| /* Marshalling and unmarshalling. |
| Copyright (C) 2014-2021 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; |
| } |