WL#1895 - Print message to error log in case of detected MyISAM corruption

Changed my_error() to print error messages, which come from
arbitrary registered ranges of error messages. Messages can
be unregistered (and should be at end of the program).
Added registration of handler error messages.
Added a new mi_print_error() macro and a new 
mi_report_error() function, which supply error
messages with a table name.
Added calls to mi_print_error() or mi_report_error()
at all places in MyISAM, where table corruption is detected.


extra/comp_err.c:
  WL#1895 - Print message to error log in case of detected MyISAM corruption
  Added prints for ER_ERROR_FIRST and ER_ERROR_LAST.
  Removed print for ER_ERROR_MESSAGES.
include/errmsg.h:
  WL#1895 - Print message to error log in case of detected MyISAM corruption
  Added declaration for a new function.
  Added first and last error number defines.
include/my_base.h:
  WL#1895 - Print message to error log in case of detected MyISAM corruption
  Added first and last error number defines.
include/my_sys.h:
  WL#1895 - Print message to error log in case of detected MyISAM corruption
  Removed obsolete defines.
  Removed a global variable, which held pointers to the error message arrays.
  Added declarations for new functions.
include/mysys_err.h:
  WL#1895 - Print message to error log in case of detected MyISAM corruption
  Removed an obsolete define.
  Changed two defines to use the new defines.
  Added first and last error number defines.
libmysql/errmsg.c:
  WL#1895 - Print message to error log in case of detected MyISAM corruption
  Replaced global array initialization by proper registration
  and unregistration of client error messages.
libmysql/libmysql.c:
  WL#1895 - Print message to error log in case of detected MyISAM corruption
  Added a call for unregistration of client error messages.
myisam/mi_delete.c:
  WL#1895 - Print message to error log in case of detected MyISAM corruption
  Added calls to the new error logging function at all places, where
  corruption is detected.
  Added a debugging call to pretend MyISAM corruption in case a special
  debug string is set.
  Added a debugging call to test undefined error numbers in case a special
  debug string is set.
myisam/mi_extra.c:
  WL#1895 - Print message to error log in case of detected MyISAM corruption
  Added calls to the new error logging function at all places, where
  corruption is detected.
myisam/mi_info.c:
  WL#1895 - Print message to error log in case of detected MyISAM corruption
  Added the error logging function.
myisam/mi_key.c:
  WL#1895 - Print message to error log in case of detected MyISAM corruption
  Added calls to the new error logging function at all places, where
  corruption is detected.
myisam/mi_keycache.c:
  WL#1895 - Print message to error log in case of detected MyISAM corruption
  Added calls to the new error logging function at all places, where
  corruption is detected.
myisam/mi_locking.c:
  WL#1895 - Print message to error log in case of detected MyISAM corruption
  Added calls to the new error logging function at all places, where
  corruption is detected.
myisam/mi_open.c:
  WL#1895 - Print message to error log in case of detected MyISAM corruption
  Added calls to the new error logging function at all places, where
  corruption is detected.
  Added a debugging call to pretend MyISAM corruption in case a special
  debug string is set.
myisam/mi_page.c:
  WL#1895 - Print message to error log in case of detected MyISAM corruption
  Added calls to the new error logging function at all places, where
  corruption is detected.
myisam/mi_range.c:
  WL#1895 - Print message to error log in case of detected MyISAM corruption
  Added calls to the new error logging function at all places, where
  corruption is detected.
myisam/mi_rkey.c:
  WL#1895 - Print message to error log in case of detected MyISAM corruption
  Added calls to the new error logging function at all places, where
  corruption is detected.
myisam/mi_search.c:
  WL#1895 - Print message to error log in case of detected MyISAM corruption
  Added calls to the new error logging function at all places, where
  corruption is detected.
myisam/mi_update.c:
  WL#1895 - Print message to error log in case of detected MyISAM corruption
  Added calls to the new error logging function at all places, where
  corruption is detected.
  Added a debugging call to pretend MyISAM corruption in case a special
  debug string is set.
myisam/mi_write.c:
  WL#1895 - Print message to error log in case of detected MyISAM corruption
  Added calls to the new error logging function at all places, where
  corruption is detected.
  Added a debugging call to pretend MyISAM corruption in case a special
  debug string is set.
myisam/myisamdef.h:
  WL#1895 - Print message to error log in case of detected MyISAM corruption
  Added the declaration of the new error logging function
  and a new macro.
mysql-test/r/merge.result:
  WL#1895 - Print message to error log in case of detected MyISAM corruption
  Changed test results. These come from the changed error reporting
  in openfrm().
mysql-test/r/repair.result:
  WL#1895 - Print message to error log in case of detected MyISAM corruption
  Changed test results. These come from the changed error reporting
  in openfrm().
mysql-test/t/merge.test:
  WL#1895 - Print message to error log in case of detected MyISAM corruption
  Changederror numbers. These come from the changed error reporting
  in openfrm().
mysys/errors.c:
  WL#1895 - Print message to error log in case of detected MyISAM corruption
  Dropped the assignment of the global errors to the
  dropped global pointer array.
mysys/my_error.c:
  WL#1895 - Print message to error log in case of detected MyISAM corruption
  Changed my_error() from using a static array of pointers to
  error message arrays to using a linked list of structures
  with pointers to array message arrays.
  Added functions for registering and unregistering error 
  message arrays to the chain.
sql/derror.cc:
  WL#1895 - Print message to error log in case of detected MyISAM corruption
  Changed reading of mysqld error messages to using the new
  registering and unregistering functions.
sql/handler.cc:
  WL#1895 - Print message to error log in case of detected MyISAM corruption
  Added initialization and deinitialization of handler error messages.
  Included more handler error messages in the mapping to
  mysqld error messages.
sql/mysqld.cc:
  WL#1895 - Print message to error log in case of detected MyISAM corruption
  Changed deinitialization of error messages to proper
  unregistration.
sql/table.cc:
  WL#1895 - Print message to error log in case of detected MyISAM corruption
  Changed error reporting in openfrm() so that error messages from
  handler::ha_open() are reported by handler::print_error(). This
  changed messages from "Can't open 't1.MYI' (errno: 130)" to
  "Incorrect file format 't1'" for example.
sql/unireg.h:
  WL#1895 - Print message to error log in case of detected MyISAM corruption
  Changed two defines to use the new defines.

1 files changed, 33 insertions, 0 deletions

diff --git a/myisam/mi_info.c b/myisam/mi_info.c
index cf63ef63618..bdece9c2ee3 100644
--- a/myisam/mi_info.c
+++ b/myisam/mi_info.c
@@ -105,3 +105,36 @@ int mi_status(MI_INFO *info, register MI_ISAMINFO *x, uint flag)
   }
   DBUG_RETURN(0);
 }
+
+
+/*
+  Write a message to the error log.
+
+  SYNOPSIS
+    mi_report_error()
+    file_name                   Name of table file (e.g. index_file_name).
+    errcode                     Error number.
+
+  DESCRIPTION
+    This function supplies my_error() with a table name. Most error
+    messages need one. Since string arguments in error messages are limited
+    to 64 characters by convention, we ensure that in case of truncation,
+    that the end of the index file path is in the message. This contains
+    the most valuable information (the table name and the database name).
+
+  RETURN
+    void
+*/
+
+void mi_report_error(int errcode, const char *file_name)
+{
+  size_t        lgt;
+  DBUG_ENTER("mi_report_error");
+  DBUG_PRINT("enter",("errcode %d, table '%s'", errcode, file_name));
+
+  if ((lgt= strlen(file_name)) > 64)
+    file_name+= lgt - 64;
+  my_error(errcode, MYF(ME_NOREFRESH), file_name);
+  DBUG_VOID_RETURN;
+}
+