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[goodguy/history.git] / cinelerra-5.1 / cinelerra / filexml.C

diff --git a/cinelerra-5.1/cinelerra/filexml.C b/cinelerra-5.1/cinelerra/filexml.C
index f707ad60b9b8d5abb326fa915874dfb812f654b5..5390617b05782be862a806c66c9579abe9b6ec41 100644 (file)
--- a/cinelerra-5.1/cinelerra/filexml.C
+++ b/cinelerra-5.1/cinelerra/filexml.C
@@ -58,7 +58,7 @@ XMLBuffer::XMLBuffer(const char *buf, long buf_size, int del)
        destroy = del;
 }
 
-XMLBuffer::XMLBuffer(long buf_size, const char *buf, int del)
+XMLBuffer::XMLBuffer(long buf_size, char *buf, int del)
 {      // writing
        bfr = (unsigned char *)buf;
        bsz = buf_size;
@@ -73,9 +73,10 @@ XMLBuffer::~XMLBuffer()
        if( destroy ) delete [] bfr;
 }
 
-unsigned char *&XMLBuffer::demand(long len)
+int XMLBuffer::demand(long len)
 {
        if( len > bsz ) {
+               if( !destroy ) return 0;
                long sz = inp-bfr;
                len += sz/2 + BCTEXTLEN;
                unsigned char *np = new unsigned char[len];
@@ -85,13 +86,13 @@ unsigned char *&XMLBuffer::demand(long len)
                lmt = np + len;  bsz = len;
                delete [] bfr;   bfr = np;
        }
-       return bfr;
+       return 1;
 }
 
 int XMLBuffer::write(const char *bp, int len)
 {
-       if( !destroy && lmt-inp < len ) len = lmt-inp;
        if( len <= 0 ) return 0;
+       if( !destroy && lmt-inp < len ) len = lmt-inp;
        demand(otell()+len);
        memmove(inp,bp,len);
        inp += len;