Commit 4bf0bb80 authored by Luiz Capitulino's avatar Luiz Capitulino
Browse files

chardev: drop the Memory chardev driver 



It's not used anymore since the last commit.

Signed-off-by: default avatarLuiz Capitulino <lcapitulino@redhat.com>
Reviewed-by: default avatarEric Blake <eblake@redhat.com>
Acked-by: default avatarGerd Hoffmann <kraxel@redhat.com>
parent 48c043d0

qemu-char.c

+0 −64
Original line number Diff line number Diff line
@@ -2796,70 +2796,6 @@ static CharDriverState *qemu_chr_open_socket(QemuOpts *opts) 
    return NULL;

}



/***********************************************************/

/* Memory chardev */

typedef struct {

    size_t outbuf_size;

    size_t outbuf_capacity;

    uint8_t *outbuf;

} MemoryDriver;



static int mem_chr_write(CharDriverState *chr, const uint8_t *buf, int len)

{

    MemoryDriver *d = chr->opaque;



    /* TODO: the QString implementation has the same code, we should

     * introduce a generic way to do this in cutils.c */

    if (d->outbuf_capacity < d->outbuf_size + len) {

        /* grow outbuf */

        d->outbuf_capacity += len;

        d->outbuf_capacity *= 2;

        d->outbuf = g_realloc(d->outbuf, d->outbuf_capacity);

    }



    memcpy(d->outbuf + d->outbuf_size, buf, len);

    d->outbuf_size += len;



    return len;

}



void qemu_chr_init_mem(CharDriverState *chr)

{

    MemoryDriver *d;



    d = g_malloc(sizeof(*d));

    d->outbuf_size = 0;

    d->outbuf_capacity = 4096;

    d->outbuf = g_malloc0(d->outbuf_capacity);



    memset(chr, 0, sizeof(*chr));

    chr->opaque = d;

    chr->chr_write = mem_chr_write;

}



QString *qemu_chr_mem_to_qs(CharDriverState *chr)

{

    MemoryDriver *d = chr->opaque;

    return qstring_from_substr((char *) d->outbuf, 0, d->outbuf_size - 1);

}



/* NOTE: this driver can not be closed with qemu_chr_delete()! */

void qemu_chr_close_mem(CharDriverState *chr)

{

    MemoryDriver *d = chr->opaque;



    g_free(d->outbuf);

    g_free(chr->opaque);

    chr->opaque = NULL;

    chr->chr_write = NULL;

}



size_t qemu_chr_mem_osize(const CharDriverState *chr)

{

    const MemoryDriver *d = chr->opaque;

    return d->outbuf_size;

}



/*********************************************************/

/* Ring buffer chardev */