diff options
Diffstat (limited to 'erts/preloaded/src')
| -rw-r--r-- | erts/preloaded/src/erl_prim_loader.erl | 11 | ||||
| -rw-r--r-- | erts/preloaded/src/init.erl | 116 |
2 files changed, 77 insertions, 50 deletions
diff --git a/erts/preloaded/src/erl_prim_loader.erl b/erts/preloaded/src/erl_prim_loader.erl index cbcced5512..641abae7b1 100644 --- a/erts/preloaded/src/erl_prim_loader.erl +++ b/erts/preloaded/src/erl_prim_loader.erl @@ -56,7 +56,7 @@ -export([purge_archive_cache/0]). %% Used by init and the code server. --export([get_modules/3]). +-export([get_modules/2,get_modules/3]). -include_lib("kernel/include/file.hrl"). @@ -239,6 +239,13 @@ set_primary_archive(File, ArchiveBin, FileInfo, ParserFun) purge_archive_cache() -> request(purge_archive_cache). +-spec get_modules([module()], + fun((atom(), string(), binary()) -> + {'ok',any()} | {'error',any()})) -> + {'ok',{[any()],[any()]}}. + +get_modules(Modules, Fun) -> + request({get_modules,{Modules,Fun}}). -spec get_modules([module()], fun((atom(), string(), binary()) -> @@ -338,6 +345,8 @@ handle_request(Req, Paths, St0) -> {{ok,Paths},St0}; {get_file,File} -> handle_get_file(St0, Paths, File); + {get_modules,{Modules,Fun}} -> + handle_get_modules(St0, Modules, Fun, Paths); {get_modules,{Modules,Fun,ModPaths}} -> handle_get_modules(St0, Modules, Fun, ModPaths); {list_dir,Dir} -> diff --git a/erts/preloaded/src/init.erl b/erts/preloaded/src/init.erl index 5de3732c20..915f1183d6 100644 --- a/erts/preloaded/src/init.erl +++ b/erts/preloaded/src/init.erl @@ -297,9 +297,9 @@ crash(String, List) -> -spec boot_loop(pid(), state()) -> no_return(). boot_loop(BootPid, State) -> receive - {BootPid,loaded,ModLoaded} -> - Loaded = State#state.loaded, - boot_loop(BootPid,State#state{loaded = [ModLoaded|Loaded]}); + {BootPid,loaded,NewlyLoaded} -> + Loaded = NewlyLoaded ++ State#state.loaded, + boot_loop(BootPid, State#state{loaded = Loaded}); {BootPid,started,KernelPid} -> boot_loop(BootPid, new_kernelpid(KernelPid, BootPid, State)); {BootPid,progress,started} -> @@ -338,12 +338,25 @@ boot_loop(BootPid, State) -> end. ensure_loaded(Module, Loaded) -> + case erlang:module_loaded(Module) of + true -> + {{module, Module}, Loaded}; + false -> + do_ensure_loaded(Module, Loaded) + end. + +do_ensure_loaded(Module, Loaded) -> File = atom_to_list(Module) ++ objfile_extension(), - case catch load_mod(Module,File) of - {ok, FullName} -> - {{module, Module}, [{Module, FullName}|Loaded]}; - Res -> - {Res, Loaded} + case erl_prim_loader:get_file(File) of + {ok,BinCode,FullName} -> + case do_load_module(Module, BinCode) of + ok -> + {{module, Module}, [{Module, FullName}|Loaded]}; + error -> + {error, [{Module, FullName}|Loaded]} + end; + Error -> + {Error, Loaded} end. %% Tell subscribed processes the system has started. @@ -842,13 +855,6 @@ eval_script([{kernel_load_completed}|T], #es{load_mode=Mode}=Es0) -> _ -> Es0#es{prim_load=false} end, eval_script(T, Es); -eval_script([{primLoad,[Mod]}|T], #es{prim_load=true}=Es) -> - %% Common special case (loading of error_handler). Nothing - %% to gain by parallel loading. - File = atom_to_list(Mod) ++ objfile_extension(), - {ok,Full} = load_mod(Mod, File), - init ! {self(),loaded,{Mod,Full}}, % Tell init about loaded module - eval_script(T, Es); eval_script([{primLoad,Mods}|T], #es{init=Init,prim_load=PrimLoad}=Es) when is_list(Mods) -> case PrimLoad of @@ -873,14 +879,44 @@ eval_script([], #es{}) -> eval_script(What, #es{}) -> exit({'unexpected command in bootfile',What}). -load_modules([Mod|Mods], Init) -> - File = atom_to_list(Mod) ++ objfile_extension(), - {ok,Full} = load_mod(Mod,File), - Init ! {self(),loaded,{Mod,Full}}, %Tell init about loaded module - load_modules(Mods, Init); -load_modules([], _) -> +load_modules(Mods0, Init) -> + Mods = [M || M <- Mods0, not erlang:module_loaded(M)], + F = prepare_loading_fun(), + case erl_prim_loader:get_modules(Mods, F) of + {ok,{Prep0,[]}} -> + Prep = [Code || {_,{prepared,Code,_}} <- Prep0], + ok = erlang:finish_loading(Prep), + Loaded = [{Mod,Full} || {Mod,{_,_,Full}} <- Prep0], + Init ! {self(),loaded,Loaded}, + Beams = [{M,Beam,Full} || {M,{on_load,Beam,Full}} <- Prep0], + load_rest(Beams, Init); + {ok,{_,[_|_]=Errors}} -> + Ms = [M || {M,_} <- Errors], + exit({load_failed,Ms}) + end. + +load_rest([{Mod,Beam,Full}|T], Init) -> + do_load_module(Mod, Beam), + Init ! {self(),loaded,[{Mod,Full}]}, + load_rest(T, Init); +load_rest([], _) -> ok. +prepare_loading_fun() -> + fun(Mod, FullName, Beam) -> + case erlang:prepare_loading(Mod, Beam) of + Prepared when is_binary(Prepared) -> + case erlang:has_prepared_code_on_load(Prepared) of + true -> + {ok,{on_load,Beam,FullName}}; + false -> + {ok,{prepared,Prepared,FullName}} + end; + {error,_}=Error -> + Error + end + end. + make_path(Pa, Pz, Path, Vars) -> append([Pa,append([fix_path(Path,Vars),Pz])]). @@ -1033,35 +1069,17 @@ start_it([_|_]=MFA) -> [M,F|Args] -> M:F(Args) % Args is a list end. -%% -%% Fetch a module and load it into the system. -%% -load_mod(Mod, File) -> - case erlang:module_loaded(Mod) of - false -> - case erl_prim_loader:get_file(File) of - {ok,BinCode,FullName} -> - load_mod_code(Mod, BinCode, FullName); - _ -> - exit({'cannot load',Mod,get_file}) - end; - _ -> % Already loaded. - {ok,File} - end. +%% Load a module. -load_mod_code(Mod, BinCode, FullName) -> - case erlang:module_loaded(Mod) of - false -> - case erlang:load_module(Mod, BinCode) of - {module,Mod} -> {ok,FullName}; - {error,on_load} -> - ?ON_LOAD_HANDLER ! {loaded,Mod}, - {ok,FullName}; - Other -> - exit({'cannot load',Mod,Other}) - end; - _ -> % Already loaded. - {ok,FullName} +do_load_module(Mod, BinCode) -> + case erlang:load_module(Mod, BinCode) of + {module,Mod} -> + ok; + {error,on_load} -> + ?ON_LOAD_HANDLER ! {loaded,Mod}, + ok; + _ -> + error end. %% -------------------------------------------------------- |