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OpenSolaris 2009.06 - man page for _lwp_suspend (opensolaris section 2)

_lwp_suspend(2) 				     System Calls				      _lwp_suspend(2)

NAME
_lwp_suspend, _lwp_continue - continue or suspend LWP execution
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 execution of the LWP specified by target_lwp. On success- ful return from _lwp_suspend(), target_lwp is no longer executing. 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, sub- sequent 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 attributes: +-----------------------------+-----------------------------+ | ATTRIBUTE TYPE | ATTRIBUTE VALUE | +-----------------------------+-----------------------------+ |MT-Level |Async-Signal-Safe | +-----------------------------+-----------------------------+
SEE ALSO
attributes(5) SunOS 5.11 13 Aug 2001 _lwp_suspend(2)


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