CyteKit/UCPlatform.h

   1 /* Cydia - iPhone UIKit Front-End for Debian APT
   2  * Copyright (C) 2008-2011  Jay Freeman (saurik)
   3 */
   4
   5 /* Modified BSD License {{{ */
   6 /*
   7  *        Redistribution and use in source and binary
   8  * forms, with or without modification, are permitted
   9  * provided that the following conditions are met:
  10  *
  11  * 1. Redistributions of source code must retain the
  12  *    above copyright notice, this list of conditions
  13  *    and the following disclaimer.
  14  * 2. Redistributions in binary form must reproduce the
  15  *    above copyright notice, this list of conditions
  16  *    and the following disclaimer in the documentation
  17  *    and/or other materials provided with the
  18  *    distribution.
  19  * 3. The name of the author may not be used to endorse
  20  *    or promote products derived from this software
  21  *    without specific prior written permission.
  22  *
  23  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS''
  24  * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING,
  25  * BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
  26  * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
  27  * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR BE
  28  * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
  29  * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
  30  * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
  31  * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
  32  * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
  33  * LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR
  34  * TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
  35  * ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
  36  * ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  37 */
  38 /* }}} */
  39
  40 #ifndef CyteKit_UCPlatform_H
  41 #define CyteKit_UCPlatform_H
  42
  43 #define __STDC_LIMIT_MACROS
  44 #include <stdint.h>
  45
  46 #include <objc/objc.h>
  47
  48 #include <sys/time.h>
  49 #include <time.h>
  50
  51 #define _forever \
  52     for (;;)
  53
  54 extern struct timeval _ltv;
  55 extern bool _itv;
  56
  57 #define _trace() do { \
  58     struct timeval _ctv; \
  59     gettimeofday(&_ctv, NULL); \
  60     if (!_itv) { \
  61         _itv = true; \
  62         _ltv = _ctv; \
  63     } \
  64     fprintf(stderr, "%lu.%.6u[%f]:_trace()@%s:%u[%s]\n", \
  65         _ctv.tv_sec, _ctv.tv_usec, \
  66         (_ctv.tv_sec - _ltv.tv_sec) + (_ctv.tv_usec - _ltv.tv_usec) / 1000000.0, \
  67         __FILE__, __LINE__, __FUNCTION__\
  68     ); \
  69     _ltv = _ctv; \
  70 } while (false)
  71
  72 #define _assert(test) do \
  73     if (!(test)) { \
  74         fprintf(stderr, "_assert(%d:%s)@%s:%u[%s]\n", errno, #test, __FILE__, __LINE__, __FUNCTION__); \
  75         exit(-1); \
  76     } \
  77 while (false)
  78
  79 #define _not(type) ((type) ~ (type) 0)
  80
  81 #define _transient
  82
  83 #define _label__(x) _label ## x
  84 #define _label_(y) _label__(y)
  85 #define _label _label_(__LINE__)
  86
  87 #define _packed \
  88     __attribute__((__packed__))
  89 #define _finline \
  90     inline __attribute__((__always_inline__))
  91
  92 #define _assume(e) \
  93     _assert(e)
  94
  95 #define _nodefault \
  96     default: \
  97         _assume(false); \
  98         throw;
  99
 100 #define _likely(expr) \
 101     __builtin_expect(expr, 1)
 102
 103 #define _unlikely(expr) \
 104     __builtin_expect(expr, 0)
 105
 106 #endif//CyteKit_UCPlatform_H