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108 lines
5.3 KiB
108 lines
5.3 KiB
/* |
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* Windows backend common header for libusbx 1.0 |
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* |
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* This file brings together header code common between |
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* the desktop Windows and Windows CE backends. |
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* Copyright © 2012-2013 RealVNC Ltd. |
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* Copyright © 2009-2012 Pete Batard <pete@akeo.ie> |
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* With contributions from Michael Plante, Orin Eman et al. |
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* Parts of this code adapted from libusb-win32-v1 by Stephan Meyer |
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* Major code testing contribution by Xiaofan Chen |
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* |
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* This library is free software; you can redistribute it and/or |
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* modify it under the terms of the GNU Lesser General Public |
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* License as published by the Free Software Foundation; either |
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* version 2.1 of the License, or (at your option) any later version. |
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* |
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* This library is distributed in the hope that it will be useful, |
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* but WITHOUT ANY WARRANTY; without even the implied warranty of |
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
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* Lesser General Public License for more details. |
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* |
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* You should have received a copy of the GNU Lesser General Public |
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* License along with this library; if not, write to the Free Software |
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* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA |
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*/ |
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#pragma once |
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// Windows API default is uppercase - ugh! |
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#if !defined(bool) |
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#define bool BOOL |
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#endif |
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#if !defined(true) |
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#define true TRUE |
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#endif |
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#if !defined(false) |
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#define false FALSE |
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#endif |
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#define safe_free(p) do {if (p != NULL) {free((void*)p); p = NULL;}} while(0) |
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#define safe_closehandle(h) do {if (h != INVALID_HANDLE_VALUE) {CloseHandle(h); h = INVALID_HANDLE_VALUE;}} while(0) |
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#define safe_min(a, b) min((size_t)(a), (size_t)(b)) |
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#define safe_strcp(dst, dst_max, src, count) do {memcpy(dst, src, safe_min(count, dst_max)); \ |
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((char*)dst)[safe_min(count, dst_max)-1] = 0;} while(0) |
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#define safe_strcpy(dst, dst_max, src) safe_strcp(dst, dst_max, src, safe_strlen(src)+1) |
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#define safe_strncat(dst, dst_max, src, count) strncat(dst, src, safe_min(count, dst_max - safe_strlen(dst) - 1)) |
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#define safe_strcat(dst, dst_max, src) safe_strncat(dst, dst_max, src, safe_strlen(src)+1) |
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#define safe_strcmp(str1, str2) strcmp(((str1==NULL)?"<NULL>":str1), ((str2==NULL)?"<NULL>":str2)) |
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#define safe_stricmp(str1, str2) _stricmp(((str1==NULL)?"<NULL>":str1), ((str2==NULL)?"<NULL>":str2)) |
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#define safe_strncmp(str1, str2, count) strncmp(((str1==NULL)?"<NULL>":str1), ((str2==NULL)?"<NULL>":str2), count) |
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#define safe_strlen(str) ((str==NULL)?0:strlen(str)) |
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#define safe_sprintf(dst, count, ...) do {_snprintf(dst, count, __VA_ARGS__); (dst)[(count)-1] = 0; } while(0) |
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#define safe_stprintf _sntprintf |
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#define safe_tcslen(str) ((str==NULL)?0:_tcslen(str)) |
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#define safe_unref_device(dev) do {if (dev != NULL) {libusb_unref_device(dev); dev = NULL;}} while(0) |
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#define wchar_to_utf8_ms(wstr, str, strlen) WideCharToMultiByte(CP_UTF8, 0, wstr, -1, str, strlen, NULL, NULL) |
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#ifndef ARRAYSIZE |
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#define ARRAYSIZE(A) (sizeof(A)/sizeof((A)[0])) |
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#endif |
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#define ERR_BUFFER_SIZE 256 |
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#define TIMER_REQUEST_RETRY_MS 100 |
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#define MAX_TIMER_SEMAPHORES 128 |
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/* |
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* API macros - from libusb-win32 1.x |
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*/ |
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#define DLL_DECLARE_PREFIXNAME(api, ret, prefixname, name, args) \ |
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typedef ret (api * __dll_##name##_t)args; \ |
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static __dll_##name##_t prefixname = NULL |
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#ifndef _WIN32_WCE |
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#define DLL_STRINGIFY(dll) #dll |
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#define DLL_GET_MODULE_HANDLE(dll) GetModuleHandleA(DLL_STRINGIFY(dll)) |
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#define DLL_LOAD_LIBRARY(dll) LoadLibraryA(DLL_STRINGIFY(dll)) |
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#else |
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#define DLL_STRINGIFY(dll) L#dll |
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#define DLL_GET_MODULE_HANDLE(dll) GetModuleHandle(DLL_STRINGIFY(dll)) |
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#define DLL_LOAD_LIBRARY(dll) LoadLibrary(DLL_STRINGIFY(dll)) |
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#endif |
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#define DLL_LOAD_PREFIXNAME(dll, prefixname, name, ret_on_failure) \ |
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do { \ |
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HMODULE h = DLL_GET_MODULE_HANDLE(dll); \ |
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if (!h) \ |
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h = DLL_LOAD_LIBRARY(dll); \ |
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if (!h) { \ |
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if (ret_on_failure) { return LIBUSB_ERROR_NOT_FOUND; } \ |
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else { break; } \ |
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} \ |
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prefixname = (__dll_##name##_t)GetProcAddress(h, \ |
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DLL_STRINGIFY(name)); \ |
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if (prefixname) break; \ |
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prefixname = (__dll_##name##_t)GetProcAddress(h, \ |
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DLL_STRINGIFY(name) DLL_STRINGIFY(A)); \ |
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if (prefixname) break; \ |
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prefixname = (__dll_##name##_t)GetProcAddress(h, \ |
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DLL_STRINGIFY(name) DLL_STRINGIFY(W)); \ |
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if (prefixname) break; \ |
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if(ret_on_failure) \ |
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return LIBUSB_ERROR_NOT_FOUND; \ |
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} while(0) |
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#define DLL_DECLARE(api, ret, name, args) DLL_DECLARE_PREFIXNAME(api, ret, name, name, args) |
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#define DLL_LOAD(dll, name, ret_on_failure) DLL_LOAD_PREFIXNAME(dll, name, name, ret_on_failure) |
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#define DLL_DECLARE_PREFIXED(api, ret, prefix, name, args) DLL_DECLARE_PREFIXNAME(api, ret, prefix##name, name, args) |
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#define DLL_LOAD_PREFIXED(dll, prefix, name, ret_on_failure) DLL_LOAD_PREFIXNAME(dll, prefix##name, name, ret_on_failure)
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