Tasmota/lib/libesp32/Berry/default/be_port.cpp

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/********************************************************************
** Copyright (c) 2018-2020 Guan Wenliang
** This file is part of the Berry default interpreter.
** skiars@qq.com, https://github.com/Skiars/berry
** See Copyright Notice in the LICENSE file or at
** https://github.com/Skiars/berry/blob/master/LICENSE
********************************************************************/
#include "berry.h"
#include "be_mem.h"
#include "be_sys.h"
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// #include <stdio.h>
#include <string.h>
#include <Arduino.h>
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// Local pointer for file managment
#include <FS.h>
extern FS *dfsp;
/* this file contains configuration for the file system. */
/* standard input and output */
extern "C" {
int strncmp_PP(const char * str1P, const char * str2P, size_t size)
{
int result = 0;
while (size > 0)
{
char ch1 = pgm_read_byte(str1P++);
char ch2 = pgm_read_byte(str2P++);
result = ch1 - ch2;
if (result != 0 || ch2 == '\0')
{
break;
}
size--;
}
return result;
}
//
char * strchr_P(const char *s, int c) {
do {
if (pgm_read_byte(s) == c) {
return (char*)s;
}
} while (pgm_read_byte(s++));
return (0);
}
}
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// We need to create a local buffer, since we might mess up mqtt_data
#ifndef BERRY_LOGSZ
#define BERRY_LOGSZ 128
#endif
static char log_berry_buffer[BERRY_LOGSZ] = { 0, };
extern void berry_log(const char * berry_buf);
BERRY_API void be_writebuffer(const char *buffer, size_t length)
{
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if (buffer == nullptr || length == 0) { return; }
uint32_t idx = 0;
while (idx < length) {
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;
break;
}
}
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, sizeof(log_berry_buffer), "%s%.*s", log_berry_buffer, chars_to_append, &buffer[idx]); // append at most `length` chars
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if (cr_pos >= 0) {
// flush
berry_log(log_berry_buffer);
log_berry_buffer[0] = 0; // clear string
}
idx += chars_to_append + 1; // skip '\n'
}
// Serial.write(buffer, length);
// be_fwrite(stdout, buffer, length);
}
BERRY_API char* be_readstring(char *buffer, size_t size)
{
return 0;
// return be_fgets(stdin, buffer, (int)size);
}
/* use the standard library implementation file API. */
void* be_fopen(const char *filename, const char *modes)
{
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if (dfsp != nullptr && filename != nullptr && modes != nullptr) {
// Serial.printf("be_fopen filename=%s, modes=%s\n", filename, modes);
File f = dfsp->open(filename, modes); // returns an object, not a pointer
if (f) {
File * f_ptr = new File(f); // copy to dynamic object
*f_ptr = f; // TODO is this necessary?
return f_ptr;
}
}
return nullptr;
// return fopen(filename, modes);
}
int be_fclose(void *hfile)
{
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// Serial.printf("be_fclose\n");
if (dfsp != nullptr && hfile != nullptr) {
File * f_ptr = (File*) hfile;
f_ptr->close();
delete f_ptr;
return 0;
}
return -1;
// return fclose(hfile);
}
size_t be_fwrite(void *hfile, const void *buffer, size_t length)
{
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// Serial.printf("be_fwrite %d\n", length);
if (dfsp != nullptr && hfile != nullptr && buffer != nullptr) {
File * f_ptr = (File*) hfile;
return f_ptr->write((const uint8_t*) buffer, length);
}
return 0;
// return fwrite(buffer, 1, length, hfile);
}
size_t be_fread(void *hfile, void *buffer, size_t length)
{
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// Serial.printf("be_fread %d\n", length);
if (dfsp != nullptr && hfile != nullptr && buffer != nullptr) {
File * f_ptr = (File*) hfile;
int32_t ret = f_ptr->read((uint8_t*) buffer, length);
if (ret >= 0) {
// Serial.printf("be_fread ret = %d\n", ret);
return ret;
}
}
return 0;
// return fread(buffer, 1, length, hfile);
}
char* be_fgets(void *hfile, void *buffer, int size)
{
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// Serial.printf("be_fgets %d\n", size);
uint8_t * buf = (uint8_t*) buffer;
if (dfsp != nullptr && hfile != nullptr && buffer != nullptr && size > 0) {
File * f_ptr = (File*) hfile;
int ret = f_ptr->readBytesUntil('\n', buf, size - 1);
if (ret >= 0) {
buf[ret] = 0; // add string terminator
return (char*) buffer;
}
}
return nullptr;
// return fgets(buffer, size, hfile);
}
int be_fseek(void *hfile, long offset)
{
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// Serial.printf("be_fseek %d\n", offset);
if (dfsp != nullptr && hfile != nullptr) {
File * f_ptr = (File*) hfile;
if (f_ptr->seek(offset)) {
return 0; // success
}
}
return -1;
// return fseek(hfile, offset, SEEK_SET);
}
long int be_ftell(void *hfile)
{
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// Serial.printf("be_ftell\n");
if (dfsp != nullptr && hfile != nullptr) {
File * f_ptr = (File*) hfile;
return f_ptr->position();
}
return 0;
// return ftell(hfile);
}
long int be_fflush(void *hfile)
{
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// Serial.printf("be_fflush\n");
if (dfsp != nullptr && hfile != nullptr) {
File * f_ptr = (File*) hfile;
f_ptr->flush();
}
return 0;
// return fflush(hfile);
}
size_t be_fsize(void *hfile)
{
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// Serial.printf("be_fsize\n");
if (dfsp != nullptr && hfile != nullptr) {
File * f_ptr = (File*) hfile;
return f_ptr->size();
}
// long int size, offset = be_ftell(hfile);
// fseek(hfile, 0L, SEEK_END);
// size = ftell(hfile);
// fseek(hfile, offset, SEEK_SET);
// return size;
return 0;
}
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#if BE_USE_FILE_SYSTEM
#if defined(USE_FATFS) /* FatFs */
int be_isdir(const char *path)
{
FILINFO fno;
FRESULT fr = f_stat(path, &fno);
return fr == FR_OK && fno.fattrib & AM_DIR;
}
int be_isfile(const char *path)
{
FILINFO fno;
FRESULT fr = f_stat(path, &fno);
return fr == FR_OK && !(fno.fattrib & AM_DIR);
}
int be_isexist(const char *path)
{
FILINFO fno;
return f_stat(path, &fno) == FR_OK;
}
char* be_getcwd(char *buf, size_t size)
{
FRESULT fr = f_getcwd(buf, (UINT)size);
return fr == FR_OK ? buf : NULL;
}
int be_chdir(const char *path)
{
return f_chdir(path);
}
int be_mkdir(const char *path)
{
return f_mkdir(path);
}
int be_unlink(const char *filename)
{
return f_unlink(filename);
}
int be_dirfirst(bdirinfo *info, const char *path)
{
info->dir = be_os_malloc(sizeof(DIR));
info->file = be_os_malloc(sizeof(FILINFO));
if (info->dir && info->file) {
FRESULT fr = f_opendir(info->dir, path);
return fr == FR_OK ? be_dirnext(info) : 1;
}
be_os_free(info->dir);
be_os_free(info->file);
info->dir = NULL;
info->file = NULL;
return 1;
}
int be_dirnext(bdirinfo *info)
{
FRESULT fr = f_readdir(info->dir, info->file);
info->name = ((FILINFO *)info->file)->fname;
return fr != FR_OK || *info->name == '\0';
}
int be_dirclose(bdirinfo *info)
{
if (info->dir) {
int res = f_closedir(info->dir) != FR_OK;
be_os_free(info->dir);
be_os_free(info->file);
return res;
}
return 1;
}
#elif defined(_MSC_VER) /* MSVC*/
#include <windows.h>
#include <direct.h>
#include <io.h>
int be_isdir(const char *path)
{
DWORD type = GetFileAttributes(path);
return type != INVALID_FILE_ATTRIBUTES
&& (type & FILE_ATTRIBUTE_DIRECTORY) != 0;
}
int be_isfile(const char *path)
{
DWORD type = GetFileAttributes(path);
return type != INVALID_FILE_ATTRIBUTES
&& (type & FILE_ATTRIBUTE_DIRECTORY) == 0;
}
int be_isexist(const char *path)
{
return GetFileAttributes(path) != INVALID_FILE_ATTRIBUTES;
}
char* be_getcwd(char *buf, size_t size)
{
return _getcwd(buf, (int)size);
}
int be_chdir(const char *path)
{
return _chdir(path);
}
int be_mkdir(const char *path)
{
return _mkdir(path);
}
int be_unlink(const char *filename)
{
return remove(filename);
}
int be_dirfirst(bdirinfo *info, const char *path)
{
char *buf = be_os_malloc(strlen(path) + 3);
info->file = be_os_malloc(sizeof(struct _finddata_t));
info->dir = NULL;
if (buf && info->file) {
struct _finddata_t *cfile = info->file;
strcat(strcpy(buf, path), "/*");
info->dir = (void *)_findfirst(buf, cfile);
info->name = cfile->name;
be_os_free(buf);
return (intptr_t)info->dir == -1;
}
be_os_free(buf);
return 1;
}
int be_dirnext(bdirinfo *info)
{
struct _finddata_t *cfile = info->file;
int res = _findnext((intptr_t)info->dir, cfile) != 0;
info->name = cfile->name;
return res;
}
int be_dirclose(bdirinfo *info)
{
be_os_free(info->file);
return _findclose((intptr_t)info->dir) != 0;
}
#else /* must be POSIX */
#include <dirent.h>
#include <unistd.h>
#include <sys/stat.h>
int be_isdir(const char *path)
{
struct stat path_stat;
int res = stat(path, &path_stat);
return res == 0 && S_ISDIR(path_stat.st_mode);
}
int be_isfile(const char *path)
{
struct stat path_stat;
int res = stat(path, &path_stat);
return res == 0 && !S_ISDIR(path_stat.st_mode);
}
int be_isexist(const char *path)
{
struct stat path_stat;
return stat(path, &path_stat) == 0;
}
char* be_getcwd(char *buf, size_t size)
{
return getcwd(buf, size);
}
int be_chdir(const char *path)
{
return chdir(path);
}
int be_mkdir(const char *path)
{
#ifdef _WIN32
return mkdir(path);
#else
return mkdir(path, S_IRWXU | S_IRWXG | S_IROTH | S_IXOTH);
#endif
}
int be_unlink(const char *filename)
{
return remove(filename);
}
int be_dirfirst(bdirinfo *info, const char *path)
{
info->dir = opendir(path);
if (info->dir) {
return be_dirnext(info);
}
return 1;
}
int be_dirnext(bdirinfo *info)
{
struct dirent *file;
info->file = file = readdir(info->dir);
if (file) {
info->name = file->d_name;
return 0;
}
return 1;
}
int be_dirclose(bdirinfo *info)
{
return closedir(info->dir) != 0;
}
#endif /* POSIX */
#endif /* BE_USE_OS_MODULE || BE_USE_FILE_SYSTEM */