MMAL_PORT_PRIVATE_CORE_T Struct Reference

List of all members.

Public Attributes
VCOS_MUTEX_T	lock
VCOS_MUTEX_T	send_lock
VCOS_MUTEX_T	stats_lock
VCOS_MUTEX_T	connection_lock
MMAL_PORT_BH_CB_T	buffer_header_callback
int32_t	transit_buffer_headers
VCOS_MUTEX_T	transit_lock
VCOS_SEMAPHORE_T	transit_sema
MMAL_ES_FORMAT_T *	format_ptr_copy
MMAL_PORT_T *	connected_port
MMAL_BOOL_T	core_owns_connection
MMAL_POOL_T *	pool_for_connection
MMAL_BOOL_T	is_paused
MMAL_BUFFER_HEADER_T *	queue_first
MMAL_BUFFER_HEADER_T **	queue_last
MMAL_CORE_PORT_STATISTICS_T	stats
char *	name
unsigned int	name_size

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Detailed Description

Definition of the core's private structure for a port.

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Member Data Documentation

MMAL_PORT_BH_CB_T MMAL_PORT_PRIVATE_CORE_T::buffer_header_callback

Callback set by client to call when buffer headers need to be returned

MMAL_PORT_T* MMAL_PORT_PRIVATE_CORE_T::connected_port

Port to which this port is connected, or NULL if disconnected

VCOS_MUTEX_T MMAL_PORT_PRIVATE_CORE_T::connection_lock

Used to lock access to a connection

MMAL_BOOL_T MMAL_PORT_PRIVATE_CORE_T::core_owns_connection

Connection is handled by the core

MMAL_ES_FORMAT_T* MMAL_PORT_PRIVATE_CORE_T::format_ptr_copy

Copy of the public port format pointer, to detect accidental overwrites

MMAL_BOOL_T MMAL_PORT_PRIVATE_CORE_T::is_paused

Indicates whether the port is paused or not. Buffers received on a paused port will be queued instead of being sent to the component.

VCOS_MUTEX_T MMAL_PORT_PRIVATE_CORE_T::lock

Used to lock access to the port

char* MMAL_PORT_PRIVATE_CORE_T::name

Port name

MMAL_POOL_T* MMAL_PORT_PRIVATE_CORE_T::pool_for_connection

Pool of buffers used between connected ports - output port only

MMAL_BUFFER_HEADER_T* MMAL_PORT_PRIVATE_CORE_T::queue_first

Queue for buffers received from the client when in paused state

MMAL_BUFFER_HEADER_T** MMAL_PORT_PRIVATE_CORE_T::queue_last

Queue for buffers received from the client when in paused state

VCOS_MUTEX_T MMAL_PORT_PRIVATE_CORE_T::send_lock

Used to lock access while sending buffer to the port

MMAL_CORE_PORT_STATISTICS_T MMAL_PORT_PRIVATE_CORE_T::stats

Per-port statistics collected directly by the MMAL core

VCOS_MUTEX_T MMAL_PORT_PRIVATE_CORE_T::stats_lock

Used to lock access to the stats

int32_t MMAL_PORT_PRIVATE_CORE_T::transit_buffer_headers

Keeps track of the number of buffer headers currently in transit in this port

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The documentation for this struct was generated from the following file:

• /home/jvcleave/Desktop/RASPBERRY_PI/userland/interface/mmal/core/mmal_port.c