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"
20 #include "windows/posix.h"
22 #ifndef PTHREAD_STACK_MIN
23 #define PTHREAD_STACK_MIN 65535
26 #define FIO_HAVE_ODIRECT
27 #define FIO_HAVE_CPU_AFFINITY
28 #define FIO_HAVE_CHARDEV_SIZE
29 #define FIO_HAVE_GETTID
30 #define FIO_USE_GENERIC_RAND
32 #define FIO_PREFERRED_ENGINE "windowsaio"
33 #define FIO_PREFERRED_CLOCK_SOURCE CS_CGETTIME
34 #define FIO_OS_PATH_SEPARATOR "\\"
36 #define FIO_MAX_CPUS MAXIMUM_PROCESSORS
38 #define OS_MAP_ANON MAP_ANON
40 #define fio_swap16(x) _byteswap_ushort(x)
41 #define fio_swap32(x) _byteswap_ulong(x)
42 #define fio_swap64(x) _byteswap_uint64(x)
44 typedef DWORD_PTR os_cpu_mask_t;
46 #define _SC_PAGESIZE 0x1
47 #define _SC_NPROCESSORS_ONLN 0x2
48 #define _SC_PHYS_PAGES 0x4
54 * Windows doesn't have O_DIRECT or O_SYNC, so define them
55 * here so we can reject them at runtime when using the _open
56 * interface (windowsaio uses CreateFile)
58 #define O_DIRECT 0x1000000
59 #define O_SYNC 0x2000000
61 /* Windows doesn't support madvise, so any values will work */
62 #define POSIX_MADV_DONTNEED 0
63 #define POSIX_MADV_SEQUENTIAL 0
64 #define POSIX_MADV_RANDOM 0
68 #define O_NONBLOCK FIONBIO
70 /* Winsock doesn't support MSG_WAIT */
71 #define OS_MSG_DONTWAIT 0
83 typedef int siginfo_t;
87 void (*sa_handler)(int);
90 void* (*sa_sigaction)(int, siginfo_t *, void*);
93 long sysconf(int name);
95 int kill(pid_t pid, int sig);
97 int setgid(gid_t gid);
98 int setuid(uid_t uid);
100 int sigaction(int sig, const struct sigaction *act,
101 struct sigaction *oact);
102 int fsync(int fildes);
104 int fcntl(int fildes, int cmd, ...);
105 int fdatasync(int fildes);
106 int lstat(const char * path, struct stat * buf);
108 int nanosleep(const struct timespec *rqtp, struct timespec *rmtp);
109 ssize_t pread(int fildes, void *buf, size_t nbyte, off_t offset);
110 ssize_t pwrite(int fildes, const void *buf, size_t nbyte,
112 extern void td_fill_rand_seeds(struct thread_data *);
114 static inline int blockdev_size(struct fio_file *f, unsigned long long *bytes)
118 GET_LENGTH_INFORMATION info;
121 if (f->hFile == NULL) {
122 hFile = CreateFile(f->file_name, GENERIC_READ, FILE_SHARE_READ | FILE_SHARE_WRITE,
123 NULL, OPEN_EXISTING, 0, NULL);
128 if (DeviceIoControl(hFile, IOCTL_DISK_GET_LENGTH_INFO, NULL, 0, &info, sizeof(info), &outBytes, NULL))
129 *bytes = info.Length.QuadPart;
133 /* If we were passed a POSIX fd,
134 * close the HANDLE we created via CreateFile */
135 if (hFile != INVALID_HANDLE_VALUE && f->hFile == NULL)
141 static inline int chardev_size(struct fio_file *f, unsigned long long *bytes)
143 return blockdev_size(f, bytes);
146 static inline int blockdev_invalidate_cache(struct fio_file *f)
148 /* There's no way to invalidate the cache in Windows
149 * so just pretend to succeed */
153 static inline unsigned long long os_phys_mem(void)
155 long pagesize, pages;
157 pagesize = sysconf(_SC_PAGESIZE);
158 pages = sysconf(_SC_PHYS_PAGES);
159 if (pages == -1 || pagesize == -1)
162 return (unsigned long long) pages * (unsigned long long) pagesize;
165 static inline int gettid(void)
167 return GetCurrentThreadId();
170 static inline int fio_setaffinity(int pid, os_cpu_mask_t cpumask)
173 BOOL bSuccess = FALSE;
175 h = OpenThread(THREAD_QUERY_INFORMATION | THREAD_SET_INFORMATION, TRUE, pid);
177 bSuccess = SetThreadAffinityMask(h, cpumask);
179 log_err("fio_setaffinity failed: failed to set thread affinity (pid %d, mask %.16llx)\n", pid, cpumask);
183 log_err("fio_setaffinity failed: failed to get handle for pid %d\n", pid);
186 return (bSuccess)? 0 : -1;
189 static inline void fio_getaffinity(int pid, os_cpu_mask_t *mask)
191 os_cpu_mask_t systemMask;
193 HANDLE h = OpenProcess(PROCESS_QUERY_INFORMATION, TRUE, pid);
196 GetProcessAffinityMask(h, mask, &systemMask);
199 log_err("fio_getaffinity failed: failed to get handle for pid %d\n", pid);
203 static inline void fio_cpu_clear(os_cpu_mask_t *mask, int cpu)
205 *mask ^= 1 << (cpu-1);
208 static inline void fio_cpu_set(os_cpu_mask_t *mask, int cpu)
213 static inline int fio_cpu_isset(os_cpu_mask_t *mask, int cpu)
215 return (*mask & (1U << cpu));
218 static inline int fio_cpu_count(os_cpu_mask_t *mask)
220 return hweight64(*mask);
223 static inline int fio_cpuset_init(os_cpu_mask_t *mask)
229 static inline int fio_cpuset_exit(os_cpu_mask_t *mask)
234 static inline int init_random_state(struct thread_data *td, unsigned long *rand_seeds, int size)
236 HCRYPTPROV hCryptProv;
238 if (!CryptAcquireContext(&hCryptProv, NULL, NULL, PROV_RSA_FULL, CRYPT_VERIFYCONTEXT))
240 errno = GetLastError();
241 log_err("CryptAcquireContext() failed: error %d\n", errno);
245 if (!CryptGenRandom(hCryptProv, size, (BYTE*)rand_seeds)) {
246 errno = GetLastError();
247 log_err("CryptGenRandom() failed, error %d\n", errno);
248 CryptReleaseContext(hCryptProv, 0);
252 CryptReleaseContext(hCryptProv, 0);
253 td_fill_rand_seeds(td);
258 static inline int fio_set_sched_idle(void)
260 /* SetThreadPriority returns nonzero for success */
261 return (SetThreadPriority(GetCurrentThread(), THREAD_PRIORITY_IDLE))? 0 : -1;
265 #endif /* FIO_OS_WINDOWS_H */