added fast(er) list to be included (just in header) + small bug fix

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

diff --git a/list/list.c b/list/list.c
index 13493e6..79b41d2 100644 (file)
--- a/list/list.c
+++ b/list/list.c
@@ -28,7 +28,8 @@ int list_shutdown(t_list *list) {
 
 int list_next(t_list *list) {
 
-  if(list->current->next==NULL) return L_NO_NEXT_ELEMENT;
+  if(list->current->next==NULL)
+       return L_NO_NEXT_ELEMENT;
 
   list->current=list->current->next;
 
@@ -53,7 +54,7 @@ int list_del_element(t_list *list,t_list_element *element) {
   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);
+  if((element->data!=NULL)&&(element->data_len)) free(element->data);
   free(element);
   dprintf(list->outfd,"[list] element deleted\n");
 
@@ -75,6 +76,7 @@ int list_destroy(t_list *list) {
   list_reset(list);
 
   while(list->current!=NULL) list_del_element(list,list->current);
+  list->start=NULL;
 
   return L_SUCCESS;
 }
@@ -83,6 +85,11 @@ int list_search_data(t_list *list,void *data,int first_bytes) {
 
   list_reset(list);
 
+  if(list->start==NULL) {
+    dprintf(list->outfd,"[list] empty list\n");
+    return L_EMPTY_LIST;
+  }
+
   do {
     if(list->current!=NULL)
       if(first_bytes<=list->current->data_len)
@@ -92,6 +99,81 @@ int list_search_data(t_list *list,void *data,int first_bytes) {
   return L_NO_SUCH_ELEMENT;
 }
 
+int list_add_immediate_ptr(t_list *list,void *ptr) {
+
+  /* if this is the first element */
+  if(list->start==NULL) {
+    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;
+    }
+    list->start->data=ptr;
+    list->start->data_len=0;
+    list->start->next=NULL;
+    list->start->prev=NULL;
+    list->current=list->start;
+    dprintf(list->outfd,"[list] added initial element\n");
+    return L_SUCCESS;
+  }
+
+  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;
+  list->current->next->data=ptr;
+  list->current->next->data_len=0;
+
+  list->current=list->current->next;
+
+  return L_SUCCESS;
+
+}
+
+int list_add_immediate(t_list *list,void *data,int data_len) {
+
+  /* if this is the first element */
+  if(list->start==NULL) {
+    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;
+    list->current=list->start;
+    dprintf(list->outfd,"[list] added initial element\n");
+    return L_SUCCESS;
+  }
+
+  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;
+
+  list->current=list->current->next;
+
+  return L_SUCCESS;
+}
+
 int list_add_element(t_list *list,void *data,int data_len) {
 
   list_reset(list);
@@ -118,6 +200,8 @@ int list_add_element(t_list *list,void *data,int data_len) {
       memcpy(list->current->next->data,data,data_len);
       list->current->next->data_len=data_len;
 
+      list->current=list->current->next;
+
       dprintf(list->outfd,"[list] element added\n");
 
       return L_SUCCESS;
@@ -140,6 +224,8 @@ int list_add_element(t_list *list,void *data,int data_len) {
   list->start->next=NULL;
   list->start->prev=NULL;
 
+  list->current=list->start;
+
   dprintf(list->outfd,"[list] added initial element\n");
 
   return L_SUCCESS;