1 files changed, 63 insertions, 0 deletions
diff --git a/common/settings.h b/common/settings.h
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+++ b/common/settings.h
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+/*
+ *  nextpnr -- Next Generation Place and Route
+ *
+ *  Copyright (C) 2018  Miodrag Milanovic <miodrag@symbioticeda.com>
+ *
+ *  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 appear in all copies.
+ *
+ *  THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
+ *  WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
+ *  MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
+ *  ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
+ *  WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
+ *  ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
+ *  OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
+ *
+ */
+#ifndef SETTINGS_H
+#define SETTINGS_H
+
+#include <boost/lexical_cast.hpp>
+#include "log.h"
+#include "nextpnr.h"
+
+NEXTPNR_NAMESPACE_BEGIN
+
+class Settings
+{
+  public:
+    explicit Settings(Context *ctx) : ctx(ctx) {}
+
+    template <typename T> T get(const char *name, T defaultValue)
+    {
+        try {
+            IdString id = ctx->id(name);
+            auto pair = ctx->settings.emplace(id, std::to_string(defaultValue));
+            if (!pair.second) {
+                return boost::lexical_cast<T>(pair.first->second);
+            }
+            
+        } catch (boost::bad_lexical_cast &) {
+            log_error("Problem reading setting %s, using default value\n", name);
+        }
+        return defaultValue;
+    }
+
+    template <typename T> void set(const char *name, T value)
+    {
+        IdString id = ctx->id(name);
+        auto pair = ctx->settings.emplace(id, std::to_string(value));
+        if (!pair.second) {
+            ctx->settings[pair.first->first] = value;
+        }        
+    }
+
+  private:
+    Context *ctx;
+};
+
+NEXTPNR_NAMESPACE_END
+
+#endif // SETTINGS_H