1 files changed, 0 insertions, 351 deletions
diff --git a/libs/libevent/src/evbuffer-internal.h b/libs/libevent/src/evbuffer-internal.h
deleted file mode 100644
index cf4bddc80e..0000000000
--- a/libs/libevent/src/evbuffer-internal.h
+++ /dev/null
@@ -1,351 +0,0 @@
-/*
- * Copyright (c) 2000-2007 Niels Provos <provos@citi.umich.edu>
- * Copyright (c) 2007-2012 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.
- */
-#ifndef EVBUFFER_INTERNAL_H_INCLUDED_
-#define EVBUFFER_INTERNAL_H_INCLUDED_
-
-#ifdef __cplusplus
-extern "C" {
-#endif
-
-#include "event2/event-config.h"
-#include "evconfig-private.h"
-#include "event2/util.h"
-#include "event2/event_struct.h"
-#include "util-internal.h"
-#include "defer-internal.h"
-
-/* Experimental cb flag: "never deferred."  Implementation note:
- * these callbacks may get an inaccurate view of n_del/n_added in their
- * arguments. */
-#define EVBUFFER_CB_NODEFER 2
-
-#ifdef _WIN32
-#include <winsock2.h>
-#endif
-#include <sys/queue.h>
-
-/* Minimum allocation for a chain.  We define this so that we're burning no
- * more than 5% of each allocation on overhead.  It would be nice to lose even
- * less space, though. */
-#if EVENT__SIZEOF_VOID_P < 8
-#define MIN_BUFFER_SIZE	512
-#else
-#define MIN_BUFFER_SIZE	1024
-#endif
-
-/** A single evbuffer callback for an evbuffer. This function will be invoked
- * when bytes are added to or removed from the evbuffer. */
-struct evbuffer_cb_entry {
-	/** Structures to implement a doubly-linked queue of callbacks */
-	LIST_ENTRY(evbuffer_cb_entry) next;
-	/** The callback function to invoke when this callback is called.
-	    If EVBUFFER_CB_OBSOLETE is set in flags, the cb_obsolete field is
-	    valid; otherwise, cb_func is valid. */
-	union {
-		evbuffer_cb_func cb_func;
-		evbuffer_cb cb_obsolete;
-	} cb;
-	/** Argument to pass to cb. */
-	void *cbarg;
-	/** Currently set flags on this callback. */
-	ev_uint32_t flags;
-};
-
-struct bufferevent;
-struct evbuffer_chain;
-struct evbuffer {
-	/** The first chain in this buffer's linked list of chains. */
-	struct evbuffer_chain *first;
-	/** The last chain in this buffer's linked list of chains. */
-	struct evbuffer_chain *last;
-
-	/** Pointer to the next pointer pointing at the 'last_with_data' chain.
-	 *
-	 * To unpack:
-	 *
-	 * The last_with_data chain is the last chain that has any data in it.
-	 * If all chains in the buffer are empty, it is the first chain.
-	 * If the buffer has no chains, it is NULL.
-	 *
-	 * The last_with_datap pointer points at _whatever 'next' pointer_
-	 * points at the last_with_datap chain.  If the last_with_data chain
-	 * is the first chain, or it is NULL, then the last_with_datap pointer
-	 * is &buf->first.
-	 */
-	struct evbuffer_chain **last_with_datap;
-
-	/** Total amount of bytes stored in all chains.*/
-	size_t total_len;
-
-	/** Number of bytes we have added to the buffer since we last tried to
-	 * invoke callbacks. */
-	size_t n_add_for_cb;
-	/** Number of bytes we have removed from the buffer since we last
-	 * tried to invoke callbacks. */
-	size_t n_del_for_cb;
-
-#ifndef EVENT__DISABLE_THREAD_SUPPORT
-	/** A lock used to mediate access to this buffer. */
-	void *lock;
-#endif
-	/** True iff we should free the lock field when we free this
-	 * evbuffer. */
-	unsigned own_lock : 1;
-	/** True iff we should not allow changes to the front of the buffer
-	 * (drains or prepends). */
-	unsigned freeze_start : 1;
-	/** True iff we should not allow changes to the end of the buffer
-	 * (appends) */
-	unsigned freeze_end : 1;
-	/** True iff this evbuffer's callbacks are not invoked immediately
-	 * upon a change in the buffer, but instead are deferred to be invoked
-	 * from the event_base's loop.	Useful for preventing enormous stack
-	 * overflows when we have mutually recursive callbacks, and for
-	 * serializing callbacks in a single thread. */
-	unsigned deferred_cbs : 1;
-#ifdef _WIN32
-	/** True iff this buffer is set up for overlapped IO. */
-	unsigned is_overlapped : 1;
-#endif
-	/** Zero or more EVBUFFER_FLAG_* bits */
-	ev_uint32_t flags;
-
-	/** Used to implement deferred callbacks. */
-	struct event_base *cb_queue;
-
-	/** A reference count on this evbuffer.	 When the reference count
-	 * reaches 0, the buffer is destroyed.	Manipulated with
-	 * evbuffer_incref and evbuffer_decref_and_unlock and
-	 * evbuffer_free. */
-	int refcnt;
-
-	/** A struct event_callback handle to make all of this buffer's callbacks
-	 * invoked from the event loop. */
-	struct event_callback deferred;
-
-	/** A doubly-linked-list of callback functions */
-	LIST_HEAD(evbuffer_cb_queue, evbuffer_cb_entry) callbacks;
-
-	/** The parent bufferevent object this evbuffer belongs to.
-	 * NULL if the evbuffer stands alone. */
-	struct bufferevent *parent;
-};
-
-#if EVENT__SIZEOF_OFF_T < EVENT__SIZEOF_SIZE_T
-typedef ev_ssize_t ev_misalign_t;
-#define EVBUFFER_CHAIN_MAX ((size_t)EV_SSIZE_MAX)
-#else
-typedef ev_off_t ev_misalign_t;
-#if EVENT__SIZEOF_OFF_T > EVENT__SIZEOF_SIZE_T
-#define EVBUFFER_CHAIN_MAX EV_SIZE_MAX
-#else
-#define EVBUFFER_CHAIN_MAX ((size_t)EV_SSIZE_MAX)
-#endif
-#endif
-
-/** A single item in an evbuffer. */
-struct evbuffer_chain {
-	/** points to next buffer in the chain */
-	struct evbuffer_chain *next;
-
-	/** total allocation available in the buffer field. */
-	size_t buffer_len;
-
-	/** unused space at the beginning of buffer or an offset into a
-	 * file for sendfile buffers. */
-	ev_misalign_t misalign;
-
-	/** Offset into buffer + misalign at which to start writing.
-	 * In other words, the total number of bytes actually stored
-	 * in buffer. */
-	size_t off;
-
-	/** Set if special handling is required for this chain */
-	unsigned flags;
-#define EVBUFFER_FILESEGMENT	0x0001  /**< A chain used for a file segment */
-#define EVBUFFER_SENDFILE	0x0002	/**< a chain used with sendfile */
-#define EVBUFFER_REFERENCE	0x0004	/**< a chain with a mem reference */
-#define EVBUFFER_IMMUTABLE	0x0008	/**< read-only chain */
-	/** a chain that mustn't be reallocated or freed, or have its contents
-	 * memmoved, until the chain is un-pinned. */
-#define EVBUFFER_MEM_PINNED_R	0x0010
-#define EVBUFFER_MEM_PINNED_W	0x0020
-#define EVBUFFER_MEM_PINNED_ANY (EVBUFFER_MEM_PINNED_R|EVBUFFER_MEM_PINNED_W)
-	/** a chain that should be freed, but can't be freed until it is
-	 * un-pinned. */
-#define EVBUFFER_DANGLING	0x0040
-	/** a chain that is a referenced copy of another chain */
-#define EVBUFFER_MULTICAST	0x0080
-
-	/** number of references to this chain */
-	int refcnt;
-
-	/** Usually points to the read-write memory belonging to this
-	 * buffer allocated as part of the evbuffer_chain allocation.
-	 * For mmap, this can be a read-only buffer and
-	 * EVBUFFER_IMMUTABLE will be set in flags.  For sendfile, it
-	 * may point to NULL.
-	 */
-	unsigned char *buffer;
-};
-
-/** callback for a reference chain; lets us know what to do with it when
- * we're done with it. Lives at the end of an evbuffer_chain with the
- * EVBUFFER_REFERENCE flag set */
-struct evbuffer_chain_reference {
-	evbuffer_ref_cleanup_cb cleanupfn;
-	void *extra;
-};
-
-/** File segment for a file-segment chain.  Lives at the end of an
- * evbuffer_chain with the EVBUFFER_FILESEGMENT flag set.  */
-struct evbuffer_chain_file_segment {
-	struct evbuffer_file_segment *segment;
-#ifdef _WIN32
-	/** If we're using CreateFileMapping, this is the handle to the view. */
-	HANDLE view_handle;
-#endif
-};
-
-/* Declared in event2/buffer.h; defined here. */
-struct evbuffer_file_segment {
-	void *lock; /**< lock prevent concurrent access to refcnt */
-	int refcnt; /**< Reference count for this file segment */
-	unsigned flags; /**< combination of EVBUF_FS_* flags  */
-
-	/** What kind of file segment is this? */
-	unsigned can_sendfile : 1;
-	unsigned is_mapping : 1;
-
-	/** The fd that we read the data from. */
-	int fd;
-	/** If we're using mmap, this is the raw mapped memory. */
-	void *mapping;
-#ifdef _WIN32
-	/** If we're using CreateFileMapping, this is the mapping */
-	HANDLE mapping_handle;
-#endif
-	/** If we're using mmap or IO, this is the content of the file
-	 * segment. */
-	char *contents;
-	/** Position of this segment within the file. */
-	ev_off_t file_offset;
-	/** If we're using mmap, this is the offset within 'mapping' where
-	 * this data segment begins. */
-	ev_off_t mmap_offset;
-	/** The length of this segment. */
-	ev_off_t length;
-	/** Cleanup callback function */
-	evbuffer_file_segment_cleanup_cb cleanup_cb;
-	/** Argument to be pass to cleanup callback function */
-	void *cleanup_cb_arg;
-};
-
-/** Information about the multicast parent of a chain.  Lives at the
- * end of an evbuffer_chain with the EVBUFFER_MULTICAST flag set.  */
-struct evbuffer_multicast_parent {
-	/** source buffer the multicast parent belongs to */
-	struct evbuffer *source;
-	/** multicast parent for this chain */
-	struct evbuffer_chain *parent;
-};
-
-#define EVBUFFER_CHAIN_SIZE sizeof(struct evbuffer_chain)
-/** Return a pointer to extra data allocated along with an evbuffer. */
-#define EVBUFFER_CHAIN_EXTRA(t, c) (t *)((struct evbuffer_chain *)(c) + 1)
-
-/** Assert that we are holding the lock on an evbuffer */
-#define ASSERT_EVBUFFER_LOCKED(buffer)			\
-	EVLOCK_ASSERT_LOCKED((buffer)->lock)
-
-#define EVBUFFER_LOCK(buffer)						\
-	do {								\
-		EVLOCK_LOCK((buffer)->lock, 0);				\
-	} while (0)
-#define EVBUFFER_UNLOCK(buffer)						\
-	do {								\
-		EVLOCK_UNLOCK((buffer)->lock, 0);			\
-	} while (0)
-#define EVBUFFER_LOCK2(buffer1, buffer2)				\
-	do {								\
-		EVLOCK_LOCK2((buffer1)->lock, (buffer2)->lock, 0, 0);	\
-	} while (0)
-#define EVBUFFER_UNLOCK2(buffer1, buffer2)				\
-	do {								\
-		EVLOCK_UNLOCK2((buffer1)->lock, (buffer2)->lock, 0, 0);	\
-	} while (0)
-
-/** Increase the reference count of buf by one. */
-void evbuffer_incref_(struct evbuffer *buf);
-/** Increase the reference count of buf by one and acquire the lock. */
-void evbuffer_incref_and_lock_(struct evbuffer *buf);
-/** Pin a single buffer chain using a given flag. A pinned chunk may not be
- * moved or freed until it is unpinned. */
-void evbuffer_chain_pin_(struct evbuffer_chain *chain, unsigned flag);
-/** Unpin a single buffer chain using a given flag. */
-void evbuffer_chain_unpin_(struct evbuffer_chain *chain, unsigned flag);
-/** As evbuffer_free, but requires that we hold a lock on the buffer, and
- * releases the lock before freeing it and the buffer. */
-void evbuffer_decref_and_unlock_(struct evbuffer *buffer);
-
-/** As evbuffer_expand, but does not guarantee that the newly allocated memory
- * is contiguous.  Instead, it may be split across two or more chunks. */
-int evbuffer_expand_fast_(struct evbuffer *, size_t, int);
-
-/** Helper: prepares for a readv/WSARecv call by expanding the buffer to
- * hold enough memory to read 'howmuch' bytes in possibly noncontiguous memory.
- * Sets up the one or two iovecs in 'vecs' to point to the free memory and its
- * extent, and *chainp to point to the first chain that we'll try to read into.
- * Returns the number of vecs used.
- */
-int evbuffer_read_setup_vecs_(struct evbuffer *buf, ev_ssize_t howmuch,
-    struct evbuffer_iovec *vecs, int n_vecs, struct evbuffer_chain ***chainp,
-    int exact);
-
-/* Helper macro: copies an evbuffer_iovec in ei to a win32 WSABUF in i. */
-#define WSABUF_FROM_EVBUFFER_IOV(i,ei) do {		\
-		(i)->buf = (ei)->iov_base;		\
-		(i)->len = (unsigned long)(ei)->iov_len;	\
-	} while (0)
-/* XXXX the cast above is safe for now, but not if we allow mmaps on win64.
- * See note in buffer_iocp's launch_write function */
-
-/** Set the parent bufferevent object for buf to bev */
-void evbuffer_set_parent_(struct evbuffer *buf, struct bufferevent *bev);
-
-void evbuffer_invoke_callbacks_(struct evbuffer *buf);
-
-
-int evbuffer_get_callbacks_(struct evbuffer *buffer,
-    struct event_callback **cbs,
-    int max_cbs);
-
-#ifdef __cplusplus
-}
-#endif
-
-#endif /* EVBUFFER_INTERNAL_H_INCLUDED_ */