sortix-mirror/libc/unistd/sfork.c

35 lines
1.2 KiB
C

/*
* Copyright (c) 2011, 2012, 2014 Jonas 'Sortie' Termansen.
*
* Permission to use, copy, modify, and distribute this software for any
* purpose with or without fee is hereby granted, provided that the above
* copyright notice and this permission notice appear in all copies.
*
* THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
* WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
* MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
* ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
* WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
* ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
* OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
*
* unistd/sfork.c
* Create a new task inheriting some properties from the current task.
*/
#include <signal.h>
#include <string.h>
#include <unistd.h>
pid_t __sfork(int flags, struct tfork* regs);
pid_t sfork(int flags)
{
struct tfork regs;
memset(&regs, 0, sizeof(regs));
regs.altstack.ss_flags = SS_DISABLE;
sigprocmask(SIG_SETMASK, NULL, &regs.sigmask);
regs.altstack.ss_flags = SS_DISABLE;
return __sfork(flags, &regs);
}