[silverblade] 29100: ReactOS Audio Service. Has not been tested within ReactOS but on Windows (XP) it now detects when new devices have been attached. This information is shared via a mapped file. I have also written a utility to read the contents of the mapped file (this is not included - further work is required). Added a few missing #defines to dbt.h and also reformatted some of the WinMM code so it was clearer to read.
Author: silverblade Date: Wed Sep 19 08:13:24 2007 New Revision: 29100
URL: http://svn.reactos.org/svn/reactos?rev=29100&view=rev Log: ReactOS Audio Service. Has not been tested within ReactOS but on Windows (XP) it now detects when new devices have been attached. This information is shared via a mapped file. I have also written a utility to read the contents of the mapped file (this is not included - further work is required).
Added a few missing #defines to dbt.h and also reformatted some of the WinMM code so it was clearer to read.
Added: trunk/reactos/base/services/audiosrv/pnp_list_lock.c trunk/reactos/base/services/audiosrv/pnp_list_manager.c trunk/reactos/base/services/audiosrv/pnp_list_manager.h trunk/reactos/include/reactos/libs/audiosrv/ trunk/reactos/include/reactos/libs/audiosrv/audiosrv.h Modified: trunk/reactos/base/services/audiosrv/audiosrv.rbuild trunk/reactos/base/services/audiosrv/main.c trunk/reactos/dll/win32/winmm/driver.c trunk/reactos/dll/win32/winmm/lolvldrv.c trunk/reactos/include/psdk/dbt.h
Modified: trunk/reactos/base/services/audiosrv/audiosrv.rbuild URL: http://svn.reactos.org/svn/reactos/trunk/reactos/base/services/audiosrv/audi... ============================================================================== --- trunk/reactos/base/services/audiosrv/audiosrv.rbuild (original) +++ trunk/reactos/base/services/audiosrv/audiosrv.rbuild Wed Sep 19 08:13:24 2007 @@ -1,10 +1,16 @@ -<module name="audiosrv" type="win32cui" installbase="system32" installname="audiosrv.exe" allowwarnings="true"> +<module name="audiosrv" type="win32cui" installbase="system32" +installname="audiosrv.exe" allowwarnings="true"> <include base="audiosrv">.</include> + <define name="UNICODE" /> <define name="__USE_W32API" /> <define name="__REACTOS__" /> <define name="_WIN32_WINNT">0x0501</define> + <define name="WINVER">0x0501</define> <library>kernel32</library> <library>advapi32</library> + <library>user32</library> <file>main.c</file> + <file>pnp_list_manager.c</file> + <file>pnp_list_lock.c</file> <file>audiosrv.rc</file> </module>
Modified: trunk/reactos/base/services/audiosrv/main.c URL: http://svn.reactos.org/svn/reactos/trunk/reactos/base/services/audiosrv/main... ============================================================================== --- trunk/reactos/base/services/audiosrv/main.c (original) +++ trunk/reactos/base/services/audiosrv/main.c Wed Sep 19 08:13:24 2007 @@ -7,16 +7,12 @@ */
#include <windows.h> +#include <winuser.h> +#include <dbt.h> +#include <audiosrv/audiosrv.h> +#include <pnp_list_manager.h>
-/* This is currently set to avoid conflicting service names in Windows! */ -#define SERVICE_NAME "RosAudioSrv" - -/* A named mutex is used for synchronizing access to the device list. - If this mutex doesn't exist, it means the audio service isn't running. */ -#define DEVICE_LIST_MUTEX_NAME "Global\AudioDeviceListSync" - -/* ...and this is where the device list will be available */ -#define DEVICE_LIST_MAPPED_FILENAME "Global\AudioDeviceList" +#include <ksmedia.h>
@@ -25,19 +21,23 @@ VOID CALLBACK ServiceMain(DWORD argc, char** argv);
-VOID WINAPI -ServiceControlHandler(DWORD request); - +DWORD WINAPI +ServiceControlHandler( + DWORD dwControl, + DWORD dwEventType, + LPVOID lpEventData, + LPVOID lpContext);
/* Service table */ SERVICE_TABLE_ENTRY service_table[2] = { - { "AudioSrv", (LPSERVICE_MAIN_FUNCTION) ServiceMain }, + { L"AudioSrv", (LPSERVICE_MAIN_FUNCTION) ServiceMain }, { NULL, NULL } };
SERVICE_STATUS_HANDLE service_status_handle; SERVICE_STATUS service_status; +HDEVNOTIFY device_notification_handle = NULL;
/* Synchronization of access to the event list */ HANDLE device_list_mutex = INVALID_HANDLE_VALUE; @@ -45,40 +45,109 @@
/* Implementation */
-VOID WINAPI -ServiceControlHandler(DWORD request) +DWORD +ProcessDeviceArrival(DEV_BROADCAST_DEVICEINTERFACE* device) { - switch ( request ) + PnP_AudioDevice* list_node; + list_node = CreateDeviceDescriptor(device->dbcc_name, TRUE); + AppendAudioDeviceToList(list_node); + DestroyDeviceDescriptor(list_node); + + return NO_ERROR; +} + +DWORD WINAPI +ServiceControlHandler( + DWORD dwControl, + DWORD dwEventType, + LPVOID lpEventData, + LPVOID lpContext) +{ + switch ( dwControl ) { + case SERVICE_CONTROL_INTERROGATE : + { + return NO_ERROR; + } + case SERVICE_CONTROL_STOP : case SERVICE_CONTROL_SHUTDOWN : { + /* FIXME: This function doesn't exist?! */ +/* + UnregisterDeviceNotification(device_notification_handle); + device_notification_handle = NULL; +*/ + + DestroyAudioDeviceList(); + service_status.dwCurrentState = SERVICE_STOP_PENDING; SetServiceStatus(service_status_handle, &service_status); - - CloseHandle(device_list_mutex);
service_status.dwWin32ExitCode = 0; service_status.dwCurrentState = SERVICE_STOPPED;
SetServiceStatus(service_status_handle, &service_status);
- return; + return NO_ERROR; }
+ case SERVICE_CONTROL_DEVICEEVENT : + { + switch ( dwEventType ) + { + case DBT_DEVICEARRIVAL : + { + DEV_BROADCAST_DEVICEINTERFACE* incoming_device = + (DEV_BROADCAST_DEVICEINTERFACE*) lpEventData; + + return ProcessDeviceArrival(incoming_device); + } + + default : + { + break; + } + } + + return NO_ERROR; + }
default : - break; + return ERROR_CALL_NOT_IMPLEMENTED; };
- SetServiceStatus(service_status_handle, &service_status); + /*SetServiceStatus(service_status_handle, &service_status);*/ +} + +BOOL +RegisterForDeviceNotifications() +{ + DEV_BROADCAST_DEVICEINTERFACE notification_filter; + + const GUID wdmaud_guid = {STATIC_KSCATEGORY_WDMAUD}; + + /* FIXME: This currently lists ALL device interfaces... */ + ZeroMemory(¬ification_filter, sizeof(notification_filter)); + notification_filter.dbcc_size = sizeof(DEV_BROADCAST_DEVICEINTERFACE); + notification_filter.dbcc_devicetype = DBT_DEVTYP_DEVICEINTERFACE; + notification_filter.dbcc_classguid = wdmaud_guid; + + device_notification_handle = + RegisterDeviceNotification((HANDLE) service_status_handle, + ¬ification_filter, + DEVICE_NOTIFY_SERVICE_HANDLE | + DEVICE_NOTIFY_ALL_INTERFACE_CLASSES); + + return ( device_notification_handle != NULL ); }
VOID CALLBACK ServiceMain(DWORD argc, char** argv) { - service_status_handle = RegisterServiceCtrlHandler(SERVICE_NAME, - ServiceControlHandler); + service_status_handle = RegisterServiceCtrlHandlerEx(SERVICE_NAME, + ServiceControlHandler, + NULL);
/* Set these to defaults */ service_status.dwServiceType = SERVICE_WIN32_OWN_PROCESS; @@ -92,15 +161,22 @@ service_status.dwCurrentState = SERVICE_START_PENDING; SetServiceStatus(service_status_handle, &service_status);
- /* We should create the mapped section here along with the mutex to - sync access to the device list... */ - - device_list_mutex = CreateMutex(NULL, FALSE, DEVICE_LIST_MUTEX_NAME); - - if ( ! device_list_mutex) + /* This creates the audio device list and mutex */ + if ( ! CreateAudioDeviceList(AUDIO_LIST_MAX_SIZE) ) { service_status.dwCurrentState = SERVICE_STOPPED; - service_status.dwWin32ExitCode = -1; // ok? + service_status.dwWin32ExitCode = -1; + SetServiceStatus(service_status_handle, &service_status); + return; + } + + /* We want to know when devices are added/removed */ + if ( ! RegisterForDeviceNotifications() ) + { + DestroyAudioDeviceList(); + + service_status.dwCurrentState = SERVICE_STOPPED; + service_status.dwWin32ExitCode = -1; SetServiceStatus(service_status_handle, &service_status); return; } @@ -114,4 +190,5 @@ int main() { StartServiceCtrlDispatcher(service_table); + return 0; }
Added: trunk/reactos/base/services/audiosrv/pnp_list_lock.c URL: http://svn.reactos.org/svn/reactos/trunk/reactos/base/services/audiosrv/pnp_... ============================================================================== --- trunk/reactos/base/services/audiosrv/pnp_list_lock.c (added) +++ trunk/reactos/base/services/audiosrv/pnp_list_lock.c Wed Sep 19 08:13:24 2007 @@ -1,0 +1,58 @@ +/* + * PROJECT: ReactOS + * LICENSE: GPL - See COPYING in the top level directory + * FILE: base/services/audiosrv/list_lock.c + * PURPOSE: Audio Service Plug and Play list locking mechanism + * COPYRIGHT: Copyright 2007 Andrew Greenwood + */ + +#include <windows.h> +#include <assert.h> +#include <audiosrv/audiosrv.h> + +static HANDLE audio_device_list_lock = NULL; + +BOOL +InitializeAudioDeviceListLock() +{ + /* The security stuff is to make sure the mutex can be grabbed by + other processes - is this the best idea though ??? */ + + SECURITY_DESCRIPTOR security_descriptor; + SECURITY_ATTRIBUTES security; + + InitializeSecurityDescriptor(&security_descriptor, SECURITY_DESCRIPTOR_REVISION); + SetSecurityDescriptorDacl(&security_descriptor, TRUE, 0, FALSE); + + security.nLength = sizeof(SECURITY_ATTRIBUTES); + security.lpSecurityDescriptor = &security_descriptor; + security.bInheritHandle = FALSE; + + audio_device_list_lock = CreateMutex(&security, + FALSE, + AUDIO_LIST_LOCK_NAME); + + return ( audio_device_list_lock != NULL ); +} + +VOID +KillAudioDeviceListLock() +{ + CloseHandle(audio_device_list_lock); + audio_device_list_lock = NULL; +} + +VOID +LockAudioDeviceList() +{ + assert( audio_device_list_lock != NULL ); + WaitForSingleObject(audio_device_list_lock, INFINITE); +} + +VOID +UnlockAudioDeviceList() +{ + assert( audio_device_list_lock != NULL ); + ReleaseMutex(audio_device_list_lock); +} +
Added: trunk/reactos/base/services/audiosrv/pnp_list_manager.c URL: http://svn.reactos.org/svn/reactos/trunk/reactos/base/services/audiosrv/pnp_... ============================================================================== --- trunk/reactos/base/services/audiosrv/pnp_list_manager.c (added) +++ trunk/reactos/base/services/audiosrv/pnp_list_manager.c Wed Sep 19 08:13:24 2007 @@ -1,0 +1,173 @@ +/* + * PROJECT: ReactOS + * LICENSE: GPL - See COPYING in the top level directory + * FILE: base/services/audiosrv/pnp_list_manager.c + * PURPOSE: Audio Service List Manager + * COPYRIGHT: Copyright 2007 Andrew Greenwood + */ + +#include <assert.h> +#include <audiosrv/audiosrv.h> + + +/* + Device descriptor +*/ + +VOID* +CreateDeviceDescriptor(WCHAR* path, BOOL is_enabled) +{ + PnP_AudioDevice* device; + + int path_length = WideStringSize(path); + int size = sizeof(PnP_AudioDevice) + path_length; + +/* printf("path_length %d, total %d\n", path_length, size);*/ + + device = malloc(size); + + if ( ! device ) + return NULL; + + device->enabled = is_enabled; + memcpy(device->path, path, path_length); + + return device; +} + + +/* + Device list (manager-side) + + The device list is stored in some shared-memory, with a named, global + mutex to provide a locking mechanism (to avoid it from being updated + whilst being read). +*/ + +static HANDLE device_list_file = NULL; +static PnP_AudioHeader* audio_device_list = NULL; + +BOOL +AppendAudioDeviceToList(PnP_AudioDevice* device) +{ + int device_info_size; + + /* Figure out the actual structure size */ + device_info_size = sizeof(PnP_AudioDevice); + device_info_size += WideStringSize(device->path); + + LockAudioDeviceList(); + +/* + printf("list size is %d\n", audio_device_list->size); + printf("device info size is %d bytes\n", device_info_size); +*/ + + /* We DON'T want to overshoot the end of the buffer! */ + if ( audio_device_list->size + device_info_size > audio_device_list->max_size ) + { +/* + printf("max_size would be exceeded! failing\n"); +*/ + return FALSE; + } + + /* Commit the device descriptor to the list */ + memcpy((char*)audio_device_list + audio_device_list->size, + device, + device_info_size); + + /* Update the header */ + audio_device_list->device_count ++; + audio_device_list->size += device_info_size; + + UnlockAudioDeviceList(); + + return TRUE; +} + +BOOL +CreateAudioDeviceList(DWORD max_size) +{ +/* printf("Initializing memory device list lock\n");*/ + + if ( ! InitializeAudioDeviceListLock() ) + { + /*printf("Failed!\n");*/ + return FALSE; + } + + /* Preliminary locking - the list memory will likely be a big + buffer of gibberish at this point so we don't want anyone + turning up before we're ready... */ + LockAudioDeviceList(); + + /* Expose our device list to the world */ + device_list_file = CreateFileMapping(INVALID_HANDLE_VALUE, + NULL, + PAGE_READWRITE, + 0, + max_size, + AUDIO_LIST_NAME); + + if ( ! device_list_file ) + { + /*printf("Creation of audio device list FAILED!\n");*/ + + UnlockAudioDeviceList(); + KillAudioDeviceListLock(); + + return FALSE; + } + + /* Of course, we'll need to access the list ourselves */ + audio_device_list = MapViewOfFile(device_list_file, + FILE_MAP_WRITE, + 0, + 0, + max_size); + + if ( ! audio_device_list ) + { + /*printf("MapViewOfFile FAILED\n");*/ + + CloseHandle(device_list_file); + device_list_file = NULL; + + UnlockAudioDeviceList(); + KillAudioDeviceListLock(); + + return FALSE; + } + + /* Clear the mem to avoid any random stray data */ + memset(audio_device_list, 0, max_size); + + /* Don't want devices to overwrite the list! */ + audio_device_list->size = sizeof(PnP_AudioHeader); + audio_device_list->max_size = max_size; + audio_device_list->device_count = 0; + + UnlockAudioDeviceList(); + + return TRUE; +} + +VOID +DestroyAudioDeviceList() +{ + LockAudioDeviceList(); + + /*printf("Unmapping view\n");*/ + UnmapViewOfFile(audio_device_list); + audio_device_list = NULL; + + /*printf("Closing memory mapped file\n");*/ + CloseHandle(device_list_file); + device_list_file = NULL; + + UnlockAudioDeviceList(); + + /*printf("Killing devlist lock\n");*/ + KillAudioDeviceListLock(); +}
Added: trunk/reactos/base/services/audiosrv/pnp_list_manager.h URL: http://svn.reactos.org/svn/reactos/trunk/reactos/base/services/audiosrv/pnp_... ============================================================================== --- trunk/reactos/base/services/audiosrv/pnp_list_manager.h (added) +++ trunk/reactos/base/services/audiosrv/pnp_list_manager.h Wed Sep 19 08:13:24 2007 @@ -1,0 +1,29 @@ +/* + * PROJECT: ReactOS + * LICENSE: GPL - See COPYING in the top level directory + * FILE: base/services/audiosrv/pnp_list_manager.h + * PURPOSE: Audio Service List Manager + * COPYRIGHT: Copyright 2007 Andrew Greenwood + */ + +#include <assert.h> +#include <audiosrv/audiosrv.h> + +#ifndef PNP_LIST_MANAGER_H +#define PNP_LIST_MANAGER_H + +VOID* +CreateDeviceDescriptor(WCHAR* path, BOOL is_enabled); + +#define DestroyDeviceDescriptor(descriptor) free(descriptor) + +BOOL +AppendAudioDeviceToList(PnP_AudioDevice* device); + +BOOL +CreateAudioDeviceList(DWORD max_size); + +VOID +DestroyAudioDeviceList(); + +#endif
Modified: trunk/reactos/dll/win32/winmm/driver.c URL: http://svn.reactos.org/svn/reactos/trunk/reactos/dll/win32/winmm/driver.c?re... ============================================================================== --- trunk/reactos/dll/win32/winmm/driver.c (original) +++ trunk/reactos/dll/win32/winmm/driver.c Wed Sep 19 08:13:24 2007 @@ -4,6 +4,8 @@ * Copyright 1994 Martin Ayotte * Copyright 1998 Marcus Meissner * Copyright 1999 Eric Pouech + * + * Reformatting and additional comments added by Andrew Greenwood. * * This library is free software; you can redistribute it and/or * modify it under the terms of the GNU Lesser General Public @@ -213,17 +215,29 @@ static const WCHAR wszSystemIni[] = {'S','Y','S','T','E','M','.','I','N','I',0}; WCHAR wsznull = '\0';
+ /* This takes us as far as Windows NT\CurrentVersion */ lRet = RegOpenKeyExW(HKEY_LOCAL_MACHINE, HKLM_BASE, 0, KEY_QUERY_VALUE, &hKey); - if (lRet == ERROR_SUCCESS) { - lRet = RegOpenKeyExW(hKey, sectName, 0, KEY_QUERY_VALUE, &hSecKey); - if (lRet == ERROR_SUCCESS) { + + if (lRet == ERROR_SUCCESS) + { + /* Now we descend into the section name that we were given */ + lRet = RegOpenKeyExW(hKey, sectName, 0, KEY_QUERY_VALUE, &hSecKey); + + if (lRet == ERROR_SUCCESS) + { + /* Retrieve the desired value - this is the filename of the lib */ bufLen = sz; - lRet = RegQueryValueExW(hSecKey, keyName, 0, 0, (void*)buf, &bufLen); - RegCloseKey( hSecKey ); - } + lRet = RegQueryValueExW(hSecKey, keyName, 0, 0, (void*)buf, &bufLen); + RegCloseKey( hSecKey ); + } + RegCloseKey( hKey ); } - if (lRet == ERROR_SUCCESS) return TRUE; + + /* Finish up if we've got what we want from the registry */ + if (lRet == ERROR_SUCCESS) + return TRUE; + /* default to system.ini if we can't find it in the registry, * to support native installations where system.ini is still used */ return GetPrivateProfileStringW(sectName, keyName, &wsznull, buf, sz / sizeof(WCHAR), wszSystemIni); @@ -243,19 +257,38 @@
TRACE("(%s, %08lX);\n", debugstr_w(fn), lParam2);
- if ((ptr = strchrW(fn, ' ')) != NULL) { - *ptr++ = '\0'; - while (*ptr == ' ') ptr++; - if (*ptr == '\0') ptr = NULL; + if ((ptr = strchrW(fn, ' ')) != NULL) + { + *ptr++ = '\0'; + + while (*ptr == ' ') + ptr++; + + if (*ptr == '\0') + ptr = NULL; }
lpDrv = HeapAlloc(GetProcessHeap(), 0, sizeof(WINE_DRIVER)); - if (lpDrv == NULL) {cause = "OOM"; goto exit;} - - if ((hModule = LoadLibraryW(fn)) == 0) {cause = "Not a 32 bit lib"; goto exit;} + + if (lpDrv == NULL) + { + cause = "OOM"; + goto exit; + } + + if ((hModule = LoadLibraryW(fn)) == 0) + { + cause = "Not a 32 bit lib"; + goto exit; + }
lpDrv->d.d32.lpDrvProc = (DRIVERPROC)GetProcAddress(hModule, "DriverProc"); - if (lpDrv->d.d32.lpDrvProc == NULL) {cause = "no DriverProc"; goto exit;} + + if (lpDrv->d.d32.lpDrvProc == NULL) + { + cause = "no DriverProc"; + goto exit; + }
lpDrv->dwFlags = 0; lpDrv->d.d32.hModule = hModule; @@ -285,10 +318,14 @@ }
if (!DRIVER_AddToList(lpDrv, (LPARAM)ptr, lParam2)) - {cause = "load failed"; goto exit;} + { + cause = "load failed"; + goto exit; + }
TRACE("=> %p\n", lpDrv); return lpDrv; + exit: FreeLibrary(hModule); HeapFree(GetProcessHeap(), 0, lpDrv); @@ -347,17 +384,32 @@ TRACE("(%s, %s, 0x%08lx);\n", debugstr_w(lpDriverName), debugstr_w(lpSectionName), lParam);
- if (lsn == NULL) { + /* If no section name is specified, either the caller is intending on + opening a driver by filename, or wants to open a user-installable + driver that has an entry in the Drivers32 key in the registry */ + if (lsn == NULL) + { + /* Default registry key */ static const WCHAR wszDrivers32[] = {'D','r','i','v','e','r','s','3','2',0}; - lstrcpynW(libName, lpDriverName, sizeof(libName) / sizeof(WCHAR)); - - if ((lpDrv = DRIVER_TryOpenDriver32(libName, lParam))) - goto the_end; - lsn = wszDrivers32; - } - if (DRIVER_GetLibName(lpDriverName, lsn, libName, sizeof(libName)) && - (lpDrv = DRIVER_TryOpenDriver32(libName, lParam))) - goto the_end; + + lstrcpynW(libName, lpDriverName, sizeof(libName) / sizeof(WCHAR)); + + /* Try and open the driver by filename */ + if ( lpDrv = DRIVER_TryOpenDriver32(libName, lParam) ) + goto the_end; + + /* If we got here, the file wasn't found. So we assume the caller + wanted a driver specified under the Drivers32 registry key */ + lsn = wszDrivers32; + } + + /* Attempt to locate the driver filename in the registry */ + if ( DRIVER_GetLibName(lpDriverName, lsn, libName, sizeof(libName)) ) + { + /* Now we have the filename, we can try and load it */ + if ( lpDrv = DRIVER_TryOpenDriver32(libName, lParam) ) + goto the_end; + }
/* now we will try a 16 bit driver (and add all the glue to make it work... which * is located in our mmsystem implementation)
Modified: trunk/reactos/dll/win32/winmm/lolvldrv.c URL: http://svn.reactos.org/svn/reactos/trunk/reactos/dll/win32/winmm/lolvldrv.c?... ============================================================================== --- trunk/reactos/dll/win32/winmm/lolvldrv.c (original) +++ trunk/reactos/dll/win32/winmm/lolvldrv.c Wed Sep 19 08:13:24 2007 @@ -4,6 +4,7 @@ * MMSYTEM low level drivers handling functions * * Copyright 1999 Eric Pouech + * Modified for use with ReactOS by Andrew Greenwood, 2007 * * This library is free software; you can redistribute it and/or * modify it under the terms of the GNU Lesser General Public
Modified: trunk/reactos/include/psdk/dbt.h URL: http://svn.reactos.org/svn/reactos/trunk/reactos/include/psdk/dbt.h?rev=2910... ============================================================================== --- trunk/reactos/include/psdk/dbt.h (original) +++ trunk/reactos/include/psdk/dbt.h Wed Sep 19 08:13:24 2007 @@ -20,6 +20,7 @@ #define DBT_DEVTYP_VOLUME 2 #define DBT_DEVTYP_PORT 3 #define DBT_DEVTYP_NET 4 +#define DBT_DEVTYP_DEVICEINTERFACE 5 #define DBT_APPYBEGIN 0 #define DBT_APPYEND 1 #define DBT_DEVNODES_CHANGED 7 @@ -101,6 +102,13 @@ DWORD dbcv_unitmask; WORD dbcv_flags; } DEV_BROADCAST_VOLUME,*PDEV_BROADCAST_VOLUME; +typedef struct _DEV_BROADCAST_DEVICEINTERFACE { + DWORD dbcc_size; + DWORD dbcc_devicetype; + DWORD dbcc_reserved; + GUID dbcc_classguid; + TCHAR dbcc_name[1]; +} DEV_BROADCAST_DEVICEINTERFACE, *PDEV_BROADCAST_DEVICEINTERFACE;
#ifdef UNICODE typedef DEV_BROADCAST_PORT_W DEV_BROADCAST_PORT, *PDEV_BROADCAST_PORT;
Added: trunk/reactos/include/reactos/libs/audiosrv/audiosrv.h URL: http://svn.reactos.org/svn/reactos/trunk/reactos/include/reactos/libs/audios... ============================================================================== --- trunk/reactos/include/reactos/libs/audiosrv/audiosrv.h (added) +++ trunk/reactos/include/reactos/libs/audiosrv/audiosrv.h Wed Sep 19 08:13:24 2007 @@ -1,0 +1,60 @@ +/* + * PROJECT: ReactOS + * LICENSE: GPL - See COPYING in the top level directory + * FILE: include/reactos/libs/audiosrv/audiosrv.h + * PURPOSE: Audio Service Plug and Play list + * COPYRIGHT: Copyright 2007 Andrew Greenwood + */ + +#include <windows.h> + +#ifndef AUDIOSRV_H +#define AUDIOSRV_H + +/* This is currently set to avoid conflicting service names in Windows! */ +#define SERVICE_NAME L"RosAudioSrv" + +/* A named mutex is used for synchronizing access to the device list. + If this mutex doesn't exist, it means the audio service isn't running. */ +#define AUDIO_LIST_LOCK_NAME L"Global\AudioDeviceListLock" + +/* ...and this is where the device list will be available */ +#define AUDIO_LIST_NAME L"Global\AudioDeviceList" + +/* Amount of shared memory to allocate */ +#define AUDIO_LIST_MAX_SIZE 65536 + +typedef struct +{ + DWORD enabled; + WCHAR path[]; /* The device object path (excluded from sizeof) */ +} PnP_AudioDevice; + +typedef struct +{ + DWORD size; /* Size of the shared mem */ + DWORD max_size; /* Amount of mem available */ + DWORD device_count; /* Number of devices */ + PnP_AudioDevice first_device[]; +} PnP_AudioHeader; + + +/* Calculate amount of memory consumed by a wide string - this includes the + terminating NULL. */ + +#define WideStringSize(str) \ + ( (lstrlenW(str) + 1) * sizeof(WCHAR) ) + +BOOL +InitializeAudioDeviceListLock(); + +VOID +KillAudioDeviceListLock(); + +VOID +LockAudioDeviceList(); + +VOID +UnlockAudioDeviceList(); + +#endif
-
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