implement exponential back-off cool down for ARM process restarts
[oweals/gnunet.git] / src / arm / test_arm_api.c
index 89f63d3ec590f0a8dd6f90b55529231db62d2d91..0449c41d4a2479bb2a93390818af8f757772c5f0 100644 (file)
@@ -1,10 +1,10 @@
 /*
      This file is part of GNUnet.
-     (C) 2009 Christian Grothoff (and other contributing authors)
+     Copyright (C) 2009, 2011, 2016 GNUnet e.V.
 
      GNUnet is free software; you can redistribute it and/or modify
      it under the terms of the GNU General Public License as published
-     by the Free Software Foundation; either version 2, or (at your
+     by the Free Software Foundation; either version 3, or (at your
      option) any later version.
 
      GNUnet is distributed in the hope that it will be useful, but
 
      You should have received a copy of the GNU General Public License
      along with GNUnet; see the file COPYING.  If not, write to the
-     Free Software Foundation, Inc., 59 Temple Place - Suite 330,
-     Boston, MA 02111-1307, USA.
+     Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
+     Boston, MA 02110-1301, USA.
 */
 /**
  * @file arm/test_arm_api.c
  * @brief testcase for arm_api.c
  */
 #include "platform.h"
-#include "gnunet_common.h"
+#include "gnunet_util_lib.h"
 #include "gnunet_arm_service.h"
-#include "gnunet_client_lib.h"
-#include "gnunet_configuration_lib.h"
-#include "gnunet_getopt_lib.h"
-#include "gnunet_program_lib.h"
 #include "gnunet_resolver_service.h"
 
-#define VERBOSE GNUNET_NO
+#define LOG(...) GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, __VA_ARGS__)
 
-#define START_ARM GNUNET_YES
+#define TIMEOUT GNUNET_TIME_relative_multiply (GNUNET_TIME_UNIT_SECONDS, 15)
 
-#define TIMEOUT GNUNET_TIME_relative_multiply (GNUNET_TIME_UNIT_SECONDS, 10)
+static const struct GNUNET_CONFIGURATION_Handle *cfg;
 
-static struct GNUNET_SCHEDULER_Handle *sched;
+static struct GNUNET_ARM_Handle *arm;
 
-static struct GNUNET_CONFIGURATION_Handle *cfg;
+static struct GNUNET_ARM_Operation *op;
 
 static int ok = 1;
 
+static int phase = 0;
+
+
 static void
-dns_notify (void *cls, const struct sockaddr *addr, socklen_t addrlen)
+arm_stop_cb (void *cls,
+            enum GNUNET_ARM_RequestStatus status,
+            enum GNUNET_ARM_Result result)
+{
+  op = NULL;
+  /* (6), a stop request should be sent to ARM successfully */
+  /* ARM should report that it is stopping */
+  GNUNET_break (status == GNUNET_ARM_REQUEST_SENT_OK);
+  GNUNET_break (result == GNUNET_ARM_RESULT_STOPPED);
+  GNUNET_break (phase == 6);
+  phase++;
+  LOG ("Sent 'STOP' request for arm to ARM %s\n",
+       (status == GNUNET_ARM_REQUEST_SENT_OK) ? "successfully" : "unsuccessfully");
+  GNUNET_SCHEDULER_shutdown ();
+}
+
+
+static void
+resolver_stop_cb (void *cls,
+                 enum GNUNET_ARM_RequestStatus status,
+                  enum GNUNET_ARM_Result result)
+{
+  op = NULL;
+  /* (5), a stop request should be sent to ARM successfully.
+   * ARM should report that resolver is stopped.
+   */
+  GNUNET_break (status == GNUNET_ARM_REQUEST_SENT_OK);
+  GNUNET_break (result == GNUNET_ARM_RESULT_STOPPED);
+  GNUNET_break (phase == 5);
+  LOG ("Sent 'STOP' request for resolver to ARM %s\n",
+       (status == GNUNET_ARM_REQUEST_SENT_OK) ? "successfully" : "unsuccessfully");
+  phase++;
+  GNUNET_assert (NULL == op);
+  op = GNUNET_ARM_request_service_stop (arm,
+                                        "arm",
+                                        &arm_stop_cb,
+                                        NULL);
+}
+
+
+static void
+dns_notify (void *cls,
+            const struct sockaddr *addr,
+            socklen_t addrlen)
 {
   if (addr == NULL)
     {
-      GNUNET_assert (ok == 0);
-#if START_ARM
-      GNUNET_ARM_stop_service ("arm", cfg, sched, TIMEOUT, NULL, NULL);
-#endif
+      /* (4), resolver should finish resolving localhost */
+      GNUNET_break (phase == 4);
+      phase++;
+      LOG ("Finished resolving localhost\n");
+      if (ok != 0)
+        ok = 2;
+      GNUNET_assert (NULL == op);
+      op = GNUNET_ARM_request_service_stop (arm,
+                                            "resolver",
+                                            &resolver_stop_cb,
+                                            NULL);
       return;
     }
-  GNUNET_assert (addr != NULL);
+  /* (3), resolver should resolve localhost */
+  GNUNET_break (phase == 3);
+  LOG ("Resolved localhost\n");
+  phase++;
+  GNUNET_break (addr != NULL);
   ok = 0;
 }
 
 
 static void
-resolver_notify (void *cls, int success)
+resolver_start_cb (void *cls,
+                  enum GNUNET_ARM_RequestStatus status,
+                  enum GNUNET_ARM_Result result)
 {
-  GNUNET_assert (success == GNUNET_YES);
-  sleep (1);                    /* FIXME: that we need to do this is a problem... */
-  GNUNET_RESOLVER_ip_get (sched,
-                          cfg,
-                          "localhost", AF_INET, TIMEOUT, &dns_notify, NULL);
+  op = NULL;
+  /* (2), the start request for resolver should be sent successfully
+   * ARM should report that resolver service is starting.
+   */
+  GNUNET_assert (status == GNUNET_ARM_REQUEST_SENT_OK);
+  GNUNET_break (phase == 2);
+  GNUNET_break (result == GNUNET_ARM_RESULT_STARTING);
+  LOG ("Sent 'START' request for resolver to ARM %s\n",
+       (status == GNUNET_ARM_REQUEST_SENT_OK) ? "successfully" : "unsuccessfully");
+  phase++;
+  GNUNET_RESOLVER_ip_get ("localhost",
+                          AF_INET,
+                          TIMEOUT,
+                          &dns_notify, NULL);
 }
 
+
 static void
-arm_notify (void *cls, int success)
+arm_conn (void *cls,
+         int connected)
 {
-  GNUNET_assert (success == GNUNET_YES);
-#if START_ARM
-  sleep (1);                    /* FIXME: that we need to do this is a problem... */
-#endif
-  GNUNET_ARM_start_service ("resolver",
-                            cfg, sched, TIMEOUT, &resolver_notify, NULL);
+  if (GNUNET_SYSERR == connected)
+  {
+    GNUNET_log (GNUNET_ERROR_TYPE_ERROR,
+               _("Fatal error initializing ARM API.\n"));
+    GNUNET_SCHEDULER_shutdown ();
+    GNUNET_assert (0);
+    return;
+  }
+  if (GNUNET_YES == connected)
+  {
+    /* (1), arm connection should be established */
+    LOG ("Connected to ARM\n");
+    GNUNET_break (phase == 1);
+    phase++;
+    GNUNET_assert (NULL == op);
+    op = GNUNET_ARM_request_service_start (arm,
+                                           "resolver",
+                                           GNUNET_OS_INHERIT_STD_OUT_AND_ERR,
+                                           &resolver_start_cb,
+                                           NULL);
+  }
+  else
+  {
+    /* (7), ARM should stop (we disconnect from it) */
+    LOG ("Disconnected from ARM\n");
+    GNUNET_break (phase == 7);
+    if (phase != 7)
+      ok = 3;
+    else if (ok == 1)
+      ok = 0;
+  }
+}
+
+
+static void
+arm_start_cb (void *cls,
+             enum GNUNET_ARM_RequestStatus status,
+             enum GNUNET_ARM_Result result)
+{
+  op = NULL;
+  /* (0) The request should be "sent" successfully
+   * ("sent", because it isn't going anywhere, ARM API starts ARM service
+   * by itself).
+   * ARM API should report that ARM service is starting.
+   */
+  GNUNET_break (status == GNUNET_ARM_REQUEST_SENT_OK);
+  GNUNET_break (phase == 0);
+  LOG ("Sent 'START' request for arm to ARM %s\n",
+       (status == GNUNET_ARM_REQUEST_SENT_OK) ? "successfully" : "unsuccessfully");
+  GNUNET_break (result == GNUNET_ARM_RESULT_STARTING);
+  phase++;
+}
+
+
+static void
+do_shutdown (void *cls)
+{
+  if (NULL != op)
+  {
+    GNUNET_ARM_operation_cancel (op);
+    op = NULL;
+  }
+  if (NULL != arm)
+  {
+    GNUNET_ARM_disconnect (arm);
+    arm = NULL;
+  }
 }
 
 
 static void
 task (void *cls,
-      struct GNUNET_SCHEDULER_Handle *s,
       char *const *args,
-      const char *cfgfile, struct GNUNET_CONFIGURATION_Handle *c)
+      const char *cfgfile,
+      const struct GNUNET_CONFIGURATION_Handle *c)
 {
   cfg = c;
-  sched = s;
-#if START_ARM
-  GNUNET_ARM_start_service ("arm", cfg, sched, TIMEOUT, &arm_notify, NULL);
-#else
-  arm_notify (NULL, GNUNET_YES);
-#endif
+  arm = GNUNET_ARM_connect (cfg,
+                            &arm_conn,
+                            NULL);
+  if (NULL == arm)
+    return;
+  GNUNET_SCHEDULER_add_shutdown (&do_shutdown,
+                                 NULL);
+  op = GNUNET_ARM_request_service_start (arm,
+                                         "arm",
+                                         GNUNET_OS_INHERIT_STD_OUT_AND_ERR,
+                                         &arm_start_cb,
+                                         NULL);
 }
 
 
-
-static int
-check ()
+int
+main (int argc, char *argvx[])
 {
   char *const argv[] = {
     "test-arm-api",
     "-c", "test_arm_api_data.conf",
-#if VERBOSE
-    "-L", "DEBUG",
-#endif
     NULL
   };
   struct GNUNET_GETOPT_CommandLineOption options[] = {
     GNUNET_GETOPT_OPTION_END
   };
+  GNUNET_log_setup ("test-arm-api",
+                   "WARNING",
+                   NULL);
   GNUNET_assert (GNUNET_OK ==
-                 GNUNET_PROGRAM_run ((sizeof (argv) / sizeof (char *)) - 1,
-                                     argv,
-                                     "test-arm-api",
-                                     "nohelp", options, &task, NULL));
+                GNUNET_PROGRAM_run ((sizeof (argv) / sizeof (char *)) - 1,
+                                    argv, "test-arm-api", "nohelp", options,
+                                    &task, NULL));
   return ok;
 }
 
-int
-main (int argc, char *argv[])
-{
-  int ret;
-
-
-  GNUNET_log_setup ("test-arm-api",
-#if VERBOSE
-                    "DEBUG",
-#else
-                    "WARNING",
-#endif
-                    NULL);
-  ret = check ();
-
-  return ret;
-}
-
 /* end of test_arm_api.c */