From e621e20afcb4472c4940a2cffc6b02df601877bc Mon Sep 17 00:00:00 2001
From: Jason Volk <jason@zemos.net>
Date: Sun, 5 Feb 2023 12:26:30 -0800
Subject: [PATCH] ircd::m::vm: Split vm::sequence into unit.

---
 matrix/Makefile.am |  1 +
 matrix/vm.cc       | 79 -------------------------------------------
 matrix/vm_seq.cc   | 84 ++++++++++++++++++++++++++++++++++++++++++++++
 3 files changed, 85 insertions(+), 79 deletions(-)
 create mode 100644 matrix/vm_seq.cc

diff --git a/matrix/Makefile.am b/matrix/Makefile.am
index b6fcb942e..7725c2955 100644
--- a/matrix/Makefile.am
+++ b/matrix/Makefile.am
@@ -179,6 +179,7 @@ libircd_matrix_la_SOURCES += push.cc
 libircd_matrix_la_SOURCES += filter.cc
 libircd_matrix_la_SOURCES += txn.cc
 libircd_matrix_la_SOURCES += vm.cc
+libircd_matrix_la_SOURCES += vm_seq.cc
 libircd_matrix_la_SOURCES += vm_eval.cc
 libircd_matrix_la_SOURCES += vm_inject.cc
 libircd_matrix_la_SOURCES += vm_execute.cc
diff --git a/matrix/vm.cc b/matrix/vm.cc
index c7d77c3b1..cc43cc841 100644
--- a/matrix/vm.cc
+++ b/matrix/vm.cc
@@ -179,82 +179,3 @@ ircd::m::vm::reflect(const enum fault &code)
 
 	return "??????";
 }
-
-//
-// sequence
-//
-
-decltype(ircd::m::vm::sequence::dock)
-ircd::m::vm::sequence::dock;
-
-decltype(ircd::m::vm::sequence::retired)
-ircd::m::vm::sequence::retired;
-
-decltype(ircd::m::vm::sequence::committed)
-ircd::m::vm::sequence::committed;
-
-decltype(ircd::m::vm::sequence::uncommitted)
-ircd::m::vm::sequence::uncommitted;
-
-uint64_t
-ircd::m::vm::sequence::min()
-{
-	const auto *const e
-	{
-		eval::seqmin()
-	};
-
-	return e? get(*e) : 0;
-}
-
-uint64_t
-ircd::m::vm::sequence::max()
-{
-	const auto *const e
-	{
-		eval::seqmax()
-	};
-
-	return e? get(*e) : 0;
-}
-
-uint64_t
-ircd::m::vm::sequence::get(id::event::buf &event_id)
-{
-	static constexpr auto column_idx
-	{
-		json::indexof<event, "event_id"_>()
-	};
-
-	auto &column
-	{
-		dbs::event_column.at(column_idx)
-	};
-
-	const auto it
-	{
-		column.rbegin()
-	};
-
-	if(!it)
-	{
-		// If this iterator is invalid the events db should
-		// be completely fresh.
-		assert(db::sequence(*dbs::events) == 0);
-		return 0;
-	}
-
-	const auto &ret
-	{
-		byte_view<uint64_t>(it->first)
-	};
-
-	event_id = it->second;
-	return ret;
-}
-
-const uint64_t &
-ircd::m::vm::sequence::get(const eval &eval)
-{
-	return eval.sequence;
-}
diff --git a/matrix/vm_seq.cc b/matrix/vm_seq.cc
new file mode 100644
index 000000000..0775d6116
--- /dev/null
+++ b/matrix/vm_seq.cc
@@ -0,0 +1,84 @@
+// Matrix Construct
+//
+// Copyright (C) Matrix Construct Developers, Authors & Contributors
+// Copyright (C) 2016-2023 Jason Volk <jason@zemos.net>
+//
+// Permission to use, copy, modify, and/or distribute this software for any
+// purpose with or without fee is hereby granted, provided that the above
+// copyright notice and this permission notice is present in all copies. The
+// full license for this software is available in the LICENSE file.
+
+decltype(ircd::m::vm::sequence::dock)
+ircd::m::vm::sequence::dock;
+
+decltype(ircd::m::vm::sequence::retired)
+ircd::m::vm::sequence::retired;
+
+decltype(ircd::m::vm::sequence::committed)
+ircd::m::vm::sequence::committed;
+
+decltype(ircd::m::vm::sequence::uncommitted)
+ircd::m::vm::sequence::uncommitted;
+
+uint64_t
+ircd::m::vm::sequence::min()
+{
+	const auto *const e
+	{
+		eval::seqmin()
+	};
+
+	return e? get(*e) : 0;
+}
+
+uint64_t
+ircd::m::vm::sequence::max()
+{
+	const auto *const e
+	{
+		eval::seqmax()
+	};
+
+	return e? get(*e) : 0;
+}
+
+uint64_t
+ircd::m::vm::sequence::get(id::event::buf &event_id)
+{
+	static constexpr auto column_idx
+	{
+		json::indexof<event, "event_id"_>()
+	};
+
+	auto &column
+	{
+		dbs::event_column.at(column_idx)
+	};
+
+	const auto it
+	{
+		column.rbegin()
+	};
+
+	if(!it)
+	{
+		// If this iterator is invalid the events db should
+		// be completely fresh.
+		assert(db::sequence(*dbs::events) == 0);
+		return 0;
+	}
+
+	const auto &ret
+	{
+		byte_view<uint64_t>(it->first)
+	};
+
+	event_id = it->second;
+	return ret;
+}
+
+const uint64_t &
+ircd::m::vm::sequence::get(const eval &eval)
+{
+	return eval.sequence;
+}