LXR qemu/osdep.h

   1#ifndef QEMU_OSDEP_H
   2#define QEMU_OSDEP_H
   3
   4#include <stdarg.h>
   5#ifdef __OpenBSD__
   6#include <sys/types.h>
   7#include <sys/signal.h>
   8#endif
   9
  10#ifndef _WIN32
  11#include <sys/time.h>
  12#endif
  13
  14#ifndef glue
  15#define xglue(x, y) x ## y
  16#define glue(x, y) xglue(x, y)
  17#define stringify(s)    tostring(s)
  18#define tostring(s)     #s
  19#endif
  20
  21#ifndef likely
  22#if __GNUC__ < 3
  23#define __builtin_expect(x, n) (x)
  24#endif
  25
  26#define likely(x)   __builtin_expect(!!(x), 1)
  27#define unlikely(x)   __builtin_expect(!!(x), 0)
  28#endif
  29
  30#ifndef offsetof
  31#define offsetof(TYPE, MEMBER) ((size_t) &((TYPE *) 0)->MEMBER)
  32#endif
  33#ifndef container_of
  34#define container_of(ptr, type, member) ({                      \
  35        const typeof(((type *) 0)->member) *__mptr = (ptr);     \
  36        (type *) ((char *) __mptr - offsetof(type, member));})
  37#endif
  38
  39#ifndef MIN
  40#define MIN(a, b) (((a) < (b)) ? (a) : (b))
  41#endif
  42#ifndef MAX
  43#define MAX(a, b) (((a) > (b)) ? (a) : (b))
  44#endif
  45
  46#ifndef ARRAY_SIZE
  47#define ARRAY_SIZE(x) (sizeof(x) / sizeof((x)[0]))
  48#endif
  49
  50#ifndef always_inline
  51#if (__GNUC__ < 3) || defined(__APPLE__)
  52#define always_inline inline
  53#else
  54#define always_inline __attribute__ (( always_inline )) __inline__
  55#ifdef __OPTIMIZE__
  56#define inline always_inline
  57#endif
  58#endif
  59#else
  60#define inline always_inline
  61#endif
  62
  63#ifdef __i386__
  64#define REGPARM __attribute((regparm(3)))
  65#else
  66#define REGPARM
  67#endif
  68
  69#define qemu_printf printf
  70
  71#if defined (__GNUC__) && defined (__GNUC_MINOR__)
  72# define QEMU_GNUC_PREREQ(maj, min) \
  73         ((__GNUC__ << 16) + __GNUC_MINOR__ >= ((maj) << 16) + (min))
  74#else
  75# define QEMU_GNUC_PREREQ(maj, min) 0
  76#endif
  77
  78void *qemu_memalign(size_t alignment, size_t size);
  79void *qemu_vmalloc(size_t size);
  80void qemu_vfree(void *ptr);
  81
  82int qemu_create_pidfile(const char *filename);
  83
  84#ifdef _WIN32
  85int ffs(int i);
  86
  87typedef struct {
  88    long tv_sec;
  89    long tv_usec;
  90} qemu_timeval;
  91int qemu_gettimeofday(qemu_timeval *tp);
  92#else
  93typedef struct timeval qemu_timeval;
  94#define qemu_gettimeofday(tp) gettimeofday(tp, NULL);
  95#endif /* !_WIN32 */
  96
  97#endif
  98