mirror of
git://source.winehq.org/git/wine.git
synced 2024-11-01 12:06:32 +00:00
msxml3/mxwriter: Flush internal buffer as soon as it's filled.
Signed-off-by: Nikolay Sivov <nsivov@codeweavers.com> Signed-off-by: Alexandre Julliard <julliard@winehq.org>
This commit is contained in:
Nikolay Sivov
Alexandre Julliard
parent
67efaac30f
commit
737d90c21c
1 changed files with 109 additions and 119 deletions
|
|
@ -97,13 +97,6 @@ static const struct xml_encoding_data xml_encoding_map[] = {
|
|||
{ utf8W, XmlEncoding_UTF8, CP_UTF8 }
|
||||
};
|
||||
|
||||
typedef enum
|
||||
{
|
||||
OutputBuffer_Native = 0x001,
|
||||
OutputBuffer_Encoded = 0x010,
|
||||
OutputBuffer_Both = 0x100
|
||||
} output_mode;
|
||||
|
||||
typedef enum
|
||||
{
|
||||
MXWriter_BOM = 0,
|
||||
|
|
@ -130,7 +123,6 @@ typedef struct
|
|||
|
||||
typedef struct
|
||||
{
|
||||
encoded_buffer utf16;
|
||||
encoded_buffer encoded;
|
||||
UINT code_page;
|
||||
UINT utf16_total; /* total number of bytes written since last buffer reinitialization */
|
||||
|
|
@ -173,7 +165,6 @@ typedef struct
|
|||
BSTR element;
|
||||
|
||||
IStream *dest;
|
||||
ULONG dest_written;
|
||||
|
||||
output_buffer buffer;
|
||||
} mxwriter;
|
||||
|
|
@ -293,21 +284,10 @@ static HRESULT init_output_buffer(xml_encoding encoding, output_buffer *buffer)
|
|||
if (hr != S_OK)
|
||||
return hr;
|
||||
|
||||
hr = init_encoded_buffer(&buffer->utf16);
|
||||
hr = init_encoded_buffer(&buffer->encoded);
|
||||
if (hr != S_OK)
|
||||
return hr;
|
||||
|
||||
/* currently we always create a default output buffer that is UTF-16 only,
|
||||
but it's possible to allocate with specific encoding too */
|
||||
if (encoding != XmlEncoding_UTF16) {
|
||||
hr = init_encoded_buffer(&buffer->encoded);
|
||||
if (hr != S_OK) {
|
||||
free_encoded_buffer(&buffer->utf16);
|
||||
return hr;
|
||||
}
|
||||
}
|
||||
else
|
||||
memset(&buffer->encoded, 0, sizeof(buffer->encoded));
|
||||
list_init(&buffer->blocks);
|
||||
buffer->utf16_total = 0;
|
||||
|
||||
|
|
@ -319,7 +299,6 @@ static void free_output_buffer(output_buffer *buffer)
|
|||
encoded_buffer *cur, *cur2;
|
||||
|
||||
free_encoded_buffer(&buffer->encoded);
|
||||
free_encoded_buffer(&buffer->utf16);
|
||||
|
||||
LIST_FOR_EACH_ENTRY_SAFE(cur, cur2, &buffer->blocks, encoded_buffer, entry)
|
||||
{
|
||||
|
|
@ -329,23 +308,93 @@ static void free_output_buffer(output_buffer *buffer)
|
|||
}
|
||||
}
|
||||
|
||||
static void grow_buffer(encoded_buffer *buffer, int length)
|
||||
{
|
||||
/* grow if needed, plus 4 bytes to be sure null terminator will fit in */
|
||||
if (buffer->allocated < buffer->written + length + 4)
|
||||
{
|
||||
int grown_size = max(2*buffer->allocated, buffer->allocated + length);
|
||||
buffer->data = heap_realloc(buffer->data, grown_size);
|
||||
buffer->allocated = grown_size;
|
||||
}
|
||||
}
|
||||
|
||||
static HRESULT write_output_buffer_mode(mxwriter *writer, output_mode mode, const WCHAR *data, int len)
|
||||
static HRESULT write_output_buffer(mxwriter *writer, const WCHAR *data, int len)
|
||||
{
|
||||
output_buffer *buffer = &writer->buffer;
|
||||
int length;
|
||||
char *ptr;
|
||||
encoded_buffer *buff;
|
||||
unsigned int written;
|
||||
int src_len;
|
||||
|
||||
if (!len || !*data)
|
||||
return S_OK;
|
||||
|
||||
src_len = len == -1 ? strlenW(data) : len;
|
||||
if (writer->dest)
|
||||
{
|
||||
buff = &buffer->encoded;
|
||||
|
||||
if (buffer->code_page == ~0)
|
||||
{
|
||||
unsigned int avail = buff->allocated - buff->written;
|
||||
|
||||
src_len *= sizeof(WCHAR);
|
||||
written = min(avail, src_len);
|
||||
|
||||
/* fill internal buffer first */
|
||||
if (avail)
|
||||
{
|
||||
memcpy(buff->data + buff->written, data, written);
|
||||
data += written / sizeof(WCHAR);
|
||||
buff->written += written;
|
||||
avail -= written;
|
||||
src_len -= written;
|
||||
}
|
||||
|
||||
if (!avail)
|
||||
{
|
||||
IStream_Write(writer->dest, buff->data, buff->written, &written);
|
||||
buff->written = 0;
|
||||
if (src_len >= buff->allocated)
|
||||
IStream_Write(writer->dest, data, src_len, &written);
|
||||
else if (src_len)
|
||||
{
|
||||
memcpy(buff->data, data, src_len);
|
||||
buff->written += src_len;
|
||||
}
|
||||
}
|
||||
}
|
||||
else
|
||||
{
|
||||
unsigned int avail = buff->allocated - buff->written;
|
||||
int length;
|
||||
|
||||
length = WideCharToMultiByte(buffer->code_page, 0, data, src_len, NULL, 0, NULL, NULL);
|
||||
if (avail >= length)
|
||||
{
|
||||
length = WideCharToMultiByte(buffer->code_page, 0, data, src_len, buff->data + buff->written, length, NULL, NULL);
|
||||
buff->written += length;
|
||||
}
|
||||
else
|
||||
{
|
||||
/* drain what we go so far */
|
||||
if (buff->written)
|
||||
{
|
||||
IStream_Write(writer->dest, buff->data, buff->written, &written);
|
||||
buff->written = 0;
|
||||
avail = buff->allocated;
|
||||
}
|
||||
|
||||
if (avail >= length)
|
||||
{
|
||||
length = WideCharToMultiByte(buffer->code_page, 0, data, src_len, buff->data + buff->written, length, NULL, NULL);
|
||||
buff->written += length;
|
||||
}
|
||||
else
|
||||
{
|
||||
char *mb;
|
||||
|
||||
/* if current chunk is larger than total buffer size, convert it at once using temporary allocated buffer */
|
||||
mb = heap_alloc(length);
|
||||
if (!mb)
|
||||
return E_OUTOFMEMORY;
|
||||
|
||||
length = WideCharToMultiByte(buffer->code_page, 0, data, src_len, mb, length, NULL, NULL);
|
||||
IStream_Write(writer->dest, mb, length, &written);
|
||||
heap_free(mb);
|
||||
}
|
||||
}
|
||||
}
|
||||
}
|
||||
/* When writer has no output set we have to accumulate everything to return it later in a form of BSTR.
|
||||
To achieve that:
|
||||
|
||||
|
|
@ -354,33 +403,30 @@ static HRESULT write_output_buffer_mode(mxwriter *writer, output_mode mode, cons
|
|||
but are linked together, with head pointing to first allocated buffer after initial one got filled;
|
||||
- later during get_output() contents are concatenated by copying one after another to destination BSTR buffer,
|
||||
that's returned to the client. */
|
||||
if (!writer->dest && (mode & (OutputBuffer_Native | OutputBuffer_Both)))
|
||||
else
|
||||
{
|
||||
encoded_buffer *buff;
|
||||
|
||||
/* select last used block */
|
||||
if (list_empty(&buffer->blocks))
|
||||
buff = &buffer->utf16;
|
||||
buff = &buffer->encoded;
|
||||
else
|
||||
buff = LIST_ENTRY(list_tail(&buffer->blocks), encoded_buffer, entry);
|
||||
|
||||
length = (len == -1 ? strlenW(data) : len) * sizeof(WCHAR);
|
||||
|
||||
while (length)
|
||||
src_len *= sizeof(WCHAR);
|
||||
while (src_len)
|
||||
{
|
||||
unsigned int avail = buff->allocated - buff->written;
|
||||
unsigned int written = min(avail, length);
|
||||
unsigned int written = min(avail, src_len);
|
||||
|
||||
if (avail)
|
||||
{
|
||||
memcpy(buff->data + buff->written, data, written);
|
||||
buff->written += written;
|
||||
buffer->utf16_total += written;
|
||||
length -= written;
|
||||
src_len -= written;
|
||||
}
|
||||
|
||||
/* alloc new block if needed and retry */
|
||||
if (length)
|
||||
if (src_len)
|
||||
{
|
||||
encoded_buffer *next = heap_alloc(sizeof(*next));
|
||||
HRESULT hr;
|
||||
|
|
@ -394,47 +440,11 @@ static HRESULT write_output_buffer_mode(mxwriter *writer, output_mode mode, cons
|
|||
buff = next;
|
||||
}
|
||||
}
|
||||
|
||||
return S_OK;
|
||||
}
|
||||
|
||||
if (mode & (OutputBuffer_Encoded | OutputBuffer_Both)) {
|
||||
if (buffer->code_page != ~0)
|
||||
{
|
||||
length = WideCharToMultiByte(buffer->code_page, 0, data, len, NULL, 0, NULL, NULL);
|
||||
grow_buffer(&buffer->encoded, length);
|
||||
ptr = buffer->encoded.data + buffer->encoded.written;
|
||||
length = WideCharToMultiByte(buffer->code_page, 0, data, len, ptr, length, NULL, NULL);
|
||||
buffer->encoded.written += len == -1 ? length-1 : length;
|
||||
}
|
||||
}
|
||||
|
||||
if (mode & (OutputBuffer_Native | OutputBuffer_Both)) {
|
||||
/* WCHAR data just copied */
|
||||
length = len == -1 ? strlenW(data) : len;
|
||||
if (length)
|
||||
{
|
||||
length *= sizeof(WCHAR);
|
||||
|
||||
grow_buffer(&buffer->utf16, length);
|
||||
ptr = buffer->utf16.data + buffer->utf16.written;
|
||||
|
||||
memcpy(ptr, data, length);
|
||||
buffer->utf16.written += length;
|
||||
ptr += length;
|
||||
/* null termination */
|
||||
memset(ptr, 0, sizeof(WCHAR));
|
||||
}
|
||||
}
|
||||
|
||||
return S_OK;
|
||||
}
|
||||
|
||||
static HRESULT write_output_buffer(mxwriter *writer, const WCHAR *data, int len)
|
||||
{
|
||||
return write_output_buffer_mode(writer, OutputBuffer_Both, data, len);
|
||||
}
|
||||
|
||||
static HRESULT write_output_buffer_quoted(mxwriter *writer, const WCHAR *data, int len)
|
||||
{
|
||||
write_output_buffer(writer, quotW, 1);
|
||||
|
|
@ -449,7 +459,6 @@ static void close_output_buffer(mxwriter *writer)
|
|||
{
|
||||
encoded_buffer *cur, *cur2;
|
||||
|
||||
heap_free(writer->buffer.utf16.data);
|
||||
heap_free(writer->buffer.encoded.data);
|
||||
|
||||
LIST_FOR_EACH_ENTRY_SAFE(cur, cur2, &writer->buffer.blocks, encoded_buffer, entry)
|
||||
|
|
@ -459,7 +468,6 @@ static void close_output_buffer(mxwriter *writer)
|
|||
heap_free(cur);
|
||||
}
|
||||
|
||||
init_encoded_buffer(&writer->buffer.utf16);
|
||||
init_encoded_buffer(&writer->buffer.encoded);
|
||||
get_code_page(writer->xml_enc, &writer->buffer.code_page);
|
||||
writer->buffer.utf16_total = 0;
|
||||
|
|
@ -553,9 +561,10 @@ static void write_prolog_buffer(mxwriter *writer)
|
|||
/* encoding */
|
||||
write_output_buffer(writer, encodingW, sizeof(encodingW)/sizeof(WCHAR));
|
||||
|
||||
/* always write UTF-16 to WCHAR buffer */
|
||||
write_output_buffer_mode(writer, OutputBuffer_Native, utf16W, sizeof(utf16W)/sizeof(WCHAR) - 1);
|
||||
write_output_buffer_mode(writer, OutputBuffer_Encoded, writer->encoding, -1);
|
||||
if (writer->dest)
|
||||
write_output_buffer(writer, writer->encoding, -1);
|
||||
else
|
||||
write_output_buffer(writer, utf16W, sizeof(utf16W)/sizeof(WCHAR) - 1);
|
||||
write_output_buffer(writer, quotW, 1);
|
||||
|
||||
/* standalone */
|
||||
|
|
@ -572,43 +581,26 @@ static void write_prolog_buffer(mxwriter *writer)
|
|||
/* Attempts to the write data from the mxwriter's buffer to
|
||||
* the destination stream (if there is one).
|
||||
*/
|
||||
static HRESULT write_data_to_stream(mxwriter *This)
|
||||
static HRESULT write_data_to_stream(mxwriter *writer)
|
||||
{
|
||||
encoded_buffer *buffer;
|
||||
encoded_buffer *buffer = &writer->buffer.encoded;
|
||||
ULONG written = 0;
|
||||
HRESULT hr;
|
||||
|
||||
if (!This->dest)
|
||||
if (!writer->dest)
|
||||
return S_OK;
|
||||
|
||||
if (This->xml_enc != XmlEncoding_UTF16)
|
||||
buffer = &This->buffer.encoded;
|
||||
if (buffer->written == 0)
|
||||
{
|
||||
if (writer->xml_enc == XmlEncoding_UTF8)
|
||||
IStream_Write(writer->dest, buffer->data, 0, &written);
|
||||
}
|
||||
else
|
||||
buffer = &This->buffer.utf16;
|
||||
|
||||
if (This->dest_written > buffer->written) {
|
||||
ERR("Failed sanity check! Not sure what to do... (%d > %d)\n", This->dest_written, buffer->written);
|
||||
return E_FAIL;
|
||||
} else if (This->dest_written == buffer->written && This->xml_enc != XmlEncoding_UTF8)
|
||||
/* Windows seems to make an empty write call when the encoding is UTF-8 and
|
||||
* all the data has been written to the stream. It doesn't seem make this call
|
||||
* for any other encodings.
|
||||
*/
|
||||
return S_OK;
|
||||
|
||||
/* Write the current content from the output buffer into 'dest'.
|
||||
* TODO: Check what Windows does if the IStream doesn't write all of
|
||||
* the data we give it at once.
|
||||
*/
|
||||
hr = IStream_Write(This->dest, buffer->data+This->dest_written,
|
||||
buffer->written-This->dest_written, &written);
|
||||
if (FAILED(hr)) {
|
||||
WARN("Failed to write data to IStream (0x%08x)\n", hr);
|
||||
return hr;
|
||||
{
|
||||
IStream_Write(writer->dest, buffer->data, buffer->written, &written);
|
||||
buffer->written = 0;
|
||||
}
|
||||
|
||||
This->dest_written += written;
|
||||
return hr;
|
||||
return S_OK;
|
||||
}
|
||||
|
||||
/* Newly added element start tag left unclosed cause for empty elements
|
||||
|
|
@ -678,7 +670,6 @@ static inline HRESULT flush_output_buffer(mxwriter *This)
|
|||
static inline void reset_output_buffer(mxwriter *This)
|
||||
{
|
||||
close_output_buffer(This);
|
||||
This->dest_written = 0;
|
||||
}
|
||||
|
||||
static HRESULT writer_set_property(mxwriter *writer, mxwriter_prop property, VARIANT_BOOL value)
|
||||
|
|
@ -967,7 +958,7 @@ static HRESULT WINAPI mxwriter_get_output(IMXWriter *iface, VARIANT *dest)
|
|||
return E_OUTOFMEMORY;
|
||||
|
||||
dest_ptr = (char*)V_BSTR(dest);
|
||||
buff = &This->buffer.utf16;
|
||||
buff = &This->buffer.encoded;
|
||||
|
||||
if (buff->written)
|
||||
{
|
||||
|
|
@ -2607,7 +2598,6 @@ HRESULT MXWriter_create(MSXML_VERSION version, void **ppObj)
|
|||
This->newline = FALSE;
|
||||
|
||||
This->dest = NULL;
|
||||
This->dest_written = 0;
|
||||
|
||||
hr = init_output_buffer(This->xml_enc, &This->buffer);
|
||||
if (hr != S_OK) {
|
||||
|
|
|
|||
Loading…
Reference in a new issue