sppu-te-comp-content/ComputerNetworksAndSecurity
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Fixed minor stuff in code-a5

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This commit is contained in:
K 2024-09-25 22:53:51 +05:30
parent 1f26e9fde1
commit ea9f19e66c
Signed by: notkshitij
GPG Key ID: C5B8BC7530F8F43F
1 changed files with 36 additions and 37 deletions
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73
Codes/Code-A5 (Sliding Window).cpp
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@ -1,16 +1,15 @@
#include <iostream> #include <iostream>
#include <vector> #include <vector>
#include <queue> #include <queue>
using namespace std; using namespace std;
class SlidingWindow { class SlidingWindow {
private: private:
int window_size; int window_size;
int total_frames; int total_frames;
vector<int> sent_frames; // queue of sent frames vector<int> sent_frames; // queue of sent frames
int next_frame_to_send; // index of the next frame to send int next_frame_to_send; // index of the next frame to send
int next_frame_to_receive; // index of the next frame to receive int next_frame_to_receive; // index of the next frame to receive
public: public:
SlidingWindow(int window_size, int total_frames) { SlidingWindow(int window_size, int total_frames) {
@ -20,39 +19,40 @@ public:
this->next_frame_to_receive = 0; this->next_frame_to_receive = 0;
} }
// send a frame // send a frame
void send_frame() { void send_frame() {
if (sent_frames.size() < window_size && next_frame_to_send < total_frames) { if (sent_frames.size() < window_size && next_frame_to_send < total_frames) {
sent_frames.push_back(next_frame_to_send); sent_frames.push_back(next_frame_to_send);
next_frame_to_send++; next_frame_to_send++;
cout << "Sent frame " << sent_frames.back() << endl; cout<<"Sent frame "<<sent_frames.back()<<endl;
} else { }
cout << "Window is full. Waiting before sending next frames." << endl; else {
} cout<<"Window is full. Waiting before sending next frames."<<endl;
} }
}
// receive a frame // receive a frame
void receive_frame(int frame_number) { void receive_frame(int frame_number) {
if (frame_number == next_frame_to_receive) { if (frame_number == next_frame_to_receive) {
next_frame_to_receive++; next_frame_to_receive++;
cout << "Received frame " << frame_number << endl; cout<<"Received frame "<<frame_number<<endl;
} else {
cout << "Received frame " << frame_number << ", but expected frame " << next_frame_to_receive << endl;
}
// remove acknowledged frames from the sent_frames queue
while (!sent_frames.empty() && sent_frames.front() <= next_frame_to_receive - 1) {
sent_frames.erase(sent_frames.begin());
}
} }
else {
bool all_frames_sent() { cout<<"Received frame "<<frame_number<<", but expected frame "<<next_frame_to_receive<<endl;
return next_frame_to_send == total_frames;
} }
// remove acknowledged frames from the sent_frames queue
bool all_frames_received() { while (!sent_frames.empty() && sent_frames.front()<=next_frame_to_receive-1) {
return next_frame_to_receive == total_frames; sent_frames.erase(sent_frames.begin());
} }
}
bool all_frames_sent() {
return next_frame_to_send == total_frames;
}
bool all_frames_received() {
return next_frame_to_receive == total_frames;
}
}; };
int main() { int main() {
@ -66,14 +66,13 @@ int main() {
while (!window.all_frames_sent() || !window.all_frames_received()) { while (!window.all_frames_sent() || !window.all_frames_received()) {
window.send_frame(); window.send_frame();
// simulate receiving frames // simulate receiving frames
for (int i = 0; i < rand() % 3; i++) { for (int i=0; i<rand()%3; i++) {
int frame_number = rand() % total_frames; int frame_number = rand() % total_frames;
window.receive_frame(frame_number); window.receive_frame(frame_number);
} }
} }
cout << "All frames sent and received successfully!" << endl; cout<<"All frames sent and received successfully!"<<endl;
return 0; return 0;
} }