ucontext.h File Reference

#include <stdint.h>
#include <signal.h>

Go to the source code of this file.

Data Structures
struct	mcontext_t
	ERT machine context type. More...
struct	ucontext_t
	ERT user context type. More...

Macros
#define	getcontext(ctx)   (getmcontext(&(ctx)->uc_mcontext))
	Get user context marco. More...
#define	setcontext(ctx)   (setmcontext(&(ctx)->uc_mcontext))
	Set user context marco. More...

Functions
int	getmcontext (mcontext_t *ctx)
	Get machine context. More...
int	setmcontext (const mcontext_t *ctx)
	Set machine context. More...
void	makecontext (ucontext_t *ctx, void(*func)(), int argc,...)
	Make user context. More...
int	swapcontext (ucontext_t *octx, const ucontext_t *ctx)
	Swap user context. More...

Macro Definition Documentation

getcontext

#define getcontext

(

ctx

)

(getmcontext(&(ctx)->uc_mcontext))

Get user context marco.

setcontext

#define setcontext

(

ctx

)

(setmcontext(&(ctx)->uc_mcontext))

Set user context marco.

Function Documentation

getmcontext()

int getmcontext

(

mcontext_t *

ctx

)

Get machine context.

Parameters

ctx	Machine context.

Returns

0 when context is saved, 1 when context is restored.

makecontext()

void makecontext	(	ucontext_t *	ctx,
		void(*)()	func,
		int	argc,
			...
	)

Make user context.

(TODO: Make context issues)

Parameters

ctx	User context.
func	Function to run.
argc	Number of arguments.

setmcontext()

int setmcontext

(

const mcontext_t *

ctx

)

Set machine context.

Parameters

ctx	Machine context.

Returns

This function does not actually return.

swapcontext()

int swapcontext	(	ucontext_t *	octx,
		const ucontext_t *	ctx
	)

Swap user context.

Parameters

octx	Old user context to save.
ctx	User context to restore.