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"
24 #include "os-windows-7.h"
26 #ifndef PTHREAD_STACK_MIN
27 #define PTHREAD_STACK_MIN 65535
30 #define FIO_HAVE_ODIRECT
31 #define FIO_HAVE_CPU_AFFINITY
32 #define FIO_HAVE_CHARDEV_SIZE
33 #define FIO_HAVE_GETTID
34 #define FIO_EMULATED_MKDIR_TWO
36 #define FIO_PREFERRED_ENGINE "windowsaio"
37 #define FIO_PREFERRED_CLOCK_SOURCE CS_CGETTIME
38 #define FIO_OS_PATH_SEPARATOR '\\'
40 #define OS_MAP_ANON MAP_ANON
42 #define fio_swap16(x) _byteswap_ushort(x)
43 #define fio_swap32(x) _byteswap_ulong(x)
44 #define fio_swap64(x) _byteswap_uint64(x)
46 #define _SC_PAGESIZE 0x1
47 #define _SC_NPROCESSORS_ONLN 0x2
48 #define _SC_PHYS_PAGES 0x4
54 * Windows doesn't have O_DIRECT or O_SYNC, so define them
55 * here so we can reject them at runtime when using the _open
56 * interface (windowsaio uses CreateFile)
58 #define O_DIRECT 0x1000000
59 #define O_SYNC 0x2000000
61 /* Windows doesn't support madvise, so any values will work */
62 #define POSIX_MADV_DONTNEED 0
63 #define POSIX_MADV_SEQUENTIAL 0
64 #define POSIX_MADV_RANDOM 0
68 #define O_NONBLOCK FIONBIO
70 /* Winsock doesn't support MSG_WAIT */
71 #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 #ifndef CONFIG_HAVE_GETTID
163 static inline int gettid(void)
165 return GetCurrentThreadId();
169 static inline int init_random_seeds(uint64_t *rand_seeds, int size)
171 HCRYPTPROV hCryptProv;
173 if (!CryptAcquireContext(&hCryptProv, NULL, NULL, PROV_RSA_FULL, CRYPT_VERIFYCONTEXT))
175 errno = GetLastError();
176 log_err("CryptAcquireContext() failed: error %d\n", errno);
180 if (!CryptGenRandom(hCryptProv, size, (BYTE*)rand_seeds)) {
181 errno = GetLastError();
182 log_err("CryptGenRandom() failed, error %d\n", errno);
183 CryptReleaseContext(hCryptProv, 0);
187 CryptReleaseContext(hCryptProv, 0);
191 static inline int fio_set_sched_idle(void)
193 /* SetThreadPriority returns nonzero for success */
194 return (SetThreadPriority(GetCurrentThread(), THREAD_PRIORITY_IDLE))? 0 : -1;
197 static inline int fio_mkdir(const char *path, mode_t mode) {
198 DWORD dwAttr = GetFileAttributesA(path);
200 if (dwAttr != INVALID_FILE_ATTRIBUTES &&
201 (dwAttr & FILE_ATTRIBUTE_DIRECTORY)) {
206 if (CreateDirectoryA(path, NULL) == 0) {
207 /* Ignore errors if path is a device namespace */
208 if (strcmp(path, "\\\\.") == 0) {
212 errno = win_to_posix_error(GetLastError());
219 #define FIO_HAVE_CPU_ONLINE_SYSCONF
220 unsigned int cpus_online(void);
222 int first_set_cpu(os_cpu_mask_t *cpumask);
223 int fio_setaffinity(int pid, os_cpu_mask_t cpumask);
224 int fio_cpuset_init(os_cpu_mask_t *mask);
225 int fio_getaffinity(int pid, os_cpu_mask_t *mask);
226 void fio_cpu_clear(os_cpu_mask_t *mask, int cpu);
227 void fio_cpu_set(os_cpu_mask_t *mask, int cpu);
228 int fio_cpu_isset(os_cpu_mask_t *mask, int cpu);
229 int fio_cpu_count(os_cpu_mask_t *mask);
230 int fio_cpuset_exit(os_cpu_mask_t *mask);
232 #endif /* FIO_OS_WINDOWS_H */