mononoke/sql_ext: add mysql connections

Summary: The diff adds API to create a set of connections: read, read master and write.

Reviewed By: ahornby

Differential Revision: D23568561

fbshipit-source-id: b3ee954604557497ed56c6b369256b6f76a1e042

eden/mononoke/common/rust/sql_ext/Cargo.toml

@@ -10,6 +10,7 @@ include = ["src/**/*.rs"]
 fbinit = { git = "https://github.com/facebookexperimental/rust-shed.git", branch = "master" }
 futures_ext = { git = "https://github.com/facebookexperimental/rust-shed.git", branch = "master" }
 sql = { git = "https://github.com/facebookexperimental/rust-shed.git", branch = "master" }
+sql_common = { git = "https://github.com/facebookexperimental/rust-shed.git", branch = "master" }
 anyhow = "1.0"
 async-trait = "0.1.29"
 futures-old = { package = "futures", version = "0.1" }

eden/mononoke/common/rust/sql_ext/src/lib.rs

@@ -44,15 +44,15 @@ pub mod facebook {
 
     #[cfg(fbcode_build)]
     pub use r#impl::{
-        create_myrouter_connections, create_raw_xdb_connections,
+        create_myrouter_connections, create_mysql_connections, create_raw_xdb_connections,
         myadmin::{MyAdmin, MyAdminLagMonitor},
         myrouter_ready,
     };
 
     #[cfg(not(fbcode_build))]
     pub use crate::oss::{
-        create_myrouter_connections, create_raw_xdb_connections, myrouter_ready, MyAdmin,
-        MyAdminLagMonitor,
+        create_myrouter_connections, create_mysql_connections, create_raw_xdb_connections,
+        myrouter_ready, MyAdmin, MyAdminLagMonitor,
     };
 
     #[derive(Copy, Clone, Debug)]

eden/mononoke/common/rust/sql_ext/src/oss.rs

@@ -43,6 +43,17 @@ pub fn create_myrouter_connections(
     fb_unimplemented!()
 }
 
+pub fn create_mysql_connections(
+    _fb: FacebookInit,
+    _tier: String,
+    _shard_id: Option<usize>,
+    _read_con_type: ReadConnectionType,
+    _pool_size_config: PoolSizeConfig,
+    _readonly: bool,
+) -> Result<SqlConnections, Error> {
+    fb_unimplemented!()
+}
+
 pub fn myrouter_ready(
     db_addr_opt: Option<String>,
     mysql_options: MysqlOptions,