--- a/src/utils.c Sat Nov 02 13:38:51 2024 +0100 +++ /dev/null Thu Jan 01 00:00:00 1970 +0000 @@ -1,99 +0,0 @@ -/* - * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS HEADER. - * - * Copyright 2021 Mike Becker, Olaf Wintermann All rights reserved. - * - * 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. - * - * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "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 COPYRIGHT HOLDER OR CONTRIBUTORS 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. - */ - -#include "cx/utils.h" - -#ifndef CX_STREAM_BCOPY_BUF_SIZE -#define CX_STREAM_BCOPY_BUF_SIZE 8192 -#endif - -#ifndef CX_STREAM_COPY_BUF_SIZE -#define CX_STREAM_COPY_BUF_SIZE 1024 -#endif - -size_t cx_stream_bncopy( - void *src, - void *dest, - cx_read_func rfnc, - cx_write_func wfnc, - char *buf, - size_t bufsize, - size_t n -) { - if (n == 0) { - return 0; - } - - char *lbuf; - size_t ncp = 0; - - if (buf) { - if (bufsize == 0) return 0; - lbuf = buf; - } else { - if (bufsize == 0) bufsize = CX_STREAM_BCOPY_BUF_SIZE; - lbuf = malloc(bufsize); - if (lbuf == NULL) { - return 0; - } - } - - size_t r; - size_t rn = bufsize > n ? n : bufsize; - while ((r = rfnc(lbuf, 1, rn, src)) != 0) { - r = wfnc(lbuf, 1, r, dest); - ncp += r; - n -= r; - rn = bufsize > n ? n : bufsize; - if (r == 0 || n == 0) { - break; - } - } - - if (lbuf != buf) { - free(lbuf); - } - - return ncp; -} - -size_t cx_stream_ncopy( - void *src, - void *dest, - cx_read_func rfnc, - cx_write_func wfnc, - size_t n -) { - char buf[CX_STREAM_COPY_BUF_SIZE]; - return cx_stream_bncopy(src, dest, rfnc, wfnc, - buf, CX_STREAM_COPY_BUF_SIZE, n); -} - -#ifndef CX_SZMUL_BUILTIN -#include "szmul.c" -#endif