X-Git-Url: https://git.sesse.net/?p=cubemap;a=blobdiff_plain;f=server.cpp;h=d3fbaaff297867b5fe5e4323e04ffd8c4ce3ebb2;hp=5c55636668eca819141f44099461ae419c51d997;hb=7fc0624f07b0451f8a8c997e18c29da10076aa38;hpb=019b96a9cc6fa2902690e98a2aa033517efef3ed

diff --git a/server.cpp b/server.cpp
index 5c55636..d3fbaaf 100644
--- a/server.cpp
+++ b/server.cpp
@@ -9,12 +9,14 @@
 #include <sys/ioctl.h>
 #include <sys/epoll.h>
 #include <time.h>
+#include <signal.h>
 #include <errno.h>
 #include <vector>
 #include <string>
 #include <map>
 #include <algorithm>
 
+#include "markpool.h"
 #include "metacube.h"
 #include "server.h"
 #include "mutexlock.h"
@@ -25,6 +27,7 @@ using namespace std;
 
 Client::Client(int sock)
 	: sock(sock),
+	  fwmark(0),
 	  connect_time(time(NULL)),
 	  state(Client::READING_REQUEST),
 	  stream(NULL),
@@ -63,6 +66,16 @@ Client::Client(const ClientProto &serialized, Stream *stream)
 	  header_or_error_bytes_sent(serialized.header_or_error_bytes_sent()),
 	  bytes_sent(serialized.bytes_sent())
 {
+	if (stream->mark_pool != NULL) {
+		fwmark = stream->mark_pool->get_mark();
+	} else {
+		fwmark = 0;  // No mark.
+	}
+	if (setsockopt(sock, SOL_SOCKET, SO_MARK, &fwmark, sizeof(fwmark)) == -1) {
+		if (fwmark != 0) {
+			perror("setsockopt(SO_MARK)");
+		}
+	}
 }
 
 ClientProto Client::serialize() const
@@ -93,7 +106,8 @@ ClientStats Client::get_stats() const
 Stream::Stream(const string &stream_id)
 	: stream_id(stream_id),
 	  data(new char[BACKLOG_SIZE]),
-	  data_size(0)
+	  data_size(0),
+	  mark_pool(NULL)
 {
 	memset(data, 0, BACKLOG_SIZE);
 }
@@ -107,7 +121,8 @@ Stream::Stream(const StreamProto &serialized)
 	: stream_id(serialized.stream_id()),
 	  header(serialized.header()),
 	  data(new char[BACKLOG_SIZE]),
-	  data_size(serialized.data_size())
+	  data_size(serialized.data_size()),
+	  mark_pool(NULL)
 {
 	assert(serialized.data().size() == BACKLOG_SIZE);
 	memcpy(data, serialized.data().data(), BACKLOG_SIZE);
@@ -162,30 +177,6 @@ Server::~Server()
 	}
 }
 
-void Server::run()
-{
-	should_stop = false;
-	
-	// Joinable is already the default, but it's good to be certain.
-	pthread_attr_t attr;
-	pthread_attr_init(&attr);
-	pthread_attr_setdetachstate(&attr, PTHREAD_CREATE_JOINABLE);
-	pthread_create(&worker_thread, &attr, Server::do_work_thunk, this);
-}
-	
-void Server::stop()
-{
-	{
-		MutexLock lock(&mutex);
-		should_stop = true;
-	}
-
-	if (pthread_join(worker_thread, NULL) == -1) {
-		perror("pthread_join");
-		exit(1);
-	}
-}
-	
 vector<ClientStats> Server::get_client_stats() const
 {
 	vector<ClientStats> ret;
@@ -199,18 +190,14 @@ vector<ClientStats> Server::get_client_stats() const
 	return ret;
 }
 
-void *Server::do_work_thunk(void *arg)
-{
-	Server *server = static_cast<Server *>(arg);
-	server->do_work();
-	return NULL;
-}
-
 void Server::do_work()
 {
 	for ( ;; ) {
 		int nfds = epoll_wait(epoll_fd, events, EPOLL_MAX_EVENTS, EPOLL_TIMEOUT_MS);
 		if (nfds == -1 && errno == EINTR) {
+			if (should_stop) {
+				return;
+			}
 			continue;
 		}
 		if (nfds == -1) {
@@ -220,10 +207,6 @@ void Server::do_work()
 
 		MutexLock lock(&mutex);  // We release the mutex between iterations.
 	
-		if (should_stop) {
-			return;
-		}
-
 		process_queued_data();
 
 		for (int i = 0; i < nfds; ++i) {
@@ -248,6 +231,10 @@ void Server::do_work()
 				process_client(to_process[i]);
 			}
 		}
+
+		if (should_stop) {
+			return;
+		}
 	}
 }
 
@@ -353,6 +340,13 @@ void Server::set_header(const string &stream_id, const string &header)
 		}
 	}
 }
+	
+void Server::set_mark_pool(const std::string &stream_id, MarkPool *mark_pool)
+{
+	MutexLock lock(&mutex);
+	assert(clients.empty());
+	find_stream(stream_id)->mark_pool = mark_pool;
+}
 
 void Server::add_data_deferred(const string &stream_id, const char *data, size_t bytes)
 {
@@ -577,6 +571,16 @@ int Server::parse_request(Client *client)
 
 	client->stream_id = request_tokens[1];
 	client->stream = find_stream(client->stream_id);
+	if (client->stream->mark_pool != NULL) {
+		client->fwmark = client->stream->mark_pool->get_mark();
+	} else {
+		client->fwmark = 0;  // No mark.
+	}
+	if (setsockopt(client->sock, SOL_SOCKET, SO_MARK, &client->fwmark, sizeof(client->fwmark)) == -1) {                          
+		if (client->fwmark != 0) {
+			perror("setsockopt(SO_MARK)");
+		}
+	}
 	client->request.clear();
 
 	return 200;  // OK!
@@ -639,8 +643,12 @@ void Server::close_client(Client *client)
 	if (client->stream != NULL) {
 		delete_from(&client->stream->sleeping_clients, client);
 		delete_from(&client->stream->to_process, client);
+		if (client->stream->mark_pool != NULL) {
+			int fwmark = client->fwmark;
+			client->stream->mark_pool->release_mark(fwmark);
+		}
 	}
-	
+
 	// Bye-bye!
 	int ret;
 	do {