Unbound: remove unbound from in-tree source

We'll instead use a git submodule to pull from our unbound repo.

1 files changed, 0 insertions, 279 deletions

diff --git a/external/unbound/util/winsock_event.h b/external/unbound/util/winsock_event.h
deleted file mode 100644
index d6dafac8c..000000000
--- a/external/unbound/util/winsock_event.h
+++ /dev/null
@@ -1,279 +0,0 @@
-/*
- * util/winsock_event.h - unbound event handling for winsock on windows
- *
- * Copyright (c) 2008, NLnet Labs. All rights reserved.
- *
- * This software is open source.
- * 
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions
- * are met:
- * 
- * Redistributions of source code must retain the above copyright notice,
- * this list of conditions and the following disclaimer.
- * 
- * Redistributions in binary form must reproduce the above copyright notice,
- * this list of conditions and the following disclaimer in the documentation
- * and/or other materials provided with the distribution.
- * 
- * Neither the name of the NLNET LABS nor the names of its contributors may
- * be used to endorse or promote products derived from this software without
- * specific prior written permission.
- * 
- * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
- * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
- * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
- * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
- * HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
- * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED
- * TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
- * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
- * LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
- * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
- * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
- */
-
-/**
- * \file
- *
- * This file contains interface functions with the WinSock2 API on Windows.
- * It uses the winsock WSAWaitForMultipleEvents interface on a number of
- * sockets.
- *
- * Note that windows can only wait for max 64 events at one time.
- * 
- * Also, file descriptors cannot be waited for.
- *
- * Named pipes are not easily available (and are not usable in select() ).
- * For interprocess communication, it is possible to wait for a hEvent to
- * be signaled by another thread.
- *
- * When a socket becomes readable, then it will not be flagged as 
- * readable again until you have gotten WOULDBLOCK from a recv routine.
- * That means the event handler must store the readability (edge notify)
- * and process the incoming data until it blocks. 
- * The function performing recv then has to inform the event handler that
- * the socket has blocked, and the event handler can mark it as such.
- * Thus, this file transforms the edge notify from windows to a level notify
- * that is compatible with UNIX.
- * The WSAEventSelect page says that it does do level notify, as long
- * as you call a recv/write/accept at least once when it is signalled.
- * This last bit is not true, even though documented in server2008 api docs
- * from microsoft, it does not happen at all. Instead you have to test for
- * WSAEWOULDBLOCK on a tcp stream, and only then retest the socket.
- * And before that remember the previous result as still valid.
- *
- * To stay 'fair', instead of emptying a socket completely, the event handler
- * can test the other (marked as blocking) sockets for new events.
- *
- * Additionally, TCP accept sockets get special event support.
- *
- * Socket numbers are not starting small, they can be any number (say 33060).
- * Therefore, bitmaps are not used, but arrays.
- *
- * on winsock, you must use recv() and send() for TCP reads and writes,
- * not read() and write(), those work only on files.
- *
- * Also fseek and fseeko do not work if a FILE is not fopen-ed in binary mode.
- *
- * When under a high load windows gives out lots of errors, from recvfrom
- * on udp sockets for example (WSAECONNRESET). Even though the udp socket
- * has no connection per se.
- */
-
-#ifndef UTIL_WINSOCK_EVENT_H
-#define UTIL_WINSOCK_EVENT_H
-
-#ifdef USE_WINSOCK
-
-#ifndef HAVE_EVENT_BASE_FREE
-#define HAVE_EVENT_BASE_FREE
-#endif
-
-/* redefine the calls to different names so that there is no name
- * collision with other code that uses libevent names. (that uses libunbound)*/
-#define event_init winsockevent_init
-#define event_get_version winsockevent_get_version
-#define event_get_method winsockevent_get_method
-#define event_base_dispatch winsockevent_base_dispatch
-#define event_base_loopexit winsockevent_base_loopexit
-#define event_base_free winsockevent_base_free
-#define event_set winsockevent_set
-#define event_base_set winsockevent_base_set
-#define event_add winsockevent_add
-#define event_del winsockevent_del
-#define signal_add winsocksignal_add
-#define signal_del winsocksignal_del
-
-/** event timeout */
-#define EV_TIMEOUT      0x01
-/** event fd readable */
-#define EV_READ         0x02
-/** event fd writable */
-#define EV_WRITE        0x04
-/** event signal */
-#define EV_SIGNAL       0x08
-/** event must persist */
-#define EV_PERSIST      0x10
-
-/* needs our redblack tree */
-#include "rbtree.h"
-
-/** max number of signals to support */
-#define MAX_SIG 32
-
-/** The number of items that the winsock event handler can service.
- * Windows cannot handle more anyway */
-#define WSK_MAX_ITEMS 64
-
-/**
- * event base for winsock event handler
- */
-struct event_base
-{
-	/** sorted by timeout (absolute), ptr */
-	rbtree_type* times;
-	/** array (first part in use) of handles to work on */
-	struct event** items;
-	/** number of items in use in array */
-	int max;
-	/** capacity of array, size of array in items */
-	int cap;
-	/** array of 0 - maxsig of ptr to event for it */
-        struct event** signals;
-	/** if we need to exit */
-	int need_to_exit;
-	/** where to store time in seconds */
-	time_t* time_secs;
-	/** where to store time in microseconds */
-	struct timeval* time_tv;
-	/** 
-	 * TCP streams have sticky events to them, these are not
-	 * reported by the windows event system anymore, we have to
-	 * keep reporting those events as present until wouldblock() is
-	 * signalled by the handler back to use.
-	 */
-	int tcp_stickies;
-	/**
-	 * should next cycle process reinvigorated stickies,
-	 * these are stickies that have been stored, but due to a new
-	 * event_add a sudden interest in the event has incepted.
-	 */
-	int tcp_reinvigorated;
-	/** The list of events that is currently being processed. */
-	WSAEVENT waitfor[WSK_MAX_ITEMS];
-};
-
-/**
- * Event structure. Has some of the event elements.
- */
-struct event {
-        /** node in timeout rbtree */
-        rbnode_type node;
-        /** is event already added */
-        int added;
-
-        /** event base it belongs to */
-        struct event_base *ev_base;
-        /** fd to poll or -1 for timeouts. signal number for sigs. */
-        int ev_fd;
-        /** what events this event is interested in, see EV_.. above. */
-        short ev_events;
-        /** timeout value */
-        struct timeval ev_timeout;
-
-        /** callback to call: fd, eventbits, userarg */
-        void (*ev_callback)(int, short, void *);
-        /** callback user arg */
-        void *ev_arg;
-
-	/* ----- nonpublic part, for winsock_event only ----- */
-	/** index of this event in the items array (if added) */
-	int idx;
-	/** the event handle to wait for new events to become ready */
-	WSAEVENT hEvent;
-	/** true if this filedes is a TCP socket and needs special attention */
-	int is_tcp;
-	/** remembered EV_ values */
-	short old_events;
-	/** should remembered EV_ values be used for TCP streams. 
-	 * Reset after WOULDBLOCK is signaled using the function. */
-	int stick_events;
-
-	/** true if this event is a signaling WSAEvent by the user. 
-	 * User created and user closed WSAEvent. Only signaled/unsignaled,
-	 * no read/write/distinctions needed. */
-	int is_signal;
-	/** used during callbacks to see which events were just checked */
-	int just_checked;
-};
-
-/** create event base */
-void *event_init(time_t* time_secs, struct timeval* time_tv);
-/** get version */
-const char *event_get_version(void);
-/** get polling method (select,epoll) */
-const char *event_get_method(void);
-/** run select in a loop */
-int event_base_dispatch(struct event_base *);
-/** exit that loop */
-int event_base_loopexit(struct event_base *, struct timeval *);
-/** free event base. Free events yourself */
-void event_base_free(struct event_base *);
-/** set content of event */
-void event_set(struct event *, int, short, void (*)(int, short, void *), void *);
-
-/** add event to a base. You *must* call this for every event. */
-int event_base_set(struct event_base *, struct event *);
-/** add event to make it active. You may not change it with event_set anymore */
-int event_add(struct event *, struct timeval *);
-/** remove event. You may change it again */
-int event_del(struct event *);
-
-#define evtimer_add(ev, tv)             event_add(ev, tv)
-#define evtimer_del(ev)                 event_del(ev)
-
-/* uses different implementation. Cannot mix fd/timeouts and signals inside
- * the same struct event. create several event structs for that.  */
-/** install signal handler */
-int signal_add(struct event *, struct timeval *);
-/** set signal event contents */
-#define signal_set(ev, x, cb, arg)      \
-        event_set(ev, x, EV_SIGNAL|EV_PERSIST, cb, arg)
-/** remove signal handler */
-int signal_del(struct event *);
-
-/** compare events in tree, based on timevalue, ptr for uniqueness */
-int mini_ev_cmp(const void* a, const void* b);
-
-/**
- * Routine for windows only, where the handling layer can signal that
- * a TCP stream encountered WSAEWOULDBLOCK for a stream and thus needs
- * retesting the event.
- * Pass if EV_READ or EV_WRITE gave wouldblock.
- */
-void winsock_tcp_wouldblock(struct event* ev, int eventbit);
-
-/**
- * Routine for windows only. where you pass a signal WSAEvent that
- * you wait for. When the event is signaled, the callback gets called.
- * The callback has to WSAResetEvent to disable the signal. 
- * @param base: the event base.
- * @param ev: the event structure for data storage
- * 	can be passed uninitialised.
- * @param wsaevent: the WSAEvent that gets signaled.
- * @param cb: callback routine.
- * @param arg: user argument to callback routine.
- * @return false on error.
- */
-int winsock_register_wsaevent(struct event_base* base, struct event* ev,
-	WSAEVENT wsaevent, void (*cb)(int, short, void*), void* arg);
-
-/**
- * Unregister a wsaevent. User has to close the WSAEVENT itself.
- * @param ev: event data storage.
- */
-void winsock_unregister_wsaevent(struct event* ev);
-
-#endif /* USE_WINSOCK */
-#endif /* UTIL_WINSOCK_EVENT_H */