NAME
rfork_thread —
create a rfork-based process
thread
LIBRARY
library “libc”
SYNOPSIS
#include
<unistd.h>
int
rfork_thread(int
flags, void *stack,
int (*func)(void *arg),
void *arg);
DESCRIPTION
Therfork_thread()
function is a helper function for
rfork(2). It arranges for a new process to be created and the child
process will call the specified function with the specified argument, while
running on the supplied stack.
Using this function should avoid the need to implement complex stack swap code.
RETURN VALUES
Upon successful completion, rfork_thread()
returns the process ID of the child process to the parent process.
Otherwise, a value of -1 is returned to the parent process, no child process
is created, and the global variable errno is set to
indicate the error.
The child process context is not aware of a return from the
rfork_thread() function as it begins executing
directly with the supplied function.
ERRORS
See rfork(2) for error return codes.
SEE ALSO
HISTORY
The rfork_thread() function first appeared
in FreeBSD 4.3.