1 #ifndef FIO_OS_WINDOWS_H
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2 #define FIO_OS_WINDOWS_H
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4 #include <sys/types.h>
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10 #include "../smalloc.h"
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11 #include "../file.h"
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14 #define FIO_HAVE_ODIRECT
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15 #define FIO_HAVE_CPU_AFFINITY
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16 #define FIO_HAVE_CHARDEV_SIZE
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17 #define FIO_HAVE_FALLOCATE
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18 #define FIO_HAVE_FDATASYNC
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19 #define FIO_HAVE_WINDOWSAIO
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20 #define FIO_HAVE_GETTID
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22 #define FIO_USE_GENERIC_RAND
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24 #define OS_MAP_ANON MAP_ANON
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26 #define OS_CLOCK CLOCK_REALTIME
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28 #define FIO_PREFERRED_ENGINE "windowsaio"
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30 #define FIO_LITTLE_ENDIAN
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31 #define fio_swap16(x) _byteswap_ushort(x)
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32 #define fio_swap32(x) _byteswap_ulong(x)
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33 #define fio_swap64(x) _byteswap_uint64(x)
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35 typedef off_t off64_t;
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38 LARGE_INTEGER Length;
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39 } GET_LENGTH_INFORMATION;
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41 #define IOCTL_DISK_GET_LENGTH_INFO 0x7405C
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43 pid_t cygwin_winpid_to_pid(int winpid);
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45 static inline int blockdev_size(struct fio_file *f, unsigned long long *bytes)
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50 if (f->hFile == NULL) {
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51 hFile = CreateFile(f->file_name, GENERIC_READ, FILE_SHARE_READ | FILE_SHARE_WRITE,
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52 NULL, OPEN_EXISTING, 0, NULL);
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57 GET_LENGTH_INFORMATION info;
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61 if (DeviceIoControl(hFile, IOCTL_DISK_GET_LENGTH_INFO, NULL, 0, &info, sizeof(info), &outBytes, NULL))
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62 *bytes = info.Length.QuadPart;
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66 /* If we were passed a POSIX fd,
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67 * close the HANDLE we created via CreateFile */
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68 if (hFile != INVALID_HANDLE_VALUE && f->hFile == NULL)
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74 static inline int chardev_size(struct fio_file *f, unsigned long long *bytes)
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76 return blockdev_size(f, bytes);
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79 static inline int blockdev_invalidate_cache(struct fio_file *f)
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81 /* There's no way to invalidate the cache in Windows
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82 * so just pretend to succeed */
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86 static inline unsigned long long os_phys_mem(void)
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88 SYSTEM_INFO sysInfo;
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90 GetSystemInfo(&sysInfo);
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91 addr = (unsigned long)sysInfo.lpMaximumApplicationAddress;
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95 static inline void os_get_tmpdir(char *path, int len)
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97 GetTempPath(len, path);
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100 typedef DWORD_PTR os_cpu_mask_t;
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102 static inline int gettid(void)
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104 return GetCurrentThreadId();
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107 static inline int pid_to_winpid(int pid)
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110 DWORD outbytes = 0;
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114 allocsize = sizeof(DWORD) * 1024;
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117 if (allocsize == outbytes)
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120 ids = realloc(ids, allocsize);
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121 EnumProcesses(ids, allocsize, &outbytes);
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122 } while (allocsize == outbytes);
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124 for (int i = 0; i < (outbytes/sizeof(DWORD)); i++) {
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125 if (cygwin_winpid_to_pid(ids[i]) == pid) {
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135 HANDLE WINAPI OpenThread(
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136 DWORD dwDesiredAccess,
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137 BOOL bInheritHandle,
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140 DWORD WINAPI GetProcessIdOfThread(HANDLE Thread);
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142 static inline int fio_setaffinity(int pid, os_cpu_mask_t cpumask)
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148 h = OpenThread(THREAD_QUERY_INFORMATION | THREAD_SET_INFORMATION, TRUE, pid);
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150 bSuccess = SetThreadAffinityMask(h, cpumask);
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152 // then we might have a process id instead of a thread id
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153 winpid = pid_to_winpid(pid);
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154 h = OpenProcess(PROCESS_QUERY_INFORMATION | PROCESS_SET_INFORMATION, TRUE, winpid);
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158 bSuccess = SetProcessAffinityMask(h, cpumask);
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163 return (bSuccess)? 0 : -1;
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166 static inline void fio_getaffinity(int pid, os_cpu_mask_t *mask)
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168 os_cpu_mask_t systemMask;
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171 HANDLE h = OpenThread(THREAD_QUERY_INFORMATION, TRUE, pid);
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173 winpid = GetProcessIdOfThread(h);
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175 winpid = pid_to_winpid(pid);
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177 h = OpenProcess(PROCESS_QUERY_INFORMATION, TRUE, winpid);
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180 GetProcessAffinityMask(h, mask, &systemMask);
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183 fprintf(stderr, "fio_getaffinity failed: failed to get handle for pid %d\n", pid);
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188 static inline void fio_cpu_clear(os_cpu_mask_t *mask, int cpu)
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190 *mask ^= 1 << (cpu-1);
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193 static inline void fio_cpu_set(os_cpu_mask_t *mask, int cpu)
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195 *mask |= 1 << (cpu-1);
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198 static inline int fio_cpuset_init(os_cpu_mask_t *mask)
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204 static inline int fio_cpuset_exit(os_cpu_mask_t *mask)
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209 #define FIO_MAX_CPUS MAXIMUM_PROCESSORS
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212 #define FIO_MADV_FREE MADV_FREE
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215 #endif /* FIO_OS_WINDOWS_H */
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