1 files changed, 38 insertions, 2 deletions
diff --git a/src/core/lib/iomgr/tcp_client_posix.h b/src/core/lib/iomgr/tcp_client_posix.h
index 2b1fe79e90..57e50a67d2 100644
--- a/src/core/lib/iomgr/tcp_client_posix.h
+++ b/src/core/lib/iomgr/tcp_client_posix.h
@@ -23,8 +23,44 @@
 #include "src/core/lib/iomgr/ev_posix.h"
 #include "src/core/lib/iomgr/tcp_client.h"
 
+/* Create an endpoint from a connected grpc_fd.
+
+   fd: a connected FD. Ownership is taken.
+   channel_args: may contain custom settings for the endpoint
+   addr_str: destination address in printable format
+   Returns: a new endpoint
+*/
 grpc_endpoint* grpc_tcp_client_create_from_fd(
-    grpc_exec_ctx* exec_ctx, grpc_fd* fd, const grpc_channel_args* channel_args,
-    const char* addr_str);
+    grpc_fd* fd, const grpc_channel_args* channel_args, const char* addr_str);
+
+/* Return a configured, unbound, unconnected TCP client grpc_fd.
+
+   channel_args: may contain custom settings for the fd
+   addr: the destination address
+   mapped_addr: out parameter. addr mapped to an address appropriate to the
+     type of socket FD created. For example, if addr is IPv4 and dual stack
+     sockets are available, mapped_addr will be an IPv4-mapped IPv6 address
+   fdobj: out parameter. The new FD
+   Returns: error, if any. Out parameters are not set on error
+*/
+grpc_error* grpc_tcp_client_prepare_fd(const grpc_channel_args* channel_args,
+                                       const grpc_resolved_address* addr,
+                                       grpc_resolved_address* mapped_addr,
+                                       grpc_fd** fdobj);
+
+/* Connect a configured TCP client grpc_fd.
+
+   interested_parties: a set of pollsets that would be interested in this
+     connection being established (in order to continue their work
+   closure: called when complete. On success, *ep will be set.
+   fdobj: an FD returned from grpc_tcp_client_prepare_fd(). Ownership is taken
+   channel_args: may contain custom settings for the endpoint
+   deadline: connection deadline
+   ep: out parameter. Set before closure is called if successful
+*/
+void grpc_tcp_client_create_from_prepared_fd(
+    grpc_pollset_set* interested_parties, grpc_closure* closure, grpc_fd* fdobj,
+    const grpc_channel_args* channel_args, const grpc_resolved_address* addr,
+    grpc_millis deadline, grpc_endpoint** ep);
 
 #endif /* GRPC_CORE_LIB_IOMGR_TCP_CLIENT_POSIX_H */