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device: Implement suspend/resume methods

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The assumption here is that in most cases, we will just cancel any
ongoing operation. However, if the device choses to implement
suspend/resume handling and it returns success, then operations will not
be cancelled.

Note that suspend/resume requests cannot be cancelled.

Closes: #256
This commit is contained in:
Benjamin Berg
2021-04-23 15:55:05 +02:00
parent 968331c383
commit 43336a204f
5 changed files with 560 additions and 25 deletions
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23
libfprint/fp-device.h
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@@ -239,6 +239,16 @@ void fp_device_close (FpDevice *device,
GAsyncReadyCallback callback,
gpointer user_data);
void fp_device_suspend (FpDevice *device,
GCancellable *cancellable,
GAsyncReadyCallback callback,
gpointer user_data);
void fp_device_resume (FpDevice *device,
GCancellable *cancellable,
GAsyncReadyCallback callback,
gpointer user_data);
void fp_device_enroll (FpDevice *device,
FpPrint *template_print,
GCancellable *cancellable,
@@ -294,6 +304,12 @@ gboolean fp_device_open_finish (FpDevice *device,
gboolean fp_device_close_finish (FpDevice *device,
GAsyncResult *result,
GError **error);
gboolean fp_device_suspend_finish (FpDevice *device,
GAsyncResult *result,
GError **error);
gboolean fp_device_resume_finish (FpDevice *device,
GAsyncResult *result,
GError **error);
FpPrint *fp_device_enroll_finish (FpDevice *device,
GAsyncResult *result,
GError **error);
@@ -362,6 +378,13 @@ GPtrArray * fp_device_list_prints_sync (FpDevice *device,
gboolean fp_device_clear_storage_sync (FpDevice *device,
GCancellable *cancellable,
GError **error);
gboolean fp_device_suspend_sync (FpDevice *device,
GCancellable *cancellable,
GError **error);
gboolean fp_device_resume_sync (FpDevice *device,
GCancellable *cancellable,
GError **error);
/* Deprecated functions */
G_DEPRECATED_FOR (fp_device_get_features)
gboolean fp_device_supports_identify (FpDevice *device);