1 #ifndef FIO_OS_WINDOWS_H
2 #define FIO_OS_WINDOWS_H
4 #define FIO_OS os_windows
15 #include "../smalloc.h"
19 #include "../lib/hweight.h"
20 #include "../oslib/strcasestr.h"
21 #include "../lib/types.h"
23 #include "windows/posix.h"
25 /* MinGW won't declare rand_r unless _POSIX is defined */
26 #if defined(WIN32) && !defined(rand_r)
27 int rand_r(unsigned *);
30 #ifndef PTHREAD_STACK_MIN
31 #define PTHREAD_STACK_MIN 65535
34 #define FIO_HAVE_ODIRECT
35 #define FIO_HAVE_CPU_AFFINITY
36 #define FIO_HAVE_CHARDEV_SIZE
37 #define FIO_HAVE_GETTID
38 #define FIO_USE_GENERIC_RAND
40 #define FIO_PREFERRED_ENGINE "windowsaio"
41 #define FIO_PREFERRED_CLOCK_SOURCE CS_CGETTIME
42 #define FIO_OS_PATH_SEPARATOR '\\'
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 #define _SC_PAGESIZE 0x1
51 #define _SC_NPROCESSORS_ONLN 0x2
52 #define _SC_PHYS_PAGES 0x4
58 * Windows doesn't have O_DIRECT or O_SYNC, so define them
59 * here so we can reject them at runtime when using the _open
60 * interface (windowsaio uses CreateFile)
62 #define O_DIRECT 0x1000000
63 #define O_SYNC 0x2000000
65 /* Windows doesn't support madvise, so any values will work */
66 #define POSIX_MADV_DONTNEED 0
67 #define POSIX_MADV_SEQUENTIAL 0
68 #define POSIX_MADV_RANDOM 0
72 #define O_NONBLOCK FIONBIO
74 /* Winsock doesn't support MSG_WAIT */
75 #define OS_MSG_DONTWAIT 0
86 typedef int siginfo_t;
90 void (*sa_handler)(int);
93 void* (*sa_sigaction)(int, siginfo_t *, void*);
96 long sysconf(int name);
98 int kill(pid_t pid, int sig);
100 int setgid(gid_t gid);
101 int setuid(uid_t uid);
103 int sigaction(int sig, const struct sigaction *act,
104 struct sigaction *oact);
105 int fsync(int fildes);
107 int fcntl(int fildes, int cmd, ...);
108 int fdatasync(int fildes);
109 int lstat(const char * path, struct stat * buf);
111 char* ctime_r(const time_t *t, char *buf);
112 int nanosleep(const struct timespec *rqtp, struct timespec *rmtp);
113 ssize_t pread(int fildes, void *buf, size_t nbyte, off_t offset);
114 ssize_t pwrite(int fildes, const void *buf, size_t nbyte,
117 static inline int blockdev_size(struct fio_file *f, unsigned long long *bytes)
121 GET_LENGTH_INFORMATION info;
124 if (f->hFile == NULL) {
125 hFile = CreateFile(f->file_name, GENERIC_READ, FILE_SHARE_READ | FILE_SHARE_WRITE,
126 NULL, OPEN_EXISTING, 0, NULL);
131 if (DeviceIoControl(hFile, IOCTL_DISK_GET_LENGTH_INFO, NULL, 0, &info, sizeof(info), &outBytes, NULL))
132 *bytes = info.Length.QuadPart;
136 /* If we were passed a POSIX fd,
137 * close the HANDLE we created via CreateFile */
138 if (hFile != INVALID_HANDLE_VALUE && f->hFile == NULL)
144 static inline int chardev_size(struct fio_file *f, unsigned long long *bytes)
146 return blockdev_size(f, bytes);
149 static inline int blockdev_invalidate_cache(struct fio_file *f)
154 static inline unsigned long long os_phys_mem(void)
156 long pagesize, pages;
158 pagesize = sysconf(_SC_PAGESIZE);
159 pages = sysconf(_SC_PHYS_PAGES);
160 if (pages == -1 || pagesize == -1)
163 return (unsigned long long) pages * (unsigned long long) pagesize;
166 static inline int gettid(void)
168 return GetCurrentThreadId();
171 static inline int init_random_seeds(unsigned long *rand_seeds, int size)
173 HCRYPTPROV hCryptProv;
175 if (!CryptAcquireContext(&hCryptProv, NULL, NULL, PROV_RSA_FULL, CRYPT_VERIFYCONTEXT))
177 errno = GetLastError();
178 log_err("CryptAcquireContext() failed: error %d\n", errno);
182 if (!CryptGenRandom(hCryptProv, size, (BYTE*)rand_seeds)) {
183 errno = GetLastError();
184 log_err("CryptGenRandom() failed, error %d\n", errno);
185 CryptReleaseContext(hCryptProv, 0);
189 CryptReleaseContext(hCryptProv, 0);
193 static inline int fio_set_sched_idle(void)
195 /* SetThreadPriority returns nonzero for success */
196 return (SetThreadPriority(GetCurrentThread(), THREAD_PRIORITY_IDLE))? 0 : -1;
199 #ifdef CONFIG_WINDOWS_XP
200 #include "os-windows-xp.h"
202 #include "os-windows-7.h"
205 #endif /* FIO_OS_WINDOWS_H */