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aad-assignment-1
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Better usability in browser 

Signed-off-by: Tiago Garcia <tiago.rgarcia@ua.pt>
This commit is contained in:
Tiago Garcia 2025-11-16 19:59:50 +00:00
parent fa06494b59
commit a906816cd4
Signed by: TiagoRG
GPG Key ID: DFCD48E3F420DB42
3 changed files with 170 additions and 13 deletions
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41
aad_coin_miner_wasm.c
View File

@ -24,6 +24,8 @@ static volatile int keep_running = 1;
static u64_t total_attempts = 0;
static u32_t coins_found = 0;
static double mining_start_time = 0;
static double pause_time_offset = 0; // Track paused time
static double last_pause_time = 0; // When mining was paused
static u32_t found_coins[1024][14]; // Store up to 1024 found coins
static u32_t found_coins_count = 0;
@ -158,8 +160,20 @@ void get_statistics(u64_t *attempts, u32_t *coins, double *hash_rate, double *el
{
*attempts = total_attempts;
*coins = coins_found;
*elapsed_time = get_time() - mining_start_time;
*hash_rate = (*elapsed_time > 0) ? (total_attempts / *elapsed_time) : 0;
double current_time = get_time();
double actual_elapsed;
if(!keep_running && last_pause_time > 0) {
// If paused, use the paused time
actual_elapsed = last_pause_time - mining_start_time - pause_time_offset;
} else {
// If running, calculate normally
actual_elapsed = current_time - mining_start_time - pause_time_offset;
}
*elapsed_time = actual_elapsed;
*hash_rate = (actual_elapsed > 0) ? (total_attempts / actual_elapsed) : 0;
}
//
@ -170,7 +184,26 @@ EMSCRIPTEN_KEEPALIVE
#endif
void stop_mining()
{
keep_running = 0;
if(keep_running) {
keep_running = 0;
last_pause_time = get_time();
}
}
//
// Resume mining
//
#ifdef __EMSCRIPTEN__
EMSCRIPTEN_KEEPALIVE
#endif
void resume_mining()
{
if(!keep_running && last_pause_time > 0) {
double pause_duration = get_time() - last_pause_time;
pause_time_offset += pause_duration;
keep_running = 1;
last_pause_time = 0;
}
}
//
@ -209,6 +242,8 @@ void reset_mining()
total_attempts = 0;
coins_found = 0;
found_coins_count = 0;
pause_time_offset = 0;
last_pause_time = 0;
mining_start_time = get_time();
}

139
index.html
View File

@ -6,6 +6,8 @@
body {
font-family: monospace;
padding: 20px;
max-width: 1200px;
margin: 0 auto;
}
button {
padding: 10px 20px;
@ -17,6 +19,24 @@
padding: 10px;
background: #f0f0f0;
border-radius: 5px;
box-sizing: border-box;
}
#coins-container {
margin-top: 20px;
}
#coins {
width: 100%;
height: 300px;
padding: 10px;
background: #f9f9f9;
border: 2px solid #ccc;
border-radius: 5px;
font-family: monospace;
font-size: 12px;
overflow-y: auto;
white-space: pre-wrap;
word-wrap: break-word;
box-sizing: border-box;
}
.control-group {
margin: 10px 0;
@ -25,6 +45,17 @@
display: inline-block;
width: 200px;
}
h2 {
margin-top: 20px;
margin-bottom: 10px;
}
.coin-entry {
color: #006400;
font-weight: bold;
}
.coin-data {
color: #000080;
}
</style>
</head>
<body>
@ -40,16 +71,25 @@
<button id="start">Start Mining</button>
<button id="stop">Stop Mining</button>
<button id="reset">Reset</button>
<button id="clearCoins">Clear Coins Display</button>
<div id="stats">
Waiting to start...
</div>
<script src="aad_coin_miner_wasm.js"></script>
<div id="coins-container">
<h2>Found Coins (<span id="coin-count">0</span>)</h2>
<div id="coins"></div>
</div>
<script src="coin_miner_wasm.js"></script>
<script>
let mining = false;
let Module;
let miningInterval;
let updateInterval;
let lastDisplayedCoinCount = 0;
let pausedStats = false;
CoinMinerModule().then(mod => {
Module = mod;
@ -58,6 +98,8 @@
document.getElementById('start').onclick = () => {
if (!mining) {
mining = true;
Module._resume_mining();
pausedStats = false;
console.log('Starting mining...');
startMining();
}
@ -68,27 +110,111 @@
Module._stop_mining();
clearInterval(miningInterval);
clearInterval(updateInterval);
updateStats();
let currentHTML = document.getElementById('stats').innerHTML;
document.getElementById('stats').innerHTML = currentHTML.replace('Mining Statistics:', 'Mining Statistics (PAUSED):');
pausedStats = true;
console.log('Mining stopped');
};
document.getElementById('reset').onclick = () => {
Module._reset_mining();
mining = false;
pausedStats = false;
clearInterval(miningInterval);
clearInterval(updateInterval);
lastDisplayedCoinCount = 0;
document.getElementById('stats').innerHTML = 'Reset complete. Click Start to begin.';
document.getElementById('coins').innerHTML = '';
document.getElementById('coin-count').textContent = '0';
console.log('Mining reset');
};
document.getElementById('clearCoins').onclick = () => {
document.getElementById('coins').innerHTML = '';
console.log('Coins display cleared');
};
function coinToString(coinPtr) {
let coinStr = '';
for (let i = 0; i < 55; i++) {
const byteIdx = i ^ 3;
const wordIdx = Math.floor(byteIdx / 4);
const byteInWord = byteIdx % 4;
const word = Module.getValue(coinPtr + wordIdx * 4, 'i32');
const byte = (word >> (byteInWord * 8)) & 0xFF;
if (byte >= 32 && byte <= 126) {
coinStr += String.fromCharCode(byte);
} else if (byte === 10) {
coinStr += '\\n';
} else if (byte === 0x80) {
coinStr += '[0x80]';
} else {
coinStr += `[0x${byte.toString(16).padStart(2, '0')}]`;
}
}
return coinStr;
}
function displayNewCoins() {
const totalCoins = Module._get_found_coins_count();
if (totalCoins > lastDisplayedCoinCount) {
const coinsDiv = document.getElementById('coins');
for (let i = lastDisplayedCoinCount; i < totalCoins; i++) {
const coinPtr = Module._get_found_coin(i);
if (coinPtr !== 0) {
const coinStr = coinToString(coinPtr);
const timestamp = new Date().toLocaleTimeString();
const entry = document.createElement('div');
entry.innerHTML = `<span class="coin-entry">[${timestamp}] Coin #${i + 1}:</span> <span class="coin-data">${coinStr}</span>`;
coinsDiv.appendChild(entry);
coinsDiv.scrollTop = coinsDiv.scrollHeight;
}
}
lastDisplayedCoinCount = totalCoins;
document.getElementById('coin-count').textContent = totalCoins;
}
}
function updateStats() {
const attemptsPtr = Module._malloc(8);
const coinsPtr = Module._malloc(4);
const hashRatePtr = Module._malloc(8);
const elapsedPtr = Module._malloc(8);
// Zero-initialize the memory before calling
Module.setValue(attemptsPtr, 0, 'i32');
Module.setValue(attemptsPtr + 4, 0, 'i32');
Module._get_statistics(attemptsPtr, coinsPtr, hashRatePtr, elapsedPtr);
const attempts = Module.getValue(attemptsPtr, 'i64');
// Read 64-bit unsigned value correctly
// On little-endian, low 32 bits come first
const attemptsLowUnsigned = Module.getValue(attemptsPtr, 'i32') >>> 0;
const attemptsHighUnsigned = Module.getValue(attemptsPtr + 4, 'i32') >>> 0;
// Combine - for display purposes, if high part is 0, just show low part
let attempts;
if (attemptsHighUnsigned === 0) {
attempts = attemptsLowUnsigned;
} else {
// Use BigInt for values > 32 bits
const low = BigInt(attemptsLowUnsigned);
const high = BigInt(attemptsHighUnsigned);
attempts = (high * BigInt(4294967296)) + low;
}
const coins = Module.getValue(coinsPtr, 'i32');
const hashRate = Module.getValue(hashRatePtr, 'double');
const elapsed = Module.getValue(elapsedPtr, 'double');
@ -103,20 +229,16 @@
Attempts: ${attempts.toString()}<br>
Coins Found: ${coins}<br>
Hash Rate: ${(hashRate / 1e6).toFixed(2)} MH/s<br>
Elapsed Time: ${elapsed.toFixed(2)} seconds<br>
Elapsed Time: ${elapsed.toFixed(2)} seconds
`;
const coinsFound = Module._get_found_coins_count();
if (coinsFound > 0) {
console.log(`Total coins found: ${coinsFound}`);
}
displayNewCoins();
}
function startMining() {
const batchSize = parseInt(document.getElementById('batchSize').value);
const updateMs = parseInt(document.getElementById('updateInterval').value);
// Mine continuously using setInterval for larger batches
miningInterval = setInterval(() => {
if (!mining) {
clearInterval(miningInterval);
@ -125,7 +247,6 @@
Module._mine_coins_wasm(batchSize);
}, 0);
// Update stats periodically
updateInterval = setInterval(updateStats, updateMs);
}
}).catch(err => {

3
makefile
View File

@ -43,6 +43,7 @@ clean:
rm -f sha1_tests
rm -f sha1_cuda_test sha1_cuda_kernel.cubin
rm -f coin_miner_cpu coin_miner_simd coin_miner_cuda coin_miner_cuda_kernel.cubin
rm -f coin_miner_wasm.js coin_miner_wasm.wasm
rm -f benchmark
rm -f a.out
@ -85,7 +86,7 @@ coin_miner_cuda: aad_coin_miner_cuda.c coin_miner_cuda_kernel.cubin aad_sha1.h a
cc -march=native -Wall -Wshadow -Werror -O3 -I$(CUDA_DIR)/include $< -o $@ -lcuda
coin_miner_wasm: aad_coin_miner_wasm.c aad_sha1.h aad_sha1_cpu.h aad_sha1_wasm.h aad_data_types.h aad_utilities.h aad_vault.h makefile
emcc -O3 -flto -o aad_coin_miner_wasm.js aad_coin_miner_wasm.c \
emcc -O3 -flto -o coin_miner_wasm.js aad_coin_miner_wasm.c \
-s WASM=1 \
-s EXPORTED_FUNCTIONS='["_mine_coins_wasm","_get_statistics","_stop_mining","_reset_mining","_get_found_coin","_get_found_coins_count","_malloc","_free"]' \
-s EXPORTED_RUNTIME_METHODS='["cwrap","ccall","getValue","setValue"]' \