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fixes with memory, also free

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This commit is contained in:
NikVolf
2017-04-25 14:35:49 +03:00
parent 411e9e9c64
commit c8a30f9138
1 changed files with 56 additions and 8 deletions
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runner/index.html
+56 -8
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@@ -129,6 +129,10 @@
return instance.exports._malloc;
}
self.resolveFree = function(instance) {
return instance.exports._free;
}
self.gas = function(val) {
self.gasCounter += val;
}
@@ -138,28 +142,47 @@
// call descriptor size
let ptr = alloc(16);
let arg_ptr = alloc(args.length);
let dataView = new DataView(self.memory.buffer);
dataView.setInt32(ptr, arg_ptr, true);
dataView.setInt32(ptr+4, args.length, true);
for (var i = 0; i < args.length; i++) {
dataView.setInt8(arg_ptr+i, args[i], false);
var arg_ptr = false;
if (args.length > 0) {
arg_ptr = alloc(args.length);
dataView.setInt32(ptr, arg_ptr, true);
dataView.setInt32(ptr+4, args.length, true);
for (var i = 0; i < args.length; i++) {
dataView.setInt8(arg_ptr+i, args[i], false);
}
} else {
dataView.setInt32(ptr, 0, true);
dataView.setInt32(ptr+4, 0, true);
}
// zero result
dataView.setInt32(ptr+8, 0, true);
dataView.setInt32(ptr+12, 0, true);
self.gasCounter = 0;
instance.exports._call(ptr);
let result_ptr = dataView.getInt32(ptr+8, true);
let result_length = dataView.getInt32(ptr+12, true);
let free = self.resolveFree(instance);
let result = [];
if (result_ptr != 0) {
for (var i = 0; i < result_length; i++) {
result.push(dataView.getInt8(result_ptr + i));
}
}
arg_ptr && (free(arg_ptr));
result_ptr && (free(result_ptr));
free(ptr);
return result;
}
@@ -243,11 +266,13 @@
var button = document.getElementById('do-call');
button.value = 'Execute call';
button.addEventListener('click', function() {
button.setAttribute("disabled", "1");
let args = strToArray(document.getElementById("context").value);
let result = runtime.call(instance, args);
document.getElementById("result").value = arrayToStr(result);
document.getElementById("storage").value = arrayToStr(runtime.storage.toArr());
document.getElementById("gas").innerHTML = "Gas used: <b>" + runtime.gasCounter + "</b>";
button.removeAttribute("disabled");
}, false);
}
);
@@ -255,9 +280,31 @@
</script>
</head>
<body>
<div style="position: absolute; margin-top: 24px; top: 0px; left: 600px; height: 300px; width: 600px">
<textarea readonly style="width: 100%; height: 100%; padding: 8px; resize: none">
pub fn call(descriptor: *mut u8) {
// This initializes safe wrapper for contract input and output
let mut ctx = CallArgs::from_raw(descriptor);
// Copies all contract input data to the separate buffer
let data = ctx.context().to_vec();
// Appends all input to the storage (as it is a logger contract)
let _ = storage::append(&data);
// Returns all that passed to this contract as an output
*ctx.result_mut() = data;
// Saves the wrapper state to commit return stream
ctx.save(descriptor);
}
</textarea>
<a href="https://github.com/NikVolf/wasm-tools/blob/master/samples/logger_contract.rs">Full source with preamble</a>
</div>
<div>
<label for="context" style="display: block">Input</label>
<textarea style="width: 480px; height: 96px; margin-bottom: 24px; resize: none" id="context">[]</textarea>
<textarea style="width: 480px; height: 96px; margin-bottom: 24px; resize: none" id="context">[10, 12, 16]</textarea>
</div>
<div>
@@ -276,7 +323,8 @@
<div style="height: 5px; margin-top: 5px; border-top: 1px solid black"></div>
<input type="button" id="do-call" value="(waiting for WebAssembly)"></input>
<input type="button" id="do-call" value="(waiting for WebAssembly)" style="background-color: rgb(240, 64, 64); color: white; font-size: 120%" ></input>
<span id="gas" style="margin-left: 32px">Gas cost: <b>0</b></span>
</body>
</html>