Line data    Source code

       1              : #ifndef RAII_H
       2              : #define RAII_H
       3              : 
       4              : #include <stdlib.h>
       5              : #include <stdio.h>
       6              : #include <dirent.h>
       7              : #include "html_parser.h"
       8              : 
       9              : /**
      10              :  * Cleanup functions for GNU RAII attributes.
      11              :  * These are called when a variable with the __attribute__((cleanup(func))) goes out of scope.
      12              :  */
      13              : 
      14         4975 : static inline void free_ptr(void *ptr) {
      15         4975 :     void **p = (void **)ptr;
      16         4975 :     if (*p) {
      17         4923 :         free(*p);
      18         4923 :         *p = NULL;
      19              :     }
      20         4975 : }
      21              : 
      22          238 : static inline void fclose_ptr(void *ptr) {
      23          238 :     FILE **p = (FILE **)ptr;
      24          238 :     if (*p) {
      25          118 :         fclose(*p);
      26          118 :         *p = NULL;
      27              :     }
      28          238 : }
      29              : 
      30            2 : static inline void closedir_ptr(DIR **p) {
      31            2 :     if (p && *p) {
      32            1 :         closedir(*p);
      33            1 :         *p = NULL;
      34              :     }
      35            2 : }
      36              : 
      37              : #define RAII_STRING __attribute__((cleanup(free_ptr)))
      38              : #define RAII_FILE __attribute__((cleanup(fclose_ptr)))
      39              : #define RAII_DIR __attribute__((cleanup(closedir_ptr)))
      40              : 
      41              : /* To avoid circular dependencies with Config, we use a generic cleanup for it 
      42              :  * but it must be defined in each file that uses it or we use a macro. */
      43              : #define RAII_WITH_CLEANUP(func) __attribute__((cleanup(func)))
      44              : 
      45           17 : static inline void html_node_free_ptr(HtmlNode **p) {
      46           17 :     if (p && *p) { html_node_free(*p); *p = NULL; }
      47           17 : }
      48              : #define RAII_HTML_NODE __attribute__((cleanup(html_node_free_ptr)))
      49              : 
      50              : #endif // RAII_H