mirror of
https://github.com/golang/go
synced 2024-11-11 23:20:24 -07:00
runtime: make ncgocall a global counter
ncgocall was stored per M, runtime.NumCgoCall lost the counter when a M die.
Fixes #46789
Change-Id: I85831fbb2713f4c30d1800d07e1f47aa0031970e
GitHub-Last-Rev: cbc15fa870
GitHub-Pull-Request: golang/go#46842
Reviewed-on: https://go-review.googlesource.com/c/go/+/329729
Run-TryBot: Ian Lance Taylor <iant@golang.org>
TryBot-Result: Go Bot <gobot@golang.org>
Reviewed-by: Ian Lance Taylor <iant@golang.org>
Trust: Alexander Rakoczy <alex@golang.org>
This commit is contained in:
parent
37f9a8f69d
commit
d01bc571f7
@ -110,6 +110,8 @@ func syscall_cgocaller(fn unsafe.Pointer, args ...uintptr) uintptr {
|
||||
return as.retval
|
||||
}
|
||||
|
||||
var ncgocall uint64 // number of cgo calls in total for dead m
|
||||
|
||||
// Call from Go to C.
|
||||
//
|
||||
// This must be nosplit because it's used for syscalls on some
|
||||
|
@ -45,7 +45,7 @@ func NumCPU() int {
|
||||
|
||||
// NumCgoCall returns the number of cgo calls made by the current process.
|
||||
func NumCgoCall() int64 {
|
||||
var n int64
|
||||
var n = int64(atomic.Load64(&ncgocall))
|
||||
for mp := (*m)(atomic.Loadp(unsafe.Pointer(&allm))); mp != nil; mp = mp.alllink {
|
||||
n += int64(mp.ncgocall)
|
||||
}
|
||||
|
@ -1522,6 +1522,8 @@ found:
|
||||
}
|
||||
unlock(&sched.lock)
|
||||
|
||||
atomic.Xadd64(&ncgocall, int64(m.ncgocall))
|
||||
|
||||
// Release the P.
|
||||
handoffp(releasep())
|
||||
// After this point we must not have write barriers.
|
||||
|
Loading…
Reference in New Issue
Block a user