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Add sqlite3_wasm_vfs_create_file() to replace Emscripten's FS.createDataFile() in a (mostly) VFS-agnostic way. Add a test for worker1's export (to bytearray) support. Re-add worker1 open-from-bytearray using sqlite3_wasm_vfs_create_file() but it's untested (requires a new interactive test app or maybe reconsideration).

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FossilOrigin-Name: b35e1225c91a3cadc0d25af1e4e790237256d194990faa13190e343ed03e11c5
This commit is contained in:
stephan
2022-11-02 11:53:31 +00:00
parent faff0410dc
commit f45c33701d
10 changed files with 264 additions and 66 deletions
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75
ext/wasm/api/sqlite3-api-prologue.js
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@ -162,33 +162,6 @@ self.sqlite3ApiBootstrap = function sqlite3ApiBootstrap(
}
});
/**
An Error subclass specifically for reporting DB-level errors and
enabling clients to unambiguously identify such exceptions.
The C-level APIs never throw, but some of the higher-level
C-style APIs do and the object-oriented APIs use exceptions
exclusively to report errors.
*/
class SQLite3Error extends Error {
/**
Constructs this object with a message equal to all arguments
concatenated with a space between each one. As a special case,
if it's passed only a single integer argument, the string form
of that argument is the result of
sqlite3.capi.sqlite3_js_rc_str() or (if that returns falsy), a
synthesized string which contains that integer.
*/
constructor(...args){
if(1===args.length && 'number'===typeof args[0] && args[0]===(args[0] | 0)){
super((capi.sqlite3_js_rc_str && capi.sqlite3_js_rc_str(args[0]))
|| ("Unknown result code #"+args[0]));
}else{
super(args.join(' '));
}
this.name = 'SQLite3Error';
}
};
/**
The main sqlite3 binding API gets installed into this object,
mimicking the C API as closely as we can. The numerous members
@ -219,6 +192,52 @@ self.sqlite3ApiBootstrap = function sqlite3ApiBootstrap(
*/
const wasm = Object.create(null);
/** Internal helper for SQLite3Error ctor. */
const __rcStr = (rc)=>{
return (capi.sqlite3_js_rc_str && capi.sqlite3_js_rc_str(rc))
|| ("Unknown result code #"+rc);
};
/** Internal helper for SQLite3Error ctor. */
const __isInt = (n)=>'number'===typeof n && n===(n | 0);
/**
An Error subclass specifically for reporting DB-level errors and
enabling clients to unambiguously identify such exceptions.
The C-level APIs never throw, but some of the higher-level
C-style APIs do and the object-oriented APIs use exceptions
exclusively to report errors.
*/
class SQLite3Error extends Error {
/**
Constructs this object with a message depending on its arguments:
- If it's passed only a single integer argument, it is assumed
to be an sqlite3 C API result code. The message becomes the
result of sqlite3.capi.sqlite3_js_rc_str() or (if that returns
falsy) a synthesized string which contains that integer.
- If passed 2 arguments and the 2nd is a object, it bevaves
like the Error(string,object) constructor except that the first
argument is subject to the is-integer semantics from the
previous point.
- Else all arguments are concatenated with a space between each
one, using args.join(' '), to create the error message.
*/
constructor(...args){
if(1===args.length && __isInt(args[0])){
super(__rcStr(args[0]));
}else if(2===args.length && 'object'===typeof args){
if(__isInt(args[0])) super(__rcStr(args[0]), args[1]);
else super(...args);
}else{
super(args.join(' '));
}
this.name = 'SQLite3Error';
}
};
/**
Functionally equivalent to the SQLite3Error constructor but may
be used as part of an expression, e.g.:
@ -959,6 +978,8 @@ self.sqlite3ApiBootstrap = function sqlite3ApiBootstrap(
wasm.bindingSignatures.wasm = [
["sqlite3_wasm_db_reset", "int", "sqlite3*"],
["sqlite3_wasm_db_vfs", "sqlite3_vfs*", "sqlite3*","string"],
["sqlite3_wasm_vfs_create_file", "int",
"sqlite3_vfs*","string","*", "int"],
["sqlite3_wasm_vfs_unlink", "int", "sqlite3_vfs*","string"]
];