[PATCH ncns v1 1/2] chnet: Initialize `read_ret_` to zero

[Ammar Faizi <ammarfaizi2@gnuweeb.org>]

We can't rely on read_ret_ value being random at initialization. This
caused a real crash where @ret value being random (83382480 in this
case):

  ret = 83382480
  [0817/093957.227555:FATAL:scoped_refptr.h(272)] Check failed: ptr_.
  #0 0x7fa9a8a6b62c <unknown>
  #1 0x7fa9a87cb30a <unknown>
  #2 0x7fa9a87cb2c5 <unknown>
  #3 0x7fa9a881c799 <unknown>
  #4 0x7fa9a881cfa9 <unknown>
  #5 0x7fa9a878537b <unknown>
  #6 0x7fa9a93866b6 <unknown>
  #7 0x7fa9a93121fa <unknown>
  #8 0x7fa9a931debd <unknown>
  #9 0x000000b0deed <unknown>
  #10 0x000000d972d0 <unknown>
  #11 0x000000d9880f <unknown>
  #12 0x0000016dabb9 <unknown>

Signed-off-by: Ammar Faizi <ammarfaizi2@gnuweeb.org>
---
 chnet/chnet.cc | 1 +
 1 file changed, 1 insertion(+)

diff --git a/chnet/chnet.cc b/chnet/chnet.cc
index 37c0b03..c870e05 100644
--- a/chnet/chnet.cc
+++ b/chnet/chnet.cc
@@ -43,6 +43,7 @@ CHNetDelegate::CHNetDelegate(void):
 {
 	base::Thread::Options options(base::MessagePumpType::IO, 0);
 	CHECK(thread_.StartWithOptions(std::move(options)));
+	read_ret_.store(0, std::memory_order_relaxed);
 }
 
 static void CHNetDelegateDestruct(std::unique_ptr<URLRequest> *url_req,
-- 
Ammar Faizi