#ifndef FIO_OS_WINDOWS_H | |
#define FIO_OS_WINDOWS_H | |
#include <sys/types.h> | |
#include <errno.h> | |
#include <windows.h> | |
#include <psapi.h> | |
#include "../smalloc.h" | |
#include "../file.h" | |
#include "../log.h" | |
#define FIO_HAVE_ODIRECT | |
#define FIO_HAVE_CPU_AFFINITY | |
#define FIO_HAVE_CHARDEV_SIZE | |
#define FIO_HAVE_FALLOCATE | |
#define FIO_HAVE_FDATASYNC | |
#define FIO_HAVE_WINDOWSAIO | |
#define FIO_HAVE_GETTID | |
#define FIO_USE_GENERIC_RAND | |
#define OS_MAP_ANON MAP_ANON | |
#define OS_CLOCK CLOCK_REALTIME | |
#define FIO_PREFERRED_ENGINE "windowsaio" | |
typedef off_t off64_t; | |
typedef struct { | |
LARGE_INTEGER Length; | |
} GET_LENGTH_INFORMATION; | |
#define IOCTL_DISK_GET_LENGTH_INFO 0x7405C | |
pid_t cygwin_winpid_to_pid(int winpid); | |
static inline int blockdev_size(struct fio_file *f, unsigned long long *bytes) | |
{ | |
int rc = 0; | |
HANDLE hFile; | |
if (f->hFile == NULL) { | |
hFile = CreateFile(f->file_name, GENERIC_READ, FILE_SHARE_READ | FILE_SHARE_WRITE, | |
NULL, OPEN_EXISTING, 0, NULL); | |
} else { | |
hFile = f->hFile; | |
} | |
GET_LENGTH_INFORMATION info; | |
DWORD outBytes; | |
LARGE_INTEGER size; | |
size.QuadPart = 0; | |
if (DeviceIoControl(hFile, IOCTL_DISK_GET_LENGTH_INFO, NULL, 0, &info, sizeof(info), &outBytes, NULL)) | |
*bytes = info.Length.QuadPart; | |
else | |
rc = EIO; | |
/* If we were passed a POSIX fd, | |
* close the HANDLE we created via CreateFile */ | |
if (hFile != INVALID_HANDLE_VALUE && f->hFile == NULL) | |
CloseHandle(hFile); | |
return rc; | |
} | |
static inline int chardev_size(struct fio_file *f, unsigned long long *bytes) | |
{ | |
return blockdev_size(f, bytes); | |
} | |
static inline int blockdev_invalidate_cache(struct fio_file *f) | |
{ | |
/* There's no way to invalidate the cache in Windows | |
* so just pretend to succeed */ | |
return 0; | |
} | |
static inline unsigned long long os_phys_mem(void) | |
{ | |
SYSTEM_INFO sysInfo; | |
unsigned long addr; | |
GetSystemInfo(&sysInfo); | |
addr = (unsigned long)sysInfo.lpMaximumApplicationAddress; | |
return addr; | |
} | |
static inline void os_get_tmpdir(char *path, int len) | |
{ | |
GetTempPath(len, path); | |
} | |
typedef DWORD_PTR os_cpu_mask_t; | |
static inline int gettid(void) | |
{ | |
return GetCurrentThreadId(); | |
} | |
static inline int pid_to_winpid(int pid) | |
{ | |
int winpid = 0; | |
DWORD outbytes = 0; | |
DWORD *ids = NULL; | |
size_t allocsize; | |
allocsize = sizeof(DWORD) * 1024; | |
do { | |
if (allocsize == outbytes) | |
allocsize *= 2; | |
ids = realloc(ids, allocsize); | |
EnumProcesses(ids, allocsize, &outbytes); | |
} while (allocsize == outbytes); | |
for (int i = 0; i < (outbytes/sizeof(DWORD)); i++) { | |
if (cygwin_winpid_to_pid(ids[i]) == pid) { | |
winpid = ids[i]; | |
break; | |
} | |
} | |
free(ids); | |
return winpid; | |
} | |
HANDLE WINAPI OpenThread( | |
DWORD dwDesiredAccess, | |
BOOL bInheritHandle, | |
DWORD dwThreadId); | |
DWORD WINAPI GetProcessIdOfThread(HANDLE Thread); | |
static inline int fio_setaffinity(int pid, os_cpu_mask_t cpumask) | |
{ | |
HANDLE h; | |
BOOL bSuccess; | |
int winpid; | |
h = OpenThread(THREAD_QUERY_INFORMATION | THREAD_SET_INFORMATION, TRUE, pid); | |
if (h != NULL) { | |
bSuccess = SetThreadAffinityMask(h, cpumask); | |
} else { | |
// then we might have a process id instead of a thread id | |
winpid = pid_to_winpid(pid); | |
h = OpenProcess(PROCESS_QUERY_INFORMATION | PROCESS_SET_INFORMATION, TRUE, winpid); | |
if (h == NULL) | |
return -1; | |
bSuccess = SetProcessAffinityMask(h, cpumask); | |
} | |
CloseHandle(h); | |
return (bSuccess)? 0 : -1; | |
} | |
static inline void fio_getaffinity(int pid, os_cpu_mask_t *mask) | |
{ | |
os_cpu_mask_t systemMask; | |
int winpid; | |
HANDLE h = OpenThread(THREAD_QUERY_INFORMATION, TRUE, pid); | |
if (h != NULL) | |
winpid = GetProcessIdOfThread(h); | |
else | |
winpid = pid_to_winpid(pid); | |
h = OpenProcess(PROCESS_QUERY_INFORMATION, TRUE, winpid); | |
if (h != NULL) { | |
GetProcessAffinityMask(h, mask, &systemMask); | |
CloseHandle(h); | |
} else { | |
fprintf(stderr, "fio_getaffinity failed: failed to get handle for pid %d\n", pid); | |
} | |
} | |
static inline void fio_cpu_clear(os_cpu_mask_t *mask, int cpu) | |
{ | |
*mask ^= 1 << (cpu-1); | |
} | |
static inline void fio_cpu_set(os_cpu_mask_t *mask, int cpu) | |
{ | |
*mask |= 1 << (cpu-1); | |
} | |
static inline int fio_cpuset_init(os_cpu_mask_t *mask) | |
{ | |
*mask = 0; | |
return 0; | |
} | |
static inline int fio_cpuset_exit(os_cpu_mask_t *mask) | |
{ | |
return 0; | |
} | |
#define FIO_MAX_CPUS MAXIMUM_PROCESSORS | |
#ifdef MADV_FREE | |
#define FIO_MADV_FREE MADV_FREE | |
#endif | |
#endif /* FIO_OS_WINDOWS_H */ |