From 1381524f95514df81b0a3f7e21a743352839590f Mon Sep 17 00:00:00 2001
From: Jason Volk <jason@zemos.net>
Date: Sat, 9 Mar 2019 18:48:32 -0800
Subject: [PATCH] ircd::m::device: Add has(user, device_id, property) overload
 to interface suite.

---
 include/ircd/m/device.h |  1 +
 ircd/m.cc               | 15 +++++++++++++++
 modules/m_device.cc     | 16 ++++++++++++++++
 3 files changed, 32 insertions(+)

diff --git a/include/ircd/m/device.h b/include/ircd/m/device.h
index 07dd92fc8..350b8d7c4 100644
--- a/include/ircd/m/device.h
+++ b/include/ircd/m/device.h
@@ -124,6 +124,7 @@ struct ircd::m::device
 	static bool for_each(const user &, const string_view &id, const closure_bool &); // each property
 	static bool get(std::nothrow_t, const user &, const string_view &id, const string_view &prop, const closure &);
 	static bool get(const user &, const string_view &id, const string_view &prop, const closure &);
+	static bool has(const user &, const string_view &id, const string_view &prop);
 	static bool has(const user &, const string_view &id);
 	static bool del(const user &, const string_view &id);
 	static bool set(const user &, const string_view &id, const string_view &prop, const string_view &val);
diff --git a/ircd/m.cc b/ircd/m.cc
index 43bde4dfa..8241b6108 100644
--- a/ircd/m.cc
+++ b/ircd/m.cc
@@ -1714,6 +1714,21 @@ ircd::m::device::has(const m::user &user,
 	return function(user, id);
 }
 
+bool
+ircd::m::device::has(const m::user &user,
+                     const string_view &id,
+                     const string_view &prop)
+{
+	using prototype = bool (const m::user &, const string_view &id, const string_view &prop);
+
+	static mods::import<prototype> function
+	{
+		"m_device", "ircd::m::device::has"
+	};
+
+	return function(user, id, prop);
+}
+
 bool
 ircd::m::device::get(const m::user &user,
                      const string_view &id,
diff --git a/modules/m_device.cc b/modules/m_device.cc
index a9058afdd..a2063cb5c 100644
--- a/modules/m_device.cc
+++ b/modules/m_device.cc
@@ -174,6 +174,22 @@ ircd::m::device::has(const m::user &user,
 	return ret;
 }
 
+bool
+IRCD_MODULE_EXPORT
+ircd::m::device::has(const m::user &user,
+                     const string_view &id,
+                     const string_view &prop)
+{
+	bool ret{false};
+	get(std::nothrow, user, id, prop, [&ret]
+	(const string_view &value)
+	{
+		ret = !empty(value);
+	});
+
+	return ret;
+}
+
 bool
 IRCD_MODULE_EXPORT
 ircd::m::device::get(std::nothrow_t,