Security-57031.1.35.tar.gz

[apple/security.git] / libsecurity_utilities / lib / fdsel.cpp

diff --git a/libsecurity_utilities/lib/fdsel.cpp b/libsecurity_utilities/lib/fdsel.cpp
deleted file mode 100644 (file)
index 56c4e04..0000000
--- a/libsecurity_utilities/lib/fdsel.cpp
+++ /dev/null
@@ -1,96 +0,0 @@
-/*
- * Copyright (c) 2000-2001,2004 Apple Computer, Inc. All Rights Reserved.
- * 
- * @APPLE_LICENSE_HEADER_START@
- * 
- * This file contains Original Code and/or Modifications of Original Code
- * as defined in and that are subject to the Apple Public Source License
- * Version 2.0 (the 'License'). You may not use this file except in
- * compliance with the License. Please obtain a copy of the License at
- * http://www.opensource.apple.com/apsl/ and read it before using this
- * file.
- * 
- * The Original Code and all software distributed under the License are
- * distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER
- * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES,
- * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY,
- * FITNESS FOR A PARTICULAR PURPOSE, QUIET ENJOYMENT OR NON-INFRINGEMENT.
- * Please see the License for the specific language governing rights and
- * limitations under the License.
- * 
- * @APPLE_LICENSE_HEADER_END@
- */
-
-
-//
-// fdsel - select-style file descriptor set management
-//
-#include "fdsel.h"
-
-
-namespace Security {
-namespace UnixPlusPlus {
-
-
-//
-// Throw the bitvectors away on destruction
-// 
-FDSet::~FDSet()
-{
-    delete mBits;
-    delete mUseBits;
-}
-
-
-//
-// Given the old and desired new sizes (in fd_mask words), grow
-// the bitvectors. New storage is zero filled. Note that we preserve
-// the mUseBits vector, so this is safe to do during a post-select scan.
-// This function cannot shrink the bitmaps.
-//
-void FDSet::grow(int oldWords, int newWords)
-{
-    assert(oldWords < newWords);
-    grow(mBits, oldWords, newWords);
-    grow(mUseBits, oldWords, newWords);
-}
-
-void FDSet::grow(fd_mask * &bits, int oldWords, int newWords)
-{
-    fd_mask *newBits = new fd_mask[newWords];
-    memcpy(newBits, bits, oldWords * sizeof(fd_mask));
-    memset(newBits + oldWords, 0, (newWords - oldWords) * sizeof(fd_mask));
-    delete [] bits;
-    bits = newBits;
-}
-
-
-//
-// Set or clear a single bit in the map.
-// No check for overflow is perfomed.
-//
-void FDSet::set(int fd, bool on)
-{
-    if (on) {
-        FD_SET(fd, (fd_set *)mBits);
-    } else {
-        FD_CLR(fd, (fd_set *)mBits);
-        FD_CLR(fd, (fd_set *)mUseBits);
-    }
-}
-
-
-//
-// Copy only the first words fd_mask words from mBits to mUseBits
-// and return that for select(2) use.
-//
-fd_set *FDSet::make(int words)
-{
-    //@@@ if empty -> return NULL (but check caller for [] use)
-    memcpy(mUseBits, mBits, words * sizeof(fd_mask));
-    return (fd_set *)mUseBits;
-}
-
-
-}      // end namespace IPPlusPlus
-}      // end namespace Security