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_LWP_SUSPEND(2) NetBSD System Calls Manual _LWP_SUSPEND(2)
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_lwp_suspend, _lwp_continue -- suspend or continue a light-weight process
Standard C Library (libc, -lc)
_lwp_suspend() suspends execution of the LWP specified by lwp. Once an
LWP is suspended, subsequent calls to _lwp_suspend() have no effect. The
only way to resume execution of a suspended LWP is via _lwp_continue().
_lwp_continue() resumes execution of the LWP specified by lwp. Once an
LWP is resumed, subsequent calls to _lwp_continue() have no effect.
The _lwp_continue() and _lwp_suspend() functions return the value 0 if
successful; otherwise the value -1 is returned and the global variable
errno is set to indicate the error.
_lwp_suspend() and _lwp_continue() will fail if:
[ESRCH] No LWP can be found in the current process correspond-
ing to that specified by lwp.
_lwp_suspend() will fail if:
[EDEADLK] The LWP specified by lwp is the only LWP in the
The _lwp_create() system call first appeared in NetBSD 2.0.
NetBSD 9.99 December 4, 2022 NetBSD 9.99