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rfork_thread(3)

NAME

     rfork_thread -- create a rfork-based process thread

LIBRARY

     Standard C Library (libc, -lc)

SYNOPSIS

     #include <unistd.h>

     pid_t
     rfork_thread(int flags, void *stack, int (*func)(void *arg), void *arg);

DESCRIPTION

     The rfork_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

     fork(2), intro(2), minherit(2), rfork(2), vfork(2)

HISTORY

     The rfork_thread() function first appeared in FreeBSD 4.3.

FreeBSD 5.4			 July 29, 2000			   FreeBSD 5.4

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