Camel Reference Manual: CamelDB

## CamelDB CamelDB |

## Functions

gint | (*CamelDBCollate) ()
CamelDBKnownColumnNames | camel_db_get_column_ident ()
gint | (*CamelDBSelectCB) ()
CamelDB * | camel_db_open ()
CamelDB * | camel_db_clone ()
void | camel_db_close ()
gint | camel_db_command ()
gint | camel_db_transaction_command ()
gint | camel_db_begin_transaction ()
gint | camel_db_add_to_transaction ()
gint | camel_db_end_transaction ()
gint | camel_db_abort_transaction ()
gint | camel_db_clear_folder_summary ()
gint | camel_db_rename_folder ()
gint | camel_db_delete_folder ()
gint | camel_db_delete_uid ()
gint | camel_db_delete_uids ()
gint | camel_db_create_folders_table ()
gint | camel_db_select ()
gint | camel_db_write_folder_info_record ()
gint | camel_db_read_folder_info_record ()
gint | camel_db_prepare_message_info_table ()
gint | camel_db_write_message_info_record ()
gint | camel_db_write_fresh_message_info_record ()
gint | camel_db_read_message_info_records ()
gint | camel_db_read_message_info_record_with_uid ()
gint | camel_db_count_junk_message_info ()
gint | camel_db_count_unread_message_info ()
gint | camel_db_count_deleted_message_info ()
gint | camel_db_count_total_message_info ()
gint | camel_db_count_visible_message_info ()
gint | camel_db_count_visible_unread_message_info ()
gint | camel_db_count_junk_not_deleted_message_info ()
gint | camel_db_count_message_info ()
void | camel_db_camel_mir_free ()
gint | camel_db_get_folder_uids ()
GPtrArray * | camel_db_get_folder_junk_uids ()
GPtrArray * | camel_db_get_folder_deleted_uids ()
gchar * | camel_db_sqlize_string ()
void | camel_db_free_sqlized_string ()
gchar * | camel_db_get_column_name ()
gint | camel_db_set_collate ()
gint | camel_db_start_in_memory_transactions ()
gint | camel_db_flush_in_memory_transactions ()
GHashTable * | camel_db_get_folder_preview ()
gint | camel_db_write_preview_record ()
gint | camel_db_reset_folder_version ()

## Types and Values

#define | CAMEL_DB_FILE
#define | CAMEL_DB_IN_MEMORY_TABLE
#define | CAMEL_DB_IN_MEMORY_DB
#define | CAMEL_DB_IN_MEMORY_TABLE_LIMIT
#define | CAMEL_DB_FREE_CACHE_SIZE
#define | CAMEL_DB_SLEEP_INTERVAL
#define | CAMEL_DB_RELEASE_SQLITE_MEMORY
#define | CAMEL_DB_USE_SHARED_CACHE
| CamelDB
| CamelMIRecord
| CamelFIRecord
enum | CamelDBKnownColumnNames

## Description

## Functions

### CamelDBCollate ()

    gint
    (*CamelDBCollate) (gpointer Param1,
                       gint Param2,
                       gconstpointer Param3,
                       gint Param4,
                       gconstpointer Param5);

Since 2.24

### camel_db_get_column_ident ()

    CamelDBKnownColumnNames
    camel_db_get_column_ident (GHashTable **hash,
                               gint index,
                               gint ncols,
                               gchar **col_names);

Traverses column name from index `index` into an enum CamelDBKnownColumnNames value. The `col_names` contains `ncols` columns. First time this is called is created the `hash` from col_names indexes into the enum, and this is reused for every other call. The function expects that column names are returned always in the same order. When all rows are read the `hash` table can be freed with `g_hash_table_destroy()`.

Since 3.4

### CamelDBSelectCB ()

    gint
    (*CamelDBSelectCB) (gpointer data,
                        gint ncol,
                        gchar **colvalues,
                        gchar **colnames);

Since 2.24

### camel_db_open ()

    CamelDB *
    camel_db_open (const gchar *path,
                   GError **error);

Since 2.24

### camel_db_clone ()

    CamelDB *
    camel_db_clone (CamelDB *cdb,
                    GError **error);

Since 2.26

### camel_db_close ()

    void
    camel_db_close (CamelDB *cdb);

Since 2.24

### camel_db_command ()

    gint
    camel_db_command (CamelDB *cdb,
                      const gchar *stmt,
                      GError **error);

Since 2.24

### camel_db_transaction_command ()

    gint
    camel_db_transaction_command (CamelDB *cdb,
                                  GList *qry_list,
                                  GError **error);

Since 2.24

### camel_db_begin_transaction ()

    gint
    camel_db_begin_transaction (CamelDB *cdb,
                                GError **error);

Since 2.24

### camel_db_add_to_transaction ()

    gint
    camel_db_add_to_transaction (CamelDB *cdb,
                                 const gchar *query,
                                 GError **error);

Since 2.24

### camel_db_end_transaction ()

    gint
    camel_db_end_transaction (CamelDB *cdb,
                              GError **error);

Since 2.24

### camel_db_abort_transaction ()

    gint
    camel_db_abort_transaction (CamelDB *cdb,
                                GError **error);

Since 2.24

### camel_db_clear_folder_summary ()

    gint
    camel_db_clear_folder_summary (CamelDB *cdb,
                                   const gchar *folder,
                                   GError **error);

Since 2.24

### camel_db_rename_folder ()

    gint
    camel_db_rename_folder (CamelDB *cdb,
                            const gchar *old_folder,
                            const gchar *new_folder,
                            GError **error);

Since 2.24

### camel_db_delete_folder ()

    gint
    camel_db_delete_folder (CamelDB *cdb,
                            const gchar *folder,
                            GError **error);

Since 2.24

### camel_db_delete_uid ()

    gint
    camel_db_delete_uid (CamelDB *cdb,
                         const gchar *folder,
                         const gchar *uid,
                         GError **error);

Since 2.24

### camel_db_delete_uids ()

    gint
    camel_db_delete_uids (CamelDB *cdb,
                          const gchar *folder_name,
                          GList *uids,
                          GError **error);

Since 2.24

### camel_db_create_folders_table ()

    gint
    camel_db_create_folders_table (CamelDB *cdb,
                                   GError **error);

Since 2.24

### camel_db_select ()

    gint
    camel_db_select (CamelDB *cdb,
                     const gchar *stmt,
                     CamelDBSelectCB callback,
                     gpointer data,
                     GError **error);

Since 2.24

### camel_db_write_folder_info_record ()

    gint
    camel_db_write_folder_info_record (CamelDB *cdb,
                                       CamelFIRecord *record,
                                       GError **error);

Since 2.24

### camel_db_read_folder_info_record ()

    gint
    camel_db_read_folder_info_record (CamelDB *cdb,
                                      const gchar *folder_name,
                                      CamelFIRecord *record,
                                      GError **error);

Since 2.24

### camel_db_prepare_message_info_table ()

    gint
    camel_db_prepare_message_info_table (CamelDB *cdb,
                                         const gchar *folder_name,
                                         GError **error);

Since 2.24

### camel_db_write_message_info_record ()

    gint
    camel_db_write_message_info_record (CamelDB *cdb,
                                        const gchar *folder_name,
                                        CamelMIRecord *record,
                                        GError **error);

Since 2.24

### camel_db_write_fresh_message_info_record ()

    gint
    camel_db_write_fresh_message_info_record
                                   (CamelDB *cdb,
                                    const gchar *folder_name,
                                    CamelMIRecord *record,
                                    GError **error);

Since 2.26

### camel_db_read_message_info_records ()

    gint
    camel_db_read_message_info_records (CamelDB *cdb,
                                        const gchar *folder_name,
                                        gpointer p,
                                        CamelDBSelectCB read_mir_callback,
                                        GError **error);

Since 2.24

### camel_db_read_message_info_record_with_uid ()

    gint
    camel_db_read_message_info_record_with_uid
                                   (CamelDB *cdb,
                                    const gchar *folder_name,
                                    const gchar *uid,
                                    gpointer p,
                                    CamelDBSelectCB read_mir_callback,
                                    GError **error);

Since 2.24

### camel_db_count_junk_message_info ()

    gint
    camel_db_count_junk_message_info (CamelDB *cdb,
                                      const gchar *table_name,
                                      guint32 *count,
                                      GError **error);

Since 2.24

### camel_db_count_unread_message_info ()

    gint
    camel_db_count_unread_message_info (CamelDB *cdb,
                                        const gchar *table_name,
                                        guint32 *count,
                                        GError **error);

Since 2.24

### camel_db_count_deleted_message_info ()

    gint
    camel_db_count_deleted_message_info (CamelDB *cdb,
                                         const gchar *table_name,
                                         guint32 *count,
                                         GError **error);

Since 2.24

### camel_db_count_total_message_info ()

    gint
    camel_db_count_total_message_info (CamelDB *cdb,
                                       const gchar *table_name,
                                       guint32 *count,
                                       GError **error);

Since 2.24

### camel_db_count_visible_message_info ()

    gint
    camel_db_count_visible_message_info (CamelDB *cdb,
                                         const gchar *table_name,
                                         guint32 *count,
                                         GError **error);

Since 2.24

### camel_db_count_visible_unread_message_info ()

    gint
    camel_db_count_visible_unread_message_info
                                   (CamelDB *cdb,
                                    const gchar *table_name,
                                    guint32 *count,
                                    GError **error);

Since 2.24

### camel_db_count_junk_not_deleted_message_info ()

    gint
    camel_db_count_junk_not_deleted_message_info
                                   (CamelDB *cdb,
                                    const gchar *table_name,
                                    guint32 *count,
                                    GError **error);

### camel_db_count_message_info ()

    gint
    camel_db_count_message_info (CamelDB *cdb,
                                 const gchar *query,
                                 guint32 *count,
                                 GError **error);

Since 2.26

### camel_db_camel_mir_free ()

    void
    camel_db_camel_mir_free (CamelMIRecord *record);

Since 2.24

### camel_db_get_folder_uids ()

    gint
    camel_db_get_folder_uids (CamelDB *db,
                              const gchar *folder_name,
                              const gchar *sort_by,
                              const gchar *collate,
                              GHashTable *hash,
                              GError **error);

Fills hash with uid->GUINT_TO_POINTER (flag)

Since 2.24

### camel_db_get_folder_junk_uids ()

    GPtrArray *
    camel_db_get_folder_junk_uids (CamelDB *db,
                                   gchar *folder_name,
                                   GError **error);

Since 2.24

### camel_db_get_folder_deleted_uids ()

    GPtrArray *
    camel_db_get_folder_deleted_uids (CamelDB *db,
                                      const gchar *folder_name,
                                      GError **error);

Since 2.24

### camel_db_sqlize_string ()

    gchar *
    camel_db_sqlize_string (const gchar *string);

Since 2.24

### camel_db_free_sqlized_string ()

    void
    camel_db_free_sqlized_string (gchar *string);

Since 2.24

### camel_db_get_column_name ()

    gchar *
    camel_db_get_column_name (const gchar *raw_name);

Since 2.24

### camel_db_set_collate ()

    gint
    camel_db_set_collate (CamelDB *cdb,
                          const gchar *col,
                          const gchar *collate,
                          CamelDBCollate func);

Since 2.24

### camel_db_start_in_memory_transactions ()

    gint
    camel_db_start_in_memory_transactions (CamelDB *cdb,
                                           GError **error);

Since 2.26

### camel_db_flush_in_memory_transactions ()

    gint
    camel_db_flush_in_memory_transactions (CamelDB *cdb,
                                           const gchar *folder_name,
                                           GError **error);

Since 2.26

### camel_db_get_folder_preview ()

    GHashTable *
    camel_db_get_folder_preview (CamelDB *db,
                                 const gchar *folder_name,
                                 GError **error);

Since 2.28

### camel_db_write_preview_record ()

    gint
    camel_db_write_preview_record (CamelDB *db,
                                   const gchar *folder_name,
                                   const gchar *uid,
                                   const gchar *msg,
                                   GError **error);

Since 2.28

### camel_db_reset_folder_version ()

    gint
    camel_db_reset_folder_version (CamelDB *cdb,
                                   const gchar *folder_name,
                                   gint reset_version,
                                   GError **error);

Since 2.28

## Types and Values

### CAMEL_DB_FILE

    #define CAMEL_DB_FILE "folders.db"

Since 2.24

### CAMEL_DB_IN_MEMORY_TABLE

    #define CAMEL_DB_IN_MEMORY_TABLE "EVO_IN_meM_hAnDlE.temp"

Since 2.26

### CAMEL_DB_IN_MEMORY_DB

    #define CAMEL_DB_IN_MEMORY_DB "EVO_IN_meM_hAnDlE"

Since 2.26

### CAMEL_DB_IN_MEMORY_TABLE_LIMIT

    #define CAMEL_DB_IN_MEMORY_TABLE_LIMIT 100000

Since 2.26

### CAMEL_DB_FREE_CACHE_SIZE

    #define CAMEL_DB_FREE_CACHE_SIZE 2 * 1024 * 1024

Since 2.24

### CAMEL_DB_SLEEP_INTERVAL

    #define CAMEL_DB_SLEEP_INTERVAL 1*10*10

Since 2.24

### CAMEL_DB_RELEASE_SQLITE_MEMORY

    #define CAMEL_DB_RELEASE_SQLITE_MEMORY if(!g_getenv("CAMEL_SQLITE_FREE_CACHE")) sqlite3_release_memory(CAMEL_DB_FREE_CACHE_SIZE);

Since 2.24

### CAMEL_DB_USE_SHARED_CACHE

    #define CAMEL_DB_USE_SHARED_CACHE if(g_getenv("CAMEL_SQLITE_SHARED_CACHE")) sqlite3_enable_shared_cache(TRUE);

Since 2.24

### CamelDB

    typedef struct {
    	sqlite3 *db;
    	/* this lock has been replaced with a rw lock which sits inside priv.
    	 * This is currently unused. Keeping it, not to break the ABI */
    	GMutex *lock;
    	CamelDBPrivate *priv;
    } CamelDB;

Since 2.24

### CamelMIRecord

    typedef struct {
    	gchar *uid;
    	guint32 flags;
    	guint32 msg_type;
    	guint32 dirty;
    	gboolean read;
    	gboolean deleted;
    	gboolean replied;
    	gboolean important;
    	gboolean junk;
    	gboolean attachment;
    	guint32 size;
    	time_t dsent;
    	time_t dreceived;
    	gchar *subject;
    	gchar *from;
    	gchar *to;
    	gchar *cc;
    	gchar *mlist;
    	gchar *followup_flag;
    	gchar *followup_completed_on;
    	gchar *followup_due_by;
    	gchar *part;
    	gchar *labels;
    	gchar *usertags;
    	gchar *cinfo;
    	gchar *bdata;
    	gchar *bodystructure;
    } CamelMIRecord;

The extensive DB format, supporting basic searching and sorting.

#### Members

gchar *`uid`; | Message UID |
guint32 `flags`; | Camel Message info flags |
guint32 `msg_type`; |  |
guint32 `dirty`; |  |
gboolean `read`; | boolean read status |
gboolean `deleted`; | boolean deleted status |
gboolean `replied`; | boolean replied status |
gboolean `important`; | boolean important status |
gboolean `junk`; | boolean junk status |
gboolean `attachment`; | boolean attachment status |
guint32 `size`; | size of the mail |
time_t `dsent`; | date sent |
time_t `dreceived`; | date received |
gchar *`subject`; | subject of the mail |
gchar *`from`; | sender |
gchar *`to`; | recipient |
gchar *`cc`; | CC members |
gchar *`mlist`; | message list headers |
gchar *`followup_flag`; | followup flag / also can be queried to see for followup or not |
gchar *`followup_completed_on`; | completed date, can be used to see if completed |
gchar *`followup_due_by`; | to see the due by date |
gchar *`part`; | part / references / thread id |
gchar *`labels`; | labels of mails also called as userflags |
gchar *`usertags`; | composite string of user tags |
gchar *`cinfo`; | content info string - composite string |
gchar *`bdata`; | provider specific data |
gchar *`bodystructure`; |  |

Since 2.24

### CamelFIRecord

    typedef struct {
    	gchar *folder_name;
    	guint32 version;
    	guint32 flags;
    	guint32 nextuid;
    	time_t time;
    	guint32 saved_count;
    	guint32 unread_count;
    	guint32 deleted_count;
    	guint32 junk_count;
    	guint32 visible_count;
    	guint32 jnd_count;  /* Junked not deleted */
    	gchar *bdata;
    } CamelFIRecord;

Since 2.24

### enum CamelDBKnownColumnNames

#### Members

CAMEL_DB_COLUMN_UNKNOWN |  |
CAMEL_DB_COLUMN_ATTACHMENT |  |
CAMEL_DB_COLUMN_BDATA |  |
CAMEL_DB_COLUMN_BODYSTRUCTURE |  |
CAMEL_DB_COLUMN_CINFO |  |
CAMEL_DB_COLUMN_DELETED |  |
CAMEL_DB_COLUMN_DELETED_COUNT |  |
CAMEL_DB_COLUMN_DRECEIVED |  |
CAMEL_DB_COLUMN_DSENT |  |
CAMEL_DB_COLUMN_FLAGS |  |
CAMEL_DB_COLUMN_FOLDER_NAME |  |
CAMEL_DB_COLUMN_FOLLOWUP_COMPLETED_ON |  |
CAMEL_DB_COLUMN_FOLLOWUP_DUE_BY |  |
CAMEL_DB_COLUMN_FOLLOWUP_FLAG |  |
CAMEL_DB_COLUMN_IMPORTANT |  |
CAMEL_DB_COLUMN_JND_COUNT |  |
CAMEL_DB_COLUMN_JUNK |  |
CAMEL_DB_COLUMN_JUNK_COUNT |  |
CAMEL_DB_COLUMN_LABELS |  |
CAMEL_DB_COLUMN_MAIL_CC |  |
CAMEL_DB_COLUMN_MAIL_FROM |  |
CAMEL_DB_COLUMN_MAIL_TO |  |
CAMEL_DB_COLUMN_MLIST |  |
CAMEL_DB_COLUMN_NEXTUID |  |
CAMEL_DB_COLUMN_PART |  |
CAMEL_DB_COLUMN_PREVIEW |  |
CAMEL_DB_COLUMN_READ |  |
CAMEL_DB_COLUMN_REPLIED |  |
CAMEL_DB_COLUMN_SAVED_COUNT |  |
CAMEL_DB_COLUMN_SIZE |  |
CAMEL_DB_COLUMN_SUBJECT |  |
CAMEL_DB_COLUMN_TIME |  |
CAMEL_DB_COLUMN_UID |  |
CAMEL_DB_COLUMN_UNREAD_COUNT |  |
CAMEL_DB_COLUMN_USERTAGS |  |
CAMEL_DB_COLUMN_VERSION |  |
CAMEL_DB_COLUMN_VISIBLE_COUNT |  |
CAMEL_DB_COLUMN_VUID |  |

Since 3.4