This reverts commit 93d63c010a.
Reason for revert: b/131312539 - All aosp-master-with-phones phones failing boot / health check.
Change-Id: Id4239f93484b7d6b8d9bcd355a59cbd40d9766e2
unique_fd's implicit conversion to int has led to tons of problems (see
all of the overloads for close, fdopen, fdopendir, etc.). Add a switch
that can turn it off, and reduce the ridiculous amount of work to fix up
callers by introducing a borrowed_fd type that can be constructed from
either int or unique_fd.
Test: treehugger
Change-Id: If77cf5cbcaddacdaec5919a15b3520fb68f51a62
Currently adb only realizes a TCP transport has gone away when it tries
to send a packet, which caused problems in particular for `adb reboot`
since no packets are sent, leading to the client hanging until Ctrl+C.
This CL turns on TCP keepalive packets to send 1 packet every second,
allowing up to 10 failures before disconnecting. Using built-in TCP
functionality turns out to be much cleaner in this case than trying to
implement our own keepalive packets at the application layer, and
should be more lightweight since it's all done in the TCP stack.
Bug: http://b/23093474
Change-Id: Ifb41cbb85b9752a9f394e1eed3c6ac4da47a4e4d
Ian Kasprzak