minix/include/sys/ucontext.h
Thomas Veerman bef0e3eb63 - Add support for the ucontext system calls (getcontext, setcontext,
swapcontext, and makecontext).
- Fix VM to not erroneously think the stack segment and data segment have
  collided when a user-space thread invokes brk().
- Add test51 to test ucontext functionality.
- Add man pages for ucontext system calls.
2010-03-12 15:58:41 +00:00

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C

#ifndef _SYS_UCONTEXT_H
#define _SYS_UCONTEXT_H 1
#include <signal.h>
#include <machine/mcontext.h>
#define NCARGS 6
#define UCF_SWAPPED 001 /* Context has been swapped in by swapcontext(3) */
#define UCF_IGNFPU 002 /* Ignore FPU context by get or setcontext(3) */
#define UCF_IGNSIGM 004 /* Ignore signal mask by get or setcontext(3) */
typedef struct __ucontext ucontext_t;
struct __ucontext {
unsigned int uc_flags; /* Properties of ucontext */
ucontext_t *uc_link; /* Next context to resume when current is finished */
mcontext_t uc_mcontext; /* Machine state */
sigset_t uc_sigmask; /* Signals blocked in this context */
stack_t uc_stack; /* The stack used by this context */
};
#endif /* _SYS_UCONTEXT_H */