From 9abae50758229e61ae1f8393b2052d9c1c8950fd Mon Sep 17 00:00:00 2001
From: Jan Breuer <jan.breuer@jaybee.cz>
Date: 周一, 16 1月 2023 16:50:15 +0800
Subject: [PATCH] Add stdbool.h detection for C++ to cc.h

---
 examples/test-LwIP-netconn/scpi_server.c |  394 ++++++++++++++++++++++++++++++++++---------------------
 1 files changed, 244 insertions(+), 150 deletions(-)

diff --git a/examples/test-LwIP-netconn/scpi_server.c b/examples/test-LwIP-netconn/scpi_server.c
index adce100..6147235 100644
--- a/examples/test-LwIP-netconn/scpi_server.c
+++ b/examples/test-LwIP-netconn/scpi_server.c
@@ -1,37 +1,38 @@
 /*-
- * Copyright (c) 2012-2013 Jan Breuer,
+ * BSD 2-Clause License
  *
- * All Rights Reserved
- * 
+ * Copyright (c) 2012-2018, Jan Breuer
+ * 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.
- * 
- * THIS SOFTWARE IS PROVIDED BY THE AUTHORS ``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 AUTHORS OR CONTRIBUTORS 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.
+ * modification, are permitted provided that the following conditions are met:
+ *
+ * * Redistributions of source code must retain the above copyright notice, this
+ *   list of conditions and the following disclaimer.
+ *
+ * * 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.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "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 COPYRIGHT HOLDER OR CONTRIBUTORS 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.
  */
 
 /**
  * @file   scpi_server.c
  * @date   Thu Nov 15 10:58:45 UTC 2012
- * 
+ *
  * @brief  TCP/IP SCPI Server
- * 
- * 
+ *
+ *
  */
 
 #include <stdio.h>
@@ -48,11 +49,16 @@
 #include "lwip/tcp.h"
 #include "lwip/inet.h"
 
-
-#define DEVICE_PORT 5025
-#define CONTROL_PORT 5026
-
 #define SCPI_THREAD_PRIO (tskIDLE_PRIORITY + 2)
+
+#define SCPI_MSG_TIMEOUT                0
+#define SCPI_MSG_TEST                   1
+#define SCPI_MSG_IO_LISTEN              2
+#define SCPI_MSG_CONTROL_IO_LISTEN      3
+#define SCPI_MSG_IO                     4
+#define SCPI_MSG_CONTROL_IO             5
+#define SCPI_MSG_SET_ESE_REQ            6
+#define SCPI_MSG_SET_ERROR              7
 
 typedef struct {
     struct netconn *io_listen;
@@ -60,32 +66,39 @@
     struct netconn *io;
     struct netconn *control_io;
     xQueueHandle evtQueue;
-    //FILE * fio;
-    //fd_set fds;
+    /* FILE * fio; */
+    /* fd_set fds; */
 } user_data_t;
+
+struct _queue_event_t {
+    uint8_t cmd;
+    uint8_t param1;
+    int16_t param2;
+} __attribute__((__packed__));
+typedef struct _queue_event_t queue_event_t;
+
 
 user_data_t user_data = {
     .io_listen = NULL,
-    .io =  NULL,
+    .io = NULL,
     .control_io_listen = NULL,
     .control_io = NULL,
     .evtQueue = 0,
-};   
-
+};
 
 size_t SCPI_Write(scpi_t * context, const char * data, size_t len) {
     if (context->user_context != NULL) {
-        user_data_t * u = (user_data_t *)(context->user_context);
+        user_data_t * u = (user_data_t *) (context->user_context);
         if (u->io) {
-            return (netconn_write(u->io, data, len, NETCONN_NOCOPY) == ERR_OK) ? len : 0;
+            return (netconn_write(u->io, data, len, NETCONN_COPY) == ERR_OK) ? len : 0;
         }
     }
     return 0;
 }
 
-scpi_result_t SCPI_Flush(scpi_t * context) {    
+scpi_result_t SCPI_Flush(scpi_t * context) {
     if (context->user_context != NULL) {
-        user_data_t * u = (user_data_t *)(context->user_context);
+        user_data_t * u = (user_data_t *) (context->user_context);
         if (u->io) {
             /* flush not implemented */
             return SCPI_RES_OK;
@@ -95,12 +108,16 @@
 }
 
 int SCPI_Error(scpi_t * context, int_fast16_t err) {
-    (void) context;
-    // BEEP
-    iprintf("**ERROR: %ld, \"%s\"\r\n", (int32_t) err, SCPI_ErrorTranslate(err));
+    (void) context;    
+    if (err != 0) {
+        /* New error */
+        SCPI_Event_ErrorIndicatorOn(context, err);
+    } else {
+        /* No more errors in the queue */
+        SCPI_Event_ErrorIndicatorOff(context, err);
+    }
     return 0;
 }
-
 
 scpi_result_t SCPI_Control(scpi_t * context, scpi_ctrl_name_t ctrl, scpi_reg_val_t val) {
     char b[16];
@@ -110,150 +127,177 @@
     } else {
         iprintf("**CTRL %02x: 0x%X (%d)\r\n", ctrl, val, val);
     }
-    
+
     if (context->user_context != NULL) {
-        user_data_t * u = (user_data_t *)(context->user_context);
+        user_data_t * u = (user_data_t *) (context->user_context);
         if (u->control_io) {
-            snprintf(b, sizeof(b), "SRQ%d\r\n", val);
-            return netconn_write(u->control_io, b, strlen(b), NETCONN_NOCOPY) == ERR_OK ? SCPI_RES_OK : SCPI_RES_ERR;
+            snprintf(b, sizeof (b), "SRQ%d\r\n", val);
+            return netconn_write(u->control_io, b, strlen(b), NETCONN_COPY) == ERR_OK ? SCPI_RES_OK : SCPI_RES_ERR;
         }
-    }    
+    }
     return SCPI_RES_OK;
 }
 
-scpi_result_t SCPI_Test(scpi_t * context) {
-    (void) context;
-    iprintf("**Test\r\n");
-    return SCPI_RES_OK;
-}
-
-scpi_result_t SCPI_Reset(scpi_t * context) {
+scpi_result_t __attribute__((weak)) SCPI_Reset(scpi_t * context) {
     (void) context;
     iprintf("**Reset\r\n");
     return SCPI_RES_OK;
 }
 
 scpi_result_t SCPI_SystemCommTcpipControlQ(scpi_t * context) {
-    SCPI_ResultInt(context, CONTROL_PORT);
+    SCPI_ResultInt(context, SCPI_CONTROL_PORT);
     return SCPI_RES_OK;
 }
 
+static void setEseReq(void) {
+    SCPI_RegSetBits(&scpi_context, SCPI_REG_ESR, ESR_REQ);
+}
 
-#define SCPI_MSG_TEST                   1
-#define SCPI_MSG_IO_LISTEN              2
-#define SCPI_MSG_CONTROL_IO_LISTEN      3
-#define SCPI_MSG_IO                     4
-#define SCPI_MSG_CONTROL_IO             5
+static void setError(int16_t err) {
+    SCPI_ErrorPush(&scpi_context, err);
+}
+
+void SCPI_RequestControl(void) {
+    BaseType_t xReturned;
+    queue_event_t msg;
+    msg.cmd = SCPI_MSG_SET_ESE_REQ;
+
+    /* Avoid sending evtQueue message if ESR_REQ is already set
+    if((SCPI_RegGet(&scpi_context, SCPI_REG_ESR) & ESR_REQ) == 0) {
+        xQueueSend(user_data.evtQueue, &msg, 1000);
+    }
+     */
+
+    xReturned = xQueueSend(user_data.evtQueue, &msg, 1000);
+    /* @fixme: replace by real error handling code */
+    LWIP_ASSERT("SCPI_RequestControl failed", xReturned == pdPASS);
+}
+
+void SCPI_AddError(int16_t err) {
+    BaseType_t xReturned;
+    queue_event_t msg;
+    msg.cmd = SCPI_MSG_SET_ERROR;
+    msg.param2 = err;
+
+    xReturned = xQueueSend(user_data.evtQueue, &msg, 1000);
+    /* @fixme: replace by real error handling code */
+    LWIP_ASSERT("SCPI_AddError failed", xReturned == pdPASS);
+}
 
 void scpi_netconn_callback(struct netconn * conn, enum netconn_evt evt, u16_t len) {
-    uint32_t msg;
+    BaseType_t xReturned;
+    queue_event_t msg;
     (void) len;
-    
-    
+
+
     if (evt == NETCONN_EVT_RCVPLUS) {
-        msg = SCPI_MSG_TEST;
+        msg.cmd = SCPI_MSG_TEST;
         if (conn == user_data.io) {
-            msg = SCPI_MSG_IO;
+            msg.cmd = SCPI_MSG_IO;
         } else if (conn == user_data.io_listen) {
-            msg = SCPI_MSG_IO_LISTEN;
+            msg.cmd = SCPI_MSG_IO_LISTEN;
         } else if (conn == user_data.control_io) {
-            msg = SCPI_MSG_CONTROL_IO;
+            msg.cmd = SCPI_MSG_CONTROL_IO;
         } else if (conn == user_data.control_io_listen) {
-            msg = SCPI_MSG_CONTROL_IO_LISTEN;
+            msg.cmd = SCPI_MSG_CONTROL_IO_LISTEN;
         }
-        xQueueSend(user_data.evtQueue, &msg, 1000);
+        xReturned = xQueueSend(user_data.evtQueue, &msg, 1000);
+        /* @fixme: replace by real error handling code */
+        LWIP_ASSERT("scpi_netconn_callback failed", xReturned == pdPASS);
     }
 }
 
 static struct netconn * createServer(int port) {
     struct netconn * conn;
     err_t err;
-    
+
     conn = netconn_new_with_callback(NETCONN_TCP, scpi_netconn_callback);
     if (conn == NULL) {
         return NULL;
     }
-    
+
     err = netconn_bind(conn, NULL, port);
     if (err != ERR_OK) {
         netconn_delete(conn);
         return NULL;
     }
-    
+
 
     netconn_listen(conn);
-    
+
     return conn;
 }
 
-static int waitServer(user_data_t * user_data) {
-
-    uint32_t rc;
-    
+static void waitServer(user_data_t * user_data, queue_event_t * evt) {
     /* 5s timeout */
-    if (xQueueReceive(user_data->evtQueue, &rc, 5000 * portTICK_RATE_MS) != pdPASS) {
-        rc = 0;
+    if (xQueueReceive(user_data->evtQueue, evt, 5000 * portTICK_RATE_MS) != pdPASS) {
+        evt->cmd = SCPI_MSG_TIMEOUT;
     }
-
-    return rc;
 }
 
-
-static int processIoListen(user_data_t * user_data) {
+static int processIoListen(scpi_t * context, user_data_t * user_data) {
     struct netconn *newconn;
-    
+
     if (netconn_accept(user_data->io_listen, &newconn) == ERR_OK) {
         if (user_data->io) {
-            // Close unwanted connection
+            /* Close unwanted connection */
             netconn_close(newconn);
             netconn_delete(newconn);
         } else {
-            // connection established
-            iprintf("***Connection established %s\r\n", inet_ntoa(newconn->pcb.ip->remote_ip));
+            /* connection established */
+            SCPI_Event_DeviceConnected(context, newconn);
+            ip_set_option(newconn->pcb.tcp, SOF_KEEPALIVE);
+            newconn->pcb.tcp->keep_idle   = SCPI_KEEP_IDLE;  // Override TCP_KEEPIDLE_DEFAULT  for this connection.
+            newconn->pcb.tcp->keep_intvl  = SCPI_KEEP_INTVL; // Override TCP_KEEPINTVL_DEFAULT for this connection.
+            newconn->pcb.tcp->keep_cnt    = SCPI_KEEP_CNT;   // Override TCP_KEEPCNT_DEFAULT   for this connection.
             user_data->io = newconn;
         }
-    }    
-    
+    }
+
     return 0;
 }
 
-static int processSrqIoListen(user_data_t * user_data) {
+static int processSrqIoListen(scpi_t * context, user_data_t * user_data) {
     struct netconn *newconn;
-    
+
     if (netconn_accept(user_data->control_io_listen, &newconn) == ERR_OK) {
         if (user_data->control_io) {
             netconn_close(newconn);
             netconn_delete(newconn);
         } else {
-            // control connection established
-            iprintf("***Control Connection established %s\r\n", inet_ntoa(newconn->pcb.ip->remote_ip));
+            /* control connection established */
+            SCPI_Event_ControlConnected(context, newconn);
+            ip_set_option(newconn->pcb.tcp, SOF_KEEPALIVE);
+            newconn->pcb.tcp->keep_idle   = SCPI_KEEP_IDLE;  // Override TCP_KEEPIDLE_DEFAULT  for this connection.
+            newconn->pcb.tcp->keep_intvl  = SCPI_KEEP_INTVL; // Override TCP_KEEPINTVL_DEFAULT for this connection.
+            newconn->pcb.tcp->keep_cnt    = SCPI_KEEP_CNT;   // Override TCP_KEEPCNT_DEFAULT   for this connection.
             user_data->control_io = newconn;
         }
-    }    
-    
+    }
+
     return 0;
 }
 
-static void closeIo(user_data_t * user_data) {
-    // connection closed
+static void closeIo(scpi_t * context, user_data_t * user_data) {
+    /* connection closed */
+    SCPI_Event_DeviceDisconnected(context, user_data->io);
     netconn_close(user_data->io);
     netconn_delete(user_data->io);
     user_data->io = NULL;
-    iprintf("***Connection closed\r\n");
 }
 
-static void closeSrqIo(user_data_t * user_data) {
-    // control connection closed
+static void closeSrqIo(scpi_t * context, user_data_t * user_data) {
+    /* control connection closed */
+    SCPI_Event_ControlDisconnected(context, user_data->io);
     netconn_close(user_data->control_io);
     netconn_delete(user_data->control_io);
     user_data->control_io = NULL;
-    iprintf("***Control Connection closed\r\n");    
 }
 
 static int processIo(user_data_t * user_data) {
     struct netbuf *inbuf;
     char* buf;
-    u16_t buflen;    
+    u16_t buflen;
 
     if (netconn_recv(user_data->io, &inbuf) != ERR_OK) {
         goto fail1;
@@ -261,31 +305,31 @@
     if (netconn_err(user_data->io) != ERR_OK) {
         goto fail2;
     }
-    
+
     netbuf_data(inbuf, (void**) &buf, &buflen);
 
     if (buflen > 0) {
         SCPI_Input(&scpi_context, buf, buflen);
     } else {
-        //goto fail2;
+        /* goto fail2; */
     }
-    
+
     netbuf_delete(inbuf);
-    
+
     return 0;
-    
+
 fail2:
     netbuf_delete(inbuf);
 fail1:
     closeIo(user_data);
-    
+
     return 0;
 }
 
 static int processSrqIo(user_data_t * user_data) {
     struct netbuf *inbuf;
     char* buf;
-    u16_t buflen;    
+    u16_t buflen;
 
     if (netconn_recv(user_data->control_io, &inbuf) != ERR_OK) {
         goto fail1;
@@ -293,78 +337,128 @@
     if (netconn_err(user_data->control_io) != ERR_OK) {
         goto fail2;
     }
-    
+
     netbuf_data(inbuf, (void**) &buf, &buflen);
 
     if (buflen > 0) {
-        // TODO process control
+        /* TODO process control */
     } else {
-        //goto fail2;
+        /* goto fail2; */
     }
-    
+
     netbuf_delete(inbuf);
 
     return 0;
-    
+
 fail2:
     netbuf_delete(inbuf);
 fail1:
     closeSrqIo(user_data);
-    
+
     return 0;
 }
 
 /*
- * 
+ *
  */
 static void scpi_server_thread(void *arg) {
-    int rc;
+    queue_event_t evt;
 
-    (void)arg;
+    (void) arg;
 
-    user_data.evtQueue = xQueueCreate(10, sizeof(uint32_t));
-    
-    // user_context will be pointer to socket
+    user_data.evtQueue = xQueueCreate(10, sizeof (queue_event_t));
+    LWIP_ASSERT("user_data.evtQueue != NULL", user_data.evtQueue != NULL);
+
+    /* user_context will be pointer to socket */
+    SCPI_Init(&scpi_context,
+            scpi_commands,
+            &scpi_interface,
+            scpi_units_def,
+            SCPI_IDN1, SCPI_IDN2, SCPI_IDN3, SCPI_IDN4,
+            scpi_input_buffer, SCPI_INPUT_BUFFER_LENGTH,
+            scpi_error_queue_data, SCPI_ERROR_QUEUE_SIZE);
+
     scpi_context.user_context = &user_data;
-    
-    SCPI_Init(&scpi_context);
 
-    user_data.io_listen = createServer(DEVICE_PORT);
-    user_data.control_io_listen = createServer(CONTROL_PORT);
-    
-    while(1) {
-        rc = waitServer(&user_data);
-        
-        if (rc < 0) { // failed
-            iprintf("select failed");
-            break;
-        }
+    user_data.io_listen = createServer(SCPI_DEVICE_PORT);
+    LWIP_ASSERT("user_data.io_listen != NULL", user_data.io_listen != NULL);
 
-        if (rc == 0) { // timeout
+    user_data.control_io_listen = createServer(SCPI_CONTROL_PORT);
+    LWIP_ASSERT("user_data.control_io_listen != NULL", user_data.control_io_listen != NULL);
+
+    while (1) {
+        waitServer(&user_data, &evt);
+
+        if (evt.cmd == SCPI_MSG_TIMEOUT) { /* timeout */
             SCPI_Input(&scpi_context, NULL, 0);
-        }        
-        
-        if ((user_data.io_listen != NULL) && (rc == SCPI_MSG_IO_LISTEN)) {
-            processIoListen(&user_data);
         }
 
-        if ((user_data.control_io_listen != NULL) && (rc == SCPI_MSG_CONTROL_IO_LISTEN)) {
-            processSrqIoListen(&user_data);
+        if ((user_data.io_listen != NULL) && (evt.cmd == SCPI_MSG_IO_LISTEN)) {
+            processIoListen(&scpi_context, &user_data);
         }
-        
-        if ((user_data.io != NULL) && (rc == SCPI_MSG_IO)) {
-            processIo(&user_data);
+
+        if ((user_data.control_io_listen != NULL) && (evt.cmd == SCPI_MSG_CONTROL_IO_LISTEN)) {
+            processSrqIoListen(&scpi_context, &user_data);
         }
-        
-        if ((user_data.control_io != NULL) && (rc == SCPI_MSG_CONTROL_IO)) {
-            processSrqIo(&user_data);
+
+        if ((user_data.io != NULL) && (evt.cmd == SCPI_MSG_IO)) {
+            processIo(&scpi_context, &user_data);
         }
-        
+
+        if ((user_data.control_io != NULL) && (evt.cmd == SCPI_MSG_CONTROL_IO)) {
+            processSrqIo(&scpi_context, &user_data);
+        }
+
+        if (evt.cmd == SCPI_MSG_SET_ESE_REQ) {
+            setEseReq();
+        }
+
+        if (evt.cmd == SCPI_MSG_SET_ERROR) {
+            setError(evt.param2);
+        }
+
     }
-    
+
     vTaskDelete(NULL);
 }
 
 void scpi_server_init(void) {
-    sys_thread_new("SCPI", scpi_server_thread, NULL, 2 * DEFAULT_THREAD_STACKSIZE, SCPI_THREAD_PRIO);
-}
\ No newline at end of file
+    TaskHandle_t xHandle = NULL;
+    BaseType_t xReturned;
+    xReturned = xTaskCreate(scpi_server_thread, "SCPI", DEFAULT_THREAD_STACKSIZE, NULL, SCPI_THREAD_PRIO, &xHandle);
+    LWIP_ASSERT("scpi_server_init failed", xReturned == pdPASS);
+}
+
+/* Called by processIoListen() for additional reporting. Override on demand. */
+void __attribute__((weak)) SCPI_Event_DeviceConnected(scpi_t * context, struct netconn * conn) {
+    iprintf("***Connection established %s\r\n", inet_ntoa(newconn->pcb.ip->remote_ip));
+    /* Remote or Eth LED ON */
+}
+
+/* Called by closeIO() for additional reporting. Override on demand. */
+void __attribute__((weak)) SCPI_Event_DeviceDisconnected(scpi_t * context, struct netconn * conn) {
+    iprintf("***Connection closed\r\n");
+    /* Remote or Eth LED OFF */
+}
+
+/* Called by processIoListen() for additional reporting. Override on demand. */
+void __attribute__((weak)) SCPI_Event_ControlConnected(scpi_t * context, struct netconn * conn) {
+    iprintf("***Control Connection established %s\r\n", inet_ntoa(newconn->pcb.ip->remote_ip));
+}
+
+/* Called by closeIO() for additional reporting. Override on demand. */
+void __attribute__((weak)) SCPI_Event_ControlDisconnected(scpi_t * context, struct netconn * conn) {
+    iprintf("***Control Connection closed\r\n");
+}
+
+/* Called by SCPI_Error() for reporting. Override on demand. */
+void __attribute__((weak)) SCPI_Event_ErrorIndicatorOn(scpi_t * context, int_fast16_t err) {
+    iprintf("**ERROR: %ld, \"%s\"\r\n", (int32_t) err, SCPI_ErrorTranslate(err));
+    /* New error : BEEP, Error LED ON */
+}
+
+/* Called by SCPI_Error() for reporting. Override on demand. */
+void __attribute__((weak)) SCPI_Event_ErrorIndicatorOff(scpi_t * context, int_fast16_t err) {
+    iprintf("**ERROR: %ld, \"%s\"\r\n", (int32_t) err, SCPI_ErrorTranslate(err));
+    /* No more errors in the queue : Error LED OFF */
+}

--
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