mirror of https://github.com/arendst/Tasmota.git
485 lines
11 KiB
C++
485 lines
11 KiB
C++
/********************************************************************
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** Copyright (c) 2018-2020 Guan Wenliang
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** This file is part of the Berry default interpreter.
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** skiars@qq.com, https://github.com/Skiars/berry
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** See Copyright Notice in the LICENSE file or at
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** https://github.com/Skiars/berry/blob/master/LICENSE
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********************************************************************/
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#include "berry.h"
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#include "be_mem.h"
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#include "be_sys.h"
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// #include <stdio.h>
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#include <string.h>
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#include <Arduino.h>
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// from https://github.com/eyalroz/cpp-static-block
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#include "static_block.hpp"
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// Local pointer for file managment
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#ifdef USE_UFILESYS
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#include <FS.h>
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extern FS *ufsp;
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#endif // USE_UFILESYS
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/* this file contains configuration for the file system. */
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/* standard input and output */
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extern "C" {
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int strncmp_PP(const char * str1P, const char * str2P, size_t size)
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{
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int result = 0;
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while (size > 0)
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{
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char ch1 = pgm_read_byte(str1P++);
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char ch2 = pgm_read_byte(str2P++);
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result = ch1 - ch2;
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if (result != 0 || ch2 == '\0')
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{
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break;
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}
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size--;
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}
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return result;
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}
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//
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char * strchr_P(const char *s, int c) {
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do {
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if (pgm_read_byte(s) == c) {
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return (char*)s;
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}
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} while (pgm_read_byte(s++));
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return (0);
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}
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}
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// We need to create a local buffer, since we might mess up mqtt_data
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#ifndef BERRY_LOGSZ
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#define BERRY_LOGSZ 700
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#endif
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extern "C" {
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extern void *berry_malloc(size_t size);
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}
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static char * log_berry_buffer = nullptr;
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static_block {
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log_berry_buffer = (char*) berry_malloc(BERRY_LOGSZ);
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if (log_berry_buffer) log_berry_buffer[0] = 0;
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}
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extern void berry_log(const char * berry_buf);
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BERRY_API void be_writebuffer(const char *buffer, size_t length)
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{
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if (!log_berry_buffer) return;
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if (buffer == nullptr || length == 0) { return; }
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uint32_t idx = 0;
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while (idx < length) {
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int32_t cr_pos = -1;
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// find next occurence of '\n' or '\r'
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for (uint32_t i = idx; i < length; i++) {
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if ((pgm_read_byte(&buffer[i]) == '\n') || (pgm_read_byte(&buffer[i]) == '\r')) {
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cr_pos = i;
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break;
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}
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}
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uint32_t chars_to_append = (cr_pos >= 0) ? cr_pos - idx : length - idx; // note cr_pos < length
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snprintf(log_berry_buffer, BERRY_LOGSZ, "%s%.*s", log_berry_buffer, chars_to_append, &buffer[idx]); // append at most `length` chars
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if (cr_pos >= 0) {
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// flush
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berry_log(log_berry_buffer);
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log_berry_buffer[0] = 0; // clear string
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}
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idx += chars_to_append + 1; // skip '\n'
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}
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// Serial.write(buffer, length);
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// be_fwrite(stdout, buffer, length);
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}
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BERRY_API char* be_readstring(char *buffer, size_t size)
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{
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return 0;
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// return be_fgets(stdin, buffer, (int)size);
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}
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/* use the standard library implementation file API. */
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void* be_fopen(const char *filename, const char *modes)
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{
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#ifdef USE_UFILESYS
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if (ufsp != nullptr && filename != nullptr && modes != nullptr) {
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char fname2[strlen(filename) + 2];
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if (filename[0] == '/') {
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strcpy(fname2, filename); // copy unchanged
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} else {
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fname2[0] = '/';
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strcpy(fname2 + 1, filename); // prepend with '/'
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}
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// Serial.printf("be_fopen filename=%s, modes=%s\n", filename, modes);
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File f = ufsp->open(fname2, modes); // returns an object, not a pointer
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if (f) {
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File * f_ptr = new File(f); // copy to dynamic object
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*f_ptr = f; // TODO is this necessary?
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return f_ptr;
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}
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}
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#endif // USE_UFILESYS
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return nullptr;
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// return fopen(filename, modes);
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}
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int be_fclose(void *hfile)
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{
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#ifdef USE_UFILESYS
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// Serial.printf("be_fclose\n");
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if (ufsp != nullptr && hfile != nullptr) {
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File * f_ptr = (File*) hfile;
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f_ptr->close();
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delete f_ptr;
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return 0;
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}
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#endif // USE_UFILESYS
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return -1;
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// return fclose(hfile);
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}
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size_t be_fwrite(void *hfile, const void *buffer, size_t length)
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{
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#ifdef USE_UFILESYS
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// Serial.printf("be_fwrite %d\n", length);
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if (ufsp != nullptr && hfile != nullptr && buffer != nullptr) {
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File * f_ptr = (File*) hfile;
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return f_ptr->write((const uint8_t*) buffer, length);
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}
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#endif // USE_UFILESYS
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return 0;
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// return fwrite(buffer, 1, length, hfile);
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}
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size_t be_fread(void *hfile, void *buffer, size_t length)
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{
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#ifdef USE_UFILESYS
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// Serial.printf("be_fread %d\n", length);
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if (ufsp != nullptr && hfile != nullptr && buffer != nullptr) {
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File * f_ptr = (File*) hfile;
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int32_t ret = f_ptr->read((uint8_t*) buffer, length);
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if (ret >= 0) {
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// Serial.printf("be_fread ret = %d\n", ret);
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return ret;
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}
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}
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#endif // USE_UFILESYS
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return 0;
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// return fread(buffer, 1, length, hfile);
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}
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char* be_fgets(void *hfile, void *buffer, int size)
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{
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#ifdef USE_UFILESYS
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// Serial.printf("be_fgets %d\n", size);
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uint8_t * buf = (uint8_t*) buffer;
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if (ufsp != nullptr && hfile != nullptr && buffer != nullptr && size > 0) {
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File * f_ptr = (File*) hfile;
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int ret = f_ptr->readBytesUntil('\n', buf, size - 1);
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if (ret >= 0) {
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buf[ret] = 0; // add string terminator
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return (char*) buffer;
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}
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}
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#endif // USE_UFILESYS
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return nullptr;
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// return fgets(buffer, size, hfile);
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}
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int be_fseek(void *hfile, long offset)
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{
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#ifdef USE_UFILESYS
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// Serial.printf("be_fseek %d\n", offset);
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if (ufsp != nullptr && hfile != nullptr) {
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File * f_ptr = (File*) hfile;
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if (f_ptr->seek(offset)) {
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return 0; // success
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}
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}
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#endif // USE_UFILESYS
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return -1;
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// return fseek(hfile, offset, SEEK_SET);
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}
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long int be_ftell(void *hfile)
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{
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#ifdef USE_UFILESYS
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// Serial.printf("be_ftell\n");
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if (ufsp != nullptr && hfile != nullptr) {
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File * f_ptr = (File*) hfile;
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return f_ptr->position();
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}
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#endif // USE_UFILESYS
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return 0;
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// return ftell(hfile);
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}
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long int be_fflush(void *hfile)
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{
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#ifdef USE_UFILESYS
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// Serial.printf("be_fflush\n");
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if (ufsp != nullptr && hfile != nullptr) {
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File * f_ptr = (File*) hfile;
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f_ptr->flush();
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}
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#endif // USE_UFILESYS
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return 0;
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// return fflush(hfile);
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}
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size_t be_fsize(void *hfile)
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{
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#ifdef USE_UFILESYS
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// Serial.printf("be_fsize\n");
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if (ufsp != nullptr && hfile != nullptr) {
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File * f_ptr = (File*) hfile;
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return f_ptr->size();
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}
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// long int size, offset = be_ftell(hfile);
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// fseek(hfile, 0L, SEEK_END);
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// size = ftell(hfile);
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// fseek(hfile, offset, SEEK_SET);
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// return size;
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#endif // USE_UFILESYS
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return 0;
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}
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#if BE_USE_FILE_SYSTEM
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#if defined(USE_FATFS) /* FatFs */
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int be_isdir(const char *path)
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{
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FILINFO fno;
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FRESULT fr = f_stat(path, &fno);
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return fr == FR_OK && fno.fattrib & AM_DIR;
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}
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int be_isfile(const char *path)
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{
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FILINFO fno;
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FRESULT fr = f_stat(path, &fno);
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return fr == FR_OK && !(fno.fattrib & AM_DIR);
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}
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int be_isexist(const char *path)
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{
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FILINFO fno;
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return f_stat(path, &fno) == FR_OK;
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}
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char* be_getcwd(char *buf, size_t size)
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{
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FRESULT fr = f_getcwd(buf, (UINT)size);
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return fr == FR_OK ? buf : NULL;
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}
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int be_chdir(const char *path)
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{
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return f_chdir(path);
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}
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int be_mkdir(const char *path)
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{
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return f_mkdir(path);
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}
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int be_unlink(const char *filename)
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{
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return f_unlink(filename);
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}
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int be_dirfirst(bdirinfo *info, const char *path)
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{
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info->dir = be_os_malloc(sizeof(DIR));
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info->file = be_os_malloc(sizeof(FILINFO));
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if (info->dir && info->file) {
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FRESULT fr = f_opendir(info->dir, path);
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return fr == FR_OK ? be_dirnext(info) : 1;
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}
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be_os_free(info->dir);
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be_os_free(info->file);
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info->dir = NULL;
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info->file = NULL;
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return 1;
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}
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int be_dirnext(bdirinfo *info)
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{
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FRESULT fr = f_readdir(info->dir, info->file);
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info->name = ((FILINFO *)info->file)->fname;
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return fr != FR_OK || *info->name == '\0';
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}
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int be_dirclose(bdirinfo *info)
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{
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if (info->dir) {
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int res = f_closedir(info->dir) != FR_OK;
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be_os_free(info->dir);
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be_os_free(info->file);
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return res;
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}
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return 1;
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}
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#elif defined(_MSC_VER) /* MSVC*/
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#include <windows.h>
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#include <direct.h>
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#include <io.h>
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int be_isdir(const char *path)
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{
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DWORD type = GetFileAttributes(path);
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return type != INVALID_FILE_ATTRIBUTES
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&& (type & FILE_ATTRIBUTE_DIRECTORY) != 0;
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}
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int be_isfile(const char *path)
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{
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DWORD type = GetFileAttributes(path);
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return type != INVALID_FILE_ATTRIBUTES
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&& (type & FILE_ATTRIBUTE_DIRECTORY) == 0;
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}
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int be_isexist(const char *path)
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{
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return GetFileAttributes(path) != INVALID_FILE_ATTRIBUTES;
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}
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char* be_getcwd(char *buf, size_t size)
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{
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return _getcwd(buf, (int)size);
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}
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int be_chdir(const char *path)
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{
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return _chdir(path);
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}
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int be_mkdir(const char *path)
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{
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return _mkdir(path);
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}
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int be_unlink(const char *filename)
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{
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return remove(filename);
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}
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int be_dirfirst(bdirinfo *info, const char *path)
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{
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char *buf = be_os_malloc(strlen(path) + 3);
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info->file = be_os_malloc(sizeof(struct _finddata_t));
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info->dir = NULL;
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if (buf && info->file) {
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struct _finddata_t *cfile = info->file;
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strcat(strcpy(buf, path), "/*");
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info->dir = (void *)_findfirst(buf, cfile);
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info->name = cfile->name;
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be_os_free(buf);
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return (intptr_t)info->dir == -1;
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}
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be_os_free(buf);
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return 1;
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}
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int be_dirnext(bdirinfo *info)
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{
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struct _finddata_t *cfile = info->file;
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int res = _findnext((intptr_t)info->dir, cfile) != 0;
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info->name = cfile->name;
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return res;
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}
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int be_dirclose(bdirinfo *info)
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{
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be_os_free(info->file);
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return _findclose((intptr_t)info->dir) != 0;
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}
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#else /* must be POSIX */
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#include <dirent.h>
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#include <unistd.h>
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#include <sys/stat.h>
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int be_isdir(const char *path)
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{
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struct stat path_stat;
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int res = stat(path, &path_stat);
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return res == 0 && S_ISDIR(path_stat.st_mode);
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}
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int be_isfile(const char *path)
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{
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struct stat path_stat;
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int res = stat(path, &path_stat);
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return res == 0 && !S_ISDIR(path_stat.st_mode);
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}
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int be_isexist(const char *path)
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{
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struct stat path_stat;
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return stat(path, &path_stat) == 0;
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}
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char* be_getcwd(char *buf, size_t size)
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{
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return getcwd(buf, size);
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}
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int be_chdir(const char *path)
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{
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return chdir(path);
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}
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int be_mkdir(const char *path)
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{
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#ifdef _WIN32
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return mkdir(path);
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#else
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return mkdir(path, S_IRWXU | S_IRWXG | S_IROTH | S_IXOTH);
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#endif
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}
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int be_unlink(const char *filename)
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{
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return remove(filename);
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}
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int be_dirfirst(bdirinfo *info, const char *path)
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{
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info->dir = opendir(path);
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if (info->dir) {
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return be_dirnext(info);
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}
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return 1;
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}
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int be_dirnext(bdirinfo *info)
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{
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struct dirent *file;
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info->file = file = readdir(info->dir);
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if (file) {
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info->name = file->d_name;
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return 0;
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}
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return 1;
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}
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int be_dirclose(bdirinfo *info)
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{
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return closedir(info->dir) != 0;
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}
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#endif /* POSIX */
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#endif /* BE_USE_OS_MODULE || BE_USE_FILE_SYSTEM */
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