From afbb7df7e933db2f4be2dbeab6bc90ef326785d9 Mon Sep 17 00:00:00 2001
From: "Steinar H. Gunderson" <sgunderson@bigfoot.com>
Date: Sun, 7 Apr 2013 16:10:39 +0200
Subject: [PATCH] Fetch num_servers from the config file.

---
 cubemap.cpp | 19 +++++++++++++++----
 1 file changed, 15 insertions(+), 4 deletions(-)

diff --git a/cubemap.cpp b/cubemap.cpp
index 4f03fea..253ec37 100644
--- a/cubemap.cpp
+++ b/cubemap.cpp
@@ -22,7 +22,6 @@
 #include "input.h"
 #include "state.pb.h"
 
-#define NUM_SERVERS 4
 #define STREAM_ID "stream"
 #define STREAM_URL "http://gruessi.zrh.sesse.net:4013/"
 
@@ -264,7 +263,7 @@ int main(int argc, char **argv)
 	vector<ConfigLine> config = parse_config(config_filename);
 
 	// Go through each (parsed) configuration line.
-	int port = -1;
+	int port = -1, num_servers = -1;
 	for (unsigned i = 0; i < config.size(); ++i) {
 		if (config[i].keyword == "port") {
 			if (config[i].parameters.size() > 0 ||
@@ -274,13 +273,25 @@ int main(int argc, char **argv)
 			}
 			port = atoi(config[i].arguments[0].c_str());
 		}
+		if (config[i].keyword == "num_servers") {
+			if (config[i].parameters.size() > 0 ||
+			    config[i].arguments.size() != 1) {
+				fprintf(stderr, "ERROR: 'num_servers' takes one argument and no parameters\n");
+				exit(1);
+			}
+			num_servers = atoi(config[i].arguments[0].c_str());
+		}
 	}
 	if (port <= 0 || port > 65535) {
 		fprintf(stderr, "ERROR: Missing or invalid 'port' statement in config file\n");
 		exit(1);
 	}
+	if (num_servers <= 0 || num_servers > 20000) {  // 20000 is an insanely high max limit.
+		fprintf(stderr, "ERROR: Missing or invalid 'num_servers' statement in config file\n");
+		exit(1);
+	}
 
-	servers = new ServerPool(NUM_SERVERS);
+	servers = new ServerPool(num_servers);
 
 	int server_sock = -1, old_port = -1;
 	if (argc == 4 && strcmp(argv[2], "-state") == 0) {
@@ -339,7 +350,7 @@ int main(int argc, char **argv)
 	CubemapStateProto state;
 	state.set_server_sock(server_sock);
 	state.set_port(port);
-	for (int i = 0; i < NUM_SERVERS; ++i) {	
+	for (int i = 0; i < num_servers; ++i) {	
 		servers->get_server(i)->stop();
 
 		CubemapStateProto local_state = servers->get_server(i)->serialize();
-- 
2.39.2