From 277dd31b08afcadceec7852012aa8b3c2cecbea7 Mon Sep 17 00:00:00 2001
From: Josh Blum
Date: Sun, 14 Apr 2013 02:07:40 -0700
Subject: gras: move code into component files

---
 lib/task_fail.cpp | 58 +++++++++++++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 58 insertions(+)
 create mode 100644 lib/task_fail.cpp

(limited to 'lib/task_fail.cpp')

diff --git a/lib/task_fail.cpp b/lib/task_fail.cpp
new file mode 100644
index 0000000..c30b668
--- /dev/null
+++ b/lib/task_fail.cpp
@@ -0,0 +1,58 @@
+// Copyright (C) by Josh Blum. See LICENSE.txt for licensing information.
+
+#include "element_impl.hpp"
+#include <gras_impl/block_actor.hpp>
+
+using namespace gras;
+
+void Block::mark_output_fail(const size_t which_output)
+{
+    (*this)->block->output_fail(which_output);
+}
+
+void Block::mark_input_fail(const size_t which_input)
+{
+    (*this)->block->input_fail(which_input);
+}
+
+void BlockActor::input_fail(const size_t i)
+{
+    //input failed, accumulate and try again
+    if (not this->input_queues.is_accumulated(i))
+    {
+        this->input_queues.accumulate(i);
+        this->task_kicker();
+        return;
+    }
+
+    //otherwise check for done, else wait for more
+    if (this->inputs_done[i])
+    {
+        this->mark_done();
+        return;
+    }
+
+    //check that the input is not already maxed
+    if (this->input_queues.is_front_maximal(i))
+    {
+        throw std::runtime_error("input_fail called on maximum_items buffer");
+    }
+
+    //mark fail: not ready until a new buffer appears
+    this->input_queues.fail(i);
+}
+
+void BlockActor::output_fail(const size_t i)
+{
+    SBuffer &buff = this->output_queues.front(i);
+
+    //check that the input is not already maxed
+    const size_t front_items = buff.length/this->output_configs[i].item_size;
+    if (front_items >= this->output_configs[i].maximum_items)
+    {
+        throw std::runtime_error("output_fail called on maximum_items buffer");
+    }
+
+    //mark fail: not ready until a new buffer appears
+    this->output_queues.fail(i);
+}
-- 
cgit