Introduction of sequential-API build variant, better thread safety (lwIP only)

2017-09-27 02:29:04 -07:00
parent e4620e4c85
commit 5f1e9fe795
176 changed files with 16494 additions and 20406 deletions
--- a/ext/lwip-contrib/ports/unix/unixsim/simnode.c
+++ b/ext/lwip-contrib/ports/unix/unixsim/simnode.c
@@ -0,0 +1,181 @@
+/*
+ * Copyright (c) 2001-2003 Swedish Institute of Computer Science.
+ * All rights reserved. 
+ * 
+ * Redistribution and use in source and binary forms, with or without modification, 
+ * are permitted provided that the following conditions are met:
+ *
+ * 1. Redistributions of source code must retain the above copyright notice,
+ *    this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright notice,
+ *    this list of conditions and the following disclaimer in the documentation
+ *    and/or other materials provided with the distribution.
+ * 3. The name of the author may not be used to endorse or promote products
+ *    derived from this software without specific prior written permission. 
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED 
+ * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF 
+ * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT 
+ * SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, 
+ * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT 
+ * OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 
+ * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 
+ * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING 
+ * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY 
+ * OF SUCH DAMAGE.
+ *
+ * This file is part of the lwIP TCP/IP stack.
+ * 
+ * Author: Adam Dunkels <adam@sics.se>
+ *
+ */
+
+#include "lwip/debug.h"
+
+#include <unistd.h>
+
+
+#include "lwip/mem.h"
+#include "lwip/memp.h"
+#include "lwip/sys.h"
+#include "lwip/tcp.h"
+#include "lwip/priv/tcp_priv.h" /* for tcp_debug_print_pcbs() */
+#include "lwip/timeouts.h"
+
+#include "lwip/stats.h"
+
+
+#include "lwip/tcpip.h"
+
+
+#include "netif/unixif.h"
+#include "netif/dropif.h"
+
+#include "netif/tcpdump.h"
+
+#include "lwip/ip_addr.h"
+
+#include "arch/perf.h"
+
+#include "lwip/apps/httpd.h"
+#include "apps/udpecho/udpecho.h"
+#include "apps/tcpecho/tcpecho.h"
+#include "apps/shell/shell.h"
+
+#if LWIP_IPV4 /* @todo: IPv6 */
+
+/* nonstatic debug cmd option, exported in lwipopts.h */
+unsigned char debug_flags;
+
+/*-----------------------------------------------------------------------------------*/
+static void
+tcp_timeout(void *data)
+{
+  LWIP_UNUSED_ARG(data);
+#if TCP_DEBUG && LWIP_TCP
+  tcp_debug_print_pcbs();
+#endif /* TCP_DEBUG */
+  sys_timeout(5000, tcp_timeout, NULL);
+}
+/*-----------------------------------------------------------------------------------*/
+struct netif netif_unix;
+/*-----------------------------------------------------------------------------------*/
+static void
+tcpip_init_done(void *arg)
+{
+  ip4_addr_t ipaddr, netmask, gw;
+  sys_sem_t *sem;
+  sem = (sys_sem_t *)arg;
+
+  IP4_ADDR(&gw, 192,168,1,1);
+  IP4_ADDR(&ipaddr, 192,168,1,2);
+  IP4_ADDR(&netmask, 255,255,255,0);
+
+  netif_set_default(netif_add(&netif_unix, &ipaddr, &netmask, &gw, NULL, unixif_init_client,
+			      tcpip_input));
+  netif_set_up(&netif_unix);
+#if LWIP_IPV6
+  netif_create_ip6_linklocal_address(&netif_unix, 1);
+#endif
+  /*  netif_set_default(netif_add(&ipaddr, &netmask, &gw, NULL, sioslipif_init1,
+			      tcpip_input)); */
+
+#if LWIP_NETCONN
+  tcpecho_init();
+  shell_init();
+#if LWIP_IPV4 && LWIP_TCP
+  httpd_init();
+#endif
+  udpecho_init();
+#endif
+
+  printf("Applications started.\n");
+
+  sys_timeout(5000, tcp_timeout, NULL);
+
+  sys_sem_signal(sem);
+}
+/*-----------------------------------------------------------------------------------*/
+
+static void
+main_thread(void *arg)
+{
+  sys_sem_t sem;
+  LWIP_UNUSED_ARG(arg);
+
+  if(sys_sem_new(&sem, 0) != ERR_OK) {
+    LWIP_ASSERT("Failed to create semaphore", 0);
+  }
+  tcpip_init(tcpip_init_done, &sem);
+  sys_sem_wait(&sem);
+  printf("TCP/IP initialized.\n");
+
+#ifdef MEM_PERF
+  mem_perf_init("/tmp/memstats.client");
+#endif /* MEM_PERF */
+
+  /* Block forever. */
+  sys_sem_wait(&sem);
+}
+/*-----------------------------------------------------------------------------------*/
+int
+main(void)
+{
+#ifdef PERF
+  perf_init("/tmp/client.perf");
+#endif /* PERF */
+
+#if LWIP_IPV4 && LWIP_TCP
+  tcpdump_init();
+#endif
+  
+  printf("System initialized.\n");
+
+  sys_thread_new("main_thread", main_thread, NULL, DEFAULT_THREAD_STACKSIZE, DEFAULT_THREAD_PRIO);
+  pause();
+  return 0;
+}
+
+#else /* LWIP_IPV4 */
+
+int
+main(int argc, char **argv)
+{
+  LWIP_UNUSED_ARG(argc);
+  LWIP_UNUSED_ARG(argv);
+
+  printf("simnode only works with IPv4\n");
+
+  return 0;
+}
+
+#endif /* LWIP_IPV4 */
+
+/* dummy, because SNTP is pulled in via LWIP_DHCP_GET_NTP_SRV */
+void
+sntp_set_system_time(u32_t sec)
+{
+  LWIP_UNUSED_ARG(sec);
+}
+
+/*-----------------------------------------------------------------------------------*/