1 files changed, 166 insertions, 0 deletions
diff --git a/libcc1/marshall.cc b/libcc1/marshall.cc
new file mode 100644
index 00000000000..9119de652b7
--- /dev/null
+++ b/libcc1/marshall.cc
@@ -0,0 +1,166 @@
+/* Marshalling and unmarshalling.
+   Copyright (C) 2014 Free Software Foundation, Inc.
+
+This file is part of GCC.
+
+GCC is free software; you can redistribute it and/or modify it under
+the terms of the GNU General Public License as published by the Free
+Software Foundation; either version 3, or (at your option) any later
+version.
+
+GCC is distributed in the hope that it will be useful, but WITHOUT ANY
+WARRANTY; without even the implied warranty of MERCHANTABILITY or
+FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
+for more details.
+
+You should have received a copy of the GNU General Public License
+along with GCC; see the file COPYING3.  If not see
+<http://www.gnu.org/licenses/>.  */
+
+#include <cc1plugin-config.h>
+#include <new>
+#include <string.h>
+#include "marshall.hh"
+#include "connection.hh"
+
+cc1_plugin::status
+cc1_plugin::unmarshall_check (connection *conn, unsigned long long check)
+{
+  unsigned long long r;
+
+  if (!unmarshall (conn, &r))
+    return FAIL;
+  return check == r ? OK : FAIL;
+}
+
+cc1_plugin::status
+cc1_plugin::marshall_intlike (connection *conn, unsigned long long val)
+{
+  if (!conn->send ('i'))
+    return FAIL;
+  return conn->send (&val, sizeof (val));
+}
+
+cc1_plugin::status
+cc1_plugin::unmarshall_intlike (connection *conn, unsigned long long *result)
+{
+  if (!conn->require ('i'))
+    return FAIL;
+  return conn->get (result, sizeof (*result));
+}
+
+cc1_plugin::status
+cc1_plugin::unmarshall (connection *conn, enum gcc_c_symbol_kind *result)
+{
+  protocol_int p;
+  if (!unmarshall_intlike (conn, &p))
+    return FAIL;
+  *result = (enum gcc_c_symbol_kind) p;
+  return OK;
+}
+
+cc1_plugin::status
+cc1_plugin::unmarshall (connection *conn, enum gcc_c_oracle_request *result)
+{
+  protocol_int p;
+  if (!unmarshall_intlike (conn, &p))
+    return FAIL;
+  *result = (enum gcc_c_oracle_request) p;
+  return OK;
+}
+
+cc1_plugin::status
+cc1_plugin::unmarshall (connection *conn, enum gcc_qualifiers *result)
+{
+  protocol_int p;
+  if (!unmarshall_intlike (conn, &p))
+    return FAIL;
+  *result = (enum gcc_qualifiers) p;
+  return OK;
+}
+
+cc1_plugin::status
+cc1_plugin::marshall (connection *conn, const char *str)
+{
+  if (!conn->send ('s'))
+    return FAIL;
+
+  unsigned long long len = str == NULL ? -1ULL : strlen (str);
+  if (!conn->send (&len, sizeof (len)))
+    return FAIL;
+
+  if (str == NULL)
+    return OK;
+
+  return conn->send (str, len);
+}
+
+cc1_plugin::status
+cc1_plugin::unmarshall (connection *conn, char **result)
+{
+  unsigned long long len;
+
+  if (!conn->require ('s'))
+    return FAIL;
+  if (!conn->get (&len, sizeof (len)))
+    return FAIL;
+
+  if (len == -1ULL)
+    {
+      *result = NULL;
+      return OK;
+    }
+
+  char *str = new (std::nothrow) char[len + 1];
+  if (str == NULL)
+    return FAIL;
+
+  if (!conn->get (str, len))
+    {
+      delete[] str;
+      return FAIL;
+    }
+
+  str[len] = '\0';
+  *result = str;
+
+  return OK;
+}
+
+cc1_plugin::status
+cc1_plugin::marshall (connection *conn, const gcc_type_array *a)
+{
+  if (!conn->send ('a'))
+    return FAIL;
+
+  unsigned long long r = a->n_elements;
+  if (!conn->send (&r, sizeof (r)))
+    return FAIL;
+
+  return conn->send (a->elements, r * sizeof (a->elements[0]));
+}
+
+cc1_plugin::status
+cc1_plugin::unmarshall (connection *conn, gcc_type_array **result)
+{
+  unsigned long long len;
+
+  if (!conn->require ('a'))
+    return FAIL;
+  if (!conn->get (&len, sizeof (len)))
+    return FAIL;
+
+  *result = new gcc_type_array;
+
+  (*result)->n_elements = len;
+  (*result)->elements = new gcc_type[len];
+
+  if (!conn->get ((*result)->elements, len * sizeof ((*result)->elements[0])))
+    {
+      delete[] (*result)->elements;
+      delete *result;
+      return FAIL;
+    }
+
+  return OK;
+}