#include <winsvc.h>

Include dependency graph for audiosrv.h:

Classes
struct	PnP_AudioDevice

struct	PnP_AudioHeader

Macros
#define	SERVICE_NAME L"AudioSrv"

#define	AUDIO_LIST_LOCK_NAME L"Global\\AudioDeviceListLock"

#define	AUDIO_LIST_NAME L"Global\\AudioDeviceList"

#define	AUDIO_LIST_MAX_SIZE 65536

#define	WideStringSize(str) ( (lstrlenW(str) + 1) * sizeof(WCHAR) )

Functions
BOOL	InitializeAudioDeviceListLock (VOID)

VOID	KillAudioDeviceListLock (VOID)

VOID	LockAudioDeviceList (VOID)

VOID	UnlockAudioDeviceList (VOID)

Macro Definition Documentation

◆ AUDIO_LIST_LOCK_NAME

#define AUDIO_LIST_LOCK_NAME L"Global\\AudioDeviceListLock"

Definition at line 19 of file audiosrv.h.

◆ AUDIO_LIST_MAX_SIZE

#define AUDIO_LIST_MAX_SIZE 65536

Definition at line 25 of file audiosrv.h.

◆ AUDIO_LIST_NAME

#define AUDIO_LIST_NAME L"Global\\AudioDeviceList"

Definition at line 22 of file audiosrv.h.

◆ SERVICE_NAME

#define SERVICE_NAME L"AudioSrv"

Definition at line 15 of file audiosrv.h.

◆ WideStringSize

#define WideStringSize ( str ) ( (lstrlenW(str) + 1) * sizeof(WCHAR) )

Definition at line 45 of file audiosrv.h.

Function Documentation

◆ InitializeAudioDeviceListLock()

BOOL InitializeAudioDeviceListLock ( VOID )

Definition at line 15 of file pnp_list_lock.c.

{
    /* 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);
}

Referenced by CreateAudioDeviceList().

◆ KillAudioDeviceListLock()

VOID KillAudioDeviceListLock ( VOID )

Definition at line 38 of file pnp_list_lock.c.

{
    CloseHandle(audio_device_list_lock);
    audio_device_list_lock = NULL;
}

Referenced by CreateAudioDeviceList(), and DestroyAudioDeviceList().

◆ LockAudioDeviceList()

VOID LockAudioDeviceList ( VOID )

Definition at line 45 of file pnp_list_lock.c.

{
    assert(audio_device_list_lock != NULL);
    WaitForSingleObject(audio_device_list_lock, INFINITE);
}

Referenced by AppendAudioDeviceToList(), CreateAudioDeviceList(), and DestroyAudioDeviceList().

◆ UnlockAudioDeviceList()

VOID UnlockAudioDeviceList ( VOID )

Definition at line 52 of file pnp_list_lock.c.

{
    assert(audio_device_list_lock != NULL);
    ReleaseMutex(audio_device_list_lock);
}