39 lines
1.1 KiB
C
39 lines
1.1 KiB
C
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#ifndef _SYS_UCONTEXT_H_
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#define _SYS_UCONTEXT_H_
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#include <sys/sigtypes.h>
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#include <machine/mcontext.h>
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typedef struct __ucontext ucontext_t;
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struct __ucontext {
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unsigned int uc_flags; /* Properties of ucontext */
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ucontext_t *uc_link; /* Next context to resume when current is finished */
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mcontext_t uc_mcontext; /* Machine state */
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sigset_t uc_sigmask; /* Signals blocked in this context */
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stack_t uc_stack; /* The stack used by this context */
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};
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#ifndef _UC_UCONTEXT_ALIGN
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#define _UC_UCONTEXT_ALIGN (~0)
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#endif
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#define UCF_SWAPPED 001 /* Context has been swapped in by swapcontext(3) */
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#define UCF_IGNFPU 002 /* Ignore FPU context by get or setcontext(3) */
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#define UCF_IGNSIGM 004 /* Ignore signal mask by get or setcontext(3) */
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#define NCARGS 6
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#ifdef __minix
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__BEGIN_DECLS
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void resumecontext(ucontext_t *ucp);
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/* These functions get and set ucontext structure through PM/kernel. They don't
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* manipulate the stack. */
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int getuctx(ucontext_t *ucp);
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int setuctx(const ucontext_t *ucp);
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__END_DECLS
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#endif /* __minix */
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#endif /* !_SYS_UCONTEXT_H_ */
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