summaryrefslogtreecommitdiffstats
path: root/osdep.h
blob: 87f024b127ce2a75c1d315dff89c69ca0206cb81 (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
#ifndef QEMU_OSDEP_H
#define QEMU_OSDEP_H

#include <stdarg.h>
#ifdef __OpenBSD__
#include <sys/types.h>
#include <sys/signal.h>
#endif

#ifndef glue
#define xglue(x, y) x ## y
#define glue(x, y) xglue(x, y)
#define stringify(s)	tostring(s)
#define tostring(s)	#s
#endif

#ifndef likely
#if __GNUC__ < 3
#define __builtin_expect(x, n) (x)
#endif

#define likely(x)   __builtin_expect(!!(x), 1)
#define unlikely(x)   __builtin_expect(!!(x), 0)
#endif

#ifndef offsetof
#define offsetof(TYPE, MEMBER) ((size_t) &((TYPE *) 0)->MEMBER)
#endif
#ifndef container_of
#define container_of(ptr, type, member) ({                      \
        const typeof(((type *) 0)->member) *__mptr = (ptr);     \
        (type *) ((char *) __mptr - offsetof(type, member));})
#endif

#ifndef MIN
#define MIN(a, b) (((a) < (b)) ? (a) : (b))
#endif
#ifndef MAX
#define MAX(a, b) (((a) > (b)) ? (a) : (b))
#endif

#ifndef ARRAY_SIZE
#define ARRAY_SIZE(x) (sizeof(x) / sizeof((x)[0]))
#endif

#ifndef always_inline
#if (__GNUC__ < 3) || defined(__APPLE__)
#define always_inline inline
#else
#define always_inline __attribute__ (( always_inline )) __inline__
#define inline always_inline
#endif
#else
#define inline always_inline
#endif

#ifdef __i386__
#define REGPARM __attribute((regparm(3)))
#else
#define REGPARM
#endif

#define qemu_printf printf

#if defined (__GNUC__) && defined (__GNUC_MINOR_)
# define QEMU_GNUC_PREREQ(maj, min) \
         ((__GNUC__ << 16) + __GNUC_MINOR__ >= ((maj) << 16) + (min))
#else
# define QEMU_GNUC_PREREQ(maj, min) 0
#endif

void *qemu_memalign(size_t alignment, size_t size);
void *qemu_vmalloc(size_t size);
void qemu_vfree(void *ptr);

int qemu_create_pidfile(const char *filename);

#ifdef _WIN32
int ffs(int i);

typedef struct {
    long tv_sec;
    long tv_usec;
} qemu_timeval;
int qemu_gettimeofday(qemu_timeval *tp);
#else
typedef struct timeval qemu_timeval;
#define qemu_gettimeofday(tp) gettimeofday(tp, NULL);
#endif /* !_WIN32 */

#endif
OpenPOWER on IntegriCloud