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Add optional zSchema argument to sqlite3_js_db_export().

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FossilOrigin-Name: 9c23644b1e5bf44bfb431a35fd1674c11ccb99e9eb0989f10175b0cb2a858eaa
This commit is contained in:
stephan
2022-11-23 21:03:22 +00:00
parent c32e16643d
commit 875db41afc
4 changed files with 31 additions and 24 deletions
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16
ext/wasm/api/sqlite3-api-prologue.js
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@ -1310,14 +1310,17 @@ self.sqlite3ApiBootstrap = function sqlite3ApiBootstrap(
Serializes the given `sqlite3*` pointer to a Uint8Array, as per
sqlite3_serialize(). On success it returns a Uint8Array. On
error it throws with a description of the problem.
schema is the schema to serialize. It may be a WASM C-string
pointer or a JS string. If it is falsy, it defaults to "main".
*/
capi.sqlite3_js_db_export = function(pDb){
capi.sqlite3_js_db_export = function(pDb, schema=0){
if(!pDb) toss3('Invalid sqlite3* argument.');
if(!wasm.bigIntEnabled) toss3('BigInt64 support is not enabled.');
const stack = wasm.pstack.pointer;
const scope = wasm.scopedAllocPush();
let pOut;
try{
const pSize = wasm.pstack.alloc(8/*i64*/ + wasm.ptrSizeof);
const pSize = wasm.scopedAlloc(8/*i64*/ + wasm.ptrSizeof);
const ppOut = pSize + 8;
/**
Maintenance reminder, since this cost a full hour of grief
@ -1326,8 +1329,11 @@ self.sqlite3ApiBootstrap = function sqlite3ApiBootstrap(
export reads a garbage size because it's not on an 8-byte
memory boundary!
*/
const zSchema = schema
? (wasm.isPtr(schema) ? schema : wasm.scopedAllocCString(''+schema))
: 0;
let rc = wasm.exports.sqlite3_wasm_db_serialize(
pDb, ppOut, pSize, 0
pDb, zSchema, ppOut, pSize, 0
);
if(rc){
toss3("Database serialization failed with code",
@ -1341,7 +1347,7 @@ self.sqlite3ApiBootstrap = function sqlite3ApiBootstrap(
return rc;
}finally{
if(pOut) wasm.exports.sqlite3_free(pOut);
wasm.pstack.restore(stack);
wasm.scopedAllocPop(scope);
}
};