[lib] add missing file

libopenfpga/libpcf/src/io/pcf_writer.cpp

@@ -0,0 +1,52 @@
+/******************************************************************************
+ * Inspired from https://github.com/genbtc/VerilogPCFparser
+ ******************************************************************************/
+#include <sstream>
+
+/* Headers from vtrutil library */
+#include "vtr_log.h"
+#include "vtr_assert.h"
+#include "vtr_time.h"
+
+/* Headers from openfpgautil library */
+#include "openfpga_digest.h"
+/* Headers from arch openfpga library */
+#include "write_xml_utils.h" 
+
+#include "pcf_writer.h"
+
+/* begin namespace openfpga */
+namespace openfpga {
+
+/**************************************************
+ * Constants
+ *************************************************/
+constexpr char* CMD_SET_IO = "set_io";
+
+/********************************************************************
+ * A writer to output a repack pin constraint object to XML format
+ *
+ * Return 0 if successful
+ * Return 1 if there are serious errors when parsing data
+ * Return 2 if fail when opening files
+ *******************************************************************/
+int write_pcf(const char* fname,
+              const PcfData& pcf_data) {
+  vtr::ScopedStartFinishTimer timer("Write " + std::string(fname));
+
+  /* Create a file handler */
+  std::fstream fp;
+  /* Open the file stream */
+  fp.open(std::string(fname), std::fstream::out | std::fstream::trunc);
+
+  /* Write from data */
+  for (const PcfIoConstraintId& io_id : pcf_data.io_constraints()) {
+    fp << CMD_SET_IO << " "; 
+    fp << pcf_data.io_net(io_id).c_str() << " "; 
+    fp << generate_xml_port_name(pcf_data.io_pin(io_id)).c_str() << "\n"; 
+  }
+
+  return 0;
+}
+
+} /* end namespace openfpga */