yann MAGNIN
76aeea1fa5
Add change project name to Vhex. Update command handling, now we generate and hide the cache (and command block) during the compilation. Add documentations. Add manual pages. Add units tests. Update some modules.
65 lines
1.2 KiB
C
65 lines
1.2 KiB
C
#ifndef DEBUG
|
|
# include <history.h>
|
|
# include <syscalls.h>
|
|
#else
|
|
# include "history.h"
|
|
# include <stdlib.h>
|
|
#endif
|
|
#include <string.h>
|
|
#include <errno.h>
|
|
|
|
//---
|
|
// history_update()
|
|
// Add new history node to the chained list. This is a singly
|
|
// linked list, but the node insertion from the beginning.
|
|
//
|
|
// Exemple: add node A, B, C and D
|
|
// 1. A -> NULL
|
|
// 2. B -> A -> NULL
|
|
// 3. C -> B -> A -> NULL
|
|
// 4. D -> C -> B -> A -> NULL
|
|
//---
|
|
int history_update(struct node **list, const char *data)
|
|
{
|
|
void *swap;
|
|
|
|
if (list == NULL)
|
|
return (EFAULT);
|
|
swap = *list;
|
|
*list = (struct node *)malloc(sizeof(struct node));
|
|
if (*list == NULL){
|
|
*list = swap;
|
|
return (ENOMEM);
|
|
}
|
|
strcpy((void*)(*list)->data, data);
|
|
(*list)->next = swap;
|
|
return (0);
|
|
}
|
|
|
|
//
|
|
// history_get()
|
|
// primitive function which will return the data stored in
|
|
// the "offset" position in the list.
|
|
//
|
|
const void *history_get(struct node *list, off_t offset)
|
|
{
|
|
if (list == NULL)
|
|
return (NULL);
|
|
if (offset == 0)
|
|
return (list->data);
|
|
return (history_get(list->next, offset - 1));
|
|
}
|
|
|
|
//
|
|
// history_quit()
|
|
// Free all allocated memory.
|
|
//
|
|
void history_quit(struct node **list)
|
|
{
|
|
if (list == NULL || *list == NULL)
|
|
return;
|
|
history_quit(&(*list)->next);
|
|
free(*list);
|
|
*list = NULL;
|
|
}
|