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- /* Marshalling and unmarshalling.
- Copyright (C) 2014-2022 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"
- #include "rpc.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::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_array_start (connection *conn, char id,
- size_t n_elements)
- {
- if (!conn->send (id))
- return FAIL;
- unsigned long long r = n_elements;
- if (!conn->send (&r, sizeof (r)))
- return FAIL;
- return OK;
- }
- cc1_plugin::status
- cc1_plugin::marshall_array_elmts (connection *conn, size_t n_bytes,
- void *elements)
- {
- return conn->send (elements, n_bytes);
- }
- cc1_plugin::status
- cc1_plugin::unmarshall_array_start (connection *conn, char id,
- size_t *n_elements)
- {
- unsigned long long len;
- if (!conn->require (id))
- return FAIL;
- if (!conn->get (&len, sizeof (len)))
- return FAIL;
- *n_elements = len;
- return OK;
- }
- cc1_plugin::status
- cc1_plugin::unmarshall_array_elmts (connection *conn, size_t n_bytes,
- void *elements)
- {
- return conn->get (elements, n_bytes);
- }
- cc1_plugin::status
- cc1_plugin::marshall (connection *conn, const gcc_type_array *a)
- {
- size_t len;
- if (a)
- len = a->n_elements;
- else
- len = (size_t)-1;
- if (!marshall_array_start (conn, 'a', len))
- return FAIL;
- if (!a)
- return OK;
- return marshall_array_elmts (conn, len * sizeof (a->elements[0]),
- a->elements);
- }
- cc1_plugin::status
- cc1_plugin::unmarshall (connection *conn, gcc_type_array **result)
- {
- size_t len;
- if (!unmarshall_array_start (conn, 'a', &len))
- return FAIL;
- if (len == (size_t)-1)
- {
- *result = NULL;
- return OK;
- }
- cc1_plugin::unique_ptr<gcc_type_array> gta (new gcc_type_array {});
- gta->n_elements = len;
- gta->elements = new gcc_type[len];
- if (!unmarshall_array_elmts (conn,
- len * sizeof (gta->elements[0]),
- gta->elements))
- return FAIL;
- *result = gta.release ();
- return OK;
- }
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