xMutexHeld       6418 ext/sqlite3/libsqlite/sqlite3.c   int (*xMutexHeld)(sqlite3_mutex *);
xMutexHeld       19252 ext/sqlite3/libsqlite/sqlite3.c   return p==0 || sqlite3GlobalConfig.mutex.xMutexHeld(p);
xMutexHeld       6211 ext/sqlite3/libsqlite/sqlite3.h   int (*xMutexHeld)(sqlite3_mutex *);