fio patch: Windows netio fixes
[fio.git] / os / os-mac.h
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1#ifndef FIO_OS_APPLE_H
2#define FIO_OS_APPLE_H
3
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4#define FIO_OS os_mac
5
2afd826b 6#include <errno.h>
7e8ad197 7#include <fcntl.h>
c64646f0 8#include <sys/disk.h>
2afd826b 9#include <sys/sysctl.h>
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10#include <sys/time.h>
11#include <unistd.h>
12#include <signal.h>
3dee087c 13#include <mach/mach_init.h>
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14#include <machine/endian.h>
15#include <libkern/OSByteOrder.h>
2afd826b 16
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17#include "../file.h"
18
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19#ifndef CLOCK_MONOTONIC
20#define CLOCK_MONOTONIC 1
21#endif
22
23#ifndef CLOCK_REALTIME
24#define CLOCK_REALTIME 1
25#endif
26
27#define FIO_HAVE_POSIXAIO
ecc314ba 28#define FIO_HAVE_CLOCK_MONOTONIC
53531370 29#define FIO_USE_GENERIC_RAND
93bcfd20 30#define FIO_USE_GENERIC_INIT_RANDOM_STATE
e8d588e4 31#define FIO_HAVE_GETTID
b42ffd19 32#define FIO_HAVE_CHARDEV_SIZE
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33
34#define OS_MAP_ANON MAP_ANON
35
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36#if defined(__LITTLE_ENDIAN__)
37#define FIO_LITTLE_ENDIAN
38#elif defined(__BIG_ENDIAN__)
39#define FIO_BIG_ENDIAN
40#else
41#error "Undefined byte order"
42#endif
43
44#define fio_swap16(x) OSSwapInt16(x)
45#define fio_swap32(x) OSSwapInt32(x)
46#define fio_swap64(x) OSSwapInt64(x)
47
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48/*
49 * OSX has a pitifully small shared memory segment by default,
50 * so default to a lower number of max jobs supported
51 */
52#define FIO_MAX_JOBS 128
53
331539ac 54typedef off_t off64_t;
2afd826b 55
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56/* OS X as of 10.6 doesn't have the timer_* functions.
57 * Emulate the functionality using setitimer and sigaction here
58 */
59
60#define MAX_TIMERS 64
61
62typedef unsigned int clockid_t;
63typedef unsigned int timer_t;
64
65struct itimerspec {
66 struct timespec it_value;
67 struct timespec it_interval;
68};
69
70static struct sigevent fio_timers[MAX_TIMERS];
71static unsigned int num_timers = 0;
72
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73static void sig_alrm(int signum)
74{
75 union sigval sv;
76
77 for (int i = 0; i < num_timers; i++) {
78 if (fio_timers[i].sigev_notify_function == NULL)
79 continue;
80
81 if (fio_timers[i].sigev_notify == SIGEV_THREAD)
82 fio_timers[i].sigev_notify_function(sv);
83 else if (fio_timers[i].sigev_notify == SIGEV_SIGNAL)
84 kill(getpid(), fio_timers[i].sigev_signo);
85 }
86}
87
88static inline int timer_settime(timer_t timerid, int flags,
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89 const struct itimerspec *value,
90 struct itimerspec *ovalue)
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91{
92 struct sigaction sa;
93 struct itimerval tv;
94 struct itimerval tv_out;
95 int rc;
96
97 tv.it_interval.tv_sec = value->it_interval.tv_sec;
98 tv.it_interval.tv_usec = value->it_interval.tv_nsec / 1000;
99
100 tv.it_value.tv_sec = value->it_value.tv_sec;
101 tv.it_value.tv_usec = value->it_value.tv_nsec / 1000;
102
103 sa.sa_handler = sig_alrm;
104 sigemptyset(&sa.sa_mask);
105 sa.sa_flags = 0;
106
107 rc = sigaction(SIGALRM, &sa, NULL);
108
109 if (!rc)
110 rc = setitimer(ITIMER_REAL, &tv, &tv_out);
111
112 if (!rc && ovalue != NULL) {
113 ovalue->it_interval.tv_sec = tv_out.it_interval.tv_sec;
114 ovalue->it_interval.tv_nsec = tv_out.it_interval.tv_usec * 1000;
115 ovalue->it_value.tv_sec = tv_out.it_value.tv_sec;
116 ovalue->it_value.tv_nsec = tv_out.it_value.tv_usec * 1000;
117 }
118
119 return rc;
120}
121
122static inline int timer_delete(timer_t timer)
123{
124 return 0;
125}
126
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127#define FIO_OS_DIRECTIO
128static inline int fio_set_odirect(int fd)
129{
130 if (fcntl(fd, F_NOCACHE, 1) == -1)
131 return errno;
132 return 0;
133}
134
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135static inline int blockdev_size(struct fio_file *f, unsigned long long *bytes)
136{
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137 uint32_t block_size;
138 uint64_t block_count;
139
140 if (ioctl(f->fd, DKIOCGETBLOCKCOUNT, &block_count) == -1)
c64646f0 141 return errno;
79d73100 142 if (ioctl(f->fd, DKIOCGETBLOCKSIZE, &block_size) == -1)
c64646f0 143 return errno;
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144
145 *bytes = block_size;
146 *bytes *= block_count;
147 return 0;
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148}
149
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150static inline int chardev_size(struct fio_file *f, unsigned long long *bytes)
151{
152 /*
153 * Could be a raw block device, this is better than just assuming
154 * we can't get the size at all.
155 */
156 if (!blockdev_size(f, bytes))
157 return 0;
158
159 *bytes = -1ULL;
160 return 0;
161}
162
9b836561 163static inline int blockdev_invalidate_cache(struct fio_file *f)
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164{
165 return EINVAL;
166}
167
168static inline unsigned long long os_phys_mem(void)
169{
170 int mib[2] = { CTL_HW, HW_PHYSMEM };
171 unsigned long long mem;
172 size_t len = sizeof(mem);
173
174 sysctl(mib, 2, &mem, &len, NULL, 0);
175 return mem;
176}
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177
178static inline int gettid(void)
179{
180 return mach_thread_self();
181}
2afd826b 182#endif