fixes #32 autoscale based on CPUs available

This should work on both Windows and the most common POSIX
variants.  We will create at least two threads for running
completions, but there are numerous other threads in the code.

1 files changed, 9 insertions, 0 deletions

diff --git a/src/platform/windows/win_thread.c b/src/platform/windows/win_thread.c
index 2e9d58d7..a3d932aa 100644
--- a/src/platform/windows/win_thread.c
+++ b/src/platform/windows/win_thread.c
@@ -148,6 +148,15 @@ nni_plat_thr_is_self(nni_plat_thr *thr)
 static LONG plat_inited = 0;
 
 int
+nni_plat_ncpu(void)
+{
+	SYSTEM_INFO info;
+
+	GetSystemInfo(&info);
+	return ((int) (info.dwNumberOfProcessors));
+}
+
+int
 nni_plat_init(int (*helper)(void))
 {
 	int            rv   = 0;