correct parameter decl (const)

1999-09-07  bertrand  <Bertrand.Guiheneuf@aful.org>

	* camel/md5-utils.c (md5_get_digest_from_file):
	correct parameter decl (const)

	* camel/md5-utils.h: typo.

	* camel/providers/MH/mh-uid.c
	More work on UID stuff for MH.
	(mh_save_uid_list):
	(mh_load_uid_list):
	(mh_generate_uid_list):
	new funcs. Manage on-disk uid list.

	* camel/providers/MH/mh-utils.c (mh_is_a_message_file):
	Util routines live here now.

svn path=/trunk/; revision=1190

8 files changed, 188 insertions, 38 deletions

diff --git a/ChangeLog b/ChangeLog
index f9c3906c1b..34b6ee3c04 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,5 +1,20 @@
 1999-09-07  bertrand  <Bertrand.Guiheneuf@aful.org>
 
+	* camel/md5-utils.c (md5_get_digest_from_file): 
+	correct parameter decl (const)
+
+	* camel/md5-utils.h: typo.
+
+	* camel/providers/MH/mh-uid.c 
+	More work on UID stuff for MH.
+	(mh_save_uid_list): 
+	(mh_load_uid_list): 
+	(mh_generate_uid_list): 
+	new funcs. Manage on-disk uid list.
+	
+	* camel/providers/MH/mh-utils.c (mh_is_a_message_file): 
+	Util routines live here now.
+
 	* camel/md5-utils.c 
 	Documented all funcs.
 	
diff --git a/camel/md5-utils.c b/camel/md5-utils.c
index 4696905176..53f3373bb5 100644
--- a/camel/md5-utils.c
+++ b/camel/md5-utils.c
@@ -358,7 +358,7 @@ md5_get_digest_from_stream (CamelStream *stream, guchar digest[16])
  * the 16 bytes buffer @digest .
  **/
 void
-md5_get_digest_from_file (gchar *filename, guchar digest[16])
+md5_get_digest_from_file (const gchar *filename, guchar digest[16])
 {	
 	MD5Context ctx;
 	guchar tmp_buf[1024];
diff --git a/camel/md5-utils.h b/camel/md5-utils.h
index da5accbd5b..a2552d21b2 100644
--- a/camel/md5-utils.h
+++ b/camel/md5-utils.h
@@ -43,7 +43,7 @@ void md5_get_digest_from_stream (CamelStream *stream, guchar digest[16]);
 
 /* use this one when speed is needed */
 /* for use in provider code only */
-void md5_get_digest_from_file (gchar *filename, gint buffer_size, guchar digest[16]);
+void md5_get_digest_from_file (const gchar *filename, guchar digest[16]);
 
 /* raw routines */
 void md5_init (MD5Context *ctx);
diff --git a/camel/providers/MH/Makefile.am b/camel/providers/MH/Makefile.am
index 6ebdc765b3..2442be6912 100644
--- a/camel/providers/MH/Makefile.am
+++ b/camel/providers/MH/Makefile.am
@@ -15,12 +15,14 @@ libcamelmh_la_SOURCES = 			\
 	camel-mh-folder.c			\
 	camel-mh-provider.c			\
 	camel-mh-store.c			\
-	mh-uid.c
+	mh-uid.c				\
+	mh-utils.c
 
 libcamelmhinclude_HEADERS =			\
 	camel-mh-folder.h			\
-	camel-mh-store.h\
-	mh-uid.h
+	camel-mh-store.h			\
+	mh-uid.h				\
+	mh-utils.h
 
 
 libcamelmh_la_LDFLAGS = -version-info 0:0:0 -rpath $(libdir)
diff --git a/camel/providers/MH/camel-mh-folder.c b/camel/providers/MH/camel-mh-folder.c
index fa6661c722..272090fa0e 100644
--- a/camel/providers/MH/camel-mh-folder.c
+++ b/camel/providers/MH/camel-mh-folder.c
@@ -38,6 +38,7 @@
 #include "camel-stream-buffered-fs.h"
 #include "camel-folder-summary.h"
 #include "gmime-utils.h"
+#include "mh-utils.h"
 
 
 static CamelFolderClass *parent_class=NULL;
@@ -65,7 +66,6 @@ static void _open (CamelFolder *folder, CamelFolderOpenMode mode);
 
 /* some utility functions */
 static int copy_reg (const char *src_path, const char *dst_path);
-static gboolean _is_a_message_file (const gchar *file_name, const gchar *file_path);
 
 static void
 camel_mh_folder_class_init (CamelMhFolderClass *camel_mh_folder_class)
@@ -221,7 +221,7 @@ _open (CamelFolder *folder, CamelFolderOpenMode mode)
 	dir_entry = readdir (dir_handle);
 	while (dir_entry != NULL) {
 		/* tests if the entry correspond to a message file */
-		if (_is_a_message_file (dir_entry->d_name, mh_folder->directory_path))
+		if (mh_is_a_message_file (dir_entry->d_name, mh_folder->directory_path))
 			/* add the file name to the list */
 			mh_folder->file_name_list = g_list_insert_sorted (mh_folder->file_name_list, 
 									  g_strdup (dir_entry->d_name), 
@@ -233,8 +233,30 @@ _open (CamelFolder *folder, CamelFolderOpenMode mode)
 	closedir (dir_handle);
 	
 	_create_summary (folder);
+	
+	/* get (or create) uid list */
+	if (!mh_load_uid_list (mh_folder))
+		mh_generate_uid_list (mh_folder);
+}
+
+
+
+static void
+_close (CamelFolder *folder, gboolean expunge)
+{
+	CamelMhFolder *mh_folder = CAMEL_MH_FOLDER (folder);
+	
+	if (mh_folder->uid_array)
+		mh_save_uid_list (mh_folder);
+
+	/* call parent implementation */
+	parent_class->close (folder, expunge);
 }
 
+
+
+
+
 /**
  * camel_mh_folder_set_name: set the name of an MH folder
  * @folder: the folder to set the name
@@ -479,29 +501,6 @@ _list_subfolders (CamelFolder *folder)
 
 
 
-static gboolean
-_is_a_message_file (const gchar *file_name, const gchar *file_path)
-{
-	struct stat stat_buf;
-	gint stat_error = 0;
-	gboolean ok;
-	gchar *full_file_name;
-	int i;
-	
-	/* test if the name is a number */
-	i=0;
-	while ((file_name[i] != '\0') && (file_name[i] >= '0') && (file_name[i] <= '9'))
-		i++;
-	if ((i==0) || (file_name[i] != '\0')) return FALSE;
-	
-	/* is it a regular file ? */
-	full_file_name = g_strdup_printf ("%s/%s", file_path, file_name);
-	stat_error = stat (full_file_name, &stat_buf);
-	g_free (full_file_name);
-
-	return  ((stat_error != -1) && S_ISREG (stat_buf.st_mode));
-}
-
 
 static void
 _filename_free (gpointer data)
@@ -583,7 +582,7 @@ _get_message_count (CamelFolder *folder)
 	dir_entry = readdir (dir_handle);
 	while (dir_entry != NULL) {
 		/* tests if the entry correspond to a message file */
-		if (_is_a_message_file (dir_entry->d_name, directory_path)) 
+		if (mh_is_a_message_file (dir_entry->d_name, directory_path)) 
 			message_count++;	
 		/* read next entry */
 		dir_entry = readdir (dir_handle);
@@ -619,7 +618,7 @@ _find_next_free_message_file (CamelFolder *folder, gint *new_msg_number, gchar *
 	dir_entry = readdir (dir_handle);
 	while (dir_entry != NULL) {
 		/* tests if the entry correspond to a message file */
-		if (_is_a_message_file (dir_entry->d_name, directory_path)) {
+		if (mh_is_a_message_file (dir_entry->d_name, directory_path)) {
 			/* see if the message number is the biggest found */
 			current_message_number = atoi (dir_entry->d_name);
 			if (current_message_number > last_max_message_number)
diff --git a/camel/providers/MH/camel-mh-folder.h b/camel/providers/MH/camel-mh-folder.h
index e1c2e86900..40800375eb 100644
--- a/camel/providers/MH/camel-mh-folder.h
+++ b/camel/providers/MH/camel-mh-folder.h
@@ -46,6 +46,7 @@ typedef struct {
 	
 	gchar *directory_path;
 	GList *file_name_list;
+	GArray *uid_array;
 
 } CamelMhFolder;
 
diff --git a/camel/providers/MH/mh-uid.c b/camel/providers/MH/mh-uid.c
index 8c777accaa..b112caa003 100644
--- a/camel/providers/MH/mh-uid.c
+++ b/camel/providers/MH/mh-uid.c
@@ -20,22 +20,34 @@
  * USA
  */
 
+
+#include <config.h> 
+
 #include "mh-uid.h"
 #include "camel-stream.h"
 #include "camel-stream-fs.h"
 #include "camel-stream-buffered-fs.h"
 #include "gmime-utils.h"
 #include "md5-utils.h"
+#include "mh-utils.h"
+
+#include <sys/stat.h> 
+#include <unistd.h>
+#include <sys/types.h>
+#include <fcntl.h>
+#include <dirent.h>
+#include <stdio.h>
+#include <string.h>
+#include <errno.h>
 
-guchar *
-mh_uid_get_for_file (gchar *filename)
+void
+mh_uid_get_for_file (gchar *filename, guchar uid[16])
 {
 	CamelStream *message_stream;
 	GArray *header_array;
 	Rfc822Header *cur_header;
 	int i;
 	MD5Context ctx;
-	guchar *md5_digest_uid;
 
 
 	message_stream = camel_stream_buffered_fs_new_with_name (filename, 
@@ -61,10 +73,119 @@ mh_uid_get_for_file (gchar *filename)
 	
 	g_array_free (header_array, TRUE);
 	
-	md5_digest_uid = g_new0 (guchar, 16);
-	md5_final (md5_digest_uid, &ctx);
+	md5_final (uid, &ctx);
+}
+
+
+
+
+void 
+mh_save_uid_list (CamelMhFolder *mh_folder)
+{
+	GArray *uid_array;
+	MhUidCouple *first_uid_couple;
+	gchar *directory_path = mh_folder->directory_path;
+	gchar *uidfile_path;
+	int fd;
+	int i;
+
+	uidfile_path = g_strdup_printf ("%s/%s", directory_path, ".camel-uid-list");
+	fd = open (uidfile_path, O_WRONLY | O_CREAT );
+	g_free (uidfile_path);
+	if (!fd) return;
+
+	uid_array = mh_folder->uid_array;
+	first_uid_couple = (MhUidCouple *)uid_array->data;
+
+	/* write the number of uid contained in the file */
+	write (fd, &(uid_array->len), sizeof (uid_array->len));
+	
+	/* now write the array of uid self */
+	write (fd, first_uid_couple, sizeof (first_uid_couple) * uid_array->len);
+	
+	close (fd);
+}
+
+
+gint 
+mh_load_uid_list (CamelMhFolder *mh_folder)
+{
+	GArray *new_uid_array;
+	MhUidCouple *first_uid_couple;
+	gchar *directory_path = mh_folder->directory_path;
+	gchar *uidfile_path;
+	int fd;
+	guint uid_nb;
+
+	uidfile_path = g_strdup_printf ("%s/%s", directory_path, ".camel-uid-list");
+	fd = open (uidfile_path, O_RDONLY);
+	g_free (uidfile_path);
+	if (!fd) return -1;
+
+	if (mh_folder->uid_array) g_array_free (mh_folder->uid_array, FALSE);
+
+	read (fd, &uid_nb, sizeof (uid_nb));
+
+	new_uid_array = g_array_new (FALSE, FALSE, sizeof (MhUidCouple));
+	new_uid_array = g_array_set_size (new_uid_array, uid_nb);
+	first_uid_couple = (MhUidCouple *)new_uid_array->data;
+	
+	/* read the number of uids in the file */
+	read (fd, first_uid_couple, sizeof (first_uid_couple) * uid_nb);
+	
+	mh_folder->uid_array = new_uid_array;		
 
-	return md5_digest_uid;
+	return 1;
 }
 
 
+gint 
+mh_generate_uid_list (CamelMhFolder *mh_folder)
+{	
+	GArray *new_uid_array;
+	const gchar *directory_path;
+	struct dirent *dir_entry;
+	DIR *dir_handle;
+	gchar *msg_path;
+	guint msg_count;	
+	MhUidCouple *uid_couple;
+	guint file_number;
+
+	g_assert(mh_folder);
+
+	directory_path = mh_folder->directory_path;
+	if (!directory_path) return -1;
+		
+	msg_count = camel_folder_get_message_count (CAMEL_FOLDER (mh_folder));
+	if (!msg_count) return -1;
+	
+	new_uid_array = g_array_new (FALSE, FALSE, sizeof (MhUidCouple));
+	new_uid_array = g_array_set_size (new_uid_array, msg_count);
+	uid_couple = (MhUidCouple *)new_uid_array->data;
+
+	dir_handle = opendir (directory_path);
+	
+	/* read first entry in the directory */
+	dir_entry = readdir (dir_handle);
+	while (dir_entry != NULL) {
+
+		/* tests if the entry correspond to a message file */
+		if (mh_is_a_message_file (dir_entry->d_name, directory_path)) {
+						
+			/* get the uid for this message */
+			msg_path = g_strdup_printf ("%s/%s", directory_path, dir_entry->d_name);
+			mh_uid_get_for_file (msg_path, uid_couple->uid);
+			g_free (msg_path);
+
+			/* convert filename into file number */
+			uid_couple->file_number = atoi (dir_entry->d_name);
+			uid_couple++;
+		}
+			
+		/* read next entry */
+		dir_entry = readdir (dir_handle);
+	}
+
+	closedir (dir_handle);
+	
+}
diff --git a/camel/providers/MH/mh-uid.h b/camel/providers/MH/mh-uid.h
index 32fe138a53..63dfe5b159 100644
--- a/camel/providers/MH/mh-uid.h
+++ b/camel/providers/MH/mh-uid.h
@@ -24,5 +24,17 @@
 #define MH_UID_H 1
 
 #include <glib.h>
+#include "camel-mh-folder.h"
+
+
+typedef struct {
+	gchar uid[16];
+	guint file_number;
+} MhUidCouple;
+
+void mh_uid_get_for_file (gchar *filename, guchar uid[16]);
+void mh_save_uid_list (CamelMhFolder *mh_folder);
+gint mh_load_uid_list (CamelMhFolder *mh_folder);
+gint mh_generate_uid_list (CamelMhFolder *mh_folder);
 
 #endif /* MH_UID_H */