1 #ifndef FIO_OS_WINDOWS_H
2 #define FIO_OS_WINDOWS_H
4 #define FIO_OS os_windows
15 #include "../smalloc.h"
18 #include "../lib/hweight.h"
19 #include "../oslib/strcasestr.h"
21 #include "windows/posix.h"
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 *);
28 #ifndef PTHREAD_STACK_MIN
29 #define PTHREAD_STACK_MIN 65535
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
38 #define FIO_PREFERRED_ENGINE "windowsaio"
39 #define FIO_PREFERRED_CLOCK_SOURCE CS_CGETTIME
40 #define FIO_OS_PATH_SEPARATOR "\\"
42 #define FIO_MAX_CPUS MAXIMUM_PROCESSORS
44 #define OS_MAP_ANON MAP_ANON
46 #define fio_swap16(x) _byteswap_ushort(x)
47 #define fio_swap32(x) _byteswap_ulong(x)
48 #define fio_swap64(x) _byteswap_uint64(x)
50 typedef DWORD_PTR os_cpu_mask_t;
52 #define _SC_PAGESIZE 0x1
53 #define _SC_NPROCESSORS_ONLN 0x2
54 #define _SC_PHYS_PAGES 0x4
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)
64 #define O_DIRECT 0x1000000
65 #define O_SYNC 0x2000000
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
74 #define O_NONBLOCK FIONBIO
76 /* Winsock doesn't support MSG_WAIT */
77 #define OS_MSG_DONTWAIT 0
89 typedef int siginfo_t;
93 void (*sa_handler)(int);
96 void* (*sa_sigaction)(int, siginfo_t *, void*);
99 long sysconf(int name);
101 int kill(pid_t pid, int sig);
103 int setgid(gid_t gid);
104 int setuid(uid_t uid);
106 int sigaction(int sig, const struct sigaction *act,
107 struct sigaction *oact);
108 int fsync(int fildes);
110 int fcntl(int fildes, int cmd, ...);
111 int fdatasync(int fildes);
112 int lstat(const char * path, struct stat * buf);
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,
120 static inline int blockdev_size(struct fio_file *f, unsigned long long *bytes)
124 GET_LENGTH_INFORMATION info;
127 if (f->hFile == NULL) {
128 hFile = CreateFile(f->file_name, GENERIC_READ, FILE_SHARE_READ | FILE_SHARE_WRITE,
129 NULL, OPEN_EXISTING, 0, NULL);
134 if (DeviceIoControl(hFile, IOCTL_DISK_GET_LENGTH_INFO, NULL, 0, &info, sizeof(info), &outBytes, NULL))
135 *bytes = info.Length.QuadPart;
139 /* If we were passed a POSIX fd,
140 * close the HANDLE we created via CreateFile */
141 if (hFile != INVALID_HANDLE_VALUE && f->hFile == NULL)
147 static inline int chardev_size(struct fio_file *f, unsigned long long *bytes)
149 return blockdev_size(f, bytes);
152 static inline int blockdev_invalidate_cache(struct fio_file *f)
157 static inline unsigned long long os_phys_mem(void)
159 long pagesize, pages;
161 pagesize = sysconf(_SC_PAGESIZE);
162 pages = sysconf(_SC_PHYS_PAGES);
163 if (pages == -1 || pagesize == -1)
166 return (unsigned long long) pages * (unsigned long long) pagesize;
169 static inline int gettid(void)
171 return GetCurrentThreadId();
174 static inline int fio_setaffinity(int pid, os_cpu_mask_t cpumask)
177 BOOL bSuccess = FALSE;
179 h = OpenThread(THREAD_QUERY_INFORMATION | THREAD_SET_INFORMATION, TRUE, pid);
181 bSuccess = SetThreadAffinityMask(h, cpumask);
183 log_err("fio_setaffinity failed: failed to set thread affinity (pid %d, mask %.16llx)\n", pid, cpumask);
187 log_err("fio_setaffinity failed: failed to get handle for pid %d\n", pid);
190 return (bSuccess)? 0 : -1;
193 static inline int fio_getaffinity(int pid, os_cpu_mask_t *mask)
195 os_cpu_mask_t systemMask;
197 HANDLE h = OpenProcess(PROCESS_QUERY_INFORMATION, TRUE, pid);
200 GetProcessAffinityMask(h, mask, &systemMask);
203 log_err("fio_getaffinity failed: failed to get handle for pid %d\n", pid);
210 static inline void fio_cpu_clear(os_cpu_mask_t *mask, int cpu)
212 *mask ^= 1 << (cpu-1);
215 static inline void fio_cpu_set(os_cpu_mask_t *mask, int cpu)
220 static inline int fio_cpu_isset(os_cpu_mask_t *mask, int cpu)
222 return (*mask & (1U << cpu));
225 static inline int fio_cpu_count(os_cpu_mask_t *mask)
227 return hweight64(*mask);
230 static inline int fio_cpuset_init(os_cpu_mask_t *mask)
236 static inline int fio_cpuset_exit(os_cpu_mask_t *mask)
241 static inline int init_random_seeds(unsigned long *rand_seeds, int size)
243 HCRYPTPROV hCryptProv;
245 if (!CryptAcquireContext(&hCryptProv, NULL, NULL, PROV_RSA_FULL, CRYPT_VERIFYCONTEXT))
247 errno = GetLastError();
248 log_err("CryptAcquireContext() failed: error %d\n", errno);
252 if (!CryptGenRandom(hCryptProv, size, (BYTE*)rand_seeds)) {
253 errno = GetLastError();
254 log_err("CryptGenRandom() failed, error %d\n", errno);
255 CryptReleaseContext(hCryptProv, 0);
259 CryptReleaseContext(hCryptProv, 0);
264 static inline int fio_set_sched_idle(void)
266 /* SetThreadPriority returns nonzero for success */
267 return (SetThreadPriority(GetCurrentThread(), THREAD_PRIORITY_IDLE))? 0 : -1;
271 #endif /* FIO_OS_WINDOWS_H */