retrieve string from memory

apps/journal/src/lib.rs

@@ -1,9 +1,7 @@
-use std::ffi::CString;
-
 use wasm_bindgen::prelude::wasm_bindgen;
 
 #[wasm_bindgen]
 pub fn install() -> i32 {
-  panorama_app_sdk::register_endpoint("/hello");
+  panorama_app_sdk::register_endpoint("/get_todays_date");
   123
 }

crates/panorama-app-sdk/src/lib.rs

@@ -4,12 +4,14 @@ pub mod sys {
   use std::ffi::c_char;
 
   extern "C" {
-    pub fn register_endpoint(url: *const c_char);
+    pub fn register_endpoint(url_len: u64, url: *const c_char);
   }
 }
 
 pub fn register_endpoint(url: impl AsRef<str>) {
-  let url = CString::new(url.as_ref()).unwrap();
-  let result = unsafe { sys::register_endpoint(url.into_raw()) };
+  let url = url.as_ref();
+  let url_cstr = CString::new(url).unwrap();
+  let result =
+    unsafe { sys::register_endpoint(url.len() as u64, url_cstr.into_raw()) };
   println!("Result: {:?}", result);
 }

crates/panorama-core/src/state/apps.rs

@@ -106,30 +106,37 @@ impl AppState {
     let module = Module::new(&engine, &installer_program)?;
 
     let wasi = WasiCtxBuilder::new().inherit_stdio().inherit_args().build();
-    let mut store: Store<_> = Store::new(&engine, wasi);
-    let ty = MemoryType::new64(0, None);
-    let memory = Memory::new(&mut store, ty)?;
 
     let mut linker = Linker::new(&engine);
     linker.func_wrap(
       "env",
       "register_endpoint",
-      |caller: Caller<'_, _>, param: i32| {
-        println!("Got {} , from WebAssembly", param);
+      |mut caller: Caller<'_, _>, url_len: i64, url: i32| {
+        println!("WTF? {url_len} {url}");
+        let mem = caller.get_export("memory").and_then(|e| e.into_memory());
+        if let Some(mem) = mem {
+          let mut buffer = vec![0; url_len as usize];
+          mem.read(caller, url as usize, &mut buffer);
+          let string = String::from_utf8(buffer);
+          println!("{:?}", string);
+        }
         // println!("my host state is: {}", caller.data());
       },
     )?;
-    linker.func_wrap(
-      "env",
-      "abort",
-      |caller: Caller<'_, _>, param: i32, _: i32, _: i32, _: i32| {
-        println!("Oops, aborted.");
-      },
-    )?;
 
-    let instance = linker.instantiate(&mut store, &module)?;
-    let hello = instance.get_typed_func::<(), i32>(&mut store, "install")?;
-    hello.call(&mut store, ())?;
+    let mut store: Store<_> = Store::new(&engine, wasi);
+    let instance = linker
+      .instantiate(&mut store, &module)
+      .context("Could not instantiate")?;
+
+    instance.exports(&mut store).for_each(|export| {
+      println!("Export: {}", export.name());
+    });
+
+    let hello = instance
+      .get_typed_func::<(), i32>(&mut store, "install")
+      .context("Could not get typed function")?;
+    hello.call(&mut store, ()).context("Could not call")?;
 
     // let mut sources = Sources::new();
     // sources

crates/panorama-daemon/src/journal.rs

@@ -1,10 +1,7 @@
-use axum::{extract::State, routing::get, Json, Router};
-use chrono::Local;
-use serde_json::Value;
+use axum::{Router};
 use utoipa::OpenApi;
-use uuid::Uuid;
 
-use crate::{error::AppResult, AppState};
+use crate::{AppState};
 
 /// Node API
 #[derive(OpenApi)]

crates/panorama-daemon/src/mail.rs

@@ -1,8 +1,4 @@
-use axum::{extract::State, Json};
-use panorama_core::AppState;
-use serde_json::Value;
 
-use crate::error::AppResult;
 
 // pub async fn get_mail_config(
 //   State(state): State<AppState>,

crates/panorama-daemon/src/node.rs

@@ -1,25 +1,10 @@
-use std::{
-  collections::{BTreeMap, HashMap},
-  str::FromStr,
-};
 
 use axum::{
-  extract::{Path, Query, State},
-  http::StatusCode,
-  routing::{get, post, put},
-  Json, Router,
+  Router,
 };
-use chrono::{DateTime, Utc};
-use itertools::Itertools;
-use panorama_core::{
-  // state::node::{CreateOrUpdate, ExtraData},
-  NodeId,
-};
-use serde_json::Value;
-use utoipa::{OpenApi, ToSchema};
-use uuid::Uuid;
+use utoipa::{OpenApi};
 
-use crate::{error::AppResult, AppState};
+use crate::{AppState};
 
 /// Node API
 #[derive(OpenApi)]