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HostController
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feat: Ability to remove ports from active port list

This commit is contained in:
Tristan Russell 2025-01-17 19:51:36 -05:00
parent b67b62a31a
commit 83a5dcaec7
1 changed files with 57 additions and 30 deletions
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63
main.c
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@ -3,12 +3,30 @@
#include <sys/socket.h>
#include <netinet/in.h>
#include <spawn.h>
#include <sys/types.h>
#include <unistd.h>
#include <string.h>
#include <errno.h>
bool ports[999];
int start_server(int* socket_fd) {
struct sockaddr_in server_addr;
server_addr.sin_family = AF_INET;
server_addr.sin_port = htons(1337);
server_addr.sin_addr.s_addr = INADDR_ANY;
printf("Starting Server\n");
*socket_fd = socket(AF_INET, SOCK_STREAM, 0);
int bound = bind(*socket_fd, (struct sockaddr*)&server_addr, sizeof(server_addr));
if(bound < 0) {
printf("Bind Error: %s (%d)\n", strerror(errno), errno);
return 1;
}
listen(*socket_fd, 5);
return 0;
}
void start_worker(int port) {
char portStr[6];
sprintf(portStr, "%d", port);
@ -19,32 +37,25 @@ void start_worker(int port) {
posix_spawn(&pid, "./worker", NULL, NULL, argv, environ);
}
int main() {
struct sockaddr_in server_addr;
server_addr.sin_family = AF_INET;
server_addr.sin_port = htons(1337);
server_addr.sin_addr.s_addr = INADDR_ANY;
printf("Starting Server\n");
int socket_fd;
socket_fd = socket(AF_INET, SOCK_STREAM, 0);
int bound = bind(socket_fd, (struct sockaddr*)&server_addr, sizeof(server_addr));
if(bound < 0) {
printf("Bind Error: %s (%d)\n", strerror(errno), errno);
return 1;
}
listen(socket_fd, 5);
int assign_workers(int* socket_fd) {
while(true) {
struct sockaddr_in client_addr;
int client_size = sizeof(client_addr);
int client_sock = accept(socket_fd, (struct sockaddr*)&client_addr, &client_size);
int client_sock = accept(*socket_fd, (struct sockaddr*)&client_addr, &client_size);
char buffer[5];
int bytes_received;
bytes_received = recv(client_sock, buffer, sizeof(buffer), 0);
if(bytes_received < 0 || bytes_received == 0) {
continue;
}
if(buffer[0] == 0x0) { // Get Port
for(int i = 0; i < sizeof(ports); i++) {
if(!ports[i]) {
int port = 11000+i;
printf("Assigning port %i to worker\n", port);
char buff[4];
char buff[sizeof(int)];
memcpy(buff, &port, sizeof(int));
write(client_sock, buff, sizeof(buff));
start_worker(port);
@ -54,6 +65,22 @@ int main() {
break;
}
}
} else if(buffer[0] == 0x1) { // Remove Worker
u_int32_t port;
memcpy(&port, buffer+1, sizeof(u_int32_t));
port = ntohl(port);
printf("Unassigning port %i\n", port);
ports[11000-port] = false;
shutdown(client_sock, SHUT_RDWR);
close(client_sock);
}
}
return 0;
}
int main() {
int* socket_fd;
start_server(socket_fd);
assign_workers(socket_fd);
return 0;
}