ucx: src/utils.c@edb9f875b7f9 (annotated)

src/utils.c@edb9f875b7f9 (annotated)

src/utils.c

Fri, 12 Apr 2024 21:48:12 +0200

author: Mike Becker <universe@uap-core.de>
date: Fri, 12 Apr 2024 21:48:12 +0200
changeset 849: edb9f875b7f9
parent 736: 70885c3d15b0
permissions: -rw-r--r--

improves interface of cx_sprintf() variants

 /*
  * 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

Mercurial > hg > ucx / annotate

src/utils.c@edb9f875b7f9 (annotated)

src/utils.c