mirror of https://github.com/GOSTSec/sgminer
117 lines
3.9 KiB
117 lines
3.9 KiB
/* |
|
* Windows compat: POSIX compatibility wrapper |
|
* Copyright (C) 2009-2010 Pete Batard <pbatard@gmail.com> |
|
* With contributions from Michael Plante, Orin Eman et al. |
|
* Parts of poll implementation from libusb-win32, by Stephan Meyer et al. |
|
* |
|
* This library is free software; you can redistribute it and/or |
|
* modify it under the terms of the GNU Lesser General Public |
|
* License as published by the Free Software Foundation; either |
|
* version 2.1 of the License, or (at your option) any later version. |
|
* |
|
* This library is distributed in the hope that it will be useful, |
|
* but WITHOUT ANY WARRANTY; without even the implied warranty of |
|
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
|
* Lesser General Public License for more details. |
|
* |
|
* You should have received a copy of the GNU Lesser General Public |
|
* License along with this library; if not, write to the Free Software |
|
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA |
|
* |
|
*/ |
|
#pragma once |
|
|
|
#include <windows.h> |
|
|
|
#if defined(_MSC_VER) |
|
// disable /W4 MSVC warnings that are benign |
|
#pragma warning(disable:4127) // conditional expression is constant |
|
#endif |
|
|
|
// Handle synchronous completion through the overlapped structure |
|
#if !defined(STATUS_REPARSE) // reuse the REPARSE status code |
|
#define STATUS_REPARSE ((LONG)0x00000104L) |
|
#endif |
|
#define STATUS_COMPLETED_SYNCHRONOUSLY STATUS_REPARSE |
|
#define HasOverlappedIoCompletedSync(lpOverlapped) (((DWORD)(lpOverlapped)->Internal) == STATUS_COMPLETED_SYNCHRONOUSLY) |
|
|
|
#define DUMMY_HANDLE ((HANDLE)(LONG_PTR)-2) |
|
|
|
enum windows_version { |
|
WINDOWS_UNSUPPORTED, |
|
WINDOWS_XP, |
|
WINDOWS_2003, // also includes XP 64 |
|
WINDOWS_VISTA_AND_LATER, |
|
}; |
|
extern enum windows_version windows_version; |
|
|
|
#define MAX_FDS 256 |
|
|
|
#define POLLIN 0x0001 /* There is data to read */ |
|
#define POLLPRI 0x0002 /* There is urgent data to read */ |
|
#define POLLOUT 0x0004 /* Writing now will not block */ |
|
#define POLLERR 0x0008 /* Error condition */ |
|
#define POLLHUP 0x0010 /* Hung up */ |
|
#define POLLNVAL 0x0020 /* Invalid request: fd not open */ |
|
|
|
struct pollfd { |
|
int fd; /* file descriptor */ |
|
short events; /* requested events */ |
|
short revents; /* returned events */ |
|
}; |
|
|
|
// access modes |
|
enum rw_type { |
|
RW_NONE, |
|
RW_READ, |
|
RW_WRITE, |
|
}; |
|
|
|
// fd struct that can be used for polling on Windows |
|
struct winfd { |
|
int fd; // what's exposed to libusb core |
|
HANDLE handle; // what we need to attach overlapped to the I/O op, so we can poll it |
|
OVERLAPPED* overlapped; // what will report our I/O status |
|
enum rw_type rw; // I/O transfer direction: read *XOR* write (NOT BOTH) |
|
}; |
|
extern const struct winfd INVALID_WINFD; |
|
|
|
int usbi_pipe(int pipefd[2]); |
|
int usbi_poll(struct pollfd *fds, unsigned int nfds, int timeout); |
|
ssize_t usbi_write(int fd, const void *buf, size_t count); |
|
ssize_t usbi_read(int fd, void *buf, size_t count); |
|
int usbi_close(int fd); |
|
|
|
void init_polling(void); |
|
void exit_polling(void); |
|
struct winfd usbi_create_fd(HANDLE handle, int access_mode); |
|
void usbi_free_fd(int fd); |
|
struct winfd fd_to_winfd(int fd); |
|
struct winfd handle_to_winfd(HANDLE handle); |
|
struct winfd overlapped_to_winfd(OVERLAPPED* overlapped); |
|
|
|
/* |
|
* Timeval operations |
|
*/ |
|
#if defined(DDKBUILD) |
|
#include <winsock.h> // defines timeval functions on DDK |
|
#endif |
|
|
|
#if !defined(TIMESPEC_TO_TIMEVAL) |
|
#define TIMESPEC_TO_TIMEVAL(tv, ts) { \ |
|
(tv)->tv_sec = (long)(ts)->tv_sec; \ |
|
(tv)->tv_usec = (long)(ts)->tv_nsec / 1000; \ |
|
} |
|
#endif |
|
#if !defined(timersub) |
|
#define timersub(a, b, result) \ |
|
do { \ |
|
(result)->tv_sec = (a)->tv_sec - (b)->tv_sec; \ |
|
(result)->tv_usec = (a)->tv_usec - (b)->tv_usec; \ |
|
if ((result)->tv_usec < 0) { \ |
|
--(result)->tv_sec; \ |
|
(result)->tv_usec += 1000000; \ |
|
} \ |
|
} while (0) |
|
#endif |
|
|
|
|