From c5a60bb4a07772785ab47bc72907353a2ed99b58 Mon Sep 17 00:00:00 2001
From: Igor Sysoev <igor@sysoev.ru>
Date: Mon, 7 May 2007 07:04:00 +0000
Subject: [PATCH] add debug log

---
 src/os/unix/ngx_linux_sendfile_chain.c | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/src/os/unix/ngx_linux_sendfile_chain.c b/src/os/unix/ngx_linux_sendfile_chain.c
index eb15c7a5f..ab2a3cf1b 100644
--- a/src/os/unix/ngx_linux_sendfile_chain.c
+++ b/src/os/unix/ngx_linux_sendfile_chain.c
@@ -254,6 +254,10 @@ ngx_linux_sendfile_chain(ngx_connection_t *c, ngx_chain_t *in, off_t limit)
 #else
             offset = (int32_t) file->file_pos;
 #endif
+
+            ngx_log_debug2(NGX_LOG_DEBUG_EVENT, c->log, 0,
+                           "sendfile: @%O %uz", file->file_pos, file_size);
+
             rc = sendfile(c->fd, file->file->fd, &offset, file_size);
 
             if (rc == -1) {