Run include-what-you-use.
[cubemap] / udpinput.cpp
index fc0779c..887850c 100644 (file)
@@ -1,6 +1,7 @@
 #include <assert.h>
 #include <errno.h>
 #include <poll.h>
+#include <stddef.h>
 #include <stdio.h>
 #include <stdlib.h>
 #include <sys/socket.h>
@@ -8,18 +9,19 @@
 #include <string>
 
 #include "acceptor.h"
+#include "log.h"
 #include "serverpool.h"
 #include "state.pb.h"
 #include "udpinput.h"
+#include "util.h"
 #include "version.h"
 
 using namespace std;
 
 extern ServerPool *servers;
 
-UDPInput::UDPInput(const string &stream_id, const string &url)
-       : stream_id(stream_id),
-         url(url),
+UDPInput::UDPInput(const string &url)
+       : url(url),
          sock(-1)
 {
        // Should be verified by the caller.
@@ -31,8 +33,7 @@ UDPInput::UDPInput(const string &stream_id, const string &url)
 }
 
 UDPInput::UDPInput(const InputProto &serialized)
-       : stream_id(serialized.stream_id()),
-         url(serialized.url()),
+       : url(serialized.url()),
          sock(serialized.sock())
 {
        // Should be verified by the caller.
@@ -46,7 +47,6 @@ UDPInput::UDPInput(const InputProto &serialized)
 InputProto UDPInput::serialize() const
 {
        InputProto serialized;
-       serialized.set_stream_id(stream_id);
        serialized.set_url(url);
        serialized.set_sock(sock);
        return serialized;
@@ -54,57 +54,46 @@ InputProto UDPInput::serialize() const
 
 void UDPInput::close_socket()
 {
-       int ret;
-       do {
-               ret = close(sock);
-       } while (ret == -1 && errno == EINTR);
-
-       if (ret == -1) {
-               perror("close()");
-       }
-
+       safe_close(sock);
        sock = -1;
 }
        
 void UDPInput::construct_header()
 {
-       string header =
+       http_header =
                "HTTP/1.0 200 OK\r\n"
                "Content-type: application/octet-stream\r\n"
                "Cache-control: no-cache\r\n"
                "Server: " SERVER_IDENTIFICATION "\r\n"
-               "\r\n";
-       servers->set_header(stream_id, header);
+               "Connection: close\r\n";
+}
+       
+void UDPInput::add_destination(int stream_index)
+{
+       stream_indices.push_back(stream_index);
+       servers->set_header(stream_index, http_header, "");
 }
 
 void UDPInput::do_work()
 {
-       while (!should_stop) {
+       while (!should_stop()) {
                if (sock == -1) {
                        int port_num = atoi(port.c_str());
                        sock = create_server_socket(port_num, UDP_SOCKET);
                        if (sock == -1) {
-                               fprintf(stderr, "WARNING: UDP socket creation failed. Waiting 0.2 seconds and trying again...\n");
+                               log(WARNING, "[%s] UDP socket creation failed. Waiting 0.2 seconds and trying again...",
+                                            url.c_str());
                                usleep(200000);
                                continue;
                        }
                }
 
-               // Since we are non-blocking, we need to wait for the right state first.
-               // Wait up to 50 ms, then check should_stop.
-               pollfd pfd;
-               pfd.fd = sock;
-               pfd.events = POLLIN;
-
-               int nfds = poll(&pfd, 1, 50);
-               if (nfds == 0 || (nfds == -1 && errno == EINTR)) {
+               // Wait for a packet, or a wakeup.
+               bool activity = wait_for_activity(sock, POLLIN, NULL);
+               if (!activity) {
+                       // Most likely, should_stop was set.
                        continue;
                }
-               if (nfds == -1) {
-                       perror("poll");
-                       close_socket();
-                       continue;       
-               }
 
                char buf[4096];
                int ret;
@@ -113,11 +102,13 @@ void UDPInput::do_work()
                } while (ret == -1 && errno == EINTR);
 
                if (ret <= 0) {
-                       perror("recv");
+                       log_perror("recv");
                        close_socket();
                        continue;
                }
                
-               servers->add_data(stream_id, buf, ret);
+               for (size_t i = 0; i < stream_indices.size(); ++i) {
+                       servers->add_data(stream_indices[i], buf, ret);
+               }
        }
 }