add mqttclient to the component, and add fire stm32f429 board demo.

components/connectivity/mqttclient/common/log/salof.c

@@ -0,0 +1,108 @@
+/*
+ * @Author: jiejie
+ * @Github: https://github.com/jiejieTop
+ * @Date: 2019-12-27 23:10:36
+ * @LastEditTime : 2020-01-16 00:37:56
+ * @Description: the code belongs to jiejie, please keep the author information and source code according to the license.
+ */
+/** synchronous asynchronous log output framework */
+
+#include "salof.h"
+
+#ifndef SALOF_BUFF_SIZE
+    #define     SALOF_BUFF_SIZE     (1024U)
+#endif 
+#ifndef SALOF_FIFO_SIZE
+    #define     SALOF_FIFO_SIZE     (2048U)
+#endif 
+
+static int salof_out(char *buf, int len);
+
+#if USE_SALOF
+#include <string.h>
+static fifo_t _salof_fifo = NULL;
+static int _len;
+static char _out_buff[SALOF_BUFF_SIZE];
+
+#if !USE_IDLE_HOOK
+static salof_tcb _salof_task;
+void salof_task(void *parm);
+#else
+
+#if !defined(salof_handler)
+    #error "salof_handler need to be defined as your hook function"
+#endif
+
+#endif
+#endif
+
+static char _format_buff[SALOF_BUFF_SIZE];
+
+int salof_init(void)
+{
+#if USE_SALOF
+    _salof_fifo = fifo_create(SALOF_FIFO_SIZE);
+    if(_salof_fifo == NULL)
+        return -1;
+
+#if !USE_IDLE_HOOK
+    _salof_task = salof_task_create("salof_task", salof_task, NULL, SALOF_TASK_STACK_SIZE, SALOF_TASK_PRIO, SALOF_TASK_TICK);
+    if(_salof_task == NULL)
+        return -1;
+#endif
+#endif
+    return 0;
+}
+
+
+void salof(const char *fmt, ...)
+{
+    va_list args;
+    int len;
+    va_start(args, fmt);
+
+    len = format_nstr(_format_buff, SALOF_BUFF_SIZE - 1, fmt, args);
+
+    if(len > SALOF_BUFF_SIZE)
+        len = SALOF_BUFF_SIZE - 1;
+
+#if USE_SALOF
+    fifo_write(_salof_fifo, _format_buff, len, 100);
+#else
+    salof_out(_format_buff, len);
+#endif
+
+  va_end(args);
+}
+
+static int salof_out(char *buf, int len)
+{
+    return send_buff(buf, len);
+}
+
+#if USE_SALOF
+void salof_handler( void )
+{
+    _len = fifo_read(_salof_fifo, _out_buff, sizeof(_out_buff), 0);
+    if(_len > 0) {
+        salof_out((char *)_out_buff, _len);
+        memset(_out_buff, 0, _len);
+    }
+}
+#endif
+
+#if !USE_IDLE_HOOK
+void salof_task(void *parm)
+{   
+    (void)parm;
+    while(1)
+    {
+#if USE_SALOF
+        salof_handler();
+#endif
+    } 
+}
+#endif
+
+
+