System

I/O, clock, polling, timer, and signal interfaces More...

Files
file	system.h
	spa/support/system.h

Data Structures
struct	spa_system
struct	spa_poll_event
struct	spa_system_methods

Macros
#define	SPA_TYPE_INTERFACE_System   SPA_TYPE_INFO_INTERFACE_BASE "System"
	a collection of core system functions
#define	SPA_TYPE_INTERFACE_DataSystem   SPA_TYPE_INFO_INTERFACE_BASE "DataSystem"
#define	SPA_VERSION_SYSTEM   0
#define	SPA_IO_IN   (1 << 0)
#define	SPA_IO_OUT   (1 << 2)
#define	SPA_IO_ERR   (1 << 3)
#define	SPA_IO_HUP   (1 << 4)
#define	SPA_FD_CLOEXEC   (1<<0)
#define	SPA_FD_NONBLOCK   (1<<1)
#define	SPA_FD_EVENT_SEMAPHORE   (1<<2)
#define	SPA_FD_TIMER_ABSTIME   (1<<3)
#define	SPA_FD_TIMER_CANCEL_ON_SET   (1<<4)
#define	SPA_VERSION_SYSTEM_METHODS   0
#define	spa_system_method_r(o, method, version, ...)
#define	spa_system_read(s, ...)   spa_system_method_r(s,read,0,__VA_ARGS__)
#define	spa_system_write(s, ...)   spa_system_method_r(s,write,0,__VA_ARGS__)
#define	spa_system_ioctl(s, ...)   spa_system_method_r(s,ioctl,0,__VA_ARGS__)
#define	spa_system_close(s, ...)   spa_system_method_r(s,close,0,__VA_ARGS__)
#define	spa_system_clock_gettime(s, ...)   spa_system_method_r(s,clock_gettime,0,__VA_ARGS__)
#define	spa_system_clock_getres(s, ...)   spa_system_method_r(s,clock_getres,0,__VA_ARGS__)
#define	spa_system_pollfd_create(s, ...)   spa_system_method_r(s,pollfd_create,0,__VA_ARGS__)
#define	spa_system_pollfd_add(s, ...)   spa_system_method_r(s,pollfd_add,0,__VA_ARGS__)
#define	spa_system_pollfd_mod(s, ...)   spa_system_method_r(s,pollfd_mod,0,__VA_ARGS__)
#define	spa_system_pollfd_del(s, ...)   spa_system_method_r(s,pollfd_del,0,__VA_ARGS__)
#define	spa_system_pollfd_wait(s, ...)   spa_system_method_r(s,pollfd_wait,0,__VA_ARGS__)
#define	spa_system_timerfd_create(s, ...)   spa_system_method_r(s,timerfd_create,0,__VA_ARGS__)
#define	spa_system_timerfd_settime(s, ...)   spa_system_method_r(s,timerfd_settime,0,__VA_ARGS__)
#define	spa_system_timerfd_gettime(s, ...)   spa_system_method_r(s,timerfd_gettime,0,__VA_ARGS__)
#define	spa_system_timerfd_read(s, ...)   spa_system_method_r(s,timerfd_read,0,__VA_ARGS__)
#define	spa_system_eventfd_create(s, ...)   spa_system_method_r(s,eventfd_create,0,__VA_ARGS__)
#define	spa_system_eventfd_write(s, ...)   spa_system_method_r(s,eventfd_write,0,__VA_ARGS__)
#define	spa_system_eventfd_read(s, ...)   spa_system_method_r(s,eventfd_read,0,__VA_ARGS__)
#define	spa_system_signalfd_create(s, ...)   spa_system_method_r(s,signalfd_create,0,__VA_ARGS__)
#define	spa_system_signalfd_read(s, ...)   spa_system_method_r(s,signalfd_read,0,__VA_ARGS__)

Detailed Description

I/O, clock, polling, timer, and signal interfaces

Macro Definition Documentation

SPA_TYPE_INTERFACE_System

#define SPA_TYPE_INTERFACE_System   SPA_TYPE_INFO_INTERFACE_BASE "System"

a collection of core system functions

Examples

local-v4l2.c, spa/examples/adapter-control.c, spa/examples/example-control.c, spa/examples/local-libcamera.c, and spa/examples/local-v4l2.c.

SPA_TYPE_INTERFACE_DataSystem

#define SPA_TYPE_INTERFACE_DataSystem   SPA_TYPE_INFO_INTERFACE_BASE "DataSystem"

Examples

spa/examples/adapter-control.c, and spa/examples/example-control.c.

SPA_VERSION_SYSTEM

#define SPA_VERSION_SYSTEM   0

SPA_IO_IN

#define SPA_IO_IN   (1 << 0)

SPA_IO_OUT

#define SPA_IO_OUT   (1 << 2)

SPA_IO_ERR

#define SPA_IO_ERR   (1 << 3)

SPA_IO_HUP

#define SPA_IO_HUP   (1 << 4)

SPA_FD_CLOEXEC

#define SPA_FD_CLOEXEC   (1<<0)

SPA_FD_NONBLOCK

#define SPA_FD_NONBLOCK   (1<<1)

SPA_FD_EVENT_SEMAPHORE

#define SPA_FD_EVENT_SEMAPHORE   (1<<2)

SPA_FD_TIMER_ABSTIME

#define SPA_FD_TIMER_ABSTIME   (1<<3)

SPA_FD_TIMER_CANCEL_ON_SET

#define SPA_FD_TIMER_CANCEL_ON_SET   (1<<4)

SPA_VERSION_SYSTEM_METHODS

#define SPA_VERSION_SYSTEM_METHODS   0

spa_system_method_r

#define spa_system_method_r	(		o,
			method,
			version,
			... )

spa_system_read

#define spa_system_read	(		s,
			... )   spa_system_method_r(s,read,0,__VA_ARGS__)

See also

spa_system_methods.read

spa_system_write

#define spa_system_write	(		s,
			... )   spa_system_method_r(s,write,0,__VA_ARGS__)

See also

spa_system_methods.write

spa_system_ioctl

#define spa_system_ioctl	(		s,
			... )   spa_system_method_r(s,ioctl,0,__VA_ARGS__)

See also

spa_system_methods.ioctl

spa_system_close

#define spa_system_close	(		s,
			... )   spa_system_method_r(s,close,0,__VA_ARGS__)

See also

spa_system_methods.close

spa_system_clock_gettime

#define spa_system_clock_gettime	(		s,
			... )   spa_system_method_r(s,clock_gettime,0,__VA_ARGS__)

See also

spa_system_methods.clock_gettime

spa_system_clock_getres

#define spa_system_clock_getres	(		s,
			... )   spa_system_method_r(s,clock_getres,0,__VA_ARGS__)

See also

spa_system_methods.clock_getres

spa_system_pollfd_create

#define spa_system_pollfd_create	(		s,
			... )   spa_system_method_r(s,pollfd_create,0,__VA_ARGS__)

See also

spa_system_methods.pollfd_create

spa_system_pollfd_add

#define spa_system_pollfd_add	(		s,
			... )   spa_system_method_r(s,pollfd_add,0,__VA_ARGS__)

See also

spa_system_methods.pollfd_add

spa_system_pollfd_mod

#define spa_system_pollfd_mod	(		s,
			... )   spa_system_method_r(s,pollfd_mod,0,__VA_ARGS__)

See also

spa_system_methods.pollfd_mod

spa_system_pollfd_del

#define spa_system_pollfd_del	(		s,
			... )   spa_system_method_r(s,pollfd_del,0,__VA_ARGS__)

See also

spa_system_methods.pollfd_del

spa_system_pollfd_wait

#define spa_system_pollfd_wait	(		s,
			... )   spa_system_method_r(s,pollfd_wait,0,__VA_ARGS__)

See also

spa_system_methods.pollfd_wait

spa_system_timerfd_create

#define spa_system_timerfd_create	(		s,
			... )   spa_system_method_r(s,timerfd_create,0,__VA_ARGS__)

See also

spa_system_methods.timerfd_create

spa_system_timerfd_settime

#define spa_system_timerfd_settime	(		s,
			... )   spa_system_method_r(s,timerfd_settime,0,__VA_ARGS__)

See also

spa_system_methods.timerfd_settime

spa_system_timerfd_gettime

#define spa_system_timerfd_gettime	(		s,
			... )   spa_system_method_r(s,timerfd_gettime,0,__VA_ARGS__)

See also

spa_system_methods.timerfd_gettime

spa_system_timerfd_read

#define spa_system_timerfd_read	(		s,
			... )   spa_system_method_r(s,timerfd_read,0,__VA_ARGS__)

See also

spa_system_methods.timerfd_read

spa_system_eventfd_create

#define spa_system_eventfd_create	(		s,
			... )   spa_system_method_r(s,eventfd_create,0,__VA_ARGS__)

See also

spa_system_methods.eventfd_create

spa_system_eventfd_write

#define spa_system_eventfd_write	(		s,
			... )   spa_system_method_r(s,eventfd_write,0,__VA_ARGS__)

See also

spa_system_methods.eventfd_write

spa_system_eventfd_read

#define spa_system_eventfd_read	(		s,
			... )   spa_system_method_r(s,eventfd_read,0,__VA_ARGS__)

See also

spa_system_methods.eventfd_read

spa_system_signalfd_create

#define spa_system_signalfd_create	(		s,
			... )   spa_system_method_r(s,signalfd_create,0,__VA_ARGS__)

See also

spa_system_methods.signalfd_create

spa_system_signalfd_read

#define spa_system_signalfd_read	(		s,
			... )   spa_system_method_r(s,signalfd_read,0,__VA_ARGS__)

See also

spa_system_methods.signalfd_read