1 #ifndef FIO_OS_WINDOWS_H
2 #define FIO_OS_WINDOWS_H
4 #define FIO_OS os_windows
14 #include "../smalloc.h"
18 #include "windows/posix.h"
20 #define FIO_HAVE_ODIRECT
21 #define FIO_HAVE_CPU_AFFINITY
22 #define FIO_HAVE_CHARDEV_SIZE
23 #define FIO_HAVE_GETTID
24 #define FIO_USE_GENERIC_RAND
26 #define FIO_PREFERRED_ENGINE "windowsaio"
27 #define FIO_PREFERRED_CLOCK_SOURCE CS_CGETTIME
28 #define FIO_OS_PATH_SEPARATOR "\\"
30 #define FIO_MAX_CPUS MAXIMUM_PROCESSORS
32 #define OS_MAP_ANON MAP_ANON
34 #define fio_swap16(x) _byteswap_ushort(x)
35 #define fio_swap32(x) _byteswap_ulong(x)
36 #define fio_swap64(x) _byteswap_uint64(x)
38 typedef DWORD_PTR os_cpu_mask_t;
40 #define CLOCK_REALTIME 1
41 #define CLOCK_MONOTONIC 2
43 #define _SC_PAGESIZE 0x1
44 #define _SC_NPROCESSORS_ONLN 0x2
45 #define _SC_PHYS_PAGES 0x4
51 * Windows doesn't have O_DIRECT or O_SYNC, so define them
52 * here so we can reject them at runtime when using the _open
53 * interface (windowsaio uses CreateFile)
55 #define O_DIRECT 0x1000000
56 #define O_SYNC 0x2000000
58 /* Windows doesn't support madvise, so any values will work */
59 #define POSIX_MADV_DONTNEED 0
60 #define POSIX_MADV_SEQUENTIAL 0
61 #define POSIX_MADV_RANDOM 0
65 #define O_NONBLOCK FIONBIO
67 /* Winsock doesn't support MSG_WAIT */
68 #define OS_MSG_DONTWAIT 0
80 typedef int siginfo_t;
84 void (*sa_handler)(int);
87 void* (*sa_sigaction)(int, siginfo_t *, void*);
90 long sysconf(int name);
92 int kill(pid_t pid, int sig);
94 int setgid(gid_t gid);
95 int setuid(uid_t uid);
97 int sigaction(int sig, const struct sigaction *act,
98 struct sigaction *oact);
99 int fsync(int fildes);
101 int fcntl(int fildes, int cmd, ...);
102 int fdatasync(int fildes);
103 int lstat(const char * path, struct stat * buf);
105 int nanosleep(const struct timespec *rqtp, struct timespec *rmtp);
106 ssize_t pread(int fildes, void *buf, size_t nbyte, off_t offset);
107 ssize_t pwrite(int fildes, const void *buf, size_t nbyte,
109 extern void td_fill_rand_seeds(struct thread_data *);
111 static inline int blockdev_size(struct fio_file *f, unsigned long long *bytes)
116 if (f->hFile == NULL) {
117 hFile = CreateFile(f->file_name, GENERIC_READ, FILE_SHARE_READ | FILE_SHARE_WRITE,
118 NULL, OPEN_EXISTING, 0, NULL);
123 GET_LENGTH_INFORMATION info;
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)
157 GetSystemInfo(&sysInfo);
158 addr = (uintptr_t)sysInfo.lpMaximumApplicationAddress;
159 return (unsigned long long)addr;
162 static inline void os_get_tmpdir(char *path, int len)
164 GetTempPath(len, path);
167 static inline int gettid(void)
169 return GetCurrentThreadId();
172 static inline int fio_setaffinity(int pid, os_cpu_mask_t cpumask)
175 BOOL bSuccess = FALSE;
177 h = OpenThread(THREAD_QUERY_INFORMATION | THREAD_SET_INFORMATION, TRUE, pid);
179 bSuccess = SetThreadAffinityMask(h, cpumask);
181 log_err("fio_setaffinity failed: failed to set thread affinity (pid %d, mask %.16llx)\n", pid, cpumask);
185 log_err("fio_setaffinity failed: failed to get handle for pid %d\n", pid);
188 return (bSuccess)? 0 : -1;
191 static inline void fio_getaffinity(int pid, os_cpu_mask_t *mask)
193 os_cpu_mask_t systemMask;
195 HANDLE h = OpenProcess(PROCESS_QUERY_INFORMATION, TRUE, pid);
198 GetProcessAffinityMask(h, mask, &systemMask);
201 log_err("fio_getaffinity failed: failed to get handle for pid %d\n", pid);
205 static inline void fio_cpu_clear(os_cpu_mask_t *mask, int cpu)
207 *mask ^= 1 << (cpu-1);
210 static inline void fio_cpu_set(os_cpu_mask_t *mask, int cpu)
215 static inline int fio_cpuset_init(os_cpu_mask_t *mask)
221 static inline int fio_cpuset_exit(os_cpu_mask_t *mask)
226 static inline int init_random_state(struct thread_data *td, unsigned long *rand_seeds, int size)
228 HCRYPTPROV hCryptProv;
230 if (!CryptAcquireContext(&hCryptProv, NULL, NULL, PROV_RSA_FULL, CRYPT_VERIFYCONTEXT))
232 errno = GetLastError();
233 log_err("CryptAcquireContext() failed: error %d\n", errno);
237 if (!CryptGenRandom(hCryptProv, size, (BYTE*)rand_seeds)) {
238 errno = GetLastError();
239 log_err("CryptGenRandom() failed, error %d\n", errno);
240 CryptReleaseContext(hCryptProv, 0);
244 CryptReleaseContext(hCryptProv, 0);
245 td_fill_rand_seeds(td);
250 static inline int fio_set_sched_idle(void)
252 /* SetThreadPriority returns nonzero for success */
253 return (SetThreadPriority(GetCurrentThread(), THREAD_PRIORITY_IDLE))? 0 : -1;
257 #endif /* FIO_OS_WINDOWS_H */