1 files changed, 0 insertions, 308 deletions
diff --git a/lib/bind/isc/ev_streams.c b/lib/bind/isc/ev_streams.c
deleted file mode 100644
index ab61246..0000000
--- a/lib/bind/isc/ev_streams.c
+++ /dev/null
@@ -1,308 +0,0 @@
-/*
- * Copyright (c) 2004 by Internet Systems Consortium, Inc. ("ISC")
- * Copyright (c) 1996-1999 by Internet Software Consortium
- *
- * Permission to use, copy, modify, and distribute this software for any
- * purpose with or without fee is hereby granted, provided that the above
- * copyright notice and this permission notice appear in all copies.
- *
- * THE SOFTWARE IS PROVIDED "AS IS" AND ISC DISCLAIMS ALL WARRANTIES
- * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
- * MERCHANTABILITY AND FITNESS.  IN NO EVENT SHALL ISC BE LIABLE FOR
- * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
- * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
- * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT
- * OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
- */
-
-/* ev_streams.c - implement asynch stream file IO for the eventlib
- * vix 04mar96 [initial]
- */
-
-#if !defined(LINT) && !defined(CODECENTER)
-static const char rcsid[] = "$Id: ev_streams.c,v 1.4.18.1 2005/04/27 05:01:06 sra Exp $";
-#endif
-
-#include "port_before.h"
-#include "fd_setsize.h"
-
-#include <sys/types.h>
-#include <sys/uio.h>
-
-#include <errno.h>
-
-#include <isc/eventlib.h>
-#include <isc/assertions.h>
-#include "eventlib_p.h"
-
-#include "port_after.h"
-
-static int	copyvec(evStream *str, const struct iovec *iov, int iocnt);
-static void	consume(evStream *str, size_t bytes);
-static void	done(evContext opaqueCtx, evStream *str);
-static void	writable(evContext opaqueCtx, void *uap, int fd, int evmask);
-static void	readable(evContext opaqueCtx, void *uap, int fd, int evmask);
-
-struct iovec
-evConsIovec(void *buf, size_t cnt) {
-	struct iovec ret;
-
-	memset(&ret, 0xf5, sizeof ret);
-	ret.iov_base = buf;
-	ret.iov_len = cnt;
-	return (ret);
-}
-
-int
-evWrite(evContext opaqueCtx, int fd, const struct iovec *iov, int iocnt,
-	evStreamFunc func, void *uap, evStreamID *id)
-{
-	evContext_p *ctx = opaqueCtx.opaque;
-	evStream *new;
-	int save;
-
-	OKNEW(new);
-	new->func = func;
-	new->uap = uap;
-	new->fd = fd;
-	new->flags = 0;
-	if (evSelectFD(opaqueCtx, fd, EV_WRITE, writable, new, &new->file) < 0)
-		goto free;
-	if (copyvec(new, iov, iocnt) < 0)
-		goto free;
-	new->prevDone = NULL;
-	new->nextDone = NULL;
-	if (ctx->streams != NULL)
-		ctx->streams->prev = new;
-	new->prev = NULL;
-	new->next = ctx->streams;
-	ctx->streams = new;
-	if (id != NULL)
-		id->opaque = new;
-	return (0);
- free:
-	save = errno;
-	FREE(new);
-	errno = save;
-	return (-1);
-}
-
-int
-evRead(evContext opaqueCtx, int fd, const struct iovec *iov, int iocnt,
-       evStreamFunc func, void *uap, evStreamID *id)
-{
-	evContext_p *ctx = opaqueCtx.opaque;
-	evStream *new;
-	int save;
-
-	OKNEW(new);
-	new->func = func;
-	new->uap = uap;
-	new->fd = fd;
-	new->flags = 0;
-	if (evSelectFD(opaqueCtx, fd, EV_READ, readable, new, &new->file) < 0)
-		goto free;
-	if (copyvec(new, iov, iocnt) < 0)
-		goto free;
-	new->prevDone = NULL;
-	new->nextDone = NULL;
-	if (ctx->streams != NULL)
-		ctx->streams->prev = new;
-	new->prev = NULL;
-	new->next = ctx->streams;
-	ctx->streams = new;
-	if (id)
-		id->opaque = new;
-	return (0);
- free:
-	save = errno;
-	FREE(new);
-	errno = save;
-	return (-1);
-}
-
-int
-evTimeRW(evContext opaqueCtx, evStreamID id, evTimerID timer) /*ARGSUSED*/ {
-	evStream *str = id.opaque;
-
-	UNUSED(opaqueCtx);
-
-	str->timer = timer;
-	str->flags |= EV_STR_TIMEROK;
-	return (0);
-}
-
-int
-evUntimeRW(evContext opaqueCtx, evStreamID id) /*ARGSUSED*/ {
-	evStream *str = id.opaque;
-
-	UNUSED(opaqueCtx);
-
-	str->flags &= ~EV_STR_TIMEROK;
-	return (0);
-}
-
-int
-evCancelRW(evContext opaqueCtx, evStreamID id) {
-	evContext_p *ctx = opaqueCtx.opaque;
-	evStream *old = id.opaque;
-
-	/*
-	 * The streams list is doubly threaded.  First, there's ctx->streams
-	 * that's used by evDestroy() to find and cancel all streams.  Second,
-	 * there's ctx->strDone (head) and ctx->strLast (tail) which thread
-	 * through the potentially smaller number of "IO completed" streams,
-	 * used in evGetNext() to avoid scanning the entire list.
-	 */
-
-	/* Unlink from ctx->streams. */
-	if (old->prev != NULL)
-		old->prev->next = old->next;
-	else
-		ctx->streams = old->next;
-	if (old->next != NULL)
-		old->next->prev = old->prev;
-
-	/*
-	 * If 'old' is on the ctx->strDone list, remove it.  Update
-	 * ctx->strLast if necessary.
-	 */
-	if (old->prevDone == NULL && old->nextDone == NULL) {
-		/*
-		 * Either 'old' is the only item on the done list, or it's
-		 * not on the done list.  If the former, then we unlink it
-		 * from the list.  If the latter, we leave the list alone.
-		 */
-		if (ctx->strDone == old) {
-			ctx->strDone = NULL;
-			ctx->strLast = NULL;
-		}
-	} else {
-		if (old->prevDone != NULL)
-			old->prevDone->nextDone = old->nextDone;
-		else
-			ctx->strDone = old->nextDone;
-		if (old->nextDone != NULL)
-			old->nextDone->prevDone = old->prevDone;
-		else
-			ctx->strLast = old->prevDone;
-	}
-
-	/* Deallocate the stream. */
-	if (old->file.opaque)
-		evDeselectFD(opaqueCtx, old->file);
-	memput(old->iovOrig, sizeof (struct iovec) * old->iovOrigCount);
-	FREE(old);
-	return (0);
-}
-
-/* Copy a scatter/gather vector and initialize a stream handler's IO. */
-static int
-copyvec(evStream *str, const struct iovec *iov, int iocnt) {
-	int i;
-
-	str->iovOrig = (struct iovec *)memget(sizeof(struct iovec) * iocnt);
-	if (str->iovOrig == NULL) {
-		errno = ENOMEM;
-		return (-1);
-	}
-	str->ioTotal = 0;
-	for (i = 0; i < iocnt; i++) {
-		str->iovOrig[i] = iov[i];
-		str->ioTotal += iov[i].iov_len;
-	}
-	str->iovOrigCount = iocnt;
-	str->iovCur = str->iovOrig;
-	str->iovCurCount = str->iovOrigCount;
-	str->ioDone = 0;
-	return (0);
-}
-
-/* Pull off or truncate lead iovec(s). */
-static void
-consume(evStream *str, size_t bytes) {
-	while (bytes > 0U) {
-		if (bytes < (size_t)str->iovCur->iov_len) {
-			str->iovCur->iov_len -= bytes;
-			str->iovCur->iov_base = (void *)
-				((u_char *)str->iovCur->iov_base + bytes);
-			str->ioDone += bytes;
-			bytes = 0;
-		} else {
-			bytes -= str->iovCur->iov_len;
-			str->ioDone += str->iovCur->iov_len;
-			str->iovCur++;
-			str->iovCurCount--;
-		}
-	}
-}
-
-/* Add a stream to Done list and deselect the FD. */
-static void
-done(evContext opaqueCtx, evStream *str) {
-	evContext_p *ctx = opaqueCtx.opaque;
-
-	if (ctx->strLast != NULL) {
-		str->prevDone = ctx->strLast;
-		ctx->strLast->nextDone = str;
-		ctx->strLast = str;
-	} else {
-		INSIST(ctx->strDone == NULL);
-		ctx->strDone = ctx->strLast = str;
-	}
-	evDeselectFD(opaqueCtx, str->file);
-	str->file.opaque = NULL;
-	/* evDrop() will call evCancelRW() on us. */
-}
-
-/* Dribble out some bytes on the stream.  (Called by evDispatch().) */
-static void
-writable(evContext opaqueCtx, void *uap, int fd, int evmask) {
-	evStream *str = uap;
-	int bytes;
-
-	UNUSED(evmask);
-
-	bytes = writev(fd, str->iovCur, str->iovCurCount);
-	if (bytes > 0) {
-		if ((str->flags & EV_STR_TIMEROK) != 0)
-			evTouchIdleTimer(opaqueCtx, str->timer);
-		consume(str, bytes);
-	} else {
-		if (bytes < 0 && errno != EINTR) {
-			str->ioDone = -1;
-			str->ioErrno = errno;
-		}
-	}
-	if (str->ioDone == -1 || str->ioDone == str->ioTotal)
-		done(opaqueCtx, str);
-}
-
-/* Scoop up some bytes from the stream.  (Called by evDispatch().) */
-static void
-readable(evContext opaqueCtx, void *uap, int fd, int evmask) {
-	evStream *str = uap;
-	int bytes;
-
-	UNUSED(evmask);
-
-	bytes = readv(fd, str->iovCur, str->iovCurCount);
-	if (bytes > 0) {
-		if ((str->flags & EV_STR_TIMEROK) != 0)
-			evTouchIdleTimer(opaqueCtx, str->timer);
-		consume(str, bytes);
-	} else {
-		if (bytes == 0)
-			str->ioDone = 0;
-		else {
-			if (errno != EINTR) {
-				str->ioDone = -1;
-				str->ioErrno = errno;
-			}
-		}
-	}
-	if (str->ioDone <= 0 || str->ioDone == str->ioTotal)
-		done(opaqueCtx, str);
-}
-
-/*! \file */