[couchdb-ioq] 03/21: Fallback to direct I/O if ioq is not running

[ch...@apache.org]

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chewbranca pushed a commit to branch ioq-per-shard-or-user
in repository https://gitbox.apache.org/repos/asf/couchdb-ioq.git

commit c7f9ad1c0f77b601aa456e62c963793d517c1026
Author: Robert Newson <rn...@apache.org>
AuthorDate: Fri Sep 5 18:22:44 2014 +0100

    Fallback to direct I/O if ioq is not running
---
 src/ioq.erl | 7 ++++++-
 1 file changed, 6 insertions(+), 1 deletion(-)

diff --git a/src/ioq.erl b/src/ioq.erl
index 4983b73..b761a0b 100644
--- a/src/ioq.erl
+++ b/src/ioq.erl
@@ -37,7 +37,12 @@ start_link() ->
 
 call(Fd, Msg, Priority) ->
     Request = #request{fd=Fd, msg=Msg, priority=Priority, from=self()},
-    gen_server:call(?MODULE, Request, infinity).
+    try
+        gen_server:call(?MODULE, Request, infinity)
+    catch
+        exit:{noproc,_} ->
+            gen_server:call(Fd, Msg, infinity)
+    end.
 
 init(_) ->
     Ratio = list_to_float(config:get("ioq", "ratio", "0.01")),