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 glue
  11 #define xglue(x, y) x ## y
  12 #define glue(x, y) xglue(x, y)
  13 #define stringify(s)    tostring(s)
  14 #define tostring(s)     #s
  15 #endif
  16
  17 #ifndef likely
  18 #if __GNUC__ < 3
  19 #define __builtin_expect(x, n) (x)
  20 #endif
  21
  22 #define likely(x)   __builtin_expect(!!(x), 1)
  23 #define unlikely(x)   __builtin_expect(!!(x), 0)
  24 #endif
  25
  26 #ifndef MIN
  27 #define MIN(a, b) (((a) < (b)) ? (a) : (b))
  28 #endif
  29 #ifndef MAX
  30 #define MAX(a, b) (((a) > (b)) ? (a) : (b))
  31 #endif
  32
  33 #ifndef ARRAY_SIZE
  34 #define ARRAY_SIZE(x) (sizeof(x) / sizeof((x)[0]))
  35 #endif
  36
  37 #ifndef always_inline
  38 #if (__GNUC__ < 3) || defined(__APPLE__)
  39 #define always_inline inline
  40 #else
  41 #define always_inline __attribute__ (( always_inline )) __inline__
  42 #define inline always_inline
  43 #endif
  44 #else
  45 #define inline always_inline
  46 #endif
  47
  48 #ifdef __i386__
  49 #define REGPARM __attribute((regparm(3)))
  50 #else
  51 #define REGPARM
  52 #endif
  53
  54 #define qemu_printf printf
  55
  56 void *qemu_memalign(size_t alignment, size_t size);
  57 void *qemu_vmalloc(size_t size);
  58 void qemu_vfree(void *ptr);
  59
  60 int qemu_create_pidfile(const char *filename);
  61
  62 #ifdef _WIN32
  63 int ffs(int i);
  64
  65 typedef struct {
  66     long tv_sec;
  67     long tv_usec;
  68 } qemu_timeval;
  69 int qemu_gettimeofday(qemu_timeval *tp);
  70 #else
  71 typedef struct timeval qemu_timeval;
  72 #define qemu_gettimeofday(tp) gettimeofday(tp, NULL);
  73 #endif /* !_WIN32 */
  74
  75 #endif