merge w/ 5.1

client/mysqltest.cc

@@ -610,14 +610,14 @@ public:
     lines++;
 
     int show_offset= 0;
-    char buf[256];
+    char buf[256+1];                   /* + zero termination for DBUG_PRINT */
     size_t bytes;
     bool found_bof= false;
 
     /* Search backward in file until "lines" newline has been found */
     while (lines && !found_bof)
     {
-      show_offset-= sizeof(buf);
+      show_offset-= sizeof(buf)-1;
       while(fseek(m_file, show_offset, SEEK_END) != 0 && show_offset < 0)
       {
         found_bof= true;
@@ -625,7 +625,7 @@ public:
         show_offset++;
       }
 
-      if ((bytes= fread(buf, 1, sizeof(buf), m_file)) <= 0)
+      if ((bytes= fread(buf, 1, sizeof(buf)-1, m_file)) <= 0)
       {
 	// ferror=0 will happen here if no queries executed yet
 	if (ferror(m_file))
@@ -635,6 +635,7 @@ public:
         DBUG_VOID_RETURN;
       }
 
+      IF_DBUG(buf[bytes]= '\0';)
       DBUG_PRINT("info", ("Read %lu bytes from file, buf: %s",
                           (unsigned long)bytes, buf));
 
@@ -679,8 +680,8 @@ public:
       }
     }
 
-    while ((bytes= fread(buf, 1, sizeof(buf), m_file)) > 0)
-      if (fwrite(buf, 1, bytes, stderr))
+    while ((bytes= fread(buf, 1, sizeof(buf)-1, m_file)) > 0)
+      if (bytes != fwrite(buf, 1, bytes, stderr))
         die("Failed to write to '%s', errno: %d",
             m_file_name, errno);
 
@@ -723,6 +724,10 @@ void handle_no_error(struct st_command*);
 
 #ifdef EMBEDDED_LIBRARY
 
+/* workaround for MySQL BUG#57491 */
+#undef MY_WME
+#define MY_WME 0
+
 /* attributes of the query thread */
 pthread_attr_t cn_thd_attrib;
 

include/keycache.h

@@ -46,6 +46,7 @@ typedef struct st_key_cache_statistics
   ulonglong blocks_used;    /* maximum number of used blocks/buffers         */ 
   ulonglong blocks_unused;  /* number of currently unused blocks             */
   ulonglong blocks_changed; /* number of currently dirty blocks              */
+  ulonglong blocks_warm;    /* number of blocks in warm sub-chain            */
   ulonglong read_requests;  /* number of read requests (read hits)           */
   ulonglong reads;        /* number of actual reads from files into buffers  */
   ulonglong write_requests; /* number of write requests (write hits)         */

mysql-test/r/key_cache.result

@@ -412,6 +412,7 @@ Variable_name	Value
 Key_blocks_not_flushed	0
 Key_blocks_unused	KEY_BLOCKS_UNUSED
 Key_blocks_used	4
+Key_blocks_warm	0
 Key_read_requests	22
 Key_reads	0
 Key_write_requests	26
@@ -459,6 +460,7 @@ Variable_name	Value
 Key_blocks_not_flushed	0
 Key_blocks_unused	KEY_BLOCKS_UNUSED
 Key_blocks_used	4
+Key_blocks_warm	0
 Key_read_requests	22
 Key_reads	0
 Key_write_requests	26
@@ -501,6 +503,7 @@ Variable_name	Value
 Key_blocks_not_flushed	0
 Key_blocks_unused	KEY_BLOCKS_UNUSED
 Key_blocks_used	4
+Key_blocks_warm	0
 Key_read_requests	22
 Key_reads	0
 Key_write_requests	26

mysql-test/r/ps_ddl.result

@@ -4,6 +4,7 @@ drop procedure if exists p_verify_reprepare_count;
 drop procedure if exists p1;
 drop function if exists f1;
 drop view if exists v1, v2;
+TRUNCATE TABLE mysql.general_log;
 create procedure p_verify_reprepare_count(expected int)
 begin
 declare old_reprepare_count int default @reprepare_count;

mysql-test/suite/rpl/t/rpl_loaddata_symlink.test

@@ -3,8 +3,8 @@
 # This test verifies if loading data infile will work fine 
 # if the path of the load data file is a symbolic link.
 #
---source include/master-slave.inc
 --source include/not_windows.inc
+--source include/master-slave.inc
 --source include/have_binlog_format_statement.inc
 
 create table t1(a int not null auto_increment, b int, primary key(a) );

mysql-test/t/ps_ddl.test

@@ -58,6 +58,10 @@ drop function if exists f1;
 drop view if exists v1, v2;
 --enable_warnings
 
+# Avoid selecting from a huge table possibly left over from previous tests,
+# as this really hurts --valgrind testing.
+TRUNCATE TABLE mysql.general_log;
+
 delimiter |;
 create procedure p_verify_reprepare_count(expected int)
 begin

mysys/mf_keycache.c

@@ -4906,6 +4906,7 @@ void get_simple_key_cache_statistics(SIMPLE_KEY_CACHE_CB *keycache,
   keycache_stats->blocks_used= keycache->blocks_used;
   keycache_stats->blocks_unused= keycache->blocks_unused;
   keycache_stats->blocks_changed= keycache->global_blocks_changed;
+  keycache_stats->blocks_warm= keycache->warm_blocks;
   keycache_stats->read_requests= keycache->global_cache_r_requests;
   keycache_stats->reads= keycache->global_cache_read;
   keycache_stats->write_requests= keycache->global_cache_w_requests;
@@ -5797,6 +5798,7 @@ get_partitioned_key_cache_statistics(PARTITIONED_KEY_CACHE_CB *keycache,
     keycache_stats->blocks_used+= partition->blocks_used;
     keycache_stats->blocks_unused+= partition->blocks_unused;
     keycache_stats->blocks_changed+= partition->global_blocks_changed;
+    keycache_stats->blocks_warm+= partition->warm_blocks;
     keycache_stats->read_requests+= partition->global_cache_r_requests;
     keycache_stats->reads+= partition->global_cache_read;
     keycache_stats->write_requests+= partition->global_cache_w_requests;

sql/mysqld.cc

@@ -7973,6 +7973,7 @@ static int show_default_keycache(THD *thd, SHOW_VAR *var, char *buff)
   set_one_keycache_var("blocks_not_flushed", blocks_changed);
   set_one_keycache_var("blocks_unused",      blocks_unused);
   set_one_keycache_var("blocks_used",        blocks_used);
+  set_one_keycache_var("blocks_warm",        blocks_warm);
   set_one_keycache_var("read_requests",      read_requests);
   set_one_keycache_var("reads",              reads);
   set_one_keycache_var("write_requests",     write_requests);