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add server for realtime monitoring and parameters changing

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This commit is contained in:
Edward Emelianov
2025-07-15 17:37:45 +03:00
parent c35f38ccd6
commit 0074eac5d8
8 changed files with 312 additions and 125 deletions
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52
modbus_params/modbus.c
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@@ -27,8 +27,10 @@
#include "verbose.h"
static FILE *dumpfile = NULL;
static char *dumpname = NULL;
static dicentry_t *dumppars = NULL;
static int dumpsize = 0;
static double dumpTime = 0.1;
static dicentry_t *dictionary = NULL;
static int dictsize = 0;
@@ -167,7 +169,8 @@ int opendumpfile(const char *name){
WARN("Can't open %s", name);
return FALSE;
}
fprintf(dumpfile, "# time,s ");
dumpname = strdup(name);
fprintf(dumpfile, "# time,s ");
for(int i = 0; i < dumpsize; ++i){
fprintf(dumpfile, "%s ", dumppars[i].code);
}
@@ -175,6 +178,8 @@ int opendumpfile(const char *name){
return TRUE;
}
char *getdumpname(){ return dumpname;}
void closedumpfile(){
if(dumpfile && !isstopped){
if(!isstopped){
@@ -182,6 +187,7 @@ void closedumpfile(){
while(!isstopped);
}
fclose(dumpfile);
FREE(dumpname);
}
}
@@ -193,7 +199,7 @@ static void *dumpthread(void *p){
double startT = sl_dtime();
while(!stopdump){
double t0 = sl_dtime();
fprintf(dumpfile, "%6.3g", t0 - startT);
fprintf(dumpfile, "%10.3f ", t0 - startT);
for(int i = 0; i < dumpsize; ++i){
if(!read_entry(&dumppars[i])) fprintf(dumpfile, "---- ");
else fprintf(dumpfile, "%4d ", dumppars[i].value);
@@ -205,20 +211,23 @@ static void *dumpthread(void *p){
return NULL;
}
int rundump(double dT){
if(!dumpfile){
WARNX("Open dump file first");
return FALSE;
}
int setDumpT(double dT){
if(dT < 0.){
WARNX("Time interval should be > 0");
return FALSE;
}
dumpTime = dT;
DBG("user give dT: %g", dT);
return TRUE;
}
int rundump(){
if(!dumpfile){
WARNX("Open dump file first");
return FALSE;
}
pthread_t thread;
static double T = 0.;
if(T != dT) T = dT;
DBG("user give dT: %g", T);
if(pthread_create(&thread, NULL, dumpthread, (void*)&T)){
if(pthread_create(&thread, NULL, dumpthread, (void*)&dumpTime)){
WARN("Can't create dumping thread");
return FALSE;
}
@@ -237,19 +246,32 @@ void close_modbus(){
// read register and modify entry->reg; return FALSE if failed
int read_entry(dicentry_t *entry){
if(!entry) return FALSE;
if(!entry){
WARNX("NULL instead of entry");
return FALSE;
}
int ret = TRUE;
pthread_mutex_lock(&modbus_mutex);
if(modbus_read_registers(modbus_ctx, entry->reg, 1, &entry->value) < 0) ret = FALSE;
if(modbus_read_registers(modbus_ctx, entry->reg, 1, &entry->value) < 0){
WARNX("Can't read entry by reg %u", entry->reg);
ret = FALSE;
}
pthread_mutex_unlock(&modbus_mutex);
return ret;
}
// write register value; FALSE - if failed or read-only
int write_entry(dicentry_t *entry){
if(!entry || entry->readonly) return FALSE;
if(!entry || entry->readonly){
if(!entry) WARNX("NULL instead of entry");
else WARNX("Can't write readonly entry %u", entry->reg);
return FALSE;
}
int ret = TRUE;
pthread_mutex_lock(&modbus_mutex);
if(modbus_write_register(modbus_ctx, entry->reg, entry->value) < 0) ret = FALSE;
if(modbus_write_register(modbus_ctx, entry->reg, entry->value) < 0){
WARNX("Error writing %u to %u", entry->value, entry->reg);
ret = FALSE;
}
pthread_mutex_unlock(&modbus_mutex);
return ret;
}