libubox: drop legacy json-c support

[project/libubox.git] / uloop.h

diff --git a/uloop.h b/uloop.h
index a6165af..7564514 100644 (file)
--- a/uloop.h
+++ b/uloop.h
@@ -1,28 +1,28 @@
 /*
- *   Copyright (C) 2010 Felix Fietkau <nbd@openwrt.org>
+ * uloop - event loop implementation
  *
- *   This program is free software; you can redistribute it and/or modify
- *   it under the terms of the GNU General Public License as published by
- *   the Free Software Foundation; either version 2 of the License, or
- *   (at your option) any later version.
+ * Copyright (C) 2010-2013 Felix Fietkau <nbd@openwrt.org>
  *
- *   This program is distributed in the hope that it will be useful,
- *   but WITHOUT ANY WARRANTY; without even the implied warranty of
- *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- *   GNU General Public License for more details.
- *
- *   You should have received a copy of the GNU General Public License
- *   along with this program; if not, write to the Free Software
- *   Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307, USA.
+ * Permission to use, copy, modify, and/or distribute this software for any
+ * purpose with or without fee is hereby granted, provided that the above
+ * copyright notice and this permission notice appear in all copies.
  *
+ * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
+ * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
+ * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
+ * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
+ * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
+ * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
+ * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
  */
-
 #ifndef _ULOOP_H__
 #define _ULOOP_H__
 
 #include <sys/time.h>
+#include <sys/types.h>
 #include <stdbool.h>
 #include <stdint.h>
+#include <signal.h>
 
 #if defined(__APPLE__) || defined(__FreeBSD__)
 #define USE_KQUEUE
@@ -30,17 +30,31 @@
 #define USE_EPOLL
 #endif
 
+#include "list.h"
+
 struct uloop_fd;
 struct uloop_timeout;
+struct uloop_process;
 
 typedef void (*uloop_fd_handler)(struct uloop_fd *u, unsigned int events);
 typedef void (*uloop_timeout_handler)(struct uloop_timeout *t);
+typedef void (*uloop_process_handler)(struct uloop_process *c, int ret);
 
 #define ULOOP_READ             (1 << 0)
 #define ULOOP_WRITE            (1 << 1)
 #define ULOOP_EDGE_TRIGGER     (1 << 2)
 #define ULOOP_BLOCKING         (1 << 3)
 
+#define ULOOP_EVENT_MASK       (ULOOP_READ | ULOOP_WRITE)
+
+/* internal flags */
+#define ULOOP_EVENT_BUFFERED   (1 << 4)
+#ifdef USE_KQUEUE
+#define ULOOP_EDGE_DEFER       (1 << 5)
+#endif
+
+#define ULOOP_ERROR_CB         (1 << 6)
+
 struct uloop_fd
 {
        uloop_fd_handler cb;
@@ -48,21 +62,29 @@ struct uloop_fd
        bool eof;
        bool error;
        bool registered;
-#ifdef USE_KQUEUE
-       uint8_t kqflags;
-#endif
+       uint8_t flags;
 };
 
 struct uloop_timeout
 {
+       struct list_head list;
+       bool pending;
+
        uloop_timeout_handler cb;
-       struct uloop_timeout *prev;
-       struct uloop_timeout *next;
        struct timeval time;
+};
+
+struct uloop_process
+{
+       struct list_head list;
        bool pending;
+
+       uloop_process_handler cb;
+       pid_t pid;
 };
 
 extern bool uloop_cancelled;
+extern bool uloop_handle_sigchld;
 
 int uloop_fd_add(struct uloop_fd *sock, unsigned int flags);
 int uloop_fd_delete(struct uloop_fd *sock);
@@ -70,6 +92,10 @@ int uloop_fd_delete(struct uloop_fd *sock);
 int uloop_timeout_add(struct uloop_timeout *timeout);
 int uloop_timeout_set(struct uloop_timeout *timeout, int msecs);
 int uloop_timeout_cancel(struct uloop_timeout *timeout);
+int uloop_timeout_remaining(struct uloop_timeout *timeout);
+
+int uloop_process_add(struct uloop_process *p);
+int uloop_process_delete(struct uloop_process *p);
 
 static inline void uloop_end(void)
 {