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authorNot Zed <NotZed@Ximian.com>2003-09-18 05:19:04 +0800
committerMichael Zucci <zucchi@src.gnome.org>2003-09-18 05:19:04 +0800
commit81a0ff5bc44a3bd11399e6b3c985735737606c8c (patch)
tree54b5ed4342a6843c1db4c7e75f2e1b1fe9b82dff /mail/em-camel-stream.c
parenta36a1bb70b6ebcb51ac39304370c89bda63e11b9 (diff)
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cvs removed.
2003-09-17 Not Zed <NotZed@Ximian.com> * folder-browser.c, folder-browser.h, folder-browser-ui.c folder-browser-ui.h, mail-callbacks.c, mail-callbacks.h mail-display.c, mail-display.h, mail-display-stream.c mail-display-stream.h, mail-format.c, mail-format.h mail-identify.c, mail-search.c, mail-search.h message-browser.c, message-browser.h, subscribe-dialog.c subscribe-dialog.h, mail-font-prefs.c, mail-font-prefs.h: cvs removed. * Makefile.am: Removed mail-font-prefs.[ch], hasn't been built for ages. * em-*.c: killed a bunch of printfs. * em-format-html-display.c (efhd_html_button_press_event): update for html object api chagnes. ** Merge in mail-refactor-2 branch. svn path=/trunk/; revision=22602
Diffstat (limited to 'mail/em-camel-stream.c')
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diff --git a/mail/em-camel-stream.c b/mail/em-camel-stream.c
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+/* -*- Mode: C; tab-width: 8; indent-tabs-mode: t; c-basic-offset: 8 -*- */
+/*
+ * Authors: Jeffrey Stedfast <fejj@ximian.com>
+ * Michael Zucchi <notzed@ximian.com>
+ *
+ * Copyright 2001 Ximian, Inc. (www.ximian.com)
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of version 2 of the GNU General Public
+ * License as published by the Free Software Foundation.
+ *
+ * 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.
+ *
+ */
+
+
+#ifdef HAVE_CONFIG_H
+#include <config.h>
+#endif
+
+#include <string.h>
+#include <stdio.h>
+#include <camel/camel-stream.h>
+#include <camel/camel-object.h>
+#include <gtkhtml/gtkhtml.h>
+#include <gtkhtml/gtkhtml-stream.h>
+#include <gtk/gtkmain.h>
+#include "em-camel-stream.h"
+
+#include "mail-mt.h"
+
+#define EMCS_BUFFER_SIZE (4096)
+
+/*#define LOG_STREAM*/
+
+#define d(x)
+
+enum _write_msg_t {
+ EMCS_WRITE,
+ EMCS_FLUSH,
+ EMCS_CLOSE_OK,
+ EMCS_CLOSE_ERROR,
+};
+
+struct _write_msg {
+ EMsg msg;
+
+ enum _write_msg_t op;
+
+ const char *data;
+ size_t n;
+};
+
+static void em_camel_stream_class_init (EMCamelStreamClass *klass);
+static void em_camel_stream_init (CamelObject *object);
+static void em_camel_stream_finalize (CamelObject *object);
+
+static ssize_t stream_write(CamelStream *stream, const char *buffer, size_t n);
+static int stream_close(CamelStream *stream);
+static int stream_flush(CamelStream *stream);
+
+static CamelStreamClass *parent_class = NULL;
+
+CamelType
+em_camel_stream_get_type (void)
+{
+ static CamelType type = CAMEL_INVALID_TYPE;
+
+ if (type == CAMEL_INVALID_TYPE) {
+ type = camel_type_register (CAMEL_STREAM_TYPE,
+ "EMCamelStream",
+ sizeof (EMCamelStream),
+ sizeof (EMCamelStreamClass),
+ (CamelObjectClassInitFunc) em_camel_stream_class_init,
+ NULL,
+ (CamelObjectInitFunc) em_camel_stream_init,
+ (CamelObjectFinalizeFunc) em_camel_stream_finalize);
+ }
+
+ return type;
+}
+
+static void
+em_camel_stream_class_init (EMCamelStreamClass *klass)
+{
+ CamelStreamClass *stream_class = CAMEL_STREAM_CLASS (klass);
+
+ parent_class = (CamelStreamClass *) CAMEL_STREAM_TYPE;
+
+ /* virtual method overload */
+ stream_class->write = stream_write;
+ stream_class->flush = stream_flush;
+ stream_class->close = stream_close;
+}
+
+static gboolean
+emcs_gui_received(GIOChannel *source, GIOCondition cond, void *data)
+{
+ EMCamelStream *estream = data;
+ struct _write_msg *msg;
+
+ d(printf("%p: gui sync op job waiting\n", estream));
+
+ msg = (struct _write_msg *)e_msgport_get(estream->data_port);
+ /* Should never happen ... */
+ if (msg == NULL)
+ return TRUE;
+
+ d(printf("%p: running sync op %d\n", estream, msg->op));
+
+ /* force out any pending data before doing anything else */
+ if (estream->used > 0) {
+ d(printf("sync write %d\n", estream->used));
+
+ if (estream->html_stream)
+ gtk_html_stream_write(estream->html_stream, estream->buffer, estream->used);
+ estream->used = 0;
+ }
+
+ switch (msg->op) {
+ case EMCS_WRITE:
+ d(printf("sync write %d\n", msg->n));
+ if (estream->html_stream)
+ gtk_html_stream_write(estream->html_stream, msg->data, msg->n);
+ break;
+ case EMCS_FLUSH:
+ stream_flush((CamelStream *)estream);
+ break;
+ case EMCS_CLOSE_OK:
+ if (estream->html_stream) {
+ gtk_html_stream_close(estream->html_stream, GTK_HTML_STREAM_OK);
+ estream->html_stream = NULL;
+ }
+ break;
+ case EMCS_CLOSE_ERROR:
+ if (estream->html_stream) {
+ gtk_html_stream_close(estream->html_stream, GTK_HTML_STREAM_ERROR);
+ estream->html_stream = NULL;
+ }
+ break;
+ }
+
+ e_msgport_reply((EMsg *)msg);
+ d(printf("%p: gui sync op jobs done\n", estream));
+
+ return TRUE;
+}
+
+static void
+em_camel_stream_init (CamelObject *object)
+{
+ EMCamelStream *estream = (EMCamelStream *)object;
+
+ estream->data_port = e_msgport_new();
+ estream->reply_port = e_msgport_new();
+
+ estream->gui_channel = g_io_channel_unix_new(e_msgport_fd(estream->data_port));
+ estream->gui_watch = g_io_add_watch(estream->gui_channel, G_IO_IN, emcs_gui_received, estream);
+
+ estream->used = 0;
+ estream->buffer = g_malloc(EMCS_BUFFER_SIZE);
+
+ d(printf("%p: new estream\n", estream));
+}
+
+static void
+sync_op(EMCamelStream *estream, enum _write_msg_t op, const char *data, size_t n)
+{
+ struct _write_msg msg;
+
+ d(printf("%p: launching sync op %d\n", estream, op));
+ /* we do everything synchronous, we should never have any locks, and
+ this prevents overflow from banked up data */
+ msg.msg.reply_port = estream->reply_port;
+ msg.op = op;
+ msg.data = data;
+ msg.n = n;
+ e_msgport_put(estream->data_port, &msg.msg);
+ e_msgport_wait(estream->reply_port);
+ g_assert(e_msgport_get(msg.msg.reply_port) == &msg.msg);
+ d(printf("%p: returned sync op %d\n", estream, op));
+}
+
+static void
+em_camel_stream_finalize (CamelObject *object)
+{
+ EMCamelStream *estream = (EMCamelStream *)object;
+
+ d(printf("%p: finalising stream\n", object));
+ if (estream->html_stream) {
+ d(printf("%p: html stream still open - error\n", object));
+ if (pthread_self() == mail_gui_thread)
+ gtk_html_stream_close(estream->html_stream, GTK_HTML_STREAM_ERROR);
+ else
+ sync_op(estream, EMCS_CLOSE_ERROR, NULL, 0);
+ }
+
+ /* TODO: is this stuff safe to do in another thread? */
+ g_source_remove(estream->gui_watch);
+ g_io_channel_unref(estream->gui_channel);
+ e_msgport_destroy(estream->data_port);
+ estream->data_port = NULL;
+ e_msgport_destroy(estream->reply_port);
+ estream->reply_port = NULL;
+ g_free(estream->buffer);
+}
+
+static ssize_t
+stream_write (CamelStream *stream, const char *buffer, size_t n)
+{
+ EMCamelStream *estream = EM_CAMEL_STREAM (stream);
+
+ if (estream->html_stream == NULL)
+ return -1;
+
+#ifdef LOG_STREAM
+ if (estream->save)
+ fwrite(buffer, sizeof(char), n, estream->save);
+#endif
+
+ if (pthread_self() == mail_gui_thread)
+ gtk_html_stream_write(estream->html_stream, buffer, n);
+ else {
+#if 1
+ size_t left = EMCS_BUFFER_SIZE-estream->used;
+
+ /* A super-simple buffer, if we get too much to fit, just do a sync
+ write, which will implicitly clear our previous writes first */
+ d(printf("thread write '%d'\n", n));
+
+ if (n >= left) {
+ sync_op(estream, EMCS_WRITE, buffer, n);
+ } else {
+ memcpy(estream->buffer + estream->used, buffer, n);
+ estream->used += n;
+ }
+#else
+ sync_op(estream, EMCS_WRITE, buffer, n);
+#endif
+ }
+ return (ssize_t) n;
+}
+
+static int
+stream_flush(CamelStream *stream)
+{
+ EMCamelStream *estream = (EMCamelStream *)stream;
+
+ if (estream->html_stream) {
+ if (pthread_self() == mail_gui_thread) {
+ /* FIXME: flush html stream via gtkhtml_stream_flush which doens't exist yet ... */
+ while (gtk_events_pending ())
+ gtk_main_iteration ();
+ } else {
+ sync_op(estream, EMCS_FLUSH, NULL, 0);
+ }
+ }
+
+ return 0;
+}
+
+static int
+stream_close(CamelStream *stream)
+{
+ EMCamelStream *estream = (EMCamelStream *)stream;
+
+ d(printf("%p: closing stream\n", stream));
+
+#ifdef LOG_STREAM
+ if (estream->save) {
+ fclose(estream->save);
+ estream->save = NULL;
+ }
+#endif
+
+ if (estream->html_stream) {
+ if (pthread_self() == mail_gui_thread) {
+ gtk_html_stream_close(estream->html_stream, GTK_HTML_STREAM_OK);
+ estream->html_stream = NULL;
+ } else {
+ sync_op(estream, EMCS_CLOSE_OK, NULL, 0);
+ }
+ }
+
+ return 0;
+}
+
+static void
+emcs_gtkhtml_destroy(struct _GtkHTML *html, EMCamelStream *emcs)
+{
+ d(printf("%p: emcs gtkhtml destroy\n", emcs));
+ emcs->html = NULL;
+ emcs->html_stream = NULL;
+}
+
+/* TODO: Could pass NULL for html_stream, and do a gtk_html_begin
+ on first data -> less flashing */
+CamelStream *
+em_camel_stream_new(struct _GtkHTML *html, struct _GtkHTMLStream *html_stream)
+{
+ EMCamelStream *new;
+
+ new = EM_CAMEL_STREAM (camel_object_new (EM_CAMEL_STREAM_TYPE));
+ new->html_stream = html_stream;
+ g_signal_connect(html, "destroy", G_CALLBACK(emcs_gtkhtml_destroy), new);
+
+#ifdef LOG_STREAM
+ {
+ static int count;
+ char name[32];
+
+ sprintf(name, "camel-stream.%d.html", count++);
+ printf("saving raw html to '%s'\n", name);
+ new->save = fopen(name, "w");
+ }
+#endif
+ return CAMEL_STREAM (new);
+}