thread.c File Reference

#include <stdarg.h>
#include <string.h>
#include "windef.h"
#include "winbase.h"
#include "winnls.h"
#include "winuser.h"
#include "shlwapi.h"
#include "shlobj.h"
#include "wine/debug.h"

Include dependency graph for thread.c:

Go to the source code of this file.

Macros
#define	COBJMACROS
#define	NO_SHLWAPI_REG
#define	NO_SHLWAPI_PATH
#define	NO_SHLWAPI_GDI
#define	NO_SHLWAPI_STREAM
#define	NO_SHLWAPI_USER

Functions
	WINE_DEFAULT_DEBUG_CHANNEL (shell)
INT WINAPI	SHStringFromGUIDA (REFGUID, LPSTR, INT)
LPSECURITY_ATTRIBUTES WINAPI	CreateAllAccessSecurityAttributes (LPSECURITY_ATTRIBUTES lpAttr, PSECURITY_DESCRIPTOR lpSec, DWORD p3)
HRESULT WINAPI	_SHGetInstanceExplorer (IUnknown **lppUnknown)
LONG WINAPI	SHGlobalCounterGetValue (HANDLE hSem)
LONG WINAPI	SHGlobalCounterIncrement (HANDLE hSem)
DWORD WINAPI	SHGlobalCounterDecrement (HANDLE hSem)
HANDLE WINAPI	SHGlobalCounterCreateNamedW (LPCWSTR lpszName, DWORD iInitial)
HANDLE WINAPI	SHGlobalCounterCreateNamedA (LPCSTR lpszName, DWORD iInitial)
HANDLE WINAPI	SHGlobalCounterCreate (REFGUID guid)

Variables
DWORD	SHLWAPI_ThreadRef_index

Macro Definition Documentation

COBJMACROS

#define COBJMACROS

Definition at line 24 of file thread.c.

NO_SHLWAPI_GDI

#define NO_SHLWAPI_GDI

Definition at line 32 of file thread.c.

NO_SHLWAPI_PATH

#define NO_SHLWAPI_PATH

Definition at line 31 of file thread.c.

NO_SHLWAPI_REG

#define NO_SHLWAPI_REG

Definition at line 30 of file thread.c.

NO_SHLWAPI_STREAM

#define NO_SHLWAPI_STREAM

Definition at line 33 of file thread.c.

NO_SHLWAPI_USER

#define NO_SHLWAPI_USER

Definition at line 34 of file thread.c.

Function Documentation

_SHGetInstanceExplorer()

HRESULT WINAPI _SHGetInstanceExplorer

(

IUnknown **

lppUnknown

)

Definition at line 104 of file thread.c.

{
  /* This function is used within SHLWAPI only to hold the IE reference
   * for threads created with the CTF_PROCESS_REF flag set. */
    return SHGetInstanceExplorer(lppUnknown);
}

CreateAllAccessSecurityAttributes()

LPSECURITY_ATTRIBUTES WINAPI CreateAllAccessSecurityAttributes	(	LPSECURITY_ATTRIBUTES	lpAttr,
		PSECURITY_DESCRIPTOR	lpSec,
		DWORD	p3
	)

Definition at line 63 of file thread.c.

{
  /* This function is used within SHLWAPI only to create security attributes
   * for shell semaphores. */
 
  TRACE("(%p,%p,%08lx)\n", lpAttr, lpSec, p3);
 
  if (!(GetVersion() & 0x80000000))  /* NT */
  {
    if (!lpSec || !lpAttr)
      return NULL;
 
    if (InitializeSecurityDescriptor(lpSec, 1))
    {
      if (SetSecurityDescriptorDacl(lpSec, TRUE, NULL, FALSE))
      {
         lpAttr->nLength = sizeof(SECURITY_ATTRIBUTES);
         lpAttr->lpSecurityDescriptor = lpSec;
         lpAttr->bInheritHandle = FALSE;
         return lpAttr;
      }
    }
  }
  return NULL;
}

Referenced by SHGlobalCounterCreateNamedW().

SHGlobalCounterCreate()

HANDLE WINAPI SHGlobalCounterCreate

(

REFGUID

guid

)

Definition at line 240 of file thread.c.

{
  char szName[40];
 
  TRACE("(%s)\n", debugstr_guid(guid));
 
  /* Create a named semaphore using the GUID string */
  SHStringFromGUIDA(guid, szName, sizeof(szName) - 1);
  return SHGlobalCounterCreateNamedA(szName, 0);
}

Referenced by CPolicyCache::Initialize(), and SHELL_GetCachedGlobalCounter().

SHGlobalCounterCreateNamedA()

HANDLE WINAPI SHGlobalCounterCreateNamedA	(	LPCSTR	lpszName,
		DWORD	iInitial
	)

Definition at line 215 of file thread.c.

{
  WCHAR szBuff[MAX_PATH];
 
  TRACE("(%s,%ld)\n", debugstr_a(lpszName), iInitial);
 
  if (lpszName)
    MultiByteToWideChar(CP_ACP, 0, lpszName, -1, szBuff, MAX_PATH);
  return SHGlobalCounterCreateNamedW(lpszName ? szBuff : NULL, iInitial);
}

Referenced by SHGlobalCounterCreate().

SHGlobalCounterCreateNamedW()

HANDLE WINAPI SHGlobalCounterCreateNamedW	(	LPCWSTR	lpszName,
		DWORD	iInitial
	)

Definition at line 179 of file thread.c.

{
  static const WCHAR szPrefix[] = { 's', 'h', 'e', 'l', 'l', '.', '\0' };
  const int iPrefixLen = 6;
  WCHAR szBuff[MAX_PATH];
  SECURITY_DESCRIPTOR sd;
  SECURITY_ATTRIBUTES sAttr, *pSecAttr;
  HANDLE hRet;
 
  TRACE("(%s,%ld)\n", debugstr_w(lpszName), iInitial);
 
  /* Create Semaphore name */
  memcpy(szBuff, szPrefix, (iPrefixLen + 1) * sizeof(WCHAR));
  if (lpszName)
    StrCpyNW(szBuff + iPrefixLen, lpszName, ARRAY_SIZE(szBuff) - iPrefixLen);
 
  /* Initialise security attributes */
  pSecAttr = CreateAllAccessSecurityAttributes(&sAttr, &sd, 0);
 
  if (!(hRet = CreateSemaphoreW(pSecAttr , iInitial, MAXLONG, szBuff)))
    hRet = OpenSemaphoreW(SYNCHRONIZE|SEMAPHORE_MODIFY_STATE, 0, szBuff);
  return hRet;
}

Referenced by SHGlobalCounterCreateNamedA().

SHGlobalCounterDecrement()

DWORD WINAPI SHGlobalCounterDecrement

(

HANDLE

hSem

)

Definition at line 163 of file thread.c.

{
  DWORD dwOldCount = 0;
 
  TRACE("(%p)\n", hSem);
 
  dwOldCount = SHGlobalCounterGetValue(hSem);
  WaitForSingleObject(hSem, 0);
  return dwOldCount - 1;
}

SHGlobalCounterGetValue()

LONG WINAPI SHGlobalCounterGetValue

(

HANDLE

hSem

)

Definition at line 122 of file thread.c.

{
  LONG dwOldCount = 0;
 
  TRACE("(%p)\n", hSem);
  ReleaseSemaphore(hSem, 1, &dwOldCount); /* +1 */
  WaitForSingleObject(hSem, 0);           /* -1 */
  return dwOldCount;
}

Referenced by CPolicyCache::_ValidateCachedResults(), SHELL_QueryRestrictionsChanged(), and SHGlobalCounterDecrement().

SHGlobalCounterIncrement()

LONG WINAPI SHGlobalCounterIncrement

(

HANDLE

hSem

)

Definition at line 143 of file thread.c.

{
  LONG dwOldCount = 0;
 
  TRACE("(%p)\n", hSem);
  ReleaseSemaphore(hSem, 1, &dwOldCount);
  return dwOldCount + 1;
}

Referenced by SHSettingsChanged().

SHStringFromGUIDA()

INT WINAPI SHStringFromGUIDA	(	REFGUID	guid,
		LPSTR	lpszDest,
		INT	cchMax
	)

Definition at line 51 of file shimtest.c.

{
    CHAR Buffer[100] = {0};
 
    if (CALL_SHIM(1, tSHStringFromGUIDA)(guid, Buffer, sizeof(Buffer)-1))
    {
        SHIM_INFO("Original function returned: '%s'\n", Buffer);
    }
    else
    {
        SHIM_INFO("Original function failed\n");
        Buffer[0] = '\0';
    }
 
    StringCchCopyA(lpszDest, cchMax, "ShimTest:");
    StringCchCatA(lpszDest, cchMax, Buffer);
    return 0;
}

Referenced by SHGlobalCounterCreate().

WINE_DEFAULT_DEBUG_CHANNEL()

WINE_DEFAULT_DEBUG_CHANNEL

(

shell

)

Variable Documentation

SHLWAPI_ThreadRef_index

DWORD SHLWAPI_ThreadRef_index

extern

Definition at line 34 of file shlwapi_main.c.

Referenced by DllMain().