Thanks! Is there a working version for the current emscripten? I won't be using emscripten FS.
On Sunday, December 18, 2022 at 12:08:23 AM UTC-8 caiiiycuk wrote: > I also tried to do this, and it's work: > > https://groups.google.com/g/emscripten-discuss/c/IocUaiwWctQ/m/ItCLe5lVDQAJ > > The only problem is emscripten FS, you need keep fs state too (it might be > hard). > > вс, 18 дек. 2022 г. в 02:45, 'Sam Clegg' via emscripten-discuss < > emscripte...@googlegroups.com>: > >> Inside the instance there are wasm globals (emscripten doesn't make heavy >> use of them but they exist) and the indirect function table. >> >> On the JS there are a lot of potential things... but it sounds like you >> are planning to avoid them so maybe it won't be an issue for you. >> >> On Sat, Dec 17, 2022 at 1:58 PM Steve Dekorte <st...@dekorte.com> wrote: >> >>> >>> For my use case, I only want to use HTML/JS to start WASM and hand it a >>> canvas and events. Things like i/o contexts would have to be reconstructed >>> if possible. Is there anything else? >>> >>> On Dec 17, 2022, at 1:40 PM, 'Sam Clegg' via emscripten-discuss < >>> emscripte...@googlegroups.com> wrote: >>> >>> >>> Neat! That might work for the linear memory, but as I said in an >>> earlier reply there is more to the state of a running module than just its >>> memory. >>> >>> On Sat, Dec 17, 2022 at 10:40 AM Steve Dekorte <st...@dekorte.com> >>> wrote: >>> >>>> >>>> Just for fun, I tried asking ChatGPT: >>>> >>>> [[Please write some Javascript code which stores the state of a >>>> WebAssembly instance to a byte array.]] >>>> >>>> // First, create a WebAssembly instance and obtain a reference to its >>>> memory object >>>> const wasmInstance = new WebAssembly.Instance(wasmModule); >>>> const memory = wasmInstance.exports.memory; >>>> >>>> // Next, create a JavaScript typed array to hold the contents of the >>>> memory object >>>> const memoryArray = new Uint8Array(memory.buffer); >>>> >>>> // Finally, use the copy method to copy the contents of the memory >>>> object to the typed array >>>> memory.copy(memoryArray); >>>> >>>> [[Thanks. Could you also write some Javascript code which creates a new >>>> WebAssembly instance and uses this byte array to restore the previous >>>> state?]] >>>> >>>> // First, create a WebAssembly module using the WebAssembly.compile >>>> function >>>> const wasmModule = await WebAssembly.compile(wasmCode); >>>> >>>> // Next, create a new WebAssembly instance and obtain a reference to >>>> its memory object >>>> const wasmInstance = new WebAssembly.Instance(wasmModule); >>>> const memory = wasmInstance.exports.memory; >>>> >>>> // Use the copy method to copy the contents of the byte array into the >>>> memory object of the WebAssembly instance >>>> memory.copy(byteArray); >>>> >>>> // Now, the WebAssembly instance has been restored to the previous state >>>> >>>> //...It is important to note that the byte array must be the same size >>>> as the memory object of the WebAssembly instance, and it must contain a >>>> valid snapshot of the state of the WebAssembly instance. If the byte array >>>> is not the correct size or does not contain a valid snapshot, the >>>> WebAssembly instance may not be restored correctly. >>>> >>>> I haven’t had a chance to give it a try yet. Does it look reasonable? >>>> >>>> Steve >>>> >>>> >>>> -- >>>> You received this message because you are subscribed to the Google >>>> Groups "emscripten-discuss" group. >>>> To unsubscribe from this group and stop receiving emails from it, send >>>> an email to emscripten-disc...@googlegroups.com. >>>> To view this discussion on the web visit >>>> https://groups.google.com/d/msgid/emscripten-discuss/f1967bf2cf0d44dc90bd7557a64839f4%40smtp.hushmail.com >>>> . >>>> >>> -- >>> You received this message because you are subscribed to a topic in the >>> Google Groups "emscripten-discuss" group. >>> To unsubscribe from this topic, visit >>> https://groups.google.com/d/topic/emscripten-discuss/-b2JbVbsfo4/unsubscribe >>> . >>> To unsubscribe from this group and all its topics, send an email to >>> emscripten-disc...@googlegroups.com. >>> To view this discussion on the web visit >>> https://groups.google.com/d/msgid/emscripten-discuss/CAL_va28VFRxNwFGv2R6f2rDhYpTie0e8Pie%3Dt5hb4y2G5%3Dgzzw%40mail.gmail.com >>> >>> <https://groups.google.com/d/msgid/emscripten-discuss/CAL_va28VFRxNwFGv2R6f2rDhYpTie0e8Pie%3Dt5hb4y2G5%3Dgzzw%40mail.gmail.com?utm_medium=email&utm_source=footer> >>> . >>> >>> -- >>> You received this message because you are subscribed to the Google >>> Groups "emscripten-discuss" group. >>> To unsubscribe from this group and stop receiving emails from it, send >>> an email to emscripten-disc...@googlegroups.com. >>> To view this discussion on the web visit >>> https://groups.google.com/d/msgid/emscripten-discuss/305a50dba3817de2b1b876b9ca9a1a58%40smtp.hushmail.com >>> >>> <https://groups.google.com/d/msgid/emscripten-discuss/305a50dba3817de2b1b876b9ca9a1a58%40smtp.hushmail.com?utm_medium=email&utm_source=footer> >>> . >>> >> -- >> You received this message because you are subscribed to the Google Groups >> "emscripten-discuss" group. >> To unsubscribe from this group and stop receiving emails from it, send an >> email to emscripten-disc...@googlegroups.com. >> > To view this discussion on the web visit >> https://groups.google.com/d/msgid/emscripten-discuss/CAL_va2_Uu4Ec6UdnnS2EBRUTEDbpu4%3Dk2VUUPq8d3mYTN6zcBg%40mail.gmail.com >> >> <https://groups.google.com/d/msgid/emscripten-discuss/CAL_va2_Uu4Ec6UdnnS2EBRUTEDbpu4%3Dk2VUUPq8d3mYTN6zcBg%40mail.gmail.com?utm_medium=email&utm_source=footer> >> . >> > -- You received this message because you are subscribed to the Google Groups "emscripten-discuss" group. To unsubscribe from this group and stop receiving emails from it, send an email to emscripten-discuss+unsubscr...@googlegroups.com. To view this discussion on the web visit https://groups.google.com/d/msgid/emscripten-discuss/0cc51471-7ec7-4927-8a41-5396fcf96758n%40googlegroups.com.
