HardwareState: HWMon data reader
Ported HWMon driver from
cla-sysrepo@19163e50ab062a8b5b75f754b30c22fdbd62b03a.
In cla-sysrepo, these drivers provided a property-based API, i.e., you
asked for a specific property (i.e., a filename) and the contents of the
file was returned.
In velia, we do not need this one-by-one property access. We provide all
attributes with a single call.
Change-Id: Ife783f21d4552e3b8bc69436d2f8fa53eb6745b7
diff --git a/src/utils/io.cpp b/src/utils/io.cpp
index 4a18668..86dbd7c 100644
--- a/src/utils/io.cpp
+++ b/src/utils/io.cpp
@@ -53,4 +53,17 @@
return bytes;
}
+/** @brief Reads a int64_t number from a file. */
+int64_t readFileInt64(const std::filesystem::path& path)
+{
+ std::ifstream ifs(openStream(path));
+ int64_t res;
+
+ if (ifs >> res) {
+ return res;
+ }
+
+ throw std::domain_error("Could not read int64_t value from '" + std::string(path) + "'.");
+}
+
}