copy lib now part of pvDatabase

2019-06-26 10:47:58 -04:00
parent f2d6e05816
commit e57348a4c5
22 changed files with 35 additions and 43 deletions
--- a/src/pv/pvArrayPlugin.h
+++ b/src/pv/pvArrayPlugin.h
@@ -0,0 +1,98 @@
+/* pvArrayPlugin.h */
+/*
+ * The License for this software can be found in the file LICENSE that is included with the distribution.
+ */
+
+#ifndef PVARRAYPLUGIN_H
+#define PVARRAYPLUGIN_H
+
+#include <string>
+#include <map>
+#include <pv/lock.h>
+#include <pv/pvData.h>
+#include <pv/pvPlugin.h>
+
+#include <shareLib.h>
+
+namespace epics { namespace pvCopy{
+
+class PVArrayPlugin;
+class PVArrayFilter;
+
+typedef std::tr1::shared_ptr<PVArrayPlugin> PVArrayPluginPtr;
+typedef std::tr1::shared_ptr<PVArrayFilter> PVArrayFilterPtr;
+
+
+/**
+ * @brief A plugin for a filter that gets a sub array from a PVScalarArray.
+ *
+ * @author mrk
+ * @since date 2017.02.23
+ */
+class epicsShareClass PVArrayPlugin : public PVPlugin
+{
+private:
+    PVArrayPlugin();
+public:
+    POINTER_DEFINITIONS(PVArrayPlugin);
+    virtual ~PVArrayPlugin();
+    /**
+     * Factory
+     */
+    static void create();
+    /**
+     * Create a PVFilter.
+     * @param requestValue The value part of a name=value request option.
+     * @param pvCopy The PVCopy to which the PVFilter will be attached.
+     * @param master The field in the master PVStructure to which the PVFilter will be attached
+     * @return The PVFilter.
+     * Null is returned if master or requestValue is not appropriate for the plugin.
+     */
+    virtual PVFilterPtr create(
+         const std::string & requestValue,
+         const PVCopyPtr & pvCopy,
+         const epics::pvData::PVFieldPtr & master);
+};
+
+/**
+ * @brief  A filter that gets a sub array from a PVScalarArray.
+ */
+class epicsShareClass PVArrayFilter : public PVFilter
+{
+private:
+    long start;
+    long increment;
+    long end;
+    epics::pvData::PVScalarArrayPtr masterArray;
+
+    PVArrayFilter(long start,long increment,long end,const epics::pvData::PVScalarArrayPtr & masterArray);
+public:
+    POINTER_DEFINITIONS(PVArrayFilter);
+    virtual ~PVArrayFilter();
+    /**
+     * Create a PVArrayFilter.
+     * @param requestValue The value part of a name=value request option.
+     * @param master The field in the master PVStructure to which the PVFilter will be attached.
+     * @return The PVFilter.
+     * A null is returned if master or requestValue is not appropriate for the plugin.
+     */
+    static PVArrayFilterPtr create(const std::string & requestValue,const epics::pvData::PVFieldPtr & master);
+    /**
+     * Perform a filter operation
+     * @param pvCopy The field in the copy PVStructure.
+     * @param bitSet A bitSet for copyPVStructure.
+     * @param toCopy (true,false) means copy (from master to copy,from copy to master)
+     * @return if filter (modified, did not modify) destination.
+     * Null is returned if master or requestValue is not appropriate for the plugin.
+     */
+    bool filter(const epics::pvData::PVFieldPtr & pvCopy,const epics::pvData::BitSetPtr & bitSet,bool toCopy);
+    /**
+     * Get the filter name.
+     * @return The name.
+     */
+    std::string getName();
+};
+
+}}
+#endif  /* PVARRAYPLUGIN_H */
+