/* -*- Mode: C; tab-width: 8; indent-tabs-mode: t; c-basic-offset: 8 -*- */
/* camel-folder-pt-proxy.c : proxy folder using posix threads */
/*
*
* Copyright (C) 1999 Bertrand Guiheneuf <Bertrand.Guiheneuf@aful.org> .
*
* 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., 59 Temple Place, Suite 330, Boston, MA 02111-1307
* USA
*/
/* FIXME :
*
* the current implementation lauches requests
* on the real folder without bothering on wether
* the global mutex (folder->mutex) is locked or
* not.
* This means that you could have 100 threads
* waiting for the mutex at the same time.
* This is not really a bug, more a nasty feature ;)
*
* This will be solved when the CORBA proxy is
* written, as we will need to queue the requests
* on the client side. The same queue mechanism
* will be used for the pthread proxy
*
*/
#include <config.h>
#include "camel-folder-pt-proxy.h"
#include "camel-log.h"
#include <pthread.h>
#include <unistd.h>
#include <string.h>
#include <errno.h>
/* needed for proper casts of async funcs when
* calling pthreads_create
*/
typedef void * (*thread_call_func) (void *);
static CamelFolderClass *parent_class=NULL;
/* Returns the class for CamelFolderPtProxy and CamelFolder objects */
#define CFPP_CLASS(so) CAMEL_FOLDER_PT_PROXY_CLASS (GTK_OBJECT(so)->klass)
#define CF_CLASS(so) CAMEL_FOLDER_CLASS (GTK_OBJECT(so)->klass)
static void _init_with_store (CamelFolder *folder, CamelStore *parent_store);
static void _open (CamelFolder *folder, CamelFolderOpenMode mode);
static void _close (CamelFolder *folder, gboolean expunge);
static void _set_name (CamelFolder *folder, const gchar *name);
static const gchar *_get_name (CamelFolder *folder);
static const gchar *_get_full_name (CamelFolder *folder);
static gboolean _can_hold_folders (CamelFolder *folder);
static gboolean _can_hold_messages(CamelFolder *folder);
static gboolean _exists (CamelFolder *folder);
static gboolean _is_open (CamelFolder *folder);
static CamelFolder *_get_folder (CamelFolder *folder, const gchar *folder_name);
static gboolean _create (CamelFolder *folder);
static gboolean _delete (CamelFolder *folder, gboolean recurse);
static gboolean _delete_messages (CamelFolder *folder);
static CamelFolder *_get_parent_folder (CamelFolder *folder);
static CamelStore *_get_parent_store (CamelFolder *folder);
static CamelFolderOpenMode _get_mode (CamelFolder *folder);
static GList *_list_subfolders (CamelFolder *folder);
static void _expunge (CamelFolder *folder);
static CamelMimeMessage *_get_message (CamelFolder *folder, gint number);
static gint _get_message_count (CamelFolder *folder);
static gint _append_message (CamelFolder *folder, CamelMimeMessage *message);
static const GList *_list_permanent_flags (CamelFolder *folder);
static void _copy_message_to (CamelFolder *folder, CamelMimeMessage *message, CamelFolder *dest_folder);
static const gchar *_get_message_uid (CamelFolder *folder, CamelMimeMessage *message);
static CamelMimeMessage *_get_message_by_uid (CamelFolder *folder, const gchar *uid);
static GList *_get_uid_list (CamelFolder *folder);
static void _finalize (GtkObject *object);
static void
camel_folder_proxy_class_init (CamelFolderPtProxyClass *camel_folder_pt_proxy_class)
{
GtkObjectClass *gtk_object_class = GTK_OBJECT_CLASS (camel_folder_pt_proxy_class);
CamelFolderClass *camel_folder_class = CAMEL_FOLDER_CLASS (camel_folder_pt_proxy_class);
parent_class = gtk_type_class (camel_folder_get_type ());
/* virtual method definition */
camel_folder_class->init_with_store = _init_with_store;
camel_folder_class->open = _open;
camel_folder_class->close = _close;
camel_folder_class->set_name = _set_name;
camel_folder_class->get_name = _get_name;
camel_folder_class->can_hold_folders = _can_hold_folders;
camel_folder_class->can_hold_messages = _can_hold_messages;
camel_folder_class->exists = _exists;
camel_folder_class->is_open = _is_open;
camel_folder_class->get_folder = _get_folder;
camel_folder_class->create = _create;
camel_folder_class->delete = _delete;
camel_folder_class->delete_messages = _delete_messages;
camel_folder_class->get_parent_folder = _get_parent_folder;
camel_folder_class->get_parent_store = _get_parent_store;
camel_folder_class->get_mode = _get_mode;
camel_folder_class->list_subfolders = _list_subfolders;
camel_folder_class->expunge = _expunge;
camel_folder_class->get_message = _get_message;
camel_folder_class->get_message_count = _get_message_count;
camel_folder_class->append_message = _append_message;
camel_folder_class->list_permanent_flags = _list_permanent_flags;
camel_folder_class->copy_message_to;
camel_folder_class->get_message_uid = _get_message_uid;
camel_folder_class->get_message_by_uid = _get_message_by_uid;
camel_folder_class->get_uid_list = _get_uid_list;
/* virtual method overload */
gtk_object_class->finalize = _finalize;
}
static void
camel_folder_proxy_init (CamelFolderPtProxy *folder_pt_proxy)
{
folder_pt_proxy->op_queue = camel_op_queue_new ();
}
GtkType
camel_folder_proxy_get_type (void)
{
static GtkType camel_folder_pt_proxy_type = 0;
if (!camel_folder_pt_proxy_type) {
GtkTypeInfo camel_folder_pt_proxy_info =
{
"CamelFolderPtProxy",
sizeof (CamelFolderPtProxy),
sizeof (CamelFolderPtProxyClass),
(GtkClassInitFunc) camel_folder_proxy_class_init,
(GtkObjectInitFunc) camel_folder_proxy_init,
/* reserved_1 */ NULL,
/* reserved_2 */ NULL,
(GtkClassInitFunc) NULL,
};
camel_folder_pt_proxy_type = gtk_type_unique (gtk_object_get_type (), &camel_folder_pt_proxy_info);
}
return camel_folder_pt_proxy_type;
}
static void
_finalize (GtkObject *object)
{
CamelFolder *camel_folder = CAMEL_FOLDER (object);
GList *message_node;
CAMEL_LOG_FULL_DEBUG ("Entering CamelFolderPtProxy::finalize\n");
GTK_OBJECT_CLASS (parent_class)->finalize (object);
CAMEL_LOG_FULL_DEBUG ("Leaving CamelFolderPtProxy::finalize\n");
}
static void
_op_exec_or_plan_for_exec (CamelFolderPtProxy *proxy_folder, CamelOp *op)
{
CamelOpQueue *op_queue;
pthread_t thread;
op_queue = proxy_folder->op_queue;
if (camel_op_queue_get_service_availability (op_queue)) {
camel_op_queue_set_service_availability (op_queue, FALSE);
pthread_create (&thread, NULL , (thread_call_func)(op->func), op->param);
camel_op_free (op);
} else {
camel_op_queue_push_op (op_queue, op);
}
}
/* folder->init_with_store implementation */
typedef struct {
CamelFolder *folder;
CamelStore *parent_store;
} _InitStoreParam;
static void
_async_init_with_store (_InitStoreParam *param)
{
CamelFolder *folder = param->folder;
CamelFolderPtProxy *proxy_folder;
CamelFolder *real_folder;
proxy_folder = CAMEL_FOLDER_PT_PROXY (folder);
real_folder = proxy_folder->real_folder;
/* we may block here but we are actually in a
* separate thread, so no problem
*/
g_static_mutex_lock (&(proxy_folder->mutex));
CF_CLASS (real_folder)->init_with_store (real_folder, param->parent_store);
g_free (param);
g_static_mutex_unlock (&(proxy_folder->mutex));
}
static void
_init_with_store (CamelFolder *folder, CamelStore *parent_store)
{
CamelFolderPtProxy *proxy_folder = CAMEL_FOLDER_PT_PROXY (folder);
_InitStoreParam *param;
pthread_t init_store_thread;
int filedes[2];
CamelOp *op;
#warning Notify io_channel initialization should be elsewhere
/* it can not be in camel_folder_proxy_init
* because of the pipe error handling */
/* set up the notification channel */
if (!pipe (filedes)) {
CAMEL_LOG_WARNING ("could not create pipe in for camel_folder_proxy_init");
CAMEL_LOG_FULL_DEBUG ("Full error message : %s\n", strerror(errno));
return;
}
proxy_folder->pipe_client_fd = filedes [0];
proxy_folder->pipe_server_fd = filedes [1];
proxy_folder->notify_source = g_io_channel_unix_new (filedes [0]);
op = camel_op_new ();
/* param will be freed in _async_init_with_store */
param = g_new (_InitStoreParam, 1);
param->folder = folder;
param->parent_store = parent_store;
op->func = _async_init_with_store;
op->param = param;
}
/* folder->open implementation */
typedef struct {
CamelFolder *folder;
CamelFolderOpenMode mode;
} _openFolderParam;
static void
_open (CamelFolder *folder, CamelFolderOpenMode mode)
{
}
static void
_close (CamelFolder *folder, gboolean expunge)
{
if (expunge) camel_folder_expunge (folder, FALSE);
folder->open_state = FOLDER_CLOSE;
}
static void
_set_name (CamelFolder *folder, const gchar *name)
{
}
static const gchar *
_get_name (CamelFolder *folder)
{
return folder->name;
}
static const gchar *
_get_full_name (CamelFolder *folder)
{
return folder->full_name;
}
static gboolean
_can_hold_folders (CamelFolder *folder)
{
return folder->can_hold_folders;
}
static gboolean
_can_hold_messages (CamelFolder *folder)
{
return folder->can_hold_messages;
}
static gboolean
_exists (CamelFolder *folder)
{
return FALSE;
}
static gboolean
_is_open (CamelFolder *folder)
{
return (folder->open_state == FOLDER_OPEN);
}
static CamelFolder *
_get_folder (CamelFolder *folder, const gchar *folder_name)
{
return NULL;
}
static gboolean
_create(CamelFolder *folder)
{
return FALSE;
}
static gboolean
_delete (CamelFolder *folder, gboolean recurse)
{
return FALSE;
}
static gboolean
_delete_messages (CamelFolder *folder)
{
return TRUE;
}
static CamelFolder *
_get_parent_folder (CamelFolder *folder)
{
return folder->parent_folder;
}
static CamelStore *
_get_parent_store (CamelFolder *folder)
{
return folder->parent_store;
}
static CamelFolderOpenMode
_get_mode (CamelFolder *folder)
{
return folder->open_mode;
}
static GList *
_list_subfolders (CamelFolder *folder)
{
return NULL;
}
static void
_expunge (CamelFolder *folder)
{
}
static CamelMimeMessage *
_get_message (CamelFolder *folder, gint number)
{
return NULL;
}
static gint
_get_message_count (CamelFolder *folder)
{
return -1;
}
static gint
_append_message (CamelFolder *folder, CamelMimeMessage *message)
{
return -1;
}
static const GList *
_list_permanent_flags (CamelFolder *folder)
{
return folder->permanent_flags;
}
static void
_copy_message_to (CamelFolder *folder, CamelMimeMessage *message, CamelFolder *dest_folder)
{
camel_folder_append_message (dest_folder, message);
}
/* UIDs stuff */
static const gchar *
_get_message_uid (CamelFolder *folder, CamelMimeMessage *message)
{
return NULL;
}
/* the next two func are left there temporarily */
static const gchar *
_get_message_uid_by_number (CamelFolder *folder, gint message_number)
{
return NULL;
}
static CamelMimeMessage *
_get_message_by_uid (CamelFolder *folder, const gchar *uid)
{
return NULL;
}
static GList *
_get_uid_list (CamelFolder *folder)
{
return NULL;
}
/* **** */
