journal-remote: split out µhttpd support and main() into a separate file

This is in preparation to reusing the RemoteServer in other concepts.
I tried to keep changes to minimum:
- arg_* global variables are now passed as state in RemoteServer
- exported functions get the "journal_remote_" prefix
- some variables are renamed

In particular, there is an ugly global RemoveServer* variable. It was originally
added because µhttpd did not allow state to be passed to the callbacks. I'm not
sure if this has been remediated in µhttpd, but either way, this is not changed
here, the global variable is only renamed for clarity.

diff --git a/meson.build b/meson.build
index 6691ca7fb723d8b805623b6f206d3719df5cfb8b..1f29a8dd350f2d53d8b2b7685721018a22498728 100644 (file)
--- a/meson.build
+++ b/meson.build
@@ -1923,6 +1923,7 @@ executable('elogind-user-runtime-dir',
 executable('elogind-user-runtime-dir',
 executable('elogind-user-runtime-dir',
 executable('elogind-user-runtime-dir',
+executable('elogind-user-runtime-dir',
 executable('elogind-user-runtime-dir',
            user_runtime_dir_sources,
            include_directories : includes,
@@ -2283,7 +2284,8 @@ endif
 #         s_j_remote = executable('systemd-journal-remote',
 #                                 systemd_journal_remote_sources,
 #                                 include_directories : includes,
-#                                 link_with : [libshared],
+#                                 link_with : [libshared,
+#                                              libsystemd_journal_remote],
 #                                 dependencies : [threads,
 #                                                 libmicrohttpd,
 #                                                 libgnutls,