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authorDaniel Veillard <veillard@src.gnome.org>2003-09-18 13:35:51 +0000
committerDaniel Veillard <veillard@src.gnome.org>2003-09-18 13:35:51 +0000
commit5335055ef698595d4a4b7e4613fd057a45166849 (patch)
tree8a5ce975a3904b6a79d4db02b261693bdeb79359
parentc44cfdd7c16cd44f1508258a5b9917bcde05a458 (diff)
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add streaming on memory regression tests, found bad bugs in the reader
* Makefile.am: add streaming on memory regression tests, found bad bugs in the reader interface * xmlreader.c: fixing bugs w.r.t. very large names, and special condition in end of file. * xmlIO.c tree.c include/libxml/tree.h include/libxml/xmlIO.h: adding immutable buffers, and parser input based on those, but this should not be used (yet) for general parsing * parser.c: added a comment about using immutable buffers for general parsing. * result/bigname.xml.rdr result/bigname2.xml.rdr: fixing the output of the regression tests * xmllint.c: using the immutable buffers when streaming on mmaped file (--stream --memory) Daniel
-rw-r--r--ChangeLog16
-rw-r--r--Makefile.am17
-rw-r--r--include/libxml/tree.h6
-rw-r--r--include/libxml/xmlIO.h3
-rw-r--r--parser.c1
-rw-r--r--result/bigname.xml.rdr2
-rw-r--r--result/bigname2.xml.rdr2
-rw-r--r--tree.c64
-rw-r--r--xmlIO.c49
-rw-r--r--xmllint.c2
-rw-r--r--xmlreader.c21
11 files changed, 169 insertions, 14 deletions
diff --git a/ChangeLog b/ChangeLog
index fe3181a1..82cb3c00 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,3 +1,19 @@
+Thu Sep 18 15:29:46 CEST 2003 Daniel Veillard <daniel@veillard.com>
+
+ * Makefile.am: add streaming on memory regression tests, found
+ bad bugs in the reader interface
+ * xmlreader.c: fixing bugs w.r.t. very large names, and special
+ condition in end of file.
+ * xmlIO.c tree.c include/libxml/tree.h include/libxml/xmlIO.h:
+ adding immutable buffers, and parser input based on those,
+ but this should not be used (yet) for general parsing
+ * parser.c: added a comment about using immutable buffers for
+ general parsing.
+ * result/bigname.xml.rdr result/bigname2.xml.rdr: fixing the
+ output of the regression tests
+ * xmllint.c: using the immutable buffers when streaming on
+ mmaped file (--stream --memory)
+
Thu Sep 18 12:04:50 CEST 2003 Daniel Veillard <daniel@veillard.com>
* dict.c: the last patch broke unicity of returned strings, removed
diff --git a/Makefile.am b/Makefile.am
index 4f3f04b0..9951dbb4 100644
--- a/Makefile.am
+++ b/Makefile.am
@@ -588,6 +588,23 @@ Readertests : xmllint$(EXEEXT)
diff $(srcdir)/result/$$name.rdr result.$$name ; \
rm result.$$name ; \
fi ; fi ; done)
+ @echo "##"
+ @echo "## Reader on memory regression tests"
+ @echo "##"
+ -@(for i in $(srcdir)/test/* ; do \
+ name=`basename $$i`; \
+ if [ ! -d $$i ] ; then \
+ if [ ! -f $(srcdir)/result/$$name.rdr ] ; then \
+ echo New test file $$name ; \
+ $(CHECKER) $(top_builddir)/xmllint --memory --nonet --debug --stream $$i > $(srcdir)/result/$$name.rdr 2>/dev/null ; \
+ grep "MORY ALLO" .memdump | grep -v "MEMORY ALLOCATED : 0";\
+ else \
+ echo Testing $$name ; \
+ $(CHECKER) $(top_builddir)/xmllint --memory --nonet --debug --stream $$i > result.$$name 2>/dev/null ; \
+ grep "MORY ALLO" .memdump | grep -v "MEMORY ALLOCATED : 0";\
+ diff $(srcdir)/result/$$name.rdr result.$$name ; \
+ rm result.$$name ; \
+ fi ; fi ; done)
SAXtests : testSAX$(EXEEXT)
diff --git a/include/libxml/tree.h b/include/libxml/tree.h
index 9a236a4a..5ead191a 100644
--- a/include/libxml/tree.h
+++ b/include/libxml/tree.h
@@ -416,7 +416,8 @@ struct _xmlRef {
typedef enum {
XML_BUFFER_ALLOC_DOUBLEIT,
- XML_BUFFER_ALLOC_EXACT
+ XML_BUFFER_ALLOC_EXACT,
+ XML_BUFFER_ALLOC_IMMUTABLE
} xmlBufferAllocationScheme;
/**
@@ -581,6 +582,9 @@ XMLPUBFUN xmlBufferPtr XMLCALL
xmlBufferCreate (void);
XMLPUBFUN xmlBufferPtr XMLCALL
xmlBufferCreateSize (size_t size);
+XMLPUBFUN xmlBufferPtr XMLCALL
+ xmlBufferCreateStatic (void *mem,
+ size_t size);
XMLPUBFUN int XMLCALL
xmlBufferResize (xmlBufferPtr buf,
unsigned int size);
diff --git a/include/libxml/xmlIO.h b/include/libxml/xmlIO.h
index 9d182a65..244c950f 100644
--- a/include/libxml/xmlIO.h
+++ b/include/libxml/xmlIO.h
@@ -171,6 +171,9 @@ XMLPUBFUN xmlParserInputBufferPtr XMLCALL
xmlParserInputBufferCreateMem (const char *mem, int size,
xmlCharEncoding enc);
XMLPUBFUN xmlParserInputBufferPtr XMLCALL
+ xmlParserInputBufferCreateStatic (const char *mem, int size,
+ xmlCharEncoding enc);
+XMLPUBFUN xmlParserInputBufferPtr XMLCALL
xmlParserInputBufferCreateIO (xmlInputReadCallback ioread,
xmlInputCloseCallback ioclose,
void *ioctx,
diff --git a/parser.c b/parser.c
index 0840de33..d83b484d 100644
--- a/parser.c
+++ b/parser.c
@@ -11568,6 +11568,7 @@ xmlCreateMemoryParserCtxt(const char *buffer, int size) {
if (ctxt == NULL)
return(NULL);
+ /* TODO: xmlParserInputBufferCreateStatic, requires some serious changes */
buf = xmlParserInputBufferCreateMem(buffer, size, XML_CHAR_ENCODING_NONE);
if (buf == NULL) {
xmlFreeParserCtxt(ctxt);
diff --git a/result/bigname.xml.rdr b/result/bigname.xml.rdr
index eb09bd4c..71284c1e 100644
--- a/result/bigname.xml.rdr
+++ b/result/bigname.xml.rdr
@@ -1 +1 @@
-./test/bigname.xml : failed to parse
+0 1 this_is_a_very_large_name_012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123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1 0
diff --git a/result/bigname2.xml.rdr b/result/bigname2.xml.rdr
index 70309a32..6de9dd76 100644
--- a/result/bigname2.xml.rdr
+++ b/result/bigname2.xml.rdr
@@ -1 +1 @@
-./test/bigname2.xml : failed to parse
+0 1 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1 0
diff --git a/tree.c b/tree.c
index 40764b48..0e4a6f42 100644
--- a/tree.c
+++ b/tree.c
@@ -6333,6 +6333,37 @@ xmlBufferCreateSize(size_t size) {
}
/**
+ * xmlBufferCreateStatic:
+ * @mem: the memory area
+ * @size: the size in byte
+ *
+ * routine to create an XML buffer from an immutable memory area,
+ * The are won't be modified nor copied, and is expected to be
+ * present until the end of the buffer lifetime.
+ *
+ * returns the new structure.
+ */
+xmlBufferPtr
+xmlBufferCreateStatic(void *mem, size_t size) {
+ xmlBufferPtr ret;
+
+ if ((mem == NULL) || (size == 0))
+ return(NULL);
+
+ ret = (xmlBufferPtr) xmlMalloc(sizeof(xmlBuffer));
+ if (ret == NULL) {
+ xmlGenericError(xmlGenericErrorContext,
+ "xmlBufferCreate : out of memory!\n");
+ return(NULL);
+ }
+ ret->use = size;
+ ret->size = size;
+ ret->alloc = XML_BUFFER_ALLOC_IMMUTABLE;
+ ret->content = (xmlChar *) mem;
+ return(ret);
+}
+
+/**
* xmlBufferSetAllocationScheme:
* @buf: the buffer to tune
* @scheme: allocation scheme to use
@@ -6349,6 +6380,7 @@ xmlBufferSetAllocationScheme(xmlBufferPtr buf,
#endif
return;
}
+ if (buf->alloc == XML_BUFFER_ALLOC_IMMUTABLE) return;
buf->alloc = scheme;
}
@@ -6369,7 +6401,9 @@ xmlBufferFree(xmlBufferPtr buf) {
#endif
return;
}
- if (buf->content != NULL) {
+
+ if ((buf->content != NULL) &&
+ (buf->alloc != XML_BUFFER_ALLOC_IMMUTABLE)) {
xmlFree(buf->content);
}
xmlFree(buf);
@@ -6385,7 +6419,11 @@ void
xmlBufferEmpty(xmlBufferPtr buf) {
if (buf->content == NULL) return;
buf->use = 0;
- memset(buf->content, 0, buf->size);
+ if (buf->alloc == XML_BUFFER_ALLOC_IMMUTABLE) {
+ buf->content="";
+ } else {
+ memset(buf->content, 0, buf->size);
+ }
}
/**
@@ -6403,9 +6441,12 @@ xmlBufferShrink(xmlBufferPtr buf, unsigned int len) {
if (len > buf->use) return(-1);
buf->use -= len;
- memmove(buf->content, &buf->content[len], buf->use * sizeof(xmlChar));
-
- buf->content[buf->use] = 0;
+ if (buf->alloc == XML_BUFFER_ALLOC_IMMUTABLE) {
+ buf->content += len;
+ } else {
+ memmove(buf->content, &buf->content[len], buf->use * sizeof(xmlChar));
+ buf->content[buf->use] = 0;
+ }
return(len);
}
@@ -6423,6 +6464,7 @@ xmlBufferGrow(xmlBufferPtr buf, unsigned int len) {
int size;
xmlChar *newbuf;
+ if (buf->alloc == XML_BUFFER_ALLOC_IMMUTABLE) return(0);
if (len + buf->use < buf->size) return(0);
size = buf->use + len + 100;
@@ -6517,6 +6559,8 @@ xmlBufferResize(xmlBufferPtr buf, unsigned int size)
unsigned int newSize;
xmlChar* rebuf = NULL;
+ if (buf->alloc == XML_BUFFER_ALLOC_IMMUTABLE) return(0);
+
/*take care of empty case*/
newSize = (buf->size ? buf->size*2 : size);
@@ -6586,6 +6630,7 @@ xmlBufferAdd(xmlBufferPtr buf, const xmlChar *str, int len) {
#endif
return;
}
+ if (buf->alloc == XML_BUFFER_ALLOC_IMMUTABLE) return;
if (len < -1) {
#ifdef DEBUG_BUFFER
xmlGenericError(xmlGenericErrorContext,
@@ -6627,6 +6672,7 @@ void
xmlBufferAddHead(xmlBufferPtr buf, const xmlChar *str, int len) {
unsigned int needSize;
+ if (buf->alloc == XML_BUFFER_ALLOC_IMMUTABLE) return;
if (str == NULL) {
#ifdef DEBUG_BUFFER
xmlGenericError(xmlGenericErrorContext,
@@ -6672,6 +6718,7 @@ xmlBufferAddHead(xmlBufferPtr buf, const xmlChar *str, int len) {
*/
void
xmlBufferCat(xmlBufferPtr buf, const xmlChar *str) {
+ if (buf->alloc == XML_BUFFER_ALLOC_IMMUTABLE) return;
if (str != NULL)
xmlBufferAdd(buf, str, -1);
}
@@ -6687,6 +6734,7 @@ void
xmlBufferCCat(xmlBufferPtr buf, const char *str) {
const char *cur;
+ if (buf->alloc == XML_BUFFER_ALLOC_IMMUTABLE) return;
if (str == NULL) {
#ifdef DEBUG_BUFFER
xmlGenericError(xmlGenericErrorContext,
@@ -6716,8 +6764,8 @@ xmlBufferCCat(xmlBufferPtr buf, const char *str) {
* xmlChars at the end of the buffer.
*/
void
-xmlBufferWriteCHAR
-(xmlBufferPtr buf, const xmlChar *string) {
+xmlBufferWriteCHAR(xmlBufferPtr buf, const xmlChar *string) {
+ if (buf->alloc == XML_BUFFER_ALLOC_IMMUTABLE) return;
xmlBufferCat(buf, string);
}
@@ -6731,6 +6779,7 @@ xmlBufferWriteCHAR
*/
void
xmlBufferWriteChar(xmlBufferPtr buf, const char *string) {
+ if (buf->alloc == XML_BUFFER_ALLOC_IMMUTABLE) return;
xmlBufferCCat(buf, string);
}
@@ -6747,6 +6796,7 @@ xmlBufferWriteChar(xmlBufferPtr buf, const char *string) {
void
xmlBufferWriteQuotedString(xmlBufferPtr buf, const xmlChar *string) {
const xmlChar *cur, *base;
+ if (buf->alloc == XML_BUFFER_ALLOC_IMMUTABLE) return;
if (xmlStrchr(string, '\"')) {
if (xmlStrchr(string, '\'')) {
#ifdef DEBUG_BUFFER
diff --git a/xmlIO.c b/xmlIO.c
index c318945d..ff7c7ade 100644
--- a/xmlIO.c
+++ b/xmlIO.c
@@ -2012,6 +2012,52 @@ xmlParserInputBufferCreateMem(const char *mem, int size, xmlCharEncoding enc) {
}
/**
+ * xmlParserInputBufferCreateStatic:
+ * @mem: the memory input
+ * @size: the length of the memory block
+ * @enc: the charset encoding if known
+ *
+ * Create a buffered parser input for the progressive parsing for the input
+ * from an immutable memory area. This will not copy the memory area to
+ * the buffer, but the memory is expected to be available until the end of
+ * the parsing, this is useful for example when using mmap'ed file.
+ *
+ * Returns the new parser input or NULL
+ */
+xmlParserInputBufferPtr
+xmlParserInputBufferCreateStatic(const char *mem, int size,
+ xmlCharEncoding enc) {
+ xmlParserInputBufferPtr ret;
+
+ if (size <= 0) return(NULL);
+ if (mem == NULL) return(NULL);
+
+ ret = (xmlParserInputBufferPtr) xmlMalloc(sizeof(xmlParserInputBuffer));
+ if (ret == NULL) {
+ xmlGenericError(xmlGenericErrorContext,
+ "xmlParserInputBufferCreateStatic : out of memory!\n");
+ return(NULL);
+ }
+ memset(ret, 0, (size_t) sizeof(xmlParserInputBuffer));
+ ret->buffer = xmlBufferCreateStatic(mem, size);
+ if (ret->buffer == NULL) {
+ xmlFree(ret);
+ return(NULL);
+ }
+ ret->encoder = xmlGetCharEncodingHandler(enc);
+ if (ret->encoder != NULL)
+ ret->raw = xmlBufferCreateSize(2 * xmlDefaultBufferSize);
+ else
+ ret->raw = NULL;
+ ret->compressed = -1;
+ ret->context = (void *) mem;
+ ret->readcallback = NULL;
+ ret->closecallback = NULL;
+
+ return(ret);
+}
+
+/**
* xmlOutputBufferCreateFd:
* @fd: a file descriptor number
* @encoder: the encoding converter or NULL
@@ -2265,6 +2311,9 @@ xmlParserInputBufferRead(xmlParserInputBufferPtr in, int len) {
/* xmlBufferEmpty(in->buffer); */
if (in->readcallback != NULL)
return(xmlParserInputBufferGrow(in, len));
+ else if ((in->buffer != NULL) &&
+ (in->buffer->alloc == XML_BUFFER_ALLOC_IMMUTABLE))
+ return(0);
else
return(-1);
}
diff --git a/xmllint.c b/xmllint.c
index 100a83d4..a734ff05 100644
--- a/xmllint.c
+++ b/xmllint.c
@@ -624,7 +624,7 @@ static void streamFile(char *filename) {
if (base == (void *) MAP_FAILED)
return;
- input = xmlParserInputBufferCreateMem((char *) base, info.st_size,
+ input = xmlParserInputBufferCreateStatic((char *) base, info.st_size,
XML_CHAR_ENCODING_NONE);
reader = xmlNewTextReader(input, filename);
} else
diff --git a/xmlreader.c b/xmlreader.c
index 95920080..f325352b 100644
--- a/xmlreader.c
+++ b/xmlreader.c
@@ -765,12 +765,25 @@ xmlTextReaderPushData(xmlTextReaderPtr reader) {
*/
if (reader->mode != XML_TEXTREADER_MODE_EOF) {
val = xmlParserInputBufferRead(reader->input, 4096);
- if (val <= 0) {
+ if ((val == 0) &&
+ (inbuf->alloc == XML_BUFFER_ALLOC_IMMUTABLE)) {
+ if (inbuf->use == reader->cur) {
+ reader->mode = XML_TEXTREADER_MODE_EOF;
+ reader->state = oldstate;
+ if ((oldstate != XML_TEXTREADER_START) ||
+ (reader->ctxt->myDoc != NULL))
+ return(val);
+ }
+ } else if (val < 0) {
reader->mode = XML_TEXTREADER_MODE_EOF;
reader->state = oldstate;
if ((oldstate != XML_TEXTREADER_START) ||
(reader->ctxt->myDoc != NULL))
return(val);
+ } else if (val == 0) {
+ /* mark the end of the stream and process the remains */
+ reader->mode = XML_TEXTREADER_MODE_EOF;
+ break;
}
} else
@@ -1572,8 +1585,10 @@ xmlNewTextReader(xmlParserInputBufferPtr input, const char *URI) {
ret->mode = XML_TEXTREADER_MODE_INITIAL;
ret->node = NULL;
ret->curnode = NULL;
- val = xmlParserInputBufferRead(input, 4);
- if (val >= 4) {
+ if (ret->input->buffer->use < 4) {
+ val = xmlParserInputBufferRead(input, 4);
+ }
+ if (ret->input->buffer->use >= 4) {
ret->ctxt = xmlCreatePushParserCtxt(ret->sax, NULL,
(const char *) ret->input->buffer->content, 4, URI);
ret->base = 0;