#include <assert.h>
#include <errno.h>
#include <poll.h>
-#include <stdio.h>
+#include <stddef.h>
#include <stdlib.h>
#include <sys/socket.h>
+#include <time.h>
#include <unistd.h>
#include <string>
#include "acceptor.h"
#include "log.h"
+#include "mutexlock.h"
#include "serverpool.h"
#include "state.pb.h"
+#include "stream.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.
assert(ok);
construct_header();
+
+ pthread_mutex_init(&stats_mutex, NULL);
+ stats.url = url;
+ stats.bytes_received = 0;
+ stats.data_bytes_received = 0;
+ stats.connect_time = time(NULL);
}
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.
assert(ok);
construct_header();
+
+ pthread_mutex_init(&stats_mutex, NULL);
+ stats.url = url;
+ stats.bytes_received = serialized.bytes_received();
+ stats.data_bytes_received = serialized.data_bytes_received();
+ if (serialized.has_connect_time()) {
+ stats.connect_time = serialized.connect_time();
+ } else {
+ stats.connect_time = time(NULL);
+ }
}
InputProto UDPInput::serialize() const
{
InputProto serialized;
- serialized.set_stream_id(stream_id);
serialized.set_url(url);
serialized.set_sock(sock);
+ serialized.set_bytes_received(stats.bytes_received);
+ serialized.set_data_bytes_received(stats.data_bytes_received);
+ serialized.set_connect_time(stats.connect_time);
return serialized;
}
void UDPInput::close_socket()
{
- int ret;
- do {
- ret = close(sock);
- } while (ret == -1 && errno == EINTR);
-
- if (ret == -1) {
- log_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) {
- log(WARNING, "UDP socket creation failed. Waiting 0.2 seconds and trying again...");
+ 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) {
- log_perror("poll");
- close_socket();
- continue;
- }
- char buf[4096];
int ret;
do {
- ret = recv(sock, buf, sizeof(buf), 0);
+ ret = recv(sock, packet_buf, sizeof(packet_buf), 0);
} while (ret == -1 && errno == EINTR);
if (ret <= 0) {
close_socket();
continue;
}
+
+ {
+ MutexLock lock(&stats_mutex);
+ stats.bytes_received += ret;
+ stats.data_bytes_received += ret;
+ }
- servers->add_data(stream_id, buf, ret);
+ for (size_t i = 0; i < stream_indices.size(); ++i) {
+ servers->add_data(stream_indices[i], packet_buf, ret, SUITABLE_FOR_STREAM_START);
+ }
}
}
+
+InputStats UDPInput::get_stats() const
+{
+ MutexLock lock(&stats_mutex);
+ return stats;
+}