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 "../lib/strcasestr.h"
21 #include "windows/posix.h"
23 #ifndef PTHREAD_STACK_MIN
24 #define PTHREAD_STACK_MIN 65535
27 #define FIO_HAVE_ODIRECT
28 #define FIO_HAVE_CPU_AFFINITY
29 #define FIO_HAVE_CHARDEV_SIZE
30 #define FIO_HAVE_GETTID
31 #define FIO_USE_GENERIC_RAND
33 #define FIO_PREFERRED_ENGINE "windowsaio"
34 #define FIO_PREFERRED_CLOCK_SOURCE CS_CGETTIME
35 #define FIO_OS_PATH_SEPARATOR "\\"
37 #define FIO_MAX_CPUS MAXIMUM_PROCESSORS
39 #define OS_MAP_ANON MAP_ANON
41 #define fio_swap16(x) _byteswap_ushort(x)
42 #define fio_swap32(x) _byteswap_ulong(x)
43 #define fio_swap64(x) _byteswap_uint64(x)
45 typedef DWORD_PTR os_cpu_mask_t;
47 #define _SC_PAGESIZE 0x1
48 #define _SC_NPROCESSORS_ONLN 0x2
49 #define _SC_PHYS_PAGES 0x4
55 * Windows doesn't have O_DIRECT or O_SYNC, so define them
56 * here so we can reject them at runtime when using the _open
57 * interface (windowsaio uses CreateFile)
59 #define O_DIRECT 0x1000000
60 #define O_SYNC 0x2000000
62 /* Windows doesn't support madvise, so any values will work */
63 #define POSIX_MADV_DONTNEED 0
64 #define POSIX_MADV_SEQUENTIAL 0
65 #define POSIX_MADV_RANDOM 0
69 #define O_NONBLOCK FIONBIO
71 /* Winsock doesn't support MSG_WAIT */
72 #define OS_MSG_DONTWAIT 0
84 typedef int siginfo_t;
88 void (*sa_handler)(int);
91 void* (*sa_sigaction)(int, siginfo_t *, void*);
94 long sysconf(int name);
96 int kill(pid_t pid, int sig);
98 int setgid(gid_t gid);
99 int setuid(uid_t uid);
101 int sigaction(int sig, const struct sigaction *act,
102 struct sigaction *oact);
103 int fsync(int fildes);
105 int fcntl(int fildes, int cmd, ...);
106 int fdatasync(int fildes);
107 int lstat(const char * path, struct stat * buf);
109 char* ctime_r(const time_t *t, char *buf);
110 int nanosleep(const struct timespec *rqtp, struct timespec *rmtp);
111 ssize_t pread(int fildes, void *buf, size_t nbyte, off_t offset);
112 ssize_t pwrite(int fildes, const void *buf, size_t nbyte,
114 extern void td_fill_rand_seeds(struct thread_data *);
116 static inline int blockdev_size(struct fio_file *f, unsigned long long *bytes)
120 GET_LENGTH_INFORMATION info;
123 if (f->hFile == NULL) {
124 hFile = CreateFile(f->file_name, GENERIC_READ, FILE_SHARE_READ | FILE_SHARE_WRITE,
125 NULL, OPEN_EXISTING, 0, NULL);
130 if (DeviceIoControl(hFile, IOCTL_DISK_GET_LENGTH_INFO, NULL, 0, &info, sizeof(info), &outBytes, NULL))
131 *bytes = info.Length.QuadPart;
135 /* If we were passed a POSIX fd,
136 * close the HANDLE we created via CreateFile */
137 if (hFile != INVALID_HANDLE_VALUE && f->hFile == NULL)
143 static inline int chardev_size(struct fio_file *f, unsigned long long *bytes)
145 return blockdev_size(f, bytes);
148 static inline int blockdev_invalidate_cache(struct fio_file *f)
150 /* There's no way to invalidate the cache in Windows
151 * so just pretend to succeed */
155 static inline unsigned long long os_phys_mem(void)
157 long pagesize, pages;
159 pagesize = sysconf(_SC_PAGESIZE);
160 pages = sysconf(_SC_PHYS_PAGES);
161 if (pages == -1 || pagesize == -1)
164 return (unsigned long long) pages * (unsigned long long) pagesize;
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_cpu_isset(os_cpu_mask_t *mask, int cpu)
217 return (*mask & (1U << cpu));
220 static inline int fio_cpu_count(os_cpu_mask_t *mask)
222 return hweight64(*mask);
225 static inline int fio_cpuset_init(os_cpu_mask_t *mask)
231 static inline int fio_cpuset_exit(os_cpu_mask_t *mask)
236 static inline int init_random_state(struct thread_data *td, unsigned long *rand_seeds, int size)
238 HCRYPTPROV hCryptProv;
240 if (!CryptAcquireContext(&hCryptProv, NULL, NULL, PROV_RSA_FULL, CRYPT_VERIFYCONTEXT))
242 errno = GetLastError();
243 log_err("CryptAcquireContext() failed: error %d\n", errno);
247 if (!CryptGenRandom(hCryptProv, size, (BYTE*)rand_seeds)) {
248 errno = GetLastError();
249 log_err("CryptGenRandom() failed, error %d\n", errno);
250 CryptReleaseContext(hCryptProv, 0);
254 CryptReleaseContext(hCryptProv, 0);
255 td_fill_rand_seeds(td);
260 static inline int fio_set_sched_idle(void)
262 /* SetThreadPriority returns nonzero for success */
263 return (SetThreadPriority(GetCurrentThread(), THREAD_PRIORITY_IDLE))? 0 : -1;
267 #endif /* FIO_OS_WINDOWS_H */