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authorMattias Andrée <maandree@kth.se>2017-11-05 00:09:50 +0100
committerMattias Andrée <maandree@kth.se>2017-11-05 00:09:50 +0100
commit9e8dec188d55ca1f0a3b33acab702ced8ed07a18 (patch)
treecbb43c22e72674dc672e645e6596358e3868568e /src/mds-server/client.c
parenttypo (diff)
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Work on changing style, and an important typo fix
Signed-off-by: Mattias Andrée <maandree@kth.se>
Diffstat (limited to '')
-rw-r--r--src/mds-server/client.c409
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;
}
-