mirror of https://gitee.com/bigwinds/arangodb
146 lines
4.6 KiB
C
146 lines
4.6 KiB
C
////////////////////////////////////////////////////////////////////////////////
|
|
/// @brief query memory helper functions
|
|
///
|
|
/// @file
|
|
///
|
|
/// DISCLAIMER
|
|
///
|
|
/// Copyright 2010-2012 triagens GmbH, Cologne, Germany
|
|
///
|
|
/// Licensed under the Apache License, Version 2.0 (the "License");
|
|
/// you may not use this file except in compliance with the License.
|
|
/// You may obtain a copy of the License at
|
|
///
|
|
/// http://www.apache.org/licenses/LICENSE-2.0
|
|
///
|
|
/// Unless required by applicable law or agreed to in writing, software
|
|
/// distributed under the License is distributed on an "AS IS" BASIS,
|
|
/// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
|
|
/// See the License for the specific language governing permissions and
|
|
/// limitations under the License.
|
|
///
|
|
/// Copyright holder is triAGENS GmbH, Cologne, Germany
|
|
///
|
|
/// @author Jan Steemann
|
|
/// @author Copyright 2012, triagens GmbH, Cologne, Germany
|
|
////////////////////////////////////////////////////////////////////////////////
|
|
|
|
#include "VocBase/query-memory.h"
|
|
|
|
////////////////////////////////////////////////////////////////////////////////
|
|
/// @addtogroup VocBase
|
|
/// @{
|
|
////////////////////////////////////////////////////////////////////////////////
|
|
|
|
////////////////////////////////////////////////////////////////////////////////
|
|
/// @brief Create a new node for the AST and register it
|
|
////////////////////////////////////////////////////////////////////////////////
|
|
|
|
TRI_query_node_t* TRI_CreateNodeQuery (TRI_vector_pointer_t* memory,
|
|
const TRI_query_node_type_e type) {
|
|
// allocate memory
|
|
TRI_query_node_t* node = (TRI_query_node_t *) TRI_Allocate(sizeof(TRI_query_node_t));
|
|
if (!node) {
|
|
return NULL;
|
|
}
|
|
|
|
// keep track of memory location
|
|
TRI_RegisterNodeQuery(memory, node);
|
|
|
|
// set node type
|
|
node->_type = type;
|
|
|
|
// set initial pointers to nil
|
|
node->_value._stringValue = NULL;
|
|
node->_lhs = NULL;
|
|
node->_rhs = NULL;
|
|
node->_next = NULL;
|
|
|
|
return node;
|
|
}
|
|
|
|
////////////////////////////////////////////////////////////////////////////////
|
|
/// @brief Register a string pointer in memory
|
|
////////////////////////////////////////////////////////////////////////////////
|
|
|
|
void TRI_RegisterStringQuery (TRI_vector_pointer_t* memory,
|
|
const char* const string) {
|
|
TRI_PushBackVectorPointer(memory, (void*) string);
|
|
}
|
|
|
|
////////////////////////////////////////////////////////////////////////////////
|
|
/// @brief Register a node pointer in memory
|
|
////////////////////////////////////////////////////////////////////////////////
|
|
|
|
void TRI_RegisterNodeQuery (TRI_vector_pointer_t* memory,
|
|
const TRI_query_node_t* const node) {
|
|
TRI_PushBackVectorPointer(memory, (void*) node);
|
|
}
|
|
|
|
////////////////////////////////////////////////////////////////////////////////
|
|
/// @brief Free a node
|
|
////////////////////////////////////////////////////////////////////////////////
|
|
|
|
void TRI_FreeNodeQuery (TRI_query_node_t* node) {
|
|
if (node) {
|
|
TRI_Free(node);
|
|
node = NULL;
|
|
}
|
|
}
|
|
|
|
////////////////////////////////////////////////////////////////////////////////
|
|
/// @brief Free a node vector
|
|
////////////////////////////////////////////////////////////////////////////////
|
|
|
|
void TRI_FreeNodeVectorQuery (TRI_vector_pointer_t* const memory) {
|
|
void* nodePtr;
|
|
size_t i;
|
|
|
|
i = memory->_length;
|
|
// free all nodes in vector, starting at the end
|
|
// (prevents copying the remaining elements in vector)
|
|
while (i > 0) {
|
|
i--;
|
|
nodePtr = TRI_RemoveVectorPointer(memory, i);
|
|
TRI_FreeNodeQuery(nodePtr);
|
|
if (i == 0) {
|
|
break;
|
|
}
|
|
}
|
|
TRI_DestroyVectorPointer(memory);
|
|
}
|
|
|
|
////////////////////////////////////////////////////////////////////////////////
|
|
/// @brief Free a string vector
|
|
////////////////////////////////////////////////////////////////////////////////
|
|
|
|
void TRI_FreeStringVectorQuery (TRI_vector_pointer_t* const memory) {
|
|
char* stringPtr;
|
|
size_t i;
|
|
|
|
i = memory->_length;
|
|
// free all strings in vector, starting at the end
|
|
// (prevents copying the remaining elements in vector)
|
|
while (i > 0) {
|
|
i--;
|
|
stringPtr = TRI_RemoveVectorPointer(memory, i);
|
|
if (stringPtr) {
|
|
TRI_Free(stringPtr);
|
|
stringPtr = NULL;
|
|
}
|
|
if (i == 0) {
|
|
break;
|
|
}
|
|
}
|
|
TRI_DestroyVectorPointer(memory);
|
|
}
|
|
|
|
////////////////////////////////////////////////////////////////////////////////
|
|
/// @}
|
|
////////////////////////////////////////////////////////////////////////////////
|
|
|
|
// Local Variables:
|
|
// mode: outline-minor
|
|
// outline-regexp: "^\\(/// @brief\\|/// {@inheritDoc}\\|/// @addtogroup\\|// --SECTION--\\|/// @\\}\\)"
|
|
// End:
|