From 2f5350f30cbfeebde0bd287d16fb118639536493 Mon Sep 17 00:00:00 2001
From: "sgunderson@bigfoot.com" <>
Date: Tue, 13 Feb 2007 21:54:31 +0100
Subject: [PATCH] Stop malloc()-ing for each new connection.

---
 jam.c | 24 +++++++++++-------------
 1 file changed, 11 insertions(+), 13 deletions(-)

diff --git a/jam.c b/jam.c
index 581d51c..5faf037 100644
--- a/jam.c
+++ b/jam.c
@@ -148,21 +148,14 @@ struct sender {
 	unsigned long long bytes_left;
 };
 
-void generate_new_sender(int ep_fd)
+void generate_new_sender(int ep_fd, struct sender *s)
 {
 	int sock, one = 1;
 	unsigned src_num, dst_num;
 	unsigned long long num_bytes;
 	struct sockaddr_in sin;
 	struct epoll_event ev;
-	struct sender *s;
 	
-	s = (struct sender *)malloc(sizeof(struct sender));
-	if (s == NULL) {
-		perror("malloc()");
-		exit(1);
-	}
-
 	sock = socket(PF_INET, SOCK_STREAM, IPPROTO_TCP);
 	if (sock == -1) {
 		perror("socket()");
@@ -230,8 +223,15 @@ void *sender_worker(void *arg)
 		buf[i] = rand() & 0xff;
 
 	// allocate all the senders
-	for (i = 0; i < num_sockets_per_sender; ++i)
-		generate_new_sender(ep_fd);
+	for (i = 0; i < num_sockets_per_sender; ++i) {
+		struct sender *s = (struct sender *)malloc(sizeof(struct sender));
+		if (s == NULL) {
+			perror("malloc()");
+			exit(1);
+		}
+
+		generate_new_sender(ep_fd, s);
+	}
 
 	for ( ;; ) {
 		int num_active = epoll_wait(ep_fd, events, num_sockets_per_sender, -1);
@@ -277,9 +277,7 @@ void *sender_worker(void *arg)
 					exit(1);
 				}
 				close(s->fd);
-
-				free(s);
-				generate_new_sender(ep_fd);
+				generate_new_sender(ep_fd, s);
 			}
 		}
 	}
-- 
2.39.2