Result handling

Asynchronous result utilities More...

Files
file	result.h
	spa/utils/result.h

Macros
#define	SPA_API_RESULT   static inline
#define	SPA_ASYNC_BIT   (1 << 30)
#define	SPA_ASYNC_SEQ_MASK   (SPA_ASYNC_BIT - 1)
#define	SPA_ASYNC_MASK   (~SPA_ASYNC_SEQ_MASK)
#define	SPA_RESULT_IS_OK(res)
#define	SPA_RESULT_IS_ERROR(res)
#define	SPA_RESULT_IS_ASYNC(res)
#define	SPA_RESULT_ASYNC_SEQ(res)
#define	SPA_RESULT_RETURN_ASYNC(seq)

Functions
SPA_API_RESULT const char *	spa_strerror (int err)

Detailed Description

Asynchronous result utilities

Macro Definition Documentation

SPA_API_RESULT

#define SPA_API_RESULT   static inline

SPA_ASYNC_BIT

#define SPA_ASYNC_BIT   (1 << 30)

SPA_ASYNC_SEQ_MASK

#define SPA_ASYNC_SEQ_MASK   (SPA_ASYNC_BIT - 1)

SPA_ASYNC_MASK

#define SPA_ASYNC_MASK   (~SPA_ASYNC_SEQ_MASK)

SPA_RESULT_IS_OK

#define SPA_RESULT_IS_OK

(

res

)

Value:

((res) >= 0)

SPA_RESULT_IS_ERROR

#define SPA_RESULT_IS_ERROR

(

res

)

Value:

((res) < 0)

SPA_RESULT_IS_ASYNC

#define SPA_RESULT_IS_ASYNC

(

res

)

Value:

(((res) & SPA_ASYNC_MASK) == SPA_ASYNC_BIT)

SPA_RESULT_ASYNC_SEQ

#define SPA_RESULT_ASYNC_SEQ

(

res

)

Value:

((res) & SPA_ASYNC_SEQ_MASK)

SPA_RESULT_RETURN_ASYNC

#define SPA_RESULT_RETURN_ASYNC

(

seq

)

Value:

(SPA_ASYNC_BIT | SPA_RESULT_ASYNC_SEQ(seq))

Function Documentation

spa_strerror()

SPA_API_RESULT const char * spa_strerror

(

int

err

)

Examples

bluez-session.c, export-sink.c, export-source.c, export-spa-device.c, export-spa.c, gmain.c, local-v4l2.c, spa/examples/adapter-control.c, spa/examples/example-control.c, spa/examples/local-libcamera.c, spa/examples/local-v4l2.c, spa/examples/local-videotestsrc.c, video-play-fixate.c, video-play-pull.c, video-play-reneg.c, and video-play.c.