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add utils to main lib

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0x1d
2018-11-15 12:46:13 +01:00
parent 95fcfa8b2c
commit 616f392f62
3 changed files with 133 additions and 1 deletions
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25
lib/sprocket-utils/utils_print.cpp
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@@ -1,25 +0,0 @@
#include "utils_print.h"
int FORMAT_BUFFER_SIZE(const char* format, ...) {
va_list args;
va_start(args, format);
int result = vsnprintf(NULL, 0, format, args);
va_end(args);
return result + 1; // safe byte for \0
}
void PRINT_MSG(Print &out, const char* prefix, const char* format, ...) {
if(SPROCKET_PRINT){
out.print(String(prefix) + String(": "));
char formatString[128], *ptr;
strncpy_P( formatString, format, sizeof(formatString) ); // copy in from program mem
// null terminate - leave last char since we might need it in worst case for result's \0
formatString[ sizeof(formatString)-2 ]='\0';
ptr=&formatString[ strlen(formatString)+1 ]; // our result buffer...
va_list args;
va_start (args,format);
vsnprintf(ptr, sizeof(formatString)-1-strlen(formatString), formatString, args );
va_end (args);
formatString[ sizeof(formatString)-1 ]='\0';
out.print(ptr);
}
}

15
lib/sprocket-utils/utils_print.h
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@@ -1,15 +0,0 @@
#ifndef __SPROCKET_UTILS__
#define __SPROCKET_UTILS__
#include <Arduino.h>
#ifndef SPROCKET_PRINT
#define SPROCKET_PRINT 1
#endif
// TODO move to sprocket
int FORMAT_BUFFER_SIZE(const char* format, ...);
void PRINT_MSG(Print &out, const char* prefix, const char* format, ...);
#endif