diff options
Diffstat (limited to 'src/slist.c')
-rw-r--r-- | src/slist.c | 138 |
1 files changed, 0 insertions, 138 deletions
diff --git a/src/slist.c b/src/slist.c deleted file mode 100644 index 8138159..0000000 --- a/src/slist.c +++ /dev/null @@ -1,138 +0,0 @@ -/* - * sydra - * - * sydra is a toolbox which allows you to set up multiple bidirectional - * Video/Audio streams from external locations. - * sydra has been written to be used for the Elevate Festival in Graz - * Austria in order to involve external locations to present themselves - * at the festival. - * Sydra is based on GStreamer and is written in C. - * - * - * Copyright (C) 2014 Christian Pointner <equinox@spreadspace.org> - * - * This file is part of sydra. - * - * sydra is free software: you can redistribute it and/or modify - * it under the terms of the GNU General Public License as published by - * the Free Software Foundation, either version 3 of the License, or - * any later version. - * - * sydra 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 sydra. If not, see <http://www.gnu.org/licenses/>. - * - * In addition, as a special exception, the copyright holders hereby - * grant permission for non-GPL-compatible GStreamer plugins to be used - * and distributed together with GStreamer and sydra. - * This permission goes above and beyond the permissions granted by the - * GPL license sydra is covered by. - */ - -#include <unistd.h> -#include <stdlib.h> - -#include "datatypes.h" - -#include "slist.h" - -slist_element_t* slist_get_last(slist_element_t* first) -{ - if(!first) - return NULL; - - while(first->next_) - first = first->next_; - - return first; -} - -int slist_init(slist_t* lst, void (*delete_element)(void*)) -{ - if(!lst || !delete_element) - return -1; - - lst->delete_element = delete_element; - lst->first_ = NULL; - - return 0; -} - -slist_element_t* slist_add(slist_t* lst, void* data) -{ - if(!lst || !data) - return NULL; - - slist_element_t* new_element = malloc(sizeof(slist_element_t)); - if(!new_element) - return NULL; - - new_element->data_ = data; - new_element->next_ = NULL; - - if(!lst->first_) - lst->first_ = new_element; - else - slist_get_last(lst->first_)->next_ = new_element; - - return new_element; -} - -void slist_remove(slist_t* lst, void* data) -{ - if(!lst || !lst->first_ || !data) - return; - - slist_element_t* tmp = lst->first_->next_; - slist_element_t* prev = lst->first_; - if(lst->first_->data_ == data) { - lst->first_ = tmp; - lst->delete_element(prev->data_); - free(prev); - } - else { - while(tmp) { - if(tmp->data_ == data) { - prev->next_ = tmp->next_; - lst->delete_element(tmp->data_); - free(tmp); - return; - } - prev = tmp; - tmp = tmp->next_; - } - } -} - -void slist_clear(slist_t* lst) -{ - if(!lst || !lst->first_) - return; - - do { - slist_element_t* deletee = lst->first_; - lst->first_ = lst->first_->next_; - lst->delete_element(deletee->data_); - free(deletee); - } - while(lst->first_); - - lst->first_ = NULL; -} - -int slist_length(slist_t* lst) -{ - if(!lst || !lst->first_) - return 0; - - int len = 0; - slist_element_t* tmp; - for(tmp = lst->first_; tmp; tmp = tmp->next_) - len++; - - return len; -} |