[sqlite] always enable the write daemon

Summary: Since there is no discernible downside in using the write daemon unless in single-thread mode or in buck, make it only depend on these circumstances, not a command line flag.

Reviewed By: skcho

Differential Revision: D23004451

fbshipit-source-id: 5c1d06ed1

infer/man/man1/infer-full.txt

@@ -1840,10 +1840,6 @@ INTERNAL OPTIONS
        --sqlite-vfs-reset
            Cancel the effect of --sqlite-vfs.
 
-       --sqlite-write-daemon
-           Activates: Route all DB writes through a daemon process
-           (Conversely: --no-sqlite-write-daemon)
-
        --starvation-skip-analysis json
            Specify combinations of class/method list that should be skipped
            during starvation analysis

infer/src/IR/SourceFiles.ml

@@ -55,10 +55,7 @@ let add source_file cfg tenv integer_type_widths =
   (* NOTE: it's important to write attribute files to disk before writing cfgs to disk.
      OndemandCapture module relies on it - it uses existance of the cfg as a barrier to make
      sure that all attributes were written to disk (but not necessarily flushed) *)
-  if Config.sqlite_write_daemon then Cfg.store source_file cfg
-  else
-    SqliteUtils.with_transaction (ResultsDatabase.get_database ()) ~f:(fun () ->
-        Cfg.store source_file cfg ) ;
+  Cfg.store source_file cfg ;
   DBWriter.add_source_file
     ~source_file:(SourceFile.SQLite.serialize source_file)
     ~tenv:(Tenv.SQLite.serialize tenv)

infer/src/base/Config.ml

@@ -2228,9 +2228,9 @@ and sqlite_vfs =
   CLOpt.mk_string_opt ?default ~long:"sqlite-vfs" "VFS for SQLite"
 
 
-and sqlite_write_daemon =
-  CLOpt.mk_bool ~default:false "Route all DB writes through a daemon process"
-    ~long:"sqlite-write-daemon"
+and (_ : bool ref) =
+  CLOpt.mk_bool ~default:false "[DEPRECATED][DOES NOTHING] option does not exist any more"
+    ~deprecated:["-sqlite-write-daemon"] ~deprecated_no:["-no-sqlite-write-daemon"] ~long:""
 
 
 and subtype_multirange =
@@ -3144,8 +3144,6 @@ and sqlite_lock_timeout = !sqlite_lock_timeout
 
 and sqlite_vfs = !sqlite_vfs
 
-and sqlite_write_daemon = !sqlite_write_daemon
-
 and starvation_skip_analysis = !starvation_skip_analysis
 
 and starvation_strict_mode = !starvation_strict_mode

infer/src/base/Config.mli

@@ -567,8 +567,6 @@ val sqlite_lock_timeout : int
 
 val sqlite_vfs : string option
 
-val sqlite_write_daemon : bool
-
 val starvation_skip_analysis : Yojson.Basic.t
 
 val starvation_strict_mode : bool

infer/src/base/DBWriter.ml

@@ -325,7 +325,7 @@ module Server = struct
         send Command.Handshake
 end
 
-let use_daemon = Config.(sqlite_write_daemon && (not (buck || genrule_mode)) && jobs > 1)
+let use_daemon = Config.((not (buck || genrule_mode)) && jobs > 1)
 
 let perform cmd = if use_daemon then Server.send cmd else Command.execute cmd
 

infer/src/base/SqliteUtils.ml

@@ -89,12 +89,6 @@ let db_close db =
             (Sqlite3.errmsg db)))
 
 
-let with_transaction db ~f =
-  exec db ~log:"begin transaction" ~stmt:"BEGIN IMMEDIATE TRANSACTION" ;
-  f () ;
-  exec db ~log:"commit transaction" ~stmt:"COMMIT"
-
-
 module type Data = sig
   type t
 

infer/src/base/SqliteUtils.mli

@@ -60,9 +60,6 @@ val result_unit : ?finalize:bool -> Sqlite3.db -> log:string -> Sqlite3.stmt ->
 val db_close : Sqlite3.db -> unit
 (** Close the given database and asserts that it was effective. Raises {!Error} if not. *)
 
-val with_transaction : Sqlite3.db -> f:(unit -> unit) -> unit
-(** Execute [f] within an explicit sqlite transaction. *)
-
 (** An API commonly needed to store and retrieve objects from the database *)
 module type Data = sig
   type t