runtime: idle goroutine
This functionality might be used in environments
where programs are limited to a single thread,
to simulate a select-driven network server. It is
not exposed via the standard runtime API.
R=r, r2
CC=golang-dev
https://golang.org/cl/4254041
diff --git a/src/pkg/runtime/runtime.h b/src/pkg/runtime/runtime.h
index 4456e9b..5db86a1 100644
--- a/src/pkg/runtime/runtime.h
+++ b/src/pkg/runtime/runtime.h
@@ -197,6 +197,7 @@
bool ispanic;
M* m; // for debuggers, but offset not hard-coded
M* lockedm;
+ M* idlem;
int32 sig;
uintptr sigcode0;
uintptr sigcode1;
@@ -233,6 +234,7 @@
uint32 machport; // Return address for Mach IPC (OS X)
MCache *mcache;
G* lockedg;
+ G* idleg;
uint32 freglo[16]; // D[i] lsb and F[i]
uint32 freghi[16]; // D[i] msb and F[i+16]
uint32 fflag; // floating point compare flags
