qemu/backends/rng-builtin.c
Eduardo Habkost 8110fa1d94 Use DECLARE_*CHECKER* macros
Generated using:

 $ ./scripts/codeconverter/converter.py -i \
   --pattern=TypeCheckMacro $(git grep -l '' -- '*.[ch]')

Reviewed-by: Daniel P. Berrangé <berrange@redhat.com>
Reviewed-by: Juan Quintela <quintela@redhat.com>
Message-Id: <20200831210740.126168-12-ehabkost@redhat.com>
Reviewed-by: Juan Quintela <quintela@redhat.com>
Message-Id: <20200831210740.126168-13-ehabkost@redhat.com>
Message-Id: <20200831210740.126168-14-ehabkost@redhat.com>
Signed-off-by: Eduardo Habkost <ehabkost@redhat.com>
2020-09-09 09:27:09 -04:00

81 lines
1.8 KiB
C

/*
* QEMU Builtin Random Number Generator Backend
*
* This work is licensed under the terms of the GNU GPL, version 2 or later.
* See the COPYING file in the top-level directory.
*/
#include "qemu/osdep.h"
#include "sysemu/rng.h"
#include "qemu/main-loop.h"
#include "qemu/guest-random.h"
#include "qom/object.h"
typedef struct RngBuiltin RngBuiltin;
DECLARE_INSTANCE_CHECKER(RngBuiltin, RNG_BUILTIN,
TYPE_RNG_BUILTIN)
struct RngBuiltin {
RngBackend parent;
QEMUBH *bh;
};
static void rng_builtin_receive_entropy_bh(void *opaque)
{
RngBuiltin *s = opaque;
while (!QSIMPLEQ_EMPTY(&s->parent.requests)) {
RngRequest *req = QSIMPLEQ_FIRST(&s->parent.requests);
qemu_guest_getrandom_nofail(req->data, req->size);
req->receive_entropy(req->opaque, req->data, req->size);
rng_backend_finalize_request(&s->parent, req);
}
}
static void rng_builtin_request_entropy(RngBackend *b, RngRequest *req)
{
RngBuiltin *s = RNG_BUILTIN(b);
qemu_bh_schedule(s->bh);
}
static void rng_builtin_init(Object *obj)
{
RngBuiltin *s = RNG_BUILTIN(obj);
s->bh = qemu_bh_new(rng_builtin_receive_entropy_bh, s);
}
static void rng_builtin_finalize(Object *obj)
{
RngBuiltin *s = RNG_BUILTIN(obj);
qemu_bh_delete(s->bh);
}
static void rng_builtin_class_init(ObjectClass *klass, void *data)
{
RngBackendClass *rbc = RNG_BACKEND_CLASS(klass);
rbc->request_entropy = rng_builtin_request_entropy;
}
static const TypeInfo rng_builtin_info = {
.name = TYPE_RNG_BUILTIN,
.parent = TYPE_RNG_BACKEND,
.instance_size = sizeof(RngBuiltin),
.instance_init = rng_builtin_init,
.instance_finalize = rng_builtin_finalize,
.class_init = rng_builtin_class_init,
};
static void register_types(void)
{
type_register_static(&rng_builtin_info);
}
type_init(register_types);