Build fails on non-Linux systems: error: variable has incomplete type 'struct mallinfo' about core

[yurivict]

No, mallocinfo() only exists in SunOS. FreeBSD doesn't have it.

---

As an alternative, you can use Google's tcmalloc from the google-perftools package.
google-perftools has better performance than most other malloc libraries, and it provides all sorts of information about memory allocator.

[bobpaw]

Is this malloc documentation available on your FreeBSD? It should also be possible (albeit a pain) to extract memory information from the malloc_stats_print function described there.

I created #411. Can you see if it fixes the first warning?

[bobpaw]

BSD might require -lmalloc according to the manpage.

[bobpaw]

I don't have a BSD system of my own and won't be able to spin up a VM for a few weeks. Since PCU_GetMem and pumi_getMem are only used in debug messages in a few places, it's probably ok to do something like this for now (until a more robust fix for FreeBSD is added):

diff --git a/pcu/pcu_mem.c b/pcu/pcu_mem.c
index 8ac2345c..5532ffac 100644
--- a/pcu/pcu_mem.c
+++ b/pcu/pcu_mem.c
@@ -8,6 +8,7 @@
  
 *******************************************************************************/
 #include <PCU.h>
+#include "reel.h" // reel_fail
 
 #if defined(__APPLE__)
 
@@ -54,5 +55,7 @@ double PCU_GetMem() {
 #elif defined(__GNUC__)
   struct mallinfo meminfo_now = mallinfo();
   return ((double)meminfo_now.arena)/M;
+#else
+  reel_fail("mallinfo not supported.");
 #endif
 }

Or, if you want those tests to run more or less successfully:

diff --git a/pcu/pcu_mem.c b/pcu/pcu_mem.c
index 8ac2345c..889650fb 100644
--- a/pcu/pcu_mem.c
+++ b/pcu/pcu_mem.c
@@ -54,5 +54,7 @@ double PCU_GetMem() {
 #elif defined(__GNUC__)
   struct mallinfo meminfo_now = mallinfo();
   return ((double)meminfo_now.arena)/M;
+#else
+  return 0.0;
 #endif
 }

In any case, I'm sure there are other systems where mallinfo isn't available, so there ought to be a solution.