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-rw-r--r--src/input/rewind_input_plugin.c10
-rw-r--r--src/input_plugin.h6
-rw-r--r--src/input_stream.c10
-rw-r--r--src/input_stream.h7
4 files changed, 33 insertions, 0 deletions
diff --git a/src/input/rewind_input_plugin.c b/src/input/rewind_input_plugin.c
index f4c4fa606..9d3255cfe 100644
--- a/src/input/rewind_input_plugin.c
+++ b/src/input/rewind_input_plugin.c
@@ -105,6 +105,15 @@ input_rewind_close(struct input_stream *is)
g_free(r);
}
+static void
+input_rewind_update(struct input_stream *is)
+{
+ struct input_rewind *r = (struct input_rewind *)is;
+
+ if (!reading_from_buffer(r))
+ copy_attributes(r);
+}
+
static struct tag *
input_rewind_tag(struct input_stream *is)
{
@@ -210,6 +219,7 @@ input_rewind_seek(struct input_stream *is, goffset offset, int whence,
static const struct input_plugin rewind_input_plugin = {
.close = input_rewind_close,
+ .update = input_rewind_update,
.tag = input_rewind_tag,
.buffer = input_rewind_buffer,
.read = input_rewind_read,
diff --git a/src/input_plugin.h b/src/input_plugin.h
index 70b9155aa..3ac0bdf40 100644
--- a/src/input_plugin.h
+++ b/src/input_plugin.h
@@ -51,6 +51,12 @@ struct input_plugin {
struct input_stream *(*open)(const char *uri, GError **error_r);
void (*close)(struct input_stream *is);
+ /**
+ * Update the public attributes. Call before access. Can be
+ * NULL if the plugin always keeps its attributes up to date.
+ */
+ void (*update)(struct input_stream *is);
+
struct tag *(*tag)(struct input_stream *is);
int (*buffer)(struct input_stream *is, GError **error_r);
size_t (*read)(struct input_stream *is, void *ptr, size_t size,
diff --git a/src/input_stream.c b/src/input_stream.c
index d207188cd..effa24798 100644
--- a/src/input_stream.c
+++ b/src/input_stream.c
@@ -67,6 +67,16 @@ input_stream_open(const char *url, GError **error_r)
return false;
}
+void
+input_stream_update(struct input_stream *is)
+{
+ assert(is != NULL);
+ assert(is->plugin != NULL);
+
+ if (is->plugin->update != NULL)
+ is->plugin->update(is);
+}
+
bool
input_stream_seek(struct input_stream *is, goffset offset, int whence,
GError **error_r)
diff --git a/src/input_stream.h b/src/input_stream.h
index f9cb8dbf8..529ed8762 100644
--- a/src/input_stream.h
+++ b/src/input_stream.h
@@ -87,6 +87,13 @@ void
input_stream_close(struct input_stream *is);
/**
+ * Update the public attributes. Call before accessing attributes
+ * such as "ready" or "offset".
+ */
+void
+input_stream_update(struct input_stream *is);
+
+/**
* Seeks to the specified position in the stream. This will most
* likely fail if the "seekable" flag is false.
*