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authorGravatar Muxi Yan <mxyan@google.com>2018-08-07 16:29:28 -0700
committerGravatar Muxi Yan <mxyan@google.com>2018-08-07 16:30:25 -0700
commit5f2f984be15f00942bf0c7cebbff0e78f4702b03 (patch)
tree118cae29e127777f34a8166a2c44ed937b7b5962 /doc
parentb9e53ee368dce961f1098e57641439123df03794 (diff)
update environment_variable.md
Diffstat (limited to 'doc')
-rw-r--r--doc/environment_variables.md4
1 files changed, 4 insertions, 0 deletions
diff --git a/doc/environment_variables.md b/doc/environment_variables.md
index bf2de927a4..b472f7e126 100644
--- a/doc/environment_variables.md
+++ b/doc/environment_variables.md
@@ -135,3 +135,7 @@ some configuration as environment variables that can be set.
if set, flow control will be effectively disabled. Max out all values and
assume the remote peer does the same. Thus we can ignore any flow control
bookkeeping, error checking, and decision making
+
+* grpc_cfstream
+ set to 1 to turn on CFStream experiment. With this experiment gRPC uses CFStream API to make TCP
+ connections. The option is only available on iOS platform and when macro GRPC_CFSTREAM is defined.