gspawn.h

   1 /* gspawn.h - Process launching
   2  *
   3  *  Copyright 2000 Red Hat, Inc.
   4  *
   5  * GLib is free software; you can redistribute it and/or
   6  * modify it under the terms of the GNU Lesser General Public License as
   7  * published by the Free Software Foundation; either version 2 of the
   8  * License, or (at your option) any later version.
   9  *
  10  * GLib is distributed in the hope that it will be useful,
  11  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  12  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  13  * Lesser General Public License for more details.
  14  *
  15  * You should have received a copy of the GNU Lesser General Public
  16  * License along with GLib; see the file COPYING.LIB.  If not, write
  17  * to the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
  18  * Boston, MA 02111-1307, USA.
  19  */
  20
  21 #ifndef __G_SPAWN_H__
  22 #define __G_SPAWN_H__
  23
  24 #include <gerror.h>
  25
  26 G_BEGIN_DECLS
  27
  28 /* I'm not sure I remember our proposed naming convention here. */
  29 #define G_SPAWN_ERROR g_spawn_error_quark ()
  30
  31 typedef enum
  32 {
  33   G_SPAWN_ERROR_FORK,   /* fork failed due to lack of memory */
  34   G_SPAWN_ERROR_READ,   /* read or select on pipes failed */
  35   G_SPAWN_ERROR_CHDIR,  /* changing to working dir failed */
  36   G_SPAWN_ERROR_ACCES,  /* execv() returned EACCES */
  37   G_SPAWN_ERROR_PERM,   /* execv() returned EPERM */
  38   G_SPAWN_ERROR_2BIG,   /* execv() returned E2BIG */
  39   G_SPAWN_ERROR_NOEXEC, /* execv() returned ENOEXEC */
  40   G_SPAWN_ERROR_NAMETOOLONG, /* ""  "" ENAMETOOLONG */
  41   G_SPAWN_ERROR_NOENT,       /* ""  "" ENOENT */
  42   G_SPAWN_ERROR_NOMEM,       /* ""  "" ENOMEM */
  43   G_SPAWN_ERROR_NOTDIR,      /* ""  "" ENOTDIR */
  44   G_SPAWN_ERROR_LOOP,        /* ""  "" ELOOP   */
  45   G_SPAWN_ERROR_TXTBUSY,     /* ""  "" ETXTBUSY */
  46   G_SPAWN_ERROR_IO,          /* ""  "" EIO */
  47   G_SPAWN_ERROR_NFILE,       /* ""  "" ENFILE */
  48   G_SPAWN_ERROR_MFILE,       /* ""  "" EMFLE */
  49   G_SPAWN_ERROR_INVAL,       /* ""  "" EINVAL */
  50   G_SPAWN_ERROR_ISDIR,       /* ""  "" EISDIR */
  51   G_SPAWN_ERROR_LIBBAD,      /* ""  "" ELIBBAD */
  52   G_SPAWN_ERROR_FAILED       /* other fatal failure, error->message
  53                               * should explain
  54                               */
  55 } GSpawnError;
  56
  57 typedef void (* GSpawnChildSetupFunc) (gpointer user_data);
  58
  59 typedef enum
  60 {
  61   G_SPAWN_LEAVE_DESCRIPTORS_OPEN = 1 << 0,
  62   G_SPAWN_DO_NOT_REAP_CHILD = 1 << 1,
  63   /* look for argv[0] in the path i.e. use execvp() */
  64   G_SPAWN_SEARCH_PATH = 1 << 2,
  65   /* Dump output to /dev/null */
  66   G_SPAWN_STDOUT_TO_DEV_NULL = 1 << 3,
  67   G_SPAWN_STDERR_TO_DEV_NULL = 1 << 4,
  68   G_SPAWN_CHILD_INHERITS_STDIN = 1 << 5
  69 } GSpawnFlags;
  70
  71 GQuark g_spawn_error_quark (void);
  72
  73 gboolean g_spawn_async (const gchar           *working_directory,
  74                         gchar                **argv,
  75                         gchar                **envp,
  76                         GSpawnFlags            flags,
  77                         GSpawnChildSetupFunc   child_setup,
  78                         gpointer               user_data,
  79                         gint                  *child_pid,
  80                         GError               **error);
  81
  82
  83 /* Opens pipes for non-NULL standard_output, standard_input, standard_error,
  84  * and returns the parent's end of the pipes.
  85  */
  86 gboolean g_spawn_async_with_pipes (const gchar          *working_directory,
  87                                    gchar               **argv,
  88                                    gchar               **envp,
  89                                    GSpawnFlags           flags,
  90                                    GSpawnChildSetupFunc  child_setup,
  91                                    gpointer              user_data,
  92                                    gint                 *child_pid,
  93                                    gint                 *standard_input,
  94                                    gint                 *standard_output,
  95                                    gint                 *standard_error,
  96                                    GError              **error);
  97
  98
  99 /* If standard_output or standard_error are non-NULL, the full
 100  * standard output or error of the command will be placed there.
 101  */
 102
 103 gboolean g_spawn_sync         (const gchar          *working_directory,
 104                                gchar               **argv,
 105                                gchar               **envp,
 106                                GSpawnFlags           flags,
 107                                GSpawnChildSetupFunc  child_setup,
 108                                gpointer              user_data,
 109                                gchar               **standard_output,
 110                                gchar               **standard_error,
 111                                gint                 *exit_status,
 112                                GError              **error);
 113
 114 gboolean g_spawn_command_line_sync  (const gchar          *command_line,
 115                                      gchar               **standard_output,
 116                                      gchar               **standard_error,
 117                                      gint                 *exit_status,
 118                                      GError              **error);
 119 gboolean g_spawn_command_line_async (const gchar          *command_line,
 120                                      GError              **error);
 121
 122
 123 G_END_DECLS
 124
 125 #endif /* __G_SPAWN_H__ */
 126
 127