_lwp_suspend(2)
NAME
_lwp_suspend, _lwp_continue - continue or suspend LWP execu-
tion
SYNOPSIS
#include <sys/lwp.h>
int _lwp_suspend(lwpid_t target_lwp);
int _lwp_continue(lwpid_t target_lwp);
DESCRIPTION
The _lwp_suspend() function immediately suspends the execu-
tion of the LWP specified by target_lwp. On successful
return from _lwp_suspend(), target_lwp is no longer execut-
ing. Once a thread is suspended, subsequent calls to
_lwp_suspend() have no affect.
The _lwp_continue() function resumes the execution of a
suspended LWP. Once a suspended LWP is continued, subsequent
calls to _lwp_continue() have no effect.
A suspended LWP will not be awakened by a signal. The signal
stays pending until the execution of the LWP is resumed by
_lwp_continue().
RETURN VALUES
Upon successful completion, 0 is returned. A non-zero value
indicates an error.
ERRORS
If the following condition occurs, _lwp_suspend() and
_lwp_continue() fail and return the corresponding value:
ESRCH The target_lwpid argument cannot be found in the
current process.
ATTRIBUTES
See attributes(5) for descriptions of the following attri-
butes:
____________________________________________________________
| ATTRIBUTE TYPE | ATTRIBUTE VALUE |
|_____________________________|_____________________________|
| MT-Level | Async-Signal-Safe |
|_____________________________|_____________________________|
SEE ALSO
_lwp_create(2), attributes(5)
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