b_append(IO_CACHE *info,const byte *Buffer,uint Count);
+extern int my_b_append(IO_CACHE *info,const byte *Buffer,uint Count);
 extern int my_block_write(IO_CACHE *info, const byte *Buffer,
 			  uint Count, my_off_t pos);
 extern int flush_io_cache(IO_CACHE *info);

isam/_cache.c

@@ -46,11 +46,11 @@ int _nisam_read_cache(IO_CACHE *info, byte *buff, ulong pos, uint length,
     buff+=read_length;
   }
   if ((offset=pos - (ulong) info->pos_in_file) <
-      (ulong) (info->rc_end - info->rc_request_pos))
+      (ulong) (info->read_end - info->request_pos))
   {
-    in_buff_pos=info->rc_request_pos+(uint) offset;
-    in_buff_length= min(length,(uint) (info->rc_end-in_buff_pos));
-    memcpy(buff,info->rc_request_pos+(uint) offset,(size_t) in_buff_length);
+    in_buff_pos=info->request_pos+(uint) offset;
+    in_buff_length= min(length,(uint) (info->read_end-in_buff_pos));
+    memcpy(buff,info->request_pos+(uint) offset,(size_t) in_buff_length);
     if (!(length-=in_buff_length))
       return 0;
     pos+=in_buff_length;
@@ -61,14 +61,14 @@ int _nisam_read_cache(IO_CACHE *info, byte *buff, ulong pos, uint length,
   if (flag & READING_NEXT)
   {
     if (pos != ((info)->pos_in_file +
-		(uint) ((info)->rc_end - (info)->rc_request_pos)))
+		(uint) ((info)->read_end - (info)->request_pos)))
     {
       info->pos_in_file=pos;				/* Force start here */
-      info->rc_pos=info->rc_end=info->rc_request_pos;	/* Everything used */
+      info->read_pos=info->read_end=info->request_pos;	/* Everything used */
       info->seek_not_done=1;
     }
     else
-      info->rc_pos=info->rc_end;			/* All block used */
+      info->read_pos=info->read_end;			/* All block used */
     if (!(*info->read_function)(info,buff,length))
       return 0;
     if (!(flag & READING_HEADER) || info->error == -1 ||

isam/_statrec.c

@@ -187,7 +187,7 @@ int _nisam_read_rnd_static_record(N_INFO *info, byte *buf,
 	(skipp_deleted_blocks || !filepos))
     {
       cache_read=1;				/* Read record using cache */
-      cache_length=(uint) (info->rec_cache.rc_end - info->rec_cache.rc_pos);
+      cache_length=(uint) (info->rec_cache.read_end - info->rec_cache.read_pos);
     }
     else
       info->rec_cache.seek_not_done=1;		/* Filepos is changed */

isam/test3.c

@@ -172,7 +172,7 @@ void start_test(int id)
   }
   if (key_cacheing && rnd(2) == 0)
     init_key_cache(65536L,(uint) IO_SIZE*4*10);
-  printf("Process %d, pid: %d\n",id,getpid()); fflush(stdout);
+  printf("Process %d, pid: %d\n",id,(int) getpid()); fflush(stdout);
 
   for (error=i=0 ; i < tests && !error; i++)
   {
@@ -356,7 +356,7 @@ int test_write(N_INFO *file,int id,int lock_type)
       nisam_extra(file,HA_EXTRA_WRITE_CACHE);
   }
 
-  sprintf(record.id,"%7d",getpid());
+  sprintf(record.id,"%7d",(int) getpid());
   strmov(record.text,"Testing...");
 
   tries=(uint) rnd(100)+10;

myisam/mi_cache.c

@@ -45,11 +45,11 @@ int _mi_read_cache(IO_CACHE *info, byte *buff, my_off_t pos, uint length,
     buff+=read_length;
   }
   if ((offset= (my_off_t) (pos - info->pos_in_file)) <
-      (my_off_t) (info->rc_end - info->rc_request_pos))
+      (my_off_t) (info->read_end - info->request_pos))
   {
-    in_buff_pos=info->rc_request_pos+(uint) offset;
-    in_buff_length= min(length,(uint) (info->rc_end-in_buff_pos));
-    memcpy(buff,info->rc_request_pos+(uint) offset,(size_t) in_buff_length);
+    in_buff_pos=info->request_pos+(uint) offset;
+    in_buff_length= min(length,(uint) (info->read_end-in_buff_pos));
+    memcpy(buff,info->request_pos+(uint) offset,(size_t) in_buff_length);
     if (!(length-=in_buff_length))
       DBUG_RETURN(0);
     pos+=in_buff_length;
@@ -60,14 +60,14 @@ int _mi_read_cache(IO_CACHE *info, byte *buff, my_off_t pos, uint length,
   if (flag & READING_NEXT)
   {
     if (pos != ((info)->pos_in_file +
-		(uint) ((info)->rc_end - (info)->rc_request_pos)))
+		(uint) ((info)->read_end - (info)->request_pos)))
     {
       info->pos_in_file=pos;				/* Force start here */
-      info->rc_pos=info->rc_end=info->rc_request_pos;	/* Everything used */
+      info->read_pos=info->read_end=info->request_pos;	/* Everything used */
       info->seek_not_done=1;
     }
     else
-      info->rc_pos=info->rc_end;			/* All block used */
+      info->read_pos=info->read_end;			/* All block used */
     if (!(*info->read_function)(info,buff,length))
       DBUG_RETURN(0);
     if (!(flag & READING_HEADER) || info->error == -1 ||

myisam/mi_statrec.c

@@ -221,7 +221,7 @@ int _mi_read_rnd_static_record(MI_INFO *info, byte *buf,
 	(skipp_deleted_blocks || !filepos))
     {
       cache_read=1;				/* Read record using cache */
-      cache_length=(uint) (info->rec_cache.rc_end - info->rec_cache.rc_pos);
+      cache_length=(uint) (info->rec_cache.read_end - info->rec_cache.read_pos);
     }
     else
       info->rec_cache.seek_not_done=1;		/* Filepos is changed */

mysql-test/mysql-test-run.sh

@@ -19,7 +19,7 @@ TZ=GMT-3; export TZ # for UNIX_TIMESTAMP tests to work
 # Program Definitions
 #--
 
-PATH=/bin:/usr/bin:/usr/local/bin:/usr/bsd:/usr/X11R6/bin
+PATH=/bin:/usr/bin:/usr/local/bin:/usr/bsd:/usr/X11R6/bin:/usr/openwin/bin
 
 # Standard functions
 
@@ -49,6 +49,7 @@ BASENAME=`which basename | head -1`
 DIFF=`which diff | head -1`
 CAT=cat
 CUT=cut
+HEAD=head
 TAIL=tail
 ECHO=echo # use internal echo if possible
 EXPR=expr # use internal if possible
@@ -118,7 +119,7 @@ MYSQLD_SRC_DIRS="strings mysys include extra regex isam merge myisam \
 #
 # Set LD_LIBRARY_PATH if we are using shared libraries
 #
-LD_LIBRARY_PATH="$BASEDIR/lib:$LD_LIBRARY_PATH"
+LD_LIBRARY_PATH="$BASEDIR/lib:$BASEDIR/libmysql/.libs:$LD_LIBRARY_PATH"
 export LD_LIBRARY_PATH
 
 MASTER_RUNNING=0
@@ -225,6 +226,8 @@ while test $# -gt 0; do
 	$ECHO "Note: you will get more meaningful output on a source distribution compiled with debugging option when running tests with --gdb option"
       fi
       DO_GDB=1
+      # We must use manager, as things doesn't work on Linux without it
+      USE_MANAGER=1
       USE_RUNNING_SERVER=""
       ;;
     --client-gdb )
@@ -310,6 +313,8 @@ if [ x$SOURCE_DIST = x1 ] ; then
  MYSQLD="$BASEDIR/sql/mysqld"
  if [ -f "$BASEDIR/client/.libs/lt-mysqltest" ] ; then
    MYSQL_TEST="$BASEDIR/client/.libs/lt-mysqltest"
+ elif [ -f "$BASEDIR/client/.libs/mysqltest" ] ; then
+   MYSQL_TEST="$BASEDIR/client/.libs/mysqltest"
  else
    MYSQL_TEST="$BASEDIR/client/mysqltest"
  fi
@@ -428,7 +433,7 @@ do_gdb_test ()
   $ECHO "set args $mysql_test_args < $2" > $GDB_CLIENT_INIT
   echo "Set breakpoints ( if needed) and type 'run' in gdb window"
   #this xterm should not be backgrounded
-  xterm -title "Client" -e gdb -x $GDB_CLIENT_INIT $MYSQL_TEST_BIN
+  $XTERM -title "Client" -e gdb -x $GDB_CLIENT_INIT $MYSQL_TEST_BIN
 }
 
 error () {
@@ -437,7 +442,7 @@ error () {
 }
 
 error_is () {
-    $TR "\n" " " < $TIMEFILE | $SED -e 's/.* At line \(.*\)\: \(.*\)Command .*$/   \>\> Error at line \1: \2<\</'
+    $CAT < $TIMEFILE | $SED -e 's/.* At line \(.*\)\: \(.*\)/   \>\> Error at line \1: \2<\</' | $HEAD -1
 }
 
 prefix_to_8() {
@@ -802,8 +807,8 @@ start_slave()
     elif [ x$DO_GDB = x1 ]
     then
       $ECHO "set args $slave_args" > $GDB_SLAVE_INIT
-      manager_launch $slave_ident $XTERM -display $DISPLAY -title "Slave" -e gdb -x \
-       $GDB_SLAVE_INIT $SLAVE_MYSQLD 
+      manager_launch $slave_ident $XTERM -display $DISPLAY -title "Slave" -e \
+      gdb -x $GDB_SLAVE_INIT $SLAVE_MYSQLD 
     else
       manager_launch $slave_ident $SLAVE_MYSQLD $slave_args
     fi

mysql-test/r/isam.result

 drop table if exists t1,t2;
-create table t1 (a tinyint not null auto_increment, b blob not null, primary key (a));
-check table t1;
-Table	Op	Msg_type	Msg_text
-test.t1	check	status	OK
-repair table t1;
-Table	Op	Msg_type	Msg_text
-test.t1	repair	status	OK
+create table t1 (a tinyint not null auto_increment, b blob not null, primary key (a)) type=isam;
 delete from t1 where (a & 1);
-check table t1;
-Table	Op	Msg_type	Msg_text
-test.t1	check	status	OK
-repair table t1;
-Table	Op	Msg_type	Msg_text
-test.t1	repair	status	OK
-check table t1;
-Table	Op	Msg_type	Msg_text
-test.t1	check	status	OK
+select sum(length(b)) from t1;
+sum(length(b))
+3274494
 drop table t1;
 create table t1 (a int not null auto_increment,b int, primary key (a)) type=isam;
 insert into t1 values (1,1),(NULL,2),(3,3),(NULL,4);

mysql-test/t/isam.test

@@ -6,7 +6,7 @@ drop table if exists t1,t2;
 # Test possible problem with rows that are about 65535 bytes long
 #
 
-create table t1 (a tinyint not null auto_increment, b blob not null, primary key (a));
+create table t1 (a tinyint not null auto_increment, b blob not null, primary key (a)) type=isam;
 
 let $1=100;
 disable_query_log;
@@ -16,12 +16,8 @@ while ($1)
   dec $1;
 }
 enable_query_log;
-check table t1;
-repair table t1;
 delete from t1 where (a & 1);
-check table t1;
-repair table t1;
-check table t1;
+select sum(length(b)) from t1;
 drop table t1;
 
 #

mysys/mf_iocache2.c

@@ -26,22 +26,42 @@
 #include <m_ctype.h>
 
 /*
-** Fix that next read will be made at certain position
-** For write cache, make next write happen at a certain position
+  Fix that next read will be made at certain position
+  For write cache, make next write happen at a certain position
 */
 
 void my_b_seek(IO_CACHE *info,my_off_t pos)
 {
+  DBUG_ENTER("my_b_seek");
+  DBUG_PRINT("enter",("pos: %lu", (ulong) pos));
+
   if (info->type == READ_CACHE)
   {
-    info->rc_pos=info->rc_end=info->buffer;
+    byte* try_pos=info->read_pos + (pos - info->pos_in_file);
+    if (try_pos >= info->buffer &&
+	try_pos <= info->read_end)
+    {
+      /* The position is in the current buffer; Reuse it */
+      info->read_pos = try_pos;
+      DBUG_VOID_RETURN;
+    }
+    else
+    {
+      /* Force a new read on next my_b_read */
+      info->read_pos=info->read_end=info->buffer;
+    }
   }
   else if (info->type == WRITE_CACHE)
   {
-    byte* try_write_pos;
-    try_write_pos = info->write_pos + (pos - info->pos_in_file);
-    if (try_write_pos >= info->buffer && try_write_pos <= info->write_end)
-      info->write_pos = try_write_pos;
+    byte* try_pos;
+    /* If write is in current buffer, reuse it */
+    try_pos = info->write_pos + (pos - info->pos_in_file);
+    if (try_pos >= info->write_buffer &&
+	try_pos <= info->write_end)
+    {
+      info->write_pos = try_pos;
+      DBUG_VOID_RETURN;
+    }
     else
       flush_io_cache(info);
   }
@@ -51,14 +71,15 @@ void my_b_seek(IO_CACHE *info,my_off_t pos)
 
 /*
 **  Fill buffer.  Note that this assumes that you have already used
-**  all characters in the CACHE, independent of the rc_pos value!
+**  all characters in the CACHE, independent of the read_pos value!
 **  return:  0 on error or EOF (info->error = -1 on error)
 **           number of characters
 */
 
 uint my_b_fill(IO_CACHE *info)
 {
-  my_off_t pos_in_file=info->pos_in_file+(uint) (info->rc_end - info->buffer);
+  my_off_t pos_in_file=(info->pos_in_file+
+			(uint) (info->read_end - info->buffer));
   my_off_t max_length;
   uint diff_length,length;
   if (info->seek_not_done)
@@ -86,8 +107,8 @@ uint my_b_fill(IO_CACHE *info)
     info->error= -1;
     return 0;
   }
-  info->rc_pos=info->buffer;
-  info->rc_end=info->buffer+length;
+  info->read_pos=info->buffer;
+  info->read_end=info->buffer+length;
   info->pos_in_file=pos_in_file;
   return length;
 }
@@ -113,11 +134,11 @@ uint my_b_gets(IO_CACHE *info, char *to, uint max_length)
     char *pos,*end;
     if (length > max_length)
       length=max_length;
-    for (pos=info->rc_pos,end=pos+length ; pos < end ;)
+    for (pos=info->read_pos,end=pos+length ; pos < end ;)
     {
       if ((*to++ = *pos++) == '\n')
       {
-	info->rc_pos=pos;
+	info->read_pos=pos;
 	*to='\0';
 	return (uint) (to-start);
       }
@@ -125,7 +146,7 @@ uint my_b_gets(IO_CACHE *info, char *to, uint max_length)
     if (!(max_length-=length))
     {
      /* Found enough charcters;  Return found string */
-      info->rc_pos=pos;
+      info->read_pos=pos;
       *to='\0';
       return (uint) (to-start);
     }

mysys/my_alloc.c

@@ -20,9 +20,11 @@
 #include <my_global.h>
 #include <my_sys.h>
 #include <m_string.h>
+#undef EXTRA_DEBUG
 #define EXTRA_DEBUG
 
-void init_alloc_root(MEM_ROOT *mem_root, uint block_size, uint pre_alloc_size)
+void init_alloc_root(MEM_ROOT *mem_root, uint block_size,
+		     uint pre_alloc_size __attribute__((unused)))
 {
   mem_root->free=mem_root->used=0;
   mem_root->min_malloc=32;

mysys/my_bitmap.c

@@ -32,7 +32,7 @@ my_bool bitmap_init(MY_BITMAP *map, uint bitmap_size)
   if (!(map->bitmap=(uchar*) my_malloc((bitmap_size+7)/8,
 				       MYF(MY_WME | MY_ZEROFILL))))
     return 1;
-  dbug_assert(bitmap_size != ~(uint) 0);
+  DBUG_ASSERT(bitmap_size != ~(uint) 0);
 #ifdef THREAD
   pthread_mutex_init(&map->mutex, MY_MUTEX_INIT_FAST);
 #endif

mysys/my_pthread.c

@@ -424,7 +424,7 @@ struct hostent *my_gethostbyname_r(const char *name,
 				   int buflen, int *h_errnop)
 {
   struct hostent *hp;
-  dbug_assert((size_t) buflen >= sizeof(*result));
+  DBUG_ASSERT((size_t) buflen >= sizeof(*result));
   if (gethostbyname_r(name,result, buffer, (size_t) buflen, &hp, h_errnop))
     return 0;
   return hp;
@@ -436,7 +436,7 @@ struct hostent *my_gethostbyname_r(const char *name,
 				   struct hostent *result, char *buffer,
 				   int buflen, int *h_errnop)
 {
-  dbug_assert(buflen >= sizeof(struct hostent_data));
+  DBUG_ASSERT(buflen >= sizeof(struct hostent_data));
   if (gethostbyname_r(name,result,(struct hostent_data *) buffer) == -1)
   {
     *h_errnop= errno;
@@ -452,7 +452,7 @@ struct hostent *my_gethostbyname_r(const char *name,
 				   int buflen, int *h_errnop)
 {
   struct hostent *hp;
-  dbug_assert(buflen >= sizeof(struct hostent_data));
+  DBUG_ASSERT(buflen >= sizeof(struct hostent_data));
   hp= gethostbyname_r(name,result,(struct hostent_data *) buffer);
   *h_errnop= errno;
   return hp;

mysys/my_seek.c

@@ -26,7 +26,8 @@ my_off_t my_seek(File fd, my_off_t pos, int whence,
   reg1 os_off_t newpos;
   DBUG_ENTER("my_seek");
   DBUG_PRINT("my",("Fd: %d  Hpos: %lu  Pos: %lu  Whence: %d  MyFlags: %d",
-		   fd, ((ulonglong) pos) >> 32, (ulong) pos, whence, MyFlags));
+		   fd, (ulong) (((ulonglong) pos) >> 32), (ulong) pos, 
+		   whence, MyFlags));
   newpos=lseek(fd, pos, whence);
   if (newpos == (os_off_t) -1)
   {
@@ -34,6 +35,10 @@ my_off_t my_seek(File fd, my_off_t pos, int whence,
     DBUG_PRINT("error",("lseek: %lu, errno: %d",newpos,errno));
     DBUG_RETURN(MY_FILEPOS_ERROR);
   }
+  if (newpos != pos)
+  {
+    DBUG_PRINT("exit",("pos: %lu", (ulong) newpos));
+  }
   DBUG_RETURN((my_off_t) newpos);
 } /* my_seek */
 
@@ -53,6 +58,6 @@ my_off_t my_tell(File fd, myf MyFlags __attribute__((unused)))
 #endif
   if (pos == (os_off_t) -1)
     my_errno=errno;
-  DBUG_PRINT("exit",("pos: %lu",pos));
+  DBUG_PRINT("exit",("pos: %lu", (ulong) pos));
   DBUG_RETURN((my_off_t) pos);
 } /* my_tell */

sql/ha_berkeley.cc

@@ -1045,7 +1045,7 @@ int ha_berkeley::restore_keys(DB_TXN *trans, key_map changed_keys,
   }
   
 err:
-  dbug_assert(error != DB_KEYEXIST);
+  DBUG_ASSERT(error != DB_KEYEXIST);
   DBUG_RETURN(error);
 }
 
@@ -1187,7 +1187,7 @@ int ha_berkeley::remove_key(DB_TXN *trans, uint keynr, const byte *record,
 	   ((table->key_info[keynr].flags & (HA_NOSAME | HA_NULL_PART_KEY)) ==
 	    HA_NOSAME))
   {						// Unique key
-    dbug_assert(keynr == primary_key || prim_key->data != key_buff2);
+    DBUG_ASSERT(keynr == primary_key || prim_key->data != key_buff2);
     error=key_file[keynr]->del(key_file[keynr], trans,
 			       keynr == primary_key ?
 			       prim_key :
@@ -1201,7 +1201,7 @@ int ha_berkeley::remove_key(DB_TXN *trans, uint keynr, const byte *record,
       row to find the key to be delete and delete it.
       We will never come here with keynr = primary_key
     */
-    dbug_assert(keynr != primary_key && prim_key->data != key_buff2);
+    DBUG_ASSERT(keynr != primary_key && prim_key->data != key_buff2);
     DBC *tmp_cursor;
     if (!(error=key_file[keynr]->cursor(key_file[keynr], trans,
 					&tmp_cursor, 0)))

sql/ha_innobase.cc

@@ -196,7 +196,7 @@ convert_error_code_to_mysql(
 
     		return(HA_ERR_TO_BIG_ROW);
     	} else {
-    		dbug_assert(0);
+    		DBUG_ASSERT(0);
 
     		return(-1);			// Unknown error
     	}
@@ -259,7 +259,7 @@ check_trx_exists(
 	trx = (trx_t*) thd->transaction.all.innobase_tid;
 
 	if (trx == NULL) {
-	        dbug_assert(thd != NULL);
+	        DBUG_ASSERT(thd != NULL);
 		trx = trx_allocate_for_mysql();
 
 		trx->mysql_thd = thd;
@@ -852,7 +852,7 @@ normalize_table_name(
 
 	name_ptr = ptr + 1;
 
-	dbug_assert(ptr > name);
+	DBUG_ASSERT(ptr > name);
 
 	ptr--;
 
@@ -975,7 +975,7 @@ ha_innobase::open(
 
   		ref_length = DATA_ROW_ID_LEN + 10;
 				
-		dbug_assert(key_used_on_scan == MAX_KEY);
+		DBUG_ASSERT(key_used_on_scan == MAX_KEY);
 	}
 
 	auto_inc_counter_for_this_stat = 0;
@@ -1119,8 +1119,8 @@ innobase_mysql_cmp(
 	enum_field_types	mysql_tp;
 	int                     ret;
 
-	dbug_assert(a_length != UNIV_SQL_NULL);
-	dbug_assert(b_length != UNIV_SQL_NULL);
+	DBUG_ASSERT(a_length != UNIV_SQL_NULL);
+	DBUG_ASSERT(b_length != UNIV_SQL_NULL);
 
 	mysql_tp = (enum_field_types) mysql_type;
 
@@ -1158,11 +1158,11 @@ get_innobase_type_from_mysql_type(
 	8 bits: this is used in ibuf and also when DATA_NOT_NULL is
 	ORed to the type */
 
-	dbug_assert((ulint)FIELD_TYPE_STRING < 256);
-	dbug_assert((ulint)FIELD_TYPE_VAR_STRING < 256);
-	dbug_assert((ulint)FIELD_TYPE_DOUBLE < 256);
-	dbug_assert((ulint)FIELD_TYPE_FLOAT < 256);
-	dbug_assert((ulint)FIELD_TYPE_DECIMAL < 256);
+	DBUG_ASSERT((ulint)FIELD_TYPE_STRING < 256);
+	DBUG_ASSERT((ulint)FIELD_TYPE_VAR_STRING < 256);
+	DBUG_ASSERT((ulint)FIELD_TYPE_DOUBLE < 256);
+	DBUG_ASSERT((ulint)FIELD_TYPE_FLOAT < 256);
+	DBUG_ASSERT((ulint)FIELD_TYPE_DECIMAL < 256);
 
 	switch (field->type()) {
 		case FIELD_TYPE_VAR_STRING: if (field->flags & BINARY_FLAG) {
@@ -2368,7 +2368,7 @@ ha_innobase::position(
 		len = store_key_val_for_row(primary_key, (char*) ref, record);
 	}
 
-	dbug_assert(len <= ref_length);
+	DBUG_ASSERT(len <= ref_length);
 
 	ref_stored_len = len;
 }

sql/log.cc

@@ -774,13 +774,13 @@ bool MYSQL_LOG::write(IO_CACHE *cache)
     length=my_b_bytes_in_cache(cache);
     do
     {
-      if (my_b_write(&log_file, cache->rc_pos, length))
+      if (my_b_write(&log_file, cache->read_pos, length))
       {
 	if (!write_error)
 	  sql_print_error(ER(ER_ERROR_ON_WRITE), name, errno);
 	goto err;
       }
-      cache->rc_pos=cache->rc_end;		// Mark buffer used up
+      cache->read_pos=cache->read_end;		// Mark buffer used up
     } while ((length=my_b_fill(cache)));
     if (flush_io_cache(&log_file))
     {

sql/mf_iocache.cc

@@ -52,26 +52,32 @@ int _my_b_net_read(register IO_CACHE *info, byte *Buffer,
 {
   int read_length;
   NET *net= &(current_thd)->net;
+  DBUG_ENTER("_my_b_net_read");
 
-  if (info->end_of_file)
-    return 1;		/* because my_b_get (no _) takes 1 byte at a time */
+  if (!info->end_of_file)
+    DBUG_RETURN(1);	/* because my_b_get (no _) takes 1 byte at a time */
   read_length=my_net_read(net);
   if (read_length == (int) packet_error)
   {
     info->error= -1;
-    return 1;
+    DBUG_RETURN(1);
   }
   if (read_length == 0)
   {
-    /* End of file from client */
-    info->end_of_file = 1; return 1;
+    info->end_of_file= 0;			/* End of file from client */
+    DBUG_RETURN(1);
   }
   /* to set up stuff for my_b_get (no _) */
-  info->rc_end = (info->rc_pos = (byte*) net->read_pos) + read_length;
-  Buffer[0] = info->rc_pos[0];			/* length is always 1 */
-  info->rc_pos++;
-  info->buffer = info->rc_pos;
-  return 0;
+  info->read_end = (info->read_pos = (byte*) net->read_pos) + read_length;
+  Buffer[0] = info->read_pos[0];		/* length is always 1 */
+  info->read_pos++;
+
+  /*
+    info->request_pos is used by log_loaded_block() to know the size
+    of the current block
+  */
+  info->request_pos=info->read_pos;
+  DBUG_RETURN(0);
 }
 
 } /* extern "C" */

sql/opt_range.cc

@@ -2614,7 +2614,7 @@ int QUICK_SELECT_DESC::get_next()
     }
     else
     {
-      dbug_assert(range->flag & NEAR_MAX || range_reads_after_key(range));
+      DBUG_ASSERT(range->flag & NEAR_MAX || range_reads_after_key(range));
       /* Note: even if max_key is only a prefix, HA_READ_AFTER_KEY will
        * do the right thing - go past all keys which match the prefix */
       result=file->index_read(record, (byte*) range->max_key,

sql/sql_base.cc

@@ -882,7 +882,7 @@ TABLE *open_table(THD *thd,const char *db,const char *table_name,
   table->outer_join=table->null_row=table->maybe_null=0;
   table->status=STATUS_NO_RECORD;
   table->keys_in_use_for_query=table->used_keys= table->keys_in_use;
-  dbug_assert(table->key_read == 0);
+  DBUG_ASSERT(table->key_read == 0);
   DBUG_RETURN(table);
 }
 

sql/sql_handler.cc

@@ -126,7 +126,7 @@ int mysql_ha_read(THD *thd, TABLE_LIST *tables,
          mode=RNEXT;
          break;
       case RLAST:
-         dbug_assert(keyname != 0);
+         DBUG_ASSERT(keyname != 0);
          err=table->file->index_last(table->record[0]);
          mode=RPREV;
          break;
@@ -136,12 +136,12 @@ int mysql_ha_read(THD *thd, TABLE_LIST *tables,
              table->file->rnd_next(table->record[0]);
          break;
       case RPREV:
-         dbug_assert(keyname != 0);
+         DBUG_ASSERT(keyname != 0);
          err=table->file->index_prev(table->record[0]);
          break;
       case RKEY:
         {
-          dbug_assert(keyname != 0);
+          DBUG_ASSERT(keyname != 0);
           KEY *keyinfo=table->key_info+keyno;
 	  KEY_PART_INFO *key_part=keyinfo->key_part;
           uint key_len;

sql/sql_load.cc

@@ -551,7 +551,7 @@ READ_INFO::READ_INFO(File file_par, uint tot_length, String &field_term,
       need_end_io_cache = 1;
       if (!opt_old_rpl_compat && mysql_bin_log.is_open())
 	cache.pre_read = cache.pre_close =
-	  (IO_CACHE_CALLBACK)log_loaded_block;
+	  (IO_CACHE_CALLBACK) log_loaded_block;
     }
   }
 }

sql/sql_parse.cc

@@ -288,7 +288,7 @@ static void decrease_user_connections(const char *user, const char *host)
 
   uc = (struct  user_conn *) hash_search(&hash_user_connections,
 					 (byte*) temp_user, temp_len);
-  dbug_assert(uc != 0);			// We should always find the user
+  DBUG_ASSERT(uc != 0);			// We should always find the user
   if (!uc)
     goto end;				// Safety; Something went wrong
   if (! --uc->connections)

sql/sql_repl.cc

@@ -137,7 +137,7 @@ File open_binlog(IO_CACHE *log, const char *log_file_name,
 
   if ((file = my_open(log_file_name, O_RDONLY | O_BINARY, MYF(MY_WME))) < 0 ||
       init_io_cache(log, file, IO_SIZE*2, READ_CACHE, 0, 0,
-		    MYF(MY_WME)))
+		    MYF(MY_WME | MY_DONT_CHECK_FILESIZE)))
   {
     *errmsg = "Could not open log file";	// This will not be sent
     goto err;
@@ -1024,8 +1024,10 @@ int log_loaded_block(IO_CACHE* file)
 {
   LOAD_FILE_INFO* lf_info;
   uint block_len ;
-  char* buffer = (char*)file->buffer;
-  if (!(block_len = file->rc_end - buffer))
+
+  /* file->request_pos contains position where we started last read */
+  char* buffer = (char*) file->request_pos;
+  if (!(block_len = file->read_end - buffer))
     return 0;
   lf_info = (LOAD_FILE_INFO*)file->arg;
   if (lf_info->last_pos_in_file != HA_POS_ERROR &&

sql/sql_select.cc

@@ -2680,7 +2680,7 @@ eq_ref_table(JOIN *join, ORDER *start_order, JOIN_TAB *tab)
       if (order)
       {
 	found++;
-	dbug_assert(!(order->used & map));
+	DBUG_ASSERT(!(order->used & map));
 	order->used|=map;
 	continue;				// Used in ORDER BY
       }

tools/mysqlmanager.c

@@ -1687,7 +1687,7 @@ static void init_pid_file()
   if (!fp)
     die("Could not open pid file %s", pid_file);
   created_pid_file=1;
-  fprintf(fp, "%d\n", getpid());
+  fprintf(fp, "%d\n", (int) getpid());
   fclose(fp);
 }