edit lock

git-svn-id: http://opensvn.csie.org/pttbbs/pttbbs/trunk/pttbbs@493 63ad8ddf-47c3-0310-b6dd-a9e9d9715204

1 files changed, 38 insertions, 1 deletions

diff --git a/mbbsd/edit.c b/mbbsd/edit.c
index 589be70d..db335241 100644
--- a/mbbsd/edit.c
+++ b/mbbsd/edit.c
@@ -1,4 +1,4 @@
-/* $Id: edit.c,v 1.16 2002/08/20 02:42:36 in2 Exp $ */
+/* $Id: edit.c,v 1.17 2002/08/25 07:13:53 in2 Exp $ */
 #include "bbs.h"
 typedef struct textline_t {
     struct textline_t *prev;
@@ -2280,3 +2280,40 @@ vedit(char *fpath, int saveheader, int *islocal)
 	}
     }
 }
+
+void editlock(char *fpath)
+{
+    char    fn[256];
+    FILE    *fp;
+    snprintf(fn, sizeof(fn), "%s.lock", fpath);
+    if( (fp = fopen(fn, "w")) != NULL ){
+	fprintf(fp, "%d\n", currpid);
+	fclose(fp);
+    }
+}
+
+void editunlock(char *fpath)
+{
+    char    fn[256];
+    snprintf(fn, sizeof(fn), "%s.lock", fpath);
+    unlink(fn);
+}
+
+int iseditlocking(char *fpath, char *action)
+{
+    char    fn[256];
+    FILE    *fp;
+    snprintf(fn, sizeof(fn), "%s.lock", fpath);
+    if( (fp = fopen(fn, "r")) != NULL ){
+	int     pid;
+	fscanf(fp, "%d", &pid);
+	fclose(fp);
+	if( kill(pid, 0) >= 0 ){
+	    vmsg("文章編修中, 暫時無法%s", action);
+	    return 1;
+	}
+	else
+	    unlink(fn);
+    }
+    return 0;
+}