Commit 810082d1 authored by Gerd Hoffmann's avatar Gerd Hoffmann
Browse files

buffer: add buffer_init 



Signed-off-by: default avatarGerd Hoffmann <kraxel@redhat.com>
Reviewed-by: default avatarPeter Lieven <pl@kamp.de>
Reviewed-by: default avatarDaniel P. Berrange <berrange@redhat.com>
Message-id: 1446203414-4013-3-git-send-email-kraxel@redhat.com
parent 5c10dbb7

include/qemu/buffer.h

+12 −0
Original line number Diff line number Diff line
@@ -34,11 +34,23 @@ 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

util/buffer.c

+11 −0
Original line number Diff line number Diff line
@@ -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)