Imported Upstream version 16.04

[deb_dpdk.git] / app / test / test_errno.c

diff --git a/app/test/test_errno.c b/app/test/test_errno.c
new file mode 100644 (file)
index 0000000..f221eac
--- /dev/null
+++ b/app/test/test_errno.c
@@ -0,0 +1,120 @@
+/*-
+ *   BSD LICENSE
+ *
+ *   Copyright(c) 2010-2014 Intel Corporation. All rights reserved.
+ *   All rights reserved.
+ *
+ *   Redistribution and use in source and binary forms, with or without
+ *   modification, are permitted provided that the following conditions
+ *   are met:
+ *
+ *     * Redistributions of source code must retain the above copyright
+ *       notice, this list of conditions and the following disclaimer.
+ *     * Redistributions in binary form must reproduce the above copyright
+ *       notice, this list of conditions and the following disclaimer in
+ *       the documentation and/or other materials provided with the
+ *       distribution.
+ *     * Neither the name of Intel Corporation nor the names of its
+ *       contributors may be used to endorse or promote products derived
+ *       from this software without specific prior written permission.
+ *
+ *   THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ *   "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ *   LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+ *   A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+ *   OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+ *   SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+ *   LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+ *   DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+ *   THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ *   (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+ *   OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+
+#include <stdint.h>
+#include <stdio.h>
+#include <stdarg.h>
+#include <errno.h>
+#include <string.h>
+#include <rte_per_lcore.h>
+#include <rte_errno.h>
+#include <rte_string_fns.h>
+
+#include "test.h"
+
+static int
+test_errno(void)
+{
+       const char *rte_retval;
+       const char *libc_retval;
+#ifdef RTE_EXEC_ENV_BSDAPP
+       /* BSD has a colon in the string, unlike linux */
+       const char unknown_code_result[] = "Unknown error: %d";
+#else
+       const char unknown_code_result[] = "Unknown error %d";
+#endif
+       char expected_libc_retval[sizeof(unknown_code_result)+3];
+
+       /* use a small selection of standard errors for testing */
+       int std_errs[] = {EAGAIN, EBADF, EACCES, EINTR, EINVAL};
+       /* test ALL registered RTE error codes for overlap */
+       int rte_errs[] = {E_RTE_SECONDARY, E_RTE_NO_CONFIG};
+       unsigned i;
+
+       rte_errno = 0;
+       if (rte_errno != 0)
+               return -1;
+       /* check for standard errors we return the same as libc */
+       for (i = 0; i < sizeof(std_errs)/sizeof(std_errs[0]); i++){
+               rte_retval = rte_strerror(std_errs[i]);
+               libc_retval = strerror(std_errs[i]);
+               printf("rte_strerror: '%s', strerror: '%s'\n",
+                               rte_retval, libc_retval);
+               if (strcmp(rte_retval, libc_retval) != 0)
+                       return -1;
+       }
+       /* for rte-specific errors ensure we return a different string
+        * and that the string for libc is for an unknown error
+        */
+       for (i = 0; i < sizeof(rte_errs)/sizeof(rte_errs[0]); i++){
+               rte_retval = rte_strerror(rte_errs[i]);
+               libc_retval = strerror(rte_errs[i]);
+               printf("rte_strerror: '%s', strerror: '%s'\n",
+                               rte_retval, libc_retval);
+               if (strcmp(rte_retval, libc_retval) == 0)
+                       return -1;
+               /* generate appropriate error string for unknown error number
+                * and then check that this is what we got back. If not, we have
+                * a duplicate error number that conflicts with errno.h */
+               snprintf(expected_libc_retval, sizeof(expected_libc_retval),
+                               unknown_code_result, rte_errs[i]);
+               if ((strcmp(expected_libc_retval, libc_retval) != 0) &&
+                               (strcmp("", libc_retval) != 0)){
+                       printf("Error, duplicate error code %d\n", rte_errs[i]);
+                       return -1;
+               }
+       }
+
+       /* ensure that beyond RTE_MAX_ERRNO, we always get an unknown code */
+       rte_retval = rte_strerror(RTE_MAX_ERRNO + 1);
+       libc_retval = strerror(RTE_MAX_ERRNO + 1);
+       snprintf(expected_libc_retval, sizeof(expected_libc_retval),
+                       unknown_code_result, RTE_MAX_ERRNO + 1);
+       printf("rte_strerror: '%s', strerror: '%s'\n",
+                       rte_retval, libc_retval);
+       if ((strcmp(rte_retval, libc_retval) != 0) ||
+                       (strcmp(expected_libc_retval, libc_retval) != 0)){
+               if (strcmp("", libc_retval) != 0){
+                       printf("Failed test for RTE_MAX_ERRNO + 1 value\n");
+                       return -1;
+               }
+       }
+
+       return 0;
+}
+
+static struct test_command errno_cmd = {
+       .command = "errno_autotest",
+       .callback = test_errno,
+};
+REGISTER_TEST_COMMAND(errno_cmd);