From fc740649843584f23cf47f09c673e0e1e425de64 Mon Sep 17 00:00:00 2001
From: hyung-hwan <hyunghwan.chung@gmail.com>
Date: Sun, 19 Jul 2020 16:19:18 +0000
Subject: [PATCH] fixed a bug in handling sendfile in mio.c

---
 mio/lib/http-fil.c |  2 +-
 mio/lib/mio.c      | 12 +++++++++---
 2 files changed, 10 insertions(+), 4 deletions(-)

diff --git a/mio/lib/http-fil.c b/mio/lib/http-fil.c
index a1c4f73..352d46f 100644
--- a/mio/lib/http-fil.c
+++ b/mio/lib/http-fil.c
@@ -490,7 +490,7 @@ static int file_state_send_contents_to_client (file_state_t* file_state)
 
 	if (1 /*mio_dev_sck_sendfileok(file_state->client->sck)*/)
 	{
-		if (lim > 0xFFFF) lim = 0xFFFF; /* TODO: change this... */
+		if (lim > 0x7FFF0000) lim = 0x7FFF0000; /* TODO: change this... */
 		if (file_state_sendfile_to_client(file_state, file_state->cur_offset, lim) <= -1) return -1;
 		file_state->cur_offset += lim;
 	}
diff --git a/mio/lib/mio.c b/mio/lib/mio.c
index f1e3f77..26cf1b9 100644
--- a/mio/lib/mio.c
+++ b/mio/lib/mio.c
@@ -468,13 +468,20 @@ static MIO_INLINE void handle_event (mio_t* mio, mio_dev_t* dev, int events, int
 			else if (x == 0)
 			{
 				/* keep the left-over */
-				MIO_MEMMOVE (q->ptr, uptr, urem);
+				if (!q->sendfile) MIO_MEMMOVE (q->ptr, uptr, urem);
 				q->len = urem;
 				break;
 			}
 			else
 			{
-				uptr += ulen;
+				if (q->sendfile)
+				{
+					((wq_sendfile_data_t*)(q->ptr))->foff += ulen;
+				}
+				else
+				{
+					uptr += ulen;
+				}
 				urem -= ulen;
 
 				if (urem <= 0)
@@ -1720,7 +1727,6 @@ static int __dev_sendfile (mio_dev_t* dev, mio_syshnd_t in_fd, mio_foff_t foff,
 	return 1; /* written immediately and called on_write callback. but this line will never be reached */
 
 enqueue_data:
-printf ("queueing sendfiel...\n");
 	return __enqueue_pending_sendfile(dev, len, urem, uoff, in_fd, tmout, wrctx, MIO_NULL);
 
 enqueue_completed_write: