--- a/modbus/mb_runtime.c Tue Apr 06 16:07:56 2021 +0200
+++ b/modbus/mb_runtime.c Fri Apr 09 09:47:06 2021 +0200
@@ -200,12 +200,42 @@
}
-static int __read_inbits (void *mem_map, u16 start_addr, u16 bit_count, u8 *data_bytes)
- {return __pack_bits(((server_mem_t *)mem_map)->ro_bits, start_addr, bit_count, data_bytes);}
-static int __read_outbits (void *mem_map, u16 start_addr, u16 bit_count, u8 *data_bytes)
- {return __pack_bits(((server_mem_t *)mem_map)->rw_bits, start_addr, bit_count, data_bytes);}
-static int __write_outbits (void *mem_map, u16 start_addr, u16 bit_count, u8 *data_bytes)
- {return __unpack_bits(((server_mem_t *)mem_map)->rw_bits, start_addr, bit_count, data_bytes); }
+static int __read_inbits (void *mem_map, u16 start_addr, u16 bit_count, u8 *data_bytes) {
+ int res = __pack_bits(((server_mem_t *)mem_map)->ro_bits, start_addr, bit_count, data_bytes);
+
+ if (res >= 0) {
+ /* update the flag and counter of Modbus requests we have processed. */
+ ((server_mem_t *)mem_map)->flag_read_req_counter++;
+ ((server_mem_t *)mem_map)->flag_read_req_flag = 1;
+ }
+
+ return res;
+}
+
+static int __read_outbits (void *mem_map, u16 start_addr, u16 bit_count, u8 *data_bytes) {
+ int res = __pack_bits(((server_mem_t *)mem_map)->rw_bits, start_addr, bit_count, data_bytes);
+
+ if (res >= 0) {
+ /* update the flag and counter of Modbus requests we have processed. */
+ ((server_mem_t *)mem_map)->flag_read_req_counter++;
+ ((server_mem_t *)mem_map)->flag_read_req_flag = 1;
+ }
+
+ return res;
+}
+
+static int __write_outbits (void *mem_map, u16 start_addr, u16 bit_count, u8 *data_bytes) {
+ int res = __unpack_bits(((server_mem_t *)mem_map)->rw_bits, start_addr, bit_count, data_bytes);
+
+ if (res >= 0) {
+ /* update the flag and counter of Modbus requests we have processed. */
+ ((server_mem_t *)mem_map)->flag_write_req_counter++;
+ ((server_mem_t *)mem_map)->flag_write_req_flag = 1;
+ }
+
+ return res;
+}
+
@@ -214,6 +244,10 @@
if ((start_addr + word_count) > MEM_AREA_SIZE)
return -ERR_ILLEGAL_DATA_ADDRESS; /* ERR_ILLEGAL_DATA_ADDRESS defined in mb_util.h */
+ /* update the flag and counter of Modbus requests we have processed. */
+ ((server_mem_t *)mem_map)->flag_read_req_counter++;
+ ((server_mem_t *)mem_map)->flag_read_req_flag = 1;
+
/* use memcpy() because loop with pointers (u16 *) caused alignment problems */
memcpy(/* dest */ (void *)data_words,
/* src */ (void *)&(((server_mem_t *)mem_map)->ro_words[start_addr]),
@@ -228,6 +262,10 @@
if ((start_addr + word_count) > MEM_AREA_SIZE)
return -ERR_ILLEGAL_DATA_ADDRESS; /* ERR_ILLEGAL_DATA_ADDRESS defined in mb_util.h */
+ /* update the flag and counter of Modbus requests we have processed. */
+ ((server_mem_t *)mem_map)->flag_read_req_counter++;
+ ((server_mem_t *)mem_map)->flag_read_req_flag = 1;
+
/* use memcpy() because loop with pointers (u16 *) caused alignment problems */
memcpy(/* dest */ (void *)data_words,
/* src */ (void *)&(((server_mem_t *)mem_map)->rw_words[start_addr]),
@@ -243,6 +281,10 @@
if ((start_addr + word_count) > MEM_AREA_SIZE)
return -ERR_ILLEGAL_DATA_ADDRESS; /* ERR_ILLEGAL_DATA_ADDRESS defined in mb_util.h */
+ /* update the flag and counter of Modbus requests we have processed. */
+ ((server_mem_t *)mem_map)->flag_write_req_counter++;
+ ((server_mem_t *)mem_map)->flag_write_req_flag = 1;
+
/* WARNING: The data returned in the data_words[] array is not guaranteed to be 16 bit aligned.
* It is not therefore safe to cast it to an u16 data type.
* The following code cannot be used. memcpy() is used instead.
@@ -545,6 +587,10 @@
// -1 --> modbus node created!; no thread created
// >=0 --> modbus node created!; thread created!
server_nodes[index].mb_nd = -2;
+ server_nodes[index].mem_area.flag_write_req_flag = 0;
+ server_nodes[index].mem_area.flag_write_req_counter = 0;
+ server_nodes[index].mem_area.flag_read_req_counter = 0;
+ server_nodes[index].mem_area.flag_read_req_flag = 0;
/* see comment in mb_runtime.h to understad why we need to initialize these entries */
switch (server_nodes[index].node_address.naf) {
case naf_tcp: