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Initial infrastructure for adding virtual table/table-valued function support to WASM.

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FossilOrigin-Name: c202d7a0398b9aabc2babba5c4c91a313f32bbf37549d419775642bb4aa3936a
This commit is contained in:
stephan
2022-12-05 05:30:03 +00:00
parent 95ade3bdb9
commit e177447972
7 changed files with 269 additions and 67 deletions
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48
ext/wasm/api/sqlite3-api-glue.js
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@ -603,13 +603,16 @@ self.sqlite3ApiBootstrap.initializers.push(function(sqlite3){
}
wasm.ctype = JSON.parse(wasm.cstringToJs(cJson));
//console.debug('wasm.ctype length =',wasm.cstrlen(cJson));
for(const t of ['access', 'blobFinalizers', 'dataTypes',
'encodings', 'fcntl', 'flock', 'ioCap',
'limits',
'openFlags', 'prepareFlags', 'resultCodes',
'serialize', 'syncFlags', 'trace', 'udfFlags',
'version'
]){
const defineGroups = ['access', 'blobFinalizers', 'dataTypes',
'encodings', 'fcntl', 'flock', 'ioCap',
'limits',
'openFlags', 'prepareFlags', 'resultCodes',
'serialize', 'syncFlags', 'trace', 'udfFlags',
'version' ];
if(wasm.bigIntEnabled){
defineGroups.push('vtab');
}
for(const t of defineGroups){
for(const e of Object.entries(wasm.ctype[t])){
// ^^^ [k,v] there triggers a buggy code transformation via
// one of the Emscripten-driven optimizers.
@ -629,19 +632,33 @@ self.sqlite3ApiBootstrap.initializers.push(function(sqlite3){
capi.sqlite3_js_rc_str = (rc)=>__rcMap[rc];
/* Bind all registered C-side structs... */
const notThese = Object.assign(Object.create(null),{
// Structs NOT to register
WasmTestStruct: true
});
if(!util.isUIThread()){
// For each struct to NOT register, map its name to false:
WasmTestStruct: true,
/* We remove the kvvfs VFS from Worker threads below. */
notThese.sqlite3_kvvfs_methods = true;
}
sqlite3_kvvfs_methods: !util.isUIThread(),
sqlite3_index_info: !wasm.bigIntEnabled,
sqlite3_index_constraint: !wasm.bigIntEnabled,
sqlite3_index_orderby: !wasm.bigIntEnabled,
sqlite3_index_constraint_usage: !wasm.bigIntEnabled
});
for(const s of wasm.ctype.structs){
if(!notThese[s.name]){
capi[s.name] = sqlite3.StructBinder(s);
}
}
}/*end C constant imports*/
if(capi.sqlite3_index_info){
/* Move these inner structs into sqlite3_index_info. Binding
** them to WASM requires that we create global-scope structs to
** model them with, but those are no longer needed after we've
** passed them to StructBinder. */
for(const k of ['sqlite3_index_constraint',
'sqlite3_index_orderby',
'sqlite3_index_constraint_usage']){
capi.sqlite3_index_info[k] = capi[k];
delete capi[k];
}
}
}/*end C constant and struct imports*/
const pKvvfs = capi.sqlite3_vfs_find("kvvfs");
if( pKvvfs ){/* kvvfs-specific glue */
@ -652,8 +669,7 @@ self.sqlite3ApiBootstrap.initializers.push(function(sqlite3){
delete capi.sqlite3_kvvfs_methods;
const kvvfsMakeKey = wasm.exports.sqlite3_wasm_kvvfsMakeKeyOnPstack,
pstack = wasm.pstack,
pAllocRaw = wasm.exports.sqlite3_wasm_pstack_alloc;
pstack = wasm.pstack;
const kvvfsStorage = (zClass)=>
((115/*=='s'*/===wasm.getMemValue(zClass))