Hello,
To trigger the memory leak, an application embedding R will have printed
a vector element of size R_BUFSIZE or more to stdout, so long as the
R_Outputfile pointer is NULL and R was compiled with vasprintf support.
The leak is in Rcons_vprintf from printutils.c. It looks as though
someone set up a fix for this but forgot a critical flag assignment when
vasprintf() is called (vasprintf mallocs a buffer to print to, so it
needs to be freed after use). Here's the fix:
Index: printutils.c
==================================================================---
printutils.c (revision 42743)
+++ printutils.c (working copy)
@@ -658,8 +658,10 @@
res = vsnprintf(buf, R_BUFSIZE, format, aq);
va_end(aq);
#ifdef HAVE_VASPRINTF
- if(res >= R_BUFSIZE || res < 0)
+ if(res >= R_BUFSIZE || res < 0){
+ usedVasprintf = TRUE;
vasprintf(&p, format, arg);
+ }
#else
if(res >= R_BUFSIZE) { /* res is the desired output length */
usedRalloc = TRUE;
Best,
Jeff
--
http://biostat.mc.vanderbilt.edu/JeffreyHorner