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authorbertrand <bertrand@helixcode.com>2000-01-24 23:07:18 +0800
committerBertrand Guiheneuf <bertrand@src.gnome.org>2000-01-24 23:07:18 +0800
commit98e15c6b5c3757241e3a4017df85ee0e42a5f947 (patch)
treefb7153111faa14d8091793ae258a2a140baf70e7 /camel/camel-stream-fs.c
parentf64b3bb5f2d3f4fa6e05fcc9223aff78fd8c2f12 (diff)
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add recipient_list to the recipients, not recipients_list. I don't know
2000-01-24 bertrand <bertrand@helixcode.com> * camel/camel-recipient.c (camel_recipient_table_add_list): add recipient_list to the recipients, not recipients_list. I don't know what that variable was doing here. 2000-01-23 bertrand <bertrand@helixcode.com> * camel/camel-store.c (camel_store_get_session): added a public get_session method. * camel/providers/mbox/camel-mbox-summary.c (camel_mbox_save_summary): (camel_mbox_load_summary): load/save message sizes in the summary file * camel/providers/mbox/camel-mbox-summary.h: added a size field to the message information structure. * camel/providers/mbox/camel-mbox-utils.c (parsed_information_to_mbox_summary): copy message size to the mbox summary information too. * camel/camel-stream-fs.c (_seek): updated to work with bounded fs streams. (_write): ditto. (_read): ditto. * camel/camel-stream-fs.h (struct ): added the cur_pos, inf_bound and sup_bound members to allow for bounded fs stream. * camel/camel-stream-fs.c (_set_bounds): new func. (_init_with_fd_and_bounds): idem. (_init_with_name_and_bounds): idem. New functions to allow the usage of bounded fs streams. The bounded fs stream allow, for example, to make a stream from a message stored in an mbox file. svn path=/trunk/; revision=1620
Diffstat (limited to 'camel/camel-stream-fs.c')
-rw-r--r--camel/camel-stream-fs.c180
1 files changed, 169 insertions, 11 deletions
diff --git a/camel/camel-stream-fs.c b/camel/camel-stream-fs.c
index c4d6e9be8c..4c5d12eb0c 100644
--- a/camel/camel-stream-fs.c
+++ b/camel/camel-stream-fs.c
@@ -26,6 +26,7 @@
*/
#include <config.h>
#include "camel-stream-fs.h"
+#include <unistd.h>
#include <sys/types.h>
#include <sys/stat.h>
#include <fcntl.h>
@@ -51,7 +52,10 @@ static void _finalize (GtkObject *object);
static void _destroy (GtkObject *object);
static void _init_with_fd (CamelStreamFs *stream_fs, int fd);
+static void _init_with_fd_and_bounds (CamelStreamFs *stream_fs, int fd, guint32 inf_bound, gint64 sup_bound);
static void _init_with_name (CamelStreamFs *stream_fs, const gchar *name, CamelStreamFsMode mode);
+static void _init_with_name_and_bounds (CamelStreamFs *stream_fs, const gchar *name, CamelStreamFsMode mode,
+ guint32 inf_bound, gint64 sup_bound);
static void
camel_stream_fs_class_init (CamelStreamFsClass *camel_stream_fs_class)
@@ -63,8 +67,10 @@ camel_stream_fs_class_init (CamelStreamFsClass *camel_stream_fs_class)
/* virtual method definition */
camel_stream_fs_class->init_with_fd = _init_with_fd;
+ camel_stream_fs_class->init_with_fd_and_bounds = _init_with_fd_and_bounds;
camel_stream_fs_class->init_with_name = _init_with_name;
-
+ camel_stream_fs_class->init_with_name_and_bounds = _init_with_name_and_bounds;
+
/* virtual method overload */
camel_stream_class->read = _read;
camel_stream_class->write = _write;
@@ -146,21 +152,58 @@ _finalize (GtkObject *object)
CAMEL_LOG_FULL_DEBUG ("Leaving CamelStreamFs::finalize\n");
}
+
+
+static void
+_set_bounds (CamelStreamFs *stream_fs, guint32 inf_bound, gint64 sup_bound)
+{
+ /* store the bounds */
+ stream_fs->inf_bound = inf_bound;
+ stream_fs->sup_bound = sup_bound;
+
+ /* go to the first position */
+ lseek ((CAMEL_STREAM_FS (stream_fs))->fd, inf_bound, SEEK_SET);
+
+ stream_fs->cur_pos = inf_bound;
+}
+
+
+
+
static void
_init_with_fd (CamelStreamFs *stream_fs, int fd)
{
+ /* no bounds by default */
+ _set_bounds (stream_fs, 0, -1);
+
stream_fs->fd = fd;
}
+
+
+
+static void
+_init_with_fd_and_bounds (CamelStreamFs *stream_fs, int fd, guint32 inf_bound, gint64 sup_bound)
+{
+
+ CSFS_CLASS (stream_fs)->init_with_fd (stream_fs, fd);
+ _set_bounds (stream_fs, inf_bound, sup_bound);
+
+}
+
+
+
static void
_init_with_name (CamelStreamFs *stream_fs, const gchar *name, CamelStreamFsMode mode)
{
struct stat s;
int v, fd;
int flags;
-
+
g_assert (name);
CAMEL_LOG_FULL_DEBUG ( "Entering CamelStream::new_with_name, name=\"%s\", mode=%d\n", name, mode);
+
+
v = stat (name, &s);
if (mode & CAMEL_STREAM_FS_READ){
@@ -174,6 +217,7 @@ _init_with_name (CamelStreamFs *stream_fs, const gchar *name, CamelStreamFsMode
else
return;
}
+
if ( (mode & CAMEL_STREAM_FS_READ) && !(mode & CAMEL_STREAM_FS_WRITE) )
if (v == -1) return;
@@ -187,11 +231,25 @@ _init_with_name (CamelStreamFs *stream_fs, const gchar *name, CamelStreamFsMode
stream_fs->name = g_strdup (name);
CSFS_CLASS (stream_fs)->init_with_fd (stream_fs, fd);
-
+ /* no bounds by default */
+ _set_bounds (stream_fs, 0, -1);
+
+
+}
+
+
+static void
+_init_with_name_and_bounds (CamelStreamFs *stream_fs, const gchar *name, CamelStreamFsMode mode,
+ guint32 inf_bound, gint64 sup_bound)
+{
+ CSFS_CLASS (stream_fs)->init_with_name (stream_fs, name, mode);
+ _set_bounds (stream_fs, inf_bound, sup_bound);
}
+
+
CamelStream *
camel_stream_fs_new_with_name (const gchar *name, CamelStreamFsMode mode)
{
@@ -202,6 +260,24 @@ camel_stream_fs_new_with_name (const gchar *name, CamelStreamFsMode mode)
return CAMEL_STREAM (stream_fs);
}
+
+
+CamelStream *
+camel_stream_fs_new_with_name_and_bounds (const gchar *name, CamelStreamFsMode mode,
+ guint32 inf_bound, gint64 sup_bound)
+{
+ CamelStreamFs *stream_fs;
+ stream_fs = gtk_type_new (camel_stream_fs_get_type ());
+ CSFS_CLASS (stream_fs)->init_with_name_and_bounds (stream_fs, name, mode, inf_bound, sup_bound);
+
+ return CAMEL_STREAM (stream_fs);
+
+}
+
+
+
+
+
CamelStream *
camel_stream_fs_new_with_fd (int fd)
@@ -216,6 +292,22 @@ camel_stream_fs_new_with_fd (int fd)
return CAMEL_STREAM (stream_fs);
}
+
+
+CamelStream *
+camel_stream_fs_new_with_fd_and_bounds (int fd, guint32 inf_bound, gint64 sup_bound)
+{
+ CamelStreamFs *stream_fs;
+
+ CAMEL_LOG_FULL_DEBUG ( "Entering CamelStream::new_with_fd fd=%d\n",fd);
+ stream_fs = gtk_type_new (camel_stream_fs_get_type ());
+ CSFS_CLASS (stream_fs)->init_with_fd_and_bounds (stream_fs, fd, inf_bound, sup_bound);
+
+ return CAMEL_STREAM (stream_fs);
+}
+
+
+
/**
* _read: read bytes from a stream
* @stream: stream
@@ -229,18 +321,29 @@ camel_stream_fs_new_with_fd (int fd)
static gint
_read (CamelStream *stream, gchar *buffer, gint n)
{
+ CamelStreamFs *stream_fs = CAMEL_STREAM_FS (stream);
gint v;
+ gint nb_to_read;
+
+ if (stream_fs->sup_bound != -1)
+ nb_to_read = stream_fs->sup_bound - stream_fs->cur_pos;
+ else
+ nb_to_read = n;
+
do {
- v = read ( (CAMEL_STREAM_FS (stream))->fd, buffer, n);
+ v = read ( (CAMEL_STREAM_FS (stream))->fd, buffer, nb_to_read);
} while (v == -1 && errno == EINTR);
if (v<0)
CAMEL_LOG_FULL_DEBUG ("CamelStreamFs::read v=%d\n", v);
+ else
+ stream_fs->cur_pos += v;
+
return v;
}
/**
- * _write: read bytes to a stream
+ * _write: write bytes to a stream
* @stream: the stream
* @buffer: byte buffer
* @n: number of bytes to write
@@ -253,12 +356,21 @@ _read (CamelStream *stream, gchar *buffer, gint n)
static gint
_write (CamelStream *stream, const gchar *buffer, gint n)
{
+ CamelStreamFs *stream_fs = CAMEL_STREAM_FS (stream);
int v;
+ gint nb_to_write;
+
g_assert (stream);
- g_assert ((CAMEL_STREAM_FS (stream))->fd);
+ g_assert (stream_fs->fd);
CAMEL_LOG_FULL_DEBUG ( "CamelStreamFs:: entering write. n=%d\n", n);
+
+ if (stream_fs->sup_bound != -1)
+ nb_to_write = stream_fs->sup_bound - stream_fs->cur_pos;
+ else
+ nb_to_write = n;
+
do {
- v = write ( (CAMEL_STREAM_FS (stream))->fd, buffer, n);
+ v = write ( stream_fs->fd, buffer, nb_to_write);
} while (v == -1 && errno == EINTR);
#if HARD_LOG_LEVEL >= FULL_DEBUG
@@ -267,6 +379,10 @@ _write (CamelStream *stream, const gchar *buffer, gint n)
CAMEL_LOG_FULL_DEBUG ( "CamelStreamFs::write could not write bytes in stream\n");
}
#endif
+
+ if (v>0)
+ stream_fs->cur_pos += v;
+
return v;
}
@@ -336,20 +452,62 @@ static gint
_seek (CamelStream *stream, gint offset, CamelStreamSeekPolicy policy)
{
int whence;
+ gint return_position;
+ gint real_offset;
+ CamelStreamFs *stream_fs = CAMEL_STREAM_FS (stream);
+
switch (policy) {
case CAMEL_STREAM_SET:
- whence = SEEK_SET;
+ real_offset = MAX (stream_fs->inf_bound + offset, stream_fs->inf_bound);
+ if (stream_fs->sup_bound > 0)
+ real_offset = MIN (real_offset, stream_fs->sup_bound);
+ whence = SEEK_SET;
break;
+
case CAMEL_STREAM_CUR:
- whence = SEEK_CUR;
+ if ((stream_fs->sup_bound == -1) && ((stream_fs->cur_pos + offset) > stream_fs->sup_bound)) {
+ real_offset = stream_fs->sup_bound;
+ whence = SEEK_SET;
+ } else if ((stream_fs->cur_pos + offset) < stream_fs->inf_bound) {
+ real_offset = stream_fs->inf_bound;
+ whence = SEEK_SET;
+ } else
+ {
+ real_offset = offset;
+ whence = SEEK_CUR;
+ }
break;
+
case CAMEL_STREAM_END:
- whence = SEEK_END;
+ if (stream_fs->sup_bound != -1) {
+ real_offset = stream_fs->sup_bound - offset;
+ whence = SEEK_SET;
+ } else {
+ real_offset = offset;
+ whence = SEEK_END;
+ }
+
+
break;
default:
return -1;
}
+
- return lseek ((CAMEL_STREAM_FS (stream))->fd, offset, whence);
+ return_position = lseek (stream_fs->fd, real_offset, whence) - stream_fs->inf_bound;
+ stream_fs->cur_pos = return_position;
+
+ return return_position;
}
+
+
+
+
+
+
+
+
+
+
+