From 94777894a95044c5253ec081503085ab9947cfec Mon Sep 17 00:00:00 2001
From: Rob Landley <rob@landley.net>
Date: Sat, 25 May 2019 19:48:33 -0500
Subject: Move notify.c into portability.c (collate the #ifdefs), move global
 variables into a structure passed as arguments, add x prefix to functions
 that can fail, add overflow test.

---
 lib/notify.c | 87 ------------------------------------------------------------
 1 file changed, 87 deletions(-)
 delete mode 100644 lib/notify.c

(limited to 'lib/notify.c')

diff --git a/lib/notify.c b/lib/notify.c
deleted file mode 100644
index a7993e2a..00000000
--- a/lib/notify.c
+++ /dev/null
@@ -1,87 +0,0 @@
-#include "toys.h"
-
-static char **paths;
-static int *fds;
-static int count;
-
-#ifdef __APPLE__
-
-#include <sys/event.h>
-
-static int kq = -1;
-
-void notify_init(int max)
-{
-  if ((kq = kqueue()) == -1) perror_exit("kqueue");
-  paths = xmalloc(max * sizeof(char *));
-  fds = xmalloc(max * sizeof(int));
-}
-
-int notify_add(int fd, char *path)
-{
-  struct kevent event;
-
-  EV_SET(&event, fd, EVFILT_VNODE, EV_ADD|EV_CLEAR, NOTE_WRITE, 0, NULL);
-  if (kevent(kq, &event, 1, NULL, 0, NULL) == -1 || event.flags & EV_ERROR)
-    return -1;
-  paths[count] = path;
-  fds[count++] = fd;
-  return 0;
-}
-
-int notify_wait(char **path)
-{
-  struct kevent event;
-  int i;
-
-  for (;;) {
-    if (kevent(kq, NULL, 0, &event, 1, NULL) != -1) {
-      // We get the fd for free, but still have to search for the path.
-      for (i=0; i<count; i++) if (fds[i]==event.ident) {
-        *path = paths[i];
-        return event.ident;
-      }
-    }
-  }
-}
-
-#else
-
-#include <sys/inotify.h>
-
-static int ffd = -1;
-static int *ids;
-
-void notify_init(int max)
-{
-  if ((ffd = inotify_init()) < 0) perror_exit("inotify_init");
-  fds = xmalloc(max * sizeof(int));
-  ids = xmalloc(max * sizeof(int));
-  paths = xmalloc(max * sizeof(char *));
-}
-
-int notify_add(int fd, char *path)
-{
-  ids[count] = inotify_add_watch(ffd, path, IN_MODIFY);
-  if (ids[count] == -1) return -1;
-  paths[count] = path;
-  fds[count++] = fd;
-  return 0;
-}
-
-int notify_wait(char **path)
-{
-  struct inotify_event ev;
-  int i;
-
-  for (;;) {
-    if (sizeof(ev)!=read(ffd, &ev, sizeof(ev))) perror_exit("inotify");
-
-    for (i=0; i<count; i++) if (ev.wd==ids[i]) {
-      *path = paths[i];
-      return fds[i];
-    }
-  }
-}
-
-#endif
-- 
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