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/* ccapi/server/ccs_client.c */
/*
* Copyright 2006 Massachusetts Institute of Technology.
* All Rights Reserved.
*
* Export of this software from the United States of America may
* require a specific license from the United States Government.
* It is the responsibility of any person or organization contemplating
* export to obtain such a license before exporting.
*
* WITHIN THAT CONSTRAINT, permission to use, copy, modify, and
* distribute this software and its documentation for any purpose and
* without fee is hereby granted, provided that the above copyright
* notice appear in all copies and that both that copyright notice and
* this permission notice appear in supporting documentation, and that
* the name of M.I.T. not be used in advertising or publicity pertaining
* to distribution of the software without specific, written prior
* permission. Furthermore if you modify this software you must label
* your software as modified software and not distribute it in such a
* fashion that it might be confused with the original M.I.T. software.
* M.I.T. makes no representations about the suitability of
* this software for any purpose. It is provided "as is" without express
* or implied warranty.
*/
#include "ccs_common.h"
struct ccs_client_d {
ccs_pipe_t client_pipe;
/* The following arrays do not own their contents */
ccs_callbackref_array_t callbacks;
ccs_iteratorref_array_t iterators;
};
struct ccs_client_d ccs_client_initializer = { CCS_PIPE_NULL, NULL, NULL };
/* ------------------------------------------------------------------------ */
cc_int32 ccs_client_new (ccs_client_t *out_client,
ccs_pipe_t in_client_pipe)
{
cc_int32 err = ccNoError;
ccs_client_t client = NULL;
if (!out_client ) { err = cci_check_error (ccErrBadParam); }
if (!ccs_pipe_valid (in_client_pipe)) { err = cci_check_error (ccErrBadParam); }
if (!err) {
client = malloc (sizeof (*client));
if (client) {
*client = ccs_client_initializer;
} else {
err = cci_check_error (ccErrNoMem);
}
}
if (!err) {
err = ccs_callbackref_array_new (&client->callbacks);
}
if (!err) {
err = ccs_iteratorref_array_new (&client->iterators);
}
if (!err) {
err = ccs_pipe_copy (&client->client_pipe, in_client_pipe);
}
if (!err) {
*out_client = client;
client = NULL;
}
ccs_client_release (client);
return cci_check_error (err);
}
/* ------------------------------------------------------------------------ */
cc_int32 ccs_client_release (ccs_client_t io_client)
{
cc_int32 err = ccNoError;
if (!err && io_client) {
cc_uint64 i;
cc_uint64 callback_count = ccs_callbackref_array_count (io_client->callbacks);
cc_uint64 iterator_count = ccs_iteratorref_array_count (io_client->iterators);
for (i = 0; !err && i < callback_count; i++) {
ccs_callback_t callback = ccs_callbackref_array_object_at_index (io_client->callbacks, i);
cci_debug_printf ("%s: Invalidating callback reference %p.",
__FUNCTION__, callback);
ccs_callback_invalidate (callback);
}
for (i = 0; !err && i < iterator_count; i++) {
ccs_generic_list_iterator_t iterator = ccs_iteratorref_array_object_at_index (io_client->iterators, i);
cci_debug_printf ("%s: Invalidating iterator reference %p.",
__FUNCTION__, iterator);
ccs_generic_list_iterator_invalidate (iterator);
}
ccs_callbackref_array_release (io_client->callbacks);
ccs_iteratorref_array_release (io_client->iterators);
ccs_pipe_release (io_client->client_pipe);
free (io_client);
}
return cci_check_error (err);
}
/* ------------------------------------------------------------------------ */
cc_int32 ccs_client_add_callback (ccs_client_t io_client,
ccs_callback_t in_callback)
{
cc_int32 err = ccNoError;
if (!io_client ) { err = cci_check_error (ccErrBadParam); }
if (!in_callback) { err = cci_check_error (ccErrBadParam); }
if (!err) {
err = ccs_callbackref_array_insert (io_client->callbacks, in_callback,
ccs_callbackref_array_count (io_client->callbacks));
}
return cci_check_error (err);
}
/* ------------------------------------------------------------------------ */
cc_int32 ccs_client_remove_callback (ccs_client_t io_client,
ccs_callback_t in_callback)
{
cc_int32 err = ccNoError;
cc_uint32 found_callback = 0;
if (!io_client) { err = cci_check_error (ccErrBadParam); }
if (!err) {
cc_uint64 i;
cc_uint64 lock_count = ccs_callbackref_array_count (io_client->callbacks);
for (i = 0; !err && i < lock_count; i++) {
ccs_callback_t callback = ccs_callbackref_array_object_at_index (io_client->callbacks, i);
if (callback == in_callback) {
cci_debug_printf ("%s: Removing callback reference %p.", __FUNCTION__, callback);
found_callback = 1;
err = ccs_callbackref_array_remove (io_client->callbacks, i);
break;
}
}
}
if (!err && !found_callback) {
cci_debug_printf ("%s: WARNING! callback not found.", __FUNCTION__);
}
return cci_check_error (err);
}
/* ------------------------------------------------------------------------ */
cc_int32 ccs_client_add_iterator (ccs_client_t io_client,
ccs_generic_list_iterator_t in_iterator)
{
cc_int32 err = ccNoError;
if (!io_client ) { err = cci_check_error (ccErrBadParam); }
if (!in_iterator) { err = cci_check_error (ccErrBadParam); }
if (!err) {
err = ccs_iteratorref_array_insert (io_client->iterators, in_iterator,
ccs_iteratorref_array_count (io_client->iterators));
}
return cci_check_error (err);
}
/* ------------------------------------------------------------------------ */
cc_int32 ccs_client_remove_iterator (ccs_client_t io_client,
ccs_generic_list_iterator_t in_iterator)
{
cc_int32 err = ccNoError;
cc_uint32 found_iterator = 0;
if (!io_client) { err = cci_check_error (ccErrBadParam); }
if (!err) {
cc_uint64 i;
cc_uint64 lock_count = ccs_iteratorref_array_count (io_client->iterators);
for (i = 0; !err && i < lock_count; i++) {
ccs_generic_list_iterator_t iterator = ccs_iteratorref_array_object_at_index (io_client->iterators, i);
if (iterator == in_iterator) {
cci_debug_printf ("%s: Removing iterator reference %p.", __FUNCTION__, iterator);
found_iterator = 1;
err = ccs_iteratorref_array_remove (io_client->iterators, i);
break;
}
}
}
if (!err && !found_iterator) {
cci_debug_printf ("%s: WARNING! iterator not found.", __FUNCTION__);
}
return cci_check_error (err);
}
/* ------------------------------------------------------------------------ */
cc_int32 ccs_client_uses_pipe (ccs_client_t in_client,
ccs_pipe_t in_pipe,
cc_uint32 *out_uses_pipe)
{
cc_int32 err = ccNoError;
if (!in_client ) { err = cci_check_error (ccErrBadParam); }
if (!in_pipe ) { err = cci_check_error (ccErrBadParam); }
if (!out_uses_pipe) { err = cci_check_error (ccErrBadParam); }
if (!err) {
err = ccs_pipe_compare (in_client->client_pipe, in_pipe, out_uses_pipe);
}
return cci_check_error (err);
}
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