--- /dev/null
+/*-
+ * 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 "test.h"
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <errno.h>
+
+/* eal_filesystem.h is not a public header file, so use relative path */
+#include "../../lib/librte_eal/common/eal_filesystem.h"
+
+static int
+test_parse_sysfs_value(void)
+{
+ char filename[PATH_MAX] = "";
+ char proc_path[PATH_MAX];
+ char file_template[] = "/tmp/eal_test_XXXXXX";
+ int tmp_file_handle = -1;
+ FILE *fd = NULL;
+ unsigned valid_number;
+ unsigned long retval = 0;
+
+#ifdef RTE_EXEC_ENV_BSDAPP
+ /* BSD doesn't have /proc/pid/fd */
+ return 0;
+#endif
+
+ printf("Testing function eal_parse_sysfs_value()\n");
+
+ /* get a temporary filename to use for all tests - create temp file handle and then
+ * use /proc to get the actual file that we can open */
+ tmp_file_handle = mkstemp(file_template);
+ if (tmp_file_handle == -1) {
+ perror("mkstemp() failure");
+ goto error;
+ }
+ snprintf(proc_path, sizeof(proc_path), "/proc/self/fd/%d", tmp_file_handle);
+ if (readlink(proc_path, filename, sizeof(filename)) < 0) {
+ perror("readlink() failure");
+ goto error;
+ }
+ printf("Temporary file is: %s\n", filename);
+
+ /* test we get an error value if we use file before it's created */
+ printf("Test reading a missing file ...\n");
+ if (eal_parse_sysfs_value("/dev/not-quite-null", &retval) == 0) {
+ printf("Error with eal_parse_sysfs_value() - returned success on reading empty file\n");
+ goto error;
+ }
+ printf("Confirmed return error when reading empty file\n");
+
+ /* test reading a valid number value with "\n" on the end */
+ printf("Test reading valid values ...\n");
+ valid_number = 15;
+ fd = fopen(filename,"w");
+ if (fd == NULL) {
+ printf("line %d, Error opening %s: %s\n", __LINE__, filename, strerror(errno));
+ goto error;
+ }
+ fprintf(fd,"%u\n", valid_number);
+ fclose(fd);
+ fd = NULL;
+ if (eal_parse_sysfs_value(filename, &retval) < 0) {
+ printf("eal_parse_sysfs_value() returned error - test failed\n");
+ goto error;
+ }
+ if (retval != valid_number) {
+ printf("Invalid value read by eal_parse_sysfs_value() - test failed\n");
+ goto error;
+ }
+ printf("Read '%u\\n' ok\n", valid_number);
+
+ /* test reading a valid hex number value with "\n" on the end */
+ valid_number = 25;
+ fd = fopen(filename,"w");
+ if (fd == NULL) {
+ printf("line %d, Error opening %s: %s\n", __LINE__, filename, strerror(errno));
+ goto error;
+ }
+ fprintf(fd,"0x%x\n", valid_number);
+ fclose(fd);
+ fd = NULL;
+ if (eal_parse_sysfs_value(filename, &retval) < 0) {
+ printf("eal_parse_sysfs_value() returned error - test failed\n");
+ goto error;
+ }
+ if (retval != valid_number) {
+ printf("Invalid value read by eal_parse_sysfs_value() - test failed\n");
+ goto error;
+ }
+ printf("Read '0x%x\\n' ok\n", valid_number);
+
+ printf("Test reading invalid values ...\n");
+
+ /* test reading an empty file - expect failure!*/
+ fd = fopen(filename,"w");
+ if (fd == NULL) {
+ printf("line %d, Error opening %s: %s\n", __LINE__, filename, strerror(errno));
+ goto error;
+ }
+ fclose(fd);
+ fd = NULL;
+ if (eal_parse_sysfs_value(filename, &retval) == 0) {
+ printf("eal_parse_sysfs_value() read invalid value - test failed\n");
+ goto error;
+ }
+
+ /* test reading a valid number value *without* "\n" on the end - expect failure!*/
+ valid_number = 3;
+ fd = fopen(filename,"w");
+ if (fd == NULL) {
+ printf("line %d, Error opening %s: %s\n", __LINE__, filename, strerror(errno));
+ goto error;
+ }
+ fprintf(fd,"%u", valid_number);
+ fclose(fd);
+ fd = NULL;
+ if (eal_parse_sysfs_value(filename, &retval) == 0) {
+ printf("eal_parse_sysfs_value() read invalid value - test failed\n");
+ goto error;
+ }
+
+ /* test reading a valid number value followed by string - expect failure!*/
+ valid_number = 3;
+ fd = fopen(filename,"w");
+ if (fd == NULL) {
+ printf("line %d, Error opening %s: %s\n", __LINE__, filename, strerror(errno));
+ goto error;
+ }
+ fprintf(fd,"%uJ\n", valid_number);
+ fclose(fd);
+ fd = NULL;
+ if (eal_parse_sysfs_value(filename, &retval) == 0) {
+ printf("eal_parse_sysfs_value() read invalid value - test failed\n");
+ goto error;
+ }
+
+ /* test reading a non-numeric value - expect failure!*/
+ fd = fopen(filename,"w");
+ if (fd == NULL) {
+ printf("line %d, Error opening %s: %s\n", __LINE__, filename, strerror(errno));
+ goto error;
+ }
+ fprintf(fd,"error\n");
+ fclose(fd);
+ fd = NULL;
+ if (eal_parse_sysfs_value(filename, &retval) == 0) {
+ printf("eal_parse_sysfs_value() read invalid value - test failed\n");
+ goto error;
+ }
+
+ close(tmp_file_handle);
+ unlink(filename);
+ printf("eal_parse_sysfs_value() - OK\n");
+ return 0;
+
+error:
+ if (fd)
+ fclose(fd);
+ if (tmp_file_handle > 0)
+ close(tmp_file_handle);
+ if (filename[0] != '\0')
+ unlink(filename);
+ return -1;
+}
+
+static int
+test_eal_fs(void)
+{
+ if (test_parse_sysfs_value() < 0)
+ return -1;
+ return 0;
+}
+
+static struct test_command eal_fs_cmd = {
+ .command = "eal_fs_autotest",
+ .callback = test_eal_fs,
+};
+REGISTER_TEST_COMMAND(eal_fs_cmd);
Code Review / deb_dpdk.git / blobdiff