pidgin/pidgin

Fix building on glib < 2.58.0 as we have a minimum of 2.52.0

2021-03-13, Gary Kramlich
3891ef6e3b56
Fix building on glib < 2.58.0 as we have a minimum of 2.52.0

Add compatibility for G_SOURCE_FUNC and g_time_zone_new_offset that were added in 2.58.0

g_time_zone_new_offset is from 2.58.0 which might be buggy, the version of it
from glib git has some fixes it but it is much more involved so using the older
version is a calculated risk.

Testing Done:
Built on ubuntu:bionic.

Reviewed at https://reviews.imfreedom.org/r/573/
/* purple
*
* Purple is the legal property of its developers, whose names are too numerous
* to list here. Please refer to the COPYRIGHT file distributed with this
* source distribution.
*
* This program 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 2 of the License, or
* (at your option) any later version.
*
* This program 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 this program; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02111-1301 USA
*/
#include "internal.h"
#include "eventloop.h"
#define PURPLE_GLIB_READ_COND (G_IO_IN | G_IO_HUP | G_IO_ERR)
#define PURPLE_GLIB_WRITE_COND (G_IO_OUT | G_IO_HUP | G_IO_ERR | G_IO_NVAL)
typedef struct {
PurpleInputFunction function;
guint result;
gpointer data;
} PurpleIOClosure;
static gboolean
purple_io_invoke(GIOChannel *source, GIOCondition condition, gpointer data)
{
PurpleIOClosure *closure = data;
PurpleInputCondition purple_cond = 0;
if (condition & PURPLE_GLIB_READ_COND)
purple_cond |= PURPLE_INPUT_READ;
if (condition & PURPLE_GLIB_WRITE_COND)
purple_cond |= PURPLE_INPUT_WRITE;
#ifdef _WIN32
if(!purple_cond) {
return TRUE;
}
#endif /* _WIN32 */
closure->function(closure->data, g_io_channel_unix_get_fd(source),
purple_cond);
return TRUE;
}
guint
purple_input_add(int source, PurpleInputCondition condition, PurpleInputFunction func, gpointer user_data)
{
PurpleIOClosure *closure = g_new0(PurpleIOClosure, 1);
GIOChannel *channel;
GIOCondition cond = 0;
closure->function = func;
closure->data = user_data;
if (condition & PURPLE_INPUT_READ)
cond |= PURPLE_GLIB_READ_COND;
if (condition & PURPLE_INPUT_WRITE)
cond |= PURPLE_GLIB_WRITE_COND;
#ifdef _WIN32
channel = g_io_channel_win32_new_socket(source);
#else
channel = g_io_channel_unix_new(source);
#endif
closure->result = g_io_add_watch_full(channel, G_PRIORITY_DEFAULT,
cond, purple_io_invoke, closure, g_free);
g_io_channel_unref(channel);
return closure->result;
}
gboolean
purple_input_remove(guint tag)
{
return g_source_remove(tag);
}
int
purple_input_pipe(int pipefd[2])
{
#ifdef _WIN32
return wpurple_input_pipe(pipefd);
#else
return pipe(pipefd);
#endif
}