diff options
| -rw-r--r-- | src/calcurse.h | 4 | ||||
| -rw-r--r-- | src/note.c | 113 |
2 files changed, 117 insertions, 0 deletions
diff --git a/src/calcurse.h b/src/calcurse.h index adf9d2d..956010d 100644 --- a/src/calcurse.h +++ b/src/calcurse.h @@ -145,6 +145,9 @@ #define KEYS_LABELEN 8 /* length of command description */ #define KEYS_CMDS_PER_LINE 6 /* max number of commands per line */ +/* Size of the hash table the note garbage collector uses. */ +#define NOTE_GC_HSIZE 1024 + #define ERROR_MSG(...) do { \ char msg[BUFSIZ]; \ int len; \ @@ -754,6 +757,7 @@ void edit_note (char **, char *); void view_note (char *, char *); void erase_note (char **); void note_read (char *, FILE *); +void note_gc (void); /* notify.c */ int notify_time_left (void); @@ -35,10 +35,17 @@ */ #include <unistd.h> +#include <dirent.h> #include "calcurse.h" #include "sha1.h" +struct note_gc_hash { + char *hash; + char buf[MAX_NOTESIZ + 1]; + HTABLE_ENTRY (note_gc_hash); +}; + /* Edit a note with an external editor. */ void edit_note (char **note, char *editor) @@ -120,3 +127,109 @@ note_read (char *buffer, FILE *fp) while (getc (fp) != ' '); buffer[MAX_NOTESIZ] = '\0'; } + +static void +note_gc_extract_key (struct note_gc_hash *data, char **key, int *len) +{ + *key = data->hash; + *len = strlen (data->hash); +} + +static int +note_gc_cmp (struct note_gc_hash *a, struct note_gc_hash *b) +{ + return strcmp (a->hash, b->hash); +} + +/* Spot and unlink unused note files. */ +void +note_gc (void) +{ + HTABLE_HEAD (htp, NOTE_GC_HSIZE, note_gc_hash) gc_htable = + HTABLE_INITIALIZER (&gc_htable); + struct note_gc_hash *hp; + DIR *dirp; + struct dirent *dp; + llist_item_t *i; + struct note_gc_hash tmph; + char notepath[BUFSIZ]; + + if (!(dirp = opendir (path_notes))) + return; + + /* Insert all note file names into a hash table. */ + HTABLE_GENERATE (htp, note_gc_hash, note_gc_extract_key, note_gc_cmp); + do + { + if ((dp = readdir (dirp)) && *(dp->d_name) != '.') + { + hp = mem_malloc (sizeof (struct note_gc_hash)); + + strncpy (hp->buf, dp->d_name, MAX_NOTESIZ + 1); + hp->hash = hp->buf; + + HTABLE_INSERT (htp, &gc_htable, hp); + } + } + while (dp); + + closedir (dirp); + + /* Remove hashes that are actually in use. */ + LLIST_TS_FOREACH (&alist_p, i) + { + struct apoint *apt = LLIST_GET_DATA (i); + if (apt->note) + { + tmph.hash = apt->note; + free (HTABLE_REMOVE (htp, &gc_htable, &tmph)); + } + } + + LLIST_FOREACH (&eventlist, i) + { + struct event *ev = LLIST_GET_DATA (i); + if (ev->note) + { + tmph.hash = ev->note; + free (HTABLE_REMOVE (htp, &gc_htable, &tmph)); + } + } + + LLIST_TS_FOREACH (&recur_alist_p, i) + { + struct recur_apoint *rapt = LLIST_GET_DATA (i); + if (rapt->note) + { + tmph.hash = rapt->note; + free (HTABLE_REMOVE (htp, &gc_htable, &tmph)); + } + } + + LLIST_FOREACH (&recur_elist, i) + { + struct recur_event *rev = LLIST_GET_DATA (i); + if (rev->note) + { + tmph.hash = rev->note; + free (HTABLE_REMOVE (htp, &gc_htable, &tmph)); + } + } + + LLIST_FOREACH (&todolist, i) + { + struct todo *todo = LLIST_GET_DATA (i); + if (todo->note) + { + tmph.hash = todo->note; + free (HTABLE_REMOVE (htp, &gc_htable, &tmph)); + } + } + + /* Unlink unused note files. */ + HTABLE_FOREACH (hp, htp, &gc_htable) + { + snprintf (notepath, BUFSIZ, "%s%s", path_notes, hp->hash); + unlink (notepath); + } +} |