runtime: rename Cgocalls and Goroutines to NumCgoCall and NumGoroutine, respectively.

Update some other docs too.

Update #2955.

R=rsc
CC=golang-dev
https://golang.org/cl/5676060

src/pkg/net/http/transport_test.go

@@ -648,7 +648,7 @@ func TestTransportPersistConnLeak(t *testing.T) {
 	tr := &Transport{}
 	c := &Client{Transport: tr}
 
-	n0 := runtime.Goroutines()
+	n0 := runtime.NumGoroutine()
 
 	const numReq = 25
 	didReqCh := make(chan bool)
@@ -669,7 +669,7 @@ func TestTransportPersistConnLeak(t *testing.T) {
 		<-gotReqCh
 	}
 
-	nhigh := runtime.Goroutines()
+	nhigh := runtime.NumGoroutine()
 
 	// Tell all handlers to unblock and reply.
 	for i := 0; i < numReq; i++ {
@@ -685,7 +685,7 @@ func TestTransportPersistConnLeak(t *testing.T) {
 	time.Sleep(100 * time.Millisecond)
 	runtime.GC()
 	runtime.GC() // even more.
-	nfinal := runtime.Goroutines()
+	nfinal := runtime.NumGoroutine()
 
 	growth := nfinal - n0
 

src/pkg/runtime/cgocall.c

@@ -151,7 +151,7 @@ unlockm(void)
 }
 
 void
-runtime·Cgocalls(int64 ret)
+runtime·NumCgoCall(int64 ret)
 {
 	M *m;
 

src/pkg/runtime/debug.go

@@ -26,11 +26,11 @@ func GOMAXPROCS(n int) int
 // NumCPU returns the number of logical CPUs on the local machine.
 func NumCPU() int
 
-// Cgocalls returns the number of cgo calls made by the current process.
-func Cgocalls() int64
+// NumCgoCall returns the number of cgo calls made by the current process.
+func NumCgoCall() int64
 
-// Goroutines returns the number of goroutines that currently exist.
-func Goroutines() int32
+// NumGoroutine returns the number of goroutines that currently exist.
+func NumGoroutine() int32
 
 // Alloc allocates a block of the given size.
 // FOR TESTING AND DEBUGGING ONLY.

src/pkg/runtime/extern.go

@@ -141,10 +141,10 @@ func Version() string {
 	return theVersion
 }
 
-// GOOS is the Go tree's operating system target:
+// GOOS is the running program's operating system target:
 // one of darwin, freebsd, linux, and so on.
 const GOOS string = theGoos
 
-// GOARCH is the Go tree's architecture target:
+// GOARCH is the running program's architecture target:
 // 386, amd64, or arm.
 const GOARCH string = theGoarch

src/pkg/runtime/proc.c

@@ -342,7 +342,7 @@ mcommoninit(M *m)
 	// Add to runtime·allm so garbage collector doesn't free m
 	// when it is just in a register or thread-local storage.
 	m->alllink = runtime·allm;
-	// runtime·Cgocalls() iterates over allm w/o schedlock,
+	// runtime·NumCgoCall() iterates over allm w/o schedlock,
 	// so we need to publish it safely.
 	runtime·atomicstorep(&runtime·allm, m);
 }
@@ -1652,7 +1652,7 @@ runtime·mid(uint32 ret)
 }
 
 void
-runtime·Goroutines(int32 ret)
+runtime·NumGoroutine(int32 ret)
 {
 	ret = runtime·sched.gcount;
 	FLUSH(&ret);