Hello, today as a first step, I've tried to port the libpurple example
"nullclient.c" to make it use the ecore_loop instead of the GMainLoop.
To get this, I had mostly to write the wrapper functions needed to
populate the PurpleEventLoopUiOps struct.
Thanks to the ecore_timer* and the ecore_main_fd* functions all this was
quite easy, and you can see my result looking at the nullclient-ecore.c
attached file.
Unfortunately testing it with the msn-purple plugin (I've tried also
with Facebook, but I've some issues with the certs) the test client
attached segfaults. As you can easily try (but I could attach also some
logs, if you need) the client runs correctly and initializes the
connection, however after getting and sending some data (wireshark
confirms it too :P), it crashes. :(
Using the standard connection mode with gdb I get this:
> (01:42:42) dns: DNS query for 'login.live.com' queued
> (01:42:42) dns: Successfully sent DNS request to child 2317
> (01:42:43) dns: Got response for '(null)'
>
> Program received signal SIGSEGV, Segmentation fault.
> [Switching to Thread -1214175024 (LWP 2314)]
> 0xb7ef469d in host_resolved (data=0x80ade50, source=12,
> cond=PURPLE_INPUT_READ)
> at dnsquery.c:558
> 558 purple_input_remove(query_data->resolver->inpa);
> (gdb) dns[2317]: nobody needs me... =(
While using the Http mode (in the case of msn) I get this:
> (01:44:38) certificate: Successfully verified certificate for login.live.com
> (01:44:39) soap: Sending secure request.
>
> Program received signal SIGSEGV, Segmentation fault.
> [Switching to Thread -1213843248 (LWP 2330)]
> 0xb7685386 in msn_soap_write_cb_internal (data=0x80adf10, fd=<value optimized
> out>,
> cond=<value optimized out>, initial=0) at soap.c:546
> 546 written = purple_ssl_write(conn->ssl, conn->buf->str +
> conn->handled_len,
However I figure that they depends on the same issue, but from my
knowledges I can't really understand where I'm wrong :(.
Do you have any idea why is this not working as expected?
Thanks.
--
Treviño's World - Life and Linux
http://www.3v1n0.net/
/*
* nullclient-ecore.c - an ecore libpurple wrapper test.
* Copyright (C) 2009, Marco Trevisan (Treviño) <m...@3v1n0.net>
*
* Pidgin 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 "purple.h"
#include <Ecore.h>
#include <eina_list.h>
#include <signal.h>
#include <string.h>
#include <unistd.h>
// Client related settings
#define CUSTOM_USER_DIRECTORY "/dev/null"
#define CUSTOM_PLUGIN_PATH ""
#define PLUGIN_SAVE_PREF "/purple/nullclient/plugins/saved"
#define UI_ID "nullclient"
/*** Event uiops ***/
static guint loopID = 0;
Eina_List *loopsList = NULL;
typedef struct _timerRef {
Ecore_Timer *timer;
guint id;
} timerRef;
typedef struct _fdRef {
PurpleInputFunction function;
Ecore_Fd_Handler_Flags condition;
Ecore_Fd_Handler *fdh;
guint id;
void *data;
} fdRef;
static guint ecore_purple_timeout_add(guint interval, GSourceFunc function, gpointer data) {
timerRef *ref = calloc(1, sizeof(timerRef));
double timer_interval = ((double) interval)/1000;
ref->timer = ecore_timer_add(timer_interval, function, data);
ref->id = ++loopID;
loopsList = eina_list_append(loopsList, ref);
return ref->id;
}
static gboolean ecore_purple_timeout_remove(guint handle) {
timerRef *ref;
Eina_List *tlist;
EINA_LIST_FOREACH(loopsList, tlist, ref) {
if (ref->id == handle) {
ecore_timer_del(ref->timer);
loopsList = eina_list_remove(loopsList, ref);
free(ref);
return TRUE;
}
}
return FALSE;
}
static int ecore_purple_input_cb(void *data, Ecore_Fd_Handler *fd_handler) {
fdRef *ref = data;
PurpleInputCondition purple_cond = 0;
if (ref->condition & ECORE_FD_READ)
purple_cond |= PURPLE_INPUT_READ;
if (ref->condition & ECORE_FD_WRITE)
purple_cond |= PURPLE_INPUT_WRITE;
if (ref->function && ecore_main_fd_handler_active_get(fd_handler, ref->condition)) {
ref->function(ref->data, ecore_main_fd_handler_fd_get(fd_handler), purple_cond);
return 1;
} else
return 0;
}
static guint ecore_purple_input_add(int fd, PurpleInputCondition condition,
PurpleInputFunction func, gpointer user_data) {
fdRef *ref = calloc(1, sizeof(fdRef));
if (fd < 0)
return ++loopID;
ref->condition = 0;
if (condition & PURPLE_INPUT_READ)
ref->condition |= ECORE_FD_READ;
if (condition & PURPLE_INPUT_WRITE)
ref->condition |= ECORE_FD_WRITE;
ref->id = ++loopID;
ref->data = user_data;
ref->function = func;
ref->fdh = ecore_main_fd_handler_add(fd, ref->condition, ecore_purple_input_cb, ref, NULL, NULL);
loopsList = eina_list_append(loopsList, ref);
return ref->id;
}
static gboolean ecore_purple_input_remove(guint handle) {
fdRef *ref;
Eina_List *tlist;
EINA_LIST_FOREACH(loopsList, tlist, ref) {
if (ref->id == handle) {
if (ref->fdh)
ecore_main_fd_handler_del(ref->fdh);
loopsList = eina_list_remove(loopsList, ref);
free(ref);
return TRUE;
}
}
return FALSE;
}
static PurpleEventLoopUiOps ecore_eventloops =
{
ecore_purple_timeout_add,
ecore_purple_timeout_remove,
ecore_purple_input_add,
ecore_purple_input_remove,
NULL,
NULL,
NULL,
NULL,
NULL
};
/*** End of the eventloop functions. ***/
/*** Conversation uiops ***/
static void
null_write_conv(PurpleConversation *conv, const char *who, const char *alias,
const char *message, PurpleMessageFlags flags, time_t mtime)
{
const char *name;
if (alias && *alias)
name = alias;
else if (who && *who)
name = who;
else
name = NULL;
printf("(%s) %s %s: %s\n", purple_conversation_get_name(conv),
purple_utf8_strftime("(%H:%M:%S)", localtime(&mtime)),
name, message);
}
static PurpleConversationUiOps null_conv_uiops =
{
NULL, /* create_conversation */
NULL, /* destroy_conversation */
NULL, /* write_chat */
NULL, /* write_im */
null_write_conv, /* write_conv */
NULL, /* chat_add_users */
NULL, /* chat_rename_user */
NULL, /* chat_remove_users */
NULL, /* chat_update_user */
NULL, /* present */
NULL, /* has_focus */
NULL, /* custom_smiley_add */
NULL, /* custom_smiley_write */
NULL, /* custom_smiley_close */
NULL, /* send_confirm */
NULL,
NULL,
NULL,
NULL
};
static void
null_ui_init(void)
{
/**
* This should initialize the UI components for all the modules. Here we
* just initialize the UI for conversations.
*/
purple_conversations_set_ui_ops(&null_conv_uiops);
}
static PurpleCoreUiOps null_core_uiops =
{
NULL,
NULL,
null_ui_init,
NULL,
NULL,
NULL,
NULL,
NULL
};
static void
init_libpurple(void)
{
/* Set a custom user directory (optional) */
purple_util_set_user_dir(CUSTOM_USER_DIRECTORY);
/* We do not want any debugging for now to keep the noise to a minimum. */
purple_debug_set_enabled(TRUE);
/* Set the core-uiops, which is used to
* - initialize the ui specific preferences.
* - initialize the debug ui.
* - initialize the ui components for all the modules.
* - uninitialize the ui components for all the modules when the core terminates.
*/
purple_core_set_ui_ops(&null_core_uiops);
/* Set the uiops for the eventloop. */
purple_eventloop_set_ui_ops(&ecore_eventloops);
/* Set path to search for plugins. The core (libpurple) takes care of loading the
* core-plugins, which includes the protocol-plugins. So it is not essential to add
* any path here, but it might be desired, especially for ui-specific plugins. */
purple_plugins_add_search_path(CUSTOM_PLUGIN_PATH);
/* Now that all the essential stuff has been set, let's try to init the core. It's
* necessary to provide a non-NULL name for the current ui to the core. This name
* is used by stuff that depends on this ui, for example the ui-specific plugins. */
if (!purple_core_init(UI_ID)) {
/* Initializing the core failed. Terminate. */
fprintf(stderr,
"libpurple initialization failed. Dumping core.\n"
"Please report this!\n");
abort();
}
/* Create and load the buddylist. */
purple_set_blist(purple_blist_new());
purple_blist_load();
/* Load the preferences. */
purple_prefs_load();
/* Load the desired plugins. The client should save the list of loaded plugins in
* the preferences using purple_plugins_save_loaded(PLUGIN_SAVE_PREF) */
purple_plugins_load_saved(PLUGIN_SAVE_PREF);
/* Load the pounces. */
purple_pounces_load();
}
static void
signed_on(PurpleConnection *gc, gpointer null)
{
PurpleBlistNode *node;
PurpleAccount *account = purple_connection_get_account(gc);
printf("Account connected: %s %s\n", account->username, account->protocol_id);
for (node = purple_blist_get_root(); node;
node = purple_blist_node_next(node, FALSE)) {
if (node)
printf("Contact: %s\n", node);
}
}
static void
connect_to_signals_for_demonstration_purposes_only(void)
{
static int handle;
purple_signal_connect(purple_connections_get_handle(), "signed-on", &handle,
PURPLE_CALLBACK(signed_on), NULL);
}
int main(int argc, char *argv[])
{
const char *prpl;
char name[128];
char *password;
PurpleAccount *account;
PurpleSavedStatus *status;
char *res;
/* libpurple's built-in DNS resolution forks processes to perform
* blocking lookups without blocking the main process. It does not
* handle SIGCHLD itself, so if the UI does not you quickly get an army
* of zombie subprocesses marching around.
*/
signal(SIGCHLD, SIG_IGN);
ecore_init();
eina_list_init();
init_libpurple();
printf("libpurple initialized.\n");
int i, num;
GList *iter;
Eina_List *names = NULL;
iter = purple_plugins_get_protocols();
for (i = 0; iter; iter = iter->next) {
PurplePlugin *plugin = iter->data;
PurplePluginInfo *info = plugin->info;
if (info && info->name) {
printf("\t%d: %s\n", i++, info->name);
names = eina_list_append(names, info->id);
}
}
printf("Select the protocol [0-%d]: ", i-1);
res = fgets(name, sizeof(name), stdin);
if (!res) {
fprintf(stderr, "Failed to gets protocol selection.");
abort();
}
sscanf(name, "%d", &num);
prpl = eina_list_nth(names, num);
printf("Username: ");
res = fgets(name, sizeof(name), stdin);
if (!res) {
fprintf(stderr, "Failed to read user name.");
abort();
}
name[strlen(name) - 1] = 0; /* strip the \n at the end */
/* Create the account */
account = purple_account_new(name, prpl);
/* Get the password for the account */
password = getpass("Password: ");
purple_account_set_password(account, password);
/* It's necessary to enable the account first. */
purple_account_set_enabled(account, UI_ID, TRUE);
/* Now, to connect the account(s), create a status and activate it. */
status = purple_savedstatus_new(NULL, PURPLE_STATUS_INVISIBLE);
purple_savedstatus_activate(status);
connect_to_signals_for_demonstration_purposes_only();
ecore_main_loop_begin();
ecore_main_loop_quit();
eina_list_shutdown();
return 0;
}
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