pidgin/gtkeventloop.c

   1 /**
   2  * @file gtk_eventloop.c Purple Event Loop API (gtk implementation)
   3  * @ingroup pidgin
   4  */
   5
   6 /* pidgin
   7  *
   8  * Pidgin is the legal property of its developers, whose names are too numerous
   9  * to list here.  Please refer to the COPYRIGHT file distributed with this
  10  * source distribution.
  11  *
  12  * This program is free software; you can redistribute it and/or modify
  13  * it under the terms of the GNU General Public License as published by
  14  * the Free Software Foundation; either version 2 of the License, or
  15  * (at your option) any later version.
  16  *
  17  * This program is distributed in the hope that it will be useful,
  18  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  19  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  20  * GNU General Public License for more details.
  21  *
  22  * You should have received a copy of the GNU General Public License
  23  * along with this program; if not, write to the Free Software
  24  * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02111-1301  USA
  25  */
  26
  27 #include <glib.h>
  28 #include "gtkeventloop.h"
  29 #include "eventloop.h"
  30 #ifdef _WIN32
  31 #include "win32dep.h"
  32 #endif
  33
  34 #define PIDGIN_READ_COND  (G_IO_IN | G_IO_HUP | G_IO_ERR)
  35 #define PIDGIN_WRITE_COND (G_IO_OUT | G_IO_HUP | G_IO_ERR | G_IO_NVAL)
  36
  37 typedef struct _PidginIOClosure {
  38         PurpleInputFunction function;
  39         guint result;
  40         gpointer data;
  41
  42 } PidginIOClosure;
  43
  44 static gboolean pidgin_io_invoke(GIOChannel *source, GIOCondition condition, gpointer data)
  45 {
  46         PidginIOClosure *closure = data;
  47         PurpleInputCondition purple_cond = 0;
  48
  49         if (condition & PIDGIN_READ_COND)
  50                 purple_cond |= PURPLE_INPUT_READ;
  51         if (condition & PIDGIN_WRITE_COND)
  52                 purple_cond |= PURPLE_INPUT_WRITE;
  53
  54 #if 0
  55         purple_debug_misc("gtk_eventloop",
  56                            "CLOSURE: callback for %d, fd is %d\n",
  57                            closure->result, g_io_channel_unix_get_fd(source));
  58 #endif
  59
  60 #ifdef _WIN32
  61         if(! purple_cond) {
  62 #ifdef DEBUG
  63                 purple_debug_misc("gtk_eventloop",
  64                            "CLOSURE received GIOCondition of 0x%x, which does not"
  65                            " match 0x%x (READ) or 0x%x (WRITE)\n",
  66                            condition, PIDGIN_READ_COND, PIDGIN_WRITE_COND);
  67 #endif /* DEBUG */
  68
  69                 return TRUE;
  70         }
  71 #endif /* _WIN32 */
  72
  73         closure->function(closure->data, g_io_channel_unix_get_fd(source),
  74                           purple_cond);
  75
  76         return TRUE;
  77 }
  78
  79 static guint pidgin_input_add(gint fd, PurpleInputCondition condition, PurpleInputFunction function,
  80                                                            gpointer data)
  81 {
  82         PidginIOClosure *closure = g_new0(PidginIOClosure, 1);
  83         GIOChannel *channel;
  84         GIOCondition cond = 0;
  85 #ifdef _WIN32
  86         static int use_glib_io_channel = -1;
  87
  88         if (use_glib_io_channel == -1)
  89                 use_glib_io_channel = (g_getenv("PIDGIN_GLIB_IO_CHANNEL") != NULL) ? 1 : 0;
  90 #endif
  91
  92         closure->function = function;
  93         closure->data = data;
  94
  95         if (condition & PURPLE_INPUT_READ)
  96                 cond |= PIDGIN_READ_COND;
  97         if (condition & PURPLE_INPUT_WRITE)
  98                 cond |= PIDGIN_WRITE_COND;
  99
 100 #ifdef _WIN32
 101         if (use_glib_io_channel == 0)
 102                 channel = wpurple_g_io_channel_win32_new_socket(fd);
 103         else
 104 #endif
 105         channel = g_io_channel_unix_new(fd);
 106
 107         closure->result = g_io_add_watch_full(channel, G_PRIORITY_DEFAULT, cond,
 108                                               pidgin_io_invoke, closure, g_free);
 109
 110 #if 0
 111         purple_debug_misc("gtk_eventloop",
 112                            "CLOSURE: adding input watcher %d for fd %d\n",
 113                            closure->result, fd);
 114 #endif
 115
 116         g_io_channel_unref(channel);
 117         return closure->result;
 118 }
 119
 120 static PurpleEventLoopUiOps eventloop_ops =
 121 {
 122         g_timeout_add,
 123         g_source_remove,
 124         pidgin_input_add,
 125         g_source_remove,
 126         NULL, /* input_get_error */
 127 #if GLIB_CHECK_VERSION(2,14,0)
 128         g_timeout_add_seconds,
 129 #else
 130         NULL,
 131 #endif
 132         NULL,
 133         NULL,
 134         NULL
 135 };
 136
 137 PurpleEventLoopUiOps *
 138 pidgin_eventloop_get_ui_ops(void)
 139 {
 140         return &eventloop_ops;
 141 }