From: Jaroslav Kysela <perex@perex.cz>
Date: Sun, 15 Nov 1998 15:19:45 +0000 (+0000)
Subject: Added loopback_block_mode...
X-Git-Tag: v1.0.3~1559
X-Git-Url: https://git.alsa-project.org/?a=commitdiff_plain;h=b4a8875caeebbbbe5989c486a16681dc6e6beb5c;p=alsa-lib.git

Added loopback_block_mode...
---

diff --git a/include/pcm.h b/include/pcm.h
index e5b0fed2..23aef000 100644
--- a/include/pcm.h
+++ b/include/pcm.h
@@ -57,6 +57,7 @@ extern "C" {
 int snd_pcm_loopback_open( void **handle, int card, int device, int mode );
 int snd_pcm_loopback_close( void *handle );
 int snd_pcm_loopback_file_descriptor( void *handle );
+int snd_pcm_loopback_block_mode( void *handle, int enable );
 int snd_pcm_loopback_stream_mode( void *handle, int mode );
 int snd_pcm_loopback_format( void *handle, snd_pcm_format_t *format );
 ssize_t snd_pcm_loopback_read( void *handle, void *buffer, size_t size );
diff --git a/src/pcm/pcm_loopback.c b/src/pcm/pcm_loopback.c
index ca9a1272..d46b8274 100644
--- a/src/pcm/pcm_loopback.c
+++ b/src/pcm/pcm_loopback.c
@@ -89,6 +89,24 @@ int snd_pcm_loopback_file_descriptor( void *handle )
   return lb -> fd;
 }
 
+int snd_pcm_loopback_block_mode( void *handle, int enable )
+{
+  snd_pcm_loopback_t *lb;
+  long flags;
+  
+  lb = (snd_pcm_loopback_t *)handle;
+  if ( !lb ) return -EINVAL;
+  if ( fcntl( lb -> fd, F_GETFL, &flags ) < 0 )
+    return -errno;
+  if ( enable )
+    flags |= O_NONBLOCK;
+   else
+    flags &= ~O_NONBLOCK;
+  if ( fcntl( lb -> fd, F_SETFL, &flags ) < 0 )
+    return -errno;
+  return 0;
+}
+
 int snd_pcm_loopback_stream_mode( void *handle, int mode )
 {
   snd_pcm_loopback_t *lb;