Add trivial examples of simple mq layer, fix simple mq layer for recent mq changes

3 files changed, 39 insertions, 3 deletions

diff --git a/examples/mq-read.lua b/examples/mq-read.lua
new file mode 100755
index 0000000..3b3703b
--- /dev/null
+++ b/examples/mq-read.lua
@@ -0,0 +1,22 @@
+#!/usr/bin/lua
+
+local sio = require "luxio.simple"
+local mq = require "luxio.mq"
+
+h = mq.open("/luxio-mq", "r", sio.tomode "0777")
+
+print(h)
+
+while true do
+	local msg = assert(h:pull())
+	for k, v in pairs(msg) do
+		print(k, v)
+	end
+
+	if msg.die then
+		h:close()
+		mq.unlink "/luxio-mq"
+		os.exit()
+	end
+end
+
diff --git a/examples/mq-write.lua b/examples/mq-write.lua
new file mode 100755
index 0000000..0a243fd
--- /dev/null
+++ b/examples/mq-write.lua
@@ -0,0 +1,14 @@
+#!/usr/bin/lua
+
+local sio = require "luxio.simple"
+local mq = require "luxio.mq"
+
+h = mq.open("/luxio-mq", "w", sio.tomode "0777")
+
+print(h)
+
+h:push { cat = "meow", dog = "woof", horse = "neigh", webmonkey = "AJAX!" }
+h:push { die = true }
+
+h:close()
+
diff --git a/luxio/mq.lua b/luxio/mq.lua
index 4ba8c65..6e11f8d 100644
--- a/luxio/mq.lua
+++ b/luxio/mq.lua
@@ -101,8 +101,8 @@ local mq_mt = {
    end,
 
    __tostring = function(x)
-      return ("message queue: %s %s (%d)%s"):format(
-	 x.rw_mode, x.path, x.desc, x.closed and " closed" or "")
+      return ("message queue: %s %s (%s)%s"):format(
+	 x.rw_mode, x.path, tostring(x.desc), x.closed and " closed" or "")
    end,
 
    __gc = mq_meta_gc
@@ -155,7 +155,7 @@ local function open(path, rw, mode)
       mq, errno = l.mq_open(path, rw_mode)
    end
 
-   if mq < 0 then
+   if type(mq) == "number" and mq == -1 then
       return err("mq_open", errno)
    end