Since the bufferevents' events are now EV_FINALIZE (name pending),
they won't deadlock. To clean up properly, though, we must use the
finalization feature.
This patch also split bufferevent deallocation into an "unlink" step
that happens fast, and a "destruct" step that happens after
finalization.
More work is needed: there needs to be a way to specify a finalizer
for the bufferevent's argument itself. Also, this finalizer business
makes lots of the reference counting we were doing unnecessary.
Also, more testing is needed.
Back when deferred_cb stuff had its own queue, the queue was always
executed, but we never ran more than 16 callbacks per iteration.
That made for two problems:
1: Because deferred_cb stuff would always run, and had no priority,
it could cause priority inversion.
2: It doesn't respect the max_dispatch_interval code.
Then, when I refactored deferred_cb to be a special case of
event_callback, that solved the above issues, but made for two more
issues:
3: Because deferred_cb stuff would always get the default priority,
it could could low-priority bufferevents to get too much priority.
4: With code like bufferevent_pair, it's easy to get into a
situation where two deferreds keep adding one another, preventing
the event loop from ever actually scanning for more events.
This commit fixes the above by giving deferreds a better notion of
priorities, and by limiting the number of deferreds that can be
added to the _current_ loop iteration's active queues. (Extra
deferreds are put into the active_later state.)
That isn't an all-purpose priority inversion solution, of course: for
that, you may need to mess around with max_dispatch_interval.
We haven't had a convention for naming internal functions in -internal.h
versus naming visible functions in include/**.h. This patch changes every
function declared in a -internal.h file to be named ending with an
underscore.
Static function names are unaffected, since there's no risk of calling them
from outside Libevent.
This is an automatic conversion. The script that produced was made by
running the following script over the output of
ctags --c-kinds=pf -o - *-internal.h | cut -f 1 | sort| uniq
(GNU ctags was required.)
=====
#!/usr/bin/perl -w -n
use strict;
BEGIN { print "#!/usr/bin/perl -w -i -p\n\n"; }
chomp;
my $ident = $_;
next if ($ident =~ /_$/);
next if ($ident =~ /^TAILQ/);
my $better = "${ident}_";
print "s/(?<![A-Za-z0-9_])$ident(?![A-Za-z0-9_])/$better/g;\n";
=== And then running the script below that it generated over all
=== the .c and .h files again
#!/usr/bin/perl -w -i -p
s/(?<![A-Za-z0-9_])bufferevent_async_can_connect(?![A-Za-z0-9_])/bufferevent_async_can_connect_/g;
s/(?<![A-Za-z0-9_])bufferevent_async_connect(?![A-Za-z0-9_])/bufferevent_async_connect_/g;
s/(?<![A-Za-z0-9_])bufferevent_async_new(?![A-Za-z0-9_])/bufferevent_async_new_/g;
s/(?<![A-Za-z0-9_])bufferevent_async_set_connected(?![A-Za-z0-9_])/bufferevent_async_set_connected_/g;
s/(?<![A-Za-z0-9_])bufferevent_decref(?![A-Za-z0-9_])/bufferevent_decref_/g;
s/(?<![A-Za-z0-9_])bufferevent_disable_hard(?![A-Za-z0-9_])/bufferevent_disable_hard_/g;
s/(?<![A-Za-z0-9_])bufferevent_enable_locking(?![A-Za-z0-9_])/bufferevent_enable_locking_/g;
s/(?<![A-Za-z0-9_])bufferevent_incref(?![A-Za-z0-9_])/bufferevent_incref_/g;
s/(?<![A-Za-z0-9_])bufferevent_init_common(?![A-Za-z0-9_])/bufferevent_init_common_/g;
s/(?<![A-Za-z0-9_])bufferevent_remove_from_rate_limit_group_internal(?![A-Za-z0-9_])/bufferevent_remove_from_rate_limit_group_internal_/g;
s/(?<![A-Za-z0-9_])bufferevent_suspend_read(?![A-Za-z0-9_])/bufferevent_suspend_read_/g;
s/(?<![A-Za-z0-9_])bufferevent_suspend_write(?![A-Za-z0-9_])/bufferevent_suspend_write_/g;
s/(?<![A-Za-z0-9_])bufferevent_unsuspend_read(?![A-Za-z0-9_])/bufferevent_unsuspend_read_/g;
s/(?<![A-Za-z0-9_])bufferevent_unsuspend_write(?![A-Za-z0-9_])/bufferevent_unsuspend_write_/g;
s/(?<![A-Za-z0-9_])evbuffer_commit_read(?![A-Za-z0-9_])/evbuffer_commit_read_/g;
s/(?<![A-Za-z0-9_])evbuffer_commit_write(?![A-Za-z0-9_])/evbuffer_commit_write_/g;
s/(?<![A-Za-z0-9_])evbuffer_invoke_callbacks(?![A-Za-z0-9_])/evbuffer_invoke_callbacks_/g;
s/(?<![A-Za-z0-9_])evbuffer_launch_read(?![A-Za-z0-9_])/evbuffer_launch_read_/g;
s/(?<![A-Za-z0-9_])evbuffer_launch_write(?![A-Za-z0-9_])/evbuffer_launch_write_/g;
s/(?<![A-Za-z0-9_])evbuffer_overlapped_new(?![A-Za-z0-9_])/evbuffer_overlapped_new_/g;
s/(?<![A-Za-z0-9_])evbuffer_set_parent(?![A-Za-z0-9_])/evbuffer_set_parent_/g;
s/(?<![A-Za-z0-9_])event_active_nolock(?![A-Za-z0-9_])/event_active_nolock_/g;
s/(?<![A-Za-z0-9_])event_base_add_virtual(?![A-Za-z0-9_])/event_base_add_virtual_/g;
s/(?<![A-Za-z0-9_])event_base_assert_ok(?![A-Za-z0-9_])/event_base_assert_ok_/g;
s/(?<![A-Za-z0-9_])event_base_del_virtual(?![A-Za-z0-9_])/event_base_del_virtual_/g;
s/(?<![A-Za-z0-9_])event_base_get_deferred_cb_queue(?![A-Za-z0-9_])/event_base_get_deferred_cb_queue_/g;
s/(?<![A-Za-z0-9_])event_base_get_iocp(?![A-Za-z0-9_])/event_base_get_iocp_/g;
s/(?<![A-Za-z0-9_])event_base_start_iocp(?![A-Za-z0-9_])/event_base_start_iocp_/g;
s/(?<![A-Za-z0-9_])event_base_stop_iocp(?![A-Za-z0-9_])/event_base_stop_iocp_/g;
s/(?<![A-Za-z0-9_])event_changelist_add(?![A-Za-z0-9_])/event_changelist_add_/g;
s/(?<![A-Za-z0-9_])event_changelist_del(?![A-Za-z0-9_])/event_changelist_del_/g;
s/(?<![A-Za-z0-9_])event_changelist_freemem(?![A-Za-z0-9_])/event_changelist_freemem_/g;
s/(?<![A-Za-z0-9_])event_changelist_init(?![A-Za-z0-9_])/event_changelist_init_/g;
s/(?<![A-Za-z0-9_])event_changelist_remove_all(?![A-Za-z0-9_])/event_changelist_remove_all_/g;
s/(?<![A-Za-z0-9_])event_deferred_cb_cancel(?![A-Za-z0-9_])/event_deferred_cb_cancel_/g;
s/(?<![A-Za-z0-9_])event_deferred_cb_init(?![A-Za-z0-9_])/event_deferred_cb_init_/g;
s/(?<![A-Za-z0-9_])event_deferred_cb_queue_init(?![A-Za-z0-9_])/event_deferred_cb_queue_init_/g;
s/(?<![A-Za-z0-9_])event_deferred_cb_schedule(?![A-Za-z0-9_])/event_deferred_cb_schedule_/g;
s/(?<![A-Za-z0-9_])event_get_win32_extension_fns(?![A-Za-z0-9_])/event_get_win32_extension_fns_/g;
s/(?<![A-Za-z0-9_])event_iocp_activate_overlapped(?![A-Za-z0-9_])/event_iocp_activate_overlapped_/g;
s/(?<![A-Za-z0-9_])event_iocp_port_associate(?![A-Za-z0-9_])/event_iocp_port_associate_/g;
s/(?<![A-Za-z0-9_])event_iocp_port_launch(?![A-Za-z0-9_])/event_iocp_port_launch_/g;
s/(?<![A-Za-z0-9_])event_iocp_shutdown(?![A-Za-z0-9_])/event_iocp_shutdown_/g;
s/(?<![A-Za-z0-9_])event_overlapped_init(?![A-Za-z0-9_])/event_overlapped_init_/g;
s/(?<![A-Za-z0-9_])evhttp_connection_connect(?![A-Za-z0-9_])/evhttp_connection_connect_/g;
s/(?<![A-Za-z0-9_])evhttp_connection_fail(?![A-Za-z0-9_])/evhttp_connection_fail_/g;
s/(?<![A-Za-z0-9_])evhttp_connection_reset(?![A-Za-z0-9_])/evhttp_connection_reset_/g;
s/(?<![A-Za-z0-9_])evhttp_parse_firstline(?![A-Za-z0-9_])/evhttp_parse_firstline_/g;
s/(?<![A-Za-z0-9_])evhttp_parse_headers(?![A-Za-z0-9_])/evhttp_parse_headers_/g;
s/(?<![A-Za-z0-9_])evhttp_response_code(?![A-Za-z0-9_])/evhttp_response_code_/g;
s/(?<![A-Za-z0-9_])evhttp_send_page(?![A-Za-z0-9_])/evhttp_send_page_/g;
s/(?<![A-Za-z0-9_])evhttp_start_read(?![A-Za-z0-9_])/evhttp_start_read_/g;
s/(?<![A-Za-z0-9_])EVLOCK_TRY_LOCK(?![A-Za-z0-9_])/EVLOCK_TRY_LOCK_/g;
s/(?<![A-Za-z0-9_])evmap_check_integrity(?![A-Za-z0-9_])/evmap_check_integrity_/g;
s/(?<![A-Za-z0-9_])evmap_delete_all(?![A-Za-z0-9_])/evmap_delete_all_/g;
s/(?<![A-Za-z0-9_])evmap_foreach_event(?![A-Za-z0-9_])/evmap_foreach_event_/g;
s/(?<![A-Za-z0-9_])evmap_io_active(?![A-Za-z0-9_])/evmap_io_active_/g;
s/(?<![A-Za-z0-9_])evmap_io_add(?![A-Za-z0-9_])/evmap_io_add_/g;
s/(?<![A-Za-z0-9_])evmap_io_clear(?![A-Za-z0-9_])/evmap_io_clear_/g;
s/(?<![A-Za-z0-9_])evmap_io_del(?![A-Za-z0-9_])/evmap_io_del_/g;
s/(?<![A-Za-z0-9_])evmap_io_get_fdinfo(?![A-Za-z0-9_])/evmap_io_get_fdinfo_/g;
s/(?<![A-Za-z0-9_])evmap_io_initmap(?![A-Za-z0-9_])/evmap_io_initmap_/g;
s/(?<![A-Za-z0-9_])evmap_reinit(?![A-Za-z0-9_])/evmap_reinit_/g;
s/(?<![A-Za-z0-9_])evmap_signal_active(?![A-Za-z0-9_])/evmap_signal_active_/g;
s/(?<![A-Za-z0-9_])evmap_signal_add(?![A-Za-z0-9_])/evmap_signal_add_/g;
s/(?<![A-Za-z0-9_])evmap_signal_clear(?![A-Za-z0-9_])/evmap_signal_clear_/g;
s/(?<![A-Za-z0-9_])evmap_signal_del(?![A-Za-z0-9_])/evmap_signal_del_/g;
s/(?<![A-Za-z0-9_])evmap_signal_initmap(?![A-Za-z0-9_])/evmap_signal_initmap_/g;
s/(?<![A-Za-z0-9_])evrpc_hook_associate_meta(?![A-Za-z0-9_])/evrpc_hook_associate_meta_/g;
s/(?<![A-Za-z0-9_])evrpc_hook_context_free(?![A-Za-z0-9_])/evrpc_hook_context_free_/g;
s/(?<![A-Za-z0-9_])evrpc_hook_meta_new(?![A-Za-z0-9_])/evrpc_hook_meta_new_/g;
s/(?<![A-Za-z0-9_])evrpc_reqstate_free(?![A-Za-z0-9_])/evrpc_reqstate_free_/g;
s/(?<![A-Za-z0-9_])evsig_dealloc(?![A-Za-z0-9_])/evsig_dealloc_/g;
s/(?<![A-Za-z0-9_])evsig_init(?![A-Za-z0-9_])/evsig_init_/g;
s/(?<![A-Za-z0-9_])evsig_set_base(?![A-Za-z0-9_])/evsig_set_base_/g;
s/(?<![A-Za-z0-9_])ev_token_bucket_get_tick(?![A-Za-z0-9_])/ev_token_bucket_get_tick_/g;
s/(?<![A-Za-z0-9_])ev_token_bucket_init(?![A-Za-z0-9_])/ev_token_bucket_init_/g;
s/(?<![A-Za-z0-9_])ev_token_bucket_update(?![A-Za-z0-9_])/ev_token_bucket_update_/g;
s/(?<![A-Za-z0-9_])evutil_accept4(?![A-Za-z0-9_])/evutil_accept4_/g;
s/(?<![A-Za-z0-9_])evutil_addrinfo_append(?![A-Za-z0-9_])/evutil_addrinfo_append_/g;
s/(?<![A-Za-z0-9_])evutil_adjust_hints_for_addrconfig(?![A-Za-z0-9_])/evutil_adjust_hints_for_addrconfig_/g;
s/(?<![A-Za-z0-9_])evutil_ersatz_socketpair(?![A-Za-z0-9_])/evutil_ersatz_socketpair_/g;
s/(?<![A-Za-z0-9_])evutil_eventfd(?![A-Za-z0-9_])/evutil_eventfd_/g;
s/(?<![A-Za-z0-9_])evutil_format_sockaddr_port(?![A-Za-z0-9_])/evutil_format_sockaddr_port_/g;
s/(?<![A-Za-z0-9_])evutil_getaddrinfo_async(?![A-Za-z0-9_])/evutil_getaddrinfo_async_/g;
s/(?<![A-Za-z0-9_])evutil_getaddrinfo_common(?![A-Za-z0-9_])/evutil_getaddrinfo_common_/g;
s/(?<![A-Za-z0-9_])evutil_getenv(?![A-Za-z0-9_])/evutil_getenv_/g;
s/(?<![A-Za-z0-9_])evutil_hex_char_to_int(?![A-Za-z0-9_])/evutil_hex_char_to_int_/g;
s/(?<![A-Za-z0-9_])EVUTIL_ISALNUM(?![A-Za-z0-9_])/EVUTIL_ISALNUM_/g;
s/(?<![A-Za-z0-9_])EVUTIL_ISALPHA(?![A-Za-z0-9_])/EVUTIL_ISALPHA_/g;
s/(?<![A-Za-z0-9_])EVUTIL_ISDIGIT(?![A-Za-z0-9_])/EVUTIL_ISDIGIT_/g;
s/(?<![A-Za-z0-9_])EVUTIL_ISLOWER(?![A-Za-z0-9_])/EVUTIL_ISLOWER_/g;
s/(?<![A-Za-z0-9_])EVUTIL_ISPRINT(?![A-Za-z0-9_])/EVUTIL_ISPRINT_/g;
s/(?<![A-Za-z0-9_])EVUTIL_ISSPACE(?![A-Za-z0-9_])/EVUTIL_ISSPACE_/g;
s/(?<![A-Za-z0-9_])EVUTIL_ISUPPER(?![A-Za-z0-9_])/EVUTIL_ISUPPER_/g;
s/(?<![A-Za-z0-9_])EVUTIL_ISXDIGIT(?![A-Za-z0-9_])/EVUTIL_ISXDIGIT_/g;
s/(?<![A-Za-z0-9_])evutil_load_windows_system_library(?![A-Za-z0-9_])/evutil_load_windows_system_library_/g;
s/(?<![A-Za-z0-9_])evutil_make_internal_pipe(?![A-Za-z0-9_])/evutil_make_internal_pipe_/g;
s/(?<![A-Za-z0-9_])evutil_new_addrinfo(?![A-Za-z0-9_])/evutil_new_addrinfo_/g;
s/(?<![A-Za-z0-9_])evutil_open_closeonexec(?![A-Za-z0-9_])/evutil_open_closeonexec_/g;
s/(?<![A-Za-z0-9_])evutil_read_file(?![A-Za-z0-9_])/evutil_read_file_/g;
s/(?<![A-Za-z0-9_])evutil_resolve(?![A-Za-z0-9_])/evutil_resolve_/g;
s/(?<![A-Za-z0-9_])evutil_set_evdns_getaddrinfo_fn(?![A-Za-z0-9_])/evutil_set_evdns_getaddrinfo_fn_/g;
s/(?<![A-Za-z0-9_])evutil_sockaddr_is_loopback(?![A-Za-z0-9_])/evutil_sockaddr_is_loopback_/g;
s/(?<![A-Za-z0-9_])evutil_socket(?![A-Za-z0-9_])/evutil_socket_/g;
s/(?<![A-Za-z0-9_])evutil_socket_connect(?![A-Za-z0-9_])/evutil_socket_connect_/g;
s/(?<![A-Za-z0-9_])evutil_socket_finished_connecting(?![A-Za-z0-9_])/evutil_socket_finished_connecting_/g;
s/(?<![A-Za-z0-9_])EVUTIL_TOLOWER(?![A-Za-z0-9_])/EVUTIL_TOLOWER_/g;
s/(?<![A-Za-z0-9_])EVUTIL_TOUPPER(?![A-Za-z0-9_])/EVUTIL_TOUPPER_/g;
s/(?<![A-Za-z0-9_])evutil_tv_to_msec(?![A-Za-z0-9_])/evutil_tv_to_msec_/g;
s/(?<![A-Za-z0-9_])evutil_usleep(?![A-Za-z0-9_])/evutil_usleep_/g;
s/(?<![A-Za-z0-9_])ht_improve_hash(?![A-Za-z0-9_])/ht_improve_hash_/g;
s/(?<![A-Za-z0-9_])ht_string_hash(?![A-Za-z0-9_])/ht_string_hash_/g;
s/(?<![A-Za-z0-9_])min_heap_adjust(?![A-Za-z0-9_])/min_heap_adjust_/g;
s/(?<![A-Za-z0-9_])min_heap_ctor(?![A-Za-z0-9_])/min_heap_ctor_/g;
s/(?<![A-Za-z0-9_])min_heap_dtor(?![A-Za-z0-9_])/min_heap_dtor_/g;
s/(?<![A-Za-z0-9_])min_heap_elem_init(?![A-Za-z0-9_])/min_heap_elem_init_/g;
s/(?<![A-Za-z0-9_])min_heap_elt_is_top(?![A-Za-z0-9_])/min_heap_elt_is_top_/g;
s/(?<![A-Za-z0-9_])min_heap_empty(?![A-Za-z0-9_])/min_heap_empty_/g;
s/(?<![A-Za-z0-9_])min_heap_erase(?![A-Za-z0-9_])/min_heap_erase_/g;
s/(?<![A-Za-z0-9_])min_heap_pop(?![A-Za-z0-9_])/min_heap_pop_/g;
s/(?<![A-Za-z0-9_])min_heap_push(?![A-Za-z0-9_])/min_heap_push_/g;
s/(?<![A-Za-z0-9_])min_heap_reserve(?![A-Za-z0-9_])/min_heap_reserve_/g;
s/(?<![A-Za-z0-9_])min_heap_size(?![A-Za-z0-9_])/min_heap_size_/g;
s/(?<![A-Za-z0-9_])min_heap_top(?![A-Za-z0-9_])/min_heap_top_/g;
These are reserved in C. We'd been erroneously using them to indicate
internal use.
Instead, we now use a trailing underscore whenever we'd been using a leading
underscore.
This is an automatic conversion. The script that produced was made by
running the following script over the output of
git ls-tree -r --name-only HEAD | grep '\.[ch]$' | \
xargs ctags --c-kinds=defglmpstuvx -o - | grep '^_' | \
cut -f 1 | sort| uniq
(GNU ctags was required.)
=====
#!/usr/bin/perl -w -n
use strict;
BEGIN { print "#!/usr/bin/perl -w -i -p\n\n"; }
chomp;
next if (/^__func__/ or
/^_FILE_OFFSET_BITS/ or
/^_FORTIFY_SOURCE/ or
/^_GNU_SOURCE/ or
/^_WIN32/ or
/^_DARWIN_UNLIMITED/ or
/^_FILE_OFFSET_BITS/ or
/^_LARGEFILE64_SOURCE/ or
/^_LFS64_LARGEFILE/ or
/^__cdecl/ or
/^__attribute__/ or
/^__func__/ or
/^_SYS_TREE_H_/);
my $ident = $_;
my $better = $ident;
$better =~ s/^_//;
if ($ident !~ /EVENT_LOG_/) {
$better = "${better}_";
}
print "s/(?<![A-Za-z0-9_])$ident(?![A-Za-z0-9_])/$better/g;\n";
=== And then running the script below that it generated over all
=== the .c and .h files again
#!/usr/bin/perl -w -i -p
s/(?<![A-Za-z0-9_])_ARC4_LOCK(?![A-Za-z0-9_])/ARC4_LOCK_/g;
s/(?<![A-Za-z0-9_])_ARC4_UNLOCK(?![A-Za-z0-9_])/ARC4_UNLOCK_/g;
s/(?<![A-Za-z0-9_])_bev_group_random_element(?![A-Za-z0-9_])/bev_group_random_element_/g;
s/(?<![A-Za-z0-9_])_bev_group_refill_callback(?![A-Za-z0-9_])/bev_group_refill_callback_/g;
s/(?<![A-Za-z0-9_])_bev_group_suspend_reading(?![A-Za-z0-9_])/bev_group_suspend_reading_/g;
s/(?<![A-Za-z0-9_])_bev_group_suspend_writing(?![A-Za-z0-9_])/bev_group_suspend_writing_/g;
s/(?<![A-Za-z0-9_])_bev_group_unsuspend_reading(?![A-Za-z0-9_])/bev_group_unsuspend_reading_/g;
s/(?<![A-Za-z0-9_])_bev_group_unsuspend_writing(?![A-Za-z0-9_])/bev_group_unsuspend_writing_/g;
s/(?<![A-Za-z0-9_])_bev_refill_callback(?![A-Za-z0-9_])/bev_refill_callback_/g;
s/(?<![A-Za-z0-9_])_bufferevent_add_event(?![A-Za-z0-9_])/bufferevent_add_event_/g;
s/(?<![A-Za-z0-9_])_bufferevent_cancel_all(?![A-Za-z0-9_])/bufferevent_cancel_all_/g;
s/(?<![A-Za-z0-9_])_bufferevent_decref_and_unlock(?![A-Za-z0-9_])/bufferevent_decref_and_unlock_/g;
s/(?<![A-Za-z0-9_])_bufferevent_decrement_read_buckets(?![A-Za-z0-9_])/bufferevent_decrement_read_buckets_/g;
s/(?<![A-Za-z0-9_])_bufferevent_decrement_write_buckets(?![A-Za-z0-9_])/bufferevent_decrement_write_buckets_/g;
s/(?<![A-Za-z0-9_])_bufferevent_del_generic_timeout_cbs(?![A-Za-z0-9_])/bufferevent_del_generic_timeout_cbs_/g;
s/(?<![A-Za-z0-9_])_bufferevent_generic_adj_timeouts(?![A-Za-z0-9_])/bufferevent_generic_adj_timeouts_/g;
s/(?<![A-Za-z0-9_])_bufferevent_get_read_max(?![A-Za-z0-9_])/bufferevent_get_read_max_/g;
s/(?<![A-Za-z0-9_])_bufferevent_get_rlim_max(?![A-Za-z0-9_])/bufferevent_get_rlim_max_/g;
s/(?<![A-Za-z0-9_])_bufferevent_get_write_max(?![A-Za-z0-9_])/bufferevent_get_write_max_/g;
s/(?<![A-Za-z0-9_])_bufferevent_incref_and_lock(?![A-Za-z0-9_])/bufferevent_incref_and_lock_/g;
s/(?<![A-Za-z0-9_])_bufferevent_init_generic_timeout_cbs(?![A-Za-z0-9_])/bufferevent_init_generic_timeout_cbs_/g;
s/(?<![A-Za-z0-9_])_bufferevent_ratelim_init(?![A-Za-z0-9_])/bufferevent_ratelim_init_/g;
s/(?<![A-Za-z0-9_])_bufferevent_run_eventcb(?![A-Za-z0-9_])/bufferevent_run_eventcb_/g;
s/(?<![A-Za-z0-9_])_bufferevent_run_readcb(?![A-Za-z0-9_])/bufferevent_run_readcb_/g;
s/(?<![A-Za-z0-9_])_bufferevent_run_writecb(?![A-Za-z0-9_])/bufferevent_run_writecb_/g;
s/(?<![A-Za-z0-9_])_ev(?![A-Za-z0-9_])/ev_/g;
s/(?<![A-Za-z0-9_])_evbuffer_chain_pin(?![A-Za-z0-9_])/evbuffer_chain_pin_/g;
s/(?<![A-Za-z0-9_])_evbuffer_chain_unpin(?![A-Za-z0-9_])/evbuffer_chain_unpin_/g;
s/(?<![A-Za-z0-9_])_evbuffer_decref_and_unlock(?![A-Za-z0-9_])/evbuffer_decref_and_unlock_/g;
s/(?<![A-Za-z0-9_])_evbuffer_expand_fast(?![A-Za-z0-9_])/evbuffer_expand_fast_/g;
s/(?<![A-Za-z0-9_])_evbuffer_incref(?![A-Za-z0-9_])/evbuffer_incref_/g;
s/(?<![A-Za-z0-9_])_evbuffer_incref_and_lock(?![A-Za-z0-9_])/evbuffer_incref_and_lock_/g;
s/(?<![A-Za-z0-9_])_EVBUFFER_IOVEC_IS_NATIVE(?![A-Za-z0-9_])/EVBUFFER_IOVEC_IS_NATIVE_/g;
s/(?<![A-Za-z0-9_])_evbuffer_overlapped_get_fd(?![A-Za-z0-9_])/evbuffer_overlapped_get_fd_/g;
s/(?<![A-Za-z0-9_])_evbuffer_overlapped_set_fd(?![A-Za-z0-9_])/evbuffer_overlapped_set_fd_/g;
s/(?<![A-Za-z0-9_])_evbuffer_read_setup_vecs(?![A-Za-z0-9_])/evbuffer_read_setup_vecs_/g;
s/(?<![A-Za-z0-9_])_evbuffer_validate(?![A-Za-z0-9_])/evbuffer_validate_/g;
s/(?<![A-Za-z0-9_])_evdns_log(?![A-Za-z0-9_])/evdns_log_/g;
s/(?<![A-Za-z0-9_])_evdns_nameserver_add_impl(?![A-Za-z0-9_])/evdns_nameserver_add_impl_/g;
s/(?<![A-Za-z0-9_])_EVENT_CONFIG_H_(?![A-Za-z0-9_])/EVENT_CONFIG_H__/g;
s/(?<![A-Za-z0-9_])_event_debug_assert_is_setup(?![A-Za-z0-9_])/event_debug_assert_is_setup_/g;
s/(?<![A-Za-z0-9_])_event_debug_assert_not_added(?![A-Za-z0-9_])/event_debug_assert_not_added_/g;
s/(?<![A-Za-z0-9_])_event_debug_get_logging_mask(?![A-Za-z0-9_])/event_debug_get_logging_mask_/g;
s/(?<![A-Za-z0-9_])_event_debug_logging_mask(?![A-Za-z0-9_])/event_debug_logging_mask_/g;
s/(?<![A-Za-z0-9_])_event_debug_map_lock(?![A-Za-z0-9_])/event_debug_map_lock_/g;
s/(?<![A-Za-z0-9_])_event_debug_mode_on(?![A-Za-z0-9_])/event_debug_mode_on_/g;
s/(?<![A-Za-z0-9_])_event_debug_note_add(?![A-Za-z0-9_])/event_debug_note_add_/g;
s/(?<![A-Za-z0-9_])_event_debug_note_del(?![A-Za-z0-9_])/event_debug_note_del_/g;
s/(?<![A-Za-z0-9_])_event_debug_note_setup(?![A-Za-z0-9_])/event_debug_note_setup_/g;
s/(?<![A-Za-z0-9_])_event_debug_note_teardown(?![A-Za-z0-9_])/event_debug_note_teardown_/g;
s/(?<![A-Za-z0-9_])_event_debugx(?![A-Za-z0-9_])/event_debugx_/g;
s/(?<![A-Za-z0-9_])_EVENT_DEFINED_LISTENTRY(?![A-Za-z0-9_])/EVENT_DEFINED_LISTENTRY_/g;
s/(?<![A-Za-z0-9_])_EVENT_DEFINED_TQENTRY(?![A-Za-z0-9_])/EVENT_DEFINED_TQENTRY_/g;
s/(?<![A-Za-z0-9_])_EVENT_DEFINED_TQHEAD(?![A-Za-z0-9_])/EVENT_DEFINED_TQHEAD_/g;
s/(?<![A-Za-z0-9_])_EVENT_DNS_USE_FTIME_FOR_ID(?![A-Za-z0-9_])/EVENT_DNS_USE_FTIME_FOR_ID_/g;
s/(?<![A-Za-z0-9_])_EVENT_ERR_ABORT(?![A-Za-z0-9_])/EVENT_ERR_ABORT_/g;
s/(?<![A-Za-z0-9_])_EVENT_EVCONFIG__PRIVATE_H(?![A-Za-z0-9_])/EVENT_EVCONFIG__PRIVATE_H_/g;
s/(?<![A-Za-z0-9_])_event_iocp_port_unlock_and_free(?![A-Za-z0-9_])/event_iocp_port_unlock_and_free_/g;
s/(?<![A-Za-z0-9_])_EVENT_LOG_DEBUG(?![A-Za-z0-9_])/EVENT_LOG_DEBUG/g;
s/(?<![A-Za-z0-9_])_EVENT_LOG_ERR(?![A-Za-z0-9_])/EVENT_LOG_ERR/g;
s/(?<![A-Za-z0-9_])_EVENT_LOG_MSG(?![A-Za-z0-9_])/EVENT_LOG_MSG/g;
s/(?<![A-Za-z0-9_])_EVENT_LOG_WARN(?![A-Za-z0-9_])/EVENT_LOG_WARN/g;
s/(?<![A-Za-z0-9_])_event_strlcpy(?![A-Za-z0-9_])/event_strlcpy_/g;
s/(?<![A-Za-z0-9_])_EVHTTP_REQ_UNKNOWN(?![A-Za-z0-9_])/EVHTTP_REQ_UNKNOWN_/g;
s/(?<![A-Za-z0-9_])_EVLOCK_SORTLOCKS(?![A-Za-z0-9_])/EVLOCK_SORTLOCKS_/g;
s/(?<![A-Za-z0-9_])_evrpc_hooks(?![A-Za-z0-9_])/evrpc_hooks_/g;
s/(?<![A-Za-z0-9_])_evsig_restore_handler(?![A-Za-z0-9_])/evsig_restore_handler_/g;
s/(?<![A-Za-z0-9_])_evsig_set_handler(?![A-Za-z0-9_])/evsig_set_handler_/g;
s/(?<![A-Za-z0-9_])_evthread_cond_fns(?![A-Za-z0-9_])/evthread_cond_fns_/g;
s/(?<![A-Za-z0-9_])_evthread_debug_get_real_lock(?![A-Za-z0-9_])/evthread_debug_get_real_lock_/g;
s/(?<![A-Za-z0-9_])_evthread_id_fn(?![A-Za-z0-9_])/evthread_id_fn_/g;
s/(?<![A-Za-z0-9_])_evthreadimpl_cond_alloc(?![A-Za-z0-9_])/evthreadimpl_cond_alloc_/g;
s/(?<![A-Za-z0-9_])_evthreadimpl_cond_free(?![A-Za-z0-9_])/evthreadimpl_cond_free_/g;
s/(?<![A-Za-z0-9_])_evthreadimpl_cond_signal(?![A-Za-z0-9_])/evthreadimpl_cond_signal_/g;
s/(?<![A-Za-z0-9_])_evthreadimpl_cond_wait(?![A-Za-z0-9_])/evthreadimpl_cond_wait_/g;
s/(?<![A-Za-z0-9_])_evthreadimpl_get_id(?![A-Za-z0-9_])/evthreadimpl_get_id_/g;
s/(?<![A-Za-z0-9_])_evthreadimpl_is_lock_debugging_enabled(?![A-Za-z0-9_])/evthreadimpl_is_lock_debugging_enabled_/g;
s/(?<![A-Za-z0-9_])_evthreadimpl_lock_alloc(?![A-Za-z0-9_])/evthreadimpl_lock_alloc_/g;
s/(?<![A-Za-z0-9_])_evthreadimpl_lock_free(?![A-Za-z0-9_])/evthreadimpl_lock_free_/g;
s/(?<![A-Za-z0-9_])_evthreadimpl_locking_enabled(?![A-Za-z0-9_])/evthreadimpl_locking_enabled_/g;
s/(?<![A-Za-z0-9_])_evthreadimpl_lock_lock(?![A-Za-z0-9_])/evthreadimpl_lock_lock_/g;
s/(?<![A-Za-z0-9_])_evthreadimpl_lock_unlock(?![A-Za-z0-9_])/evthreadimpl_lock_unlock_/g;
s/(?<![A-Za-z0-9_])_evthread_is_debug_lock_held(?![A-Za-z0-9_])/evthread_is_debug_lock_held_/g;
s/(?<![A-Za-z0-9_])_evthread_lock_debugging_enabled(?![A-Za-z0-9_])/evthread_lock_debugging_enabled_/g;
s/(?<![A-Za-z0-9_])_evthread_lock_fns(?![A-Za-z0-9_])/evthread_lock_fns_/g;
s/(?<![A-Za-z0-9_])_EVUTIL_NIL_CONDITION(?![A-Za-z0-9_])/EVUTIL_NIL_CONDITION_/g;
s/(?<![A-Za-z0-9_])_EVUTIL_NIL_STMT(?![A-Za-z0-9_])/EVUTIL_NIL_STMT_/g;
s/(?<![A-Za-z0-9_])_evutil_weakrand(?![A-Za-z0-9_])/evutil_weakrand_/g;
s/(?<![A-Za-z0-9_])_http_close_detection(?![A-Za-z0-9_])/http_close_detection_/g;
s/(?<![A-Za-z0-9_])_http_connection_test(?![A-Za-z0-9_])/http_connection_test_/g;
s/(?<![A-Za-z0-9_])_http_incomplete_test(?![A-Za-z0-9_])/http_incomplete_test_/g;
s/(?<![A-Za-z0-9_])_http_stream_in_test(?![A-Za-z0-9_])/http_stream_in_test_/g;
s/(?<![A-Za-z0-9_])_internal(?![A-Za-z0-9_])/internal_/g;
s/(?<![A-Za-z0-9_])_mm_free_fn(?![A-Za-z0-9_])/mm_free_fn_/g;
s/(?<![A-Za-z0-9_])_mm_malloc_fn(?![A-Za-z0-9_])/mm_malloc_fn_/g;
s/(?<![A-Za-z0-9_])_mm_realloc_fn(?![A-Za-z0-9_])/mm_realloc_fn_/g;
s/(?<![A-Za-z0-9_])_original_cond_fns(?![A-Za-z0-9_])/original_cond_fns_/g;
s/(?<![A-Za-z0-9_])_original_lock_fns(?![A-Za-z0-9_])/original_lock_fns_/g;
s/(?<![A-Za-z0-9_])_rpc_hook_ctx(?![A-Za-z0-9_])/rpc_hook_ctx_/g;
s/(?<![A-Za-z0-9_])_SYS_QUEUE_H_(?![A-Za-z0-9_])/SYS_QUEUE_H__/g;
s/(?<![A-Za-z0-9_])_t(?![A-Za-z0-9_])/t_/g;
s/(?<![A-Za-z0-9_])_t32(?![A-Za-z0-9_])/t32_/g;
s/(?<![A-Za-z0-9_])_test_ai_eq(?![A-Za-z0-9_])/test_ai_eq_/g;
s/(?<![A-Za-z0-9_])_URI_ADD(?![A-Za-z0-9_])/URI_ADD_/g;
s/(?<![A-Za-z0-9_])_URI_FREE_STR(?![A-Za-z0-9_])/URI_FREE_STR_/g;
s/(?<![A-Za-z0-9_])_URI_SET_STR(?![A-Za-z0-9_])/URI_SET_STR_/g;
s/(?<![A-Za-z0-9_])_warn_helper(?![A-Za-z0-9_])/warn_helper_/g;
C reserves all identifiers beginning with an underscore for system
use. But we had been mangling our autoconf identifiers with the
prefix "_EVENT_" to avoid conflict with other programs.
Instead, we will now use the prefix "EVENT__". With any luck, the
double-underscore will still hint "here be dragons" to anybody
tempted to think that event-config.h is a stable api.
This is an automatically generated patch. The script that produced
it was made by running this script over config.h.in:
=====
#!/usr/bin/perl -w
# Run this on config.h.in
use strict;
my %macros = ();
while (<>) {
if (/^# *undef +([A-Za-z0-9_]+)/) {
$macros{$1} = 1;
}
}
print "#!/usr/bin/perl -w -i -p\n\n";
for my $k (sort keys %macros) {
print "s/(?<![A-Za-z0-9_])_EVENT_$k(?![A-Za-z0-9_])/EVENT__$k/g;\n";
}
== And the script that it generated was then run over all .c and .h files:
#!/usr/bin/perl -w -i -p
s/(?<![A-Za-z0-9_])_EVENT_DISABLE_DEBUG_MODE(?![A-Za-z0-9_])/EVENT__DISABLE_DEBUG_MODE/g;
s/(?<![A-Za-z0-9_])_EVENT_DISABLE_MM_REPLACEMENT(?![A-Za-z0-9_])/EVENT__DISABLE_MM_REPLACEMENT/g;
s/(?<![A-Za-z0-9_])_EVENT_DISABLE_THREAD_SUPPORT(?![A-Za-z0-9_])/EVENT__DISABLE_THREAD_SUPPORT/g;
s/(?<![A-Za-z0-9_])_EVENT_HAVE_ACCEPT4(?![A-Za-z0-9_])/EVENT__HAVE_ACCEPT4/g;
s/(?<![A-Za-z0-9_])_EVENT_HAVE_ARC4RANDOM(?![A-Za-z0-9_])/EVENT__HAVE_ARC4RANDOM/g;
s/(?<![A-Za-z0-9_])_EVENT_HAVE_ARC4RANDOM_BUF(?![A-Za-z0-9_])/EVENT__HAVE_ARC4RANDOM_BUF/g;
s/(?<![A-Za-z0-9_])_EVENT_HAVE_ARPA_INET_H(?![A-Za-z0-9_])/EVENT__HAVE_ARPA_INET_H/g;
s/(?<![A-Za-z0-9_])_EVENT_HAVE_CLOCK_GETTIME(?![A-Za-z0-9_])/EVENT__HAVE_CLOCK_GETTIME/g;
s/(?<![A-Za-z0-9_])_EVENT_HAVE_DECL_CTL_KERN(?![A-Za-z0-9_])/EVENT__HAVE_DECL_CTL_KERN/g;
s/(?<![A-Za-z0-9_])_EVENT_HAVE_DECL_KERN_ARND(?![A-Za-z0-9_])/EVENT__HAVE_DECL_KERN_ARND/g;
s/(?<![A-Za-z0-9_])_EVENT_HAVE_DECL_KERN_RANDOM(?![A-Za-z0-9_])/EVENT__HAVE_DECL_KERN_RANDOM/g;
s/(?<![A-Za-z0-9_])_EVENT_HAVE_DECL_RANDOM_UUID(?![A-Za-z0-9_])/EVENT__HAVE_DECL_RANDOM_UUID/g;
s/(?<![A-Za-z0-9_])_EVENT_HAVE_DEVPOLL(?![A-Za-z0-9_])/EVENT__HAVE_DEVPOLL/g;
s/(?<![A-Za-z0-9_])_EVENT_HAVE_DLFCN_H(?![A-Za-z0-9_])/EVENT__HAVE_DLFCN_H/g;
s/(?<![A-Za-z0-9_])_EVENT_HAVE_EPOLL(?![A-Za-z0-9_])/EVENT__HAVE_EPOLL/g;
s/(?<![A-Za-z0-9_])_EVENT_HAVE_EPOLL_CREATE1(?![A-Za-z0-9_])/EVENT__HAVE_EPOLL_CREATE1/g;
s/(?<![A-Za-z0-9_])_EVENT_HAVE_EPOLL_CTL(?![A-Za-z0-9_])/EVENT__HAVE_EPOLL_CTL/g;
s/(?<![A-Za-z0-9_])_EVENT_HAVE_EVENTFD(?![A-Za-z0-9_])/EVENT__HAVE_EVENTFD/g;
s/(?<![A-Za-z0-9_])_EVENT_HAVE_EVENT_PORTS(?![A-Za-z0-9_])/EVENT__HAVE_EVENT_PORTS/g;
s/(?<![A-Za-z0-9_])_EVENT_HAVE_FCNTL(?![A-Za-z0-9_])/EVENT__HAVE_FCNTL/g;
s/(?<![A-Za-z0-9_])_EVENT_HAVE_FCNTL_H(?![A-Za-z0-9_])/EVENT__HAVE_FCNTL_H/g;
s/(?<![A-Za-z0-9_])_EVENT_HAVE_FD_MASK(?![A-Za-z0-9_])/EVENT__HAVE_FD_MASK/g;
s/(?<![A-Za-z0-9_])_EVENT_HAVE_GETADDRINFO(?![A-Za-z0-9_])/EVENT__HAVE_GETADDRINFO/g;
s/(?<![A-Za-z0-9_])_EVENT_HAVE_GETEGID(?![A-Za-z0-9_])/EVENT__HAVE_GETEGID/g;
s/(?<![A-Za-z0-9_])_EVENT_HAVE_GETEUID(?![A-Za-z0-9_])/EVENT__HAVE_GETEUID/g;
s/(?<![A-Za-z0-9_])_EVENT_HAVE_GETHOSTBYNAME_R(?![A-Za-z0-9_])/EVENT__HAVE_GETHOSTBYNAME_R/g;
s/(?<![A-Za-z0-9_])_EVENT_HAVE_GETHOSTBYNAME_R_3_ARG(?![A-Za-z0-9_])/EVENT__HAVE_GETHOSTBYNAME_R_3_ARG/g;
s/(?<![A-Za-z0-9_])_EVENT_HAVE_GETHOSTBYNAME_R_5_ARG(?![A-Za-z0-9_])/EVENT__HAVE_GETHOSTBYNAME_R_5_ARG/g;
s/(?<![A-Za-z0-9_])_EVENT_HAVE_GETHOSTBYNAME_R_6_ARG(?![A-Za-z0-9_])/EVENT__HAVE_GETHOSTBYNAME_R_6_ARG/g;
s/(?<![A-Za-z0-9_])_EVENT_HAVE_GETIFADDRS(?![A-Za-z0-9_])/EVENT__HAVE_GETIFADDRS/g;
s/(?<![A-Za-z0-9_])_EVENT_HAVE_GETNAMEINFO(?![A-Za-z0-9_])/EVENT__HAVE_GETNAMEINFO/g;
s/(?<![A-Za-z0-9_])_EVENT_HAVE_GETPROTOBYNUMBER(?![A-Za-z0-9_])/EVENT__HAVE_GETPROTOBYNUMBER/g;
s/(?<![A-Za-z0-9_])_EVENT_HAVE_GETSERVBYNAME(?![A-Za-z0-9_])/EVENT__HAVE_GETSERVBYNAME/g;
s/(?<![A-Za-z0-9_])_EVENT_HAVE_GETTIMEOFDAY(?![A-Za-z0-9_])/EVENT__HAVE_GETTIMEOFDAY/g;
s/(?<![A-Za-z0-9_])_EVENT_HAVE_IFADDRS_H(?![A-Za-z0-9_])/EVENT__HAVE_IFADDRS_H/g;
s/(?<![A-Za-z0-9_])_EVENT_HAVE_INET_ATON(?![A-Za-z0-9_])/EVENT__HAVE_INET_ATON/g;
s/(?<![A-Za-z0-9_])_EVENT_HAVE_INET_NTOP(?![A-Za-z0-9_])/EVENT__HAVE_INET_NTOP/g;
s/(?<![A-Za-z0-9_])_EVENT_HAVE_INET_PTON(?![A-Za-z0-9_])/EVENT__HAVE_INET_PTON/g;
s/(?<![A-Za-z0-9_])_EVENT_HAVE_INTTYPES_H(?![A-Za-z0-9_])/EVENT__HAVE_INTTYPES_H/g;
s/(?<![A-Za-z0-9_])_EVENT_HAVE_ISSETUGID(?![A-Za-z0-9_])/EVENT__HAVE_ISSETUGID/g;
s/(?<![A-Za-z0-9_])_EVENT_HAVE_KQUEUE(?![A-Za-z0-9_])/EVENT__HAVE_KQUEUE/g;
s/(?<![A-Za-z0-9_])_EVENT_HAVE_LIBZ(?![A-Za-z0-9_])/EVENT__HAVE_LIBZ/g;
s/(?<![A-Za-z0-9_])_EVENT_HAVE_MEMORY_H(?![A-Za-z0-9_])/EVENT__HAVE_MEMORY_H/g;
s/(?<![A-Za-z0-9_])_EVENT_HAVE_MMAP(?![A-Za-z0-9_])/EVENT__HAVE_MMAP/g;
s/(?<![A-Za-z0-9_])_EVENT_HAVE_NANOSLEEP(?![A-Za-z0-9_])/EVENT__HAVE_NANOSLEEP/g;
s/(?<![A-Za-z0-9_])_EVENT_HAVE_NETDB_H(?![A-Za-z0-9_])/EVENT__HAVE_NETDB_H/g;
s/(?<![A-Za-z0-9_])_EVENT_HAVE_NETINET_IN6_H(?![A-Za-z0-9_])/EVENT__HAVE_NETINET_IN6_H/g;
s/(?<![A-Za-z0-9_])_EVENT_HAVE_NETINET_IN_H(?![A-Za-z0-9_])/EVENT__HAVE_NETINET_IN_H/g;
s/(?<![A-Za-z0-9_])_EVENT_HAVE_NETINET_TCP_H(?![A-Za-z0-9_])/EVENT__HAVE_NETINET_TCP_H/g;
s/(?<![A-Za-z0-9_])_EVENT_HAVE_OPENSSL(?![A-Za-z0-9_])/EVENT__HAVE_OPENSSL/g;
s/(?<![A-Za-z0-9_])_EVENT_HAVE_PIPE(?![A-Za-z0-9_])/EVENT__HAVE_PIPE/g;
s/(?<![A-Za-z0-9_])_EVENT_HAVE_PIPE2(?![A-Za-z0-9_])/EVENT__HAVE_PIPE2/g;
s/(?<![A-Za-z0-9_])_EVENT_HAVE_POLL(?![A-Za-z0-9_])/EVENT__HAVE_POLL/g;
s/(?<![A-Za-z0-9_])_EVENT_HAVE_POLL_H(?![A-Za-z0-9_])/EVENT__HAVE_POLL_H/g;
s/(?<![A-Za-z0-9_])_EVENT_HAVE_PORT_CREATE(?![A-Za-z0-9_])/EVENT__HAVE_PORT_CREATE/g;
s/(?<![A-Za-z0-9_])_EVENT_HAVE_PORT_H(?![A-Za-z0-9_])/EVENT__HAVE_PORT_H/g;
s/(?<![A-Za-z0-9_])_EVENT_HAVE_PTHREAD(?![A-Za-z0-9_])/EVENT__HAVE_PTHREAD/g;
s/(?<![A-Za-z0-9_])_EVENT_HAVE_PTHREADS(?![A-Za-z0-9_])/EVENT__HAVE_PTHREADS/g;
s/(?<![A-Za-z0-9_])_EVENT_HAVE_PUTENV(?![A-Za-z0-9_])/EVENT__HAVE_PUTENV/g;
s/(?<![A-Za-z0-9_])_EVENT_HAVE_SA_FAMILY_T(?![A-Za-z0-9_])/EVENT__HAVE_SA_FAMILY_T/g;
s/(?<![A-Za-z0-9_])_EVENT_HAVE_SELECT(?![A-Za-z0-9_])/EVENT__HAVE_SELECT/g;
s/(?<![A-Za-z0-9_])_EVENT_HAVE_SENDFILE(?![A-Za-z0-9_])/EVENT__HAVE_SENDFILE/g;
s/(?<![A-Za-z0-9_])_EVENT_HAVE_SETENV(?![A-Za-z0-9_])/EVENT__HAVE_SETENV/g;
s/(?<![A-Za-z0-9_])_EVENT_HAVE_SETFD(?![A-Za-z0-9_])/EVENT__HAVE_SETFD/g;
s/(?<![A-Za-z0-9_])_EVENT_HAVE_SETRLIMIT(?![A-Za-z0-9_])/EVENT__HAVE_SETRLIMIT/g;
s/(?<![A-Za-z0-9_])_EVENT_HAVE_SIGACTION(?![A-Za-z0-9_])/EVENT__HAVE_SIGACTION/g;
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s/(?<![A-Za-z0-9_])_EVENT_HAVE_STRUCT_ADDRINFO(?![A-Za-z0-9_])/EVENT__HAVE_STRUCT_ADDRINFO/g;
s/(?<![A-Za-z0-9_])_EVENT_HAVE_STRUCT_IN6_ADDR(?![A-Za-z0-9_])/EVENT__HAVE_STRUCT_IN6_ADDR/g;
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s/(?<![A-Za-z0-9_])_EVENT_HAVE_STRUCT_SOCKADDR_IN6(?![A-Za-z0-9_])/EVENT__HAVE_STRUCT_SOCKADDR_IN6/g;
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s/(?<![A-Za-z0-9_])_EVENT_HAVE_STRUCT_SOCKADDR_IN_SIN_LEN(?![A-Za-z0-9_])/EVENT__HAVE_STRUCT_SOCKADDR_IN_SIN_LEN/g;
s/(?<![A-Za-z0-9_])_EVENT_HAVE_STRUCT_SOCKADDR_STORAGE(?![A-Za-z0-9_])/EVENT__HAVE_STRUCT_SOCKADDR_STORAGE/g;
s/(?<![A-Za-z0-9_])_EVENT_HAVE_STRUCT_SOCKADDR_STORAGE_SS_FAMILY(?![A-Za-z0-9_])/EVENT__HAVE_STRUCT_SOCKADDR_STORAGE_SS_FAMILY/g;
s/(?<![A-Za-z0-9_])_EVENT_HAVE_STRUCT_SOCKADDR_STORAGE___SS_FAMILY(?![A-Za-z0-9_])/EVENT__HAVE_STRUCT_SOCKADDR_STORAGE___SS_FAMILY/g;
s/(?<![A-Za-z0-9_])_EVENT_HAVE_SYSCTL(?![A-Za-z0-9_])/EVENT__HAVE_SYSCTL/g;
s/(?<![A-Za-z0-9_])_EVENT_HAVE_SYS_DEVPOLL_H(?![A-Za-z0-9_])/EVENT__HAVE_SYS_DEVPOLL_H/g;
s/(?<![A-Za-z0-9_])_EVENT_HAVE_SYS_EPOLL_H(?![A-Za-z0-9_])/EVENT__HAVE_SYS_EPOLL_H/g;
s/(?<![A-Za-z0-9_])_EVENT_HAVE_SYS_EVENTFD_H(?![A-Za-z0-9_])/EVENT__HAVE_SYS_EVENTFD_H/g;
s/(?<![A-Za-z0-9_])_EVENT_HAVE_SYS_EVENT_H(?![A-Za-z0-9_])/EVENT__HAVE_SYS_EVENT_H/g;
s/(?<![A-Za-z0-9_])_EVENT_HAVE_SYS_IOCTL_H(?![A-Za-z0-9_])/EVENT__HAVE_SYS_IOCTL_H/g;
s/(?<![A-Za-z0-9_])_EVENT_HAVE_SYS_MMAN_H(?![A-Za-z0-9_])/EVENT__HAVE_SYS_MMAN_H/g;
s/(?<![A-Za-z0-9_])_EVENT_HAVE_SYS_PARAM_H(?![A-Za-z0-9_])/EVENT__HAVE_SYS_PARAM_H/g;
s/(?<![A-Za-z0-9_])_EVENT_HAVE_SYS_QUEUE_H(?![A-Za-z0-9_])/EVENT__HAVE_SYS_QUEUE_H/g;
s/(?<![A-Za-z0-9_])_EVENT_HAVE_SYS_RESOURCE_H(?![A-Za-z0-9_])/EVENT__HAVE_SYS_RESOURCE_H/g;
s/(?<![A-Za-z0-9_])_EVENT_HAVE_SYS_SELECT_H(?![A-Za-z0-9_])/EVENT__HAVE_SYS_SELECT_H/g;
s/(?<![A-Za-z0-9_])_EVENT_HAVE_SYS_SENDFILE_H(?![A-Za-z0-9_])/EVENT__HAVE_SYS_SENDFILE_H/g;
s/(?<![A-Za-z0-9_])_EVENT_HAVE_SYS_SOCKET_H(?![A-Za-z0-9_])/EVENT__HAVE_SYS_SOCKET_H/g;
s/(?<![A-Za-z0-9_])_EVENT_HAVE_SYS_STAT_H(?![A-Za-z0-9_])/EVENT__HAVE_SYS_STAT_H/g;
s/(?<![A-Za-z0-9_])_EVENT_HAVE_SYS_SYSCTL_H(?![A-Za-z0-9_])/EVENT__HAVE_SYS_SYSCTL_H/g;
s/(?<![A-Za-z0-9_])_EVENT_HAVE_SYS_TIME_H(?![A-Za-z0-9_])/EVENT__HAVE_SYS_TIME_H/g;
s/(?<![A-Za-z0-9_])_EVENT_HAVE_SYS_TYPES_H(?![A-Za-z0-9_])/EVENT__HAVE_SYS_TYPES_H/g;
s/(?<![A-Za-z0-9_])_EVENT_HAVE_SYS_UIO_H(?![A-Za-z0-9_])/EVENT__HAVE_SYS_UIO_H/g;
s/(?<![A-Za-z0-9_])_EVENT_HAVE_SYS_WAIT_H(?![A-Za-z0-9_])/EVENT__HAVE_SYS_WAIT_H/g;
s/(?<![A-Za-z0-9_])_EVENT_HAVE_TAILQFOREACH(?![A-Za-z0-9_])/EVENT__HAVE_TAILQFOREACH/g;
s/(?<![A-Za-z0-9_])_EVENT_HAVE_TIMERADD(?![A-Za-z0-9_])/EVENT__HAVE_TIMERADD/g;
s/(?<![A-Za-z0-9_])_EVENT_HAVE_TIMERCLEAR(?![A-Za-z0-9_])/EVENT__HAVE_TIMERCLEAR/g;
s/(?<![A-Za-z0-9_])_EVENT_HAVE_TIMERCMP(?![A-Za-z0-9_])/EVENT__HAVE_TIMERCMP/g;
s/(?<![A-Za-z0-9_])_EVENT_HAVE_TIMERISSET(?![A-Za-z0-9_])/EVENT__HAVE_TIMERISSET/g;
s/(?<![A-Za-z0-9_])_EVENT_HAVE_UINT16_T(?![A-Za-z0-9_])/EVENT__HAVE_UINT16_T/g;
s/(?<![A-Za-z0-9_])_EVENT_HAVE_UINT32_T(?![A-Za-z0-9_])/EVENT__HAVE_UINT32_T/g;
s/(?<![A-Za-z0-9_])_EVENT_HAVE_UINT64_T(?![A-Za-z0-9_])/EVENT__HAVE_UINT64_T/g;
s/(?<![A-Za-z0-9_])_EVENT_HAVE_UINT8_T(?![A-Za-z0-9_])/EVENT__HAVE_UINT8_T/g;
s/(?<![A-Za-z0-9_])_EVENT_HAVE_UINTPTR_T(?![A-Za-z0-9_])/EVENT__HAVE_UINTPTR_T/g;
s/(?<![A-Za-z0-9_])_EVENT_HAVE_UNISTD_H(?![A-Za-z0-9_])/EVENT__HAVE_UNISTD_H/g;
s/(?<![A-Za-z0-9_])_EVENT_HAVE_UNSETENV(?![A-Za-z0-9_])/EVENT__HAVE_UNSETENV/g;
s/(?<![A-Za-z0-9_])_EVENT_HAVE_USLEEP(?![A-Za-z0-9_])/EVENT__HAVE_USLEEP/g;
s/(?<![A-Za-z0-9_])_EVENT_HAVE_VASPRINTF(?![A-Za-z0-9_])/EVENT__HAVE_VASPRINTF/g;
s/(?<![A-Za-z0-9_])_EVENT_HAVE_WORKING_KQUEUE(?![A-Za-z0-9_])/EVENT__HAVE_WORKING_KQUEUE/g;
s/(?<![A-Za-z0-9_])_EVENT_HAVE_ZLIB_H(?![A-Za-z0-9_])/EVENT__HAVE_ZLIB_H/g;
s/(?<![A-Za-z0-9_])_EVENT_LT_OBJDIR(?![A-Za-z0-9_])/EVENT__LT_OBJDIR/g;
s/(?<![A-Za-z0-9_])_EVENT_NO_MINUS_C_MINUS_O(?![A-Za-z0-9_])/EVENT__NO_MINUS_C_MINUS_O/g;
s/(?<![A-Za-z0-9_])_EVENT_NUMERIC_VERSION(?![A-Za-z0-9_])/EVENT__NUMERIC_VERSION/g;
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s/(?<![A-Za-z0-9_])_EVENT_SIZEOF_VOID_P(?![A-Za-z0-9_])/EVENT__SIZEOF_VOID_P/g;
s/(?<![A-Za-z0-9_])_EVENT_STDC_HEADERS(?![A-Za-z0-9_])/EVENT__STDC_HEADERS/g;
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The sendfile() implementation for evbuffer_add_file is potentially more
efficient, but it has a problem: you can only use it to send bytes over
a socket using sendfile(). If you are writing bytes via SSL_send() or
via a filter, or if you need to be able to inspect your buffer, it
doesn't work.
As an easy fix, this patch disables the sendfile-based implementation of
evbuffer_add_file on an evbuffer unless the user sets a new
EVBUFFER_FLAG_DRAINS_TO_FD flag on that evbuffer, indicating that the
evbuffer will not be inspected, but only written out via
evbuffer_write(), evbuffer_write_atmost(), or drained with stuff like
evbuffer_drain() or evbuffer_add_buffer(). This flag is off by
default, except for evbuffers used for output on bufferevent_socket.
In the future, it could be interesting to make a best-effort file
segment implementation that tries to send via sendfile, but mmaps on
demand. That's too much complexity for a stable release series, though.
The EVUTIL_CLOSESOCKET() macro required you to include unistd.h in your
source for POSIX. We might as well turn it into a function: an extra
function call is going to be cheap in comparison with the system call.
We retain the EVUTIL_CLOSESOCKET() macro as an alias for the new
evutil_closesocket() function.
(commit message from email by Nick and Sebastian)
There should be no need to call be_socket_enable: that does an
event_add(). What we really want to do is event_active(), to make
sure that the writecb is executed.
Also, there was one "} if () {" that was missing an else.
I've noted that the return value for evutil_socket_connect() is
getting screwy, but since that isn't an exported function, we can fix
it whenever.
The different bufferevent implementations had different behavior for
their timeouts. Some of them kept re-triggering the timeouts
indefinitely; some disabled the event immediately the first time a
timeout triggered. Some of them made the timeouts only count when
the bufferevent was actively trying to read or write; some did not.
The new behavior is modeled after old socket bufferevents, since
they were here first and their behavior is relatively sane.
Basically, each timeout disables the bufferevent's corresponding
read or write operation when it fires. Timeouts are stopped
whenever we suspend writing or reading, and reset whenever we
unsuspend writing or reading. Calling bufferevent_enable resets a
timeout, as does changing the timeout value.
When we're doing a lookup in preparation for doing a connect, we
might have an unconnected socket on hand, and mustn't actually do
any reading or writing with it.
Most of these should be unable to fail, since adding a timeout
generally always works. Still, it's better not to try to be "too
smart for our own good here."
There are some remaining event_add() calls that I didn't add checks
for; I've marked those with "XXXX" comments.
In many places throughout the code, we called _bufferevent_run_eventcb
without checking whether the eventcb was actually set. This would
work fine when the bufferevent's callbacks were deferred, but
otherwise the code would segfault. Strangely, we always remembered to
check before calling the _bufferevent_run_{read,write}cb functions.
To prevent similar errors in the future, all of
_buferevent_run_{read,write,event}cb now check to make sure the
callback is actually set before invoking or deferring the callback.
This patch also removes the now-redundant checks for {read,write}cb.
