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Fix test failure on MSVC

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This commit is contained in:
Jay Berkenbilt 2017-09-15 23:08:58 -04:00
parent 6898bc8d98
commit 249e95f608
1 changed files with 14 additions and 4 deletions
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18
libqpdf/Pl_DCT.cc
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@ -68,6 +68,20 @@ Pl_DCT::finish()
{
this->buf.finish();
// Using a PointerHolder<Buffer> here and passing it into compress
// and decompress causes a memory leak with setjmp/longjmp. Just
// use a pointer and delete it.
Buffer* b = this->buf.getBuffer();
if (b->getSize() == 0)
{
// Special case: empty data will never succeed and probably
// means we're calling finish a second time from an exception
// handler.
delete b;
this->getNext()->finish();
return;
}
struct jpeg_compress_struct cinfo_compress;
struct jpeg_decompress_struct cinfo_decompress;
struct qpdf_jpeg_error_mgr jerr;
@ -77,10 +91,6 @@ Pl_DCT::finish()
jerr.pub.error_exit = error_handler;
bool error = false;
// Using a PointerHolder<Buffer> here and passing it into compress
// and decompress causes a memory leak with setjmp/longjmp. Just
// use a pointer and delete it.
Buffer* b = this->buf.getBuffer();
// The jpeg library is a "C" library, so we use setjmp and longjmp
// for exception handling.
if (setjmp(jerr.jmpbuf) == 0)