Function

VipsThreadpoolAllocateFn

Declaration

int
(* VipsThreadpoolAllocateFn) (
  VipsThreadState* state,
  void* a,
  gboolean* stop
)

Description [src]

This function is called to allocate a new work unit for the thread. It is always single-threaded, so it can modify per-pool state (such as a counter).

It should set stop to TRUE to indicate that no work could be allocated because the job is done.

::: seealso vips_threadpool_run().

Parameters

`state`	`VipsThreadState`
	Per-thread state.
	The data is owned by the caller of the function.
`a`	`void*`
	Client data.
	The argument can be `NULL`.
	The data is owned by the caller of the function.
`stop`	`gboolean*`
	Set this to signal end of computation.
	The data is owned by the caller of the function.

Return value

Returns:	`int`
	0 on success, or -1 on error.