Add a Makefile.

[cubemap] / cubemap.cpp

diff --git a/cubemap.cpp b/cubemap.cpp
index 2bccac39f12a38e546ddc1189bd207dd425d85ab..9f5e42e6a23b0f5cff0c37b3fecaded17b13b522 100644 (file)
--- a/cubemap.cpp
+++ b/cubemap.cpp
@@ -5,6 +5,9 @@
 #include <arpa/inet.h>
 #include <curl/curl.h>
 #include <sys/socket.h>
+#include <pthread.h>
+#include <sys/types.h>
+#include <errno.h>
 #include <vector>
 #include <string>
 #include <map>
@@ -14,9 +17,31 @@
 #define STREAM_ID "stream"
 #define STREAM_URL "http://gruessi.zrh.sesse.net:4013/"
 #define BACKLOG_SIZE 1048576
+#define PORT 9094
 
 using namespace std;
 
+// Locks a pthread mutex, RAII-style.
+class MutexLock {
+public:
+       MutexLock(pthread_mutex_t *mutex);
+       ~MutexLock();
+
+private:
+       pthread_mutex_t *mutex;
+};
+       
+MutexLock::MutexLock(pthread_mutex_t *mutex)
+       : mutex(mutex)
+{
+       pthread_mutex_lock(mutex);
+}
+
+MutexLock::~MutexLock()
+{
+       pthread_mutex_unlock(mutex);
+}
+
 struct Client {
        enum State { READING_REQUEST, SENDING_HEADER, SENDING_DATA };
        State state;
@@ -52,15 +77,52 @@ struct Stream {
 
 class Server {
 public:
+       Server();
+
+       // Start a new thread that handles clients.
+       void run();
        void add_socket(int server_sock);
        void add_stream(const string &stream_id);
        void set_header(const string &stream_id, const string &header);
        void add_data(const string &stream_id, const char *data, size_t bytes);
 
 private:
+       pthread_mutex_t mutex;
        map<string, Stream> streams;
+
+       // Recover the this pointer, and call do_work().
+       static void *do_work_thunk(void *arg);
+
+       // The actual worker thread.
+       void do_work();
 };
 
+Server::Server()
+{
+       pthread_mutex_init(&mutex, NULL);
+}
+
+void Server::run()
+{
+       pthread_t thread;
+       pthread_create(&thread, NULL, Server::do_work_thunk, this);
+}
+
+void *Server::do_work_thunk(void *arg)
+{
+       Server *server = static_cast<Server *>(arg);
+       server->do_work();
+       return NULL;
+}
+
+void Server::do_work()
+{
+       for ( ;; ) {
+               printf("server thread running\n");
+               sleep(1);
+       }
+}
+
 class Input {
 public:
        Input();
@@ -143,7 +205,7 @@ void Input::process_block(const char *data, uint32_t size, uint32_t flags)
        // TODO: treat it right here
        printf("Block: %d bytes, flags=0x%x\n", size, flags);
 }
-                       
+
 void Input::drop_pending_data(size_t num_bytes)
 {
        if (num_bytes == 0) {
@@ -162,12 +224,76 @@ size_t curl_callback(char *ptr, size_t size, size_t nmemb, void *userdata)
        return bytes;
 }
 
+int create_server_socket(int port)
+{
+       int server_sock = socket(PF_INET6, SOCK_STREAM, IPPROTO_TCP);
+       if (server_sock == -1) {
+               perror("socket");
+               exit(1);
+       }
+
+       // We want dual-stack sockets. (Sorry, OpenBSD and Windows XP...)
+       int zero = 0;
+       if (setsockopt(server_sock, IPPROTO_IPV6, IPV6_V6ONLY, &zero, sizeof(zero)) == -1) {
+               perror("setsockopt(IPV6_V6ONLY)");
+               exit(1);
+       }
+
+       sockaddr_in6 addr;
+       memset(&addr, 0, sizeof(addr));
+       addr.sin6_family = AF_INET6;
+       addr.sin6_port = htons(port);
+
+       if (bind(server_sock, reinterpret_cast<sockaddr *>(&addr), sizeof(addr)) == -1) {
+               perror("bind");
+               exit(1);
+       }
+
+       if (listen(server_sock, 128) == -1) {
+               perror("listen");
+               exit(1);
+       }
+
+       return server_sock;
+}
+
+void *acceptor_thread_run(void *arg)
+{
+       int server_sock = int(intptr_t(arg));
+       for ( ;; ) {
+               sockaddr_in6 addr;
+               socklen_t addrlen = sizeof(addr);
+
+               int sock = accept(server_sock, reinterpret_cast<sockaddr *>(&addr), &addrlen);
+               if (sock == -1 && errno == EINTR) {
+                       continue;
+               }
+               if (sock == -1) {
+                       perror("accept");
+                       exit(1);
+               }
+
+               printf("got a socket yaaaay\n");
+       }
+}
+
+Server *servers = NULL;
+
 int main(int argc, char **argv)
 {
+       servers = new Server[NUM_SERVERS];
+       for (int i = 0; i < NUM_SERVERS; ++i) {
+               servers[i].run();
+       }
+
+       int server_sock = create_server_socket(PORT);
+
+       pthread_t acceptor_thread;
+       pthread_create(&acceptor_thread, NULL, acceptor_thread_run, reinterpret_cast<void *>(server_sock));
+
        Input input;
        CURL *curl = curl_easy_init();
-       curl_easy_setopt(curl, CURLOPT_URL, "http://gruessi.zrh.sesse.net:4013/");
-       // curl_easy_setopt(curl, CURLOPT_URL, "http://www.google.com/");
+       curl_easy_setopt(curl, CURLOPT_URL, STREAM_URL);
        curl_easy_setopt(curl, CURLOPT_WRITEFUNCTION, curl_callback);
        curl_easy_setopt(curl, CURLOPT_WRITEDATA, &input);
        curl_easy_perform(curl);