indentation
[oweals/gnunet.git] / src / dht / test_dht_api.c
index 9c9fcb4d0aeb32695f91c5b927812b51161b4cf8..407e2279b292ea4d53034f3bb80c9f99d7aa3c57 100644 (file)
@@ -4,7 +4,7 @@
 
      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
 #include "gnunet_program_lib.h"
 #include "gnunet_scheduler_lib.h"
 #include "gnunet_dht_service.h"
+#include "gnunet_hello_lib.h"
 
-#define VERBOSE GNUNET_YES
+#define VERBOSE GNUNET_NO
 
-#define VERBOSE_ARM GNUNET_YES
+#define VERBOSE_ARM GNUNET_NO
 
 #define START_ARM GNUNET_YES
 
 /**
- * How long until we give up on transmitting the message?
+ * How long until we really give up on a particular testcase portion?
+ */
+#define TOTAL_TIMEOUT GNUNET_TIME_relative_multiply (GNUNET_TIME_UNIT_SECONDS, 600)
+
+/**
+ * How long until we give up on any particular operation (and retry)?
  */
-#define TIMEOUT GNUNET_TIME_relative_multiply (GNUNET_TIME_UNIT_SECONDS, 50)
+#define BASE_TIMEOUT GNUNET_TIME_relative_multiply (GNUNET_TIME_UNIT_SECONDS, 3)
 
 #define MTYPE 12345
 
+struct RetryContext
+{
+  /**
+   * When to really abort the operation.
+   */
+  struct GNUNET_TIME_Absolute real_timeout;
+
+  /**
+   * What timeout to set for the current attempt (increases)
+   */
+  struct GNUNET_TIME_Relative next_timeout;
+
+  /**
+   * The context of the peer we are dealing with.
+   */
+  struct PeerContext *peer_ctx;
+
+  /**
+   * The task identifier of the retry task, so it can be cancelled.
+   */
+  GNUNET_SCHEDULER_TaskIdentifier retry_task;
+
+};
+
 struct PeerContext
 {
   struct GNUNET_CONFIGURATION_Handle *cfg;
   struct GNUNET_DHT_Handle *dht_handle;
   struct GNUNET_PeerIdentity id;
+  struct GNUNET_DHT_GetHandle *get_handle;
+  struct GNUNET_DHT_FindPeerHandle *find_peer_handle;
+
 #if START_ARM
-  pid_t arm_pid;
+  struct GNUNET_OS_Process *arm_proc;
 #endif
 };
 
 static struct PeerContext p1;
 
-static struct GNUNET_SCHEDULER_Handle *sched;
+struct RetryContext retry_context;
+
 
 static int ok;
 
@@ -72,15 +106,13 @@ GNUNET_SCHEDULER_TaskIdentifier die_task;
 
 
 static void
-end ()
+end (void *cls, const struct GNUNET_SCHEDULER_TaskContext *tc)
 {
-  /* do work here */
-  GNUNET_SCHEDULER_cancel (sched, die_task);
-
-  GNUNET_DHT_disconnect (p1.dht_handle);
-
+  GNUNET_SCHEDULER_cancel (die_task);
   die_task = GNUNET_SCHEDULER_NO_TASK;
-  GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, "DHT disconnected, returning success!\n");
+  GNUNET_DHT_disconnect (p1.dht_handle);
+  GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
+              "DHT disconnected, returning success!\n");
   ok = 0;
 }
 
@@ -88,9 +120,11 @@ static void
 stop_arm (struct PeerContext *p)
 {
 #if START_ARM
-  if (0 != PLIBC_KILL (p->arm_pid, SIGTERM))
+  if (0 != GNUNET_OS_process_kill (p->arm_proc, SIGTERM))
     GNUNET_log_strerror (GNUNET_ERROR_TYPE_WARNING, "kill");
-  GNUNET_OS_process_wait (p->arm_pid);
+  GNUNET_OS_process_wait (p->arm_proc);
+  GNUNET_OS_process_close (p->arm_proc);
+  p->arm_proc = NULL;
 #endif
   GNUNET_CONFIGURATION_destroy (p->cfg);
 }
@@ -101,13 +135,257 @@ end_badly ()
 {
   /* do work here */
 #if VERBOSE
-  fprintf(stderr, "Ending on an unhappy note.\n");
+  fprintf (stderr, "Ending on an unhappy note.\n");
 #endif
 
+  if ((retry_context.peer_ctx != NULL) &&
+      (retry_context.peer_ctx->find_peer_handle != NULL))
+  {
+    GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, "Stopping find peer request!\n");
+    GNUNET_DHT_find_peer_stop (retry_context.peer_ctx->find_peer_handle);
+  }
+  if ((retry_context.peer_ctx != NULL) &&
+      (retry_context.peer_ctx->get_handle != NULL))
+  {
+    GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, "Stopping get request!\n");
+    GNUNET_DHT_get_stop (retry_context.peer_ctx->get_handle);
+  }
+  if (retry_context.retry_task != GNUNET_SCHEDULER_NO_TASK)
+    GNUNET_SCHEDULER_cancel (retry_context.retry_task);
   GNUNET_DHT_disconnect (p1.dht_handle);
-
   ok = 1;
-  return;
+}
+
+
+/**
+ * Signature of the main function of a task.
+ *
+ * @param cls closure
+ * @param tc context information (why was this task triggered now)
+ */
+void
+test_find_peer_stop (void *cls, const struct GNUNET_SCHEDULER_TaskContext *tc)
+{
+  struct PeerContext *peer = cls;
+
+  GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, "Called test_find_peer_stop!\n");
+  if ((tc->reason & GNUNET_SCHEDULER_REASON_TIMEOUT) != 0)
+  {
+    GNUNET_break (0);
+    GNUNET_SCHEDULER_cancel (die_task);
+    GNUNET_SCHEDULER_add_now (&end_badly, NULL);
+    return;
+  }
+
+  GNUNET_assert (peer->dht_handle != NULL);
+
+  GNUNET_DHT_find_peer_stop (peer->find_peer_handle);
+  peer->find_peer_handle = NULL;
+
+#if HAVE_MALICIOUS
+  GNUNET_DHT_set_malicious_getter (peer->dht_handle, GNUNET_TIME_UNIT_SECONDS,
+                                   NULL, NULL);
+  GNUNET_DHT_set_malicious_putter (peer->dht_handle, GNUNET_TIME_UNIT_SECONDS,
+                                   NULL, NULL);
+  GNUNET_DHT_set_malicious_dropper (peer->dht_handle, NULL, NULL);
+#endif
+  GNUNET_SCHEDULER_add_delayed (GNUNET_TIME_relative_multiply
+                                (GNUNET_TIME_UNIT_SECONDS, 1), &end, &p1);
+}
+
+
+/**
+ * Iterator called on each result obtained from a find peer
+ * operation
+ *
+ * @param cls closure (NULL)
+ * @param peer the peer we learned about
+ * @param reply response
+ */
+void
+test_find_peer_processor (void *cls, const struct GNUNET_HELLO_Message *hello)
+{
+  struct RetryContext *retry_ctx = cls;
+  struct GNUNET_PeerIdentity peer;
+
+  if (GNUNET_OK == GNUNET_HELLO_get_id (hello, &peer))
+  {
+    GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
+                "test_find_peer_processor called (peer `%s'), stopping find peer request!\n",
+                GNUNET_i2s (&peer));
+
+    if (retry_ctx->retry_task != GNUNET_SCHEDULER_NO_TASK)
+    {
+      GNUNET_SCHEDULER_cancel (retry_ctx->retry_task);
+      retry_ctx->retry_task = GNUNET_SCHEDULER_NO_TASK;
+    }
+
+    GNUNET_SCHEDULER_add_continuation (&test_find_peer_stop, &p1,
+                                       GNUNET_SCHEDULER_REASON_PREREQ_DONE);
+  }
+  else
+  {
+    GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
+                "received find peer request, but hello_get_id failed!\n");
+  }
+
+}
+
+/**
+ * Retry the find_peer task on timeout. (Forward declaration)
+ *
+ * @param cls closure
+ * @param tc context information (why was this task triggered now?)
+ */
+void
+retry_find_peer_stop (void *cls, const struct GNUNET_SCHEDULER_TaskContext *tc);
+
+/**
+ * Retry the find_peer task on timeout.
+ *
+ * @param cls closure
+ * @param tc context information (why was this task triggered now)
+ */
+void
+retry_find_peer (void *cls, const struct GNUNET_SCHEDULER_TaskContext *tc)
+{
+  struct RetryContext *retry_ctx = cls;
+  GNUNET_HashCode hash;
+
+  memset (&hash, 42, sizeof (GNUNET_HashCode));
+
+  if (GNUNET_TIME_absolute_get_remaining (retry_ctx->real_timeout).rel_value >
+      0)
+  {
+    GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
+                "test_find_peer timed out, retrying!\n");
+    retry_ctx->next_timeout =
+        GNUNET_TIME_relative_multiply (retry_ctx->next_timeout, 2);
+    retry_ctx->peer_ctx->find_peer_handle =
+        GNUNET_DHT_find_peer_start (retry_ctx->peer_ctx->dht_handle,
+                                    retry_ctx->next_timeout, &hash,
+                                    GNUNET_DHT_RO_NONE,
+                                    &test_find_peer_processor, retry_ctx);
+  }
+  else
+  {
+    GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
+                "test_find_peer timed out for good, failing!\n");
+
+    retry_ctx->peer_ctx->find_peer_handle = NULL;
+  }
+
+  if (retry_ctx->peer_ctx->find_peer_handle == NULL)
+  {
+    GNUNET_break (0);
+    GNUNET_SCHEDULER_cancel (die_task);
+    GNUNET_SCHEDULER_add_now (&end_badly, &p1);
+    return;
+  }
+  retry_ctx->retry_task =
+      GNUNET_SCHEDULER_add_delayed (retry_ctx->next_timeout,
+                                    &retry_find_peer_stop, retry_ctx);
+}
+
+/**
+ * Retry the find_peer task on timeout.
+ *
+ * @param cls closure
+ * @param tc context information (why was this task triggered now?)
+ */
+void
+retry_find_peer_stop (void *cls, const struct GNUNET_SCHEDULER_TaskContext *tc)
+{
+  struct RetryContext *retry_ctx = cls;
+  GNUNET_HashCode hash;
+
+  memset (&hash, 42, sizeof (GNUNET_HashCode));
+
+  if (retry_ctx->peer_ctx->find_peer_handle != NULL)
+  {
+    GNUNET_DHT_find_peer_stop (retry_ctx->peer_ctx->find_peer_handle);
+    retry_ctx->peer_ctx->find_peer_handle = NULL;
+  }
+  GNUNET_SCHEDULER_add_now (&retry_find_peer, retry_ctx);
+}
+
+/**
+ * Entry point for test of find_peer functionality.
+ *
+ * @param cls closure
+ * @param tc context information (why was this task triggered now)
+ */
+void
+test_find_peer (void *cls, const struct GNUNET_SCHEDULER_TaskContext *tc)
+{
+  struct PeerContext *peer = cls;
+  GNUNET_HashCode hash;
+
+  memset (&hash, 42, sizeof (GNUNET_HashCode));
+
+  GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, "Called test_find_peer!\n");
+  GNUNET_assert (peer->dht_handle != NULL);
+
+  retry_context.real_timeout = GNUNET_TIME_relative_to_absolute (TOTAL_TIMEOUT);
+  retry_context.next_timeout = BASE_TIMEOUT;
+  retry_context.peer_ctx = peer;
+
+  peer->find_peer_handle
+      =
+      GNUNET_DHT_find_peer_start (peer->dht_handle, retry_context.next_timeout,
+                                  &hash, GNUNET_DHT_RO_DEMULTIPLEX_EVERYWHERE,
+                                  &test_find_peer_processor, &retry_context);
+
+  if (peer->find_peer_handle == NULL)
+  {
+    GNUNET_break (0);
+    GNUNET_SCHEDULER_cancel (die_task);
+    GNUNET_SCHEDULER_add_now (&end_badly, &p1);
+    return;
+  }
+  retry_context.retry_task =
+      GNUNET_SCHEDULER_add_delayed (retry_context.next_timeout,
+                                    &retry_find_peer_stop, &retry_context);
+}
+
+/**
+ * Signature of the main function of a task.
+ *
+ * @param cls closure
+ * @param tc context information (why was this task triggered now)
+ */
+void
+test_get_stop (void *cls, const struct GNUNET_SCHEDULER_TaskContext *tc)
+{
+  struct PeerContext *peer = cls;
+
+  GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, "Called test_get_stop!\n");
+  if ((tc->reason & GNUNET_SCHEDULER_REASON_TIMEOUT) != 0)
+  {
+    GNUNET_break (0);
+    GNUNET_SCHEDULER_cancel (die_task);
+    GNUNET_SCHEDULER_add_now (&end_badly, NULL);
+    return;
+  }
+  GNUNET_assert (peer->dht_handle != NULL);
+  GNUNET_DHT_get_stop (peer->get_handle);
+  peer->get_handle = NULL;
+  GNUNET_SCHEDULER_add_now (&test_find_peer, &p1);
+}
+
+void
+test_get_iterator (void *cls,
+                   struct GNUNET_TIME_Absolute exp,
+                   const GNUNET_HashCode * key,
+                   const struct GNUNET_PeerIdentity *const *get_path,
+                   const struct GNUNET_PeerIdentity *const *put_path,
+                   enum GNUNET_BLOCK_Type type, size_t size, const void *data)
+{
+  GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
+              "test_get_iterator called (we got a result), stopping get request!\n");
+
+  GNUNET_SCHEDULER_add_continuation (&test_get_stop, &p1,
+                                     GNUNET_SCHEDULER_REASON_PREREQ_DONE);
 }
 
 /**
@@ -116,19 +394,70 @@ end_badly ()
  * @param cls closure
  * @param tc context information (why was this task triggered now)
  */
-void test_get (void *cls,
-               const struct GNUNET_SCHEDULER_TaskContext * tc)
+void
+test_get (void *cls, const struct GNUNET_SCHEDULER_TaskContext *tc)
 {
   struct PeerContext *peer = cls;
   GNUNET_HashCode hash;
-  memset(&hash, 42, sizeof(GNUNET_HashCode));
 
-  peer->dht_handle = GNUNET_DHT_connect (sched, peer->cfg);
+  memset (&hash, 42, sizeof (GNUNET_HashCode));
+
+  GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, "Called test_get!\n");
+
   GNUNET_assert (peer->dht_handle != NULL);
+  retry_context.real_timeout = GNUNET_TIME_relative_to_absolute (TOTAL_TIMEOUT);
+  retry_context.next_timeout = BASE_TIMEOUT;
+
+  peer->get_handle =
+      GNUNET_DHT_get_start (peer->dht_handle,
+                            TOTAL_TIMEOUT,
+                            GNUNET_BLOCK_TYPE_TEST,
+                            &hash,
+                            DEFAULT_GET_REPLICATION,
+                            GNUNET_DHT_RO_NONE,
+                            NULL, 0, NULL, 0, &test_get_iterator, NULL);
+
+  if (peer->get_handle == NULL)
+  {
+    GNUNET_break (0);
+    GNUNET_SCHEDULER_cancel (die_task);
+    GNUNET_SCHEDULER_add_now (&end_badly, &p1);
+    return;
+  }
+
+  retry_context.peer_ctx = peer;
+}
+
+/**
+ * Signature of the main function of a task.
+ *
+ * @param cls closure
+ * @param tc context information (why was this task triggered now)
+ */
+void
+test_put (void *cls, const struct GNUNET_SCHEDULER_TaskContext *tc)
+{
+  struct PeerContext *peer = cls;
+  GNUNET_HashCode hash;
+  char *data;
+  size_t data_size = 42;
 
-  GNUNET_DHT_get_start(peer->dht_handle, 42, &hash, NULL, NULL);
+  memset (&hash, 42, sizeof (GNUNET_HashCode));
+  data = GNUNET_malloc (data_size);
+  memset (data, 43, data_size);
+  GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, "Called test_put!\n");
+  peer->dht_handle = GNUNET_DHT_connect (peer->cfg, 100);
 
-  GNUNET_SCHEDULER_add_delayed(sched, GNUNET_TIME_relative_multiply(GNUNET_TIME_UNIT_SECONDS, 10), &end, &p1);
+  GNUNET_assert (peer->dht_handle != NULL);
+
+  GNUNET_DHT_put (peer->dht_handle, &hash,
+                  DEFAULT_PUT_REPLICATION,
+                  GNUNET_DHT_RO_NONE,
+                  GNUNET_BLOCK_TYPE_TEST,
+                  data_size, data,
+                  GNUNET_TIME_relative_to_absolute (TOTAL_TIMEOUT),
+                  TOTAL_TIMEOUT, &test_get, &p1);
+  GNUNET_free (data);
 }
 
 static void
@@ -136,12 +465,12 @@ setup_peer (struct PeerContext *p, const char *cfgname)
 {
   p->cfg = GNUNET_CONFIGURATION_create ();
 #if START_ARM
-  p->arm_pid = GNUNET_OS_start_process (NULL, NULL, "gnunet-service-arm",
-                                        "gnunet-service-arm",
+  p->arm_proc = GNUNET_OS_start_process (NULL, NULL, "gnunet-service-arm",
+                                         "gnunet-service-arm",
 #if VERBOSE_ARM
-                                        "-L", "DEBUG",
+                                         "-L", "DEBUG",
 #endif
-                                        "-c", cfgname, NULL);
+                                         "-c", cfgname, NULL);
 #endif
   GNUNET_assert (GNUNET_OK == GNUNET_CONFIGURATION_load (p->cfg, cfgname));
 
@@ -149,20 +478,20 @@ setup_peer (struct PeerContext *p, const char *cfgname)
 
 static void
 run (void *cls,
-     struct GNUNET_SCHEDULER_Handle *s,
      char *const *args,
      const char *cfgfile, const struct GNUNET_CONFIGURATION_Handle *cfg)
 {
   GNUNET_assert (ok == 1);
   OKPP;
-  sched = s;
 
-  die_task = GNUNET_SCHEDULER_add_delayed (sched,
-      GNUNET_TIME_relative_multiply(GNUNET_TIME_UNIT_MINUTES, 1), &end_badly, NULL);
+  die_task = GNUNET_SCHEDULER_add_delayed (GNUNET_TIME_relative_multiply
+                                           (GNUNET_TIME_UNIT_MINUTES, 1),
+                                           &end_badly, NULL);
 
   setup_peer (&p1, "test_dht_api_peer1.conf");
 
-  GNUNET_SCHEDULER_add_delayed(sched, GNUNET_TIME_relative_multiply(GNUNET_TIME_UNIT_SECONDS, 2), &test_get, &p1);
+  GNUNET_SCHEDULER_add_delayed (GNUNET_TIME_relative_multiply
+                                (GNUNET_TIME_UNIT_SECONDS, 1), &test_put, &p1);
 }
 
 static int
@@ -184,8 +513,7 @@ check ()
 
   ok = 1;
   GNUNET_PROGRAM_run ((sizeof (argv) / sizeof (char *)) - 1,
-                      argv, "test-dht-api", "nohelp",
-                      options, &run, &ok);
+                      argv, "test-dht-api", "nohelp", options, &run, &ok);
   stop_arm (&p1);
   return ok;
 }
@@ -195,9 +523,6 @@ int
 main (int argc, char *argv[])
 {
   int ret;
-#ifdef MINGW
-  return GNUNET_SYSERR;
-#endif
 
   GNUNET_log_setup ("test-dht-api",
 #if VERBOSE
@@ -208,7 +533,7 @@ main (int argc, char *argv[])
                     NULL);
   ret = check ();
 
-  //GNUNET_DISK_directory_remove ("/tmp/test-gnunetd-dht-peer-1");
+  GNUNET_DISK_directory_remove ("/tmp/test-gnunetd-dht-peer-1");
 
   return ret;
 }