1 #ifndef FIO_OS_WINDOWS_H
2 #define FIO_OS_WINDOWS_H
4 #define FIO_OS os_windows
15 #include "../smalloc.h"
19 #include "windows/posix.h"
21 #ifndef PTHREAD_STACK_MIN
22 #define PTHREAD_STACK_MIN 65535
25 #define FIO_HAVE_ODIRECT
26 #define FIO_HAVE_CPU_AFFINITY
27 #define FIO_HAVE_CHARDEV_SIZE
28 #define FIO_HAVE_GETTID
29 #define FIO_USE_GENERIC_RAND
31 #define FIO_PREFERRED_ENGINE "windowsaio"
32 #define FIO_PREFERRED_CLOCK_SOURCE CS_CGETTIME
33 #define FIO_OS_PATH_SEPARATOR "\\"
35 #define FIO_MAX_CPUS MAXIMUM_PROCESSORS
37 #define OS_MAP_ANON MAP_ANON
39 #define fio_swap16(x) _byteswap_ushort(x)
40 #define fio_swap32(x) _byteswap_ulong(x)
41 #define fio_swap64(x) _byteswap_uint64(x)
43 typedef DWORD_PTR os_cpu_mask_t;
45 #define _SC_PAGESIZE 0x1
46 #define _SC_NPROCESSORS_ONLN 0x2
47 #define _SC_PHYS_PAGES 0x4
53 * Windows doesn't have O_DIRECT or O_SYNC, so define them
54 * here so we can reject them at runtime when using the _open
55 * interface (windowsaio uses CreateFile)
57 #define O_DIRECT 0x1000000
58 #define O_SYNC 0x2000000
60 /* Windows doesn't support madvise, so any values will work */
61 #define POSIX_MADV_DONTNEED 0
62 #define POSIX_MADV_SEQUENTIAL 0
63 #define POSIX_MADV_RANDOM 0
67 #define O_NONBLOCK FIONBIO
69 /* Winsock doesn't support MSG_WAIT */
70 #define OS_MSG_DONTWAIT 0
82 typedef int siginfo_t;
86 void (*sa_handler)(int);
89 void* (*sa_sigaction)(int, siginfo_t *, void*);
92 long sysconf(int name);
94 int kill(pid_t pid, int sig);
96 int setgid(gid_t gid);
97 int setuid(uid_t uid);
99 int sigaction(int sig, const struct sigaction *act,
100 struct sigaction *oact);
101 int fsync(int fildes);
103 int fcntl(int fildes, int cmd, ...);
104 int fdatasync(int fildes);
105 int lstat(const char * path, struct stat * buf);
107 int nanosleep(const struct timespec *rqtp, struct timespec *rmtp);
108 ssize_t pread(int fildes, void *buf, size_t nbyte, off_t offset);
109 ssize_t pwrite(int fildes, const void *buf, size_t nbyte,
111 extern void td_fill_rand_seeds(struct thread_data *);
113 static inline int blockdev_size(struct fio_file *f, unsigned long long *bytes)
117 GET_LENGTH_INFORMATION info;
120 if (f->hFile == NULL) {
121 hFile = CreateFile(f->file_name, GENERIC_READ, FILE_SHARE_READ | FILE_SHARE_WRITE,
122 NULL, OPEN_EXISTING, 0, NULL);
127 if (DeviceIoControl(hFile, IOCTL_DISK_GET_LENGTH_INFO, NULL, 0, &info, sizeof(info), &outBytes, NULL))
128 *bytes = info.Length.QuadPart;
132 /* If we were passed a POSIX fd,
133 * close the HANDLE we created via CreateFile */
134 if (hFile != INVALID_HANDLE_VALUE && f->hFile == NULL)
140 static inline int chardev_size(struct fio_file *f, unsigned long long *bytes)
142 return blockdev_size(f, bytes);
145 static inline int blockdev_invalidate_cache(struct fio_file *f)
147 /* There's no way to invalidate the cache in Windows
148 * so just pretend to succeed */
152 static inline unsigned long long os_phys_mem(void)
154 long pagesize, pages;
156 pagesize = sysconf(_SC_PAGESIZE);
157 pages = sysconf(_SC_PHYS_PAGES);
158 if (pages == -1 || pagesize == -1)
161 return (unsigned long long) pages * (unsigned long long) pagesize;
164 static inline void os_get_tmpdir(char *path, int len)
166 GetTempPath(len, path);
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 void 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);
207 static inline void fio_cpu_clear(os_cpu_mask_t *mask, int cpu)
209 *mask ^= 1 << (cpu-1);
212 static inline void fio_cpu_set(os_cpu_mask_t *mask, int cpu)
217 static inline int fio_cpuset_init(os_cpu_mask_t *mask)
223 static inline int fio_cpuset_exit(os_cpu_mask_t *mask)
228 static inline int init_random_state(struct thread_data *td, unsigned long *rand_seeds, int size)
230 HCRYPTPROV hCryptProv;
232 if (!CryptAcquireContext(&hCryptProv, NULL, NULL, PROV_RSA_FULL, CRYPT_VERIFYCONTEXT))
234 errno = GetLastError();
235 log_err("CryptAcquireContext() failed: error %d\n", errno);
239 if (!CryptGenRandom(hCryptProv, size, (BYTE*)rand_seeds)) {
240 errno = GetLastError();
241 log_err("CryptGenRandom() failed, error %d\n", errno);
242 CryptReleaseContext(hCryptProv, 0);
246 CryptReleaseContext(hCryptProv, 0);
247 td_fill_rand_seeds(td);
252 static inline int fio_set_sched_idle(void)
254 /* SetThreadPriority returns nonzero for success */
255 return (SetThreadPriority(GetCurrentThread(), THREAD_PRIORITY_IDLE))? 0 : -1;
259 #endif /* FIO_OS_WINDOWS_H */