ucx: ucx/utils.c@15f871f50bfd (annotated)

ucx/utils.c@15f871f50bfd (annotated)

ucx/utils.c

Tue, 13 Aug 2013 14:20:12 +0200

author: Mike Becker <universe@uap-core.de>
date: Tue, 13 Aug 2013 14:20:12 +0200
changeset 140: 15f871f50bfd
parent 103: 08018864fb91
child 142: ee8cb27d8b8e
permissions: -rw-r--r--

completed documentation + changed API for buffer/stream generic copy functions

 /*
  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS HEADER.
  *
  * Copyright 2013 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 "utils.h"
 #include <math.h>
 /* COPY FUCNTIONS */
 void* ucx_strcpy(void* s, void* data) {
     char *str = (char*) s;
     size_t n = 1+strlen(str);
     char *cpy = (char*) malloc(n);
     memcpy(cpy, str, n);
     return cpy;
 }
 void* ucx_memcpy(void* m, void* n) {
     size_t k = *((size_t*)n);
     void *cpy = malloc(k);
     memcpy(cpy, m, k);
     return cpy;
 }
 size_t ucx_stream_copy(void *src, void *dest, read_func readfnc,
         write_func writefnc, char* buf, size_t bufsize, size_t n) {
     if(n == 0 || bufsize == 0) {
         return 0;
     }
     size_t ncp = 0;
     if (!buf) {
         buf = (char*)malloc(bufsize);
         if(buf == NULL) {
             return 0;
         }
     }
     size_t r;
     size_t rn = bufsize > n ? n : bufsize;
     while((r = readfnc(buf, 1, rn, src)) != 0) {
         r = writefnc(buf, 1, r, dest);
         ncp += r;
         n -= r;
         rn = bufsize > n ? n : bufsize;
         if(r == 0 || n == 0) {
             break;
         }
     }
     free(buf);
     return ncp;
 }
 /* COMPARE FUNCTION */
 int ucx_strcmp(void *s1, void *s2, void *data) {
     return strcmp((char*)s1, (char*)s2);
 }
 int ucx_strncmp(void *s1, void *s2, void *n) {
     return strncmp((char*)s1, (char*)s2, *((size_t*) n));
 }
 int ucx_intcmp(void *i1, void *i2, void *data) {
    int a = *((int*) i1);
    int b = *((int*) i2);
    if (a == b) {
        return 0;
    } else {
        return a < b ? -1 : 1;
    }
 }
 int ucx_floatcmp(void *f1, void *f2, void *epsilon) {
    float a = *((float*) f1);
    float b = *((float*) f2);
    float e = !epsilon ? 1e-6f : *((float*)epsilon);
    if (fabsf(a - b) < e) {
        return 0;
    } else {
        return a < b ? -1 : 1;
    }
 }
 int ucx_doublecmp(void *d1, void *d2, void *epsilon) {
    double a = *((float*) d1);
    double b = *((float*) d2);
    double e = !epsilon ? 1e-14 : *((double*)epsilon);
    if (fabs(a - b) < e) {
        return 0;
    } else {
        return a < b ? -1 : 1;
    }
 }
 int ucx_ptrcmp(void *ptr1, void *ptr2, void *data) {
     if (ptr1 == ptr2) {
         return 0;
     } else {
         return ptr1 < ptr2 ? -1 : 1;
     }
 }
 int ucx_memcmp(void *ptr1, void *ptr2, void *n) {
     return memcmp(ptr1, ptr2, *((size_t*)n));
 }

Mercurial > hg > ucx / annotate

ucx/utils.c@15f871f50bfd (annotated)

ucx/utils.c