core: make sendfile behaviour switchable. Defaults to using the sendf…

…ile from Yaws.

See also http://erlang.org/pipermail/erlang-bugs/2013-October/003818.html

priv/erlang.config.in

@@ -50,7 +50,10 @@
    %% {perf_log_dir, "priv/log/perf/"},
 
 %%% Location of wmtrace logs (defaults to "priv/wmtrace" if not specified).
-   {wmtrace_dir, "priv/log/wmtrace/"}
+   {wmtrace_dir, "priv/log/wmtrace/"},
+
+%%% Which sendfile command to use: disable, yaws, erlang
+   {use_sendfile, yaws}
 
   ]}
 ].

rebar.config

@@ -31,7 +31,11 @@
   {webzmachine, ".*", {git, "git://github.com/zotonic/webzmachine.git", {branch, "master"}}},
   {z_stdlib, ".*", {git, "git://github.com/zotonic/z_stdlib.git", {branch, "master"}}},
   {folsom, ".*", {git, "git://github.com/boundary/folsom.git", {branch, "master"}}},
-
+  {parse_trans, ".*", {git, "git://github.com/uwiger/parse_trans.git", {branch, "master"}}},
+  % {jobs, ".*", {git, "git://github.com/esl/jobs.git", {branch, "master"}}},
+  % {gproc, ".*", {git, "git://github.com/uwiger/gproc.git", {branch, "master"}}},
+  {sendfile, ".*", {git, "git://github.com/tuncer/sendfile.git", {branch, "master"}}},
+
   % emqtt and its dependency
   {elog, ".*", {git, "git://github.com/zotonic/elog.git", {branch, "master"}}},
   {emqtt, ".*", {git, "git://github.com/zotonic/emqtt.git", {branch, "zotonic"}}}

src/zotonic.app.src

@@ -15,5 +15,6 @@
   {env, []},
   {applications, [kernel, stdlib, crypto, mnesia,
                   bert, dh_date, eiconv, lager, folsom,
-                  mimetypes, webzmachine, z_stdlib]}
+                  mimetypes, webzmachine, z_stdlib,
+                  sendfile]}
  ]}.