From 11f2f2e329ef404d0e9c022cb2f9fbbb45bae285 Mon Sep 17 00:00:00 2001
From: nancy.liao <huihui.liao@greentest.com.cn>
Date: 周日, 27 4月 2025 17:33:31 +0800
Subject: [PATCH] 完成了SCPI命令语法分析器的完整规则
---
libscpi/src/error.c | 156 ++++++++++++++++++++++++++++------------------------
1 files changed, 84 insertions(+), 72 deletions(-)
diff --git a/libscpi/src/error.c b/libscpi/src/error.c
index d1307a4..00f4869 100644
--- a/libscpi/src/error.c
+++ b/libscpi/src/error.c
@@ -1,30 +1,30 @@
/*-
- * 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.
+ * modification, are permitted provided that the following conditions are met:
*
- * 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.
+ * * 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_error.c
* @date Thu Nov 15 10:58:45 UTC 2012
@@ -36,10 +36,17 @@
#include <stdint.h>
-#include "scpi/parser.h"
-#include "scpi/ieee488.h"
-#include "scpi/error.h"
+#include <scpi/parser.h>
+#include <scpi/ieee488.h>
+#include <scpi/error.h>
#include "fifo_private.h"
+#include <scpi/constants.h>
+
+#if USE_DEVICE_DEPENDENT_ERROR_INFORMATION
+#define SCPI_ERROR_SETVAL(e, c, i) do { (e)->error_code = (c); (e)->device_dependent_info = (i); } while(0)
+#else
+#define SCPI_ERROR_SETVAL(e, c, i) do { (e)->error_code = (c); (void)(i);} while(0)
+#endif
/**
* Initialize error queue
@@ -82,11 +89,11 @@
*/
void SCPI_ErrorClear(scpi_t * context) {
#if USE_DEVICE_DEPENDENT_ERROR_INFORMATION
- scpi_error_t error;
- while(fifo_remove(&context->error_queue, &error)){
- SCPIDEFINE_free(&context->error_info_heap, error.device_dependent_info, false);
- }
-#endif
+ scpi_error_t error;
+ while (fifo_remove(&context->error_queue, &error)) {
+ SCPIDEFINE_free(&context->error_info_heap, error.device_dependent_info, false);
+ }
+#endif
fifo_clear(&context->error_queue);
SCPI_ErrorEmitEmpty(context);
@@ -96,17 +103,16 @@
* Pop error from queue
* @param context - scpi context
* @param error
- * @return
+ * @return
*/
scpi_bool_t SCPI_ErrorPop(scpi_t * context, scpi_error_t * error) {
- if(!error || !context) return FALSE;
- error->error_code = 0;
- error->device_dependent_info = NULL;
- fifo_remove(&context->error_queue, error);
+ if (!error || !context) return FALSE;
+ SCPI_ERROR_SETVAL(error, 0, NULL);
+ fifo_remove(&context->error_queue, error);
- SCPI_ErrorEmitEmpty(context);
+ SCPI_ErrorEmitEmpty(context);
- return TRUE;
+ return TRUE;
}
/**
@@ -122,10 +128,22 @@
return result;
}
-static scpi_bool_t SCPI_ErrorAddInternal(scpi_t * context, int16_t err, char * info) {
- if (!fifo_add(&context->error_queue, err, info)) {
- fifo_remove_last(&context->error_queue, NULL);
- fifo_add(&context->error_queue, SCPI_ERROR_QUEUE_OVERFLOW, NULL);
+static scpi_bool_t SCPI_ErrorAddInternal(scpi_t * context, int16_t err, char * info, size_t info_len) {
+ scpi_error_t error_value;
+ /* SCPIDEFINE_strndup is sometimes a dumy that does not reference it's arguments.
+ Since info_len is not referenced elsewhere caoing to void prevents unusd argument warnings */
+ (void) info_len;
+ char * info_ptr = NULL;
+ if (info) {
+ info_ptr = SCPIDEFINE_strndup(&context->error_info_heap, info, info_len);
+ }
+ SCPI_ERROR_SETVAL(&error_value, err, info_ptr);
+ if (!fifo_add(&context->error_queue, &error_value)) {
+ SCPIDEFINE_free(&context->error_info_heap, error_value.device_dependent_info, true);
+ fifo_remove_last(&context->error_queue, &error_value);
+ SCPIDEFINE_free(&context->error_info_heap, error_value.device_dependent_info, true);
+ SCPI_ERROR_SETVAL(&error_value, SCPI_ERROR_QUEUE_OVERFLOW, NULL);
+ fifo_add(&context->error_queue, &error_value);
return FALSE;
}
return TRUE;
@@ -134,10 +152,10 @@
struct error_reg {
int16_t from;
int16_t to;
- scpi_reg_val_t bit;
+ scpi_reg_val_t esrBit;
};
-#define ERROR_DEFS_N 9
+#define ERROR_DEFS_N 9
static const struct error_reg errs[ERROR_DEFS_N] = {
{-100, -199, ESR_CER}, /* Command error (e.g. syntax error) ch 21.8.9 */
@@ -153,38 +171,33 @@
/**
* Push error to queue
- * @param context - scpi context
+ * @param context
* @param err - error number
+ * @param info - additional text information or NULL for no text
+ * @param info_len - length of text or 0 for automatic length
*/
-void SCPI_ErrorPushEx(scpi_t * context, int16_t err, char * info) {
- int i;
- char * info_ptr = NULL;
-
-#if USE_DEVICE_DEPENDENT_ERROR_INFORMATION
- if (info){
- info_ptr = SCPIDEFINE_strdup(&context->error_info_heap, info);
- }
-#endif
+void SCPI_ErrorPushEx(scpi_t * context, int16_t err, char * info, size_t info_len) {
+ int i;
+ /* automatic calculation of length */
+ if (info && info_len == 0) {
+ info_len = SCPIDEFINE_strnlen(info, SCPI_STD_ERROR_DESC_MAX_STRING_LENGTH);
+ }
+ scpi_bool_t queue_overflow = !SCPI_ErrorAddInternal(context, err, info, info_len);
- scpi_bool_t queue_overflow = !SCPI_ErrorAddInternal(context, err, info_ptr);
+ for (i = 0; i < ERROR_DEFS_N; i++) {
+ if ((err <= errs[i].from) && (err >= errs[i].to)) {
+ SCPI_RegSetBits(context, SCPI_REG_ESR, errs[i].esrBit);
+ }
+ }
- for (i = 0; i < ERROR_DEFS_N; i++) {
- if ((err <= errs[i].from) && (err >= errs[i].to)) {
- SCPI_RegSetBits(context, SCPI_REG_ESR, errs[i].bit);
- }
- }
+ SCPI_ErrorEmit(context, err);
+ if (queue_overflow) {
+ SCPI_ErrorEmit(context, SCPI_ERROR_QUEUE_OVERFLOW);
+ }
- SCPI_ErrorEmit(context, err);
- if (queue_overflow) {
- SCPI_ErrorEmit(context, SCPI_ERROR_QUEUE_OVERFLOW);
-#if USE_DEVICE_DEPENDENT_ERROR_INFORMATION
- SCPIDEFINE_free(&context->error_info_heap, info_ptr, true);
-#endif
- }
-
- if (context) {
- context->cmd_error = TRUE;
- }
+ if (context) {
+ context->cmd_error = TRUE;
+ }
}
/**
@@ -193,8 +206,8 @@
* @param err - error number
*/
void SCPI_ErrorPush(scpi_t * context, int16_t err) {
- SCPI_ErrorPushEx(context, err, NULL);
- return;
+ SCPI_ErrorPushEx(context, err, NULL, 0);
+ return;
}
/**
@@ -204,7 +217,6 @@
*/
const char * SCPI_ErrorTranslate(int16_t err) {
switch (err) {
- case 0: return "No error";
#define X(def, val, str) case def: return str;
#if USE_FULL_ERROR_LIST
#define XE X
--
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