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buffer
Synopsis
enum xmlSecAllocMode;
struct xmlSecBuffer;
void xmlSecBufferSetDefaultAllocMode (xmlSecAllocMode defAllocMode,
xmlSecSize defInitialSize);
xmlSecBufferPtr xmlSecBufferCreate (xmlSecSize size);
void xmlSecBufferDestroy (xmlSecBufferPtr buf);
int xmlSecBufferInitialize (xmlSecBufferPtr buf,
xmlSecSize size);
void xmlSecBufferFinalize (xmlSecBufferPtr buf);
xmlSecByte* xmlSecBufferGetData (xmlSecBufferPtr buf);
int xmlSecBufferSetData (xmlSecBufferPtr buf,
const xmlSecByte *data,
xmlSecSize size);
xmlSecSize xmlSecBufferGetSize (xmlSecBufferPtr buf);
int xmlSecBufferSetSize (xmlSecBufferPtr buf,
xmlSecSize size);
xmlSecSize xmlSecBufferGetMaxSize (xmlSecBufferPtr buf);
int xmlSecBufferSetMaxSize (xmlSecBufferPtr buf,
xmlSecSize size);
void xmlSecBufferEmpty (xmlSecBufferPtr buf);
int xmlSecBufferAppend (xmlSecBufferPtr buf,
const xmlSecByte *data,
xmlSecSize size);
int xmlSecBufferPrepend (xmlSecBufferPtr buf,
const xmlSecByte *data,
xmlSecSize size);
int xmlSecBufferRemoveHead (xmlSecBufferPtr buf,
xmlSecSize size);
int xmlSecBufferRemoveTail (xmlSecBufferPtr buf,
xmlSecSize size);
int xmlSecBufferReadFile (xmlSecBufferPtr buf,
const char *filename);
int xmlSecBufferBase64NodeContentRead
(xmlSecBufferPtr buf,
xmlNodePtr node);
int xmlSecBufferBase64NodeContentWrite
(xmlSecBufferPtr buf,
xmlNodePtr node,
int columns);
xmlOutputBufferPtr xmlSecBufferCreateOutputBuffer
(xmlSecBufferPtr buf); |
Details
enum xmlSecAllocMode
typedef enum {
xmlSecAllocModeExact = 0,
xmlSecAllocModeDouble
} xmlSecAllocMode; |
The memory allocation mode (used by xmlSecBuffer and xmlSecList).
struct xmlSecBuffer
struct xmlSecBuffer {
xmlSecByte* data;
xmlSecSize size;
xmlSecSize maxSize;
xmlSecAllocMode allocMode;
}; |
Binary data buffer.
xmlSecBufferSetDefaultAllocMode ()
Sets new global default allocation mode and minimal intial size.
xmlSecBufferCreate ()
Allocates and initalizes new memory buffer with given size.
Caller is responsible for calling xmlSecBufferDestroy function
to free the buffer.
size : |
the intial size. |
Returns : |
pointer to newly allocated buffer or NULL if an error occurs. |
xmlSecBufferDestroy ()
Desrtoys buffer object created with xmlSecBufferCreate function.
buf : |
the pointer to buffer object. |
xmlSecBufferInitialize ()
Initializes buffer object buf. Caller is responsible for calling
xmlSecBufferFinalize function to free allocated resources.
buf : |
the pointer to buffer object. |
size : |
the initial buffer size. |
Returns : |
0 on success or a negative value if an error occurs. |
xmlSecBufferFinalize ()
Frees allocated resource for a buffer intialized with xmlSecBufferInitialize
function.
buf : |
the pointer to buffer object. |
xmlSecBufferGetData ()
Gets pointer to buffer's data.
buf : |
the pointer to buffer object. |
Returns : |
pointer to buffer's data. |
xmlSecBufferSetData ()
Sets the value of the buffer to data.
buf : |
the pointer to buffer object. |
data : |
the data. |
size : |
the data size. |
Returns : |
0 on success or a negative value if an error occurs. |
xmlSecBufferGetSize ()
Gets the current buffer data size.
xmlSecBufferSetSize ()
Sets new buffer data size. If necessary, buffer grows to
have at least size bytes.
buf : |
the pointer to buffer object. |
size : |
the new data size. |
Returns : |
0 on success or a negative value if an error occurs. |
xmlSecBufferGetMaxSize ()
Gets the maximum (allocated) buffer size.
buf : |
the pointer to buffer object. |
Returns : |
the maximum (allocated) buffer size. |
xmlSecBufferSetMaxSize ()
Sets new buffer maximum size. If necessary, buffer grows to
have at least size bytes.
buf : |
the pointer to buffer object. |
size : |
the new maximum size. |
Returns : |
0 on success or a negative value if an error occurs. |
xmlSecBufferEmpty ()
Empties the buffer.
buf : |
the pointer to buffer object. |
xmlSecBufferAppend ()
Appends the data after the current data stored in the buffer.
buf : |
the pointer to buffer object. |
data : |
the data. |
size : |
the data size. |
Returns : |
0 on success or a negative value if an error occurs. |
xmlSecBufferPrepend ()
Prepends the data before the current data stored in the buffer.
buf : |
the pointer to buffer object. |
data : |
the data. |
size : |
the data size. |
Returns : |
0 on success or a negative value if an error occurs. |
xmlSecBufferRemoveHead ()
Removes size bytes from the beginning of the current buffer.
buf : |
the pointer to buffer object. |
size : |
the number of bytes to be removed. |
Returns : |
0 on success or a negative value if an error occurs. |
xmlSecBufferRemoveTail ()
Removes size bytes from the end of current buffer.
buf : |
the pointer to buffer object. |
size : |
the number of bytes to be removed. |
Returns : |
0 on success or a negative value if an error occurs. |
xmlSecBufferReadFile ()
Reads the content of the file filename in the buffer.
buf : |
the pointer to buffer object. |
filename : |
the filename. |
Returns : |
0 on success or a negative value if an error occurs. |
xmlSecBufferBase64NodeContentRead ()
int xmlSecBufferBase64NodeContentRead
(xmlSecBufferPtr buf,
xmlNodePtr node); |
Reads the content of the node, base64 decodes it and stores the
result in the buffer.
buf : |
the pointer to buffer object. |
node : |
the pointer to node. |
Returns : |
0 on success or a negative value if an error occurs. |
xmlSecBufferBase64NodeContentWrite ()
int xmlSecBufferBase64NodeContentWrite
(xmlSecBufferPtr buf,
xmlNodePtr node,
int columns); |
Sets the content of the node to the base64 encoded buffer data.
buf : |
the pointer to buffer object. |
node : |
the pointer to a node. |
columns : |
the max line size fro base64 encoded data. |
Returns : |
0 on success or a negative value if an error occurs. |
xmlSecBufferCreateOutputBuffer ()
Creates new LibXML output buffer to store data in the buf. Caller is
responsible for destroying buf when processing is done.
buf : |
the pointer to buffer. |
Returns : |
pointer to newly allocated output buffer or NULL if an error
occurs. |
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Aleksey Sanin
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