tools/virtio: add noring tool

Useful to measure testing framework overhead.

Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
This commit is contained in:
Michael S. Tsirkin 2016-05-24 15:21:05 +03:00
parent ef1b144d23
commit 139ab4d4e6
2 changed files with 72 additions and 1 deletions

View File

@ -1,6 +1,6 @@
all:
all: ring virtio_ring_0_9 virtio_ring_poll virtio_ring_inorder
all: ring virtio_ring_0_9 virtio_ring_poll virtio_ring_inorder noring
CFLAGS += -Wall
CFLAGS += -pthread -O2 -ggdb
@ -15,11 +15,13 @@ ring: ring.o main.o
virtio_ring_0_9: virtio_ring_0_9.o main.o
virtio_ring_poll: virtio_ring_poll.o main.o
virtio_ring_inorder: virtio_ring_inorder.o main.o
noring: noring.o main.o
clean:
-rm main.o
-rm ring.o ring
-rm virtio_ring_0_9.o virtio_ring_0_9
-rm virtio_ring_poll.o virtio_ring_poll
-rm virtio_ring_inorder.o virtio_ring_inorder
-rm noring.o noring
.PHONY: all clean

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@ -0,0 +1,69 @@
#define _GNU_SOURCE
#include "main.h"
#include <assert.h>
/* stub implementation: useful for measuring overhead */
void alloc_ring(void)
{
}
/* guest side */
int add_inbuf(unsigned len, void *buf, void *datap)
{
return 0;
}
/*
* skb_array API provides no way for producer to find out whether a given
* buffer was consumed. Our tests merely require that a successful get_buf
* implies that add_inbuf succeed in the past, and that add_inbuf will succeed,
* fake it accordingly.
*/
void *get_buf(unsigned *lenp, void **bufp)
{
return "Buffer";
}
void poll_used(void)
{
}
void disable_call()
{
assert(0);
}
bool enable_call()
{
assert(0);
}
void kick_available(void)
{
assert(0);
}
/* host side */
void disable_kick()
{
assert(0);
}
bool enable_kick()
{
assert(0);
}
void poll_avail(void)
{
}
bool use_buf(unsigned *lenp, void **bufp)
{
return true;
}
void call_used(void)
{
assert(0);
}