SQLITE3_MEMORY_USED(3) | Library Functions Manual | SQLITE3_MEMORY_USED(3)

# NAME

`sqlite3_memory_used`, `sqlite3_memory_highwater` —
Memory Allocator Statistics

# SYNOPSIS

sqlite3_int64
`sqlite3_memory_used`(void);

sqlite3_int64
`sqlite3_memory_highwater`(int resetFlag);

# DESCRIPTION

SQLite provides these two interfaces for reporting on the status of the sqlite3_malloc(), sqlite3_free(), and sqlite3_realloc() routines, which form the built-in memory allocation subsystem.

The sqlite3_memory_used() routine returns the number of bytes of memory currently outstanding (malloced but not freed). The sqlite3_memory_highwater() routine returns the maximum value of sqlite3_memory_used() since the high-water mark was last reset. 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.

The memory high-water 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 high-water mark prior to the reset.

# SEE ALSO

sqlite3_malloc(3), sqlite3_memory_used(3), sqlite3_malloc(3)

December 19, 2018 | NetBSD 9.2