With this combination, outoput was directed to .trace but not all
parts of MTR was aware of this.
Replace .err with .trace at the earliest possible place
Fix for --vs-config applied
Find.pm incorrectly tested an unitialized local variable instead
of the global, corrected.
Find.pm is also wrong in 5.5: uses a non-existent global variable. Fix when
merging up.
Apart strict-aliasing warnings, fix the remaining warnings
generated by GCC 4.4.4 -Wall and -Wextra flags.
One major source of warnings was the in-house function my_bcmp
which (unconventionally) took pointers to unsigned characters
as the byte sequences to be compared. Since my_bcmp and bcmp
are deprecated functions whose only difference with memcmp is
the return value, every use of the function is replaced with
memcmp as the special return value wasn't actually being used
by any caller.
There were also various other warnings, mostly due to type
mismatches, missing return values, missing prototypes, dead
code (unreachable) and ignored return values.
BUILD/SETUP.sh:
Remove flags that are implied by -Wall and -Wextra.
Do not warn about unused parameters in C++.
BUILD/check-cpu:
Print only the compiler version instead of verbose banner.
Although the option is gcc specific, the check was only
being used for GCC specific checks anyway.
client/mysql.cc:
bcmp is no longer defined.
client/mysqltest.cc:
Pass a string to function expecting a format string.
Replace use of bcmp with memcmp.
cmd-line-utils/readline/Makefile.am:
Always define _GNU_SOURCE when compiling GNU readline.
Required to make certain prototypes visible.
cmd-line-utils/readline/input.c:
Condition for the code to be meaningful.
configure.in:
Remove check for bcmp.
extra/comp_err.c:
Use appropriate type.
extra/replace.c:
Replace use of bcmp with memcmp.
extra/yassl/src/crypto_wrapper.cpp:
Do not ignore the return value of fgets. Retrieve the file
position if fgets succeed -- if it fails, the function will
bail out and return a error.
extra/yassl/taocrypt/include/blowfish.hpp:
Use a single array instead of accessing positions of the sbox_
through a subscript to pbox_.
extra/yassl/taocrypt/include/runtime.hpp:
One definition of such functions is enough.
extra/yassl/taocrypt/src/aes.cpp:
Avoid potentially ambiguous conditions.
extra/yassl/taocrypt/src/algebra.cpp:
Rename arguments to avoid shadowing related warnings.
extra/yassl/taocrypt/src/blowfish.cpp:
Avoid potentially ambiguous conditions.
extra/yassl/taocrypt/src/integer.cpp:
Do not define type within a anonymous union.
Use a variable to return a value instead of
leaving the result in a register -- compiler
does not know the logic inside the asm.
extra/yassl/taocrypt/src/misc.cpp:
Define handler for pure virtual functions.
Remove unused code.
extra/yassl/taocrypt/src/twofish.cpp:
Avoid potentially ambiguous conditions.
extra/yassl/testsuite/test.hpp:
Function must have C language linkage.
include/m_string.h:
Remove check which relied on bcmp being defined -- they weren't
being used as bcmp is only visible when _BSD_SOURCE is defined.
include/my_bitmap.h:
Remove bogus helpers which were used only in a few files and
were causing warnings about dead code.
include/my_global.h:
Due to G++ bug, always silence false-positive uninitialized
variables warnings when compiling C++ code with G++.
Remove bogus helper.
libmysql/Makefile.shared:
Remove built-in implementation of bcmp.
mysql-test/lib/My/SafeProcess/safe_process.cc:
Cast pid to largest possible type for a process identifier.
mysys/mf_loadpath.c:
Leave space of the ending nul.
mysys/mf_pack.c:
Replace bcmp with memcmp.
mysys/my_bitmap.c:
Dead code removal.
mysys/my_gethwaddr.c:
Remove unused variable.
mysys/my_getopt.c:
Silence bogus uninitialized variable warning.
Do not cast away the constant qualifier.
mysys/safemalloc.c:
Cast to expected type.
mysys/thr_lock.c:
Silence bogus uninitialized variable warning.
sql/field.cc:
Replace bogus helper with a more appropriate logic which is
used throughout the code.
sql/item.cc:
Remove bogus logical condition which always evaluates to TRUE.
sql/item_create.cc:
Simplify code to avoid signedness related warnings.
sql/log_event.cc:
Replace use of bcmp with memcmp.
No need to use helpers for simple bit operations.
sql/log_event_old.cc:
Replace bmove_align with memcpy.
sql/mysqld.cc:
Move use declaration of variable to the ifdef block where it
is used. Remove now-unnecessary casts and arguments.
sql/set_var.cc:
Replace bogus helpers with simple and classic bit operations.
sql/slave.cc:
Cast to expected type and silence bogus warning.
sql/sql_class.h:
Don't use enum values as bit flags, the supposed type safety is
bogus as the combined bit flags are not a value in the enumeration.
sql/udf_example.c:
Only declare variable when necessary.
sql/unireg.h:
Replace use of bmove_align with memcpy.
storage/innobase/os/os0file.c:
Silence bogus warning.
storage/myisam/mi_open.c:
Remove bogus cast, DBUG_DUMP expects a pointer to unsigned
char.
storage/myisam/mi_page.c:
Remove bogus cast, DBUG_DUMP expects a pointer to unsigned
char.
strings/bcmp.c:
Remove built-in bcmp.
strings/ctype-ucs2.c:
Silence bogus warning.
tests/mysql_client_test.c:
Use a appropriate type as expected by simple_command().
- The arguments are properly quoted when mtr.pl calls my_safe_process but
unfortunately the all off when running with active state perl and stays
in cygwin perl.
- Extend the patch to only quote args that are not already quoted
This a redo of previous commit, will be included in next push
Some output is written, some is not
Finally concluded it's a Perl bug: after running with parallel threads
for a while, print suddenly ignores all but the first argument.
Workaround: concatenate all the arguments into one, except in output that
only comes before we start running tests
The reason for the bug is that mysqtest as well as other client tools
running in test suite (mysqlbinlog, mysqldump) will first try to connect
whatever database has created shared memory with default base name
"MySQL" and use this. (Same effect could be seen on Unix if mtr would
not care to calculate "port" and "socket" parameter).
The fix ensures that all client tools and running in mtr use unique
per-database shared memory base parameters, so there is no possibility
to clash with already installed one. We use socket name for shared memory
base (it's known to be unique). This shared-memory-base is written to the
MTR config file to the [client] and [mysqld] sections. Fix made also made
sure all client tools understand and correctly handle --shared-memory-base.
Prior to this patch it was not the case for mysqltest, mysqlbinlog and
mysql_client_test.
All new connections done from mtr scripts via connect() will by default
set shared-memory-base. And finally, there is a possibility to force
shared memory or pipe connection and overwrite shared memory/pipe base name
from within mtr scripts via optional PIPE or SHM modifier. This functionality
was manually backported from 6.0
(original patch http://lists.mysql.com/commits/74749)
The problem is that safe_kill_win fails to detect a dead process. OpenProcess() will
succeed even after the process died, it will first fail after the last handle to process
is closed.
To fix the problem, check process status with GetExitCodeProcess() and consider
process to be dead if the exit code returned by this routine is not STILL_ALIVE.
Bug in Perl
Scrap attempt to do this smartly on AIX, just drop the test and assume it's OK
This commit undoes the previous push and adds a line to ignore on AIX
Based upon patch contributed by Stewart Smith
mysql-test/lib/My/SafeProcess/safe_process.cc:
Fix style -- remove unneeded spaces.
Specify C linkage for the signal handling functions.
Check return value from read()/write().
Suspected reason for the failure is that safe_process.exe already runs in a job that does not allow breakaways.
The fix is to use a fallback - make newly created process the root of the new process group. This allows to kill process together with descendants via GenerateConsoleCtrlEvent (CTRL_BREAK_EVENT, pid)
perl
The problem here was the method how MTR gets its unique thread ids.
Prior to this patch, the method to do it was to maintain a global
table of pid,mtr_unique_id) pairs. The table was backed by a text
file. The table was cleaned up one in a while and dead processes leaking
unique_ids were determined with with kill(0) or with scripting tasklist
on Windows.
This method is flawed specifically on native Windows Perl. fork() is
implemented with starting a new thread, give it a syntetic negative PID
(threadID*(-1)), until this thread creates a new process with exec()
However, neither tasklist nor any other native Windows tool can cope with
negative perl PIDs. This lead to incorrect determination of dead process
and reusing already used mtr_unique_id.
The patch introduces alternative portable method of solving unique-id
problem. When a process needs a unique id in range [min...max], it just
starts to open files named min, min+1,...max in a loop . After file is
opened, we do non-blocking flock(). When flock() succeeds, process has
allocated the ID. When process dies, file is unlocked . Checks for zombies
are not necessary.
Since the change would create a co-existence problems with older version
of MTR, because of different way to calculate IDs, the default ID range
is changed from 250-299 to 300-349.
Another fix that was necessary enable --parallel option was to serialize
spawn() calls on Windows. specifically, IO redirects needed to be protected.
This patch also fixes hanging CRTL-C (as described in Bug #38629) for the
"new" MTR. The fix was already in 6.0 and is now downported.
Error log gets truncated when mysqld is restarted by MTR
mysql-test/include/check-warnings.test:
Since server doesn't have log-error, get it from env. var. set by MTR
mysql-test/lib/My/ConfigFactory.pm:
"Hide" log-error in a comment
mysql-test/mysql-test-run.pl:
"Hide" log-error in my.cnf by comment
add --console to arguments on Windows
Move .err file to var/log
- output callstacks from crash using cdb debugger which is part
of "Debugging Tools for Windows". Output other interesting
information - function parameters, possibly source code fragment
and other goodies of "!analyze" cdb extension.
- Allow the new process to break away from any job that this
process is part of so that it can be assigned to the new JobObject
we just created. This is safe since the new JobObject is created with
the JOB_OBJECT_LIMIT_KILL_ON_JOB_CLOSE flag, making sure it will be
terminated when the last handle to it is closed(which is owned by
this process).
- Add a "skip-ssl=1" to [mysqltest] section so that
mysqltest will not run with ssl turned on by default
but stil be able to turn it on when requested
- This avoids that check_warnings and check_testcase
connects to the server woth SSL turned on
