mainloop: add uniqueness to busname

There can be multiple daemon instances that have the
same devpath which leads to a collision which errors silently.
This adds uniqueness to the path, which was no longer human-readable
to avoid this collision situation.

Tested: Ran on quanta-q71l with unique devices and two instances
pointing to the same device and it correctly set them up with unique
but deterministic bus names.
Change-Id: Id5aea3c3df5f793b28557a74995608ec40792a43
Signed-off-by: Patrick Venture <venture@google.com>

1 files changed, 3 insertions, 0 deletions

diff --git a/readd.cpp b/readd.cpp
index 3c2c2d2..78edc77 100644
--- a/readd.cpp
+++ b/readd.cpp
@@ -35,6 +35,7 @@ int main(int argc, char** argv)
 
     // Parse out path argument.
     auto path = (*options)["dev-path"];
+    auto param = path;
     if (path != ArgumentParser::empty_string)
     {
         // This path may either be a device path (starts with
@@ -52,6 +53,7 @@ int main(int argc, char** argv)
     if (path == ArgumentParser::empty_string)
     {
         path = (*options)["path"];
+        param = path;
     }
 
     if (path == ArgumentParser::empty_string)
@@ -71,6 +73,7 @@ int main(int argc, char** argv)
 
     MainLoop loop(
         sdbusplus::bus::new_default(),
+        param,
         path,
         calloutPath,
         BUSNAME_PREFIX,