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Added dirty versions of the backup api

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This commit is contained in:
Maas-Maarten Zeeman
2022-05-26 16:59:10 +02:00
parent 507e5407d8
commit 55303c13f4
5 changed files with 270 additions and 767 deletions
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68
src/esqlite3_nif.erl
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@@ -48,11 +48,11 @@
interrupt/1,
% backup_init/6,
% backup_step/5,
% backup_remaining/4,
% backup_pagecount/4,
% backup_finish/4,
backup_init/4,
backup_remaining/1,
backup_pagecount/1,
backup_step/2,
backup_finish/1,
memory_stats/1,
status/2
@@ -60,11 +60,10 @@
-type esqlite3() :: reference().
-type esqlite3_stmt() :: reference().
%-type esqlite3_backup() :: reference().
-type esqlite3_backup() :: reference().
-type sql() :: iodata().
-export_type([esqlite3/0, esqlite3_stmt/0, sql/0]).
%-export_type([esqlite3_backup/0]).
-export_type([esqlite3/0, esqlite3_stmt/0, esqlite3_backup/0, sql/0]).
-on_load(init/0).
@@ -156,24 +155,6 @@ step(_Statement) ->
reset(_Statement) ->
erlang:nif_error(nif_library_not_loaded).
%% @doc
%%
%-spec multi_step(esqlite3(), esqlite3_stmt(), pos_integer(), reference(), pid()) -> ok | {error, _}.
%multi_step(_Db, _Stmt, _Chunk_Size, _Ref, _Dest) ->
% erlang:nif_error(nif_library_not_loaded).
%% @doc
%%
%-spec reset(esqlite3(), esqlite3_stmt(), reference(), pid()) -> ok | {error, _}.
%reset(_Db, _Stmt, _Ref, _Dest) ->
% erlang:nif_error(nif_library_not_loaded).
%% @doc
%%
%-spec finalize(esqlite3(), esqlite3_stmt(), reference(), pid()) -> ok | {error, _}.
%finalize(_Db, _Stmt, _Ref, _Dest) ->
% erlang:nif_error(nif_library_not_loaded).
%% @doc Retrieve the column names of the prepared statement
%%
-spec column_names(esqlite3_stmt()) -> list(binary()) | {error, _}.
@@ -188,29 +169,28 @@ column_decltypes(_Stmt) ->
%% @doc Initialize a backup procedure of a database.
%-spec backup_init(esqlite3(), string(), esqlite3_stmt(), string(), reference(), pid()) -> ok | {error, _}.
%backup_init(_DestDb, _DestName, _SourceDb, _SourceName, _Ref, _Dest) ->
% erlang:nif_error(nif_library_not_loaded).
-spec backup_init(Destination, DestinationName, Source, SourceName) -> InitResult when
Destination :: esqlite3(),
DestinationName :: iodata(),
Source :: esqlite3(),
SourceName :: iodata(),
InitResult :: {ok, esqlite3_backup()} | {error, _}.
backup_init(_Dest, _DestName, _Src, _SrcName) ->
erlang:nif_error(nif_library_not_loaded).
%% @doc Do a backup step.
%-spec backup_step(esqlite3(), esqlite3_backup(), integer(), reference(), pid()) -> ok | {error, _}.
%backup_step(_Db, _Backup, _NPages, _Ref, _Dest) ->
% erlang:nif_error(nif_library_not_loaded).
%% @doc Get the amount of remaining pages which need to be backed up.
%-spec backup_remaining(esqlite3(), esqlite3_backup(), reference(), pid()) -> ok | {error, _}.
%backup_remaining(_Db, _Backup, _Ref, _Dest) ->
% erlang:nif_error(nif_library_not_loaded).
backup_remaining(_Backup) ->
erlang:nif_error(nif_library_not_loaded).
%% @doc Get the total number of pages which need to be backed up.
%-spec backup_pagecount(esqlite3(), esqlite3_backup(), reference(), pid()) -> ok | {error, _}.
%backup_pagecount(_Db, _Backup, _Ref, _Dest) ->
% erlang:nif_error(nif_library_not_loaded).
backup_pagecount(_Backup) ->
erlang:nif_error(nif_library_not_loaded).
%% @doc Finish the backup.
%-spec backup_finish(esqlite3(), esqlite3_backup(), reference(), pid()) -> ok | {error, _}.
%backup_finish(_Db, _Backup, _Ref, _Dest) ->
% erlang:nif_error(nif_library_not_loaded).
backup_step(_Backup, _PageCount) ->
erlang:nif_error(nif_library_not_loaded).
backup_finish(_Backup) ->
erlang:nif_error(nif_library_not_loaded).
%% @doc Interrupt all active queries.
-spec interrupt(esqlite3()) -> ok.