Lines Matching refs:value
38 * Process Completion Status:: How to interpret the status value
96 programs to execute. The return value is @code{-1} if it wasn't
101 If the @var{command} argument is a null pointer, a return value of zero
120 @w{@code{system (NULL)}}; if the return value is nonzero, a command
158 call returns. You can use the return value from @code{fork} or
175 Each process is named by a @dfn{process ID} number, a value of type
235 thread. The returned value is obtained from the Linux kernel and is
265 returns a value of @code{0} in the child process and returns the child's
268 If process creation failed, @code{fork} returns a value of @code{-1} in
390 used to provide a value for the @code{argv} argument to the @code{main}
470 causes the currently executing program to go away completely. A value
580 value of @code{-1} or @code{WAIT_ANY} requests status information for
581 any child process; a value of @code{0} or @code{WAIT_MYPGRP} requests
583 calling process; and any other negative value @minus{} @var{pgid}
594 The @var{options} argument is a bit mask. Its value should be the
612 The return value is normally the process ID of the child process whose
623 A value of @code{-1} is returned in case of error. The following
636 An invalid value was provided for the @var{options} argument.
647 This constant macro (whose value is @code{-1}) specifies that
652 This constant (with value @code{0}) specifies that @code{waitpid} should
659 together to obtain a value to use as the argument.
745 If the exit status value (@pxref{Program Termination}) of the child
746 process is zero, then the status value reported by @code{waitpid} or
748 encoded in the returned status value using the following macros.
755 This macro returns a nonzero value if the child process terminated
763 low-order 8 bits of the exit status value from the child process.
770 This macro returns a nonzero value if the child process terminated
785 This macro returns a nonzero value if the child process terminated
792 This macro returns a nonzero value if the child process is stopped.
874 to execute and a second time to supply a value for @code{argv[0]}.