This are helper provided around core Eio API.

This set of functions do provide helper to work around data provided by Eio without the need to look at system header.

Functions
int	eio_init (void)
	Initialize eio and all its required submodule.
int	eio_shutdown (void)
	Shutdown eio and all its submodule if possible.
void	eio_memory_burst_limit_set (size_t limit)
	Set the limit to the maximum amount of memory used.
size_t	eio_memory_burst_limit_get (void)
	Get the actual limit to the maximum amount of memory used.
void *	eio_file_container_get (Eio_File *ls)
	Return the container during EIO operation.
Eina_Bool	eio_file_cancel (Eio_File *ls)
	Cancel any Eio_File.
Eina_Bool	eio_file_check (Eio_File *ls)
	Check if an Eio_File operation has been cancelled.
Eina_Bool	eio_file_associate_add (Eio_File ls, const char key, const void *data, Eina_Free_Cb free_cb)
	Associate data with the current filtered file.
Eina_Bool	eio_file_associate_direct_add (Eio_File ls, const char key, const void *data, Eina_Free_Cb free_cb)
	Associate data with the current filtered file.
void *	eio_file_associate_find (Eio_File ls, const char key)
	Get the data associated during the filter callback inside the main loop.

Function Documentation

Eina_Bool eio_file_associate_add	(	Eio_File *	ls,
		const char *	key,
		const void *	data,
		Eina_Free_Cb	free_cb
	)

Associate data with the current filtered file.

Parameters:

ls	The Eio_File ls request currently calling the filter callback.
key	The key to associate data to.
data	The data to associate the data to.
free_cb	Optionally a function to call to free the associated data, `data` is passed as the callback data parameter. If no `free_cb` is provided the user `data` remains untouched.

Returns:: EINA_TRUE if insertion was fine.

This function can only be safely called from within the filter callback. If you don't need to copy the key around you can use eio_file_associate_direct_add

Since :: 3.0

Eina_Bool eio_file_associate_direct_add	(	Eio_File *	ls,
		const char *	key,
		const void *	data,
		Eina_Free_Cb	free_cb
	)

Associate data with the current filtered file.

Parameters:

ls	The Eio_File ls request currently calling the filter callback.
key	The key to associate data to (will not be copied, and the pointer will not be used as long as the file is not notified).
data	The data to associate the data to.
free_cb	The function to call to free the associated data, `free_cb` will be called if not specified.

Returns:: EINA_TRUE if insertion was fine.

This function can only be safely called from within the filter callback. If you need eio to make a proper copy of the key to be safe use eio_file_associate_add instead.

Since :: 3.0

void* eio_file_associate_find	(	Eio_File *	ls,
		const char *	key
	)

Get the data associated during the filter callback inside the main loop.

Parameters:

ls	The Eio_File ls request currently calling the notify callback.
key	The key pointing to the data to retrieve.

Returns:: the data associated with the key or NULL if not found.

Since :: 3.0

Eina_Bool eio_file_cancel ( Eio_File * ls )

Cancel any Eio_File.

Parameters:

ls	The asynchronous I/O operation to cancel.

Returns:: EINA_FALSE if the destruction is delayed, EINA_TRUE if it's done.

This will cancel any kind of I/O operation and cleanup the mess. This means that it could take time to cancel an I/O.

Since :: 3.0

Eina_Bool eio_file_check ( Eio_File * ls )

Check if an Eio_File operation has been cancelled.

Parameters:

ls	The asynchronous I/O operation to check.

Returns:: EINA_TRUE if it was canceled, EINA_FALSE other wise.

In case of an error it also return EINA_TRUE.

Since :: 3.0

void* eio_file_container_get ( Eio_File * ls )

Return the container during EIO operation.

Parameters:

ls	The asynchronous I/O operation to retrieve container from.

Returns:: NULL if not available, a DIRP if it is.

This is only available and make sense in the thread callback, not in the mainloop.

Since :: 3.0

int eio_init ( void )

Initialize eio and all its required submodule.

Returns:: the current number of eio users.

Since :: 3.0

size_t eio_memory_burst_limit_get ( void )

Get the actual limit to the maximum amount of memory used.

Returns:: The current limit being set.

Since (EFL) :: 1.10

See also:: eio_memory_burst_limit_set

Since :: 3.0

void eio_memory_burst_limit_set ( size_t limit )

Set the limit to the maximum amount of memory used.

Parameters:

limit The actual limit to set.

Eio work by burst, allocating memory in a thread and moving it back to the main loop. This result in quite some huge memory usage if the main loop is to slow to cope with the speed of the thread. By setting this limit, the thread will block until enough memory has been freed to be below the limit again.

By default no limit is set and any value < 0 will mean no limit.

Note:: You should give at least a reasonable amount of memory or the thread might stall.

Since (EFL) :: 1.10

Since :: 3.0

int eio_shutdown ( void )

Shutdown eio and all its submodule if possible.

Returns:: the number of pending users of eio.

Since :: 3.0

Functions

Function Documentation