diff options
Diffstat (limited to 'camel/camel-stream-mem.c')
-rw-r--r-- | camel/camel-stream-mem.c | 295 |
1 files changed, 0 insertions, 295 deletions
diff --git a/camel/camel-stream-mem.c b/camel/camel-stream-mem.c deleted file mode 100644 index 8842e229cc..0000000000 --- a/camel/camel-stream-mem.c +++ /dev/null @@ -1,295 +0,0 @@ -/* -*- Mode: C; tab-width: 8; indent-tabs-mode: t; c-basic-offset: 8 -*- */ -/* camel-stream-mem.c : memory buffer based stream */ - -/* inspired by gnome-stream-mem.c in bonobo by Miguel de Icaza */ -/* - * - * Author : - * Bertrand Guiheneuf <bertrand@helixcode.com> - * - * Copyright 1999, 2000 Helix Code, Inc. (http://www.helixcode.com) - * - * 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 - */ -#include <config.h> -#include "camel-stream-mem.h" -#include <sys/types.h> -#include <sys/stat.h> -#include <fcntl.h> -#include <errno.h> -#include "camel-log.h" - -static CamelStreamClass *parent_class=NULL; - - -/* Returns the class for a CamelStreamMEM */ -#define CSM_CLASS(so) CAMEL_STREAM_MEM_CLASS (GTK_OBJECT(so)->klass) - -static gint _read (CamelStream *stream, gchar *buffer, gint n); -static gint _write (CamelStream *stream, const gchar *buffer, gint n); -static void _flush (CamelStream *stream); -static gint _available (CamelStream *stream); -static gboolean _eos (CamelStream *stream); -static void _close (CamelStream *stream); -static gint _seek (CamelSeekableStream *stream, gint offset, CamelStreamSeekPolicy policy); - -static void _finalize (GtkObject *object); - -static void -camel_stream_mem_class_init (CamelStreamMemClass *camel_stream_mem_class) -{ - CamelSeekableStreamClass *camel_seekable_stream_class = CAMEL_SEEKABLE_STREAM_CLASS (camel_stream_mem_class); - CamelStreamClass *camel_stream_class = CAMEL_STREAM_CLASS (camel_stream_mem_class); - GtkObjectClass *gtk_object_class = GTK_OBJECT_CLASS (camel_stream_mem_class); - - parent_class = gtk_type_class (gtk_object_get_type ()); - - /* virtual method definition */ - - /* virtual method overload */ - camel_stream_class->read = _read; - camel_stream_class->write = _write; - camel_stream_class->flush = _flush; - camel_stream_class->available = _available; - camel_stream_class->eos = _eos; - camel_stream_class->close = _close; - - camel_seekable_stream_class->seek = _seek; - - gtk_object_class->finalize = _finalize; - -} - -static void -camel_stream_mem_init (gpointer object, gpointer klass) -{ - CamelStreamMem *camel_stream_mem = CAMEL_STREAM_MEM (object); - camel_stream_mem->position = 0; -} - -GtkType -camel_stream_mem_get_type (void) -{ - static GtkType camel_stream_mem_type = 0; - - if (!camel_stream_mem_type) { - GtkTypeInfo camel_stream_mem_info = - { - "CamelStreamMem", - sizeof (CamelStreamMem), - sizeof (CamelStreamMemClass), - (GtkClassInitFunc) camel_stream_mem_class_init, - (GtkObjectInitFunc) camel_stream_mem_init, - /* reserved_1 */ NULL, - /* reserved_2 */ NULL, - (GtkClassInitFunc) NULL, - }; - - camel_stream_mem_type = gtk_type_unique (camel_seekable_stream_get_type (), &camel_stream_mem_info); - } - - return camel_stream_mem_type; -} - - -CamelStream * -camel_stream_mem_new (CamelStreamMemMode mode) -{ - return camel_stream_mem_new_with_byte_array (g_byte_array_new (), - mode); -} - -CamelStream * -camel_stream_mem_new_with_buffer (const char *buffer, unsigned int len, - CamelStreamMemMode mode) -{ - GByteArray *ba; - - ba = g_byte_array_new (); - g_byte_array_append (ba, (const guint8 *)buffer, len); - return camel_stream_mem_new_with_byte_array (ba, mode); -} - -CamelStream * -camel_stream_mem_new_with_byte_array (GByteArray *byte_array, - CamelStreamMemMode mode) -{ - CamelStreamMem *stream_mem; - - stream_mem = gtk_type_new (camel_stream_mem_get_type ()); - stream_mem->mode = mode; - stream_mem->buffer = byte_array; - - return CAMEL_STREAM (stream_mem); -} - - - -static void -_finalize (GtkObject *object) -{ - CamelStreamMem *stream_mem = CAMEL_STREAM_MEM (object); - - - CAMEL_LOG_FULL_DEBUG ("Entering CamelStreamMem::finalize\n"); - g_byte_array_free (stream_mem->buffer, TRUE); - - GTK_OBJECT_CLASS (parent_class)->finalize (object); - CAMEL_LOG_FULL_DEBUG ("Leaving CamelStreamMem::finalize\n"); -} - - - -/** - * _read: read bytes from a stream - * @stream: stream - * @buffer: buffer where bytes are stored - * @n: max number of bytes to read - * - * - * - * Return value: number of bytes actually read. - **/ -static gint -_read (CamelStream *stream, gchar *buffer, gint n) -{ - CamelStreamMem *camel_stream_mem = CAMEL_STREAM_MEM (stream); - gint nb_bytes_to_read; - - g_assert (stream); - nb_bytes_to_read = MIN (n, (camel_stream_mem->buffer)->len - camel_stream_mem->position); - if (nb_bytes_to_read>0) { - memcpy (buffer, (camel_stream_mem->buffer)->data + camel_stream_mem->position, nb_bytes_to_read); - camel_stream_mem->position += nb_bytes_to_read; - } else nb_bytes_to_read = -1; - - return nb_bytes_to_read; -} - - -/** - * _write: read bytes to a stream - * @stream: the stream - * @buffer: byte buffer - * @n: number of bytes to write - * - * - * - * Return value: the number of bytes actually written - * in the stream. - **/ -static gint -_write (CamelStream *stream, const gchar *buffer, gint n) -{ - CamelStreamMem *camel_stream_mem = CAMEL_STREAM_MEM (stream); - - g_assert (stream); - g_return_val_if_fail (camel_stream_mem->position>=0, -1); - camel_stream_mem->buffer = g_byte_array_append (camel_stream_mem->buffer, (const guint8 *)buffer, n); - camel_stream_mem->position += n; - - return n; -} - - - -/** - * _flush: flush pending changes - * @stream: the stream - * - * - **/ -static void -_flush (CamelStream *stream) -{ - g_warning ("Not implemented yet"); -} - - - -/** - * _available: return the number of bytes available for reading - * @stream: the stream - * - * Return the number of bytes available without blocking. - * - * Return value: the number of bytes available - **/ -static gint -_available (CamelStream *stream) -{ - g_warning ("Not implemented yet"); - return -1; -} - - -/** - * _eos: test if there are bytes left to read - * @stream: the stream - * - * - * - * Return value: true if all stream has been read - **/ -static gboolean -_eos (CamelStream *stream) -{ - g_warning ("Not implemented yet"); - return FALSE; -} - - -/** - * _close: close a stream - * @stream: the stream - * - * - **/ -static void -_close (CamelStream *stream) -{ - g_warning ("Not implemented yet"); -} - - - -static gint -_seek (CamelSeekableStream *stream, gint offset, CamelStreamSeekPolicy policy) -{ - gint position; - CamelStreamMem *camel_stream_mem = CAMEL_STREAM_MEM (stream); - - switch (policy) { - case CAMEL_STREAM_SET: - position = offset; - break; - case CAMEL_STREAM_CUR: - position = camel_stream_mem->position + offset; - break; - case CAMEL_STREAM_END: - position = (camel_stream_mem->buffer)->len + offset; - break; - default: - return -1; - } - - position = MIN (position, (camel_stream_mem->buffer)->len); - position = MAX (position, 0); - - camel_stream_mem->position = position; - - return position; -} |