getmem() for solaris

src/node.cc

@@ -475,6 +475,50 @@ v8::Handle<v8::Value> Exit(const v8::Arguments& args) {
   return Undefined();
 }
 
+#ifdef __sun
+#define HAVE_GETMEM 1
+#include <unistd.h> /* getpagesize() */
+
+#if (!defined(_LP64)) && (_FILE_OFFSET_BITS - 0 == 64)
+#define PROCFS_FILE_OFFSET_BITS_HACK 1
+#undef _FILE_OFFSET_BITS
+#else
+#define PROCFS_FILE_OFFSET_BITS_HACK 0
+#endif
+
+#include <procfs.h>
+
+#if (PROCFS_FILE_OFFSET_BITS_HACK - 0 == 1)
+#define _FILE_OFFSET_BITS 64
+#endif
+
+int getmem(size_t *rss, size_t *vsize) {
+  pid_t pid = getpid();
+
+  size_t page_size = getpagesize();
+  char pidpath[1024];
+  sprintf(pidpath, "/proc/%d/psinfo", pid);
+
+  psinfo_t psinfo;
+  FILE *f = fopen(pidpath, "r");
+  if (!f) return -1;
+
+  if (fread(&psinfo, sizeof(psinfo_t), 1, f) != 1) {
+    fclose (f);
+    return -1;
+  }
+
+  /* XXX correct? */
+
+  *vsize = (size_t) psinfo.pr_size * page_size;
+  *rss = (size_t) psinfo.pr_rssize * 1024;
+
+  fclose (f);
+
+  return 0;
+}
+#endif
+
 
 #ifdef __FreeBSD__
 #define HAVE_GETMEM 1