46 lines
1.1 KiB
C
46 lines
1.1 KiB
C
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/*
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* Copyright (c) 2020 Ariadne Conill <ariadne@dereferenced.org>
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*
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* Permission to use, copy, modify, and/or distribute this software for any
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* purpose with or without fee is hereby granted, provided that the above
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* copyright notice and this permission notice appear in all copies.
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*
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* This software is provided 'as is' and without any warranty, express or
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* implied. In no event shall the authors be liable for any damages arising
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* from the use of this software.
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*/
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#include <stddef.h>
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#include <libucontext/libucontext.h>
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#ifdef FREESTANDING
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# error libucontext_posix cannot be built in FREESTANDING mode.
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#endif
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int
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getcontext(libucontext_ucontext_t *ucp)
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{
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if (sigprocmask(SIG_SETMASK, NULL, &ucp->uc_sigmask))
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return -1;
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return libucontext_getcontext(ucp);
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}
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int
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setcontext(const libucontext_ucontext_t *ucp)
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{
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if (sigprocmask(SIG_SETMASK, &ucp->uc_sigmask, NULL))
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return -1;
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return libucontext_setcontext(ucp);
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}
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int
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swapcontext(libucontext_ucontext_t *oucp, const libucontext_ucontext_t *ucp)
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{
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if (sigprocmask(SIG_SETMASK, &ucp->uc_sigmask, &oucp->uc_sigmask))
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return -1;
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return libucontext_swapcontext(oucp, ucp);
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}
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