1 #ifndef FIO_OS_WINDOWS_H
2 #define FIO_OS_WINDOWS_H
3
4 #define FIO_OS os_windows
5
6 #include <sys/types.h>
7 #include <sys/shm.h>
8 #include <sys/stat.h>
9 #include <errno.h>
10 #include <winsock2.h>
11 #include <windows.h>
12 #include <psapi.h>
13 #include <stdlib.h>
14
15 #include "../smalloc.h"
16 #include "../file.h"
17 #include "../log.h"
18 #include "../lib/hweight.h"
19 #include "../oslib/strcasestr.h"
20
21 #include "windows/posix.h"
22
23 /* Cygwin doesn't define rand_r if C99 or newer is being used */
24 #if defined(WIN32) && !defined(rand_r)
25 int rand_r(unsigned *);
26 #endif
27
28 #ifndef PTHREAD_STACK_MIN
29 #define PTHREAD_STACK_MIN 65535
30 #endif
31
32 #define FIO_HAVE_ODIRECT
33 #define FIO_HAVE_CPU_AFFINITY
34 #define FIO_HAVE_CHARDEV_SIZE
35 #define FIO_HAVE_GETTID
36 #define FIO_USE_GENERIC_RAND
37
38 #define FIO_PREFERRED_ENGINE "windowsaio"
39 #define FIO_PREFERRED_CLOCK_SOURCE CS_CGETTIME
40 #define FIO_OS_PATH_SEPARATOR "\\"
41
42 #define FIO_MAX_CPUS MAXIMUM_PROCESSORS
43
44 #define OS_MAP_ANON MAP_ANON
45
46 #define fio_swap16(x) _byteswap_ushort(x)
47 #define fio_swap32(x) _byteswap_ulong(x)
48 #define fio_swap64(x) _byteswap_uint64(x)
49
50 typedef DWORD_PTR os_cpu_mask_t;
51
52 #define _SC_PAGESIZE 0x1
53 #define _SC_NPROCESSORS_ONLN 0x2
54 #define _SC_PHYS_PAGES 0x4
55
56 #define SA_RESTART 0
57 #define SIGPIPE 0
58
59 /*
60 * Windows doesn't have O_DIRECT or O_SYNC, so define them
61 * here so we can reject them at runtime when using the _open
62 * interface (windowsaio uses CreateFile)
63 */
64 #define O_DIRECT 0x1000000
65 #define O_SYNC 0x2000000
66
67 /* Windows doesn't support madvise, so any values will work */
68 #define POSIX_MADV_DONTNEED 0
69 #define POSIX_MADV_SEQUENTIAL 0
70 #define POSIX_MADV_RANDOM 0
71
72 #define F_SETFL 0x1
73 #define F_GETFL 0x2
74 #define O_NONBLOCK FIONBIO
75
76 /* Winsock doesn't support MSG_WAIT */
77 #define OS_MSG_DONTWAIT 0
78
79 #define POLLOUT 1
80 #define POLLIN 2
81 #define POLLERR 0
82 #define POLLHUP 1
83
84 #define SIGCONT 0
85 #define SIGUSR1 1
86 #define SIGUSR2 2
87
88 typedef int sigset_t;
89 typedef int siginfo_t;
90
91 struct sigaction
92 {
93 void (*sa_handler)(int);
94 sigset_t sa_mask;
95 int sa_flags;
96 void* (*sa_sigaction)(int, siginfo_t *, void*);
97 };
98
99 long sysconf(int name);
100
101 int kill(pid_t pid, int sig);
102 pid_t setsid(void);
103 int setgid(gid_t gid);
104 int setuid(uid_t uid);
105 int nice(int incr);
106 int sigaction(int sig, const struct sigaction *act,
107 struct sigaction *oact);
108 int fsync(int fildes);
109 int fork(void);
110 int fcntl(int fildes, int cmd, ...);
111 int fdatasync(int fildes);
112 int lstat(const char * path, struct stat * buf);
113 uid_t geteuid(void);
114 char* ctime_r(const time_t *t, char *buf);
115 int nanosleep(const struct timespec *rqtp, struct timespec *rmtp);
116 ssize_t pread(int fildes, void *buf, size_t nbyte, off_t offset);
117 ssize_t pwrite(int fildes, const void *buf, size_t nbyte,
118 off_t offset);
119 extern void td_fill_rand_seeds(struct thread_data *);
120
blockdev_size(struct fio_file * f,unsigned long long * bytes)121 static inline int blockdev_size(struct fio_file *f, unsigned long long *bytes)
122 {
123 int rc = 0;
124 HANDLE hFile;
125 GET_LENGTH_INFORMATION info;
126 DWORD outBytes;
127
128 if (f->hFile == NULL) {
129 hFile = CreateFile(f->file_name, GENERIC_READ, FILE_SHARE_READ | FILE_SHARE_WRITE,
130 NULL, OPEN_EXISTING, 0, NULL);
131 } else {
132 hFile = f->hFile;
133 }
134
135 if (DeviceIoControl(hFile, IOCTL_DISK_GET_LENGTH_INFO, NULL, 0, &info, sizeof(info), &outBytes, NULL))
136 *bytes = info.Length.QuadPart;
137 else
138 rc = EIO;
139
140 /* If we were passed a POSIX fd,
141 * close the HANDLE we created via CreateFile */
142 if (hFile != INVALID_HANDLE_VALUE && f->hFile == NULL)
143 CloseHandle(hFile);
144
145 return rc;
146 }
147
chardev_size(struct fio_file * f,unsigned long long * bytes)148 static inline int chardev_size(struct fio_file *f, unsigned long long *bytes)
149 {
150 return blockdev_size(f, bytes);
151 }
152
blockdev_invalidate_cache(struct fio_file * f)153 static inline int blockdev_invalidate_cache(struct fio_file *f)
154 {
155 return ENOTSUP;
156 }
157
os_phys_mem(void)158 static inline unsigned long long os_phys_mem(void)
159 {
160 long pagesize, pages;
161
162 pagesize = sysconf(_SC_PAGESIZE);
163 pages = sysconf(_SC_PHYS_PAGES);
164 if (pages == -1 || pagesize == -1)
165 return 0;
166
167 return (unsigned long long) pages * (unsigned long long) pagesize;
168 }
169
gettid(void)170 static inline int gettid(void)
171 {
172 return GetCurrentThreadId();
173 }
174
fio_setaffinity(int pid,os_cpu_mask_t cpumask)175 static inline int fio_setaffinity(int pid, os_cpu_mask_t cpumask)
176 {
177 HANDLE h;
178 BOOL bSuccess = FALSE;
179
180 h = OpenThread(THREAD_QUERY_INFORMATION | THREAD_SET_INFORMATION, TRUE, pid);
181 if (h != NULL) {
182 bSuccess = SetThreadAffinityMask(h, cpumask);
183 if (!bSuccess)
184 log_err("fio_setaffinity failed: failed to set thread affinity (pid %d, mask %.16llx)\n", pid, cpumask);
185
186 CloseHandle(h);
187 } else {
188 log_err("fio_setaffinity failed: failed to get handle for pid %d\n", pid);
189 }
190
191 return (bSuccess)? 0 : -1;
192 }
193
fio_getaffinity(int pid,os_cpu_mask_t * mask)194 static inline int fio_getaffinity(int pid, os_cpu_mask_t *mask)
195 {
196 os_cpu_mask_t systemMask;
197
198 HANDLE h = OpenProcess(PROCESS_QUERY_INFORMATION, TRUE, pid);
199
200 if (h != NULL) {
201 GetProcessAffinityMask(h, mask, &systemMask);
202 CloseHandle(h);
203 } else {
204 log_err("fio_getaffinity failed: failed to get handle for pid %d\n", pid);
205 return -1;
206 }
207
208 return 0;
209 }
210
fio_cpu_clear(os_cpu_mask_t * mask,int cpu)211 static inline void fio_cpu_clear(os_cpu_mask_t *mask, int cpu)
212 {
213 *mask ^= 1 << (cpu-1);
214 }
215
fio_cpu_set(os_cpu_mask_t * mask,int cpu)216 static inline void fio_cpu_set(os_cpu_mask_t *mask, int cpu)
217 {
218 *mask |= 1 << cpu;
219 }
220
fio_cpu_isset(os_cpu_mask_t * mask,int cpu)221 static inline int fio_cpu_isset(os_cpu_mask_t *mask, int cpu)
222 {
223 return (*mask & (1U << cpu));
224 }
225
fio_cpu_count(os_cpu_mask_t * mask)226 static inline int fio_cpu_count(os_cpu_mask_t *mask)
227 {
228 return hweight64(*mask);
229 }
230
fio_cpuset_init(os_cpu_mask_t * mask)231 static inline int fio_cpuset_init(os_cpu_mask_t *mask)
232 {
233 *mask = 0;
234 return 0;
235 }
236
fio_cpuset_exit(os_cpu_mask_t * mask)237 static inline int fio_cpuset_exit(os_cpu_mask_t *mask)
238 {
239 return 0;
240 }
241
init_random_state(struct thread_data * td,unsigned long * rand_seeds,int size)242 static inline int init_random_state(struct thread_data *td, unsigned long *rand_seeds, int size)
243 {
244 HCRYPTPROV hCryptProv;
245
246 if (!CryptAcquireContext(&hCryptProv, NULL, NULL, PROV_RSA_FULL, CRYPT_VERIFYCONTEXT))
247 {
248 errno = GetLastError();
249 log_err("CryptAcquireContext() failed: error %d\n", errno);
250 return 1;
251 }
252
253 if (!CryptGenRandom(hCryptProv, size, (BYTE*)rand_seeds)) {
254 errno = GetLastError();
255 log_err("CryptGenRandom() failed, error %d\n", errno);
256 CryptReleaseContext(hCryptProv, 0);
257 return 1;
258 }
259
260 CryptReleaseContext(hCryptProv, 0);
261 td_fill_rand_seeds(td);
262 return 0;
263 }
264
265
fio_set_sched_idle(void)266 static inline int fio_set_sched_idle(void)
267 {
268 /* SetThreadPriority returns nonzero for success */
269 return (SetThreadPriority(GetCurrentThread(), THREAD_PRIORITY_IDLE))? 0 : -1;
270 }
271
272
273 #endif /* FIO_OS_WINDOWS_H */
274