read.html

<!DOCTYPE html>
<html>
<head>
  <title>Shared Memory Simulation</title>
  <style>
    /* CSS styles for the layout */
    #reader, #writer {
      margin-bottom: 10px;
    }
    #output {
      height: 100px;
      width: 300px;
      border: 1px solid black;
      overflow-y: scroll;
    }
  </style>
</head>
<body>
  <div>
    <h2>Shared Memory Simulation</h2>
    <div id="reader">
      <label for="reader-input">Reader:</label>
      <input type="text" id="reader-input" />
      <button onclick="readFromSharedMemory()">Read</button>
    </div>
    <div id="writer">
      <label for="writer-input">Writer:</label>
      <input type="text" id="writer-input" />
      <button onclick="writeToSharedMemory()">Write</button>
    </div>
    <div id="output">
      <h3>Shared Memory:</h3>
      <ul id="shared-memory-list"></ul>
    </div>
  </div>

  <script>
    // JavaScript code for shared memory simulation
    const sharedMemory = []; // Array to simulate shared memory

    function writeToSharedMemory() {
      const writerInput = document.getElementById("writer-input");
      const data = writerInput.value;

      // Add the data to shared memory
      sharedMemory.push(data);

      // Update the shared memory display
      const sharedMemoryList = document.getElementById("shared-memory-list");
      const listItem = document.createElement("li");
      listItem.textContent = data;
      sharedMemoryList.appendChild(listItem);

      writerInput.value = ""; // Clear the input field
    }

    function readFromSharedMemory() {
      const readerInput = document.getElementById("reader-input");
      const index = parseInt(readerInput.value);

      // Read data from shared memory based on the index
      const data = sharedMemory[index];

      // Display the read data
      const output = document.getElementById("output");
      output.textContent = data || "No data at the specified index.";

      readerInput.value = ""; // Clear the input field
    }
  </script>
</body>
</html>