gcc/jit/jit-tempdir.h

   1 /* Managing temporary directories and their content within libgccjit.so
   2    Copyright (C) 2014 Free Software Foundation, Inc.
   3    Contributed by David Malcolm <dmalcolm@redhat.com>.
   4
   5 This file is part of GCC.
   6
   7 GCC is free software; you can redistribute it and/or modify it
   8 under the terms of the GNU General Public License as published by
   9 the Free Software Foundation; either version 3, or (at your option)
  10 any later version.
  11
  12 GCC is distributed in the hope that it will be useful, but
  13 WITHOUT ANY WARRANTY; without even the implied warranty of
  14 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  15 General Public License for more details.
  16
  17 You should have received a copy of the GNU General Public License
  18 along with GCC; see the file COPYING3.  If not see
  19 <http://www.gnu.org/licenses/>.  */
  20
  21 #ifndef JIT_TEMPDIR_H
  22 #define JIT_TEMPDIR_H
  23
  24 namespace gcc {
  25
  26 namespace jit {
  27
  28 /* A class to keep track of the jit::playback::context's tempdir.
  29
  30    The tempdir has the following layout:
  31
  32      /tmp/libgccjit-XXXXXX/
  33                          ./fake.c
  34                             (doesn't exist, but the rest of the
  35                              compiler needs a source code filename)
  36
  37                          ./fake.s
  38                               (created by toplev::main)
  39
  40                          ./fake.so
  41                               (created by playback::context::convert_to_dso).
  42
  43   It is normally deleted from the filesystem in the playback::context's
  44   dtor, unless GCC_JIT_BOOL_OPTION_KEEP_INTERMEDIATES was set.  */
  45
  46 class tempdir
  47 {
  48  public:
  49   tempdir (int keep_intermediates);
  50   ~tempdir ();
  51
  52   bool create ();
  53
  54   const char * get_path () const { return m_path_tempdir; }
  55   const char * get_path_c_file () const { return m_path_c_file; }
  56   const char * get_path_s_file () const { return m_path_s_file; }
  57   const char * get_path_so_file () const { return m_path_so_file; }
  58
  59  private:
  60   /* Was GCC_JIT_BOOL_OPTION_KEEP_INTERMEDIATES set?  If so, keep the
  61      on-disk tempdir around after this wrapper object goes away.  */
  62   int m_keep_intermediates;
  63
  64   /* Allocated using xmalloc (by xstrdup).  */
  65   char *m_path_template;
  66
  67   /* This either aliases m_path_template, or is NULL.  */
  68   char *m_path_tempdir;
  69
  70   /* The following are allocated using xmalloc.  */
  71   char *m_path_c_file;
  72   char *m_path_s_file;
  73   char *m_path_so_file;
  74
  75 };
  76
  77 } // namespace gcc::jit
  78
  79 } // namespace gcc
  80
  81 #endif /* JIT_TEMPDIR_H */