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35 #include <cmdline_parse.h>
38 #ifndef RTE_EXEC_ENV_BAREMETAL
43 /* eal_filesystem.h is not a public header file, so use relative path */
44 #include "../../lib/librte_eal/linuxapp/eal/include/eal_filesystem.h"
47 test_parse_sysfs_value(void)
49 char filename[PATH_MAX] = "";
50 char proc_path[PATH_MAX];
51 char file_template[] = "/tmp/eal_test_XXXXXX";
52 int tmp_file_handle = -1;
54 unsigned valid_number;
55 unsigned long retval = 0;
57 printf("Testing function eal_parse_sysfs_value()\n");
59 /* get a temporary filename to use for all tests - create temp file handle and then
60 * use /proc to get the actual file that we can open */
61 tmp_file_handle = mkstemp(file_template);
62 if (tmp_file_handle == -1) {
63 perror("mkstemp() failure");
66 rte_snprintf(proc_path, sizeof(proc_path), "/proc/self/fd/%d", tmp_file_handle);
67 if (readlink(proc_path, filename, sizeof(filename)) < 0) {
68 perror("readlink() failure");
71 printf("Temporary file is: %s\n", filename);
73 /* test we get an error value if we use file before it's created */
74 printf("Test reading a missing file ...\n");
75 if (eal_parse_sysfs_value("/dev/not-quite-null", &retval) == 0) {
76 printf("Error with eal_parse_sysfs_value() - returned success on reading empty file\n");
79 printf("Confirmed return error when reading empty file\n");
81 /* test reading a valid number value with "\n" on the end */
82 printf("Test reading valid values ...\n");
84 fd = fopen(filename,"w");
86 printf("line %d, Error opening %s: %s\n", __LINE__, filename, strerror(errno));
89 fprintf(fd,"%u\n", valid_number);
92 if (eal_parse_sysfs_value(filename, &retval) < 0) {
93 printf("eal_parse_sysfs_value() returned error - test failed\n");
96 if (retval != valid_number) {
97 printf("Invalid value read by eal_parse_sysfs_value() - test failed\n");
100 printf("Read '%u\\n' ok\n", valid_number);
102 /* test reading a valid hex number value with "\n" on the end */
104 fd = fopen(filename,"w");
106 printf("line %d, Error opening %s: %s\n", __LINE__, filename, strerror(errno));
109 fprintf(fd,"0x%x\n", valid_number);
112 if (eal_parse_sysfs_value(filename, &retval) < 0) {
113 printf("eal_parse_sysfs_value() returned error - test failed\n");
116 if (retval != valid_number) {
117 printf("Invalid value read by eal_parse_sysfs_value() - test failed\n");
120 printf("Read '0x%x\\n' ok\n", valid_number);
122 printf("Test reading invalid values ...\n");
124 /* test reading an empty file - expect failure!*/
125 fd = fopen(filename,"w");
127 printf("line %d, Error opening %s: %s\n", __LINE__, filename, strerror(errno));
132 if (eal_parse_sysfs_value(filename, &retval) == 0) {
133 printf("eal_parse_sysfs_value() read invalid value - test failed\n");
137 /* test reading a valid number value *without* "\n" on the end - expect failure!*/
139 fd = fopen(filename,"w");
141 printf("line %d, Error opening %s: %s\n", __LINE__, filename, strerror(errno));
144 fprintf(fd,"%u", valid_number);
147 if (eal_parse_sysfs_value(filename, &retval) == 0) {
148 printf("eal_parse_sysfs_value() read invalid value - test failed\n");
152 /* test reading a valid number value followed by string - expect failure!*/
154 fd = fopen(filename,"w");
156 printf("line %d, Error opening %s: %s\n", __LINE__, filename, strerror(errno));
159 fprintf(fd,"%uJ\n", valid_number);
162 if (eal_parse_sysfs_value(filename, &retval) == 0) {
163 printf("eal_parse_sysfs_value() read invalid value - test failed\n");
167 /* test reading a non-numeric value - expect failure!*/
168 fd = fopen(filename,"w");
170 printf("line %d, Error opening %s: %s\n", __LINE__, filename, strerror(errno));
173 fprintf(fd,"error\n");
176 if (eal_parse_sysfs_value(filename, &retval) == 0) {
177 printf("eal_parse_sysfs_value() read invalid value - test failed\n");
181 close(tmp_file_handle);
183 printf("eal_parse_sysfs_value() - OK\n");
189 if (tmp_file_handle > 0)
190 close(tmp_file_handle);
191 if (filename[0] != '\0')
199 if (test_parse_sysfs_value() < 0)
204 /* baremetal does not have a filesystem */