test

[my-code/api.git] / list / list.c

diff --git a/list/list.c b/list/list.c
index 221b2fb..063583c 100644 (file)
--- a/list/list.c
+++ b/list/list.c
@@ -6,23 +6,155 @@
 
 #include "list.h"
 
-int list_init(t_list *list) {
+int list_init(t_list *list,int outfd) {
 
-  list->
-  list->current=&(list->start);
+  dprintf(outfd,"[list] list initialization ...\n");
+
+  list->outfd=outfd;
+  list->start=NULL;
+  list_reset(list);
+
+  return L_SUCCESS;
+}
+
+int list_shutdown(t_list *list) {
+
+  if(list->start!=NULL) list_destroy(list);
+
+  dprintf(list->outfd,"[list] shutdown\n");
+
+  return L_SUCCESS;
+}
+
+int list_next(t_list *list) {
+
+  if(list->current->next==NULL) return L_NO_NEXT_ELEMENT;
+
+  list->current=list->current->next;
+
+  return L_SUCCESS;
+}
+
+int list_reset(t_list *list) {
+
+  list->current=list->start;
+
+  return L_SUCCESS;
+}
+
+int list_del_element(t_list *list,t_list_element *element) {
+
+  if(element==NULL) {
+    dprintf(list->outfd,"[list] empty element\n");
+    return L_INVALID_ELEMENT;
+  }
+
+  if(element->next!=NULL) element->next->prev=element->prev;
+  if(element->prev!=NULL) element->prev->next=element->next;
+  if(element==list->start) list->start=element->next;
+  list_reset(list);
+  if(element->data!=NULL) free(element->data);
+  free(element);
+  dprintf(list->outfd,"[list] element deleted\n");
+
+  return L_SUCCESS;
+}
+
+int list_del_current(t_list *list) {
+
+  return(list_del_element(list,list->current));
+}
+
+int list_destroy(t_list *list) {
+
+  if(list->start==NULL) {
+    dprintf(list->outfd,"[list] empty list\n");
+    return L_EMPTY_LIST;
+  }
+
+  list_reset(list);
+
+  while(list->current!=NULL) list_del_element(list,list->current);
 
   return L_SUCCESS;
 }
 
-int list_add_element(t_list *list,int nr,void *data,int len) {
+int list_search_data(t_list *list,void *data,int first_bytes) {
 
-  if(list->method&C_NUMBER) {
-    while(list->current->next!=NULL) {
-      if(list->current->number==nr) return L_EXISTS;
-      else list->current=list->current->next;
+  list_reset(list);
+
+  while(list->current!=NULL) {
+    if(first_bytes<=list->current->data_len)
+      if(!(memcmp(list->current->data,data,first_bytes))) return L_SUCCESS;
+    list_next(list);
+  }
+
+  return L_NO_SUCH_ELEMENT;
+}
+
+int list_add_element(t_list *list,void *data,int data_len) {
+
+  list_reset(list);
+
+  while(list->current!=NULL) {
+    if(data_len==list->current->data_len) {
+      if(!memcmp(list->current->data,data,data_len)) {
+        dprintf(list->outfd,"[list] element already in list\n");
+        return L_ELEMENT_IN_LIST;
+      }
     }
-    if(list->current->number==nr) return L_EXISTS;
+    if(list->current->next==NULL) {
+      list->current->next=(t_list_element *)malloc(sizeof(t_list_element));
+      if(list->current->next==NULL) {
+        dprintf(list->outfd,"[list] unable to allocate element memory\n");
+        return L_E_MEM;
+      }
+      list->current->next->prev=list->current;
+      list->current->next->next=NULL;
+      if((list->current->next->data=malloc(data_len))==NULL) {
+        dprintf(list->outfd,"[list] unable to allocate data memory\n");
+        return L_E_MEM;
+      }
+      memcpy(list->current->next->data,data,data_len);
+      list->current->next->data_len=data_len;
+
+      dprintf(list->outfd,"[list] element added\n");
 
-    /* new element */
-    if((list->current->next=(t_list *)malloc(sizeof(t_list)))==NULL) {
-      fprintf(stderr,"[list]
+      return L_SUCCESS;
+    }
+    else list_next(list);
+  }
+
+  /* if this is the first element */
+  list->start=(t_list_element *)malloc(sizeof(t_list_element));
+  if(list->start==NULL) {
+    dprintf(list->outfd,"[list] unable to allocate list element memory\n");
+    return L_E_MEM;
+  }
+  if((list->start->data=malloc(data_len))==NULL) {
+    dprintf(list->outfd,"[list] unable to allocate data memory\n");
+    return L_E_MEM;
+  }
+  memcpy(list->start->data,data,data_len);
+  list->start->data_len=data_len;
+  list->start->next=NULL;
+  list->start->prev=NULL;
+
+  dprintf(list->outfd,"[list] added initial element\n");
+
+  return L_SUCCESS;
+}
+
+int list_count(t_list *list) {
+
+  int count;
+
+  count=0;
+
+  list_reset(list);
+
+  if(list->current!=NULL) count++;
+  while(list_next(list)!=L_NO_NEXT_ELEMENT) count++;
+
+  return count;
+}