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
39 #define FIO_PREFERRED_ENGINE "windowsaio"
40 #define FIO_PREFERRED_CLOCK_SOURCE CS_CGETTIME
41 #define FIO_OS_PATH_SEPARATOR '\\'
43 #define OS_MAP_ANON MAP_ANON
45 #define fio_swap16(x) _byteswap_ushort(x)
46 #define fio_swap32(x) _byteswap_ulong(x)
47 #define fio_swap64(x) _byteswap_uint64(x)
49 #define _SC_PAGESIZE 0x1
50 #define _SC_NPROCESSORS_ONLN 0x2
51 #define _SC_PHYS_PAGES 0x4
57 * Windows doesn't have O_DIRECT or O_SYNC, so define them
58 * here so we can reject them at runtime when using the _open
59 * interface (windowsaio uses CreateFile)
61 #define O_DIRECT 0x1000000
62 #define O_SYNC 0x2000000
64 /* Windows doesn't support madvise, so any values will work */
65 #define POSIX_MADV_DONTNEED 0
66 #define POSIX_MADV_SEQUENTIAL 0
67 #define POSIX_MADV_RANDOM 0
71 #define O_NONBLOCK FIONBIO
73 /* Winsock doesn't support MSG_WAIT */
74 #define OS_MSG_DONTWAIT 0
85 typedef int siginfo_t;
89 void (*sa_handler)(int);
92 void* (*sa_sigaction)(int, siginfo_t *, void*);
95 long sysconf(int name);
97 int kill(pid_t pid, int sig);
99 int setgid(gid_t gid);
100 int setuid(uid_t uid);
102 int sigaction(int sig, const struct sigaction *act,
103 struct sigaction *oact);
104 int fsync(int fildes);
106 int fcntl(int fildes, int cmd, ...);
107 int fdatasync(int fildes);
108 int lstat(const char * path, struct stat * buf);
110 char* ctime_r(const time_t *t, char *buf);
111 int nanosleep(const struct timespec *rqtp, struct timespec *rmtp);
112 ssize_t pread(int fildes, void *buf, size_t nbyte, off_t offset);
113 ssize_t pwrite(int fildes, const void *buf, size_t nbyte,
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)
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 init_random_seeds(unsigned long *rand_seeds, int size)
172 HCRYPTPROV hCryptProv;
174 if (!CryptAcquireContext(&hCryptProv, NULL, NULL, PROV_RSA_FULL, CRYPT_VERIFYCONTEXT))
176 errno = GetLastError();
177 log_err("CryptAcquireContext() failed: error %d\n", errno);
181 if (!CryptGenRandom(hCryptProv, size, (BYTE*)rand_seeds)) {
182 errno = GetLastError();
183 log_err("CryptGenRandom() failed, error %d\n", errno);
184 CryptReleaseContext(hCryptProv, 0);
188 CryptReleaseContext(hCryptProv, 0);
192 static inline int fio_set_sched_idle(void)
194 /* SetThreadPriority returns nonzero for success */
195 return (SetThreadPriority(GetCurrentThread(), THREAD_PRIORITY_IDLE))? 0 : -1;
198 #ifdef CONFIG_WINDOWS_XP
199 #include "os-windows-xp.h"
201 #include "os-windows-7.h"
204 #endif /* FIO_OS_WINDOWS_H */