[evolution-data-server/openismus-work-3-8: 16/43] EDataBookCursor: Changed APIs to permit GCancellable for long running operations.
- From: Tristan Van Berkom <tvb src gnome org>
- To: commits-list gnome org
- Cc:
- Subject: [evolution-data-server/openismus-work-3-8: 16/43] EDataBookCursor: Changed APIs to permit GCancellable for long running operations.
- Date: Sun, 1 Dec 2013 09:41:22 +0000 (UTC)
commit 4f733d86a7398395399232d3369cc45f762e8c1c
Author: Tristan Van Berkom <tristanvb openismus com>
Date: Fri Nov 29 21:28:00 2013 +0900
EDataBookCursor: Changed APIs to permit GCancellable for long running operations.
addressbook/libedata-book/e-data-book-cursor.c | 77 +++++++++++-------------
addressbook/libedata-book/e-data-book-cursor.h | 16 ++++--
2 files changed, 46 insertions(+), 47 deletions(-)
---
diff --git a/addressbook/libedata-book/e-data-book-cursor.c b/addressbook/libedata-book/e-data-book-cursor.c
index e400d61..6e44c1d 100644
--- a/addressbook/libedata-book/e-data-book-cursor.c
+++ b/addressbook/libedata-book/e-data-book-cursor.c
@@ -242,9 +242,8 @@ static void e_data_book_cursor_set_property (GObject *object,
static void data_book_cursor_set_values (EDataBookCursor *cursor,
gint total,
gint position);
-static gboolean data_book_cursor_compare_contact (EDataBookCursor *cursor,
+static gint data_book_cursor_compare_contact (EDataBookCursor *cursor,
EContact *contact,
- gint *result,
gboolean *matches_sexp);
static void calculate_step_position (EDataBookCursor *cursor,
EBookCursorOrigin origin,
@@ -355,7 +354,7 @@ e_data_book_cursor_constructed (GObject *object)
GError *error = NULL;
/* Get the initial cursor values */
- if (!e_data_book_cursor_recalculate (cursor, &error)) {
+ if (!e_data_book_cursor_recalculate (cursor, NULL, &error)) {
g_warning ("Failed to calculate initial cursor position: %s", error->message);
g_clear_error (&error);
}
@@ -468,22 +467,26 @@ data_book_cursor_set_values (EDataBookCursor *cursor,
}
}
-static gboolean
+static gint
data_book_cursor_compare_contact (EDataBookCursor *cursor,
EContact *contact,
- gint *result,
gboolean *matches_sexp)
{
- if (!E_DATA_BOOK_CURSOR_GET_CLASS (cursor)->compare_contact)
- return FALSE;
+ gint result;
+
+ if (!E_DATA_BOOK_CURSOR_GET_CLASS (cursor)->compare_contact) {
+ g_critical ("EDataBookCursor.compare_contact() unimplemented on type '%s'",
+ G_OBJECT_TYPE_NAME (cursor));
+ return 0;
+ }
g_object_ref (cursor);
- *result = (* E_DATA_BOOK_CURSOR_GET_CLASS (cursor)->compare_contact) (cursor,
- contact,
- matches_sexp);
+ result = (* E_DATA_BOOK_CURSOR_GET_CLASS (cursor)->compare_contact) (cursor,
+ contact,
+ matches_sexp);
g_object_unref (cursor);
- return TRUE;
+ return result;
}
static void
@@ -555,6 +558,7 @@ data_book_cursor_handle_step (EDBusAddressBookCursor *dbus_object,
origin,
count,
&results,
+ NULL,
&error);
if (n_results < 0) {
@@ -607,6 +611,7 @@ data_book_cursor_handle_set_alphabetic_index (EDBusAddressBookCursor *dbus_objec
if (!e_data_book_cursor_set_alphabetic_index (cursor,
index,
locale,
+ NULL,
&error)) {
g_dbus_method_invocation_return_gerror (invocation, error);
g_clear_error (&error);
@@ -628,7 +633,7 @@ data_book_cursor_handle_set_query (EDBusAddressBookCursor *dbus_object,
{
GError *error = NULL;
- if (!e_data_book_cursor_set_sexp (cursor, query, &error)) {
+ if (!e_data_book_cursor_set_sexp (cursor, query, NULL, &error)) {
g_dbus_method_invocation_return_gerror (invocation, error);
g_clear_error (&error);
} else {
@@ -733,6 +738,7 @@ e_data_book_cursor_get_position (EDataBookCursor *cursor)
* e_data_book_cursor_set_sexp:
* @cursor: an #EDataBookCursor
* @sexp: (allow-none): the search expression to set
+ * @cancellable: (allow-none): A #GCancellable
* @error: (out) (allow-none): return location for a #GError, or %NULL
*
* Sets the search expression for the cursor
@@ -744,6 +750,7 @@ e_data_book_cursor_get_position (EDataBookCursor *cursor)
gboolean
e_data_book_cursor_set_sexp (EDataBookCursor *cursor,
const gchar *sexp,
+ GCancellable *cancellable,
GError **error)
{
GError *local_error = NULL;
@@ -769,7 +776,7 @@ e_data_book_cursor_set_sexp (EDataBookCursor *cursor,
* we can't fail anymore so just fire a warning
*/
if (success &&
- !e_data_book_cursor_recalculate (cursor, &local_error)) {
+ !e_data_book_cursor_recalculate (cursor, cancellable, &local_error)) {
g_warning ("Failed to recalculate the cursor value "
"after setting the search expression: %s",
local_error->message);
@@ -790,6 +797,7 @@ e_data_book_cursor_set_sexp (EDataBookCursor *cursor,
* @count: a positive or negative amount of contacts to try and fetch
* @results: (out) (allow-none) (element-type utf8) (transfer full):
* A return location to store the results, or %NULL if %E_BOOK_CURSOR_STEP_FETCH is not specified in %flags
+ * @cancellable: (allow-none): A #GCancellable
* @error: (out) (allow-none): return location for a #GError, or %NULL
*
* Steps @cursor through it's sorted query by a maximum of @count contacts
@@ -829,6 +837,7 @@ e_data_book_cursor_step (EDataBookCursor *cursor,
EBookCursorOrigin origin,
gint count,
GSList **results,
+ GCancellable *cancellable,
GError **error)
{
gint retval;
@@ -852,6 +861,7 @@ e_data_book_cursor_step (EDataBookCursor *cursor,
origin,
count,
results,
+ cancellable,
error);
g_object_unref (cursor);
@@ -868,6 +878,7 @@ e_data_book_cursor_step (EDataBookCursor *cursor,
* @cursor: an #EDataBookCursor
* @index: the alphabetic index
* @locale: the locale in which @index is expected to be a valid alphabetic index
+ * @cancellable: (allow-none): A #GCancellable
* @error: (out) (allow-none): return location for a #GError, or %NULL
*
* Sets the @cursor position to an
@@ -892,6 +903,7 @@ gboolean
e_data_book_cursor_set_alphabetic_index (EDataBookCursor *cursor,
gint index,
const gchar *locale,
+ GCancellable *cancellable,
GError **error)
{
GError *local_error = NULL;
@@ -908,7 +920,7 @@ e_data_book_cursor_set_alphabetic_index (EDataBookCursor *cursor,
error);
/* We already set the new cursor value, we can't fail anymore so just fire a warning */
- if (!e_data_book_cursor_recalculate (cursor, &local_error)) {
+ if (!e_data_book_cursor_recalculate (cursor, cancellable, &local_error)) {
g_warning ("Failed to recalculate the cursor value "
"after setting the alphabetic index: %s",
local_error->message);
@@ -931,6 +943,7 @@ e_data_book_cursor_set_alphabetic_index (EDataBookCursor *cursor,
/**
* e_data_book_cursor_recalculate:
* @cursor: an #EDataBookCursor
+ * @cancellable: (allow-none): A #GCancellable
* @error: (out) (allow-none): return location for a #GError, or %NULL
*
* Recalculates the cursor's total and position, this is meant
@@ -944,6 +957,7 @@ e_data_book_cursor_set_alphabetic_index (EDataBookCursor *cursor,
*/
gboolean
e_data_book_cursor_recalculate (EDataBookCursor *cursor,
+ GCancellable *cancellable,
GError **error)
{
gint total = 0;
@@ -964,6 +978,7 @@ e_data_book_cursor_recalculate (EDataBookCursor *cursor,
success = (* E_DATA_BOOK_CURSOR_GET_CLASS (cursor)->get_position) (cursor,
&total,
&position,
+ cancellable,
error);
g_object_unref (cursor);
@@ -977,6 +992,7 @@ e_data_book_cursor_recalculate (EDataBookCursor *cursor,
* e_data_book_cursor_load_locale:
* @cursor: an #EDataBookCursor
* @locale: (out) (allow-none): return location for the locale
+ * @cancellable: (allow-none): A #GCancellable
* @error: (out) (allow-none): return location for a #GError, or %NULL
*
* Load the current locale setting from the cursor's underlying database.
@@ -993,6 +1009,7 @@ e_data_book_cursor_recalculate (EDataBookCursor *cursor,
gboolean
e_data_book_cursor_load_locale (EDataBookCursor *cursor,
gchar **locale,
+ GCancellable *cancellable,
GError **error)
{
EDataBookCursorPrivate *priv;
@@ -1023,12 +1040,12 @@ e_data_book_cursor_load_locale (EDataBookCursor *cursor,
if (e_data_book_cursor_step (cursor, NULL,
E_BOOK_CURSOR_STEP_MOVE,
E_BOOK_CURSOR_ORIGIN_BEGIN,
- 0, NULL, &local_error) < 0) {
+ 0, NULL, cancellable, &local_error) < 0) {
g_warning ("Error resetting cursor position after locale change: %s",
local_error->message);
g_clear_error (&local_error);
} else if (!e_data_book_cursor_recalculate (E_DATA_BOOK_CURSOR (cursor),
- &local_error)) {
+ cancellable, &local_error)) {
g_warning ("Error recalculating cursor position after locale change: %s",
local_error->message);
g_clear_error (&local_error);
@@ -1067,19 +1084,7 @@ e_data_book_cursor_contact_added (EDataBookCursor *cursor,
priv = cursor->priv;
- if (!data_book_cursor_compare_contact (cursor, contact, &comparison, &matches_sexp)) {
- GError *error = NULL;
-
- /* Comparisons not supported, must recalculate entirely */
- if (!e_data_book_cursor_recalculate (cursor, &error)) {
- g_warning ("Failed to recalculate the cursor value "
- "after a contact was added: %s",
- error->message);
- g_clear_error (&error);
- }
-
- return;
- }
+ comparison = data_book_cursor_compare_contact (cursor, contact, &matches_sexp);
/* The added contact doesn't match the cursor search expression, no need
* to change the position & total values
@@ -1125,19 +1130,7 @@ e_data_book_cursor_contact_removed (EDataBookCursor *cursor,
priv = cursor->priv;
- if (!data_book_cursor_compare_contact (cursor, contact, &comparison, &matches_sexp)) {
- GError *error = NULL;
-
- /* Comparisons not supported, must recalculate entirely */
- if (!e_data_book_cursor_recalculate (cursor, &error)) {
- g_warning ("Failed to recalculate the cursor value "
- "after a contact was added: %s",
- error->message);
- g_clear_error (&error);
- }
-
- return;
- }
+ comparison = data_book_cursor_compare_contact (cursor, contact, &matches_sexp);
/* The removed contact did not match the cursor search expression, no need
* to change the position & total values
diff --git a/addressbook/libedata-book/e-data-book-cursor.h b/addressbook/libedata-book/e-data-book-cursor.h
index 8d938b5..6836411 100644
--- a/addressbook/libedata-book/e-data-book-cursor.h
+++ b/addressbook/libedata-book/e-data-book-cursor.h
@@ -83,6 +83,7 @@ typedef gboolean (*EDataBookCursorSetSexpFunc) (EDataBookCursor *cursor,
* @count: a positive or negative amount of contacts to try and fetch
* @results: (out) (allow-none) (element-type utf8) (transfer full):
* A return location to store the results, or %NULL if %E_BOOK_CURSOR_STEP_FETCH is not specified in %flags
+ * @cancellable: (allow-none): A #GCancellable
* @error: (out) (allow-none): return location for a #GError, or %NULL
*
* Method type for #EDataBookCursorClass.step()
@@ -115,6 +116,7 @@ typedef gint (*EDataBookCursorStepFunc) (EDataBookCursor *cursor,
EBookCursorOrigin origin,
gint count,
GSList **results,
+ GCancellable *cancellable,
GError **error);
/**
@@ -148,6 +150,7 @@ typedef gboolean (*EDataBookCursorSetAlphabetIndexFunc) (EDataBookCursor *cu
* @cursor: an #EDataBookCursor
* @total: (out): The total number of contacts matching @cursor's query expression
* @position: (out): The current position of @cursor in it's result list
+ * @cancellable: (allow-none): A #GCancellable
* @error: (out) (allow-none): return location for a #GError, or %NULL
*
* Method type for #EDataBookCursorClass.get_position()
@@ -181,6 +184,7 @@ typedef gboolean (*EDataBookCursorSetAlphabetIndexFunc) (EDataBookCursor *cu
typedef gboolean (*EDataBookCursorGetPositionFunc) (EDataBookCursor *cursor,
gint *total,
gint *position,
+ GCancellable *cancellable,
GError **error);
/**
@@ -191,15 +195,12 @@ typedef gboolean (*EDataBookCursorGetPositionFunc) (EDataBookCursor *cursor,
*
* Method type for #EDataBookCursorClass.compare_contact()
*
- * Cursor implementations should implement this in order to compare a
+ * Cursor implementations must implement this in order to compare a
* contact with the current cursor state.
*
* This is called when the addressbook backends notify active cursors
* that the addressbook has been modified with e_data_book_cursor_contact_added() and
- * e_data_book_cursor_contact_removed(). Comparing the changed contact details is usually
- * much less of an intensive operation than calling #EDataBookCursorClass.get_position(),
- * however if this method is left unimplemented then #EDataBookCursorClass.get_position()
- * will be used in it's place to recalculate the cursor position and total from scratch.
+ * e_data_book_cursor_contact_removed().
*
* Returns: A value that is less than, equal to, or greater than zero if @contact is found,
* respectively, to be less than, to match, or be greater than the current value of @cursor.
@@ -283,6 +284,7 @@ gint e_data_book_cursor_get_total (EDataBookCurso
gint e_data_book_cursor_get_position (EDataBookCursor *cursor);
gboolean e_data_book_cursor_set_sexp (EDataBookCursor *cursor,
const gchar *sexp,
+ GCancellable *cancellable,
GError **error);
gint e_data_book_cursor_step (EDataBookCursor *cursor,
const gchar *revision_guard,
@@ -290,15 +292,19 @@ gint e_data_book_cursor_step (EDataBookCurso
EBookCursorOrigin origin,
gint count,
GSList **results,
+ GCancellable *cancellable,
GError **error);
gboolean e_data_book_cursor_set_alphabetic_index (EDataBookCursor *cursor,
gint index,
const gchar *locale,
+ GCancellable *cancellable,
GError **error);
gboolean e_data_book_cursor_recalculate (EDataBookCursor *cursor,
+ GCancellable *cancellable,
GError **error);
gboolean e_data_book_cursor_load_locale (EDataBookCursor *cursor,
gchar **locale,
+ GCancellable *cancellable,
GError **error);
void e_data_book_cursor_contact_added (EDataBookCursor *cursor,
EContact *contact);
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