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 offsetof

    27 #define offsetof(TYPE, MEMBER) ((size_t) &((TYPE *) 0)->MEMBER)

    28 #endif

    29 #ifndef container_of

    30 #define container_of(ptr, type, member) ({                      \

    31         const typeof(((type *) 0)->member) *__mptr = (ptr);     \

    32         (type *) ((char *) __mptr - offsetof(type, member));})

    33 #endif

    34 

    35 #ifndef MIN

    36 #define MIN(a, b) (((a) < (b)) ? (a) : (b))

    37 #endif

    38 #ifndef MAX

    39 #define MAX(a, b) (((a) > (b)) ? (a) : (b))

    40 #endif

    41 

    42 #ifndef ARRAY_SIZE

    43 #define ARRAY_SIZE(x) (sizeof(x) / sizeof((x)[0]))

    44 #endif

    45 

    46 #ifndef always_inline

    47 #if (__GNUC__ < 3) || defined(__APPLE__)

    48 #define always_inline inline

    49 #else

    50 #define always_inline __attribute__ (( always_inline )) __inline__

    51 #ifdef __OPTIMIZE__

    52 #define inline always_inline

    53 #endif

    54 #endif

    55 #else

    56 #define inline always_inline

    57 #endif

    58 

    59 #ifdef __i386__

    60 #define REGPARM __attribute((regparm(3)))

    61 #else

    62 #define REGPARM

    63 #endif

    64 

    65 #define qemu_printf printf

    66 

    67 #if defined (__GNUC__) && defined (__GNUC_MINOR__)

    68 # define QEMU_GNUC_PREREQ(maj, min) \

    69          ((__GNUC__ << 16) + __GNUC_MINOR__ >= ((maj) << 16) + (min))

    70 #else

    71 # define QEMU_GNUC_PREREQ(maj, min) 0

    72 #endif

    73 

    74 void *qemu_memalign(size_t alignment, size_t size);

    75 void *qemu_vmalloc(size_t size);

    76 void qemu_vfree(void *ptr);

    77 

    78 int qemu_create_pidfile(const char *filename);

    79 

    80 #ifdef _WIN32

    81 int ffs(int i);

    82 

    83 typedef struct {

    84     long tv_sec;

    85     long tv_usec;

    86 } qemu_timeval;

    87 int qemu_gettimeofday(qemu_timeval *tp);

    88 #include <time.h>

    89 struct tm *localtime_r(const time_t *timep, struct tm *result);

    90 struct tm *gmtime_r(const time_t *timep, struct tm *result);

    91 #else

    92 typedef struct timeval qemu_timeval;

    93 #define qemu_gettimeofday(tp) gettimeofday(tp, NULL);

    94 #endif /* !_WIN32 */

    95 

    96 #endif