WL#2360 Performance schema

Part III: mysys instrumentation

Author: Marc Alff

client/client_priv.h

@@ -1,4 +1,4 @@
-/* Copyright (C) 2001-2006 MySQL AB
+/* Copyright (C) 2001-2006 MySQL AB, 2009 Sun Microsystems, Inc
 
    This program is free software; you can redistribute it and/or modify
    it under the terms of the GNU General Public License as published by
@@ -87,3 +87,24 @@ enum options_client
   OPT_INIT_COMMAND,
   OPT_MAX_CLIENT_OPTION
 };
+
+/**
+  First mysql version supporting the information schema.
+*/
+#define FIRST_INFORMATION_SCHEMA_VERSION 50003
+
+/**
+  Name of the information schema database.
+*/
+#define INFORMATION_SCHEMA_DB_NAME "information_schema"
+
+/**
+  First mysql version supporting the performance schema.
+*/
+#define FIRST_PERFORMANCE_SCHEMA_VERSION 50600
+
+/**
+  Name of the performance schema database.
+*/
+#define PERFORMANCE_SCHEMA_DB_NAME "performance_schema"
+

client/mysqlcheck.c

@@ -1,4 +1,4 @@
-/* Copyright (C) 2000 MySQL AB
+/* Copyright (C) 2000 MySQL AB, 2009 Sun Microsystems, Inc
 
    This program is free software; you can redistribute it and/or modify
    it under the terms of the GNU General Public License as published by
@@ -644,8 +644,11 @@ static int process_one_db(char *database)
 
 static int use_db(char *database)
 {
-  if (mysql_get_server_version(sock) >= 50003 &&
-      !my_strcasecmp(&my_charset_latin1, database, "information_schema"))
+  if (mysql_get_server_version(sock) >= FIRST_INFORMATION_SCHEMA_VERSION &&
+      !my_strcasecmp(&my_charset_latin1, database, INFORMATION_SCHEMA_DB_NAME))
+    return 1;
+  if (mysql_get_server_version(sock) >= FIRST_PERFORMANCE_SCHEMA_VERSION &&
+      !my_strcasecmp(&my_charset_latin1, database, PERFORMANCE_SCHEMA_DB_NAME))
     return 1;
   if (mysql_select_db(sock, database))
   {

client/mysqldump.c

@@ -3836,8 +3836,12 @@ static int dump_all_databases()
     return 1;
   while ((row= mysql_fetch_row(tableres)))
   {
-    if (mysql_get_server_version(mysql) >= 50003 &&
-        !my_strcasecmp(&my_charset_latin1, row[0], "information_schema"))
+    if (mysql_get_server_version(mysql) >= FIRST_INFORMATION_SCHEMA_VERSION &&
+        !my_strcasecmp(&my_charset_latin1, row[0], INFORMATION_SCHEMA_DB_NAME))
+      continue;
+
+    if (mysql_get_server_version(mysql) >= FIRST_PERFORMANCE_SCHEMA_VERSION &&
+        !my_strcasecmp(&my_charset_latin1, row[0], PERFORMANCE_SCHEMA_DB_NAME))
       continue;
 
     if (dump_all_tables_in_db(row[0]))
@@ -3854,8 +3858,12 @@ static int dump_all_databases()
     }
     while ((row= mysql_fetch_row(tableres)))
     {
-      if (mysql_get_server_version(mysql) >= 50003 &&
-          !my_strcasecmp(&my_charset_latin1, row[0], "information_schema"))
+      if (mysql_get_server_version(mysql) >= FIRST_INFORMATION_SCHEMA_VERSION &&
+          !my_strcasecmp(&my_charset_latin1, row[0], INFORMATION_SCHEMA_DB_NAME))
+        continue;
+
+      if (mysql_get_server_version(mysql) >= FIRST_PERFORMANCE_SCHEMA_VERSION &&
+          !my_strcasecmp(&my_charset_latin1, row[0], PERFORMANCE_SCHEMA_DB_NAME))
         continue;
 
       if (dump_all_views_in_db(row[0]))
@@ -4256,10 +4264,12 @@ static int dump_selected_tables(char *db, char **table_names, int tables)
   }
   end= pos;
 
-  /* Can't LOCK TABLES in INFORMATION_SCHEMA, so don't try. */
+  /* Can't LOCK TABLES in I_S / P_S, so don't try. */
   if (lock_tables &&
-      !(mysql_get_server_version(mysql) >= 50003 &&
-        !my_strcasecmp(&my_charset_latin1, db, "information_schema")))
+      !(mysql_get_server_version(mysql) >= FIRST_INFORMATION_SCHEMA_VERSION &&
+        !my_strcasecmp(&my_charset_latin1, db, INFORMATION_SCHEMA_DB_NAME)) &&
+      !(mysql_get_server_version(mysql) >= FIRST_PERFORMANCE_SCHEMA_VERSION &&
+        !my_strcasecmp(&my_charset_latin1, db, PERFORMANCE_SCHEMA_DB_NAME)))
   {
     if (mysql_real_query(mysql, lock_tables_query.str,
                          lock_tables_query.length-1))

include/keycache.h

@@ -1,4 +1,4 @@
-/* Copyright (C) 2003 MySQL AB
+/* Copyright (C) 2003 MySQL AB, 2009 Sun Microsystems, Inc
 
    This program is free software; you can redistribute it and/or modify
    it under the terms of the GNU General Public License as published by
@@ -70,7 +70,7 @@ typedef struct st_key_cache
   uchar HUGE_PTR *block_mem;     /* memory for block buffers                 */
   BLOCK_LINK *used_last;         /* ptr to the last block of the LRU chain   */
   BLOCK_LINK *used_ins;          /* ptr to the insertion block in LRU chain  */
-  pthread_mutex_t cache_lock;    /* to lock access to the cache structure    */
+  mysql_mutex_t cache_lock;      /* to lock access to the cache structure    */
   KEYCACHE_WQUEUE resize_queue;  /* threads waiting during resize operation  */
   /*
     Waiting for a zero resize count. Using a queue for symmetry though

include/my_bitmap.h

@@ -1,4 +1,4 @@
-/* Copyright (C) 2000 MySQL AB
+/* Copyright (C) 2000 MySQL AB, 2009 Sun Microsystems, Inc
 
    This program is free software; you can redistribute it and/or modify
    it under the terms of the GNU General Public License as published by
@@ -34,7 +34,7 @@ typedef struct st_bitmap
      acquiring the mutex
    */
 #ifdef THREAD
-  pthread_mutex_t *mutex;
+  mysql_mutex_t *mutex;
 #endif
 } MY_BITMAP;
 

include/my_pthread.h

@@ -607,6 +607,8 @@ extern pthread_mutexattr_t my_errorcheck_mutexattr;
 typedef ulong my_thread_id;
 
 extern my_bool my_thread_global_init(void);
+extern my_bool my_thread_basic_global_init(void);
+extern void my_thread_basic_global_reinit(void);
 extern void my_thread_global_end(void);
 extern my_bool my_thread_init(void);
 extern void my_thread_end(void);
@@ -637,10 +639,10 @@ extern int pthread_dummy(int);
 struct st_my_thread_var
 {
   int thr_errno;
-  pthread_cond_t suspend;
-  pthread_mutex_t mutex;
-  pthread_mutex_t * volatile current_mutex;
-  pthread_cond_t * volatile current_cond;
+  mysql_cond_t suspend;
+  mysql_mutex_t mutex;
+  mysql_mutex_t * volatile current_mutex;
+  mysql_cond_t * volatile current_cond;
   pthread_t pthread_self;
   my_thread_id id;
   int cmp_length;
@@ -692,16 +694,16 @@ extern uint thd_lib_detected;
 #ifdef THREAD
 #ifndef thread_safe_increment
 #define thread_safe_increment(V,L) \
-        (pthread_mutex_lock((L)), (V)++, pthread_mutex_unlock((L)))
+        (mysql_mutex_lock((L)), (V)++, mysql_mutex_unlock((L)))
 #define thread_safe_decrement(V,L) \
-        (pthread_mutex_lock((L)), (V)--, pthread_mutex_unlock((L)))
+        (mysql_mutex_lock((L)), (V)--, mysql_mutex_unlock((L)))
 #endif
 
 #ifndef thread_safe_add
 #define thread_safe_add(V,C,L) \
-        (pthread_mutex_lock((L)), (V)+=(C), pthread_mutex_unlock((L)))
+        (mysql_mutex_lock((L)), (V)+=(C), mysql_mutex_unlock((L)))
 #define thread_safe_sub(V,C,L) \
-        (pthread_mutex_lock((L)), (V)-=(C), pthread_mutex_unlock((L)))
+        (mysql_mutex_lock((L)), (V)-=(C), mysql_mutex_unlock((L)))
 #endif
 #endif
 

include/my_sys.h

@@ -338,7 +338,7 @@ struct st_my_file_info
 #endif
   enum   file_type	type;
 #if defined(THREAD) && !defined(HAVE_PREAD) && !defined(_WIN32)
-  pthread_mutex_t	mutex;
+  mysql_mutex_t mutex;
 #endif
 };
 
@@ -358,7 +358,7 @@ typedef struct st_my_tmpdir
   char **list;
   uint cur, max;
 #ifdef THREAD
-  pthread_mutex_t mutex;
+  mysql_mutex_t mutex;
 #endif
 } MY_TMPDIR;
 
@@ -374,9 +374,9 @@ typedef int (*IO_CACHE_CALLBACK)(struct st_io_cache*);
 #ifdef THREAD
 typedef struct st_io_cache_share
 {
-  pthread_mutex_t       mutex;           /* To sync on reads into buffer. */
-  pthread_cond_t        cond;            /* To wait for signals. */
-  pthread_cond_t        cond_writer;     /* For a synchronized writer. */
+  mysql_mutex_t       mutex;           /* To sync on reads into buffer. */
+  mysql_cond_t        cond;            /* To wait for signals. */
+  mysql_cond_t        cond_writer;     /* For a synchronized writer. */
   /* Offset in file corresponding to the first byte of buffer. */
   my_off_t              pos_in_file;
   /* If a synchronized write cache is the source of the data. */
@@ -437,7 +437,7 @@ typedef struct st_io_cache		/* Used when cacheing files */
     The lock is for append buffer used in SEQ_READ_APPEND cache
     need mutex copying from append buffer to read buffer.
   */
-  pthread_mutex_t append_buffer_lock;
+  mysql_mutex_t append_buffer_lock;
   /*
     The following is used when several threads are reading the
     same file in parallel. They are synchronized on disk
@@ -691,6 +691,7 @@ extern const char **my_error_unregister(int first, int last);
 extern void my_message(uint my_err, const char *str,myf MyFlags);
 extern void my_message_no_curses(uint my_err, const char *str,myf MyFlags);
 extern void my_message_curses(uint my_err, const char *str,myf MyFlags);
+extern my_bool my_basic_init(void);
 extern my_bool my_init(void);
 extern void my_end(int infoflag);
 extern int my_redel(const char *from, const char *to, int MyFlags);

include/thr_lock.h

@@ -1,4 +1,4 @@
-/* Copyright 2000-2008 MySQL AB, 2008 Sun Microsystems, Inc.
+/* Copyright 2000-2008 MySQL AB, 2008-2009 Sun Microsystems, Inc.
 
    This program is free software; you can redistribute it and/or modify
    it under the terms of the GNU General Public License as published by
@@ -115,10 +115,11 @@ typedef struct st_thr_lock_data {
   THR_LOCK_OWNER *owner;
   struct st_thr_lock_data *next,**prev;
   struct st_thr_lock *lock;
-  pthread_cond_t *cond;
+  mysql_cond_t *cond;
   enum thr_lock_type type;
   void *status_param;			/* Param to status functions */
   void *debug_print_param;
+  struct PSI_table *m_psi;
 } THR_LOCK_DATA;
 
 struct st_lock_list {
@@ -127,7 +128,7 @@ struct st_lock_list {
 
 typedef struct st_thr_lock {
   LIST list;
-  pthread_mutex_t mutex;
+  mysql_mutex_t mutex;
   struct st_lock_list read_wait;
   struct st_lock_list read;
   struct st_lock_list write_wait;
@@ -144,7 +145,7 @@ typedef struct st_thr_lock {
 
 
 extern LIST *thr_lock_thread_list;
-extern pthread_mutex_t THR_LOCK_lock;
+extern mysql_mutex_t THR_LOCK_lock;
 
 my_bool init_thr_lock(void);		/* Must be called once/thread */
 #define thr_lock_owner_init(owner, info_arg) (owner)->info= (info_arg)

mysys/charset.c

@@ -1,4 +1,4 @@
-/* Copyright (C) 2000 MySQL AB
+/* Copyright (C) 2000 MySQL AB, 2008-2009 Sun Microsystems, Inc
 
    This program is free software; you can redistribute it and/or modify
    it under the terms of the GNU General Public License as published by
@@ -339,10 +339,10 @@ static my_bool my_read_charset_file(const char *filename, myf myflags)
        !(buf= (uchar*) my_malloc(len,myflags)))
     return TRUE;
 
-  if ((fd=my_open(filename,O_RDONLY,myflags)) < 0)
+  if ((fd= mysql_file_open(key_file_charset, filename, O_RDONLY, myflags)) < 0)
     goto error;
-  tmp_len=my_read(fd, buf, len, myflags);
-  my_close(fd,myflags);
+  tmp_len= mysql_file_read(fd, buf, len, myflags);
+  mysql_file_close(fd, myflags);
   if (tmp_len != len)
     goto error;
 
@@ -421,7 +421,7 @@ static my_bool init_available_charsets(myf myflags)
       To make things thread safe we are not allowing other threads to interfere
       while we may changing the cs_info_table
     */
-    pthread_mutex_lock(&THR_LOCK_charset);
+    mysql_mutex_lock(&THR_LOCK_charset);
     if (!charset_initialized)
     {
       bzero(&all_charsets,sizeof(all_charsets));
@@ -444,7 +444,7 @@ static my_bool init_available_charsets(myf myflags)
       error= my_read_charset_file(fname,myflags);
       charset_initialized=1;
     }
-    pthread_mutex_unlock(&THR_LOCK_charset);
+    mysql_mutex_unlock(&THR_LOCK_charset);
   }
   return error;
 }
@@ -507,7 +507,7 @@ static CHARSET_INFO *get_internal_charset(uint cs_number, myf flags)
       To make things thread safe we are not allowing other threads to interfere
       while we may changing the cs_info_table
     */
-    pthread_mutex_lock(&THR_LOCK_charset);
+    mysql_mutex_lock(&THR_LOCK_charset);
 
     if (!(cs->state & (MY_CS_COMPILED|MY_CS_LOADED))) /* if CS is not in memory */
     {
@@ -529,7 +529,7 @@ static CHARSET_INFO *get_internal_charset(uint cs_number, myf flags)
     else
       cs= NULL;
 
-    pthread_mutex_unlock(&THR_LOCK_charset);
+    mysql_mutex_unlock(&THR_LOCK_charset);
   }
   return cs;
 }

mysys/default.c

@@ -1,4 +1,4 @@
-/* Copyright (C) 2000-2003 MySQL AB
+/* Copyright (C) 2000-2003 MySQL AB, 2008-2009 Sun Microsystems, Inc
 
    This program is free software; you can redistribute it and/or modify
    it under the terms of the GNU General Public License as published by
@@ -683,7 +683,7 @@ static int search_default_file_with_ext(Process_option_func opt_handler,
   static const char includedir_keyword[]= "includedir";
   static const char include_keyword[]= "include";
   const int max_recursion_level= 10;
-  FILE *fp;
+  MYSQL_FILE *fp;
   uint line=0;
   my_bool found_group=0;
   uint i;
@@ -723,10 +723,10 @@ static int search_default_file_with_ext(Process_option_func opt_handler,
     }
   }
 #endif
-  if (!(fp= my_fopen(name, O_RDONLY, MYF(0))))
+  if (!(fp= mysql_file_fopen(key_file_cnf, name, O_RDONLY, MYF(0))))
     return 1;					/* Ignore wrong files */
 
-  while (fgets(buff, sizeof(buff) - 1, fp))
+  while (mysql_file_fgets(buff, sizeof(buff) - 1, fp))
   {
     line++;
     /* Ignore comment and empty lines */
@@ -916,11 +916,11 @@ static int search_default_file_with_ext(Process_option_func opt_handler,
         goto err;
     }
   }
-  my_fclose(fp,MYF(0));
+  mysql_file_fclose(fp, MYF(0));
   return(0);
 
  err:
-  my_fclose(fp,MYF(0));
+  mysql_file_fclose(fp, MYF(0));
   return -1;					/* Fatal error */
 }