lp:933959 Assertion `0' failed in net_end_statement(THD*) on concurrent SELECT FROM I_S.INNODB_SYS_INDEXES and ALTER TABLE

Workaround: report a generic error if an I_S plugin failed silently.

use vsnprintf()
use write() on windows, not WriteFile or fwrite()
localtime_r is still a problem

Problem was a crash in internal temporary (Maria) files when row length exceeded 65535

mysql-test/suite/maria/r/maria3.result:
  Added test case
mysql-test/suite/maria/t/maria3.test:
  Added test case
storage/maria/ma_open.c:
  Added support for row length > 65535.
  This fixes crash when using tables with longer row lengths.

Fixed supression in mysql-test-run so it also works on windows.

mysql-test/mysql-test-run.pl:
  Fixed supression so it also works on windows.
mysql-test/valgrind.supp:
  More general handling of memory loss in dlclose (backported from 5.2)
sql/signal_handler.cc:
  Added newlines around link to how to do bug reports

"safe exception patch".
Remove misleading comments suggesting about signal() Windows, the routine here
is part of a exception handler, and sig parameter is an exception code.

Fixed README with link to source
Merged InnoDB change to XtraDB

README:
  Added information of where to find MariaDB code
storage/archive/ha_archive.cc:
  Removed memset() of rows, a MariaDB checksum's doesn't touch not used data.

Protocol documentation (http://forge.mysql.com/wiki/MySQL_Internals_ClientServer_Protocol)
says that initial packet sent by client if client wants SSL, consists of client capability flags only
(4 bytes or 2 bytes edependent on protocol versionl). 
Some clients happen to send more in the initial SSL packet (C client, Python connector), while others (Java, .NET) follow the docs and send only client capability flags.

A change that broke Java client was a newly introduced check that frst client packet
has 32 or more bytes. This is generally wrong, if client capability flags contains CLIENT_SSL.

Also, fixed the code such that read max client packet size and charset in the first packet prior to SSL handshake.  With SSL, clients do not have to send this info, they can only send client flags.

This is now fixed such that max packet size and charset are not read prior to SSL handshake, in case of SSL they are read from the "complete" client authentication packet after SSL initialization.

The cause of this bug was the same as for bug 902356 fixed for 5.3.

sql/sql_parse.cc:
  Only call ha_maria::implicit_commit if aria is enabled

The counter handler_read_key (SSV::ha_read_key_count) is incremented 
incorrectly.

The mysql server maintains a per thread system_status_var (SSV)
object.  This object contains among other things the counter
SSV::ha_read_key_count. The purpose of this counter is to measure the
number of requests to read a row based on a key (or the number of
index lookups).

This counter was wrongly incremented in the
ha_innobase::innobase_get_index(). The fix removes
this increment statement (for both innodb and innodb_plugin).

The various callers of the innobase_get_index() was checked to
determine if anybody must increment this counter (if they first call
innobase_get_index() and then perform an index lookup).  It was found
that no caller of innobase_get_index() needs to worry about the
SSV::ha_read_key_count counter.

SMALL KEY CACHE

The server crashed on division by zero because the key cache was not
initialized and the block length was 0 which was used in a division.

The fix was to not allow CACHE INDEX if the key cache was not initiallized.
Thus never try LOAD INDEX INTO CACHE for an uninitialized key cache.

Also added some windows files/directories to .bzrignore.

When printing information about a ROW_FORMAT=REDUNDANT record, pass
the correct flag to rec_get_next_offs().

rb:821 approved by Jimmy Yang

Removed previous patch of this problem.

Fixed feedback_plugin_send to not generate a random number of lines.


mysql-test/t/feedback_plugin_send.test:
  Don't print more than 4 lines (sometimes there are 6 feedback lines in the log...)
mysql-test/valgrind.supp:
  Added suppression for failure on work
support-files/compiler_warnings.supp:
  Suppress warning from xtradb

Fixed buildbot failures (compiler warnings, failing tests)

cmd-line-utils/libedit/map.c:
  Fixed compiler warning
cmd-line-utils/libedit/terminal.c:
  Fixed compiler warning
cmd-line-utils/libedit/tty.c:
  Fixed compiler warning
configure.in:
  Fixed that --with-libedit --without-readline works
mysql-test/suite/innodb_plugin/t/innodb_misc1.test:
  Fixed test that failed when characterset was missing

mysql-test/suite/funcs_1/t/is_engines_federated.test:
  Corrected path
storage/xtradb/fil/fil0fil.c:
  Fixed compiler warning

client/mysqltest.cc:
  Free mutex after usage (fixes valgrind warnings in embedded server)
mysql-test/include/gis_keys.inc:
  Fixed failure in innodb.gis_test
mysql-test/r/gis.result:
  Updated result
mysql-test/suite/innodb/r/innodb_gis.result:
  Updated results
mysql-test/suite/innodb/t/innodb_bug38231.test:
  Added handling of timeouts (happend on some servers in buildbot)
mysql-test/suite/innodb_plugin/r/innodb_gis.result:
  Updated results
mysql-test/suite/innodb_plugin/t/innodb.test:
  Use error names instead of numbers
mysql-test/suite/innodb_plugin/t/innodb_misc1.test:
  This test requires utf8
mysql-test/suite/innodb_plugin/t/innodb_mysql.test:
  This test requires Xtradb
sql/sql_base.cc:
  Don't print table names for placeholders.
sql/sql_show.cc:
  Temporary fix:
  Save and restore db and table_name in mysqld_show_create (to get rid of valgrind warning)
  A better solution that needs to be investgated is to not change these fields in mysql_derived_prepare()
sql/sql_view.cc:
  Fixed valgrind warning
storage/xtradb/handler/ha_innodb.cc:
  Don't access THD directly

Post-push fix: build break on windows/optimized

handle_segfault is the signal handler code of mysqld.  however, it makes
calls to potentially unsafe functions localtime_r, fprintf, fflush.



include/my_stacktrace.h:
  Add safe versions of itoa() write() and snprintf().
libmysqld/CMakeLists.txt:
  Move signal handler to separate file.
mysys/stacktrace.c:
  Remove unsafe function calls.
sql/CMakeLists.txt:
  Move signal handler to separate file.
sql/Makefile.am:
  Move signal handler to separate file.
sql/mysqld.cc:
  Move signal handler to separate file.
sql/signal_handler.cc:
  Remove unsafe function calls.

mysql-test/lib/My/Options.pm:
  My::Options::is_set() now matches both option names and values!
mysql-test/lib/mtr_cases.pm:
  1. don't merge --plugin-load here, it's too early
  2. don't skip combinations that set --plugin-load just because the test needs another --plugin-load.
     Skip *only* if test's --plugin-load matches *exactly* --plugin-load of one of the combinations.
  3. if skipping all combinations but one, still assign the test to the combination
mysql-test/mysql-test-run.pl:
  1. remove dead code - don't set variables that aren't used.
  2. bugfix: allow one-letter combination names
  3. in the command line, merge all --plugin-load options in one
storage/federated/ha_federated.cc:
  bugfix: garbage character in the generated SELECT query

We merged the test case for this into MariaDB 5.1, but the fix
was not yet part of XtraDB.