p2p: Add P2PManager class
This class makes it simple to use p2p both as a client and a server.
For now, this feature is hidden behind a flag. The intent is that this
flag can be toggled with the crosh command - for now, only the reading
of the flag is implemented - see chromium:260441 for the remaining
work.
BUG=chromium:260426,chromium:260441
TEST=New unit tests + unit tests pass
Change-Id: If1879f4535c8e7e3af7c6d378e6df4054264b794
Reviewed-on: https://chromium-review.googlesource.com/64824
Reviewed-by: David Zeuthen <zeuthen@chromium.org>
Commit-Queue: David Zeuthen <zeuthen@chromium.org>
Tested-by: David Zeuthen <zeuthen@chromium.org>
diff --git a/constants.cc b/constants.cc
index 874a004..31454cc 100644
--- a/constants.cc
+++ b/constants.cc
@@ -38,6 +38,7 @@
const char kPrefsManifestMetadataSize[] = "manifest-metadata-size";
const char kPrefsNumReboots[] = "num-reboots";
const char kPrefsNumResponsesSeen[] = "num-responses-seen";
+const char kPrefsP2PEnabled[] = "p2p-enabled";
const char kPrefsPayloadAttemptNumber[] = "payload-attempt-number";
const char kPrefsPreviousVersion[] = "previous-version";
const char kPrefsResumedUpdateFailures[] = "resumed-update-failures";