src/ucx/utils.h

changeset 61
47a5fc33590a
parent 60
9f25df78925e
child 62
3fff4c364ffc
     1.1 --- a/src/ucx/utils.h	Thu Nov 10 18:44:48 2016 +0100
     1.2 +++ /dev/null	Thu Jan 01 00:00:00 1970 +0000
     1.3 @@ -1,254 +0,0 @@
     1.4 -/*
     1.5 - * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS HEADER.
     1.6 - *
     1.7 - * Copyright 2015 Olaf Wintermann. All rights reserved.
     1.8 - *
     1.9 - * Redistribution and use in source and binary forms, with or without
    1.10 - * modification, are permitted provided that the following conditions are met:
    1.11 - *
    1.12 - *   1. Redistributions of source code must retain the above copyright
    1.13 - *      notice, this list of conditions and the following disclaimer.
    1.14 - *
    1.15 - *   2. Redistributions in binary form must reproduce the above copyright
    1.16 - *      notice, this list of conditions and the following disclaimer in the
    1.17 - *      documentation and/or other materials provided with the distribution.
    1.18 - *
    1.19 - * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
    1.20 - * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
    1.21 - * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
    1.22 - * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE
    1.23 - * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
    1.24 - * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
    1.25 - * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
    1.26 - * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
    1.27 - * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
    1.28 - * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
    1.29 - * POSSIBILITY OF SUCH DAMAGE.
    1.30 - */
    1.31 -
    1.32 -/**
    1.33 - * @file utils.h
    1.34 - * 
    1.35 - * Compare, copy and printf functions.
    1.36 - * 
    1.37 - * @author Mike Becker
    1.38 - * @author Olaf Wintermann
    1.39 - */
    1.40 -
    1.41 -#ifndef UCX_UTILS_H
    1.42 -#define UCX_UTILS_H
    1.43 -
    1.44 -#ifdef __cplusplus
    1.45 -extern "C" {
    1.46 -#endif
    1.47 -
    1.48 -#include "ucx.h"
    1.49 -#include "string.h"
    1.50 -#include "allocator.h"
    1.51 -#include <inttypes.h>
    1.52 -#include <string.h>
    1.53 -#include <stdarg.h>
    1.54 -
    1.55 -/**
    1.56 - * Copies a string.
    1.57 - * @param s the string to copy
    1.58 - * @param data omitted
    1.59 - * @return a pointer to a copy of s1 that can be passed to free(void*)
    1.60 - */
    1.61 -void *ucx_strcpy(void *s, void *data);
    1.62 -
    1.63 -/**
    1.64 - * Copies a memory area.
    1.65 - * @param m a pointer to the memory area
    1.66 - * @param n a pointer to the size_t containing the size of the memory area
    1.67 - * @return a pointer to a copy of the specified memory area that can
    1.68 - * be passed to free(void*)
    1.69 - */
    1.70 -void *ucx_memcpy(void *m, void *n);
    1.71 -
    1.72 -
    1.73 -/**
    1.74 - * Reads data from a stream and writes it to another stream.
    1.75 - * 
    1.76 - * @param src the source stream
    1.77 - * @param dest the destination stream
    1.78 - * @param rfnc the read function
    1.79 - * @param wfnc the write function
    1.80 - * @param buf a pointer to the copy buffer or <code>NULL</code> if a buffer
    1.81 - * shall be implicitly created on the heap
    1.82 - * @param bufsize the size of the copy buffer - if <code>NULL</code> was
    1.83 - * provided for <code>buf</code>, this is the size of the buffer that shall be
    1.84 - * implicitly created
    1.85 - * @param n the maximum number of bytes that shall be copied
    1.86 - * @return the total number of bytes copied
    1.87 -  */
    1.88 -size_t ucx_stream_copy(void *src, void *dest, read_func rfnc, write_func wfnc,
    1.89 -        char* buf, size_t bufsize, size_t n);
    1.90 -
    1.91 -/**
    1.92 - * Shorthand for ucx_stream_copy using the default copy buffer.
    1.93 - * 
    1.94 - * @param src the source stream
    1.95 - * @param dest the destination stream
    1.96 - * @param rfnc the read function
    1.97 - * @param wfnc the write function
    1.98 - * @return total number of bytes copied
    1.99 - */
   1.100 -#define ucx_stream_hcopy(src,dest,rfnc,wfnc) ucx_stream_copy(\
   1.101 -        src, dest, (read_func)rfnc, (write_func)wfnc, NULL, 0x100, (size_t)-1)
   1.102 -
   1.103 -/**
   1.104 - * Shorthand for ucx_stream_copy using the default copy buffer and a copy limit.
   1.105 - * 
   1.106 - * @param src the source stream
   1.107 - * @param dest the destination stream
   1.108 - * @param rfnc the read function
   1.109 - * @param wfnc the write function
   1.110 - * @param n maximum number of bytes that shall be copied
   1.111 - * @return total number of bytes copied
   1.112 - */
   1.113 -#define ucx_stream_ncopy(src,dest,rfnc,wfnc, n) ucx_stream_copy(\
   1.114 -        src, dest, (read_func)rfnc, (write_func)wfnc, NULL, 0x100, n)
   1.115 -
   1.116 -/**
   1.117 - * Wraps the strcmp function.
   1.118 - * @param s1 string one
   1.119 - * @param s2 string two
   1.120 - * @param data omitted
   1.121 - * @return the result of strcmp(s1, s2)
   1.122 - */
   1.123 -int ucx_strcmp(void *s1, void *s2, void *data);
   1.124 -
   1.125 -/**
   1.126 - * Wraps the strncmp function.
   1.127 - * @param s1 string one
   1.128 - * @param s2 string two
   1.129 - * @param n a pointer to the size_t containing the third strncmp parameter
   1.130 - * @return the result of strncmp(s1, s2, *n)
   1.131 - */
   1.132 -int ucx_strncmp(void *s1, void *s2, void *n);
   1.133 -
   1.134 -/**
   1.135 - * Compares two integers of type int.
   1.136 - * @param i1 pointer to integer one
   1.137 - * @param i2 pointer to integer two
   1.138 - * @param data omitted
   1.139 - * @return -1, if *i1 is less than *i2, 0 if both are equal,
   1.140 - * 1 if *i1 is greater than *i2
   1.141 - */
   1.142 -int ucx_intcmp(void *i1, void *i2, void *data);
   1.143 -
   1.144 -/**
   1.145 - * Compares two real numbers of type float.
   1.146 - * @param f1 pointer to float one
   1.147 - * @param f2 pointer to float two
   1.148 - * @param data if provided: a pointer to precision (default: 1e-6f)
   1.149 - * @return -1, if *f1 is less than *f2, 0 if both are equal,
   1.150 - * 1 if *f1 is greater than *f2
   1.151 - */
   1.152 -
   1.153 -int ucx_floatcmp(void *f1, void *f2, void *data);
   1.154 -
   1.155 -/**
   1.156 - * Compares two real numbers of type double.
   1.157 - * @param d1 pointer to double one
   1.158 - * @param d2 pointer to double two
   1.159 - * @param data if provided: a pointer to precision (default: 1e-14)
   1.160 - * @return -1, if *d1 is less than *d2, 0 if both are equal,
   1.161 - * 1 if *d1 is greater than *d2
   1.162 - */
   1.163 -int ucx_doublecmp(void *d1, void *d2, void *data);
   1.164 -
   1.165 -/**
   1.166 - * Compares two pointers.
   1.167 - * @param ptr1 pointer one
   1.168 - * @param ptr2 pointer two
   1.169 - * @param data omitted
   1.170 - * @return -1 if ptr1 is less than ptr2, 0 if both are equal,
   1.171 - * 1 if ptr1 is greater than ptr2
   1.172 - */
   1.173 -int ucx_ptrcmp(void *ptr1, void *ptr2, void *data);
   1.174 -
   1.175 -/**
   1.176 - * Compares two memory areas.
   1.177 - * @param ptr1 pointer one
   1.178 - * @param ptr2 pointer two
   1.179 - * @param n a pointer to the size_t containing the third parameter for memcmp
   1.180 - * @return the result of memcmp(ptr1, ptr2, *n)
   1.181 - */
   1.182 -int ucx_memcmp(void *ptr1, void *ptr2, void *n);
   1.183 -
   1.184 -/**
   1.185 - * A <code>printf()</code> like function which writes the output to a stream by
   1.186 - * using a write_func().
   1.187 - * @param stream the stream the data is written to
   1.188 - * @param wfc the write function
   1.189 - * @param fmt format string
   1.190 - * @param ... additional arguments
   1.191 - * @return the total number of bytes written
   1.192 - */
   1.193 -int ucx_fprintf(void *stream, write_func wfc, const char *fmt, ...);
   1.194 -
   1.195 -/**
   1.196 - * <code>va_list</code> version of ucx_fprintf().
   1.197 - * @param stream the stream the data is written to
   1.198 - * @param wfc the write function
   1.199 - * @param fmt format string
   1.200 - * @param ap argument list
   1.201 - * @return the total number of bytes written
   1.202 - * @see ucx_fprintf()
   1.203 - */
   1.204 -int ucx_vfprintf(void *stream, write_func wfc, const char *fmt, va_list ap);
   1.205 -
   1.206 -/**
   1.207 - * A <code>printf()</code> like function which allocates space for a sstr_t
   1.208 - * the result is written to.
   1.209 - * 
   1.210 - * <b>Attention</b>: The sstr_t data is allocated with the allocators
   1.211 - * ucx_allocator_malloc() function. So it is implementation dependent, if
   1.212 - * the returned sstr_t.ptr pointer must be passed to the allocators
   1.213 - * ucx_allocator_free() function manually.
   1.214 - * 
   1.215 - * <b>Note</b>: The sstr_t.ptr of the return value will <i>always</i> be
   1.216 - * <code>NULL</code>-terminated.
   1.217 - * 
   1.218 - * @param allocator the UcxAllocator used for allocating the result sstr_t
   1.219 - * @param fmt format string
   1.220 - * @param ... additional arguments
   1.221 - * @return a sstr_t containing the formatted string
   1.222 - */
   1.223 -sstr_t ucx_asprintf(UcxAllocator *allocator, const char *fmt, ...);
   1.224 -
   1.225 -/** Shortcut for ucx_asprintf() with default allocator. */
   1.226 -#define ucx_sprintf(fmt, ...) \
   1.227 -    ucx_asprintf(ucx_default_allocator(), fmt, __VA_ARGS__)
   1.228 -
   1.229 -/**
   1.230 - * <code>va_list</code> version of ucx_asprintf().
   1.231 - * 
   1.232 - * @param allocator the UcxAllocator used for allocating the result sstr_t
   1.233 - * @param fmt format string
   1.234 - * @param ap argument list
   1.235 - * @return a sstr_t containing the formatted string
   1.236 - * @see ucx_asprintf()
   1.237 - */
   1.238 -sstr_t ucx_vasprintf(UcxAllocator *allocator, const char *fmt, va_list ap);
   1.239 -
   1.240 -/**
   1.241 - * A <code>printf()</code> like function which writes the output to an
   1.242 - * UcxBuffer.
   1.243 - * 
   1.244 - * @param buffer the buffer the data is written to
   1.245 - * @param ... format string and additional arguments
   1.246 - * @return the total number of bytes written
   1.247 - * @see ucx_fprintf()
   1.248 - */
   1.249 -#define ucx_bprintf(buffer, ...) ucx_fprintf((UcxBuffer*)buffer, \
   1.250 -        (write_func)ucx_buffer_write, __VA_ARGS__)
   1.251 -
   1.252 -#ifdef __cplusplus
   1.253 -}
   1.254 -#endif
   1.255 -
   1.256 -#endif /* UCX_UTILS_H */
   1.257 -

mercurial