SoW-2020-0003: Trace Hit Counters

[lttng-tools.git] / src / common / utils.h

diff --git a/src/common/utils.h b/src/common/utils.h
index dec4cd8aa2268490eae52adb55795d76ab62a07b..6fb5b2dfdc8de2f3ee8ac03d79b596a1fc910caf 100644 (file)
--- a/src/common/utils.h
+++ b/src/common/utils.h
@@ -53,10 +53,23 @@ int utils_truncate_stream_file(int fd, off_t length);
 int utils_show_help(int section, const char *page_name, const char *help_msg);
 int utils_get_memory_available(size_t *value);
 int utils_get_memory_total(size_t *value);
+int utils_get_number_of_possible_cpus(void);
 int utils_change_working_directory(const char *path);
 enum lttng_error_code utils_user_id_from_name(
                const char *user_name, uid_t *user_id);
 enum lttng_error_code utils_group_id_from_name(
                const char *group_name, gid_t *group_id);
 
+/*
+ * Parse `str` as an unsigned long long value.
+ *
+ * Return 0 on success.  Return -1 on failure which can be because:
+ *
+ * - `str` is zero length
+ * - `str` contains invalid
+ */
+LTTNG_HIDDEN
+int utils_parse_unsigned_long_long(const char *str,
+               unsigned long long *value);
+
 #endif /* _COMMON_UTILS_H */