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examples: Cancel verify operation on Ctrl+C

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This makes it easier to do basic testing of cancellation paths in the
drivers.
This commit is contained in:
Benjamin Berg 2020-04-20 17:46:14 +02:00 committed by Marco Trevisan
parent a651b65401
commit d2402309ee
1 changed files with 28 additions and 7 deletions
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29
examples/verify.c
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@ -23,6 +23,7 @@
#include <stdio.h> #include <stdio.h>
#include <libfprint/fprint.h> #include <libfprint/fprint.h>
#include <glib-unix.h>
#include "storage.h" #include "storage.h"
#include "utilities.h" #include "utilities.h"
@ -30,6 +31,8 @@
typedef struct _VerifyData typedef struct _VerifyData
{ {
GMainLoop *loop; GMainLoop *loop;
GCancellable *cancellable;
unsigned int sigint_handler;
FpFinger finger; FpFinger finger;
int ret_value; int ret_value;
} VerifyData; } VerifyData;
@ -37,6 +40,8 @@ typedef struct _VerifyData
static void static void
verify_data_free (VerifyData *verify_data) verify_data_free (VerifyData *verify_data)
{ {
g_clear_handle_id (&verify_data->sigint_handler, g_source_remove);
g_clear_object (&verify_data->cancellable);
g_main_loop_unref (verify_data->loop); g_main_loop_unref (verify_data->loop);
g_free (verify_data); g_free (verify_data);
} }
@ -196,7 +201,7 @@ on_list_completed (FpDevice *dev, GAsyncResult *res, gpointer user_data)
fp_print_get_description (verify_print)); fp_print_get_description (verify_print));
g_print ("Print loaded. Time to verify!\n"); g_print ("Print loaded. Time to verify!\n");
fp_device_verify (dev, verify_print, NULL, fp_device_verify (dev, verify_print, verify_data->cancellable,
on_match_cb, verify_data, NULL, on_match_cb, verify_data, NULL,
(GAsyncReadyCallback) on_verify_completed, (GAsyncReadyCallback) on_verify_completed,
verify_data); verify_data);
@ -250,7 +255,7 @@ start_verification (FpDevice *dev, VerifyData *verify_data)
} }
g_print ("Print loaded. Time to verify!\n"); g_print ("Print loaded. Time to verify!\n");
fp_device_verify (dev, verify_print, NULL, fp_device_verify (dev, verify_print, verify_data->cancellable,
NULL, NULL, NULL, NULL, NULL, NULL,
(GAsyncReadyCallback) on_verify_completed, (GAsyncReadyCallback) on_verify_completed,
verify_data); verify_data);
@ -276,6 +281,16 @@ on_device_opened (FpDevice *dev, GAsyncResult *res, void *user_data)
start_verification (dev, verify_data); start_verification (dev, verify_data);
} }
static gboolean
sigint_cb (void *user_data)
{
VerifyData *verify_data = user_data;
g_cancellable_cancel (verify_data->cancellable);
return G_SOURCE_CONTINUE;
}
int int
main (void) main (void)
{ {
@ -306,8 +321,14 @@ main (void)
verify_data = g_new0 (VerifyData, 1); verify_data = g_new0 (VerifyData, 1);
verify_data->ret_value = EXIT_FAILURE; verify_data->ret_value = EXIT_FAILURE;
verify_data->loop = g_main_loop_new (NULL, FALSE); verify_data->loop = g_main_loop_new (NULL, FALSE);
verify_data->cancellable = g_cancellable_new ();
fp_device_open (dev, NULL, (GAsyncReadyCallback) on_device_opened, verify_data->sigint_handler = g_unix_signal_add_full (G_PRIORITY_HIGH,
SIGINT,
sigint_cb,
verify_data,
NULL);
fp_device_open (dev, verify_data->cancellable,
(GAsyncReadyCallback) on_device_opened,
verify_data); verify_data);
g_main_loop_run (verify_data->loop); g_main_loop_run (verify_data->loop);