Wishing all a joyous and prosperous 2008 - filled with happy coding and
happy clients/customers/bosses/families.
Cheers...
Now a question. :)
I have 3 different database handles running in the same thread. One of
them is ":memory:".
I send an update statement to one and the program crashes.
Of note:
- SQLite is compiled into the program, I'm not using the dynamic lib.
- it's compiled within an extern of a GNU c++ compiler on OSX. I mark
my sqlite wrappers in extern.
- I am not running multiple threads, but I do have threadsafe enabled
via sqlite3_threadsafe();
Running my program from within GDB.
Program received signal EXC_BAD_ACCESS, Could not access memory.
Reason: KERN_INVALID_ADDRESS at address: 0x3a676e69
0x90001408 in pthread_mutex_lock ()
(gdb) bt
#0 0x90001408 in pthread_mutex_lock ()
#1 0x0002eef5 in sqlite3_mutex_enter (p=0x3a676e69) at
../../src/ext/sqlite/src/mutex_unix.c:186
#2 0x0002dd03 in sqlite3_exec (db=0x1472dc, zSql=0x59b7358 "UPDATE
words SET count = count+1 WHERE wid=999", xCallback=0, pArg=0x0,
pzErrMsg=0xbffff2ac) at ../../src/ext/sqlite/src/legacy.c:
I would expect, (if I understand potential problems), that I would get
a return int != SQLITE_OK , with a BUSY or something.
What could all this mean?
(I know this may not be enough information, but please let me know I
could provide more.)
PRAGMA default_cache_size= 23000
PRAGMA fullfsync= 0
PRAGMA synchronous= 2
PRAGMA locking_mode= normal
PRAGMA integrity_check= ok
PRAGMA vdbe_listing = ON
- Jonathan
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