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-rw-r--r--erts/emulator/beam/bif.tab6
-rw-r--r--erts/emulator/beam/erl_init.c101
-rw-r--r--erts/emulator/nifs/common/prim_file_nif.c2
-rw-r--r--erts/preloaded/ebin/erts_internal.beambin17636 -> 17864 bytes
-rw-r--r--erts/preloaded/ebin/prim_file.beambin28508 -> 28344 bytes
-rw-r--r--erts/preloaded/src/erts_internal.erl9
-rw-r--r--erts/preloaded/src/prim_file.erl23
7 files changed, 99 insertions, 42 deletions
diff --git a/erts/emulator/beam/bif.tab b/erts/emulator/beam/bif.tab
index d4ba90a61a..0e218811d8 100644
--- a/erts/emulator/beam/bif.tab
+++ b/erts/emulator/beam/bif.tab
@@ -725,3 +725,9 @@ bif erts_internal:counters_get/2
bif erts_internal:counters_add/3
bif erts_internal:counters_put/3
bif erts_internal:counters_info/1
+
+#
+# New in 21.2.3
+#
+
+bif erts_internal:spawn_system_process/3
diff --git a/erts/emulator/beam/erl_init.c b/erts/emulator/beam/erl_init.c
index 99e788c718..41bec17dfa 100644
--- a/erts/emulator/beam/erl_init.c
+++ b/erts/emulator/beam/erl_init.c
@@ -376,6 +376,27 @@ erl_init(int ncpu,
}
static Eterm
+erl_spawn_system_process(Process* parent, Eterm mod, Eterm func, Eterm args,
+ ErlSpawnOpts *so)
+{
+ Eterm res;
+ int arity;
+
+ ERTS_LC_ASSERT(ERTS_PROC_LOCK_MAIN & erts_proc_lc_my_proc_locks(parent));
+ arity = erts_list_length(args);
+
+ if (erts_find_function(mod, func, arity, erts_active_code_ix()) == NULL) {
+ erts_exit(ERTS_ERROR_EXIT, "No function %T:%T/%i\n", mod, func, arity);
+ }
+
+ so->flags |= SPO_SYSTEM_PROC;
+
+ res = erl_create_process(parent, mod, func, args, so);
+
+ return res;
+}
+
+static Eterm
erl_first_process_otp(char* modname, void* code, unsigned size, int argc, char** argv)
{
int i;
@@ -386,12 +407,6 @@ erl_first_process_otp(char* modname, void* code, unsigned size, int argc, char**
Process parent;
ErlSpawnOpts so;
Eterm env;
-
- start_mod = erts_atom_put((byte *) modname, sys_strlen(modname), ERTS_ATOM_ENC_LATIN1, 1);
- if (erts_find_function(start_mod, am_start, 2,
- erts_active_code_ix()) == NULL) {
- erts_exit(ERTS_ERROR_EXIT, "No function %s:start/2\n", modname);
- }
/*
* We need a dummy parent process to be able to call erl_create_process().
@@ -399,6 +414,7 @@ erl_first_process_otp(char* modname, void* code, unsigned size, int argc, char**
erts_init_empty_process(&parent);
erts_proc_lock(&parent, ERTS_PROC_LOCK_MAIN);
+
hp = HAlloc(&parent, argc*2 + 4);
args = NIL;
for (i = argc-1; i >= 0; i--) {
@@ -411,44 +427,73 @@ erl_first_process_otp(char* modname, void* code, unsigned size, int argc, char**
hp += 2;
args = CONS(hp, env, args);
- so.flags = erts_default_spo_flags|SPO_SYSTEM_PROC;
- res = erl_create_process(&parent, start_mod, am_start, args, &so);
+ start_mod = erts_atom_put((byte *) modname, sys_strlen(modname),
+ ERTS_ATOM_ENC_LATIN1, 1);
+
+ so.flags = erts_default_spo_flags;
+ res = erl_spawn_system_process(&parent, start_mod, am_start, args, &so);
+ ASSERT(is_internal_pid(res));
+
erts_proc_unlock(&parent, ERTS_PROC_LOCK_MAIN);
erts_cleanup_empty_process(&parent);
+
return res;
}
static Eterm
erl_system_process_otp(Eterm parent_pid, char* modname, int off_heap_msgq, int prio)
-{
- Eterm start_mod;
- Process* parent;
+{
+ Process *parent;
ErlSpawnOpts so;
- Eterm res;
-
- start_mod = erts_atom_put((byte *) modname, sys_strlen(modname), ERTS_ATOM_ENC_LATIN1, 1);
- if (erts_find_function(start_mod, am_start, 0,
- erts_active_code_ix()) == NULL) {
- erts_exit(ERTS_ERROR_EXIT, "No function %s:start/0\n", modname);
- }
+ Eterm mod, res;
parent = erts_pid2proc(NULL, 0, parent_pid, ERTS_PROC_LOCK_MAIN);
+ mod = erts_atom_put((byte *) modname, sys_strlen(modname),
+ ERTS_ATOM_ENC_LATIN1, 1);
+
+ so.flags = erts_default_spo_flags|SPO_USE_ARGS;
- so.flags = erts_default_spo_flags|SPO_SYSTEM_PROC|SPO_USE_ARGS;
- if (off_heap_msgq)
+ if (off_heap_msgq) {
so.flags |= SPO_OFF_HEAP_MSGQ;
- so.min_heap_size = H_MIN_SIZE;
- so.min_vheap_size = BIN_VH_MIN_SIZE;
- so.max_heap_size = H_MAX_SIZE;
- so.max_heap_flags = H_MAX_FLAGS;
- so.priority = prio;
- so.max_gen_gcs = (Uint16) erts_atomic32_read_nob(&erts_max_gen_gcs);
- so.scheduler = 0;
- res = erl_create_process(parent, start_mod, am_start, NIL, &so);
+ }
+
+ so.min_heap_size = H_MIN_SIZE;
+ so.min_vheap_size = BIN_VH_MIN_SIZE;
+ so.max_heap_size = H_MAX_SIZE;
+ so.max_heap_flags = H_MAX_FLAGS;
+ so.priority = prio;
+ so.max_gen_gcs = (Uint16) erts_atomic32_read_nob(&erts_max_gen_gcs);
+ so.scheduler = 0;
+
+ res = erl_spawn_system_process(parent, mod, am_start, NIL, &so);
+ ASSERT(is_internal_pid(res));
+
erts_proc_unlock(parent, ERTS_PROC_LOCK_MAIN);
+
return res;
}
+Eterm erts_internal_spawn_system_process_3(BIF_ALIST_3) {
+ Eterm mod, func, args, res;
+ ErlSpawnOpts so;
+
+ mod = BIF_ARG_1;
+ func = BIF_ARG_2;
+ args = BIF_ARG_3;
+
+ ASSERT(is_atom(mod));
+ ASSERT(is_atom(func));
+ ASSERT(erts_list_length(args) >= 0);
+
+ so.flags = erts_default_spo_flags;
+ res = erl_spawn_system_process(BIF_P, mod, func, args, &so);
+
+ if (is_non_value(res)) {
+ BIF_ERROR(BIF_P, so.error_code);
+ }
+
+ BIF_RET(res);
+}
Eterm
erts_preloaded(Process* p)
diff --git a/erts/emulator/nifs/common/prim_file_nif.c b/erts/emulator/nifs/common/prim_file_nif.c
index 5fff55b467..a78ee62677 100644
--- a/erts/emulator/nifs/common/prim_file_nif.c
+++ b/erts/emulator/nifs/common/prim_file_nif.c
@@ -38,7 +38,6 @@ static void unload(ErlNifEnv *env, void* priv_data);
static ErlNifResourceType *efile_resource_type;
-static ERL_NIF_TERM am_erts_prim_file;
static ERL_NIF_TERM am_close;
static ERL_NIF_TERM am_ok;
@@ -220,7 +219,6 @@ static int load(ErlNifEnv *env, void** priv_data, ERL_NIF_TERM prim_file_pid)
ASSERT(!"bad pid passed to prim_file_nif");
}
- am_erts_prim_file = enif_make_atom(env, "erts_prim_file");
am_close = enif_make_atom(env, "close");
am_ok = enif_make_atom(env, "ok");
diff --git a/erts/preloaded/ebin/erts_internal.beam b/erts/preloaded/ebin/erts_internal.beam
index 0bd24c3466..5b25ceeb12 100644
--- a/erts/preloaded/ebin/erts_internal.beam
+++ b/erts/preloaded/ebin/erts_internal.beam
Binary files differ
diff --git a/erts/preloaded/ebin/prim_file.beam b/erts/preloaded/ebin/prim_file.beam
index 1e72f70c65..09184af25e 100644
--- a/erts/preloaded/ebin/prim_file.beam
+++ b/erts/preloaded/ebin/prim_file.beam
Binary files differ
diff --git a/erts/preloaded/src/erts_internal.erl b/erts/preloaded/src/erts_internal.erl
index 8f29a569f2..305b524438 100644
--- a/erts/preloaded/src/erts_internal.erl
+++ b/erts/preloaded/src/erts_internal.erl
@@ -97,6 +97,8 @@
-export([counters_new/1, counters_get/2, counters_add/3,
counters_put/3, counters_info/1]).
+-export([spawn_system_process/3]).
+
%%
%% Await result of send to port
%%
@@ -726,3 +728,10 @@ counters_put(_Ref, _Ix, _Value) ->
-spec counters_info(reference()) -> #{}.
counters_info(_Ref) ->
erlang:nif_error(undef).
+
+-spec spawn_system_process(Mod, Func, Args) -> pid() when
+ Mod :: atom(),
+ Func :: atom(),
+ Args :: list().
+spawn_system_process(_Mod, _Func, _Args) ->
+ erlang:nif_error(undefined).
diff --git a/erts/preloaded/src/prim_file.erl b/erts/preloaded/src/prim_file.erl
index 5fc22bc582..0994e2a9f4 100644
--- a/erts/preloaded/src/prim_file.erl
+++ b/erts/preloaded/src/prim_file.erl
@@ -46,7 +46,7 @@
-define(MIN_READLINE_SIZE, 256).
-define(LARGEFILESIZE, (1 bsl 63)).
--export([copy/3]).
+-export([copy/3, start/0]).
-include("file_int.hrl").
@@ -85,14 +85,21 @@ is_translatable(_) ->
%% This is a janitor process used to close files whose controlling process has
%% died. The emulator will be torn down if this is killed.
-delayed_close_loop() ->
+start() ->
+ helper_loop().
+
+helper_loop() ->
receive
{close, FRef} when is_reference(FRef) -> delayed_close_nif(FRef);
_ -> ok
end,
- delayed_close_loop().
+ helper_loop().
-%%
+on_load() ->
+ %% This is spawned as a system process to prevent init:restart/0 from
+ %% killing it.
+ Pid = erts_internal:spawn_system_process(?MODULE, start, []),
+ ok = erlang:load_nif(atom_to_list(?MODULE), Pid).
%% Returns {error, Reason} | {ok, BytesCopied}
copy(#file_descriptor{module = ?MODULE} = Source,
@@ -103,14 +110,6 @@ copy(#file_descriptor{module = ?MODULE} = Source,
%% XXX Should be moved down to the driver for optimization.
file:copy_opened(Source, Dest, Length).
-on_load() ->
- Pid = spawn(fun() ->
- process_flag(trap_exit, true),
- delayed_close_loop()
- end),
- true = register(erts_prim_file, Pid),
- ok = erlang:load_nif(atom_to_list(?MODULE), Pid).
-
open(Name, Modes) ->
%% The try/catch pattern seen here is used throughout the file to adhere to
%% the public file interface, which has leaked through for ages because of
generated by cgit v1.2.3 (git 2.25.1) at 2024-12-12 21:32:25 +0000