@spec cache_get_max() :: integer()

Get the maximum number of operations we keep in cache.

@spec cache_get_max_files() :: integer()

Get the maximum number of tracked files we allow before we start dropping cached operations.

libvips only tracks file descriptors it allocates, it can't track ones allocated by external libraries.

@spec cache_get_max_mem() :: integer()

Get the maximum amount of tracked memory we allow before we start dropping cached operations.

@spec cache_set_max(integer()) :: :ok

Set the maximum number of operations we keep in cache.

@spec cache_set_max_files(integer()) :: :ok

Set the maximum number of tracked files we allow before we start dropping cached operations.

@spec cache_set_max_mem(integer()) :: :ok

Set the maximum amount of tracked memory we allow before we start dropping cached operations.

libvips only tracks file descriptors it allocates, it can't track ones allocated by external libraries.

@spec concurrency_get() :: integer()

Returns the number of worker threads that vips should use when running a VipsThreadPool.

The final value is clipped to the range 1 - 1024.

@spec concurrency_set(integer()) :: :ok

Sets the number of worker threads that vips should use when running a VipsThreadPool.

The special value 0 means "default". In this case, the number of threads is set by the environment variable VIPS_CONCURRENCY, or if that is not set, the number of threads available on the host machine.

@spec set_vips_leak_checking(boolean()) :: :ok

Turn on or off vips leak checking

@spec tracked_get_mem() :: integer()

Returns the number of bytes currently allocated by libvips.

Libvips uses this figure to decide when to start dropping cache.

@spec tracked_get_mem_highwater() :: integer()

Returns the largest number of bytes simultaneously allocated via libvips.

Handy for estimating max memory requirements for a program.

@spec version() :: String.t()

Get installed vips version