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37 * Paths used for storing hugepage and config info for multi-process support.
40 #ifndef _EAL_LINUXAPP_FS_PATHS_H
41 #define _EAL_LINUXAPP_FS_PATHS_H
43 /** Path of rte config file. */
44 #define RUNTIME_CONFIG_FMT "%s/.%s_config"
46 static const char *default_config_dir = "/var/run";
48 static inline const char *
49 eal_runtime_config_path(void)
51 static char buffer[PATH_MAX]; /* static so auto-zeroed */
52 const char *directory = default_config_dir;
53 const char *home_dir = getenv("HOME");
55 if (getuid() != 0 && home_dir != NULL)
57 rte_snprintf(buffer, sizeof(buffer) - 1, RUNTIME_CONFIG_FMT, directory,
58 internal_config.hugefile_prefix);
62 /** Path of hugepage info file. */
63 #define HUGEPAGE_INFO_FMT "%s/.%s_hugepage_info"
65 static inline const char *
66 eal_hugepage_info_path(void)
68 static char buffer[PATH_MAX]; /* static so auto-zeroed */
69 const char *directory = default_config_dir;
70 const char *home_dir = getenv("HOME");
72 if (getuid() != 0 && home_dir != NULL)
74 rte_snprintf(buffer, sizeof(buffer) - 1, HUGEPAGE_INFO_FMT, directory,
75 internal_config.hugefile_prefix);
79 /** String format for hugepage map files. */
80 #define HUGEFILE_FMT "%s/%smap_%d"
82 static inline const char *
83 eal_get_hugefile_path(char *buffer, size_t buflen, const char *hugedir, int f_id)
85 rte_snprintf(buffer, buflen, HUGEFILE_FMT, hugedir,
86 internal_config.hugefile_prefix, f_id);
87 buffer[buflen - 1] = '\0';
91 /** define the default filename prefix for the %s values above */
92 #define HUGEFILE_PREFIX_DEFAULT "rte"
95 #endif /* _EAL_LINUXAPP_FS_PATHS_H */