From 6f122928f0d90d480ea18e41b3a12ef07963ff20 Mon Sep 17 00:00:00 2001
From: liuzhifu <liuzhifu@espressif.com>
Date: Wed, 17 Aug 2016 21:05:29 +0800
Subject: [PATCH] fix socket compile error

---
 .../freertos/include/freertos/FreeRTOS.h      |  4 +++
 components/freertos/tasks.c                   | 27 +++++++++++++++++++
 components/lwip/api/sockets.c                 |  2 +-
 .../lwip/include/lwip/port/arch/sys_arch.h    |  1 +
 components/lwip/port/freertos/sys_arch.c      |  4 +--
 5 files changed, 35 insertions(+), 3 deletions(-)

diff --git a/components/freertos/include/freertos/FreeRTOS.h b/components/freertos/include/freertos/FreeRTOS.h
index 980f53d577b..ff76db27ec3 100644
--- a/components/freertos/include/freertos/FreeRTOS.h
+++ b/components/freertos/include/freertos/FreeRTOS.h
@@ -783,6 +783,10 @@ V8 if desired. */
 	#define xList List_t
 #endif /* configENABLE_BACKWARD_COMPATIBILITY */
 
+#ifndef configESP32_PER_TASK_DATA
+	#define configESP32_PER_TASK_DATA 1
+#endif
+
 #ifdef __cplusplus
 }
 #endif
diff --git a/components/freertos/tasks.c b/components/freertos/tasks.c
index 97e4b6a0047..adeaee60c27 100644
--- a/components/freertos/tasks.c
+++ b/components/freertos/tasks.c
@@ -84,6 +84,7 @@ task.h is included from an application file. */
 #include "timers.h"
 #include "StackMacros.h"
 #include "portmacro.h"
+#include "semphr.h"
 
 /* Lint e961 and e750 are suppressed as a MISRA exception justified because the
 MPU ports require MPU_WRAPPERS_INCLUDED_FROM_API_FILE to be defined for the
@@ -205,6 +206,10 @@ typedef struct tskTaskControlBlock
 		volatile eNotifyValue eNotifyState;
 	#endif
 
+#if (configESP32_PER_TASK_DATA == 1)
+	void *data;
+#endif
+
 } tskTCB;
 
 /* The old tskTCB name is maintained above then typedefed to the new TCB_t name
@@ -606,6 +611,9 @@ BaseType_t i;
 
 	if( pxNewTCB != NULL )
 	{
+#if (configESP32_PER_TASK_DATA == 1)
+		pxNewTCB->data = NULL;
+#endif
 		#if( portUSING_MPU_WRAPPERS == 1 )
 			/* Should the task be created in privileged mode? */
 			BaseType_t xRunPrivileged;
@@ -791,6 +799,11 @@ BaseType_t i;
 			being deleted. */
 			pxTCB = prvGetTCBFromHandle( xTaskToDelete );
 
+#if (configESP32_PER_TASK_DATA == 1)
+			if (pxTCB->data){
+				vSemaphoreDelete( pxTCB->data );
+			}
+#endif
 			/* Remove task from the ready list and place in the	termination list.
 			This will stop the task from be scheduled.  The idle task will check
 			the termination list and free up any memory allocated by the
@@ -4580,7 +4593,21 @@ TickType_t uxReturn;
 #endif /* configUSE_TASK_NOTIFICATIONS */
 
 /*-----------------------------------------------------------*/
+#if (configESP32_PER_TASK_DATA == 1)
+void* xTaskGetPerTaskData(void)
+{
+	TCB_t *pxTCB = (TCB_t*)(xTaskGetCurrentTaskHandle());
+	if (pxTCB){
+		if (!pxTCB->data){
+			vSemaphoreCreateBinary(pxTCB->data);
+		}
+		return (void*)(&pxTCB->data);
+        }
 
+	return NULL;
+}
+#endif /* configESP32_PER_TASK_DATA */
+/*-----------------------------------------------------------*/
 
 #ifdef FREERTOS_MODULE_TEST
 	#include "tasks_test_access_functions.h"
diff --git a/components/lwip/api/sockets.c b/components/lwip/api/sockets.c
index ee1c9216b3a..5b109eb375c 100755
--- a/components/lwip/api/sockets.c
+++ b/components/lwip/api/sockets.c
@@ -405,7 +405,7 @@ do{\
 
 /** The global array of available sockets */
 static struct lwip_sock sockets[NUM_SOCKETS];
-#ifdef LWIP_THREAD_SAFE
+#if LWIP_THREAD_SAFE
 static bool sockets_init_flag = false;
 #endif
 /** The global list of tasks waiting for select */
diff --git a/components/lwip/include/lwip/port/arch/sys_arch.h b/components/lwip/include/lwip/port/arch/sys_arch.h
index a78dd5a3fb3..3d9e460e095 100644
--- a/components/lwip/include/lwip/port/arch/sys_arch.h
+++ b/components/lwip/include/lwip/port/arch/sys_arch.h
@@ -66,6 +66,7 @@ void sys_arch_assert(const char *file, int line);
 uint32_t system_get_time(void);
 sys_sem_t* sys_thread_sem(void);
 void sys_delay_ms(uint32_t ms);
+void* xTaskGetPerTaskData(void);
 
 
 
diff --git a/components/lwip/port/freertos/sys_arch.c b/components/lwip/port/freertos/sys_arch.c
index caa6d1a3a93..93272a60307 100755
--- a/components/lwip/port/freertos/sys_arch.c
+++ b/components/lwip/port/freertos/sys_arch.c
@@ -482,8 +482,8 @@ sys_arch_assert(const char *file, int line)
 */
 sys_sem_t* sys_thread_sem(void)
 {
-  extern void* xTaskGetLwipSem(void);
-  return (sys_sem_t*)(xTaskGetLwipSem());
+  sys_sem_t *sem = (sys_sem_t*)xTaskGetPerTaskData();
+  return sem;
 }
 
 void sys_delay_ms(uint32_t ms)