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74 lines
2.3 KiB
Plaintext
74 lines
2.3 KiB
Plaintext
.\" Copyright (c) 2001-2003 The Open Group, All Rights Reserved
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.TH "<ucontext.h>" P 2003 "IEEE/The Open Group" "POSIX Programmer's Manual"
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.\" <ucontext.h>
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.SH NAME
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ucontext.h \- user context
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.SH SYNOPSIS
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.LP
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\fB#include <ucontext.h> \fP
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.SH DESCRIPTION
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.LP
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The \fI<ucontext.h>\fP header shall define the \fBmcontext_t\fP type
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through \fBtypedef\fP.
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.LP
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The \fI<ucontext.h>\fP header shall define the \fBucontext_t\fP type
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as a structure that shall include at least the
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following members:
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.sp
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.RS
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.nf
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\fBucontext_t *uc_link \fP Pointer to the context that is resumed \fB
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\fP when this context returns. \fB
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sigset_t uc_sigmask \fP The set of signals that are blocked when this \fB
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\fP context is active. \fB
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stack_t uc_stack \fP The stack used by this context. \fB
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mcontext_t uc_mcontext\fP A machine-specific representation of the saved \fB
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\fP context. \fB
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\fP
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.fi
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.RE
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.LP
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The types \fBsigset_t\fP and \fBstack_t\fP shall be defined as in
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\fI<signal.h>\fP .
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.LP
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The following shall be declared as functions and may also be defined
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as macros, Function prototypes shall be provided.
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.sp
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.RS
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.nf
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\fBint getcontext(ucontext_t *);
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int setcontext(const ucontext_t *);
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void makecontext(ucontext_t *, void (*)(void), int, ...);
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int swapcontext(ucontext_t *restrict, const ucontext_t *restrict);
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\fP
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.fi
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.RE
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.LP
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\fIThe following sections are informative.\fP
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.SH APPLICATION USAGE
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.LP
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None.
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.SH RATIONALE
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.LP
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None.
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.SH FUTURE DIRECTIONS
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.LP
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None.
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.SH SEE ALSO
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.LP
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\fI<signal.h>\fP , the System Interfaces volume of IEEE\ Std\ 1003.1-2001,
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\fIgetcontext\fP(), \fImakecontext\fP(), \fIsigaction\fP(), \fIsigprocmask\fP(),
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\fIsigaltstack\fP()
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.SH COPYRIGHT
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Portions of this text are reprinted and reproduced in electronic form
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from IEEE Std 1003.1, 2003 Edition, Standard for Information Technology
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-- Portable Operating System Interface (POSIX), The Open Group Base
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Specifications Issue 6, Copyright (C) 2001-2003 by the Institute of
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Electrical and Electronics Engineers, Inc and The Open Group. In the
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event of any discrepancy between this version and the original IEEE and
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The Open Group Standard, the original IEEE and The Open Group Standard
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is the referee document. The original Standard can be obtained online at
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http://www.opengroup.org/unix/online.html .
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