diff options
Diffstat (limited to 'src/lockmanager')
| -rw-r--r-- | src/lockmanager/Makefile.am | 68 | ||||
| -rw-r--r-- | src/lockmanager/Makefile.in | 933 | ||||
| -rw-r--r-- | src/lockmanager/gnunet-service-lockmanager.c | 899 | ||||
| -rw-r--r-- | src/lockmanager/lockmanager.conf.in | 13 | ||||
| -rw-r--r-- | src/lockmanager/lockmanager.h | 71 | ||||
| -rw-r--r-- | src/lockmanager/lockmanager_api.c | 677 | ||||
| -rw-r--r-- | src/lockmanager/test_lockmanager_api.c | 279 | ||||
| -rw-r--r-- | src/lockmanager/test_lockmanager_api.conf | 73 | ||||
| -rw-r--r-- | src/lockmanager/test_lockmanager_api_lockrelease.c | 301 | ||||
| -rw-r--r-- | src/lockmanager/test_lockmanager_api_servercrash.c | 326 |
10 files changed, 3640 insertions, 0 deletions
diff --git a/src/lockmanager/Makefile.am b/src/lockmanager/Makefile.am new file mode 100644 index 0000000..0fbc20b --- /dev/null +++ b/src/lockmanager/Makefile.am @@ -0,0 +1,68 @@ +INCLUDES = -I$(top_srcdir)/src/include + +if MINGW + WINFLAGS = -Wl,--no-undefined -Wl,--export-all-symbols +endif + +if USE_COVERAGE + AM_CFLAGS = --coverage -O0 + XLIB = -lgcov +endif + +pkgcfgdir= $(pkgdatadir)/config.d/ + +pkgcfg_DATA = \ + lockmanager.conf + +bin_PROGRAMS = \ + gnunet-service-lockmanager + +lib_LTLIBRARIES = \ + libgnunetlockmanager.la + +gnunet_service_lockmanager_SOURCES = \ + gnunet-service-lockmanager.c \ + lockmanager.h +gnunet_service_lockmanager_LDADD = \ + $(top_builddir)/src/util/libgnunetutil.la +gnunet_service_lockmanager_DEPENDENCIES = \ + $(top_builddir)/src/util/libgnunetutil.la + +libgnunetlockmanager_la_SOURCES = \ + lockmanager_api.c lockmanager.h +libgnunetlockmanager_la_LIBADD = \ + $(top_builddir)/src/util/libgnunetutil.la \ + $(XLIB) +libgnunetlockmanager_la_LDFLAGS = \ + $(GN_LIB_LDFLAGS) $(WINFLAGS) \ + -version-info 0:0:0 + +check_PROGRAMS = \ + test-lockmanager-api \ + test-lockmanager-api-lockrelease \ + test-lockmanager-api-servercrash + +EXTRA_DIST = \ + test_lockmanager_api.conf + +if ENABLE_TEST_RUN +TESTS = $(check_PROGRAMS) +endif + +test_lockmanager_api_SOURCES = \ + test_lockmanager_api.c +test_lockmanager_api_LDADD = \ + $(top_builddir)/src/util/libgnunetutil.la \ + libgnunetlockmanager.la + +test_lockmanager_api_lockrelease_SOURCES = \ + test_lockmanager_api_lockrelease.c +test_lockmanager_api_lockrelease_LDADD = \ + $(top_builddir)/src/util/libgnunetutil.la \ + libgnunetlockmanager.la + +test_lockmanager_api_servercrash_SOURCES = \ + test_lockmanager_api_servercrash.c +test_lockmanager_api_servercrash_LDADD = \ + $(top_builddir)/src/util/libgnunetutil.la \ + libgnunetlockmanager.la
\ No newline at end of file diff --git a/src/lockmanager/Makefile.in b/src/lockmanager/Makefile.in new file mode 100644 index 0000000..6a90407 --- /dev/null +++ b/src/lockmanager/Makefile.in @@ -0,0 +1,933 @@ +# Makefile.in generated by automake 1.11.1 from Makefile.am. +# @configure_input@ + +# Copyright (C) 1994, 1995, 1996, 1997, 1998, 1999, 2000, 2001, 2002, +# 2003, 2004, 2005, 2006, 2007, 2008, 2009 Free Software Foundation, +# Inc. +# This Makefile.in is free software; the Free Software Foundation +# gives unlimited permission to copy and/or distribute it, +# with or without modifications, as long as this notice is preserved. + +# This program is distributed in the hope that it will be useful, +# but WITHOUT ANY WARRANTY, to the extent permitted by law; without +# even the implied warranty of MERCHANTABILITY or FITNESS FOR A +# PARTICULAR PURPOSE. + +@SET_MAKE@ + + + +VPATH = @srcdir@ +pkgdatadir = $(datadir)/@PACKAGE@ +pkgincludedir = $(includedir)/@PACKAGE@ +pkglibdir = 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Otherwise a system limit (for SysV at least) may be exceeded. +.NOEXPORT: diff --git a/src/lockmanager/gnunet-service-lockmanager.c b/src/lockmanager/gnunet-service-lockmanager.c new file mode 100644 index 0000000..8ec9889 --- /dev/null +++ b/src/lockmanager/gnunet-service-lockmanager.c @@ -0,0 +1,899 @@ +/* + This file is part of GNUnet. + (C) 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 2, 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 lockmanager/gnunet-service-lockmanager.c + * @brief implementation of the LOCKMANAGER service + * @author Sree Harsha Totakura + */ + +#include "platform.h" +#include "gnunet_common.h" +#include "gnunet_container_lib.h" +#include "gnunet_protocols.h" +#include "gnunet_service_lib.h" +#include "gnunet_server_lib.h" + +#include "lockmanager.h" + + +#define LOG(kind,...) \ + GNUNET_log (kind, __VA_ARGS__) + +#define TIME_REL_MINS(min) \ + GNUNET_TIME_relative_multiply (GNUNET_TIME_UNIT_MINUTES, min) + +#define TIMEOUT TIME_REL_MINS(3) + + +/** + * Doubly linked list of clients having connections to us + */ +struct ClientList; + + +/** + * Doubly linked list of clients waiting for a lock + */ +struct WaitList +{ + /** + * The next client structure + */ + struct WaitList *next; + + /** + * The prev client structure + */ + struct WaitList *prev; + + /** + * Pointer to the client + */ + struct ClientList *cl_entry; +}; + + +/** + * Structure representing a Lock + */ +struct Lock +{ + /** + * List head of clients waiting for this lock + */ + struct WaitList *wl_head; + + /** + * List tail of clients waiting for this lock + */ + struct WaitList *wl_tail; + + /** + * The client which is currently holding this lock + */ + struct ClientList *cl_entry; + + /** + * The name of the locking domain this lock belongs to + */ + char *domain_name; + + /** + * The number of this lock + */ + uint32_t lock_num; +}; + + +/** + * A Lock element for a doubly linked list + */ +struct LockList +{ + /** + * The next element pointer + */ + struct LockList *next; + + /** + * Pointer to the previous element + */ + struct LockList *prev; + + /** + * Pointer to the Lock + */ + struct Lock *lock; +}; + + +/** + * Doubly linked list of clients having connections to us + */ +struct ClientList +{ + + /** + * The next client structure + */ + struct ClientList *next; + + /** + * The previous client structure + */ + struct ClientList *prev; + + /** + * Head of the doubly linked list of the currently held locks by this client + */ + struct LockList *ll_head; + + /** + * Tail of the doubly linked list of the currently held locks by this client + */ + struct LockList *ll_tail; + + /** + * Pointer to the client + */ + struct GNUNET_SERVER_Client *client; +}; + + +/** + * Structure for matching a lock + */ +struct LockMatch +{ + /** + * The matched LockingRequest entry; Should be NULL if no entry is found + */ + struct Lock *matched_entry; + + /** + * The locking domain name of the lock + */ + const char *domain_name; + + /** + * The lock number + */ + uint32_t lock_num; +}; + + +/** + * Map of lock-keys to the 'struct LockList' entry for the key. + */ +static struct GNUNET_CONTAINER_MultiHashMap *lock_map; + +/** + * Head of the doubly linked list of clients currently connected + */ +static struct ClientList *cl_head; + +/** + * Tail of the doubly linked list of clients currently connected + */ +static struct ClientList *cl_tail; + + +/** + * Get the key for the given lock in the 'lock_map'. + * + * @param domain_name + * @param lock_number + * @param key set to the key + */ +static void +get_key (const char *domain_name, + uint32_t lock_number, + struct GNUNET_HashCode *key) +{ + uint32_t *last_32; + + GNUNET_CRYPTO_hash (domain_name, + strlen (domain_name), + key); + last_32 = (uint32_t *) key; + *last_32 ^= lock_number; +} + + +/** + * Hashmap iterator for matching a lock + * + * @param cls the LockMatch structure + * @param key current key code + * @param value value in the hash map (struct Lock) + * @return GNUNET_YES if we should continue to + * iterate, + * GNUNET_NO if not. + */ +static int +match_iterator (void *cls, const GNUNET_HashCode *key, void *value) +{ + struct LockMatch *match = cls; + struct Lock *lock = value; + + if ( (match->lock_num == lock->lock_num) + && (0 == strcmp (match->domain_name, lock->domain_name)) ) + { + match->matched_entry = lock; + return GNUNET_NO; + } + return GNUNET_YES; +} + + +/** + * Function to search for a lock in the global lock hashmap + * + * @param domain_name the name of the locking domain + * @param lock_num the number of the lock + * @return the lock if found; NULL if not + */ +static struct Lock * +find_lock (const char *domain_name, + const uint32_t lock_num) + +{ + struct LockMatch match; + struct GNUNET_HashCode key; + + match.lock_num = lock_num; + match.domain_name = domain_name; + match.matched_entry = NULL; + get_key (domain_name, lock_num, &key); + GNUNET_CONTAINER_multihashmap_get_multiple (lock_map, + &key, + &match_iterator, + &match); + return match.matched_entry; +} + + +/** + * Adds a lock to the global lock hashmap + * + * @param domain_name the name of the lock's locking domain + * @param lock_num the lock number + * @return pointer to the lock structure which is added to lock map + */ +static struct Lock * +add_lock (const char *domain_name, + uint32_t lock_num) +{ + struct Lock *lock; + struct GNUNET_HashCode key; + size_t domain_name_len; + + lock = GNUNET_malloc (sizeof (struct Lock)); + domain_name_len = strlen (domain_name) + 1; + lock->domain_name = GNUNET_malloc (domain_name_len); + strncpy (lock->domain_name, domain_name, domain_name_len); + lock->lock_num = lock_num; + get_key (domain_name, lock_num, &key); + LOG (GNUNET_ERROR_TYPE_DEBUG, + "Adding a lock with num: %d and domain: %s to the lock map\n", + lock->lock_num, lock->domain_name); + GNUNET_CONTAINER_multihashmap_put (lock_map, + &key, + lock, + GNUNET_CONTAINER_MULTIHASHMAPOPTION_MULTIPLE); + return lock; +} + + +/** + * Removes a lock from the lock map. The WaitList of the lock should be empty + * + * @param lock the lock to remove + */ +static void +remove_lock (struct Lock *lock) +{ + struct GNUNET_HashCode key; + + GNUNET_assert (NULL == lock->wl_head); + get_key (lock->domain_name, + lock->lock_num, + &key); + LOG (GNUNET_ERROR_TYPE_DEBUG, + "Removing lock with num: %u, domain: %s from lock map\n", + lock->lock_num, lock->domain_name); + GNUNET_assert (GNUNET_YES == GNUNET_CONTAINER_multihashmap_remove + (lock_map, &key, lock)); + GNUNET_free (lock->domain_name); + GNUNET_free (lock); +} + + +/** + * Find the LockList entry corresponding to the given Lock in a ClientList + * entry + * + * @param cl_entry the ClientList entry whose lock list has to be searched + * @param lock the lock which has to be matched + * @return the matching LockList entry; NULL if no match is found + */ +static struct LockList * +cl_ll_find_lock (struct ClientList *cl_entry, + const struct Lock *lock) +{ + struct LockList *ll_entry; + + for (ll_entry = cl_entry->ll_head; + NULL != ll_entry; ll_entry = ll_entry->next) + { + if (lock == ll_entry->lock) + return ll_entry; + } + return NULL; +} + + +/** + * Function to append a lock to the lock list of a ClientList entry + * + * @param cl_entry the client which currently owns this lock + * @param lock the lock to be added to the cl_entry's lock list + */ +static void +cl_ll_add_lock (struct ClientList *cl_entry, + struct Lock *lock) +{ + struct LockList *ll_entry; + + ll_entry = GNUNET_malloc (sizeof (struct LockList)); + ll_entry->lock = lock; + LOG (GNUNET_ERROR_TYPE_DEBUG, + "Adding a lock with num: %u and domain: %s to lock list\n", + lock->lock_num, lock->domain_name); + GNUNET_CONTAINER_DLL_insert_tail (cl_entry->ll_head, + cl_entry->ll_tail, + ll_entry); +} + + +/** + * Function to delete a lock from the lock list of the given ClientList entry + * + * @param cl_entry the ClientList entry + * @param ll_entry the LockList entry to be deleted + */ +static void +cl_ll_remove_lock (struct ClientList *cl_entry, + struct LockList *ll_entry) +{ + LOG (GNUNET_ERROR_TYPE_DEBUG, + "Removing lock with num: %u, domain: %s from lock list of a client\n", + ll_entry->lock->lock_num, + ll_entry->lock->domain_name); + GNUNET_assert (NULL != cl_entry->ll_head); + GNUNET_CONTAINER_DLL_remove (cl_entry->ll_head, + cl_entry->ll_tail, + ll_entry); + GNUNET_free (ll_entry); +} + + +/** + * Find a WaitList entry in the waiting list of a lock + * + * @param lock the lock whose wait list has to be searched + * @param cl_entry the ClientList entry to be searched + * @return the WaitList entry matching the given cl_entry; NULL if not match + * was found + */ +static struct WaitList * +lock_wl_find (const struct Lock *lock, + const struct ClientList *cl_entry) +{ + struct WaitList *wl_entry; + + for (wl_entry = lock->wl_head; + NULL != wl_entry; + wl_entry = wl_entry->next) + { + if (cl_entry == wl_entry->cl_entry) + return wl_entry; + } + return NULL; +} + + +/** + * Add a client to the wait list of given lock + * + * @param lock the lock list entry of a lock + * @param cl_entry the client to queue for the lock's wait list + */ +static void +lock_wl_add_client (struct Lock *lock, + struct ClientList *cl_entry) +{ + struct WaitList *wl_entry; + + LOG (GNUNET_ERROR_TYPE_DEBUG, + "Adding a client to lock's wait list (lock num: %u, domain: %s)\n", + lock->lock_num, + lock->domain_name); + wl_entry = GNUNET_malloc (sizeof (struct WaitList)); + wl_entry->cl_entry = cl_entry; + GNUNET_CONTAINER_DLL_insert_tail (lock->wl_head, + lock->wl_tail, + wl_entry); +} + + +/** + * Remove an entry from the wait list of the given lock + * + * @param lock the lock + * @param wl_entry the wait list entry to be removed + */ +static void +lock_wl_remove (struct Lock *lock, + struct WaitList *wl_entry) +{ + LOG (GNUNET_ERROR_TYPE_DEBUG, + "Removing client from wait list of lock with num: %u, domain: %s\n", + lock->lock_num, lock->domain_name); + GNUNET_CONTAINER_DLL_remove (lock->wl_head, + lock->wl_tail, + wl_entry); + GNUNET_free (wl_entry); +} + + +/** + * Search for a client in the client list + * + * @param client the client to be searched for + * @return the ClientList entry; NULL if the client is not found + */ +static struct ClientList * +cl_find_client (const struct GNUNET_SERVER_Client *client) +{ + struct ClientList *current; + + for (current = cl_head; NULL != current; current = current->next) + if (client == current->client) + return current; + return NULL; +} + + +/** + * Append a client to the client list + * + * @param client the client to be appended to the list + * @return the client list entry which is added to the client list + */ +static struct ClientList * +cl_add_client (struct GNUNET_SERVER_Client *client) +{ + struct ClientList *new_client; + + LOG (GNUNET_ERROR_TYPE_DEBUG, + "Adding a client to the client list\n"); + new_client = GNUNET_malloc (sizeof (struct ClientList)); + GNUNET_SERVER_client_keep (client); + new_client->client = client; + GNUNET_CONTAINER_DLL_insert_tail (cl_head, + cl_tail, + new_client); + return new_client; +} + + +/** + * Delete the given client from the client list. The LockList should be empty + * + * @param cl_entry the client list entry to delete + */ +static void +cl_remove_client (struct ClientList *cl_entry) +{ + GNUNET_assert (NULL == cl_entry->ll_head); + LOG (GNUNET_ERROR_TYPE_DEBUG, + "Removing a client from the client list\n"); + GNUNET_SERVER_client_drop (cl_entry->client); + GNUNET_CONTAINER_DLL_remove (cl_head, + cl_tail, + cl_entry); + GNUNET_free (cl_entry); +} + + +/** + * Transmit notify for sending message to client + * + * @param cls the message to send + * @param size number of bytes available in buf + * @param buf where the callee should write the message + * @return number of bytes written to buf + */ +static size_t +transmit_notify (void *cls, size_t size, void *buf) +{ + struct GNUNET_LOCKMANAGER_Message *msg = cls; + uint16_t msg_size; + + if ((0 == size) || (NULL == buf)) + { + /* FIXME: Timed out -- requeue? */ + return 0; + } + msg_size = ntohs (msg->header.size); + GNUNET_assert (size >= msg_size); + memcpy (buf, msg, msg_size); + GNUNET_free (msg); + LOG (GNUNET_ERROR_TYPE_DEBUG, + "Message of size %u sent\n", msg_size); + return msg_size; +} + + +/** + * Send SUCCESS message to the client + * + * @param client the client to which the message has to be sent + * @param domain_name the locking domain of the successfully acquried lock + * @param lock_num the number of the successfully acquired lock + */ +static void +send_success_msg (struct GNUNET_SERVER_Client *client, + const char *domain_name, + int lock_num) +{ + struct GNUNET_LOCKMANAGER_Message *reply; + size_t domain_name_len; + uint16_t reply_size; + + domain_name_len = strlen (domain_name) + 1; + reply_size = sizeof (struct GNUNET_LOCKMANAGER_Message) + domain_name_len; + reply = GNUNET_malloc (reply_size); + reply->header.size = htons (reply_size); + reply->header.type = htons (GNUNET_MESSAGE_TYPE_LOCKMANAGER_SUCCESS); + reply->lock = htonl (lock_num); + strncpy ((char *) &reply[1], domain_name, domain_name_len); + LOG (GNUNET_ERROR_TYPE_DEBUG, + "Sending SUCCESS message for lock with num: %u, domain: %s\n", + lock_num, domain_name); + GNUNET_SERVER_notify_transmit_ready (client, + reply_size, + TIMEOUT, + &transmit_notify, + reply); +} + + +/** + * Handler for GNUNET_MESSAGE_TYPE_LOCKMANAGER_ACQUIRE + * + * @param cls NULL + * @param client the client sending this message + * @param message GNUNET_MESSAGE_TYPE_LOCKMANAGER_ACQUIRE message + */ +static void +handle_acquire (void *cls, + struct GNUNET_SERVER_Client *client, + const struct GNUNET_MessageHeader *message) +{ + const struct GNUNET_LOCKMANAGER_Message *request; + const char *domain_name; + struct Lock *lock; + struct ClientList *cl_entry; + uint32_t lock_num; + uint16_t msize; + + msize = htons (message->size); + if (msize <= sizeof (struct GNUNET_LOCKMANAGER_Message)) + { + GNUNET_break (0); + GNUNET_SERVER_receive_done (client, GNUNET_SYSERR); + return; + } + request = (struct GNUNET_LOCKMANAGER_Message *) message; + domain_name = (const char *) &request[1]; + msize -= sizeof (struct GNUNET_LOCKMANAGER_Message); + if ('\0' != domain_name[msize]) + { + GNUNET_break (0); + GNUNET_SERVER_receive_done (client, GNUNET_SYSERR); + return; + } + lock_num = ntohl (request->lock); + LOG (GNUNET_ERROR_TYPE_DEBUG, + "Received an ACQUIRE message for lock num: %u domain: %s\n", + lock_num, domain_name); + if (NULL == (cl_entry = cl_find_client (client))) + cl_entry = cl_add_client (client); /* Add client if not in client list */ + if (NULL != (lock = find_lock (domain_name,lock_num))) + { + if (lock->cl_entry == cl_entry) + { /* Client is requesting a lock it already owns */ + GNUNET_break (0); + GNUNET_SERVER_receive_done (client, GNUNET_SYSERR); + return; + } + lock_wl_add_client (lock, cl_entry); + cl_ll_add_lock (cl_entry, lock); + } + else /* Lock not present */ + { + lock = add_lock (domain_name, lock_num); + lock->cl_entry = cl_entry; + cl_ll_add_lock (cl_entry, lock); + send_success_msg (cl_entry->client, domain_name, lock_num); + } + GNUNET_SERVER_receive_done (client, GNUNET_OK); +} + + +/** + * This function gives the lock to the first client in the wait list of the + * lock. If no clients are currently waiting for this lock, the lock is then + * destroyed. + * + * @param lock the lock which has to be processed for release + */ +static void +process_lock_release (struct Lock *lock) +{ + struct WaitList *wl_entry; + + LOG (GNUNET_ERROR_TYPE_DEBUG, + "Processing lock release for lock with num: %u, domain: %s\n", + lock->lock_num, lock->domain_name); + wl_entry = lock->wl_head; + if (NULL == wl_entry) + { + remove_lock (lock); /* No clients waiting for this lock - delete */ + return; + } + LOG (GNUNET_ERROR_TYPE_DEBUG, + "Giving lock to a client from wait list\n"); + lock->cl_entry = wl_entry->cl_entry; + lock_wl_remove(lock, wl_entry); + send_success_msg (lock->cl_entry->client, + lock->domain_name, + lock->lock_num); + return; +} + + +/** + * Handle for GNUNET_MESSAGE_TYPE_LOCKMANAGER_RELEASE + * + * @param cls NULL + * @param client the client sending this message + * @param message the LOCKMANAGER_RELEASE message + */ +static void +handle_release (void *cls, + struct GNUNET_SERVER_Client *client, + const struct GNUNET_MessageHeader *message) +{ + const struct GNUNET_LOCKMANAGER_Message *request; + struct ClientList *cl_entry; + struct WaitList *wl_entry; + struct LockList *ll_entry; + const char *domain_name; + struct Lock *lock; + uint32_t lock_num; + uint16_t msize; + + msize = ntohs (message->size); + if (msize <= sizeof (struct GNUNET_LOCKMANAGER_Message)) + { + GNUNET_break (0); + GNUNET_SERVER_receive_done (client, GNUNET_SYSERR); + return; + } + request = (const struct GNUNET_LOCKMANAGER_Message *) message; + domain_name = (const char *) &request[1]; + msize -= sizeof (struct GNUNET_LOCKMANAGER_Message); + if ('\0' != domain_name[msize-1]) + { + GNUNET_break (0); + GNUNET_SERVER_receive_done (client, GNUNET_SYSERR); + return; + + + } + lock_num = ntohl (request->lock); + LOG (GNUNET_ERROR_TYPE_DEBUG, + "Received RELEASE message for lock with num: %d, domain: %s\n", + lock_num, domain_name); + if (NULL == (cl_entry = cl_find_client (client))) + { + GNUNET_break(0); + GNUNET_SERVER_receive_done (client, GNUNET_SYSERR); + return; + } + lock = find_lock (domain_name, lock_num); + if(NULL == lock) + { + GNUNET_break (0); + GNUNET_SERVER_receive_done (client, GNUNET_SYSERR); + return; + } + if (NULL == (ll_entry = cl_ll_find_lock (cl_entry, lock))) + { + GNUNET_break (0); + GNUNET_SERVER_receive_done (client, GNUNET_SYSERR); + return; + } + cl_ll_remove_lock (cl_entry, ll_entry); + if (cl_entry == lock->cl_entry) + { + process_lock_release (lock); + GNUNET_SERVER_receive_done (client, GNUNET_OK); + return; + } + /* remove 'client' from wait list (check that it is not there...) */ + if (NULL != (wl_entry = lock_wl_find (lock, cl_entry))) + { + lock_wl_remove (lock, wl_entry); + } + GNUNET_SERVER_receive_done (client, GNUNET_OK); +} + + +/** + * Callback for client disconnect + * + * @param cls NULL + * @param client the client which has disconnected + */ +static void +client_disconnect_cb (void *cls, struct GNUNET_SERVER_Client *client) +{ + struct ClientList *cl_entry; + struct LockList *ll_entry; + struct Lock *lock; + + if (NULL == client) + return; + LOG (GNUNET_ERROR_TYPE_DEBUG, + "A client has been disconnected -- freeing its locks and resources\n"); + cl_entry = cl_find_client (client); + if (NULL == cl_entry) + return; + while (NULL != (ll_entry = cl_entry->ll_head)) + { + lock = ll_entry->lock; + cl_ll_remove_lock (cl_entry, ll_entry); + process_lock_release (lock); + } + cl_remove_client (cl_entry); +} + + +/** + * Hashmap Iterator to delete lock entries in hash map + * + * @param cls NULL + * @param key current key code + * @param value value in the hash map + * @return GNUNET_YES if we should continue to + * iterate, + * GNUNET_NO if not. + */ +static int +lock_delete_iterator (void *cls, + const GNUNET_HashCode * key, + void *value) +{ + struct Lock *lock = value; + + GNUNET_assert (NULL != lock); + while (NULL != lock->wl_head) + { + lock_wl_remove (lock, lock->wl_head); + } + GNUNET_assert (GNUNET_YES == + GNUNET_CONTAINER_multihashmap_remove(lock_map, + key, + lock)); + GNUNET_free (lock->domain_name); + GNUNET_free (lock); + return GNUNET_YES; +} + + +/** + * Task to clean up and shutdown nicely + * + * @param cls NULL + * @param tc the TaskContext from scheduler + */ +static void +shutdown_task (void *cls, + const struct GNUNET_SCHEDULER_TaskContext *tc) +{ + LOG (GNUNET_ERROR_TYPE_DEBUG, + "Shutting down lock manager\n"); + /* Clean the global ClientList */ + while (NULL != cl_head) + { + while (NULL != cl_head->ll_head) /* Clear the LockList */ + { + cl_ll_remove_lock (cl_head, cl_head->ll_head); + } + cl_remove_client (cl_head); + } + /* Clean the global hash table */ + GNUNET_CONTAINER_multihashmap_iterate (lock_map, + &lock_delete_iterator, + NULL); + GNUNET_assert (0 == GNUNET_CONTAINER_multihashmap_size (lock_map)); + GNUNET_CONTAINER_multihashmap_destroy (lock_map); +} + + +/** + * Lock manager setup + * + * @param cls closure + * @param server the initialized server + * @param cfg configuration to use + */ +static void +lockmanager_run (void *cls, + struct GNUNET_SERVER_Handle * server, + const struct GNUNET_CONFIGURATION_Handle *cfg) +{ + static const struct GNUNET_SERVER_MessageHandler message_handlers[] = + { + {&handle_acquire, NULL, GNUNET_MESSAGE_TYPE_LOCKMANAGER_ACQUIRE, 0}, + {&handle_release, NULL, GNUNET_MESSAGE_TYPE_LOCKMANAGER_RELEASE, 0}, + {NULL} + }; + GNUNET_SERVER_add_handlers (server, + message_handlers); + GNUNET_SERVER_disconnect_notify (server, + &client_disconnect_cb, + NULL); + lock_map = GNUNET_CONTAINER_multihashmap_create (30); + GNUNET_SCHEDULER_add_delayed (GNUNET_TIME_UNIT_FOREVER_REL, + &shutdown_task, + NULL); +} + + +/** + * The starting point of execution + */ +int main (int argc, char *const *argv) +{ + return + (GNUNET_OK == + GNUNET_SERVICE_run (argc, + argv, + "lockmanager", + GNUNET_SERVICE_OPTION_NONE, + &lockmanager_run, + NULL)) ? 0 : 1; +} diff --git a/src/lockmanager/lockmanager.conf.in b/src/lockmanager/lockmanager.conf.in new file mode 100644 index 0000000..75b9244 --- /dev/null +++ b/src/lockmanager/lockmanager.conf.in @@ -0,0 +1,13 @@ +[lockmanager] +AUTOSTART = YES +@UNIXONLY@ PORT = 2100 +HOSTNAME = localhost +HOME = $SERVICEHOME +CONFIG = $DEFAULTCONFIG +BINARY = gnunet-service-lockmanager +ACCEPT_FROM = 127.0.0.1; +ACCEPT_FROM6 = ::1; +UNIXPATH = /tmp/gnunet-service-lockmanager.sock +UNIX_MATCH_UID = YES +UNIX_MATCH_GID = YES + diff --git a/src/lockmanager/lockmanager.h b/src/lockmanager/lockmanager.h new file mode 100644 index 0000000..346c43e --- /dev/null +++ b/src/lockmanager/lockmanager.h @@ -0,0 +1,71 @@ +/* + This file is part of GNUnet. + (C) 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 2, 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 lockmanager/lockmanager.h + * @brief client-server protocol messages for LOCKMANAGER service + * @author Sree Harsha Totakura + */ + +#ifndef LOCKMANAGER_H +#define LOCKMANAGER_H + +#ifdef __cplusplus +extern "C" +{ +#if 0 /* keep Emacsens' auto-indent happy */ +} +#endif +#endif + +#include "gnunet_common.h" + +/** + * Structure of Lockmanager message + */ +struct GNUNET_LOCKMANAGER_Message +{ + /** + * The generic message header + */ + struct GNUNET_MessageHeader header; + + /** + * The lock + */ + uint32_t lock; + + /** + * The locking domain name(NULL terminated string of characters) should + * follow here. The size of the header should include the size of this string + * with its trailing NULL + */ +}; + +#if 0 /* keep Emacsens' auto-indent happy */ +{ +#endif +#ifdef __cplusplus +} +#endif + +/* ifndef LOCKMANAGER_H */ +#endif +/* end of lockmanager.h */ diff --git a/src/lockmanager/lockmanager_api.c b/src/lockmanager/lockmanager_api.c new file mode 100644 index 0000000..99f5ab5 --- /dev/null +++ b/src/lockmanager/lockmanager_api.c @@ -0,0 +1,677 @@ +/* + This file is part of GNUnet. + (C) 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 2, 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 lockmanager/lockmanager_api.c + * @brief API implementation of gnunet_lockmanager_service.h + * @author Sree Harsha Totakura + */ + +/** + * To be fixed: + * Should the handle be freed when the connection to service is lost? + * Should cancel_request have a call back (else simultaneous calls break) + */ + +#include "platform.h" +#include "gnunet_common.h" +#include "gnunet_container_lib.h" +#include "gnunet_client_lib.h" +#include "gnunet_crypto_lib.h" +#include "gnunet_lockmanager_service.h" +#include "gnunet_protocols.h" + +#include "lockmanager.h" + +#define LOG(kind,...) \ + GNUNET_log_from (kind, "lockmanager-api",__VA_ARGS__) + +#define TIME_REL_MINS(min) \ + GNUNET_TIME_relative_multiply (GNUNET_TIME_UNIT_MINUTES, min) + +#define TIMEOUT TIME_REL_MINS(3) + + +/** + * The message queue + */ +struct MessageQueue +{ + /** + * The next pointer for doubly linked list + */ + struct MessageQueue *next; + + /** + * The prev pointer for doubly linked list + */ + struct MessageQueue *prev; + + /** + * The LOCKMANAGER Message + */ + struct GNUNET_LOCKMANAGER_Message *msg; +}; + + +/** + * Handler for the lockmanager service + */ +struct GNUNET_LOCKMANAGER_Handle +{ + /** + * The client connection to the service + */ + struct GNUNET_CLIENT_Connection *conn; + + /** + * The transmit handle for transmissions using conn + */ + struct GNUNET_CLIENT_TransmitHandle *transmit_handle; + + /** + * Hashmap handle + */ + struct GNUNET_CONTAINER_MultiHashMap *hashmap; + + /** + * Double linked list head for message queue + */ + struct MessageQueue *mq_head; + + /** + * Double linked list tail for message queue + */ + struct MessageQueue *mq_tail; +}; + + +/** + * Structure for Locking Request + */ +struct GNUNET_LOCKMANAGER_LockingRequest +{ + /** + * The handle associated with this request + */ + struct GNUNET_LOCKMANAGER_Handle *handle; + + /** + * The status callback + */ + GNUNET_LOCKMANAGER_StatusCallback status_cb; + + /** + * Closure for the status callback + */ + void *status_cb_cls; + + /** + * The locking domain of this request + */ + char *domain; + + /** + * The lock + */ + uint32_t lock; + + /** + * The status of the lock + */ + enum GNUNET_LOCKMANAGER_Status status; +}; + + +/** + * Structure for matching a lock + */ +struct LockingRequestMatch +{ + /** + * The matched LockingRequest entry; Should be NULL if no entry is found + */ + struct GNUNET_LOCKMANAGER_LockingRequest *matched_entry; + + /** + * The locking domain name of the lock + */ + const char *domain; + + /** + * The lock number + */ + uint32_t lock; +}; + + +/** + * Transmit notify for sending message to server + * + * @param cls the lockmanager handle + * @param size number of bytes available in buf + * @param buf where the callee should write the message + * @return number of bytes written to buf + */ +static size_t +transmit_notify (void *cls, size_t size, void *buf) +{ + struct GNUNET_LOCKMANAGER_Handle *handle = cls; + struct MessageQueue *queue_entity; + uint16_t msg_size; + + handle->transmit_handle = NULL; + if ((0 == size) || (NULL == buf)) + { + /* FIXME: Timed out -- requeue? */ + return 0; + } + queue_entity = handle->mq_head; + GNUNET_assert (NULL != queue_entity); + msg_size = ntohs (queue_entity->msg->header.size); + GNUNET_assert (size >= msg_size); + memcpy (buf, queue_entity->msg, msg_size); + LOG (GNUNET_ERROR_TYPE_DEBUG, + "Message of size %u sent\n", msg_size); + GNUNET_free (queue_entity->msg); + GNUNET_CONTAINER_DLL_remove (handle->mq_head, + handle->mq_tail, + queue_entity); + GNUNET_free (queue_entity); + queue_entity = handle->mq_head; + if (NULL != queue_entity) + { + handle->transmit_handle = + GNUNET_CLIENT_notify_transmit_ready (handle->conn, + ntohs + (queue_entity->msg->header.size), + TIMEOUT, + GNUNET_YES, + &transmit_notify, + handle); + } + return msg_size; +} + + +/** + * Queues a message into handle's send message queue + * + * @param handle the lockmanager handle whose queue will be used + * @param msg the message to be queued + */ +static void +queue_message (struct GNUNET_LOCKMANAGER_Handle *handle, + struct GNUNET_LOCKMANAGER_Message *msg) +{ + struct MessageQueue *queue_entity; + + GNUNET_assert (NULL != msg); + queue_entity = GNUNET_malloc (sizeof (struct MessageQueue)); + queue_entity->msg = msg; + GNUNET_CONTAINER_DLL_insert_tail (handle->mq_head, + handle->mq_tail, + queue_entity); + if (NULL == handle->transmit_handle) + { + handle->transmit_handle = + GNUNET_CLIENT_notify_transmit_ready (handle->conn, + ntohs (msg->header.size), + TIMEOUT, + GNUNET_YES, + &transmit_notify, + handle); + } +} + + +/** + * Get the key for the given lock in the 'lock_map'. + * + * @param domain_name + * @param lock_number + * @param key set to the key + */ +static void +get_key (const char *domain_name, + uint32_t lock_number, + struct GNUNET_HashCode *key) +{ + uint32_t *last_32; + + GNUNET_CRYPTO_hash (domain_name, + strlen (domain_name), + key); + last_32 = (uint32_t *) key; + *last_32 ^= lock_number; +} + + +/** + * Hashmap iterator for matching a LockingRequest + * + * @param cls the LockingRequestMatch structure + * @param key current key code + * @param value value in the hash map (struct GNUNET_LOCKMANAGER_LockingRequest) + * @return GNUNET_YES if we should continue to + * iterate, + * GNUNET_NO if not. + */ +static int +match_iterator (void *cls, const GNUNET_HashCode *key, void *value) +{ + struct LockingRequestMatch *match = cls; + struct GNUNET_LOCKMANAGER_LockingRequest *lr = value; + + if ( (match->lock == lr->lock) && (0 == strcmp (match->domain, lr->domain)) ) + { + match->matched_entry = lr; + return GNUNET_NO; + } + return GNUNET_YES; +} + + +/** + * Function to find a LockingRequest associated with the given domain and lock + * attributes in the map + * + * @param map the map where the LockingRequests are stored + * @param domain the locking domain name + * @param lock the lock number + * @return the found LockingRequest; NULL if a matching LockingRequest wasn't + * found + */ +static struct GNUNET_LOCKMANAGER_LockingRequest * +hashmap_find_lockingrequest (const struct GNUNET_CONTAINER_MultiHashMap *map, + const char *domain, + uint32_t lock) +{ + struct GNUNET_HashCode hash; + struct LockingRequestMatch lock_match; + + lock_match.matched_entry = NULL; + lock_match.domain = domain; + lock_match.lock = lock; + get_key (domain, lock, &hash); + GNUNET_CONTAINER_multihashmap_get_multiple (map, + &hash, + &match_iterator, + &lock_match); + return lock_match.matched_entry; +} + + +/** + * Task for calling status change callback for a lock + * + * @param cls the LockingRequest associated with this lock + * @param tc the TaskScheduler context + */ +static void +call_status_cb_task (void *cls, const struct GNUNET_SCHEDULER_TaskContext *tc) +{ + const struct GNUNET_LOCKMANAGER_LockingRequest *r = cls; + + if (NULL != r->status_cb) + { + LOG (GNUNET_ERROR_TYPE_DEBUG, + "Calling status change for SUCCESS on lock num: %d, domain: %s\n", + r->lock, r->domain); + r->status_cb (r->status_cb_cls, + r->domain, + r->lock, + r->status); + } +} + + +/** + * Iterator to call relase and free all LockingRequest entries + * + * @param cls the lockmanager handle + * @param key current key code + * @param value the Locking request + * @return GNUNET_YES if we should continue to + * iterate, + * GNUNET_NO if not. + */ +static int +release_iterator(void *cls, + const GNUNET_HashCode * key, + void *value) +{ + struct GNUNET_LOCKMANAGER_Handle *h = cls; + struct GNUNET_LOCKMANAGER_LockingRequest *r = value; + + if (NULL != r->status_cb) + { + LOG (GNUNET_ERROR_TYPE_DEBUG, + "Calling status change for RELEASE on lock num: %d, domain: %s\n", + r->lock, r->domain); + r->status_cb (r->status_cb_cls, + r->domain, + r->lock, + GNUNET_LOCKMANAGER_RELEASE); + } + GNUNET_assert (GNUNET_YES == + GNUNET_CONTAINER_multihashmap_remove (h->hashmap, + key, + value)); + GNUNET_free (r->domain); + GNUNET_free (r); + return GNUNET_YES; +} + + +/** + * Handler for server replies + * + * @param cls the LOCKMANAGER_Handle + * @param msg received message, NULL on timeout or fatal error + */ +static void +handle_replies (void *cls, + const struct GNUNET_MessageHeader *msg) +{ + struct GNUNET_LOCKMANAGER_Handle *handle = cls; + const struct GNUNET_LOCKMANAGER_Message *m; + struct GNUNET_LOCKMANAGER_LockingRequest *lr; + const char *domain; + struct GNUNET_HashCode hash; + uint32_t lock; + uint16_t msize; + + if (NULL == msg) + { + LOG (GNUNET_ERROR_TYPE_DEBUG, + "Lockmanager service not available or went down\n"); + /* Should release all locks and free its locking requests */ + GNUNET_CONTAINER_multihashmap_iterate (handle->hashmap, + &release_iterator, + handle); + return; + } + GNUNET_CLIENT_receive (handle->conn, + &handle_replies, + handle, + GNUNET_TIME_UNIT_FOREVER_REL); + if (GNUNET_MESSAGE_TYPE_LOCKMANAGER_SUCCESS != ntohs(msg->type)) + { + GNUNET_break (0); + return; + } + msize = ntohs (msg->size); + if (msize <= sizeof (struct GNUNET_LOCKMANAGER_Message)) + { + GNUNET_break (0); + return; + } + m = (const struct GNUNET_LOCKMANAGER_Message *) msg; + domain = (const char *) &m[1]; + msize -= sizeof (struct GNUNET_LOCKMANAGER_Message); + if ('\0' != domain[msize-1]) + { + GNUNET_break (0); + return; + } + + lock = ntohl (m->lock); + get_key (domain, lock, &hash); + LOG (GNUNET_ERROR_TYPE_DEBUG, + "Received SUCCESS message for lock: %d, domain %s\n", + lock, domain); + if (NULL == (lr = hashmap_find_lockingrequest (handle->hashmap, + domain, + lock))) + { + GNUNET_break (0); + return; + } + if (GNUNET_LOCKMANAGER_SUCCESS == lr->status) + { + GNUNET_break (0); + return; + } + LOG (GNUNET_ERROR_TYPE_DEBUG, + "Changing status for lock: %d in domain: %s to SUCCESS\n", + lr->lock, lr->domain); + lr->status = GNUNET_LOCKMANAGER_SUCCESS; + GNUNET_SCHEDULER_add_continuation (&call_status_cb_task, + lr, + GNUNET_SCHEDULER_REASON_PREREQ_DONE); +} + + +/** + * Iterator to free hash map entries. + * + * @param cls the lockmanger handle + * @param key current key code + * @param value the Locking request + * @return GNUNET_YES if we should continue to + * iterate, + * GNUNET_NO if not. + */ +static int +free_iterator(void *cls, + const GNUNET_HashCode * key, + void *value) +{ + struct GNUNET_LOCKMANAGER_Handle *h = cls; + struct GNUNET_LOCKMANAGER_LockingRequest *r = value; + + LOG (GNUNET_ERROR_TYPE_DEBUG, + "Clearing locking request\n"); + GNUNET_assert (GNUNET_YES == + GNUNET_CONTAINER_multihashmap_remove (h->hashmap, + key, + value)); + GNUNET_free (r->domain); + GNUNET_free (r); + return GNUNET_YES; +} + + +/*******************/ +/* API Definitions */ +/*******************/ + + +/** + * Connect to the lockmanager service + * + * @param cfg the configuration to use + * + * @return upon success the handle to the service; NULL upon error + */ +struct GNUNET_LOCKMANAGER_Handle * +GNUNET_LOCKMANAGER_connect (const struct GNUNET_CONFIGURATION_Handle *cfg) +{ + struct GNUNET_LOCKMANAGER_Handle *h; + + LOG (GNUNET_ERROR_TYPE_DEBUG, "%s()\n", __func__); + h = GNUNET_malloc (sizeof (struct GNUNET_LOCKMANAGER_Handle)); + h->conn = GNUNET_CLIENT_connect ("lockmanager", cfg); + if (NULL == h->conn) + { + GNUNET_free (h); + LOG (GNUNET_ERROR_TYPE_DEBUG, "%s() END\n", __func__); + return NULL; + } + h->hashmap = GNUNET_CONTAINER_multihashmap_create (15); + GNUNET_assert (NULL != h->hashmap); + GNUNET_CLIENT_receive (h->conn, + &handle_replies, + h, + GNUNET_TIME_UNIT_FOREVER_REL); + + LOG (GNUNET_ERROR_TYPE_DEBUG, "%s() END\n", __func__); + return h; +} + + +/** + * Disconnect from the lockmanager service + * + * @param handle the handle to the lockmanager service + */ +void +GNUNET_LOCKMANAGER_disconnect (struct GNUNET_LOCKMANAGER_Handle *handle) +{ + struct MessageQueue *head; + + LOG (GNUNET_ERROR_TYPE_DEBUG, "%s()\n", __func__); + if (0 != GNUNET_CONTAINER_multihashmap_size (handle->hashmap)) + { + LOG (GNUNET_ERROR_TYPE_WARNING, + "Some locking requests are still present. Cancel them before " + "calling %s\n", __func__); + GNUNET_CONTAINER_multihashmap_iterate (handle->hashmap, + &free_iterator, + handle); + } + GNUNET_CONTAINER_multihashmap_destroy (handle->hashmap); + /* Clear the message queue */ + if (NULL != handle->transmit_handle) + { + GNUNET_CLIENT_notify_transmit_ready_cancel (handle->transmit_handle); + } + head = handle->mq_head; + while (NULL != head) + { + GNUNET_CONTAINER_DLL_remove (handle->mq_head, + handle->mq_tail, + head); + GNUNET_free (head->msg); + GNUNET_free (head); + head = handle->mq_head; + } + GNUNET_CLIENT_disconnect (handle->conn); + GNUNET_free (handle); + LOG (GNUNET_ERROR_TYPE_DEBUG, "%s() END\n", __func__); +} + + +/** + * Tries to acquire the given lock(even if the lock has been lost) until the + * request is called. If the lock is available the status_cb will be + * called. If the lock is busy then the request is queued and status_cb + * will be called when the lock has been made available and acquired by us. + * + * @param handle the handle to the lockmanager service + * + * @param domain_name name of the locking domain. Clients who want to share + * locks must use the same name for the locking domain. Also the + * domain_name should be selected with the prefix + * "GNUNET_<PROGRAM_NAME>_" to avoid domain name collisions. + * + * + * @param lock which lock to lock + * + * @param status_cb the callback for signalling when the lock is acquired and + * when it is lost + * + * @param status_cb_cls the closure to the above callback + * + * @return the locking request handle for this request + */ +struct GNUNET_LOCKMANAGER_LockingRequest * +GNUNET_LOCKMANAGER_acquire_lock (struct GNUNET_LOCKMANAGER_Handle *handle, + const char *domain_name, + uint32_t lock, + GNUNET_LOCKMANAGER_StatusCallback + status_cb, + void *status_cb_cls) +{ + struct GNUNET_LOCKMANAGER_LockingRequest *r; + struct GNUNET_LOCKMANAGER_Message *msg; + struct GNUNET_HashCode hash; + uint16_t msg_size; + size_t domain_name_length; + + LOG (GNUNET_ERROR_TYPE_DEBUG, "%s()\n", __func__); + r = GNUNET_malloc (sizeof (struct GNUNET_LOCKMANAGER_LockingRequest)); + domain_name_length = strlen (domain_name) + 1; + r->handle = handle; + r->lock = lock; + r->domain = GNUNET_malloc (domain_name_length); + r->status = GNUNET_LOCKMANAGER_RELEASE; + r->status_cb = status_cb; + r->status_cb_cls = status_cb_cls; + memcpy (r->domain, domain_name, domain_name_length); + msg_size = sizeof (struct GNUNET_LOCKMANAGER_Message) + domain_name_length; + msg = GNUNET_malloc (msg_size); + msg->header.type = htons (GNUNET_MESSAGE_TYPE_LOCKMANAGER_ACQUIRE); + msg->header.size = htons (msg_size); + msg->lock = htonl (lock); + memcpy (&msg[1], r->domain, domain_name_length); + LOG (GNUNET_ERROR_TYPE_DEBUG, "Queueing ACQUIRE message\n"); + queue_message (handle, msg); + get_key (r->domain, r->lock, &hash); + GNUNET_CONTAINER_multihashmap_put (r->handle->hashmap, + &hash, + r, + GNUNET_CONTAINER_MULTIHASHMAPOPTION_MULTIPLE); + LOG (GNUNET_ERROR_TYPE_DEBUG, "%s() END\n", __func__); + return r; +} + + + +/** + * Function to cancel the locking request generated by + * GNUNET_LOCKMANAGER_acquire_lock. If the lock is acquired us then the lock is + * released. GNUNET_LOCKMANAGER_StatusCallback will not be called upon any + * status changes resulting due to this call. + * + * @param request the LockingRequest to cancel + */ +void +GNUNET_LOCKMANAGER_cancel_request (struct GNUNET_LOCKMANAGER_LockingRequest + *request) +{ + struct GNUNET_LOCKMANAGER_Message *msg; + struct GNUNET_HashCode hash; + uint16_t msg_size; + size_t domain_name_length; + + LOG (GNUNET_ERROR_TYPE_DEBUG, "%s()\n", __func__); + /* FIXME: Stop ACQUIRE retransmissions */ + if (GNUNET_LOCKMANAGER_SUCCESS == request->status) + { + domain_name_length = strlen (request->domain) + 1; + msg_size = sizeof (struct GNUNET_LOCKMANAGER_Message) + + domain_name_length; + msg = GNUNET_malloc (msg_size); + msg->header.type = htons (GNUNET_MESSAGE_TYPE_LOCKMANAGER_RELEASE); + msg->header.size = htons (msg_size); + msg->lock = htonl (request->lock); + memcpy (&msg[1], request->domain, domain_name_length); + queue_message (request->handle, msg); + } + get_key (request->domain, request->lock, &hash); + GNUNET_assert (GNUNET_YES == + GNUNET_CONTAINER_multihashmap_remove + (request->handle->hashmap, &hash, request)); + GNUNET_free (request->domain); + GNUNET_free (request); + LOG (GNUNET_ERROR_TYPE_DEBUG, "%s() END\n", __func__); +} diff --git a/src/lockmanager/test_lockmanager_api.c b/src/lockmanager/test_lockmanager_api.c new file mode 100644 index 0000000..e8d0412 --- /dev/null +++ b/src/lockmanager/test_lockmanager_api.c @@ -0,0 +1,279 @@ +/* + This file is part of GNUnet. + (C) 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 2, 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 lockmanager/test_lockmanager_api.c + * @brief Test cases for lockmanager_api.c + * @author Sree Harsha Totakura + */ + +#include "platform.h" +#include "gnunet_util_lib.h" +#include "gnunet_lockmanager_service.h" + +#define VERBOSE GNUNET_YES + +#define VERBOSE_ARM 1 + +#define LOG(kind,...) \ + GNUNET_log (kind, __VA_ARGS__) + +#define TIME_REL_SECONDS(min) \ + GNUNET_TIME_relative_multiply (GNUNET_TIME_UNIT_SECONDS, min) + + +/** + * Enumeration of testing steps + */ +enum Test + { + TEST_FAIL, + + TEST_INIT, + + LOCK1_ACQUIRE, + + LOCK2_ACQUIRE + }; + + +/** + * The testing result + */ +static enum Test result; + +/** + * The process id of the GNUNET ARM process + */ +static struct GNUNET_OS_Process *arm_pid = NULL; + +/** + * Configuration Handle + */ +static struct GNUNET_CONFIGURATION_Handle *config; + +/** + * The handle to the lockmanager service + */ +static struct GNUNET_LOCKMANAGER_Handle *handle; + +/** + * The locking request + */ +static struct GNUNET_LOCKMANAGER_LockingRequest *request; + +/** + * The second locking request + */ +static struct GNUNET_LOCKMANAGER_LockingRequest *request2; + +/** + * Abort task identifier + */ +static GNUNET_SCHEDULER_TaskIdentifier abort_task_id; + +/** + * Shutdown nicely + * + * @param cls + * @param tc the task context + */ +static void +do_shutdown (void *cls, const const struct GNUNET_SCHEDULER_TaskContext *tc) +{ + if (GNUNET_SCHEDULER_NO_TASK != abort_task_id) + { + GNUNET_SCHEDULER_cancel (abort_task_id); + abort_task_id = GNUNET_SCHEDULER_NO_TASK; + } + if (NULL != request) + GNUNET_LOCKMANAGER_cancel_request (request); + if (NULL != request2) + GNUNET_LOCKMANAGER_cancel_request (request2); + GNUNET_LOCKMANAGER_disconnect (handle); + if (0 != GNUNET_OS_process_kill (arm_pid, SIGTERM)) + { + LOG (GNUNET_ERROR_TYPE_DEBUG, + "Kill gnunet-service-arm manually\n"); + } + GNUNET_OS_process_wait (arm_pid); + GNUNET_OS_process_destroy (arm_pid); + + if (NULL != config) + GNUNET_CONFIGURATION_destroy (config); +} + + +/** + * Shutdown nicely + * + * @param cls + * @param tc the task context + */ +static void +do_abort (void *cls, const const struct GNUNET_SCHEDULER_TaskContext *tc) +{ + LOG (GNUNET_ERROR_TYPE_DEBUG, "Aborting test...\n"); + abort_task_id = GNUNET_SCHEDULER_NO_TASK; + result = TEST_FAIL; + do_shutdown (cls, tc); +} + +/** + * Callback for lock status changes + * + * @param cls the closure from GNUNET_LOCKMANAGER_lock call + * + * @param domain_name the locking domain of the lock + * + * @param lock the lock for which this status is relevant + * + * @param status GNUNET_LOCKMANAGER_SUCCESS if the lock has been successfully + * acquired; GNUNET_LOCKMANAGER_RELEASE when the acquired lock is lost + */ +static void +status_cb (void *cls, + const char *domain_name, + uint32_t lock, + enum GNUNET_LOCKMANAGER_Status status) +{ + LOG (GNUNET_ERROR_TYPE_DEBUG, + "Status change callback called on lock: %d of domain: %s\n", + lock, domain_name); + switch (result) + { + case LOCK1_ACQUIRE: + GNUNET_assert (GNUNET_LOCKMANAGER_SUCCESS == status); + GNUNET_assert (NULL != request); + //GNUNET_LOCKMANAGER_cancel_request (request); + //request = NULL; + result = LOCK2_ACQUIRE; + request2 = GNUNET_LOCKMANAGER_acquire_lock (handle, + "GNUNET_LOCKMANAGER_TESTING", + 100, + &status_cb, + NULL); + GNUNET_assert (NULL != request2); + break; + case LOCK2_ACQUIRE: + GNUNET_assert (GNUNET_LOCKMANAGER_SUCCESS == status); + GNUNET_assert (NULL != request); + GNUNET_SCHEDULER_add_delayed (TIME_REL_SECONDS (1), + &do_shutdown, + NULL); + break; + default: + GNUNET_break (0); + } +} + + +/** + * Testing function + * + * @param cls NULL + * @param tc the task context + */ +static void +test (void *cls, const struct GNUNET_SCHEDULER_TaskContext *tc) +{ + handle = GNUNET_LOCKMANAGER_connect (config); + GNUNET_assert (NULL != handle); + result = LOCK1_ACQUIRE; + request = GNUNET_LOCKMANAGER_acquire_lock (handle, + "GNUNET_LOCKMANAGER_TESTING", + 99, + &status_cb, + NULL); + abort_task_id = GNUNET_SCHEDULER_add_delayed (TIME_REL_SECONDS (10), + &do_abort, + NULL); +} + + +/** + * Main point of test execution + */ +static void +run (void *cls, char *const *args, const char *cfgfile, + const struct GNUNET_CONFIGURATION_Handle *cfg) +{ + LOG (GNUNET_ERROR_TYPE_DEBUG, "Starting test...\n"); + config = GNUNET_CONFIGURATION_dup (cfg); + arm_pid = + GNUNET_OS_start_process (GNUNET_YES, NULL, NULL, "gnunet-service-arm", + "gnunet-service-arm", +#if VERBOSE_ARM + "-L", "DEBUG", +#endif + "-c", "test_lockmanager_api.conf", NULL); + + GNUNET_assert (NULL != arm_pid); + GNUNET_SCHEDULER_add_delayed (TIME_REL_SECONDS (3), + &test, + NULL); +} + + +/** + * Main function + */ +int main (int argc, char **argv) +{ + int ret; + + char *const argv2[] = { "test-lockmanager-api", + "-c", "test_lockmanager_api.conf", +#if VERBOSE + "-L", "DEBUG", +#endif + NULL + }; + + struct GNUNET_GETOPT_CommandLineOption options[] = { + GNUNET_GETOPT_OPTION_END + }; + + GNUNET_log_setup ("test-lockmanager-api", +#if VERBOSE + "DEBUG", +#else + "WARNING", +#endif + NULL); + + ret = + GNUNET_PROGRAM_run ((sizeof (argv2) / sizeof (char *)) - 1, argv2, + "test-lockmanager-api", "nohelp", options, &run, NULL); + + if (GNUNET_OK != ret) + { + LOG (GNUNET_ERROR_TYPE_WARNING, "run failed with error code %d\n", + ret); + return 1; + } + if (TEST_FAIL == result) + { + LOG (GNUNET_ERROR_TYPE_WARNING, "test failed\n"); + return 1; + } + LOG (GNUNET_ERROR_TYPE_INFO, "test OK\n"); + return 0; +} diff --git a/src/lockmanager/test_lockmanager_api.conf b/src/lockmanager/test_lockmanager_api.conf new file mode 100644 index 0000000..894f409 --- /dev/null +++ b/src/lockmanager/test_lockmanager_api.conf @@ -0,0 +1,73 @@ +[lockmanager] +DEBUG = YES +AUTOSTART = NO +PORT = 12112 +ACCEPT_FROM = 127.0.0.1; +HOSTNAME = localhost +# PREFIX = valgrind --leak-check=full +# PREFIX = xterm -geometry 100x85 -T peer1 -e libtool --mode=execute gdb --args + +[fs] +AUTOSTART = NO + +[resolver] +AUTOSTART = NO + +[mesh] +AUTOSTART = NO + +[dht] +AUTOSTART = NO + +[block] +plugins = dht test + +[dhtcache] +QUOTA = 1 MB +DATABASE = sqlite + +[transport] +PLUGINS = tcp +DEBUG = NO +ACCEPT_FROM6 = ::1; +ACCEPT_FROM = 127.0.0.1; +NEIGHBOUR_LIMIT = 50 +PORT = 12365 + +[ats] +WAN_QUOTA_OUT = 3932160 +WAN_QUOTA_IN = 3932160 + +[core] +PORT = 12092 + +[arm] +DEFAULTSERVICES = core lockmanager +PORT = 12366 +DEBUG = NO + +[transport-tcp] +TIMEOUT = 300 s +PORT = 12368 + +[TESTING] +NUM_PEERS = 5 +WEAKRANDOM = YES +DEBUG = YES +HOSTKEYSFILE = ../../contrib/testing_hostkeys.dat +MAX_CONCURRENT_SSH = 10 +USE_PROGRESSBARS = YES +PEERGROUP_TIMEOUT = 2400 s + +[gnunetd] +HOSTKEY = $SERVICEHOME/.hostkey + +[PATHS] +DEFAULTCONFIG = test_lockmanager_api.conf +SERVICEHOME = /tmp/test-lockmanager/ + +[dns] +AUTOSTART = NO + +[nse] +AUTOSTART = NO diff --git a/src/lockmanager/test_lockmanager_api_lockrelease.c b/src/lockmanager/test_lockmanager_api_lockrelease.c new file mode 100644 index 0000000..7e24d10 --- /dev/null +++ b/src/lockmanager/test_lockmanager_api_lockrelease.c @@ -0,0 +1,301 @@ +/* + This file is part of GNUnet. + (C) 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 2, 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 lockmanager/test_lockmanager_api_lockrelease.c + * @brief Test cases for lockmanager_api where client disconnects abruptly + * @author Sree Harsha Totakura + */ + +#include "platform.h" +#include "gnunet_util_lib.h" +#include "gnunet_lockmanager_service.h" + +#define VERBOSE GNUNET_YES + +#define VERBOSE_ARM 1 + +#define LOG(kind,...) \ + GNUNET_log (kind, __VA_ARGS__) + +#define TIME_REL_SECONDS(min) \ + GNUNET_TIME_relative_multiply (GNUNET_TIME_UNIT_SECONDS, min) + +/** + * Various steps of the test + */ +enum Test + { + /** + * Signal test failure + */ + TEST_FAIL, + + /** + * Testing just began + */ + TEST_INIT, + + /** + * Client 1 has got the lock successfully; Client 2 should try to acquire + * the lock now; after some time client 1 has to release the lock + */ + TEST_CLIENT1_LOCK_SUCCESS, + + /** + * Client 2 has got the lock; Should release it and call shutdown + */ + TEST_CLIENT2_LOCK_SUCCESS, + }; + +/** + * The testing result + */ +static enum Test result; + +/** + * The process id of the GNUNET ARM process + */ +static struct GNUNET_OS_Process *arm_pid = NULL; + +/** + * Configuration Handle + */ +static struct GNUNET_CONFIGURATION_Handle *config; + +/** + * The handle to the lockmanager service + */ +static struct GNUNET_LOCKMANAGER_Handle *handle; + +/** + * A second client handle to the lockmanager service + */ +static struct GNUNET_LOCKMANAGER_Handle *handle2; + +/** + * The locking request + */ +static struct GNUNET_LOCKMANAGER_LockingRequest *request; + +/** + * The locking request of second client + */ +static struct GNUNET_LOCKMANAGER_LockingRequest *request2; + +/** + * Abort task identifier + */ +static GNUNET_SCHEDULER_TaskIdentifier abort_task_id; + + +/** + * Shutdown nicely + * + * @param cls + * @param tc the task context + */ +static void +do_shutdown (void *cls, const const struct GNUNET_SCHEDULER_TaskContext *tc) +{ + if (GNUNET_SCHEDULER_NO_TASK != abort_task_id) + { + GNUNET_SCHEDULER_cancel (abort_task_id); + abort_task_id = GNUNET_SCHEDULER_NO_TASK; + } + + GNUNET_LOCKMANAGER_disconnect (handle); + GNUNET_LOCKMANAGER_disconnect (handle2); + if (0 != GNUNET_OS_process_kill (arm_pid, SIGTERM)) + { + LOG (GNUNET_ERROR_TYPE_DEBUG, + "Kill gnunet-service-arm manually\n"); + } + GNUNET_OS_process_wait (arm_pid); + GNUNET_OS_process_destroy (arm_pid); + + if (NULL != config) + GNUNET_CONFIGURATION_destroy (config); +} + + +/** + * Abort + * + * @param cls + * @param tc the task context + */ +static void +do_abort (void *cls, const const struct GNUNET_SCHEDULER_TaskContext *tc) +{ + LOG (GNUNET_ERROR_TYPE_DEBUG, "Aborting test...\n"); + abort_task_id = GNUNET_SCHEDULER_NO_TASK; + result = TEST_FAIL; + do_shutdown (cls, tc); +} + + +/** + * Callback for lock status changes + * + * @param cls the handle + * + * @param domain_name the locking domain of the lock + * + * @param lock the lock for which this status is relevant + * + * @param status GNUNET_LOCKMANAGER_SUCCESS if the lock has been successfully + * acquired; GNUNET_LOCKMANAGER_RELEASE when the acquired lock is lost + */ +static void +status_cb (void *cls, + const char *domain_name, + uint32_t lock, + enum GNUNET_LOCKMANAGER_Status status) +{ + LOG (GNUNET_ERROR_TYPE_DEBUG, + "Status change callback called on lock: %d of domain: %s\n", + lock, domain_name); + GNUNET_assert (GNUNET_LOCKMANAGER_SUCCESS == status); + switch (result) + { + case TEST_INIT: + GNUNET_assert (handle == cls); + result = TEST_CLIENT1_LOCK_SUCCESS; + request2 = GNUNET_LOCKMANAGER_acquire_lock (handle2, + "GNUNET_LOCKMANAGER_TESTING", + 99, + &status_cb, + handle2); + GNUNET_assert (NULL != request2); + GNUNET_LOCKMANAGER_cancel_request (request); + request = NULL; + break; + case TEST_CLIENT1_LOCK_SUCCESS: + GNUNET_assert (handle2 == cls); + result = TEST_CLIENT2_LOCK_SUCCESS; + GNUNET_LOCKMANAGER_cancel_request (request2); + GNUNET_SCHEDULER_add_delayed (TIME_REL_SECONDS (1), + &do_shutdown, + NULL); + break; + default: + GNUNET_assert (0); /* We should never reach here */ + } + +} + + +/** + * Testing function + * + * @param cls NULL + * @param tc the task context + */ +static void +test (void *cls, const struct GNUNET_SCHEDULER_TaskContext *tc) +{ + result = TEST_INIT; + handle = GNUNET_LOCKMANAGER_connect (config); + GNUNET_assert (NULL != handle); + handle2 = GNUNET_LOCKMANAGER_connect (config); + + request = GNUNET_LOCKMANAGER_acquire_lock (handle, + "GNUNET_LOCKMANAGER_TESTING", + 99, + &status_cb, + handle); + GNUNET_assert (NULL != request); + abort_task_id = GNUNET_SCHEDULER_add_delayed (TIME_REL_SECONDS (10), + &do_abort, + NULL); +} + + +/** + * Main point of test execution + */ +static void +run (void *cls, char *const *args, const char *cfgfile, + const struct GNUNET_CONFIGURATION_Handle *cfg) +{ + LOG (GNUNET_ERROR_TYPE_DEBUG, "Starting test...\n"); + config = GNUNET_CONFIGURATION_dup (cfg); + arm_pid = + GNUNET_OS_start_process (GNUNET_YES, NULL, NULL, "gnunet-service-arm", + "gnunet-service-arm", +#if VERBOSE_ARM + "-L", "DEBUG", +#endif + "-c", "test_lockmanager_api.conf", NULL); + + GNUNET_assert (NULL != arm_pid); + GNUNET_SCHEDULER_add_delayed (TIME_REL_SECONDS (3), + &test, + NULL); +} + + +/** + * Main function + */ +int main (int argc, char **argv) +{ + int ret; + + char *const argv2[] = { "test-lockmanager-api-lockrelease", + "-c", "test_lockmanager_api.conf", +#if VERBOSE + "-L", "DEBUG", +#endif + NULL + }; + + struct GNUNET_GETOPT_CommandLineOption options[] = { + GNUNET_GETOPT_OPTION_END + }; + + GNUNET_log_setup ("test-lockmanager-api-lockrelease", +#if VERBOSE + "DEBUG", +#else + "WARNING", +#endif + NULL); + + ret = + GNUNET_PROGRAM_run ((sizeof (argv2) / sizeof (char *)) - 1, argv2, + "test-lockmanager-api-lockrelease", + "nohelp", options, &run, NULL); + + if (GNUNET_OK != ret) + { + LOG (GNUNET_ERROR_TYPE_WARNING, "run failed with error code %d\n", + ret); + return 1; + } + if (TEST_CLIENT2_LOCK_SUCCESS != result) + { + LOG (GNUNET_ERROR_TYPE_WARNING, "test failed\n"); + return 1; + } + LOG (GNUNET_ERROR_TYPE_INFO, "test OK\n"); + return 0; +} diff --git a/src/lockmanager/test_lockmanager_api_servercrash.c b/src/lockmanager/test_lockmanager_api_servercrash.c new file mode 100644 index 0000000..3fa6418 --- /dev/null +++ b/src/lockmanager/test_lockmanager_api_servercrash.c @@ -0,0 +1,326 @@ +/* + This file is part of GNUnet. + (C) 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 2, 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 lockmanager/test_lockmanager_api_servercrash.c + * @brief Test cases for lockmanager_api where the server crashes + * @author Sree Harsha Totakura + */ + +#include "platform.h" +#include "gnunet_util_lib.h" +#include "gnunet_lockmanager_service.h" + +#define VERBOSE GNUNET_YES + +#define VERBOSE_ARM 1 + +#define LOG(kind,...) \ + GNUNET_log (kind, __VA_ARGS__) + +#define TIME_REL_SECONDS(min) \ + GNUNET_TIME_relative_multiply (GNUNET_TIME_UNIT_SECONDS, min) + +/** + * Various steps of the test + */ +enum Test + { + /** + * Signal test failure + */ + TEST_FAIL, + + /** + * Testing just began + */ + TEST_INIT, + + /** + * Client 1 has got the lock successfully; Client 2 should try to acquire + * the lock now; after some time client 1 has to release the lock + */ + TEST_CLIENT1_LOCK_SUCCESS, + + /** + * Client 2 has got the lock; Server should crash now; + */ + TEST_CLIENT2_LOCK_SUCCESS, + + /** + * Client 2 should get lock release due to server crash; Should call + * shutdown now + */ + TEST_CLIENT2_SERVER_CRASH_SUCCESS + }; + +/** + * The testing result + */ +static enum Test result; + +/** + * The process id of the GNUNET ARM process + */ +static struct GNUNET_OS_Process *arm_pid = NULL; + +/** + * Configuration Handle + */ +static struct GNUNET_CONFIGURATION_Handle *config; + +/** + * The handle to the lockmanager service + */ +static struct GNUNET_LOCKMANAGER_Handle *handle; + +/** + * A second client handle to the lockmanager service + */ +static struct GNUNET_LOCKMANAGER_Handle *handle2; + +/** + * The locking request + */ +static struct GNUNET_LOCKMANAGER_LockingRequest *request; + +/** + * The locking request of second client + */ +static struct GNUNET_LOCKMANAGER_LockingRequest *request2; + +/** + * Abort task identifier + */ +static GNUNET_SCHEDULER_TaskIdentifier abort_task_id; + + +/** + * Shutdown nicely + * + * @param cls + * @param tc the task context + */ +static void +do_shutdown (void *cls, const const struct GNUNET_SCHEDULER_TaskContext *tc) +{ + if (GNUNET_SCHEDULER_NO_TASK != abort_task_id) + { + GNUNET_SCHEDULER_cancel (abort_task_id); + abort_task_id = GNUNET_SCHEDULER_NO_TASK; + } + if (NULL != handle) + GNUNET_LOCKMANAGER_disconnect (handle); + if (NULL != handle2) + GNUNET_LOCKMANAGER_disconnect (handle2); + if (NULL != arm_pid) + { + if (0 != GNUNET_OS_process_kill (arm_pid, SIGTERM)) + { + LOG (GNUNET_ERROR_TYPE_DEBUG, + "Kill gnunet-service-arm manually\n"); + } + GNUNET_OS_process_wait (arm_pid); + GNUNET_OS_process_destroy (arm_pid); + } + if (NULL != config) + GNUNET_CONFIGURATION_destroy (config); +} + + +/** + * Abort + * + * @param cls + * @param tc the task context + */ +static void +do_abort (void *cls, const const struct GNUNET_SCHEDULER_TaskContext *tc) +{ + LOG (GNUNET_ERROR_TYPE_DEBUG, "Aborting test...\n"); + abort_task_id = GNUNET_SCHEDULER_NO_TASK; + result = TEST_FAIL; + do_shutdown (cls, tc); +} + + +/** + * Callback for lock status changes + * + * @param cls the handle + * + * @param domain_name the locking domain of the lock + * + * @param lock the lock for which this status is relevant + * + * @param status GNUNET_LOCKMANAGER_SUCCESS if the lock has been successfully + * acquired; GNUNET_LOCKMANAGER_RELEASE when the acquired lock is lost + */ +static void +status_cb (void *cls, + const char *domain_name, + uint32_t lock, + enum GNUNET_LOCKMANAGER_Status status) +{ + LOG (GNUNET_ERROR_TYPE_DEBUG, + "Status change callback called on lock: %d of domain: %s\n", + lock, domain_name); + switch (result) + { + case TEST_INIT: + GNUNET_assert (handle == cls); + GNUNET_assert (GNUNET_LOCKMANAGER_SUCCESS == status); + result = TEST_CLIENT1_LOCK_SUCCESS; + request2 = GNUNET_LOCKMANAGER_acquire_lock (handle2, + "GNUNET_LOCKMANAGER_TESTING", + 99, + &status_cb, + handle2); + GNUNET_assert (NULL != request2); + GNUNET_LOCKMANAGER_cancel_request (request); + request = NULL; + break; + case TEST_CLIENT1_LOCK_SUCCESS: + GNUNET_assert (handle2 == cls); + GNUNET_assert (GNUNET_LOCKMANAGER_SUCCESS == status); + result = TEST_CLIENT2_LOCK_SUCCESS; + /* We should kill the lockmanager process */ + if (0 != GNUNET_OS_process_kill (arm_pid, SIGTERM)) + { + LOG (GNUNET_ERROR_TYPE_DEBUG, + "Kill gnunet-service-arm manually\n"); + } + GNUNET_OS_process_wait (arm_pid); + GNUNET_OS_process_destroy (arm_pid); + arm_pid =NULL; + break; + case TEST_CLIENT2_LOCK_SUCCESS: + GNUNET_assert (handle2 == cls); + GNUNET_assert (GNUNET_LOCKMANAGER_RELEASE == status); + GNUNET_assert (99 == lock); + GNUNET_assert (0 == strcmp (domain_name, "GNUNET_LOCKMANAGER_TESTING")); + result = TEST_CLIENT2_SERVER_CRASH_SUCCESS; + GNUNET_SCHEDULER_add_delayed (TIME_REL_SECONDS (1), + &do_shutdown, + NULL); + break; + default: + GNUNET_assert (0); /* We should never reach here */ + } + +} + + +/** + * Testing function + * + * @param cls NULL + * @param tc the task context + */ +static void +test (void *cls, const struct GNUNET_SCHEDULER_TaskContext *tc) +{ + result = TEST_INIT; + handle = GNUNET_LOCKMANAGER_connect (config); + GNUNET_assert (NULL != handle); + handle2 = GNUNET_LOCKMANAGER_connect (config); + + request = GNUNET_LOCKMANAGER_acquire_lock (handle, + "GNUNET_LOCKMANAGER_TESTING", + 99, + &status_cb, + handle); + GNUNET_assert (NULL != request); + abort_task_id = GNUNET_SCHEDULER_add_delayed (TIME_REL_SECONDS (10), + &do_abort, + NULL); +} + + +/** + * Main point of test execution + */ +static void +run (void *cls, char *const *args, const char *cfgfile, + const struct GNUNET_CONFIGURATION_Handle *cfg) +{ + LOG (GNUNET_ERROR_TYPE_DEBUG, "Starting test...\n"); + config = GNUNET_CONFIGURATION_dup (cfg); + arm_pid = + GNUNET_OS_start_process (GNUNET_YES, NULL, NULL, "gnunet-service-arm", + "gnunet-service-arm", +#if VERBOSE_ARM + "-L", "DEBUG", +#endif + "-c", "test_lockmanager_api.conf", NULL); + + GNUNET_assert (NULL != arm_pid); + GNUNET_SCHEDULER_add_delayed (TIME_REL_SECONDS (3), + &test, + NULL); +} + + +/** + * Main function + */ +int main (int argc, char **argv) +{ + int ret; + + char *const argv2[] = { "test-lockmanager-api-servercrash", + "-c", "test_lockmanager_api.conf", +#if VERBOSE + "-L", "DEBUG", +#endif + NULL + }; + + struct GNUNET_GETOPT_CommandLineOption options[] = { + GNUNET_GETOPT_OPTION_END + }; + + GNUNET_log_setup ("test-lockmanager-api-servercrash", +#if VERBOSE + "DEBUG", +#else + "WARNING", +#endif + NULL); + + ret = + GNUNET_PROGRAM_run ((sizeof (argv2) / sizeof (char *)) - 1, argv2, + "test-lockmanager-api-servercrash", + "nohelp", options, &run, NULL); + + if (GNUNET_OK != ret) + { + LOG (GNUNET_ERROR_TYPE_WARNING, "run failed with error code %d\n", + ret); + return 1; + } + if (TEST_CLIENT2_SERVER_CRASH_SUCCESS != result) + { + LOG (GNUNET_ERROR_TYPE_WARNING, "test failed\n"); + return 1; + } + LOG (GNUNET_ERROR_TYPE_INFO, "test OK\n"); + return 0; +} |