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SQLite C Interface
Memory Allocator Statistics
sqlite3_int64 sqlite3_memory_used(void); sqlite3_int64 sqlite3_memory_highwater(int resetFlag);
SQLite provides these two interfaces for reporting on the status of the sqlite3_malloc(), sqlite3_free(), and sqlite3_realloc() the memory allocation subsystem included within the SQLite.
Invariants:
| F17371 | The sqlite3_memory_used() routine returns the number of bytes of memory currently outstanding (malloced but not freed). |
| F17373 | The sqlite3_memory_highwater() routine returns the maximum value of sqlite3_memory_used() since the highwater mark was last reset. |
| F17374 | The values returned by sqlite3_memory_used() and sqlite3_memory_highwater() include any overhead added by SQLite in its implementation of sqlite3_malloc(), but not overhead added by the any underlying system library routines that sqlite3_malloc() may call. |
| F17375 | The memory highwater mark is reset to the current value of sqlite3_memory_used() if and only if the parameter to sqlite3_memory_highwater() is true. The value returned by sqlite3_memory_highwater(1) is the highwater mark prior to the reset. |
See also lists of Objects, Constants, and Functions.