From 689646962ea4bfd83b37a898f5669be071d3e17d Mon Sep 17 00:00:00 2001
From: Stefano Pigozzi <stefano.pigozzi@gmail.com>
Date: Mon, 17 Feb 2014 12:51:38 +0100
Subject: [PATCH] stream_file: activate cache with files on network file
 systems

Detected 'protocols' are AFP, nfs, smb and webdav. This can be extended on
request.

This is currently only implemented for BSD systems (using fstatfs). This
addresses issue #558 on the above platforms.
---
 stream/stream_file.c | 28 ++++++++++++++++++++++++++++
 wscript              |  5 +++++
 2 files changed, 33 insertions(+)

diff --git a/stream/stream_file.c b/stream/stream_file.c
index 3591227f75..570546db19 100644
--- a/stream/stream_file.c
+++ b/stream/stream_file.c
@@ -34,6 +34,11 @@
 #include "options/m_option.h"
 #include "options/path.h"
 
+#if HAVE_BSD_FSTATFS
+#include <sys/param.h>
+#include <sys/mount.h>
+#endif
+
 struct priv {
     int fd;
     bool close;
@@ -108,6 +113,26 @@ char *mp_file_url_to_filename(void *talloc_ctx, bstr url)
     return filename;
 }
 
+#if HAVE_BSD_FSTATFS
+static bool check_stream_network(stream_t *stream)
+{
+    struct statfs fs;
+    const char *stypes[] = { "afpfs", "nfs", "smbfs", "webdav", NULL };
+    struct priv *priv = stream->priv;
+    if (fstatfs(priv->fd, &fs) == 0)
+        for (int i=0; stypes[i]; i++)
+            if (strcmp(stypes[i], fs.f_fstypename) == 0)
+                return true;
+    return false;
+
+}
+#else
+static bool check_stream_network(stream_t *stream)
+{
+    return false;
+}
+#endif
+
 static int open_f(stream_t *stream, int mode)
 {
     int fd;
@@ -195,6 +220,9 @@ static int open_f(stream_t *stream, int mode)
     stream->read_chunk = 64 * 1024;
     stream->close = s_close;
 
+    if (check_stream_network(stream))
+        stream->streaming = true;
+
     return STREAM_OK;
 }
 
diff --git a/wscript b/wscript
index de70718555..2292a44747 100644
--- a/wscript
+++ b/wscript
@@ -196,6 +196,11 @@ iconv support use --disable-iconv.",
         'name': 'setmode',
         'desc': 'setmode()',
         'func': check_statement('io.h', 'setmode(0, 0)')
+    }, {
+        'name': 'bsd-fstatfs',
+        'desc': "BSD's fstatfs()",
+        'func': check_statement(['sys/param.h', 'sys/mount.h'],
+                                'struct statfs fs; fstatfs(0, &fs)')
     }, {
         'name': 'sys-sysinfo-h',
         'desc': 'sys/sysinfo.h',