diff options
Diffstat (limited to 'src/mds-server/client.c')
| -rw-r--r-- | src/mds-server/client.c | 409 |
1 files changed, 202 insertions, 207 deletions
diff --git a/src/mds-server/client.c b/src/mds-server/client.c index 749a6ca..ad7104b 100644 --- a/src/mds-server/client.c +++ b/src/mds-server/client.c @@ -44,22 +44,23 @@ * * @param this Memory slot in which to store the new client information */ -void client_initialise(client_t* restrict this) +void +client_initialise(client_t *restrict this) { - this->list_entry = -1; - this->socket_fd = -1; - this->open = 0; - this->id = 0; - this->mutex_created = 0; - this->interception_conditions = NULL; - this->interception_conditions_count = 0; - this->multicasts = NULL; - this->multicasts_count = 0; - this->send_pending = NULL; - this->send_pending_size = 0; - this->modify_message = NULL; - this->modify_mutex_created = 0; - this->modify_cond_created = 0; + this->list_entry = -1; + this->socket_fd = -1; + this->open = 0; + this->id = 0; + this->mutex_created = 0; + this->interception_conditions = NULL; + this->interception_conditions_count = 0; + this->multicasts = NULL; + this->multicasts_count = 0; + this->send_pending = NULL; + this->send_pending_size = 0; + this->modify_message = NULL; + this->modify_mutex_created = 0; + this->modify_cond_created = 0; } @@ -75,25 +76,26 @@ void client_initialise(client_t* restrict this) * @param this The client information * @return Zero on success, -1 on error */ -int client_initialise_threading(client_t* restrict this) +int +client_initialise_threading(client_t *restrict this) { - /* Store the thread so that other threads can kill it. */ - this->thread = pthread_self(); - - /* Create mutex to make sure two thread to not try to send - messages concurrently, and other client local actions. */ - fail_if ((errno = pthread_mutex_init(&(this->mutex), NULL))); - this->mutex_created = 1; - - /* Create mutex and codition for multicast interception replies. */ - fail_if ((errno = pthread_mutex_init(&(this->modify_mutex), NULL))); - this->modify_mutex_created = 1; - fail_if ((errno = pthread_cond_init(&(this->modify_cond), NULL))); - this->modify_cond_created = 1; - - return 0; + /* Store the thread so that other threads can kill it. */ + this->thread = pthread_self(); + + /* Create mutex to make sure two thread to not try to send + messages concurrently, and other client local actions. */ + fail_if ((errno = pthread_mutex_init(&(this->mutex), NULL))); + this->mutex_created = 1; + + /* Create mutex and codition for multicast interception replies. */ + fail_if ((errno = pthread_mutex_init(&(this->modify_mutex), NULL))); + this->modify_mutex_created = 1; + fail_if ((errno = pthread_cond_init(&(this->modify_cond), NULL))); + this->modify_cond_created = 1; + + return 0; fail: - return -1; + return -1; } @@ -102,36 +104,33 @@ int client_initialise_threading(client_t* restrict this) * * @param this The client information */ -void client_destroy(client_t* restrict this) +void +client_destroy(client_t *restrict this) { - if (this->interception_conditions != NULL) - { - size_t i; - for (i = 0; i < this->interception_conditions_count; i++) - free(this->interception_conditions[i].condition); - free(this->interception_conditions); - } - if (this->mutex_created) - pthread_mutex_destroy(&(this->mutex)); - mds_message_destroy(&(this->message)); - if (this->multicasts != NULL) - { - size_t i; - for (i = 0; i < this->multicasts_count; i++) - multicast_destroy(this->multicasts + i); - free(this->multicasts); - } - free(this->send_pending); - if (this->modify_message != NULL) - { - mds_message_destroy(this->modify_message); - free(this->modify_message); - } - if (this->modify_mutex_created) - pthread_mutex_destroy(&(this->modify_mutex)); - if (this->modify_cond_created) - pthread_cond_destroy(&(this->modify_cond)); - free(this); + size_t i; + if (this->interception_conditions) { + for (i = 0; i < this->interception_conditions_count; i++) + free(this->interception_conditions[i].condition); + free(this->interception_conditions); + } + if (this->mutex_created) + pthread_mutex_destroy(&(this->mutex)); + mds_message_destroy(&(this->message)); + if (this->multicasts) { + for (i = 0; i < this->multicasts_count; i++) + multicast_destroy(this->multicasts + i); + free(this->multicasts); + } + free(this->send_pending); + if (this->modify_message) { + mds_message_destroy(this->modify_message); + free(this->modify_message); + } + if (this->modify_mutex_created) + pthread_mutex_destroy(&(this->modify_mutex)); + if (this->modify_cond_created) + pthread_cond_destroy(&(this->modify_cond)); + free(this); } @@ -141,19 +140,20 @@ void client_destroy(client_t* restrict this) * @param this The client information * @return The number of bytes to allocate to the output buffer */ -size_t client_marshal_size(const client_t* restrict this) +size_t +client_marshal_size(const client_t *restrict this) { - size_t i, n = sizeof(ssize_t) + 3 * sizeof(int) + sizeof(uint64_t) + 5 * sizeof(size_t); - - n += mds_message_marshal_size(&(this->message)); - for (i = 0; i < this->interception_conditions_count; i++) - n += interception_condition_marshal_size(this->interception_conditions + i); - for (i = 0; i < this->multicasts_count; i++) - n += multicast_marshal_size(this->multicasts + i); - n += this->send_pending_size * sizeof(char); - n += this->modify_message == NULL ? 0 : mds_message_marshal_size(this->modify_message); - - return n; + size_t i, n = sizeof(ssize_t) + 3 * sizeof(int) + sizeof(uint64_t) + 5 * sizeof(size_t); + + n += mds_message_marshal_size(&(this->message)); + for (i = 0; i < this->interception_conditions_count; i++) + n += interception_condition_marshal_size(this->interception_conditions + i); + for (i = 0; i < this->multicasts_count; i++) + n += multicast_marshal_size(this->multicasts + i); + n += this->send_pending_size * sizeof(char); + n += !this->modify_message ? 0 : mds_message_marshal_size(this->modify_message); + + return n; } @@ -164,34 +164,35 @@ size_t client_marshal_size(const client_t* restrict this) * @param data Output buffer for the marshalled data * @return The number of bytes that have been written (everything will be written) */ -size_t client_marshal(const client_t* restrict this, char* restrict data) +size_t +client_marshal(const client_t *restrict this, char *restrict data) { - size_t i, n; - buf_set_next(data, int, CLIENT_T_VERSION); - buf_set_next(data, ssize_t, this->list_entry); - buf_set_next(data, int, this->socket_fd); - buf_set_next(data, int, this->open); - buf_set_next(data, uint64_t, this->id); - n = mds_message_marshal_size(&(this->message)); - buf_set_next(data, size_t, n); - if (n > 0) - mds_message_marshal(&(this->message), data); - data += n / sizeof(char); - buf_set_next(data, size_t, this->interception_conditions_count); - for (i = 0; i < this->interception_conditions_count; i++) - data += n = interception_condition_marshal(this->interception_conditions + i, data) / sizeof(char); - buf_set_next(data, size_t, this->multicasts_count); - for (i = 0; i < this->multicasts_count; i++) - data += multicast_marshal(this->multicasts + i, data) / sizeof(char); - buf_set_next(data, size_t, this->send_pending_size); - if (this->send_pending_size > 0) - memcpy(data, this->send_pending, this->send_pending_size * sizeof(char)); - data += this->send_pending_size; - n = this->modify_message == NULL ? 0 : mds_message_marshal_size(this->modify_message); - buf_set_next(data, size_t, n); - if (this->modify_message != NULL) - mds_message_marshal(this->modify_message, data); - return client_marshal_size(this); + size_t i, n; + buf_set_next(data, int, CLIENT_T_VERSION); + buf_set_next(data, ssize_t, this->list_entry); + buf_set_next(data, int, this->socket_fd); + buf_set_next(data, int, this->open); + buf_set_next(data, uint64_t, this->id); + n = mds_message_marshal_size(&(this->message)); + buf_set_next(data, size_t, n); + if (n > 0) + mds_message_marshal(&(this->message), data); + data += n / sizeof(char); + buf_set_next(data, size_t, this->interception_conditions_count); + for (i = 0; i < this->interception_conditions_count; i++) + data += n = interception_condition_marshal(this->interception_conditions + i, data) / sizeof(char); + buf_set_next(data, size_t, this->multicasts_count); + for (i = 0; i < this->multicasts_count; i++) + data += multicast_marshal(this->multicasts + i, data) / sizeof(char); + buf_set_next(data, size_t, this->send_pending_size); + if (this->send_pending_size > 0) + memcpy(data, this->send_pending, this->send_pending_size * sizeof(char)); + data += this->send_pending_size; + n = !this->modify_message ? 0 : mds_message_marshal_size(this->modify_message); + buf_set_next(data, size_t, n); + if (this->modify_message) + mds_message_marshal(this->modify_message, data); + return client_marshal_size(this); } @@ -202,122 +203,116 @@ size_t client_marshal(const client_t* restrict this, char* restrict data) * @param data In buffer with the marshalled data * @return Zero on error, `errno` will be set accordingly, otherwise the number of read bytes */ -size_t client_unmarshal(client_t* restrict this, char* restrict data) +size_t +client_unmarshal(client_t *restrict this, char *restrict data) { - size_t i, n, rc = sizeof(ssize_t) + 3 * sizeof(int) + sizeof(uint64_t) + 5 * sizeof(size_t); - int saved_errno, stage = 0; - this->interception_conditions = NULL; - this->multicasts = NULL; - this->send_pending = NULL; - this->mutex_created = 0; - this->modify_mutex_created = 0; - this->modify_cond_created = 0; - this->multicasts_count = 0; - /* buf_get_next(data, int, CLIENT_T_VERSION); */ - buf_next(data, int, 1); - buf_get_next(data, ssize_t, this->list_entry); - buf_get_next(data, int, this->socket_fd); - buf_get_next(data, int, this->open); - buf_get_next(data, uint64_t, this->id); - buf_get_next(data, size_t, n); - if (n > 0) - fail_if (mds_message_unmarshal(&(this->message), data)); - stage++; - data += n / sizeof(char); - rc += n; - buf_get_next(data, size_t, this->interception_conditions_count); - fail_if (xmalloc(this->interception_conditions, - this->interception_conditions_count, interception_condition_t)); - for (i = 0; i < this->interception_conditions_count; i++) - { - n = interception_condition_unmarshal(this->interception_conditions + i, data); - if (n == 0) - { - this->interception_conditions_count = i - 1; - fail_if (1); + size_t i, n, m, rc = sizeof(ssize_t) + 3 * sizeof(int) + sizeof(uint64_t) + 5 * sizeof(size_t); + int saved_errno, stage = 0; + this->interception_conditions = NULL; + this->multicasts = NULL; + this->send_pending = NULL; + this->mutex_created = 0; + this->modify_mutex_created = 0; + this->modify_cond_created = 0; + this->multicasts_count = 0; + /* buf_get_next(data, int, CLIENT_T_VERSION); */ + buf_next(data, int, 1); + buf_get_next(data, ssize_t, this->list_entry); + buf_get_next(data, int, this->socket_fd); + buf_get_next(data, int, this->open); + buf_get_next(data, uint64_t, this->id); + buf_get_next(data, size_t, n); + if (n > 0) + fail_if (mds_message_unmarshal(&(this->message), data)); + stage++; + data += n / sizeof(char); + rc += n; + buf_get_next(data, size_t, this->interception_conditions_count); + fail_if (xmalloc(this->interception_conditions, this->interception_conditions_count, interception_condition_t)); + for (i = 0; i < this->interception_conditions_count; i++) { + n = interception_condition_unmarshal(this->interception_conditions + i, data); + if (!n) { + this->interception_conditions_count = i - 1; + fail_if (1); + } + data += n / sizeof(char); + rc += n; } - data += n / sizeof(char); - rc += n; - } - buf_get_next(data, size_t, n); - fail_if (xmalloc(this->multicasts, n, multicast_t)); - for (i = 0; i < n; i++, this->multicasts_count++) - { - size_t m = multicast_unmarshal(this->multicasts + i, data); - fail_if (m == 0); - data += m / sizeof(char); - rc += m; - } - buf_get_next(data, size_t, this->send_pending_size); - if (this->send_pending_size > 0) - { - fail_if (xmemdup(this->send_pending, data, this->send_pending_size, char)); - data += this->send_pending_size, rc += this->send_pending_size * sizeof(char); - } - buf_get_next(data, size_t, n); - if (n > 0) - mds_message_unmarshal(this->modify_message, data); - else - this->modify_message = NULL; - rc += n * sizeof(char); - return rc; - - fail: - saved_errno = errno; - if (stage == 0) - goto done_failing; - mds_message_destroy(&(this->message)); - for (i = 0; i < this->interception_conditions_count; i++) - free(this->interception_conditions[i].condition); - free(this->interception_conditions); - for (i = 0; i < this->multicasts_count; i++) - multicast_destroy(this->multicasts + i); - free(this->multicasts); - free(this->send_pending); - if (this->modify_message != NULL) - { - mds_message_destroy(this->modify_message); - free(this->modify_message); - } - done_failing: - return errno = saved_errno, (size_t)0; + buf_get_next(data, size_t, n); + fail_if (xmalloc(this->multicasts, n, multicast_t)); + for (i = 0; i < n; i++, this->multicasts_count++) { + m = multicast_unmarshal(this->multicasts + i, data); + fail_if (!m); + data += m / sizeof(char); + rc += m; + } + buf_get_next(data, size_t, this->send_pending_size); + if (this->send_pending_size > 0) { + fail_if (xmemdup(this->send_pending, data, this->send_pending_size, char)); + data += this->send_pending_size, rc += this->send_pending_size * sizeof(char); + } + buf_get_next(data, size_t, n); + if (n > 0) + mds_message_unmarshal(this->modify_message, data); + else + this->modify_message = NULL; + rc += n * sizeof(char); + return rc; + +fail: + saved_errno = errno; + if (!stage) + goto done_failing; + mds_message_destroy(&(this->message)); + for (i = 0; i < this->interception_conditions_count; i++) + free(this->interception_conditions[i].condition); + free(this->interception_conditions); + for (i = 0; i < this->multicasts_count; i++) + multicast_destroy(this->multicasts + i); + free(this->multicasts); + free(this->send_pending); + if (this->modify_message) { + mds_message_destroy(this->modify_message); + free(this->modify_message); + } +done_failing: + return errno = saved_errno, (size_t)0; } + /** * Pretend to unmarshal client information * * @param data In buffer with the marshalled data * @return The number of read bytes */ -size_t client_unmarshal_skip(char* restrict data) +size_t +client_unmarshal_skip(char *restrict data) { - size_t n, c, rc = sizeof(ssize_t) + 3 * sizeof(int) + sizeof(uint64_t) + 5 * sizeof(size_t); - buf_next(data, int, 1); - buf_next(data, ssize_t, 1); - buf_next(data, int, 2); - buf_next(data, uint64_t, 1); - buf_get_next(data, size_t, n); - data += n / sizeof(char); - rc += n; - buf_get_next(data, size_t, c); - while (c--) - { - n = interception_condition_unmarshal_skip(data); - data += n / sizeof(char); - rc += n; - } - buf_get_next(data, size_t, c); - while (c--) - { - n = multicast_unmarshal_skip(data); - data += n / sizeof(char); - rc += n; - } - buf_get_next(data, size_t, n); - data += n; - rc += n * sizeof(char); - buf_get_next(data, size_t, n); - rc += n * sizeof(char); - return rc; + size_t n, c, rc = sizeof(ssize_t) + 3 * sizeof(int) + sizeof(uint64_t) + 5 * sizeof(size_t); + buf_next(data, int, 1); + buf_next(data, ssize_t, 1); + buf_next(data, int, 2); + buf_next(data, uint64_t, 1); + buf_get_next(data, size_t, n); + data += n / sizeof(char); + rc += n; + buf_get_next(data, size_t, c); + while (c--) { + n = interception_condition_unmarshal_skip(data); + data += n / sizeof(char); + rc += n; + } + buf_get_next(data, size_t, c); + while (c--) { + n = multicast_unmarshal_skip(data); + data += n / sizeof(char); + rc += n; + } + buf_get_next(data, size_t, n); + data += n; + rc += n * sizeof(char); + buf_get_next(data, size_t, n); + rc += n * sizeof(char); + return rc; } - |