2 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS HEADER.
4 * Copyright 2021 Mike Becker, Olaf Wintermann All rights reserved.
6 * Redistribution and use in source and binary forms, with or without
7 * modification, are permitted provided that the following conditions are met:
9 * 1. Redistributions of source code must retain the above copyright
10 * notice, this list of conditions and the following disclaimer.
12 * 2. Redistributions in binary form must reproduce the above copyright
13 * notice, this list of conditions and the following disclaimer in the
14 * documentation and/or other materials provided with the distribution.
16 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
17 * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
18 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
19 * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE
20 * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
21 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
22 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
23 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
24 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
25 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
26 * POSSIBILITY OF SUCH DAMAGE.
31 #define CX_STREAM_BCOPY_BUF_SIZE 8192
32 #define CX_STREAM_COPY_BUF_SIZE 1024
34 size_t cx_stream_bncopy(
51 if (bufsize == 0) return 0;
54 if (bufsize == 0) bufsize = CX_STREAM_BCOPY_BUF_SIZE;
55 lbuf = malloc(bufsize);
62 size_t rn = bufsize > n ? n : bufsize;
63 while ((r = rfnc(lbuf, 1, rn, src)) != 0) {
64 r = wfnc(lbuf, 1, r, dest);
67 rn = bufsize > n ? n : bufsize;
68 if (r == 0 || n == 0) {
80 size_t cx_stream_ncopy(
87 char buf[CX_STREAM_COPY_BUF_SIZE];
88 return cx_stream_bncopy(src, dest, rfnc, wfnc,
89 buf, CX_STREAM_COPY_BUF_SIZE, n);
92 #ifndef CX_SZMUL_BUILTIN