mem: share hugepage info primary and secondary

[dpdk.git] / lib / librte_eal / common / eal_filesystem.h

diff --git a/lib/librte_eal/common/eal_filesystem.h b/lib/librte_eal/common/eal_filesystem.h
index 1c6048b..ad059ef 100644 (file)
--- a/lib/librte_eal/common/eal_filesystem.h
+++ b/lib/librte_eal/common/eal_filesystem.h
@@ -85,6 +85,23 @@ eal_hugepage_info_path(void)
        return buffer;
 }
 
+/** Path of hugepage info file. */
+#define HUGEPAGE_FILE_FMT "%s/.%s_hugepage_file"
+
+static inline const char *
+eal_hugepage_file_path(void)
+{
+       static char buffer[PATH_MAX]; /* static so auto-zeroed */
+       const char *directory = default_config_dir;
+       const char *home_dir = getenv("HOME");
+
+       if (getuid() != 0 && home_dir != NULL)
+               directory = home_dir;
+       snprintf(buffer, sizeof(buffer) - 1, HUGEPAGE_FILE_FMT, directory,
+                       internal_config.hugefile_prefix);
+       return buffer;
+}
+
 /** String format for hugepage map files. */
 #define HUGEFILE_FMT "%s/%smap_%d"
 #define TEMP_HUGEFILE_FMT "%s/%smap_temp_%d"