implement exponential back-off cool down for ARM process restarts
[oweals/gnunet.git] / src / arm / test_arm_api.c
index 5cb7cdafdc3cdb119b99ab353460092d2be3ae3e..0449c41d4a2479bb2a93390818af8f757772c5f0 100644 (file)
@@ -1,6 +1,6 @@
 /*
      This file is part of GNUnet.
-     (C) 2009, 2011 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
 
      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 START_ARM GNUNET_YES
-
-#define START_TIMEOUT GNUNET_TIME_relative_multiply (GNUNET_TIME_UNIT_MILLISECONDS, 1500)
+#define LOG(...) GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, __VA_ARGS__)
 
 #define TIMEOUT GNUNET_TIME_relative_multiply (GNUNET_TIME_UNIT_SECONDS, 15)
 
@@ -40,88 +34,110 @@ static const struct GNUNET_CONFIGURATION_Handle *cfg;
 
 static struct GNUNET_ARM_Handle *arm;
 
+static struct GNUNET_ARM_Operation *op;
+
 static int ok = 1;
 
 static int phase = 0;
 
+
 static void
-arm_stop_cb (void *cls, struct GNUNET_ARM_Handle *h, enum GNUNET_ARM_RequestStatus status, const char *servicename, enum GNUNET_ARM_Result result)
+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_STOPPING);
+  GNUNET_break (result == GNUNET_ARM_RESULT_STOPPED);
   GNUNET_break (phase == 6);
   phase++;
-  FPRINTF (stderr, "Sent 'STOP' request for arm to ARM %s\n", (status == GNUNET_ARM_REQUEST_SENT_OK) ? "successfully" : "unsuccessfully");
+  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, struct GNUNET_ARM_Handle *h, enum GNUNET_ARM_RequestStatus status, const char *servicename, enum GNUNET_ARM_Result result)
+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);
-  FPRINTF (stderr, "Sent 'STOP' request for resolver to ARM %s\n", (status == GNUNET_ARM_REQUEST_SENT_OK) ? "successfully" : "unsuccessfully");
+  LOG ("Sent 'STOP' request for resolver to ARM %s\n",
+       (status == GNUNET_ARM_REQUEST_SENT_OK) ? "successfully" : "unsuccessfully");
   phase++;
-#if START_ARM
-  GNUNET_ARM_request_service_stop (arm, "arm", TIMEOUT, arm_stop_cb, NULL);
-#else
-  arm_stop_cb (NULL, GNUNET_ARM_STATUS_SENT_OK, "arm", GNUNET_ARM_SERVICE_STOPPING);
-  arm_conn (NULL, GNUNET_NO, GNUNET_NO);
-#endif
+  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)
+dns_notify (void *cls,
+            const struct sockaddr *addr,
+            socklen_t addrlen)
 {
   if (addr == NULL)
     {
       /* (4), resolver should finish resolving localhost */
       GNUNET_break (phase == 4);
       phase++;
-      FPRINTF (stderr, "%s", "Finished resolving localhost\n");
+      LOG ("Finished resolving localhost\n");
       if (ok != 0)
         ok = 2;
-      GNUNET_ARM_request_service_stop (arm, "resolver", TIMEOUT, resolver_stop_cb, NULL);
+      GNUNET_assert (NULL == op);
+      op = GNUNET_ARM_request_service_stop (arm,
+                                            "resolver",
+                                            &resolver_stop_cb,
+                                            NULL);
       return;
     }
   /* (3), resolver should resolve localhost */
   GNUNET_break (phase == 3);
-  FPRINTF (stderr, "%s", "Resolved localhost\n");
+  LOG ("Resolved localhost\n");
   phase++;
   GNUNET_break (addr != NULL);
   ok = 0;
 }
 
+
 static void
-resolver_start_cb (void *cls, struct GNUNET_ARM_Handle *h, enum GNUNET_ARM_RequestStatus status, const char *servicename, enum GNUNET_ARM_Result result)
+resolver_start_cb (void *cls,
+                  enum GNUNET_ARM_RequestStatus status,
+                  enum GNUNET_ARM_Result result)
 {
+  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);
-  FPRINTF (stderr, "Sent 'START' request for resolver to ARM %s\n", (status == GNUNET_ARM_REQUEST_SENT_OK) ? "successfully" : "unsuccessfully");
+  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
-trigger_disconnect (void *cls, const struct GNUNET_SCHEDULER_TaskContext *tc)
-{
-  GNUNET_ARM_disconnect ((struct GNUNET_ARM_Handle *) cls);
+  GNUNET_RESOLVER_ip_get ("localhost",
+                          AF_INET,
+                          TIMEOUT,
+                          &dns_notify, NULL);
 }
 
 
-void
-arm_conn (void *cls, struct GNUNET_ARM_Handle *arm, unsigned char connected, unsigned char error)
+static void
+arm_conn (void *cls,
+         int connected)
 {
-  if (GNUNET_YES == error)
+  if (GNUNET_SYSERR == connected)
   {
     GNUNET_log (GNUNET_ERROR_TYPE_ERROR,
                _("Fatal error initializing ARM API.\n"));
@@ -129,47 +145,38 @@ arm_conn (void *cls, struct GNUNET_ARM_Handle *arm, unsigned char connected, uns
     GNUNET_assert (0);
     return;
   }
-  if (connected)
+  if (GNUNET_YES == connected)
   {
     /* (1), arm connection should be established */
-    FPRINTF (stderr, "%s", "Connected to ARM\n");
+    LOG ("Connected to ARM\n");
     GNUNET_break (phase == 1);
     phase++;
-    GNUNET_ARM_request_service_start (arm, "resolver", GNUNET_OS_INHERIT_STD_OUT_AND_ERR, START_TIMEOUT, resolver_start_cb, NULL);
+    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) */
-    FPRINTF (stderr, "%s", "Disconnected from ARM\n");
+    LOG ("Disconnected from ARM\n");
     GNUNET_break (phase == 7);
     if (phase != 7)
       ok = 3;
     else if (ok == 1)
       ok = 0;
-    GNUNET_SCHEDULER_add_now (trigger_disconnect, arm);
   }
 }
 
-void
-srv_status (void *cls, const char *service, enum GNUNET_ARM_ServiceStatus status)
-{
-  FPRINTF (stderr, "Service %s is %u\n", service, status);
-  switch (phase)
-  {
-  default:
-    FPRINTF (stderr, "Unexpectedly got status %u for service %s\n", status,
-             service);
-    GNUNET_break (0);
-    ok = 2;
-#if START_ARM
-    GNUNET_ARM_request_service_stop (arm, "arm", TIMEOUT, NULL, NULL);
-#endif
-  }
-}
 
 static void
-arm_start_cb (void *cls, struct GNUNET_ARM_Handle *h, enum GNUNET_ARM_RequestStatus status, const char *servicename, enum GNUNET_ARM_Result result)
+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).
@@ -177,44 +184,53 @@ arm_start_cb (void *cls, struct GNUNET_ARM_Handle *h, enum GNUNET_ARM_RequestSta
    */
   GNUNET_break (status == GNUNET_ARM_REQUEST_SENT_OK);
   GNUNET_break (phase == 0);
-  FPRINTF (stderr, "Sent 'START' request for arm to ARM %s\n", (status == GNUNET_ARM_REQUEST_SENT_OK) ? "successfully" : "unsuccessfully");
+  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
-task (void *cls, char *const *args, const char *cfgfile,
-      const struct GNUNET_CONFIGURATION_Handle *c)
+do_shutdown (void *cls)
 {
-  char *armconfig;
-  cfg = c;
-  if (NULL != cfgfile)
+  if (NULL != op)
   {
-    if (GNUNET_OK !=
-        GNUNET_CONFIGURATION_get_value_filename (cfg, "arm", "CONFIG",
-                                              &armconfig))
-    {
-      GNUNET_CONFIGURATION_set_value_string ((struct GNUNET_CONFIGURATION_Handle
-                                              *) cfg, "arm", "CONFIG",
-                                             cfgfile);
-    }
-    else
-      GNUNET_free (armconfig);
+    GNUNET_ARM_operation_cancel (op);
+    op = NULL;
+  }
+  if (NULL != arm)
+  {
+    GNUNET_ARM_disconnect (arm);
+    arm = NULL;
   }
-  arm = GNUNET_ARM_alloc (cfg);
-  GNUNET_ARM_connect (arm, arm_conn, NULL);
-#if START_ARM
-  GNUNET_ARM_request_service_start (arm, "arm", GNUNET_OS_INHERIT_STD_OUT_AND_ERR, START_TIMEOUT, arm_start_cb, NULL);
-#else
-  arm_start_cb (NULL, arm, GNUNET_ARM_REQUEST_SENT_OK, "arm", GNUNET_ARM_RESULT_STARTING);
-  arm_conn (NULL, GNUNET_YES, GNUNET_NO);
-#endif
 }
 
 
+static void
+task (void *cls,
+      char *const *args,
+      const char *cfgfile,
+      const struct GNUNET_CONFIGURATION_Handle *c)
+{
+  cfg = c;
+  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",
@@ -224,6 +240,9 @@ check ()
   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,
@@ -231,18 +250,4 @@ check ()
   return ok;
 }
 
-int
-main (int argc, char *argv[])
-{
-  int ret;
-
-
-  GNUNET_log_setup ("test-arm-api",
-                   "WARNING",
-                   NULL);
-  ret = check ();
-
-  return ret;
-}
-
 /* end of test_arm_api.c */