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 #ifndef PTHREAD_STACK_MIN
26 #define PTHREAD_STACK_MIN 65535
29 #define FIO_HAVE_ODIRECT
30 #define FIO_HAVE_CPU_AFFINITY
31 #define FIO_HAVE_CHARDEV_SIZE
32 #define FIO_HAVE_GETTID
33 #define FIO_EMULATED_MKDIR_TWO
35 #define FIO_PREFERRED_ENGINE "windowsaio"
36 #define FIO_PREFERRED_CLOCK_SOURCE CS_CGETTIME
37 #define FIO_OS_PATH_SEPARATOR '\\'
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 #define _SC_PAGESIZE 0x1
46 #define _SC_NPROCESSORS_ONLN 0x2
47 #define _SC_PHYS_PAGES 0x4
53 * Windows doesn't have O_DIRECT or O_SYNC, so define them
54 * here so we can reject them at runtime when using the _open
55 * interface (windowsaio uses CreateFile)
57 #define O_DIRECT 0x1000000
58 #define O_SYNC 0x2000000
60 /* Windows doesn't support madvise, so any values will work */
61 #define POSIX_MADV_DONTNEED 0
62 #define POSIX_MADV_SEQUENTIAL 0
63 #define POSIX_MADV_RANDOM 0
67 #define O_NONBLOCK FIONBIO
69 /* Winsock doesn't support MSG_WAIT */
70 #define OS_MSG_DONTWAIT 0
81 typedef int siginfo_t;
85 void (*sa_handler)(int);
88 void* (*sa_sigaction)(int, siginfo_t *, void*);
91 long sysconf(int name);
93 int kill(pid_t pid, int sig);
95 int setgid(gid_t gid);
96 int setuid(uid_t uid);
98 int sigaction(int sig, const struct sigaction *act,
99 struct sigaction *oact);
100 int fsync(int fildes);
102 int fcntl(int fildes, int cmd, ...);
103 int fdatasync(int fildes);
104 int lstat(const char * path, struct stat * buf);
106 char* ctime_r(const time_t *t, char *buf);
107 int nanosleep(const struct timespec *rqtp, struct timespec *rmtp);
108 ssize_t pread(int fildes, void *buf, size_t nbyte, off_t offset);
109 ssize_t pwrite(int fildes, const void *buf, size_t nbyte,
112 static inline int blockdev_size(struct fio_file *f, unsigned long long *bytes)
116 GET_LENGTH_INFORMATION info;
119 if (f->hFile == NULL) {
120 hFile = CreateFile(f->file_name, GENERIC_READ, FILE_SHARE_READ | FILE_SHARE_WRITE,
121 NULL, OPEN_EXISTING, 0, NULL);
126 if (DeviceIoControl(hFile, IOCTL_DISK_GET_LENGTH_INFO, NULL, 0, &info, sizeof(info), &outBytes, NULL))
127 *bytes = info.Length.QuadPart;
131 /* If we were passed a POSIX fd,
132 * close the HANDLE we created via CreateFile */
133 if (hFile != INVALID_HANDLE_VALUE && f->hFile == NULL)
139 static inline int chardev_size(struct fio_file *f, unsigned long long *bytes)
141 return blockdev_size(f, bytes);
144 static inline int blockdev_invalidate_cache(struct fio_file *f)
149 static inline unsigned long long os_phys_mem(void)
151 long pagesize, pages;
153 pagesize = sysconf(_SC_PAGESIZE);
154 pages = sysconf(_SC_PHYS_PAGES);
155 if (pages == -1 || pagesize == -1)
158 return (unsigned long long) pages * (unsigned long long) pagesize;
161 #ifndef CONFIG_HAVE_GETTID
162 static inline int gettid(void)
164 return GetCurrentThreadId();
168 static inline int init_random_seeds(uint64_t *rand_seeds, int size)
170 HCRYPTPROV hCryptProv;
172 if (!CryptAcquireContext(&hCryptProv, NULL, NULL, PROV_RSA_FULL, CRYPT_VERIFYCONTEXT))
174 errno = GetLastError();
175 log_err("CryptAcquireContext() failed: error %d\n", errno);
179 if (!CryptGenRandom(hCryptProv, size, (BYTE*)rand_seeds)) {
180 errno = GetLastError();
181 log_err("CryptGenRandom() failed, error %d\n", errno);
182 CryptReleaseContext(hCryptProv, 0);
186 CryptReleaseContext(hCryptProv, 0);
190 static inline int fio_set_sched_idle(void)
192 /* SetThreadPriority returns nonzero for success */
193 return (SetThreadPriority(GetCurrentThread(), THREAD_PRIORITY_IDLE))? 0 : -1;
196 static inline int fio_mkdir(const char *path, mode_t mode) {
197 DWORD dwAttr = GetFileAttributesA(path);
199 if (dwAttr != INVALID_FILE_ATTRIBUTES &&
200 (dwAttr & FILE_ATTRIBUTE_DIRECTORY)) {
205 if (CreateDirectoryA(path, NULL) == 0) {
206 /* Ignore errors if path is a device namespace */
207 if (strcmp(path, "\\\\.") == 0) {
211 errno = win_to_posix_error(GetLastError());
218 #ifdef CONFIG_WINDOWS_XP
219 #include "os-windows-xp.h"
221 #define FIO_HAVE_CPU_ONLINE_SYSCONF
222 unsigned int cpus_online(void);
223 #include "os-windows-7.h"
226 int first_set_cpu(os_cpu_mask_t *cpumask);
227 int fio_setaffinity(int pid, os_cpu_mask_t cpumask);
228 int fio_cpuset_init(os_cpu_mask_t *mask);
229 int fio_getaffinity(int pid, os_cpu_mask_t *mask);
230 void fio_cpu_clear(os_cpu_mask_t *mask, int cpu);
231 void fio_cpu_set(os_cpu_mask_t *mask, int cpu);
232 int fio_cpu_isset(os_cpu_mask_t *mask, int cpu);
233 int fio_cpu_count(os_cpu_mask_t *mask);
234 int fio_cpuset_exit(os_cpu_mask_t *mask);
236 #endif /* FIO_OS_WINDOWS_H */