1 files changed, 381 insertions, 0 deletions

diff --git a/src/stream/test_stream_local_halfclose.c b/src/stream/test_stream_local_halfclose.c
new file mode 100644
index 000000000..44ae5787a
--- /dev/null
+++ b/src/stream/test_stream_local_halfclose.c
@@ -0,0 +1,381 @@
+/*
+     This file is part of GNUnet.
+     (C) 2011, 2012 Christian Grothoff (and other contributing authors)
+
+     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 3, 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
+     General Public License for more details.
+
+     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.
+*/
+
+/**
+ * @file stream/test_stream_local_halfclose.c
+ * @brief Stream API testing between local peers with half closed connections
+ * @author Sree Harsha Totakura
+ */
+
+#include <string.h>
+#include <sys/socket.h>         /* For SHUT_RD, SHUT_WR */
+
+#include "platform.h"
+#include "gnunet_util_lib.h"
+#include "gnunet_mesh_service.h"
+#include "gnunet_stream_lib.h"
+
+#define VERBOSE 1
+
+/**
+ * Structure for holding peer's sockets and IO Handles
+ */
+struct PeerData
+{
+  /**
+   * Peer's stream socket
+   */
+  struct GNUNET_STREAM_Socket *socket;
+
+  /**
+   * Peer's io handle
+   */
+  struct GNUNET_STREAM_IOHandle *io_handle;
+
+  /**
+   * Bytes the peer has written
+   */
+  unsigned int bytes_wrote;
+
+  /**
+   * Byte the peer has read
+   */
+  unsigned int bytes_read;
+};
+
+static struct GNUNET_OS_Process *arm_pid;
+static struct PeerData peer1;
+static struct PeerData peer2;
+static struct GNUNET_STREAM_ListenSocket *peer2_listen_socket;
+
+static GNUNET_SCHEDULER_TaskIdentifier abort_task;
+static GNUNET_SCHEDULER_TaskIdentifier test_task;
+static GNUNET_SCHEDULER_TaskIdentifier read_task;
+
+static char *data = "ABCD";
+static int result;
+
+/**
+ * Shutdown nicely
+ */
+static void
+do_shutdown (void *cls, const struct GNUNET_SCHEDULER_TaskContext *tc)
+{
+  GNUNET_STREAM_close (peer1.socket);
+  GNUNET_STREAM_close (peer2.socket);
+  GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, "test: shutdown\n");
+  if (0 != abort_task)
+  {
+    GNUNET_SCHEDULER_cancel (abort_task);
+  }
+  GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, "test: arm\n");
+  if (0 != GNUNET_OS_process_kill (arm_pid, SIGTERM))
+  {
+    GNUNET_log_strerror (GNUNET_ERROR_TYPE_WARNING, "kill");
+  }
+  GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, "test: Wait\n");
+  GNUNET_assert (GNUNET_OK == GNUNET_OS_process_wait (arm_pid));
+  GNUNET_OS_process_close (arm_pid);
+}
+
+
+/**
+ * Something went wrong and timed out. Kill everything and set error flag
+ */
+static void
+do_abort (void *cls, const struct GNUNET_SCHEDULER_TaskContext *tc)
+{
+  GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, "test: ABORT\n");
+  if (0 != test_task)
+  {
+    GNUNET_SCHEDULER_cancel (test_task);
+  }
+  if (0 != read_task)
+    {
+      GNUNET_SCHEDULER_cancel (read_task);
+    }
+  result = GNUNET_SYSERR;
+  abort_task = 0;
+  do_shutdown (cls, tc);
+}
+
+
+/**
+ * The write completion function; called upon writing some data to stream or
+ * upon error
+ *
+ * @param cls the closure from GNUNET_STREAM_write/read
+ * @param status the status of the stream at the time this function is called
+ * @param size the number of bytes read or written
+ */
+void write_completion (void *cls,
+                       enum GNUNET_STREAM_Status status,
+                       size_t size)
+{
+  struct PeerData *peer;
+
+  peer = (struct PeerData *) cls;
+  GNUNET_assert (GNUNET_STREAM_OK == status);
+  GNUNET_assert (size < strlen (data));
+  peer->bytes_wrote += size;
+
+  if (peer->bytes_wrote < strlen(data)) /* Have more data to send */
+    {
+      peer->io_handle = GNUNET_STREAM_write (peer->socket,
+                                             (void *) data,
+                                             strlen(data) - peer->bytes_wrote,
+                                             GNUNET_TIME_relative_multiply
+                                             (GNUNET_TIME_UNIT_SECONDS, 5),
+                                             &write_completion,
+                                             cls);
+      GNUNET_assert (NULL != peer->io_handle);
+    }
+  else
+    {
+      if (&peer1 == peer)   /* Peer1 has finished writing; should read now */
+        {
+          peer->io_handle = GNUNET_STREAM_read ((struct GNUNET_STREAM_Socket *)
+                                                peer->socket,
+                                                GNUNET_TIME_relative_multiply
+                                                (GNUNET_TIME_UNIT_SECONDS, 5),
+                                                &input_processor,
+                                                cls);
+          GNUNET_assert (NULL!=peer->io_handle);
+        }
+    }
+}
+
+
+/**
+ * Function executed after stream has been established
+ *
+ * @param cls the closure from GNUNET_STREAM_open
+ * @param socket socket to use to communicate with the other side (read/write)
+ */
+static void 
+stream_open_cb (void *cls,
+                struct GNUNET_STREAM_Socket *socket)
+{
+  struct PeerData *peer;
+
+  peer = (struct PeerData *) cls;
+  peer->bytes_wrote = 0;
+  GNUNET_assert (socket == peer1.socket);
+  GNUNET_assert (socket == peer->socket);
+  peer->io_handle = GNUNET_STREAM_write (peer->socket, /* socket */
+                                         (void *) data, /* data */
+                                         strlen(data),
+                                         GNUNET_TIME_relative_multiply
+                                         (GNUNET_TIME_UNIT_SECONDS, 5),
+                                         &write_completion,
+                                         cls);
+  GNUNET_assert (NULL != peer->io_handle);
+}
+
+
+/**
+ * Input processor
+ *
+ * @param cls the closure from GNUNET_STREAM_write/read
+ * @param status the status of the stream at the time this function is called
+ * @param data traffic from the other side
+ * @param size the number of bytes available in data read 
+ * @return number of bytes of processed from 'data' (any data remaining should be
+ *         given to the next time the read processor is called).
+ */
+static size_t
+input_processor (void *cls,
+                 enum GNUNET_STREAM_Status status,
+                 const void *input_data,
+                 size_t size)
+{
+  struct PeerData *peer;
+
+  peer = (struct PeerData *) cls;
+
+  /* Peer1 is expected to read when it first finishes writing */
+  if (peer == &peer1)
+    {
+      /* since p2 closed write */
+      GNUNET_assert (GNUNET_STREAM_SHUTDOWN == status);
+      /* Test passed; shutdown now */
+      GNUNET_SCHEDULER_add_now (&do_shutdown, NULL);
+      return 0;
+    }
+
+  GNUNET_assert (GNUNET_STERAM_OK == status);
+  GNUNET_assert (size < strlen (data));
+  GNUNET_assert (strncmp ((const char *) data + peer->bytes_read, 
+                          (const char *) input_data,
+                          size));
+  peer->bytes_read += size;
+  
+  if (peer->bytes_read < strlen (data))
+    {
+      peer->io_handle = GNUNET_STREAM_read ((struct GNUNET_STREAM_Socket *)
+                                            peer->socket,
+                                            GNUNET_TIME_relative_multiply
+                                            (GNUNET_TIME_UNIT_SECONDS, 5),
+                                            &input_processor,
+                                            cls);
+      GNUNET_assert (NULL != peer->io_handle);
+    }
+ 
+  return size;
+}
+
+  
+/**
+ * Scheduler call back; to be executed when a new stream is connected
+ * Called from listen connect for peer2
+ */
+static void
+stream_read (void *cls, const struct GNUNET_SCHEDULER_TaskContext *tc)
+{
+  read_task = GNUNET_SCHEDULER_NO_TASK;
+  GNUNET_assert (NULL != cls);
+  peer2.bytes_read = 0;
+  GNUNET_STREAM_listen_close (peer2_listen_socket); /* Close listen socket */
+  /* Close the stream for writing */
+  GNUNET_STREAM_shutdown ((struct GNUNET_STREAM_Socket *) cls,
+                          SHUT_WR);
+  peer2.io_handle = GNUNET_STREAM_read ((struct GNUNET_STREAM_Socket *) cls,
+                                        GNUNET_TIME_relative_multiply
+                                        (GNUNET_TIME_UNIT_SECONDS, 5),
+                                        &input_processor,
+                                        (void *) &peer2);
+  GNUNET_assert (NULL != peer2.io_handle);
+}
+
+
+/**
+ * Functions of this type are called upon new stream connection from other peers
+ *
+ * @param cls the closure from GNUNET_STREAM_listen
+ * @param socket the socket representing the stream
+ * @param initiator the identity of the peer who wants to establish a stream
+ *            with us
+ * @return GNUNET_OK to keep the socket open, GNUNET_SYSERR to close the
+ *             stream (the socket will be invalid after the call)
+ */
+static int
+stream_listen_cb (void *cls,
+           struct GNUNET_STREAM_Socket *socket,
+           const struct GNUNET_PeerIdentity *initiator)
+{
+  GNUNET_assert (NULL != socket);
+  GNUNET_assert (NULL == initiator);   /* Local peer=NULL? */
+  GNUNET_assert (socket != peer1.socket);
+
+  peer2.socket = socket;
+  read_task = GNUNET_SCHEDULER_add_now (&stream_read, (void *) socket);
+  return GNUNET_OK;
+}
+
+
+/**
+ * Testing function
+ */
+static void
+test (void *cls, const struct GNUNET_SCHEDULER_TaskContext *tc)
+{
+  test_task = GNUNET_SCHEDULER_NO_TASK;
+
+  /* Connect to stream library */
+  peer1.socket = GNUNET_STREAM_open (NULL,         /* Null for local peer? */
+                                     10,           /* App port */
+                                     &stream_open_cb,
+                                     (void *) &peer1);
+  GNUNET_assert (NULL != peer1.socket);
+  peer2_listen_socket = GNUNET_STREAM_listen (10 /* App port */
+                                              &stream_listen_cb,
+                                              NULL);
+  GNUNET_assert (NULL != peer2_listen_socket);
+                  
+}
+
+/**
+ * Initialize framework and start test
+ */
+static void
+run (void *cls, char *const *args, const char *cfgfile,
+     const struct GNUNET_CONFIGURATION_Handle *cfg)
+{
+   GNUNET_log_setup ("test_stream_local",
+#if VERBOSE
+                    "DEBUG",
+#else
+                    "WARNING",
+#endif
+                    NULL);
+   arm_pid =
+     GNUNET_OS_start_process (NULL, NULL, "gnunet-service-arm",
+                              "gnunet-service-arm",
+#if VERBOSE_ARM
+                              "-L", "DEBUG",
+#endif
+                              "-c", "test_stream_local.conf", NULL);
+
+   abort_task =
+     GNUNET_SCHEDULER_add_delayed (GNUNET_TIME_relative_multiply
+                                   (GNUNET_TIME_UNIT_SECONDS, 20), &do_abort,
+                                    NULL);
+
+   test_task = GNUNET_SCHEDULER_add_now (&test, (void *) cfg);
+
+}
+
+/**
+ * Main function
+ */
+int main (int argc, char **argv)
+{
+  int ret;
+
+  char *const argv2[] = { "test-stream-local",
+                          "-c", "test_stream.conf",
+#if VERBOSE
+                          "-L", "DEBUG",
+#endif
+                          NULL
+  };
+  
+  struct GNUNET_GETOPT_CommandLineOption options[] = {
+    GNUNET_GETOPT_OPTION_END
+  };
+  
+  ret =
+      GNUNET_PROGRAM_run ((sizeof (argv2) / sizeof (char *)) - 1, argv2,
+                          "test-stream-local", "nohelp", options, &run, NULL);
+
+  if (GNUNET_OK != ret)
+  {
+    GNUNET_log (GNUNET_ERROR_TYPE_WARNING, "run failed with error code %d\n",
+                ret);
+    return 1;
+  }
+  if (GNUNET_SYSERR == result)
+  {
+    GNUNET_log (GNUNET_ERROR_TYPE_WARNING, "test failed\n");
+    return 1;
+  }
+  GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, "test ok\n");
+  return 0;
+}