1 files changed, 0 insertions, 326 deletions
diff --git a/libs/libevent/src/buffer_iocp.c b/libs/libevent/src/buffer_iocp.c
deleted file mode 100644
index 2d76a90e77..0000000000
--- a/libs/libevent/src/buffer_iocp.c
+++ /dev/null
@@ -1,326 +0,0 @@
-/*
- * Copyright (c) 2009-2012 Niels Provos and Nick Mathewson
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions
- * are met:
- * 1. Redistributions of source code must retain the above copyright
- *    notice, this list of conditions and the following disclaimer.
- * 2. 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.
- * 3. The name of the author may not be used to endorse or promote products
- *    derived from this software without specific prior written permission.
- *
- * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``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 AUTHOR 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 buffer_iocp.c
-
-   This module implements overlapped read and write functions for evbuffer
-   objects on Windows.
-*/
-#include "event2/event-config.h"
-#include "evconfig-private.h"
-
-#include "event2/buffer.h"
-#include "event2/buffer_compat.h"
-#include "event2/util.h"
-#include "event2/thread.h"
-#include "util-internal.h"
-#include "evthread-internal.h"
-#include "evbuffer-internal.h"
-#include "iocp-internal.h"
-#include "mm-internal.h"
-
-#include <winsock2.h>
-#include <windows.h>
-#include <stdio.h>
-
-#define MAX_WSABUFS 16
-
-/** An evbuffer that can handle overlapped IO. */
-struct evbuffer_overlapped {
-	struct evbuffer buffer;
-	/** The socket that we're doing overlapped IO on. */
-	evutil_socket_t fd;
-
-	/** pending I/O type */
-	unsigned read_in_progress : 1;
-	unsigned write_in_progress : 1;
-
-	/** The first pinned chain in the buffer. */
-	struct evbuffer_chain *first_pinned;
-
-	/** How many chains are pinned; how many of the fields in buffers
-	 * are we using. */
-	int n_buffers;
-	WSABUF buffers[MAX_WSABUFS];
-};
-
-/** Given an evbuffer, return the correponding evbuffer structure, or NULL if
- * the evbuffer isn't overlapped. */
-static inline struct evbuffer_overlapped *
-upcast_evbuffer(struct evbuffer *buf)
-{
-	if (!buf || !buf->is_overlapped)
-		return NULL;
-	return EVUTIL_UPCAST(buf, struct evbuffer_overlapped, buffer);
-}
-
-/** Unpin all the chains noted as pinned in 'eo'. */
-static void
-pin_release(struct evbuffer_overlapped *eo, unsigned flag)
-{
-	int i;
-	struct evbuffer_chain *next, *chain = eo->first_pinned;
-
-	for (i = 0; i < eo->n_buffers; ++i) {
-		EVUTIL_ASSERT(chain);
-		next = chain->next;
-		evbuffer_chain_unpin_(chain, flag);
-		chain = next;
-	}
-}
-
-void
-evbuffer_commit_read_(struct evbuffer *evbuf, ev_ssize_t nBytes)
-{
-	struct evbuffer_overlapped *buf = upcast_evbuffer(evbuf);
-	struct evbuffer_chain **chainp;
-	size_t remaining, len;
-	unsigned i;
-
-	EVBUFFER_LOCK(evbuf);
-	EVUTIL_ASSERT(buf->read_in_progress && !buf->write_in_progress);
-	EVUTIL_ASSERT(nBytes >= 0); /* XXXX Can this be false? */
-
-	evbuffer_unfreeze(evbuf, 0);
-
-	chainp = evbuf->last_with_datap;
-	if (!((*chainp)->flags & EVBUFFER_MEM_PINNED_R))
-		chainp = &(*chainp)->next;
-	remaining = nBytes;
-	for (i = 0; remaining > 0 && i < (unsigned)buf->n_buffers; ++i) {
-		EVUTIL_ASSERT(*chainp);
-		len = buf->buffers[i].len;
-		if (remaining < len)
-			len = remaining;
-		(*chainp)->off += len;
-		evbuf->last_with_datap = chainp;
-		remaining -= len;
-		chainp = &(*chainp)->next;
-	}
-
-	pin_release(buf, EVBUFFER_MEM_PINNED_R);
-
-	buf->read_in_progress = 0;
-
-	evbuf->total_len += nBytes;
-	evbuf->n_add_for_cb += nBytes;
-
-	evbuffer_invoke_callbacks_(evbuf);
-
-	evbuffer_decref_and_unlock_(evbuf);
-}
-
-void
-evbuffer_commit_write_(struct evbuffer *evbuf, ev_ssize_t nBytes)
-{
-	struct evbuffer_overlapped *buf = upcast_evbuffer(evbuf);
-
-	EVBUFFER_LOCK(evbuf);
-	EVUTIL_ASSERT(buf->write_in_progress && !buf->read_in_progress);
-	evbuffer_unfreeze(evbuf, 1);
-	evbuffer_drain(evbuf, nBytes);
-	pin_release(buf,EVBUFFER_MEM_PINNED_W);
-	buf->write_in_progress = 0;
-	evbuffer_decref_and_unlock_(evbuf);
-}
-
-struct evbuffer *
-evbuffer_overlapped_new_(evutil_socket_t fd)
-{
-	struct evbuffer_overlapped *evo;
-
-	evo = mm_calloc(1, sizeof(struct evbuffer_overlapped));
-	if (!evo)
-		return NULL;
-
-	LIST_INIT(&evo->buffer.callbacks);
-	evo->buffer.refcnt = 1;
-	evo->buffer.last_with_datap = &evo->buffer.first;
-
-	evo->buffer.is_overlapped = 1;
-	evo->fd = fd;
-
-	return &evo->buffer;
-}
-
-int
-evbuffer_launch_write_(struct evbuffer *buf, ev_ssize_t at_most,
-		struct event_overlapped *ol)
-{
-	struct evbuffer_overlapped *buf_o = upcast_evbuffer(buf);
-	int r = -1;
-	int i;
-	struct evbuffer_chain *chain;
-	DWORD bytesSent;
-
-	if (!buf) {
-		/* No buffer, or it isn't overlapped */
-		return -1;
-	}
-
-	EVBUFFER_LOCK(buf);
-	EVUTIL_ASSERT(!buf_o->read_in_progress);
-	if (buf->freeze_start || buf_o->write_in_progress)
-		goto done;
-	if (!buf->total_len) {
-		/* Nothing to write */
-		r = 0;
-		goto done;
-	} else if (at_most < 0 || (size_t)at_most > buf->total_len) {
-		at_most = buf->total_len;
-	}
-	evbuffer_freeze(buf, 1);
-
-	buf_o->first_pinned = NULL;
-	buf_o->n_buffers = 0;
-	memset(buf_o->buffers, 0, sizeof(buf_o->buffers));
-
-	chain = buf_o->first_pinned = buf->first;
-
-	for (i=0; i < MAX_WSABUFS && chain; ++i, chain=chain->next) {
-		WSABUF *b = &buf_o->buffers[i];
-		b->buf = (char*)( chain->buffer + chain->misalign );
-		evbuffer_chain_pin_(chain, EVBUFFER_MEM_PINNED_W);
-
-		if ((size_t)at_most > chain->off) {
-			/* XXXX Cast is safe for now, since win32 has no
-			   mmaped chains.  But later, we need to have this
-			   add more WSAbufs if chain->off is greater than
-			   ULONG_MAX */
-			b->len = (unsigned long)chain->off;
-			at_most -= chain->off;
-		} else {
-			b->len = (unsigned long)at_most;
-			++i;
-			break;
-		}
-	}
-
-	buf_o->n_buffers = i;
-	evbuffer_incref_(buf);
-	if (WSASend(buf_o->fd, buf_o->buffers, i, &bytesSent, 0,
-		&ol->overlapped, NULL)) {
-		int error = WSAGetLastError();
-		if (error != WSA_IO_PENDING) {
-			/* An actual error. */
-			pin_release(buf_o, EVBUFFER_MEM_PINNED_W);
-			evbuffer_unfreeze(buf, 1);
-			evbuffer_free(buf); /* decref */
-			goto done;
-		}
-	}
-
-	buf_o->write_in_progress = 1;
-	r = 0;
-done:
-	EVBUFFER_UNLOCK(buf);
-	return r;
-}
-
-int
-evbuffer_launch_read_(struct evbuffer *buf, size_t at_most,
-		struct event_overlapped *ol)
-{
-	struct evbuffer_overlapped *buf_o = upcast_evbuffer(buf);
-	int r = -1, i;
-	int nvecs;
-	int npin=0;
-	struct evbuffer_chain *chain=NULL, **chainp;
-	DWORD bytesRead;
-	DWORD flags = 0;
-	struct evbuffer_iovec vecs[MAX_WSABUFS];
-
-	if (!buf_o)
-		return -1;
-	EVBUFFER_LOCK(buf);
-	EVUTIL_ASSERT(!buf_o->write_in_progress);
-	if (buf->freeze_end || buf_o->read_in_progress)
-		goto done;
-
-	buf_o->first_pinned = NULL;
-	buf_o->n_buffers = 0;
-	memset(buf_o->buffers, 0, sizeof(buf_o->buffers));
-
-	if (evbuffer_expand_fast_(buf, at_most, MAX_WSABUFS) == -1)
-		goto done;
-	evbuffer_freeze(buf, 0);
-
-	nvecs = evbuffer_read_setup_vecs_(buf, at_most,
-	    vecs, MAX_WSABUFS, &chainp, 1);
-	for (i=0;i<nvecs;++i) {
-		WSABUF_FROM_EVBUFFER_IOV(
-			&buf_o->buffers[i],
-			&vecs[i]);
-	}
-
-	buf_o->n_buffers = nvecs;
-	buf_o->first_pinned = chain = *chainp;
-
-	npin=0;
-	for ( ; chain; chain = chain->next) {
-		evbuffer_chain_pin_(chain, EVBUFFER_MEM_PINNED_R);
-		++npin;
-	}
-	EVUTIL_ASSERT(npin == nvecs);
-
-	evbuffer_incref_(buf);
-	if (WSARecv(buf_o->fd, buf_o->buffers, nvecs, &bytesRead, &flags,
-		    &ol->overlapped, NULL)) {
-		int error = WSAGetLastError();
-		if (error != WSA_IO_PENDING) {
-			/* An actual error. */
-			pin_release(buf_o, EVBUFFER_MEM_PINNED_R);
-			evbuffer_unfreeze(buf, 0);
-			evbuffer_free(buf); /* decref */
-			goto done;
-		}
-	}
-
-	buf_o->read_in_progress = 1;
-	r = 0;
-done:
-	EVBUFFER_UNLOCK(buf);
-	return r;
-}
-
-evutil_socket_t
-evbuffer_overlapped_get_fd_(struct evbuffer *buf)
-{
-	struct evbuffer_overlapped *buf_o = upcast_evbuffer(buf);
-	return buf_o ? buf_o->fd : -1;
-}
-
-void
-evbuffer_overlapped_set_fd_(struct evbuffer *buf, evutil_socket_t fd)
-{
-	struct evbuffer_overlapped *buf_o = upcast_evbuffer(buf);
-	EVBUFFER_LOCK(buf);
-	/* XXX is this right?, should it cancel current I/O operations? */
-	if (buf_o)
-		buf_o->fd = fd;
-	EVBUFFER_UNLOCK(buf);
-}