add cubeb_get_backend_id. fixes #5.

7 files changed, 41 insertions, 0 deletions

diff --git a/include/cubeb/cubeb.h b/include/cubeb/cubeb.h
index fc9c102..1939bde 100644
--- a/include/cubeb/cubeb.h
+++ b/include/cubeb/cubeb.h
@@ -156,6 +156,11 @@ typedef int (* cubeb_state_callback)(cubeb_stream * stream,
     @retval CUBEB_ERROR */
 int cubeb_init(cubeb ** context, char const * context_name);
 
+/** Get a read-only string identifying this context's current backend.
+    @param context
+    @retval Read-only string identifying current backend. */
+char const * cubeb_get_backend_id(cubeb * context);
+
 /** Destroy an application context.
     @param context */
 void cubeb_destroy(cubeb * context);
diff --git a/src/cubeb_alsa.c b/src/cubeb_alsa.c
index 5305a4b..25f23dc 100644
--- a/src/cubeb_alsa.c
+++ b/src/cubeb_alsa.c
@@ -531,6 +531,12 @@ cubeb_init(cubeb ** context, char const * context_name UNUSED)
   return CUBEB_OK;
 }
 
+char const *
+cubeb_get_backend_id(cubeb * ctx UNUSED)
+{
+  return "alsa";
+}
+
 void
 cubeb_destroy(cubeb * ctx)
 {
diff --git a/src/cubeb_audioqueue.c b/src/cubeb_audioqueue.c
index 9eac87a..e57cff0 100644
--- a/src/cubeb_audioqueue.c
+++ b/src/cubeb_audioqueue.c
@@ -79,6 +79,12 @@ cubeb_init(cubeb ** context, char const * context_name)
   return CUBEB_OK;
 }
 
+char const *
+cubeb_get_backend_id(cubeb * ctx)
+{
+  return "audioqueue";
+}
+
 void
 cubeb_destroy(cubeb * ctx)
 {
diff --git a/src/cubeb_audiounit.c b/src/cubeb_audiounit.c
index dde1942..fff0130 100644
--- a/src/cubeb_audiounit.c
+++ b/src/cubeb_audiounit.c
@@ -87,6 +87,12 @@ cubeb_init(cubeb ** context, char const * context_name)
   return CUBEB_OK;
 }
 
+char const *
+cubeb_get_backend_id(cubeb * ctx)
+{
+  return "audiounit";
+}
+
 void
 cubeb_destroy(cubeb * ctx)
 {
diff --git a/src/cubeb_directsound.cpp b/src/cubeb_directsound.cpp
index c3ee6fd..c1f49d5 100644
--- a/src/cubeb_directsound.cpp
+++ b/src/cubeb_directsound.cpp
@@ -309,6 +309,12 @@ cubeb_init(cubeb ** context, char const * context_name)
   return CUBEB_OK;
 }
 
+char const *
+cubeb_get_backend_id(cubeb * ctx)
+{
+  return "directsound";
+}
+
 void
 cubeb_destroy(cubeb * ctx)
 {
diff --git a/src/cubeb_pulse.c b/src/cubeb_pulse.c
index ad4c340..9de43be 100644
--- a/src/cubeb_pulse.c
+++ b/src/cubeb_pulse.c
@@ -211,6 +211,12 @@ cubeb_init(cubeb ** context, char const * context_name)
   return CUBEB_OK;
 }
 
+char const *
+cubeb_get_backend_id(cubeb * ctx)
+{
+  return "pulse";
+}
+
 void
 cubeb_destroy(cubeb * ctx)
 {
diff --git a/src/cubeb_winmm.c b/src/cubeb_winmm.c
index ead4cdb..01e0fb0 100644
--- a/src/cubeb_winmm.c
+++ b/src/cubeb_winmm.c
@@ -227,6 +227,12 @@ cubeb_init(cubeb ** context, char const * context_name)
   return CUBEB_OK;
 }
 
+char const *
+cubeb_get_backend_id(cubeb * ctx)
+{
+  return "winmm";
+}
+
 void
 cubeb_destroy(cubeb * ctx)
 {