ucx: ucx/ucx.h@fc8d05972af7

     1 /*

     2  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS HEADER.

     3  *

     4  * Copyright 2013 Olaf Wintermann. All rights reserved.

     5  *

     6  * Redistribution and use in source and binary forms, with or without

     7  * modification, are permitted provided that the following conditions are met:

     8  *

     9  *   1. Redistributions of source code must retain the above copyright

    10  *      notice, this list of conditions and the following disclaimer.

    11  *

    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.

    15  *

    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.

    27  */

    28 /**

    29  * Main UCX Header providing most common definitions.

    30  *

    31  * @file   ucx.h

    32  * @author Mike Becker

    33  * @author Olaf Wintermann

    34  */

    36 #ifndef UCX_H

    37 #define	UCX_H

    39 /** Major UCX version as integer constant. */

    40 #define UCX_VERSION_MAJOR   1

    42 /** Minor UCX version as integer constant. */

    43 #define UCX_VERSION_MINOR   0

    45 /** The UCX version in format [major].[minor] */

    46 #define UCX_VERSION UCX_VERSION_MAJOR.UCX_VERSION_MINOR

    48 #include <stdlib.h>

    50 #ifdef _WIN32

    51 #if !(defined __ssize_t_defined || defined _SSIZE_T_)

    52 #include <BaseTsd.h>

    53 typedef SSIZE_T ssize_t;

    54 #define __ssize_t_defined

    55 #define _SSIZE_T_

    56 #endif /* __ssize_t_defined and _SSIZE_T */

    57 #else /* !_WIN32 */

    58 #include <sys/types.h>

    59 #endif /* _WIN32 */

    61 #ifdef	__cplusplus

    62 #ifndef _Bool

    63 #define _Bool bool

    64 #define restrict

    65 #endif

    66 #define UCX_EXTERN extern "C"

    67 extern "C" {

    68 #else

    69 #define UCX_EXTERN

    70 #endif

    72 /**

    73  * Function pointer to a compare function.

    74  *

    75  * The compare function shall take three arguments: the two values that shall be

    76  * compared and optional additional data.

    77  * The function shall then return -1 if the first argument is less than the

    78  * second argument, 1 if the first argument is greater than the second argument

    79  * and 0 if both arguments are equal. If the third argument is

    80  * <code>NULL</code>, it shall be ignored.

    81  */

    82 typedef int(*cmp_func)(void*,void*,void*);

    84 /**

    85  * Function pointer to a copy function.

    86  *

    87  * The copy function shall create a copy of the first argument and may use

    88  * additional data provided by the second argument. If the second argument is

    89  * <code>NULL</code>, it shall be ignored.

    91  * <b>Attention:</b> if pointers returned by functions of this type may be

    92  * passed to <code>free()</code> depends on the implementation of the

    93  * respective <code>copy_func</code>.

    94  */

    95 typedef void*(*copy_func)(void*,void*);

    97 /**

    98  * Function pointer to a write function.

    99  *

   100  * The signature of the write function shall be compatible to the signature

   101  * of standard <code>fwrite</code>, though it may use arbitrary data types for

   102  * source and destination.

   103  *

   104  * The arguments shall contain (in ascending order): a pointer to the source,

   105  * the length of one element, the element count and a pointer to the

   106  * destination.

   107  */

   108 typedef size_t(*write_func)(const void*, size_t, size_t, void*);

   110 /**

   111  * Function pointer to a read function.

   112  *

   113  * The signature of the read function shall be compatible to the signature

   114  * of standard <code>fread</code>, though it may use arbitrary data types for

   115  * source and destination.

   116  *

   117  * The arguments shall contain (in ascending order): a pointer to the

   118  * destination, the length of one element, the element count and a pointer to

   119  * the source.

   120  */

   121 typedef size_t(*read_func)(void*, size_t, size_t, void*);

   123 #ifdef	__cplusplus

   124 }

   125 #endif

   127 #endif	/* UCX_H */

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