diff options
| -rw-r--r-- | ev.pod | 9 |
1 files changed, 9 insertions, 0 deletions
@@ -3376,6 +3376,15 @@ additional extensions: =over 4 +=item C<void (*)(ev_watcher_type *, int revents)> must have compatible +calling conventions regardless of C<ev_watcher_type *>. + +Libev assumes not only that all watcher pointers have the same internal +structure (guaranteed by POSIX but not by ISO C for example), but it also +assumes that the same (machine) code can be used to call any watcher +callback: The watcher callbacks have different type signatures, but libev +calls them using an C<ev_watcher *> internally. + =item C<sig_atomic_t volatile> must be thread-atomic as well The type C<sig_atomic_t volatile> (or whatever is defined as |