/*
- * Copyright (c) 2009 Nicira Networks.
+ * Copyright (c) 2009, 2010 Nicira Networks.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
#include <assert.h>
#include "dpif.h"
+#ifdef __cplusplus
+extern "C" {
+#endif
+
/* Open vSwitch datapath interface.
*
* This structure should be treated as opaque by dpif implementations. */
struct dpif {
- const struct dpif_class *class;
+ const struct dpif_class *dpif_class;
char *name;
uint8_t netflow_engine_type;
uint8_t netflow_engine_id;
void dpif_init(struct dpif *, const struct dpif_class *, const char *name,
uint8_t netflow_engine_type, uint8_t netflow_engine_id);
static inline void dpif_assert_class(const struct dpif *dpif,
- const struct dpif_class *class)
+ const struct dpif_class *dpif_class)
{
- assert(dpif->class == class);
+ assert(dpif->dpif_class == dpif_class);
}
/* Datapath interface class structure, to be defined by each implementation of
*
* If successful, 'dpif' will not be used again except as an argument for
* the 'close' member function. */
- int (*delete)(struct dpif *dpif);
+ int (*destroy)(struct dpif *dpif);
/* Retrieves statistics for 'dpif' into 'stats'. */
int (*get_stats)(const struct dpif *dpif, struct odp_stats *stats);
* Return value is 0 or a positive errno value. EOPNOTSUPP indicates that
* the datapath does not support sFlow, as does a null pointer.
*
- * A probability of 0 means sample no packets, UINT32_MAX means sample
- * every packet, and other values are intermediate probabilities. */
+ * '*probability' is expressed as the number of packets out of UINT_MAX to
+ * sample, e.g. probability/UINT_MAX is the probability of sampling a given
+ * packet. */
int (*get_sflow_probability)(const struct dpif *dpif,
uint32_t *probability);
* is 0 or a positive errno value. EOPNOTSUPP indicates that the datapath
* does not support sFlow, as does a null pointer.
*
- * A probability of 0 means sample no packets, UINT32_MAX means sample
- * every packet, and other values are intermediate probabilities. */
+ * 'probability' is expressed as the number of packets out of UINT_MAX to
+ * sample, e.g. probability/UINT_MAX is the probability of sampling a given
+ * packet. */
int (*set_sflow_probability)(struct dpif *dpif, uint32_t probability);
/* Attempts to receive a message from 'dpif'. If successful, stores the
extern const struct dpif_class dpif_linux_class;
extern const struct dpif_class dpif_netdev_class;
+#ifdef __cplusplus
+}
+#endif
+
#endif /* dpif-provider.h */