pdfviewer: measure mem usage, command line flags library.

experimental/PdfViewer/pdfparser/native/SkPdfNativeTokenizer.cpp

 
 #include "SkPdfNativeTokenizer.h"
 #include "SkPdfObject.h"
 #include "SkPdfConfig.h"
 
 #include "SkPdfStreamCommonDictionary_autogen.h"
 
 static unsigned char* skipPdfWhiteSpaces(unsigned char* start, unsigned char* end) {
     while (start < end && isPdfWhiteSpace(*start)) {
         if (*start == kComment_PdfDelimiter) {
@@ skipping 633 matching lines @@
 
     if (isPdfNumeric(*start)) {
         SkPdfObject::makeNumeric(start, current, token);
     } else {
         SkPdfObject::makeKeyword(start, current, token);
     }
     return current;
 }
 
 SkPdfObject* SkPdfAllocator::allocBlock() {
+    fSizeInBytes += BUFFER_SIZE * sizeof(SkPdfObject);
     return new SkPdfObject[BUFFER_SIZE];
 }
 
 SkPdfAllocator::~SkPdfAllocator() {
     for (int i = 0 ; i < fHandles.count(); i++) {
         free(fHandles[i]);
     }
     for (int i = 0 ; i < fHistory.count(); i++) {
         for (int j = 0 ; j < BUFFER_SIZE; j++) {
             fHistory[i][j].reset();
         }
         delete[] fHistory[i];
     }
     for (int j = 0 ; j < BUFFER_SIZE; j++) {
         fCurrent[j].reset();
     }
     delete[] fCurrent;
 }
 
 SkPdfObject* SkPdfAllocator::allocObject() {
     if (fCurrentUsed >= BUFFER_SIZE) {
         fHistory.push(fCurrent);
         fCurrent = allocBlock();
         fCurrentUsed = 0;
+        fSizeInBytes += sizeof(SkPdfObject*);
     }
     fCurrentUsed++;
     return &fCurrent[fCurrentUsed - 1];
 }
 
 // TODO(edisonn): perf: do no copy the buffers, but use them, and mark cache the result, so there is no need of a second pass
 SkPdfNativeTokenizer::SkPdfNativeTokenizer(SkPdfObject* objWithStream, const SkPdfMapper* mapper, SkPdfAllocator* allocator, SkNativeParsedPDF* doc) : fDoc(doc), fMapper(mapper), fAllocator(allocator), fUncompressedStream(NULL), fUncompressedStreamEnd(NULL), fEmpty(false), fHasPutBack(false) {
     unsigned char* buffer = NULL;
     size_t len = 0;
     objWithStream->GetFilteredStreamRef(&buffer, &len, fAllocator);
@@ skipping 79 matching lines @@
     if (fEmpty) {
 #ifdef PDF_TRACE
     printf("EMPTY TOKENIZER\n");
 #endif
         return false;
     }
 
     return readTokenCore(token);
 }