gdbsupport/gdb_vecs.cc

   1 /* Some commonly-used VEC types.
   2
   3    Copyright (C) 2012-2020 Free Software Foundation, Inc.
   4
   5    This file is part of GDB.
   6
   7    This program is free software; you can redistribute it and/or modify
   8    it under the terms of the GNU General Public License as published by
   9    the Free Software Foundation; either version 3 of the License, or
  10    (at your option) any later version.
  11
  12    This program is distributed in the hope that it will be useful,
  13    but WITHOUT ANY WARRANTY; without even the implied warranty of
  14    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  15    GNU General Public License for more details.
  16
  17    You should have received a copy of the GNU General Public License
  18    along with this program.  If not, see <http://www.gnu.org/licenses/>.  */
  19
  20 #include "common-defs.h"
  21 #include "gdb_vecs.h"
  22 #include "host-defs.h"
  23
  24 /* Worker function to split character delimiter separated string of fields
  25    STR into a char pointer vector.  */
  26
  27 static void
  28 delim_string_to_char_ptr_vec_append
  29   (std::vector<gdb::unique_xmalloc_ptr<char>> *vecp, const char *str,
  30    char delimiter)
  31 {
  32   do
  33     {
  34       size_t this_len;
  35       const char *next_field;
  36       char *this_field;
  37
  38       next_field = strchr (str, delimiter);
  39       if (next_field == NULL)
  40         this_len = strlen (str);
  41       else
  42         {
  43           this_len = next_field - str;
  44           next_field++;
  45         }
  46
  47       this_field = (char *) xmalloc (this_len + 1);
  48       memcpy (this_field, str, this_len);
  49       this_field[this_len] = '\0';
  50       vecp->emplace_back (this_field);
  51
  52       str = next_field;
  53     }
  54   while (str != NULL);
  55 }
  56
  57 /* See gdb_vecs.h.  */
  58
  59 std::vector<gdb::unique_xmalloc_ptr<char>>
  60 delim_string_to_char_ptr_vec (const char *str, char delimiter)
  61 {
  62   std::vector<gdb::unique_xmalloc_ptr<char>> retval;
  63
  64   delim_string_to_char_ptr_vec_append (&retval, str, delimiter);
  65
  66   return retval;
  67 }
  68
  69 /* See gdb_vecs.h.  */
  70
  71 void
  72 dirnames_to_char_ptr_vec_append
  73   (std::vector<gdb::unique_xmalloc_ptr<char>> *vecp, const char *dirnames)
  74 {
  75   delim_string_to_char_ptr_vec_append (vecp, dirnames, DIRNAME_SEPARATOR);
  76 }
  77
  78 /* See gdb_vecs.h.  */
  79
  80 std::vector<gdb::unique_xmalloc_ptr<char>>
  81 dirnames_to_char_ptr_vec (const char *dirnames)
  82 {
  83   std::vector<gdb::unique_xmalloc_ptr<char>> retval;
  84
  85   dirnames_to_char_ptr_vec_append (&retval, dirnames);
  86
  87   return retval;
  88 }