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[Qemu-devel] [PATCH 02/19] buffer: add buffer_init
From: |
Gerd Hoffmann |
Subject: |
[Qemu-devel] [PATCH 02/19] buffer: add buffer_init |
Date: |
Fri, 30 Oct 2015 12:09:57 +0100 |
Signed-off-by: Gerd Hoffmann <address@hidden>
Reviewed-by: Peter Lieven <address@hidden>
---
include/qemu/buffer.h | 12 ++++++++++++
util/buffer.c | 11 +++++++++++
2 files changed, 23 insertions(+)
diff --git a/include/qemu/buffer.h b/include/qemu/buffer.h
index b380cec..0710e16 100644
--- a/include/qemu/buffer.h
+++ b/include/qemu/buffer.h
@@ -34,12 +34,24 @@ typedef struct Buffer Buffer;
*/
struct Buffer {
+ char *name;
size_t capacity;
size_t offset;
uint8_t *buffer;
};
/**
+ * buffer_init:
+ * @buffer: the buffer object
+ * @name: buffer name
+ *
+ * Optionally attach a name to the buffer, to make it easier
+ * to identify in debug traces.
+ */
+void buffer_init(Buffer *buffer, const char *name, ...)
+ GCC_FMT_ATTR(2, 3);
+
+/**
* buffer_reserve:
* @buffer: the buffer object
* @len: the minimum required free space
diff --git a/util/buffer.c b/util/buffer.c
index 7ddd693..12bf2d7 100644
--- a/util/buffer.c
+++ b/util/buffer.c
@@ -22,6 +22,15 @@
#define BUFFER_MIN_INIT_SIZE 4096
+void buffer_init(Buffer *buffer, const char *name, ...)
+{
+ va_list ap;
+
+ va_start(ap, name);
+ buffer->name = g_strdup_vprintf(name, ap);
+ va_end(ap);
+}
+
void buffer_reserve(Buffer *buffer, size_t len)
{
if ((buffer->capacity - buffer->offset) < len) {
@@ -49,9 +58,11 @@ void buffer_reset(Buffer *buffer)
void buffer_free(Buffer *buffer)
{
g_free(buffer->buffer);
+ g_free(buffer->name);
buffer->offset = 0;
buffer->capacity = 0;
buffer->buffer = NULL;
+ buffer->name = NULL;
}
void buffer_append(Buffer *buffer, const void *data, size_t len)
--
1.8.3.1
- [Qemu-devel] [PATCH 19/19] buffer: allow a buffer to shrink gracefully, (continued)
- [Qemu-devel] [PATCH 19/19] buffer: allow a buffer to shrink gracefully, Gerd Hoffmann, 2015/10/30
- [Qemu-devel] [PATCH 13/19] vnc: use vnc_{width, height} in vnc_set_area_dirty, Gerd Hoffmann, 2015/10/30
- [Qemu-devel] [PATCH 18/19] buffer: factor out buffer_adj_size, Gerd Hoffmann, 2015/10/30
- [Qemu-devel] [PATCH 17/19] buffer: factor out buffer_req_size, Gerd Hoffmann, 2015/10/30
- [Qemu-devel] [PATCH 07/19] vnc: attach names to buffers, Gerd Hoffmann, 2015/10/30
- [Qemu-devel] [PATCH 02/19] buffer: add buffer_init,
Gerd Hoffmann <=
- [Qemu-devel] [PATCH 14/19] vnc: only alloc server surface with clients connected, Gerd Hoffmann, 2015/10/30
- [Qemu-devel] [PATCH 16/19] vnc: recycle empty vs->output buffer, Gerd Hoffmann, 2015/10/30
- [Qemu-devel] [PATCH 12/19] vnc: factor out vnc_update_server_surface, Gerd Hoffmann, 2015/10/30
- [Qemu-devel] [PATCH 01/19] buffer: make the Buffer capacity increase in powers of two, Gerd Hoffmann, 2015/10/30
- [Qemu-devel] [PATCH 11/19] vnc: add vnc_width+vnc_height helpers, Gerd Hoffmann, 2015/10/30