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-rw-r--r--src/calcurse.h4
-rw-r--r--src/note.c113
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);
diff --git a/src/note.c b/src/note.c
index db5c45a..2fd022a 100644
--- a/src/note.c
+++ b/src/note.c
@@ -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);
+ }
+}