forked from mirrors/gecko-dev
323 lines
9.6 KiB
JavaScript
323 lines
9.6 KiB
JavaScript
/* This Source Code Form is subject to the terms of the Mozilla Public
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* License, v. 2.0. If a copy of the MPL was not distributed with this
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* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
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/**
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* This file defines an Sqlite object containing js-ctypes bindings for
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* sqlite3. It should be included from a worker thread using require.
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*
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* It serves the following purposes:
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* - opens libxul;
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* - defines sqlite3 API functions;
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* - defines the necessary sqlite3 types.
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*/
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"use strict";
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importScripts("resource://gre/modules/workers/require.js");
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var SharedAll = require(
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"resource://gre/modules/osfile/osfile_shared_allthreads.jsm");
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// Open the sqlite3 library.
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var path;
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if (SharedAll.Constants.Sys.Name === "Android") {
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path = ctypes.libraryName("sqlite3");
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} else if (SharedAll.Constants.Win) {
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path = ctypes.libraryName("nss3");
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} else {
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path = SharedAll.Constants.Path.libxul;
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}
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var lib;
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try {
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lib = ctypes.open(path);
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} catch (ex) {
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throw new Error("Could not open system library: " + ex.message);
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}
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var declareLazyFFI = SharedAll.declareLazyFFI;
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var Type = Object.create(SharedAll.Type);
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/**
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* Opaque Structure |sqlite3_ptr|.
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* |sqlite3_ptr| is equivalent to a void*.
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*/
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Type.sqlite3_ptr = Type.voidptr_t.withName("sqlite3_ptr");
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/**
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* |sqlite3_stmt_ptr| an instance of an object representing a single SQL
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* statement.
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* |sqlite3_stmt_ptr| is equivalent to a void*.
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*/
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Type.sqlite3_stmt_ptr = Type.voidptr_t.withName("sqlite3_stmt_ptr");
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/**
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* |sqlite3_destructor_ptr| a constant defining a special destructor behaviour.
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* |sqlite3_destructor_ptr| is equivalent to a void*.
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*/
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Type.sqlite3_destructor_ptr = Type.voidptr_t.withName(
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"sqlite3_destructor_ptr");
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/**
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* A C double.
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*/
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Type.double = new SharedAll.Type("double", ctypes.double);
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/**
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* |sqlite3_int64| typedef for 64-bit integer.
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*/
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Type.sqlite3_int64 = Type.int64_t.withName("sqlite3_int64");
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/**
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* Sqlite3 constants.
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*/
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var Constants = {};
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/**
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* |SQLITE_STATIC| a special value for the destructor that is passed as an
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* argument to routines like bind_blob, bind_text and bind_text16. It means that
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* the content pointer is constant and will never change and does need to be
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* destroyed.
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*/
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Constants.SQLITE_STATIC = Type.sqlite3_destructor_ptr.implementation(0);
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/**
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* |SQLITE_TRANSIENT| a special value for the destructor that is passed as an
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* argument to routines like bind_blob, bind_text and bind_text16. It means that
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* the content will likely change in the near future and that SQLite should make
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* its own private copy of the content before returning.
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*/
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Constants.SQLITE_TRANSIENT = Type.sqlite3_destructor_ptr.implementation(-1);
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/**
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* |SQLITE_OK|
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* Successful result.
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*/
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Constants.SQLITE_OK = 0;
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/**
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* |SQLITE_ROW|
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* sqlite3_step() has another row ready.
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*/
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Constants.SQLITE_ROW = 100;
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/**
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* |SQLITE_DONE|
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* sqlite3_step() has finished executing.
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*/
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Constants.SQLITE_DONE = 101;
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var Sqlite3 = {
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Constants: Constants,
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Type: Type
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};
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declareLazyFFI(Sqlite3, "open", lib, "sqlite3_open", null,
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/*return*/ Type.int,
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/*path*/ Type.char.in_ptr,
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/*db handle*/ Type.sqlite3_ptr.out_ptr);
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declareLazyFFI(Sqlite3, "open_v2", lib, "sqlite3_open_v2", null,
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/*return*/ Type.int,
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/*path*/ Type.char.in_ptr,
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/*db handle*/ Type.sqlite3_ptr.out_ptr,
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/*flags*/ Type.int,
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/*VFS*/ Type.char.in_ptr);
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declareLazyFFI(Sqlite3, "close", lib, "sqlite3_close", null,
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/*return*/ Type.int,
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/*db handle*/ Type.sqlite3_ptr);
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declareLazyFFI(Sqlite3, "prepare_v2", lib, "sqlite3_prepare_v2", null,
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/*return*/ Type.int,
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/*db handle*/ Type.sqlite3_ptr,
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/*zSql*/ Type.char.in_ptr,
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/*nByte*/ Type.int,
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/*statement*/ Type.sqlite3_stmt_ptr.out_ptr,
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/*unused*/ Type.cstring.out_ptr);
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declareLazyFFI(Sqlite3, "step", lib, "sqlite3_step", null,
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/*return*/ Type.int,
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/*statement*/ Type.sqlite3_stmt_ptr);
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declareLazyFFI(Sqlite3, "finalize", lib, "sqlite3_finalize", null,
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/*return*/ Type.int,
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/*statement*/ Type.sqlite3_stmt_ptr);
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declareLazyFFI(Sqlite3, "reset", lib, "sqlite3_reset", null,
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/*return*/ Type.int,
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/*statement*/ Type.sqlite3_stmt_ptr);
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declareLazyFFI(Sqlite3, "column_int", lib, "sqlite3_column_int", null,
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/*return*/ Type.int,
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/*statement*/ Type.sqlite3_stmt_ptr,
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/*col*/ Type.int);
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declareLazyFFI(Sqlite3, "column_blob", lib, "sqlite3_column_blob", null,
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/*return*/ Type.voidptr_t,
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/*statement*/ Type.sqlite3_stmt_ptr,
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/*col*/ Type.int);
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declareLazyFFI(Sqlite3, "column_bytes", lib, "sqlite3_column_bytes", null,
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/*return*/ Type.int,
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/*statement*/ Type.sqlite3_stmt_ptr,
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/*col*/ Type.int);
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declareLazyFFI(Sqlite3, "column_bytes16", lib, "sqlite3_column_bytes16",
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null,
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/*return*/ Type.int,
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/*statement*/ Type.sqlite3_stmt_ptr,
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/*col*/ Type.int);
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declareLazyFFI(Sqlite3, "column_double", lib, "sqlite3_column_double", null,
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/*return*/ Type.double,
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/*statement*/ Type.sqlite3_stmt_ptr,
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/*col*/ Type.int);
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declareLazyFFI(Sqlite3, "column_int64", lib, "sqlite3_column_int64", null,
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/*return*/ Type.sqlite3_int64,
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/*statement*/ Type.sqlite3_stmt_ptr,
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/*col*/ Type.int);
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declareLazyFFI(Sqlite3, "column_text", lib, "sqlite3_column_text", null,
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/*return*/ Type.cstring,
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/*statement*/ Type.sqlite3_stmt_ptr,
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/*col*/ Type.int);
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declareLazyFFI(Sqlite3, "column_text16", lib, "sqlite3_column_text16", null,
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/*return*/ Type.wstring,
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/*statement*/ Type.sqlite3_stmt_ptr,
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/*col*/ Type.int);
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declareLazyFFI(Sqlite3, "bind_int", lib, "sqlite3_bind_int", null,
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/*return*/ Type.int,
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/*statement*/ Type.sqlite3_stmt_ptr,
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/*index*/ Type.int,
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/*value*/ Type.int);
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declareLazyFFI(Sqlite3, "bind_int64", lib, "sqlite3_bind_int64", null,
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/*return*/ Type.int,
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/*statement*/ Type.sqlite3_stmt_ptr,
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/*index*/ Type.int,
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/*value*/ Type.sqlite3_int64);
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declareLazyFFI(Sqlite3, "bind_double", lib, "sqlite3_bind_double", null,
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/*return*/ Type.int,
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/*statement*/ Type.sqlite3_stmt_ptr,
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/*index*/ Type.int,
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/*value*/ Type.double);
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declareLazyFFI(Sqlite3, "bind_null", lib, "sqlite3_bind_null", null,
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/*return*/ Type.int,
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/*statement*/ Type.sqlite3_stmt_ptr,
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/*index*/ Type.int);
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declareLazyFFI(Sqlite3, "bind_zeroblob", lib, "sqlite3_bind_zeroblob", null,
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/*return*/ Type.int,
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/*statement*/ Type.sqlite3_stmt_ptr,
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/*index*/ Type.int,
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/*nBytes*/ Type.int);
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declareLazyFFI(Sqlite3, "bind_text", lib, "sqlite3_bind_text", null,
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/*return*/ Type.int,
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/*statement*/ Type.sqlite3_stmt_ptr,
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/*index*/ Type.int,
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/*value*/ Type.cstring,
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/*nBytes*/ Type.int,
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/*destructor*/ Type.sqlite3_destructor_ptr);
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declareLazyFFI(Sqlite3, "bind_text16", lib, "sqlite3_bind_text16", null,
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/*return*/ Type.int,
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/*statement*/ Type.sqlite3_stmt_ptr,
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/*index*/ Type.int,
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/*value*/ Type.wstring,
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/*nBytes*/ Type.int,
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/*destructor*/ Type.sqlite3_destructor_ptr);
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declareLazyFFI(Sqlite3, "bind_blob", lib, "sqlite3_bind_blob", null,
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/*return*/ Type.int,
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/*statement*/ Type.sqlite3_stmt_ptr,
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/*index*/ Type.int,
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/*value*/ Type.voidptr_t,
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/*nBytes*/ Type.int,
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/*destructor*/ Type.sqlite3_destructor_ptr);
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module.exports = {
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get Constants() {
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return Sqlite3.Constants;
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},
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get Type() {
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return Sqlite3.Type;
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},
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get open() {
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return Sqlite3.open;
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},
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get open_v2() {
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return Sqlite3.open_v2;
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},
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get close() {
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return Sqlite3.close;
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},
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get prepare_v2() {
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return Sqlite3.prepare_v2;
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},
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get step() {
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return Sqlite3.step;
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},
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get finalize() {
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return Sqlite3.finalize;
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},
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get reset() {
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return Sqlite3.reset;
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},
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get column_int() {
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return Sqlite3.column_int;
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},
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get column_blob() {
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return Sqlite3.column_blob;
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},
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get column_bytes() {
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return Sqlite3.column_bytes;
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},
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get column_bytes16() {
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return Sqlite3.column_bytes16;
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},
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get column_double() {
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return Sqlite3.column_double;
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},
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get column_int64() {
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return Sqlite3.column_int64;
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},
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get column_text() {
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return Sqlite3.column_text;
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},
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get column_text16() {
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return Sqlite3.column_text16;
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},
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get bind_int() {
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return Sqlite3.bind_int;
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},
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get bind_int64() {
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return Sqlite3.bind_int64;
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},
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get bind_double() {
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return Sqlite3.bind_double;
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},
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get bind_null() {
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return Sqlite3.bind_null;
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},
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get bind_zeroblob() {
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return Sqlite3.bind_zeroblob;
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},
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get bind_text() {
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return Sqlite3.bind_text;
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},
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get bind_text16() {
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return Sqlite3.bind_text16;
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},
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get bind_blob() {
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return Sqlite3.bind_blob;
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}
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};
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