fifo_buffer: add functions _capacity() and _available()

2 files changed, 29 insertions, 0 deletions

diff --git a/src/fifo_buffer.c b/src/fifo_buffer.c
index 9ac7270bb..65cb2ffdc 100644
--- a/src/fifo_buffer.c
+++ b/src/fifo_buffer.c
@@ -66,6 +66,22 @@ fifo_buffer_free(struct fifo_buffer *buffer)
 	g_free(buffer);
 }
 
+size_t
+fifo_buffer_capacity(const struct fifo_buffer *buffer)
+{
+	assert(buffer != NULL);
+
+	return buffer->size;
+}
+
+size_t
+fifo_buffer_available(const struct fifo_buffer *buffer)
+{
+	assert(buffer != NULL);
+
+	return buffer->end - buffer->start;
+}
+
 void
 fifo_buffer_clear(struct fifo_buffer *buffer)
 {
diff --git a/src/fifo_buffer.h b/src/fifo_buffer.h
index 661dfd57e..114feec4c 100644
--- a/src/fifo_buffer.h
+++ b/src/fifo_buffer.h
@@ -63,6 +63,19 @@ void
 fifo_buffer_free(struct fifo_buffer *buffer);
 
 /**
+ * Return the capacity of the buffer, i.e. the size that was passed to
+ * fifo_buffer_new().
+ */
+size_t
+fifo_buffer_capacity(const struct fifo_buffer *buffer);
+
+/**
+ * Return the number of bytes currently stored in the buffer.
+ */
+size_t
+fifo_buffer_available(const struct fifo_buffer *buffer);
+
+/**
  * Clears all data currently in this #fifo_buffer object.  This does
  * not overwrite the actuall buffer; it just resets the internal
  * pointers.