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/* -*- Mode: C; tab-width: 8; indent-tabs-mode: t; c-basic-offset: 8 -*- */
/*
* soup-session-sync.c
*
* Copyright (C) 2000-2003, Ximian, Inc.
*/
#ifdef HAVE_CONFIG_H
#include <config.h>
#endif
#include "soup-session-sync.h"
#include "soup.h"
#include "soup-session-private.h"
#include "soup-message-private.h"
#include "soup-message-queue.h"
/**
* SECTION:soup-session-sync
* @short_description: Soup session for blocking I/O in multithreaded
* programs.
*
* #SoupSessionSync is an implementation of #SoupSession that uses
* synchronous I/O, intended for use in multi-threaded programs.
*
* You can use #SoupSessionSync from multiple threads concurrently.
* Eg, you can send a #SoupMessage in one thread, and then while
* waiting for the response, send another #SoupMessage from another
* thread. You can also send a message from one thread and then call
* soup_session_cancel_message() on it from any other thread (although
* you need to be careful to avoid race conditions, where the message
* finishes and is then unreffed by the sending thread just before you
* cancel it).
*
* However, the majority of other types and methods in libsoup are not
* MT-safe. In particular, you <emphasis>cannot</emphasis> modify or
* examine a #SoupMessage while it is being transmitted by
* #SoupSessionSync in another thread. Once a message has been handed
* off to #SoupSessionSync, it can only be manipulated from its signal
* handler callbacks, until I/O is complete.
**/
G_DEFINE_TYPE (SoupSessionSync, soup_session_sync, SOUP_TYPE_SESSION)
static void
soup_session_sync_init (SoupSessionSync *ss)
{
}
/**
* soup_session_sync_new:
*
* Creates an synchronous #SoupSession with the default options.
*
* Return value: the new session.
**/
SoupSession *
soup_session_sync_new (void)
{
return g_object_new (SOUP_TYPE_SESSION_SYNC, NULL);
}
/**
* soup_session_sync_new_with_options:
* @optname1: name of first property to set
* @...: value of @optname1, followed by additional property/value pairs
*
* Creates an synchronous #SoupSession with the specified options.
*
* Return value: the new session.
**/
SoupSession *
soup_session_sync_new_with_options (const char *optname1, ...)
{
SoupSession *session;
va_list ap;
va_start (ap, optname1);
session = (SoupSession *)g_object_new_valist (SOUP_TYPE_SESSION_SYNC,
optname1, ap);
va_end (ap);
return session;
}
static gboolean
queue_message_callback (gpointer data)
{
SoupMessageQueueItem *item = data;
item->callback (item->session, item->msg, item->callback_data);
soup_message_queue_item_unref (item);
return FALSE;
}
static gpointer
queue_message_thread (gpointer data)
{
SoupMessageQueueItem *item = data;
soup_session_process_queue_item (item->session, item, NULL, TRUE);
if (item->callback) {
soup_add_completion (soup_session_get_async_context (item->session),
queue_message_callback, item);
} else
soup_message_queue_item_unref (item);
return NULL;
}
static void
soup_session_sync_queue_message (SoupSession *session, SoupMessage *msg,
SoupSessionCallback callback, gpointer user_data)
{
SoupMessageQueueItem *item;
GThread *thread;
item = soup_session_append_queue_item (session, msg, FALSE, FALSE,
callback, user_data);
thread = g_thread_new ("SoupSessionSync:queue_message",
queue_message_thread, item);
g_thread_unref (thread);
}
static guint
soup_session_sync_send_message (SoupSession *session, SoupMessage *msg)
{
SoupMessageQueueItem *item;
guint status;
item = soup_session_append_queue_item (session, msg, FALSE, FALSE,
NULL, NULL);
soup_session_process_queue_item (session, item, NULL, TRUE);
status = msg->status_code;
soup_message_queue_item_unref (item);
return status;
}
static void
soup_session_sync_class_init (SoupSessionSyncClass *session_sync_class)
{
SoupSessionClass *session_class = SOUP_SESSION_CLASS (session_sync_class);
/* virtual method override */
session_class->queue_message = soup_session_sync_queue_message;
session_class->send_message = soup_session_sync_send_message;
}
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