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
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 char* ctime_r(const time_t *t, char *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,
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)
150 static inline unsigned long long os_phys_mem(void)
152 long pagesize, pages;
154 pagesize = sysconf(_SC_PAGESIZE);
155 pages = sysconf(_SC_PHYS_PAGES);
156 if (pages == -1 || pagesize == -1)
159 return (unsigned long long) pages * (unsigned long long) pagesize;
162 static inline int gettid(void)
164 return GetCurrentThreadId();
167 static inline int init_random_seeds(unsigned long *rand_seeds, int size)
169 HCRYPTPROV hCryptProv;
171 if (!CryptAcquireContext(&hCryptProv, NULL, NULL, PROV_RSA_FULL, CRYPT_VERIFYCONTEXT))
173 errno = GetLastError();
174 log_err("CryptAcquireContext() failed: error %d\n", errno);
178 if (!CryptGenRandom(hCryptProv, size, (BYTE*)rand_seeds)) {
179 errno = GetLastError();
180 log_err("CryptGenRandom() failed, error %d\n", errno);
181 CryptReleaseContext(hCryptProv, 0);
185 CryptReleaseContext(hCryptProv, 0);
189 static inline int fio_set_sched_idle(void)
191 /* SetThreadPriority returns nonzero for success */
192 return (SetThreadPriority(GetCurrentThread(), THREAD_PRIORITY_IDLE))? 0 : -1;
195 #ifdef CONFIG_WINDOWS_XP
196 #include "os-windows-xp.h"
198 #include "os-windows-7.h"
201 #endif /* FIO_OS_WINDOWS_H */