numam-dpdk/app/test/test_tailq.c
David Marchand 9b7e0dbb6c tailq: get rid of broken reserve api
The "reserve" macros and functions do not check if the requested entry is free.
They do nothing more than the lookup function (which itself "creates" entries
...).
The rte_tailq api is marked as "internal use" in documentation and these macros
are only used in test application, so just get rid of them.

Signed-off-by: David Marchand <david.marchand@6wind.com>
Acked-by: Neil Horman <nhorman@tuxdriver.com>
2015-03-10 11:51:12 +01:00

128 lines
3.9 KiB
C

/*-
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#include <stdio.h>
#include <stdint.h>
#include <stdarg.h>
#include <errno.h>
#include <sys/queue.h>
#include <rte_eal.h>
#include <rte_eal_memconfig.h>
#include <rte_string_fns.h>
#include "test.h"
#define do_return(...) do { \
printf("Error at %s, line %d: ", __func__, __LINE__); \
printf(__VA_ARGS__); \
return 1; \
} while (0)
#define DEFAULT_TAILQ (RTE_TAILQ_NUM)
static struct rte_tailq_entry d_elem;
static int
test_tailq_create(void)
{
struct rte_tailq_entry_head *d_head;
unsigned i;
/* create a first tailq and check its non-null */
d_head = RTE_TAILQ_LOOKUP_BY_IDX(DEFAULT_TAILQ, rte_tailq_entry_head);
if (d_head == NULL)
do_return("Error allocating dummy_q0\n");
/* check we can add an item to it
*/
TAILQ_INSERT_TAIL(d_head, &d_elem, next);
/* try allocating dummy_q0 again, and check for failure */
if (RTE_TAILQ_LOOKUP_BY_IDX(DEFAULT_TAILQ, rte_tailq_entry_head) == NULL)
do_return("Error, non-null result returned when attemption to "
"re-allocate a tailq\n");
/* now fill up the tailq slots available and check we get an error */
for (i = RTE_TAILQ_NUM; i < RTE_MAX_TAILQ; i++){
if ((d_head = RTE_TAILQ_LOOKUP_BY_IDX(i,
rte_tailq_entry_head)) == NULL)
break;
}
/* check that we had an error return before RTE_MAX_TAILQ */
if (i != RTE_MAX_TAILQ)
do_return("Error, we did not have a reservation as expected\n");
return 0;
}
static int
test_tailq_lookup(void)
{
/* run successful test - check result is found */
struct rte_tailq_entry_head *d_head;
struct rte_tailq_entry *d_ptr;
d_head = RTE_TAILQ_LOOKUP_BY_IDX(DEFAULT_TAILQ, rte_tailq_entry_head);
if (d_head == NULL)
do_return("Error with tailq lookup\n");
TAILQ_FOREACH(d_ptr, d_head, next)
if (d_ptr != &d_elem)
do_return("Error with tailq returned from lookup - "
"expected element not found\n");
/* now try a bad/error lookup */
d_head = RTE_TAILQ_LOOKUP_BY_IDX(RTE_MAX_TAILQ, rte_tailq_entry_head);
if (d_head != NULL)
do_return("Error, lookup does not return NULL for bad tailq name\n");
return 0;
}
static int
test_tailq(void)
{
int ret = 0;
ret |= test_tailq_create();
ret |= test_tailq_lookup();
return ret;
}
static struct test_command tailq_cmd = {
.command = "tailq_autotest",
.callback = test_tailq,
};
REGISTER_TEST_COMMAND(tailq_cmd);