1_U_DYN_CANCEL(3)             Programming Library              _U_DYN_CANCEL(3)
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NAME

6       _U_dyn_cancel -- cancel unwind-info for dynamically generated code
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SYNOPSIS

9       #include <libunwind.h>
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11       void _U_dyn_cancel(unw_dyn_info_t *di);
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DESCRIPTION

14       The _U_dyn_cancel() routine cancels the registration of the unwind-info
15       for a dynamically generated procedure. Argument di is  the  pointer  to
16       the   unw_dyn_info_t   structure   that   describes   the   procedure's
17       unwind-info.
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19       The _U_dyn_cancel() routine is guaranteed to execute in  constant  time
20       (in  the  absence  of contention from concurrent calls to _U_dyn_regis‐
21       ter() or _U_dyn_cancel()).
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THREAD AND SIGNAL SAFETY

24       _U_dyn_cancel() is thread-safe but not safe to use from a  signal  han‐
25       dler.
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SEE ALSO

28       libunwind-dynamic(3), _U_dyn_register(3)
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AUTHOR

31       David Mosberger-Tang
32       Hewlett-Packard Labs
33       Palo-Alto, CA 94304
34       Email: davidm@hpl.hp.com
35       WWW: http://www.hpl.hp.com/research/linux/libunwind/.
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39Programming Library            09 December 2003               _U_DYN_CANCEL(3)