This patch gives direct access to cbuffers memory. Its essential to
make glib's io read/write functions operate directly in the buffer
instead using intermediate buffering or reading by one char.
---
src/shared/cbuffer.c | 17 +++++++++++++++++
src/shared/cbuffer.h | 3 +++
2 files changed, 20 insertions(+)
diff --git a/src/shared/cbuffer.c b/src/shared/cbuffer.c
index 7dde707..7fd95cc 100644
--- a/src/shared/cbuffer.c
+++ b/src/shared/cbuffer.c
@@ -122,3 +122,20 @@ unsigned int cbuffer_get_size(struct circular_buffer *cbuff)
{
return cbuff->size;
}
+
+/* manual mode gives direct access to buffers memory space */
+char *cbuffer_get_free_cell(struct circular_buffer *cbuff)
+{
+ if (cbuffer_is_full(cbuff))
+ return NULL;
+ return &(cbuff->data[cbuff->end & (cbuff->size - 1)]);
+}
+
+int cbuffer_consume_next_cell(struct circular_buffer *cbuff)
+{
+ if (!cbuffer_is_full(cbuff)) {
+ cbuffer_incr(cbuff, &cbuff->end);
+ return 0;
+ }
+ return -ENOSPC;
+}
diff --git a/src/shared/cbuffer.h b/src/shared/cbuffer.h
index 8865f1f..4aaacfa 100644
--- a/src/shared/cbuffer.h
+++ b/src/shared/cbuffer.h
@@ -31,3 +31,6 @@ void cbuffer_drain(struct circular_buffer *cbuff);
int cbuffer_is_full(struct circular_buffer *cbuff);
int cbuffer_is_empty(struct circular_buffer *cbuff);
unsigned int cbuffer_get_size(struct circular_buffer *cbuff);
+/* memory direct access functions */
+char *cbuffer_get_free_cell(struct circular_buffer *cbuff);
+int cbuffer_consume_next_cell(struct circular_buffer *cbuff);
--
1.7.9.5
--
To unsubscribe from this list: send the line "unsubscribe linux-bluetooth" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at http://vger.kernel.org/majordomo-info.html
