Set summary equal to NULL. (imap_get_summary): Store the summary in the

2000-06-19  Jeffrey Stedfast  <fejj@helixcode.com>

	* providers/imap/camel-imap-folder.c (camel_imap_folder_init):
	Set summary equal to NULL.
	(imap_get_summary): Store the summary in the ImapFolder
	(imap_summary_get_by_uid): If we have a summary cache in the
	ImapFolder, first check to see if that message info is in the
	cached summary first, if not fetch it directly from the IMAP
	server and append it to the summary cache.
	(imap_get_message_flags): Don't free the message info that we
	get back from summary_get_by_uid as we don't want to be
	corrupting our cached summary.

svn path=/trunk/; revision=3636

2 files changed, 36 insertions, 13 deletions

diff --git a/camel/providers/imap/camel-imap-folder.c b/camel/providers/imap/camel-imap-folder.c
index c52cc00a09..55d21d9511 100644
--- a/camel/providers/imap/camel-imap-folder.c
+++ b/camel/providers/imap/camel-imap-folder.c
@@ -153,6 +153,7 @@ camel_imap_folder_init (gpointer object, gpointer klass)
 	folder->has_summary_capability = TRUE;
 	folder->has_search_capability = FALSE; /* default -  we have to query IMAP to know for sure */
 
+	imap_folder->summary = NULL;
 	imap_folder->count = -1;
 }
 
@@ -252,6 +253,7 @@ imap_init (CamelFolder *folder, CamelStore *parent_store, CamelFolder *parent_fo
 
 	
  	imap_folder->search = NULL;
+	imap_folder->summary = NULL;
 
 	/* SELECT the IMAP mail spool */
 	status = camel_imap_command_extended (CAMEL_IMAP_STORE (folder->parent_store), folder,
@@ -673,10 +675,15 @@ get_header_field (gchar *header, gchar *field)
 GPtrArray *
 imap_get_summary (CamelFolder *folder, CamelException *ex)
 {
+	/* FIXME: we leak mem here if the summary already exists
+	 * Q: where do we want to free the pre-existing summary? */
+	CamelImapFolder *imap_folder = CAMEL_IMAP_FOLDER (folder);
 	GPtrArray *array = NULL;
 	CamelMessageInfo *info;
 	int i, num, status;
 	char *result, *datestr, *p, *q;
+
+	imap_free_summary (folder, imap_folder->summary);
 	
 	num = imap_get_message_count (folder, ex);
 	
@@ -825,6 +832,8 @@ imap_get_summary (CamelFolder *folder, CamelException *ex)
 		g_ptr_array_add (array, info);
 	}
 
+	imap_folder->summary = array;
+	
 	return array;
 }
 
@@ -846,6 +855,7 @@ imap_free_summary (CamelFolder *folder, GPtrArray *array)
 	}
 
 	g_ptr_array_free (array, TRUE);
+	array = NULL;
 	
 	return;
 }
@@ -854,11 +864,25 @@ imap_free_summary (CamelFolder *folder, GPtrArray *array)
 static const CamelMessageInfo *
 imap_summary_get_by_uid (CamelFolder *folder, const char *uid)
 {
-	/* TODO: code this - do a "UID FETCH <uid> BODY.PEEK[HEADER]" and parse */
+	CamelImapFolder *imap_folder = CAMEL_IMAP_FOLDER (folder);
 	CamelMessageInfo *info = NULL;
 	char *result, *datestr, *p;
 	int status;
 
+	/* lets first check to see if we have the message info cached */
+	if (imap_folder->summary) {
+		int max, i;
+
+		max = imap_folder->summary->len;
+		for (i = 0; i < max; i++) {
+			info = g_ptr_array_index (imap_folder->summary, i);
+			if (!strcmp(info->uid, uid))
+				return info;
+		}
+	}
+
+	/* we don't have a cached copy, so fetch it */
+	
 	status = camel_imap_command_extended (CAMEL_IMAP_STORE (folder->parent_store), folder,
 					      &result, "UID FETCH %s BODY.PEEK[HEADER]", uid);
 
@@ -919,6 +943,14 @@ imap_summary_get_by_uid (CamelFolder *folder, const char *uid)
 		info->flags |= CAMEL_MESSAGE_DRAFT;
 	
 	g_free (result);
+
+	/* since we didn't have it cached, lets add it to our cache */
+	if (imap_folder->summary) {
+		g_ptr_array_add (imap_folder->summary, info);
+	} else {
+		imap_folder->summary = g_ptr_array_new ();
+		g_ptr_array_add (imap_folder->summary, info);
+	}
 	
 	return info;
 }
@@ -966,7 +998,6 @@ static guint32
 imap_get_message_flags (CamelFolder *folder, const char *uid, CamelException *ex)
 {
 	CamelMessageInfo *info;
-	guint32 flags;
 
 	if (!(info = (CamelMessageInfo *)imap_summary_get_by_uid (folder, uid))) {
 		CamelService *service = CAMEL_SERVICE (folder->parent_store);
@@ -977,15 +1008,7 @@ imap_get_message_flags (CamelFolder *folder, const char *uid, CamelException *ex
 		return 0;
 	}
 
-	flags = info->flags;
-
-	g_free (info->subject);
-	g_free (info->to);
-	g_free (info->from);
-	g_free (info->uid);
-	g_free (info);
-
-	return flags;
+	return info->flags;
 }
 
 static void
diff --git a/camel/providers/imap/camel-imap-folder.h b/camel/providers/imap/camel-imap-folder.h
index 64483ca147..ea96b2facb 100644
--- a/camel/providers/imap/camel-imap-folder.h
+++ b/camel/providers/imap/camel-imap-folder.h
@@ -45,8 +45,8 @@ extern "C" {
 typedef struct {
 	CamelFolder parent_object;
 
-	CamelFolderSearch *search; /* used to run searches, we just use the real thing (tm) */
-
+	CamelFolderSearch *search; /* used to run searches */
+	GPtrArray *summary;
 	gint count;
 } CamelImapFolder;