database/sqlite
1
0
Fork 0
mirror of https://github.com/sqlite/sqlite.git synced 2025-07-27 20:41:58 +03:00
Code Activity

More work on how to configure the sqlite3 JS API bootstrapping process from higher-level code. Initial version of sqlite3-worker1-promiser, a Promise-based proxy for the Worker API #1.

Browse Source 
FossilOrigin-Name: b030f321bd5a38cdd5d6f6735f201afa62d30d2b0ba02e67f055b4895553a878
This commit is contained in:
stephan
2022-08-24 05:59:23 +00:00
parent efeee19a95
commit 9a34509a06
9 changed files with 537 additions and 204 deletions
Download Patch File Download Diff File Expand all files Collapse all files

45
ext/wasm/api/sqlite3-api-cleanup.js
View File

@ -18,44 +18,24 @@
'use strict';
if('undefined' !== typeof Module){ // presumably an Emscripten build
/**
Replace sqlite3ApiBootstrap() with a variant which plugs in the
Emscripten-based config for all config options which the client
does not provide.
Install a suitable default configuration for sqlite3ApiBootstrap().
*/
const SAB = self.sqlite3ApiBootstrap;
self.sqlite3ApiBootstrap = function(apiConfig){
apiConfig = apiConfig || {};
const configDefaults = {
Module: Module /* ==> Emscripten-style Module object. Currently
needs to be exposed here for test code. NOT part
of the public API. */,
exports: Module['asm'],
memory: Module.wasmMemory /* gets set if built with -sIMPORT_MEMORY */
};
const config = {};
Object.keys(configDefaults).forEach(function(k){
config[k] = Object.getOwnPropertyDescriptor(apiConfig, k)
? apiConfig[k] : configDefaults[k];
});
// Copy over any properties apiConfig defines but configDefaults does not...
Object.keys(apiConfig).forEach(function(k){
if(!Object.getOwnPropertyDescriptor(config, k)){
config[k] = apiConfig[k];
}
});
return SAB(config);
};
const SABC = self.sqlite3ApiBootstrap.defaultConfig;
SABC.Module = Module /* ==> Current needs to be exposed here for test code. NOT part
of the public API. */;
SABC.exports = Module['asm'];
SABC.memory = Module.wasmMemory /* gets set if built with -sIMPORT_MEMORY */;
/**
For current (2022-08-22) purposes, automatically call
sqlite3ApiBootstrap(). That decision will be revisited at some
point, as we really want client code to be able to call this to
configure certain parts. If the global sqliteApiConfig property
is available, it is assumed to be a config object for
sqlite3ApiBootstrap().
configure certain parts. Clients may modify
self.sqlite3ApiBootstrap.defaultConfig to tweak the default
configuration used by a no-args call to sqlite3ApiBootstrap().
*/
//console.warn("self.sqlite3ApiConfig = ",self.sqlite3ApiConfig);
const sqlite3 = self.sqlite3ApiBootstrap(self.sqlite3ApiConfig || Object.create(null));
const sqlite3 = self.sqlite3ApiBootstrap();
delete self.sqlite3ApiBootstrap;
if(self.location && +self.location.port > 1024){
@ -67,4 +47,9 @@ if('undefined' !== typeof Module){ // presumably an Emscripten build
delete sqlite3.capi.util /* arguable, but these are (currently) internal-use APIs */;
//console.warn("Module.sqlite3 =",Module.sqlite3);
Module.sqlite3 = sqlite3 /* Currently needed by test code and sqlite3-worker1.js */;
}else{
console.warn("This is not running in an Emscripten module context, so",
"self.sqlite3ApiBootstrap() is _not_ being called due to lack",
"of config info for the WASM environment.",
"It must be called manually.");
}