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-rw-r--r--camel/camel-stream-fs.c413
1 files changed, 0 insertions, 413 deletions
diff --git a/camel/camel-stream-fs.c b/camel/camel-stream-fs.c
deleted file mode 100644
index 917fd1f8e1..0000000000
--- a/camel/camel-stream-fs.c
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@@ -1,413 +0,0 @@
-/* -*- Mode: C; tab-width: 8; indent-tabs-mode: t; c-basic-offset: 8 -*- */
-/* camel-stream-fs.c : file system based stream */
-
-/*
- * Authors: Bertrand Guiheneuf <bertrand@helixcode.com>
- * Michael Zucchi <notzed@ximian.com>
- *
- * Copyright 1999, 2000 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 <unistd.h>
-#include <sys/types.h>
-#include <sys/stat.h>
-#include <fcntl.h>
-#include <errno.h>
-#include <string.h>
-
-#include "camel-operation.h"
-#include "camel-stream-fs.h"
-#include "camel-session.h"
-
-static CamelSeekableStreamClass *parent_class = NULL;
-
-/* Returns the class for a CamelStreamFS */
-#define CSFS_CLASS(so) CAMEL_STREAM_FS_CLASS (CAMEL_OBJECT_GET_CLASS(so))
-
-static ssize_t stream_read (CamelStream *stream, char *buffer, size_t n);
-static ssize_t stream_write (CamelStream *stream, const char *buffer, size_t n);
-static int stream_flush (CamelStream *stream);
-static int stream_close (CamelStream *stream);
-static off_t stream_seek (CamelSeekableStream *stream, off_t offset,
- CamelStreamSeekPolicy policy);
-
-static void
-camel_stream_fs_class_init (CamelStreamFsClass *camel_stream_fs_class)
-{
- CamelSeekableStreamClass *camel_seekable_stream_class =
- CAMEL_SEEKABLE_STREAM_CLASS (camel_stream_fs_class);
- CamelStreamClass *camel_stream_class =
- CAMEL_STREAM_CLASS (camel_stream_fs_class);
-
- parent_class = CAMEL_SEEKABLE_STREAM_CLASS (camel_type_get_global_classfuncs (camel_seekable_stream_get_type ()));
-
- /* virtual method overload */
- camel_stream_class->read = stream_read;
- camel_stream_class->write = stream_write;
- camel_stream_class->flush = stream_flush;
- camel_stream_class->close = stream_close;
-
- camel_seekable_stream_class->seek = stream_seek;
-}
-
-static void
-camel_stream_fs_init (gpointer object, gpointer klass)
-{
- CamelStreamFs *stream = CAMEL_STREAM_FS (object);
-
- stream->fd = -1;
- ((CamelSeekableStream *)stream)->bound_end = CAMEL_STREAM_UNBOUND;
-}
-
-static void
-camel_stream_fs_finalize (CamelObject *object)
-{
- CamelStreamFs *stream_fs = CAMEL_STREAM_FS (object);
-
- if (stream_fs->fd != -1)
- close (stream_fs->fd);
-}
-
-
-CamelType
-camel_stream_fs_get_type (void)
-{
- static CamelType camel_stream_fs_type = CAMEL_INVALID_TYPE;
-
- if (camel_stream_fs_type == CAMEL_INVALID_TYPE) {
- camel_stream_fs_type = camel_type_register (camel_seekable_stream_get_type (), "CamelStreamFs",
- sizeof (CamelStreamFs),
- sizeof (CamelStreamFsClass),
- (CamelObjectClassInitFunc) camel_stream_fs_class_init,
- NULL,
- (CamelObjectInitFunc) camel_stream_fs_init,
- (CamelObjectFinalizeFunc) camel_stream_fs_finalize);
- }
-
- return camel_stream_fs_type;
-}
-
-/**
- * camel_stream_fs_new_with_fd:
- * @fd: a file descriptor
- *
- * Creates a new fs stream using the given file descriptor @fd as the
- * backing store. When the stream is destroyed, the file descriptor
- * will be closed.
- *
- * Returns a new fs stream.
- **/
-CamelStream *
-camel_stream_fs_new_with_fd (int fd)
-{
- CamelStreamFs *stream_fs;
- off_t offset;
-
- if (fd == -1)
- return NULL;
-
- stream_fs = CAMEL_STREAM_FS (camel_object_new (camel_stream_fs_get_type ()));
- stream_fs->fd = fd;
- offset = lseek (fd, 0, SEEK_CUR);
- if (offset == -1)
- offset = 0;
- CAMEL_SEEKABLE_STREAM (stream_fs)->position = offset;
-
- return CAMEL_STREAM (stream_fs);
-}
-
-/**
- * camel_stream_fs_new_with_fd_and_bounds:
- * @fd: a file descriptor
- * @start: the first valid position in the file
- * @end: the first invalid position in the file, or CAMEL_STREAM_UNBOUND
- *
- * Returns a stream associated with the given file descriptor and bounds.
- * When the stream is destroyed, the file descriptor will be closed.
- *
- * Return value: the stream
- **/
-CamelStream *
-camel_stream_fs_new_with_fd_and_bounds (int fd, off_t start, off_t end)
-{
- CamelStream *stream;
-
- stream = camel_stream_fs_new_with_fd (fd);
- camel_seekable_stream_set_bounds (CAMEL_SEEKABLE_STREAM (stream), start, end);
-
- return stream;
-}
-
-/**
- * camel_stream_fs_new_with_name:
- * @name: a local filename
- * @flags: flags as in open(2)
- * @mode: a file mode
- *
- * Creates a new CamelStream corresponding to the named file, flags,
- * and mode.
- *
- * Return value: the stream, or #NULL on error.
- **/
-CamelStream *
-camel_stream_fs_new_with_name (const char *name, int flags, mode_t mode)
-{
- int fd;
-
- fd = open (name, flags, mode);
- if (fd == -1) {
- return NULL;
- }
-
- return camel_stream_fs_new_with_fd (fd);
-}
-
-/**
- * camel_stream_fs_new_with_name_and_bounds:
- * @name: a local filename
- * @flags: flags as in open(2)
- * @mode: a file mode
- * @start: the first valid position in the file
- * @end: the first invalid position in the file, or CAMEL_STREAM_UNBOUND
- *
- * Creates a new CamelStream corresponding to the given arguments.
- *
- * Return value: the stream, or NULL on error.
- **/
-CamelStream *
-camel_stream_fs_new_with_name_and_bounds (const char *name, int flags,
- mode_t mode, off_t start, off_t end)
-{
- CamelStream *stream;
-
- stream = camel_stream_fs_new_with_name (name, flags, mode);
- if (stream == NULL)
- return NULL;
-
- camel_seekable_stream_set_bounds (CAMEL_SEEKABLE_STREAM (stream),
- start, end);
-
- return stream;
-}
-
-
-static ssize_t
-stream_read (CamelStream *stream, char *buffer, size_t n)
-{
- CamelStreamFs *stream_fs = CAMEL_STREAM_FS (stream);
- CamelSeekableStream *seekable = CAMEL_SEEKABLE_STREAM (stream);
- ssize_t nread;
- int cancel_fd;
-
- if (camel_operation_cancel_check(NULL)) {
- errno = EINTR;
- return -1;
- }
-
- if (seekable->bound_end != CAMEL_STREAM_UNBOUND)
- n = MIN (seekable->bound_end - seekable->position, n);
-
- cancel_fd = camel_operation_cancel_fd(NULL);
- if (cancel_fd == -1) {
- do {
- nread = read (stream_fs->fd, buffer, n);
- } while (nread == -1 && (errno == EINTR || errno == EAGAIN));
- } else {
- fd_set rdset;
- int error, flags, fdmax;
-
- flags = fcntl (stream_fs->fd, F_GETFL);
- fcntl (stream_fs->fd, F_SETFL, flags | O_NONBLOCK);
-
- do {
- FD_ZERO (&rdset);
- FD_SET (stream_fs->fd, &rdset);
- FD_SET (cancel_fd, &rdset);
- fdmax = MAX (stream_fs->fd, cancel_fd) + 1;
-
- nread = -1;
- if (select (fdmax, &rdset, 0, 0, NULL) != -1) {
- if (FD_ISSET (cancel_fd, &rdset)) {
- fcntl (stream_fs->fd, F_SETFL, flags);
- errno = EINTR;
- return -1;
- }
-
- do {
- nread = read (stream_fs->fd, buffer, n);
- } while (nread == -1 && errno == EAGAIN);
- } else if (errno == EINTR) {
- errno = EAGAIN;
- }
- } while (nread == -1 && errno == EAGAIN);
-
- error = errno;
- fcntl (stream_fs->fd, F_SETFL, flags);
- errno = error;
- }
-
- if (nread > 0)
- seekable->position += nread;
- else if (nread == 0)
- stream->eos = TRUE;
-
- return nread;
-}
-
-static ssize_t
-stream_write (CamelStream *stream, const char *buffer, size_t n)
-{
- CamelStreamFs *stream_fs = CAMEL_STREAM_FS (stream);
- CamelSeekableStream *seekable = CAMEL_SEEKABLE_STREAM (stream);
- ssize_t w, written = 0;
- int cancel_fd;
-
- if (camel_operation_cancel_check(NULL)) {
- errno = EINTR;
- return -1;
- }
-
- if (seekable->bound_end != CAMEL_STREAM_UNBOUND)
- n = MIN (seekable->bound_end - seekable->position, n);
-
- cancel_fd = camel_operation_cancel_fd(NULL);
- if (cancel_fd == -1) {
- do {
- do {
- w = write (stream_fs->fd, buffer + written, n - written);
- } while (w == -1 && (errno == EINTR || errno == EAGAIN));
-
- if (w > 0)
- written += w;
- } while (w != -1 && written < n);
- } else {
- fd_set rdset, wrset;
- int error, flags, fdmax;
-
- flags = fcntl (stream_fs->fd, F_GETFL);
- fcntl (stream_fs->fd, F_SETFL, flags | O_NONBLOCK);
-
- fdmax = MAX (stream_fs->fd, cancel_fd)+1;
- do {
- FD_ZERO (&rdset);
- FD_ZERO (&wrset);
- FD_SET (stream_fs->fd, &wrset);
- FD_SET (cancel_fd, &rdset);
-
- w = -1;
- if (select (fdmax, &rdset, &wrset, 0, NULL) != -1) {
- if (FD_ISSET (cancel_fd, &rdset)) {
- fcntl (stream_fs->fd, F_SETFL, flags);
- errno = EINTR;
- return -1;
- }
-
- do {
- w = write (stream_fs->fd, buffer + written, n - written);
- } while (w == -1 && errno == EINTR);
-
- if (w == -1) {
- if (errno == EAGAIN) {
- w = 0;
- } else {
- error = errno;
- fcntl (stream_fs->fd, F_SETFL, flags);
- errno = error;
- return -1;
- }
- } else
- written += w;
- } else if (errno == EINTR) {
- w = 0;
- }
- } while (w != -1 && written < n);
-
- error = errno;
- fcntl (stream_fs->fd, F_SETFL, flags);
- errno = error;
- }
-
- if (written > 0)
- seekable->position += written;
- else if (w == -1)
- return -1;
-
- return written;
-}
-
-static int
-stream_flush (CamelStream *stream)
-{
- return fsync(((CamelStreamFs *)stream)->fd);
-}
-
-static int
-stream_close (CamelStream *stream)
-{
- if (close (((CamelStreamFs *)stream)->fd) == -1)
- return -1;
-
- ((CamelStreamFs *)stream)->fd = -1;
- return 0;
-}
-
-static off_t
-stream_seek (CamelSeekableStream *stream, off_t offset, CamelStreamSeekPolicy policy)
-{
- CamelStreamFs *stream_fs = CAMEL_STREAM_FS (stream);
- off_t real = 0;
-
- switch (policy) {
- case CAMEL_STREAM_SET:
- real = offset;
- break;
- case CAMEL_STREAM_CUR:
- real = stream->position + offset;
- break;
- case CAMEL_STREAM_END:
- if (stream->bound_end == CAMEL_STREAM_UNBOUND) {
- real = lseek(stream_fs->fd, offset, SEEK_END);
- if (real != -1) {
- if (real<stream->bound_start)
- real = stream->bound_start;
- stream->position = real;
- }
- return real;
- }
- real = stream->bound_end + offset;
- break;
- }
-
- if (stream->bound_end != CAMEL_STREAM_UNBOUND)
- real = MIN (real, stream->bound_end);
- real = MAX (real, stream->bound_start);
-
- real = lseek(stream_fs->fd, real, SEEK_SET);
- if (real == -1)
- return -1;
-
- if (real != stream->position && ((CamelStream *)stream)->eos)
- ((CamelStream *)stream)->eos = FALSE;
-
- stream->position = real;
-
- return real;
-}
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