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34 #include <cmdline_parse.h>
37 #ifndef RTE_EXEC_ENV_BAREMETAL
42 /* eal_filesystem.h is not a public header file, so use relative path */
43 #include "../../lib/librte_eal/linuxapp/eal/include/eal_filesystem.h"
46 test_parse_sysfs_value(void)
48 char filename[PATH_MAX] = "";
49 char proc_path[PATH_MAX];
50 char file_template[] = "/tmp/eal_test_XXXXXX";
51 int tmp_file_handle = -1;
53 unsigned valid_number;
54 unsigned long retval = 0;
56 printf("Testing function eal_parse_sysfs_value()\n");
58 /* get a temporary filename to use for all tests - create temp file handle and then
59 * use /proc to get the actual file that we can open */
60 tmp_file_handle = mkstemp(file_template);
61 if (tmp_file_handle == -1) {
62 perror("mkstemp() failure");
65 rte_snprintf(proc_path, sizeof(proc_path), "/proc/self/fd/%d", tmp_file_handle);
66 if (readlink(proc_path, filename, sizeof(filename)) < 0) {
67 perror("readlink() failure");
70 printf("Temporary file is: %s\n", filename);
72 /* test we get an error value if we use file before it's created */
73 printf("Test reading a missing file ...\n");
74 if (eal_parse_sysfs_value("/dev/not-quite-null", &retval) == 0) {
75 printf("Error with eal_parse_sysfs_value() - returned success on reading empty file\n");
78 printf("Confirmed return error when reading empty file\n");
80 /* test reading a valid number value with "\n" on the end */
81 printf("Test reading valid values ...\n");
83 fd = fopen(filename,"w");
85 printf("line %d, Error opening %s: %s\n", __LINE__, filename, strerror(errno));
88 fprintf(fd,"%u\n", valid_number);
91 if (eal_parse_sysfs_value(filename, &retval) < 0) {
92 printf("eal_parse_sysfs_value() returned error - test failed\n");
95 if (retval != valid_number) {
96 printf("Invalid value read by eal_parse_sysfs_value() - test failed\n");
99 printf("Read '%u\\n' ok\n", valid_number);
101 /* test reading a valid hex number value with "\n" on the end */
103 fd = fopen(filename,"w");
105 printf("line %d, Error opening %s: %s\n", __LINE__, filename, strerror(errno));
108 fprintf(fd,"0x%x\n", valid_number);
111 if (eal_parse_sysfs_value(filename, &retval) < 0) {
112 printf("eal_parse_sysfs_value() returned error - test failed\n");
115 if (retval != valid_number) {
116 printf("Invalid value read by eal_parse_sysfs_value() - test failed\n");
119 printf("Read '0x%x\\n' ok\n", valid_number);
121 printf("Test reading invalid values ...\n");
123 /* test reading an empty file - expect failure!*/
124 fd = fopen(filename,"w");
126 printf("line %d, Error opening %s: %s\n", __LINE__, filename, strerror(errno));
131 if (eal_parse_sysfs_value(filename, &retval) == 0) {
132 printf("eal_parse_sysfs_value() read invalid value - test failed\n");
136 /* test reading a valid number value *without* "\n" on the end - expect failure!*/
138 fd = fopen(filename,"w");
140 printf("line %d, Error opening %s: %s\n", __LINE__, filename, strerror(errno));
143 fprintf(fd,"%u", valid_number);
146 if (eal_parse_sysfs_value(filename, &retval) == 0) {
147 printf("eal_parse_sysfs_value() read invalid value - test failed\n");
151 /* test reading a valid number value followed by string - expect failure!*/
153 fd = fopen(filename,"w");
155 printf("line %d, Error opening %s: %s\n", __LINE__, filename, strerror(errno));
158 fprintf(fd,"%uJ\n", valid_number);
161 if (eal_parse_sysfs_value(filename, &retval) == 0) {
162 printf("eal_parse_sysfs_value() read invalid value - test failed\n");
166 /* test reading a non-numeric value - expect failure!*/
167 fd = fopen(filename,"w");
169 printf("line %d, Error opening %s: %s\n", __LINE__, filename, strerror(errno));
172 fprintf(fd,"error\n");
175 if (eal_parse_sysfs_value(filename, &retval) == 0) {
176 printf("eal_parse_sysfs_value() read invalid value - test failed\n");
180 close(tmp_file_handle);
182 printf("eal_parse_sysfs_value() - OK\n");
188 if (tmp_file_handle > 0)
189 close(tmp_file_handle);
190 if (filename[0] != '\0')
198 if (test_parse_sysfs_value() < 0)
203 /* baremetal does not have a filesystem */