1 files changed, 294 insertions, 0 deletions

diff --git a/src/lib/util/test_scheduler.c b/src/lib/util/test_scheduler.c
new file mode 100644
index 000000000..4573518fd
--- /dev/null
+++ b/src/lib/util/test_scheduler.c
@@ -0,0 +1,294 @@
+/*
+     This file is part of GNUnet.
+     Copyright (C) 2009 GNUnet e.V.
+
+     GNUnet is free software: you can redistribute it and/or modify it
+     under the terms of the GNU Affero General Public License as published
+     by the Free Software Foundation, either version 3 of the License,
+     or (at your option) any later version.
+
+     GNUnet is distributed in the hope that it will be useful, but
+     WITHOUT ANY WARRANTY; without even the implied warranty of
+     MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+     Affero General Public License for more details.
+
+     You should have received a copy of the GNU Affero General Public License
+     along with this program.  If not, see <http://www.gnu.org/licenses/>.
+
+     SPDX-License-Identifier: AGPL3.0-or-later
+ */
+/**
+ * @file util/test_scheduler.c
+ * @brief tests for the scheduler
+ */
+
+#include "platform.h"
+#include "gnunet_util_lib.h"
+
+
+static struct GNUNET_DISK_PipeHandle *p;
+
+static const struct GNUNET_DISK_FileHandle *fds[2];
+
+static struct GNUNET_SCHEDULER_Task *never_run_task;
+
+
+static void
+task2 (void *cls)
+{
+  int *ok = cls;
+
+  /* t3 should be ready (albeit with lower priority) */
+  GNUNET_assert (1 ==
+                 GNUNET_SCHEDULER_get_load (GNUNET_SCHEDULER_PRIORITY_COUNT));
+  GNUNET_assert (2 == *ok);
+  (*ok) = 3;
+}
+
+
+static void
+task3 (void *cls)
+{
+  int *ok = cls;
+
+  GNUNET_assert (3 == *ok);
+  (*ok) = 4;
+}
+
+
+static void
+taskWrt (void *cls)
+{
+  static char c;
+  int *ok = cls;
+  const struct GNUNET_SCHEDULER_TaskContext *tc;
+
+  tc = GNUNET_SCHEDULER_get_task_context ();
+  GNUNET_assert (6 == *ok);
+  GNUNET_assert (GNUNET_NETWORK_fdset_handle_isset (tc->write_ready, fds[1]));
+  (*ok) = 7;
+  GNUNET_assert (1 == GNUNET_DISK_file_write (fds[1], &c, 1));
+}
+
+
+static void
+taskNeverRun (void *cls)
+{
+  GNUNET_assert (0);
+}
+
+
+static void
+taskLastRd (void *cls)
+{
+  int *ok = cls;
+
+  GNUNET_assert (8 == *ok);
+  (*ok) = 0;
+}
+
+
+static void
+taskLastSig (void *cls)
+{
+  int *ok = cls;
+
+  GNUNET_SCHEDULER_cancel (never_run_task);
+  GNUNET_assert (9 == *ok);
+  (*ok) = 0;
+}
+
+
+static void
+taskLastShutdown (void *cls)
+{
+  int *ok = cls;
+
+  GNUNET_assert (10 == *ok);
+  (*ok) = 0;
+}
+
+
+static void
+taskRd (void *cls)
+{
+  static char c;
+  int *ok = cls;
+  const struct GNUNET_SCHEDULER_TaskContext *tc;
+
+  tc = GNUNET_SCHEDULER_get_task_context ();
+  GNUNET_assert (7 == *ok);
+  GNUNET_assert (GNUNET_NETWORK_fdset_handle_isset (tc->read_ready, fds[0]));
+  GNUNET_assert (1 == GNUNET_DISK_file_read (fds[0], &c, 1));
+  (*ok) = 8;
+  GNUNET_SCHEDULER_add_shutdown (&taskLastRd,
+                                 cls);
+  GNUNET_SCHEDULER_shutdown ();
+}
+
+
+static void
+task4 (void *cls)
+{
+  int *ok = cls;
+
+  GNUNET_assert (4 == *ok);
+  (*ok) = 6;
+  p = GNUNET_DISK_pipe (GNUNET_DISK_PF_NONE);
+  GNUNET_assert (NULL != p);
+  fds[0] = GNUNET_DISK_pipe_handle (p, GNUNET_DISK_PIPE_END_READ);
+  fds[1] = GNUNET_DISK_pipe_handle (p, GNUNET_DISK_PIPE_END_WRITE);
+  GNUNET_SCHEDULER_add_read_file (GNUNET_TIME_UNIT_FOREVER_REL,
+                                  fds[0],
+                                  &taskRd,
+                                  cls);
+  GNUNET_SCHEDULER_add_write_file (GNUNET_TIME_UNIT_FOREVER_REL,
+                                   fds[1],
+                                   &taskWrt,
+                                   cls);
+}
+
+
+static void
+task1 (void *cls)
+{
+  int *ok = cls;
+
+  GNUNET_assert (1 == *ok);
+  (*ok) = 2;
+  GNUNET_SCHEDULER_add_now (&task3, cls);
+  GNUNET_SCHEDULER_add_with_priority (GNUNET_SCHEDULER_PRIORITY_UI,
+                                      &task2,
+                                      cls);
+  GNUNET_SCHEDULER_add_delayed (GNUNET_TIME_UNIT_SECONDS,
+                                &task4,
+                                cls);
+}
+
+
+/**
+ * Main method, starts scheduler with task1,
+ * checks that "ok" is correct at the end.
+ */
+static int
+check ()
+{
+  int ok;
+
+  GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
+              "[Check scheduling]\n");
+  ok = 1;
+  GNUNET_SCHEDULER_run (&task1, &ok);
+  return ok;
+}
+
+
+static void
+taskShutdown (void *cls)
+{
+  int *ok = cls;
+
+  GNUNET_assert (1 == *ok);
+  *ok = 10;
+  GNUNET_SCHEDULER_add_shutdown (&taskLastShutdown, cls);
+  GNUNET_SCHEDULER_shutdown ();
+}
+
+
+/**
+ * Main method, starts scheduler with task1,
+ * checks that "ok" is correct at the end.
+ */
+static int
+checkShutdown ()
+{
+  int ok;
+
+  GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
+              "[Check shutdown]\n");
+  ok = 1;
+  GNUNET_SCHEDULER_run (&taskShutdown, &ok);
+  return ok;
+}
+
+
+static void
+taskSig (void *cls)
+{
+  int *ok = cls;
+
+  GNUNET_assert (1 == *ok);
+  *ok = 9;
+  GNUNET_SCHEDULER_add_shutdown (&taskLastSig, cls);
+  never_run_task =
+    GNUNET_SCHEDULER_add_delayed (GNUNET_TIME_relative_multiply (
+                                    GNUNET_TIME_UNIT_SECONDS, 5),
+                                  &taskNeverRun,
+                                  NULL);
+  GNUNET_break (0 == kill (getpid (),
+                           GNUNET_TERM_SIG));
+}
+
+
+/**
+ * Main method, starts scheduler with task1,
+ * checks that "ok" is correct at the end.
+ */
+static int
+checkSignal (void)
+{
+  int ok;
+
+  GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
+              "[Check signal handling]\n");
+  ok = 1;
+  GNUNET_SCHEDULER_run (&taskSig, &ok);
+  return ok;
+}
+
+
+static void
+taskCancel (void *cls)
+{
+  int *ok = cls;
+
+  GNUNET_assert (1 == *ok);
+  *ok = 0;
+  GNUNET_SCHEDULER_cancel (GNUNET_SCHEDULER_add_now (&taskNeverRun, NULL));
+}
+
+
+/**
+ * Main method, starts scheduler with task1,
+ * checks that "ok" is correct at the end.
+ */
+static int
+checkCancel ()
+{
+  int ok;
+
+  GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
+              "[Check task cancellation]\n");
+  ok = 1;
+  GNUNET_SCHEDULER_run (&taskCancel, &ok);
+  return ok;
+}
+
+
+int
+main (int argc, char *argv[])
+{
+  int ret = 0;
+
+  GNUNET_log_setup ("test_scheduler", "WARNING", NULL);
+  ret += check ();
+  ret += checkCancel ();
+  ret += checkSignal ();
+  ret += checkShutdown ();
+  GNUNET_DISK_pipe_close (p);
+
+  return ret;
+}
+
+
+/* end of test_scheduler.c */