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wmiutils: Add locking to the path object.

This commit is contained in:
Hans Leidekker 2013-01-18 16:21:04 +01:00 committed by Alexandre Julliard
parent 6b8c910b37
commit 585dbbfc62
1 changed files with 116 additions and 31 deletions
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147
dlls/wmiutils/path.c
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@ -34,18 +34,19 @@ WINE_DEFAULT_DEBUG_CHANNEL(wmiutils);
struct path
{
IWbemPath IWbemPath_iface;
LONG refs;
WCHAR *text;
int len_text;
WCHAR *server;
int len_server;
WCHAR **namespaces;
int *len_namespaces;
int num_namespaces;
WCHAR *class;
int len_class;
ULONGLONG flags;
IWbemPath IWbemPath_iface;
LONG refs;
CRITICAL_SECTION cs;
WCHAR *text;
int len_text;
WCHAR *server;
int len_server;
WCHAR **namespaces;
int *len_namespaces;
int num_namespaces;
WCHAR *class;
int len_class;
ULONGLONG flags;
};
static void init_path( struct path *path )
@ -93,6 +94,8 @@ static ULONG WINAPI path_Release(
{
TRACE("destroying %p\n", path);
clear_path( path );
path->cs.DebugInfo->Spare[0] = 0;
DeleteCriticalSection( &path->cs );
heap_free( path );
}
return refs;
@ -193,26 +196,32 @@ static HRESULT WINAPI path_SetText(
LPCWSTR pszPath)
{
struct path *path = impl_from_IWbemPath( iface );
HRESULT hr;
HRESULT hr = S_OK;
int len;
TRACE("%p, %u, %s\n", iface, uMode, debugstr_w(pszPath));
if (!uMode || !pszPath) return WBEM_E_INVALID_PARAMETER;
EnterCriticalSection( &path->cs );
clear_path( path );
if (!pszPath[0]) return S_OK;
if ((hr = parse_text( path, uMode, pszPath )) != S_OK) return hr;
if (!pszPath[0]) goto done;
if ((hr = parse_text( path, uMode, pszPath )) != S_OK) goto done;
len = strlenW( pszPath );
if (!(path->text = heap_alloc( (len + 1) * sizeof(WCHAR) )))
{
clear_path( path );
return E_OUTOFMEMORY;
hr = E_OUTOFMEMORY;
goto done;
}
strcpyW( path->text, pszPath );
path->len_text = len;
return S_OK;
done:
LeaveCriticalSection( &path->cs );
return hr;
}
static WCHAR *build_namespace( struct path *path, int *len, BOOL leading_slash )
@ -379,6 +388,7 @@ static HRESULT WINAPI path_GetText(
LPWSTR pszText)
{
struct path *path = impl_from_IWbemPath( iface );
HRESULT hr = S_OK;
WCHAR *str;
int len;
@ -386,25 +396,29 @@ static HRESULT WINAPI path_GetText(
if (!puBufferLength) return WBEM_E_INVALID_PARAMETER;
str = build_path( path, lFlags, &len );
EnterCriticalSection( &path->cs );
str = build_path( path, lFlags, &len );
if (*puBufferLength < len + 1)
{
*puBufferLength = len + 1;
return S_OK;
goto done;
}
if (!pszText)
{
heap_free( str );
return WBEM_E_INVALID_PARAMETER;
hr = WBEM_E_INVALID_PARAMETER;
goto done;
}
if (str) strcpyW( pszText, str );
else pszText[0] = 0;
*puBufferLength = len + 1;
TRACE("<-- %s\n", debugstr_w(pszText));
TRACE("returning %s\n", debugstr_w(pszText));
done:
heap_free( str );
return S_OK;
LeaveCriticalSection( &path->cs );
return hr;
}
static HRESULT WINAPI path_GetInfo(
@ -420,6 +434,8 @@ static HRESULT WINAPI path_GetInfo(
FIXME("some flags are not implemented\n");
EnterCriticalSection( &path->cs );
*response = path->flags;
if (!path->server || (path->len_server == 1 && path->server[0] == '.'))
*response |= WBEMPATH_INFO_ANON_LOCAL_MACHINE;
@ -436,6 +452,8 @@ static HRESULT WINAPI path_GetInfo(
else
*response |= WBEMPATH_INFO_IS_CLASS_REF;
}
LeaveCriticalSection( &path->cs );
return S_OK;
}
@ -451,9 +469,15 @@ static HRESULT WINAPI path_SetServer(
TRACE("%p, %s\n", iface, debugstr_w(name));
EnterCriticalSection( &path->cs );
if (name)
{
if (!(server = strdupW( name ))) return WBEM_E_OUT_OF_MEMORY;
if (!(server = strdupW( name )))
{
LeaveCriticalSection( &path->cs );
return WBEM_E_OUT_OF_MEMORY;
}
heap_free( path->server );
path->server = server;
path->len_server = strlenW( path->server );
@ -466,6 +490,8 @@ static HRESULT WINAPI path_SetServer(
path->len_server = 0;
path->flags &= ~flags;
}
LeaveCriticalSection( &path->cs );
return S_OK;
}
@ -479,9 +505,18 @@ static HRESULT WINAPI path_GetServer(
TRACE("%p, %p, %p\n", iface, len, name);
if (!len || (*len && !name)) return WBEM_E_INVALID_PARAMETER;
if (!path->server) return WBEM_E_NOT_AVAILABLE;
EnterCriticalSection( &path->cs );
if (!path->server)
{
LeaveCriticalSection( &path->cs );
return WBEM_E_NOT_AVAILABLE;
}
if (*len > path->len_server) strcpyW( name, path->server );
*len = path->len_server + 1;
LeaveCriticalSection( &path->cs );
return S_OK;
}
@ -494,7 +529,10 @@ static HRESULT WINAPI path_GetNamespaceCount(
TRACE("%p, %p\n", iface, puCount);
if (!puCount) return WBEM_E_INVALID_PARAMETER;
EnterCriticalSection( &path->cs );
*puCount = path->num_namespaces;
LeaveCriticalSection( &path->cs );
return S_OK;
}
@ -513,15 +551,25 @@ static HRESULT WINAPI path_SetNamespaceAt(
TRACE("%p, %u, %s\n", iface, idx, debugstr_w(name));
if (idx > path->num_namespaces || !name) return WBEM_E_INVALID_PARAMETER;
if (!(new = strdupW( name ))) return WBEM_E_OUT_OF_MEMORY;
EnterCriticalSection( &path->cs );
if (idx > path->num_namespaces || !name)
{
LeaveCriticalSection( &path->cs );
return WBEM_E_INVALID_PARAMETER;
}
if (!(new = strdupW( name )))
{
LeaveCriticalSection( &path->cs );
return WBEM_E_OUT_OF_MEMORY;
}
size = (path->num_namespaces + 1) * sizeof(WCHAR *);
if (path->namespaces) tmp = heap_realloc( path->namespaces, size );
else tmp = heap_alloc( size );
if (!tmp)
{
heap_free( new );
LeaveCriticalSection( &path->cs );
return WBEM_E_OUT_OF_MEMORY;
}
path->namespaces = tmp;
@ -531,6 +579,7 @@ static HRESULT WINAPI path_SetNamespaceAt(
if (!tmp_len)
{
heap_free( new );
LeaveCriticalSection( &path->cs );
return WBEM_E_OUT_OF_MEMORY;
}
path->len_namespaces = tmp_len;
@ -543,6 +592,8 @@ static HRESULT WINAPI path_SetNamespaceAt(
path->len_namespaces[idx] = strlenW( new );
path->num_namespaces++;
path->flags |= flags;
LeaveCriticalSection( &path->cs );
return S_OK;
}
@ -556,9 +607,17 @@ static HRESULT WINAPI path_GetNamespaceAt(
TRACE("%p, %u, %p, %p\n", iface, idx, len, name);
if (!len || (*len && !name) || idx >= path->num_namespaces) return WBEM_E_INVALID_PARAMETER;
EnterCriticalSection( &path->cs );
if (!len || (*len && !name) || idx >= path->num_namespaces)
{
LeaveCriticalSection( &path->cs );
return WBEM_E_INVALID_PARAMETER;
}
if (*len > path->len_namespaces[idx]) strcpyW( name, path->namespaces[idx] );
*len = path->len_namespaces[idx] + 1;
LeaveCriticalSection( &path->cs );
return S_OK;
}
@ -570,8 +629,13 @@ static HRESULT WINAPI path_RemoveNamespaceAt(
TRACE("%p, %u\n", iface, idx);
if (idx >= path->num_namespaces) return WBEM_E_INVALID_PARAMETER;
EnterCriticalSection( &path->cs );
if (idx >= path->num_namespaces)
{
LeaveCriticalSection( &path->cs );
return WBEM_E_INVALID_PARAMETER;
}
heap_free( path->namespaces[idx] );
while (idx < path->num_namespaces - 1)
{
@ -580,6 +644,8 @@ static HRESULT WINAPI path_RemoveNamespaceAt(
idx++;
}
path->num_namespaces--;
LeaveCriticalSection( &path->cs );
return S_OK;
}
@ -591,12 +657,16 @@ static HRESULT WINAPI path_RemoveAllNamespaces(
TRACE("%p\n", iface);
EnterCriticalSection( &path->cs );
for (i = 0; i < path->num_namespaces; i++) heap_free( path->namespaces[i] );
path->num_namespaces = 0;
heap_free( path->namespaces );
path->namespaces = NULL;
heap_free( path->len_namespaces );
path->len_namespaces = NULL;
LeaveCriticalSection( &path->cs );
return S_OK;
}
@ -672,12 +742,16 @@ static HRESULT WINAPI path_SetClassName(
TRACE("%p, %s\n", iface, debugstr_w(name));
if (!name) return WBEM_E_INVALID_PARAMETER;
if (!(class = strdupW( name ))) return WBEM_E_OUT_OF_MEMORY;
EnterCriticalSection( &path->cs );
heap_free( path->class );
path->class = class;
path->len_class = strlenW( path->class );
path->flags |= WBEMPATH_INFO_V2_COMPLIANT | WBEMPATH_INFO_CIM_COMPLIANT;
LeaveCriticalSection( &path->cs );
return S_OK;
}
@ -691,9 +765,18 @@ static HRESULT WINAPI path_GetClassName(
TRACE("%p, %p, %p\n", iface, len, name);
if (!len || (*len && !name)) return WBEM_E_INVALID_PARAMETER;
if (!path->class) return WBEM_E_INVALID_OBJECT_PATH;
EnterCriticalSection( &path->cs );
if (!path->class)
{
LeaveCriticalSection( &path->cs );
return WBEM_E_INVALID_OBJECT_PATH;
}
if (*len > path->len_class) strcpyW( name, path->class );
*len = path->len_class + 1;
LeaveCriticalSection( &path->cs );
return S_OK;
}
@ -800,6 +883,8 @@ HRESULT WbemPath_create( IUnknown *pUnkOuter, LPVOID *ppObj )
path->IWbemPath_iface.lpVtbl = &path_vtbl;
path->refs = 1;
InitializeCriticalSection( &path->cs );
path->cs.DebugInfo->Spare[0] = (DWORD_PTR)(__FILE__ ": wmiutils_path.cs");
init_path( path );
*ppObj = &path->IWbemPath_iface;