code.delx.au - pulseaudio/blob - src/pulsecore/macro.h

   1 #ifndef foopulsemacrohfoo
   2 #define foopulsemacrohfoo
   3
   4 /* $Id$ */
   5
   6 /***
   7   This file is part of PulseAudio.
   8
   9   Copyright 2004-2006 Lennart Poettering
  10
  11   PulseAudio is free software; you can redistribute it and/or modify
  12   it under the terms of the GNU Lesser General Public License as published
  13   by the Free Software Foundation; either version 2 of the License,
  14   or (at your option) any later version.
  15
  16   PulseAudio is distributed in the hope that it will be useful, but
  17   WITHOUT ANY WARRANTY; without even the implied warranty of
  18   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
  19   General Public License for more details.
  20
  21   You should have received a copy of the GNU Lesser General Public License
  22   along with PulseAudio; if not, write to the Free Software
  23   Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307
  24   USA.
  25 ***/
  26
  27 #include <sys/types.h>
  28 #include <pulsecore/log.h>
  29
  30 static inline size_t pa_align(size_t l) {
  31     return (((l + sizeof(void*) - 1) / sizeof(void*)) * sizeof(void*));
  32 }
  33
  34 #define PA_ALIGN(x) (pa_align(x))
  35
  36 #define PA_ELEMENTSOF(x) (sizeof(x)/sizeof((x)[0]))
  37
  38 #define SA_MAX(a, b) ((a) > (b) ? (a) : (b))
  39 #define SA_MIN(a, b) ((a) < (b) ? (a) : (b))
  40
  41 #ifdef __GNUC__
  42 #define PA_PRETTY_FUNCTION __PRETTY_FUNCTION__
  43 #else
  44 #define PA_PRETTY_FUNCTION ""
  45 #endif
  46
  47 #define pa_return_if_fail(expr) \
  48     do { \
  49         if (!(expr)) { \
  50             pa_log_debug("%s: Assertion <%s> failed.\n", PA_PRETTY_FUNCTION, #expr ); \
  51             return; \
  52         } \
  53     } while(0)
  54
  55 #define pa_return_val_if_fail(expr, val) \
  56     do { \
  57         if (!(expr)) { \
  58             pa_log_debug("%s: Assertion <%s> failed.\n", PA_PRETTY_FUNCTION, #expr ); \
  59             return (val); \
  60         } \
  61     } while(0)
  62
  63 #define pa_return_null_if_fail(expr) pa_return_val_if_fail(expr, NULL)
  64
  65 #define pa_assert assert
  66
  67 #define pa_assert_not_reached() pa_assert(!"Should not be reached.")
  68
  69 /* An assert which guarantees side effects of x */
  70 #define pa_assert_se(x) do {                  \
  71         int _r = !!(x);                       \
  72         pa_assert(_r);                        \
  73     } while(0)
  74
  75 #define PA_PTR_TO_UINT(p) ((unsigned int) (unsigned long) (p))
  76 #define PA_UINT_TO_PTR(u) ((void*) (unsigned long) (u))
  77 #define PA_PTR_TO_UINT32(p) ((uint32_t) PA_PTR_TO_UINT(p))
  78 #define PA_UINT32_TO_PTR(u) PA_UINT_TO_PTR(u)
  79
  80 #endif