csu3_am335x/EVSE/Modularization/ocppfiles/hashmap.c

/*
 * hashmap.c
 *
 *  Created on: 2019 ~4  27  
 *      Author: foluswen
 */
#include <sys/types.h>
#include <sys/stat.h>
#include "hashmap.h"
#include <stdlib.h>
#include <stdio.h>
#include <string.h>
#include <pthread.h>
#include <unistd.h>     /*Unix 標準函數定義*/
#include "SystemLogMessage.h"

typedef enum boolean { FALSE, TRUE } BOOL;
static pthread_mutex_t m = PTHREAD_MUTEX_INITIALIZER;

#if 0
#define INITIAL_SIZE (2000)//(256)
#define MAX_CHAIN_LENGTH (8)


//static map_t hashMap;

// Compile with -pthread
// Create a mutex this ready to be locked!
static pthread_mutex_t m;// = PTHREAD_MUTEX_INITIALIZER;

/* We need to keep keys and values */
typedef struct _hashmap_element{
	char key[KEY_MAX_LENGTH];//char* key;
	int in_use;
	char data[VALUE_MAX_LENGTH];//any_t data;
} hashmap_element;

/* A hashmap has some maximum size and current size,
 * as well as the data to hold. */
typedef struct _hashmap_map{
	int table_size;
	int size;
	//hashmap_element *data; ---> remove temporally
	hashmap_element data[2000];
} hashmap_map;


static struct _hashmap_map hashMap[0]={0};

/*
 * Return an empty hashmap, or NULL on failure.
 */
map_t hashmap_new() {
	printf("hashmap_new\n");
	memset(&hashMap, 0, sizeof hashMap);
	printf("hashmap_new 1\n");
	hashMap[0].table_size = INITIAL_SIZE;
	hashMap[0].size = 0;
	printf("(hashmap_new) hashMap.table_size=%d",hashMap[0].table_size);
	return NULL;
#if 0
	hashmap_map* m = (hashmap_map*) malloc(sizeof(hashmap_map));
	if(!m) goto err;

	memset(m, 0, sizeof(hashmap_map));

	m->data = (hashmap_element*) calloc(INITIAL_SIZE, sizeof(hashmap_element));
	if(!m->data) goto err;

	m->table_size = INITIAL_SIZE;
	m->size = 0;

	return m;
	err:
		if (m)
			hashmap_free(m);
		return NULL;
#endif
}

/* The implementation here was originally done by Gary S. Brown.  I have
   borrowed the tables directly, and made some minor changes to the
   crc32-function (including changing the interface). //ylo */

  /* ============================================================= */
  /*  COPYRIGHT (C) 1986 Gary S. Brown.  You may use this program, or       */
  /*  code or tables extracted from it, as desired without restriction.     */
  /*                                                                        */
  /*  First, the polynomial itself and its table of feedback terms.  The    */
  /*  polynomial is                                                         */
  /*  X^32+X^26+X^23+X^22+X^16+X^12+X^11+X^10+X^8+X^7+X^5+X^4+X^2+X^1+X^0   */
  /*                                                                        */
  /*  Note that we take it "backwards" and put the highest-order term in    */
  /*  the lowest-order bit.  The X^32 term is "implied"; the LSB is the     */
  /*  X^31 term, etc.  The X^0 term (usually shown as "+1") results in      */
  /*  the MSB being 1.                                                      */
  /*                                                                        */
  /*  Note that the usual hardware shift register implementation, which     */
  /*  is what we're using (we're merely optimizing it by doing eight-bit    */
  /*  chunks at a time) shifts bits into the lowest-order term.  In our     */
  /*  implementation, that means shifting towards the right.  Why do we     */
  /*  do it this way?  Because the calculated CRC must be transmitted in    */
  /*  order from highest-order term to lowest-order term.  UARTs transmit   */
  /*  characters in order from LSB to MSB.  By storing the CRC this way,    */
  /*  we hand it to the UART in the order low-byte to high-byte; the UART   */
  /*  sends each low-bit to hight-bit; and the result is transmission bit   */
  /*  by bit from highest- to lowest-order term without requiring any bit   */
  /*  shuffling on our part.  Reception works similarly.                    */
  /*                                                                        */
  /*  The feedback terms table consists of 256, 32-bit entries.  Notes:     */
  /*                                                                        */
  /*      The table can be generated at runtime if desired; code to do so   */
  /*      is shown later.  It might not be obvious, but the feedback        */
  /*      terms simply represent the results of eight shift/xor opera-      */
  /*      tions for all combinations of data and CRC register values.       */
  /*                                                                        */
  /*      The values must be right-shifted by eight bits by the "updcrc"    */
  /*      logic; the shift must be unsigned (bring in zeroes).  On some     */
  /*      hardware you could probably optimize the shift in assembler by    */
  /*      using byte-swap instructions.                                     */
  /*      polynomial $edb88320                                              */
  /*                                                                        */
  /*  --------------------------------------------------------------------  */

static unsigned long crc32_tab[] = {
      0x00000000L, 0x77073096L, 0xee0e612cL, 0x990951baL, 0x076dc419L,
      0x706af48fL, 0xe963a535L, 0x9e6495a3L, 0x0edb8832L, 0x79dcb8a4L,
      0xe0d5e91eL, 0x97d2d988L, 0x09b64c2bL, 0x7eb17cbdL, 0xe7b82d07L,
      0x90bf1d91L, 0x1db71064L, 0x6ab020f2L, 0xf3b97148L, 0x84be41deL,
      0x1adad47dL, 0x6ddde4ebL, 0xf4d4b551L, 0x83d385c7L, 0x136c9856L,
      0x646ba8c0L, 0xfd62f97aL, 0x8a65c9ecL, 0x14015c4fL, 0x63066cd9L,
      0xfa0f3d63L, 0x8d080df5L, 0x3b6e20c8L, 0x4c69105eL, 0xd56041e4L,
      0xa2677172L, 0x3c03e4d1L, 0x4b04d447L, 0xd20d85fdL, 0xa50ab56bL,
      0x35b5a8faL, 0x42b2986cL, 0xdbbbc9d6L, 0xacbcf940L, 0x32d86ce3L,
      0x45df5c75L, 0xdcd60dcfL, 0xabd13d59L, 0x26d930acL, 0x51de003aL,
      0xc8d75180L, 0xbfd06116L, 0x21b4f4b5L, 0x56b3c423L, 0xcfba9599L,
      0xb8bda50fL, 0x2802b89eL, 0x5f058808L, 0xc60cd9b2L, 0xb10be924L,
      0x2f6f7c87L, 0x58684c11L, 0xc1611dabL, 0xb6662d3dL, 0x76dc4190L,
      0x01db7106L, 0x98d220bcL, 0xefd5102aL, 0x71b18589L, 0x06b6b51fL,
      0x9fbfe4a5L, 0xe8b8d433L, 0x7807c9a2L, 0x0f00f934L, 0x9609a88eL,
      0xe10e9818L, 0x7f6a0dbbL, 0x086d3d2dL, 0x91646c97L, 0xe6635c01L,
      0x6b6b51f4L, 0x1c6c6162L, 0x856530d8L, 0xf262004eL, 0x6c0695edL,
      0x1b01a57bL, 0x8208f4c1L, 0xf50fc457L, 0x65b0d9c6L, 0x12b7e950L,
      0x8bbeb8eaL, 0xfcb9887cL, 0x62dd1ddfL, 0x15da2d49L, 0x8cd37cf3L,
      0xfbd44c65L, 0x4db26158L, 0x3ab551ceL, 0xa3bc0074L, 0xd4bb30e2L,
      0x4adfa541L, 0x3dd895d7L, 0xa4d1c46dL, 0xd3d6f4fbL, 0x4369e96aL,
      0x346ed9fcL, 0xad678846L, 0xda60b8d0L, 0x44042d73L, 0x33031de5L,
      0xaa0a4c5fL, 0xdd0d7cc9L, 0x5005713cL, 0x270241aaL, 0xbe0b1010L,
      0xc90c2086L, 0x5768b525L, 0x206f85b3L, 0xb966d409L, 0xce61e49fL,
      0x5edef90eL, 0x29d9c998L, 0xb0d09822L, 0xc7d7a8b4L, 0x59b33d17L,
      0x2eb40d81L, 0xb7bd5c3bL, 0xc0ba6cadL, 0xedb88320L, 0x9abfb3b6L,
      0x03b6e20cL, 0x74b1d29aL, 0xead54739L, 0x9dd277afL, 0x04db2615L,
      0x73dc1683L, 0xe3630b12L, 0x94643b84L, 0x0d6d6a3eL, 0x7a6a5aa8L,
      0xe40ecf0bL, 0x9309ff9dL, 0x0a00ae27L, 0x7d079eb1L, 0xf00f9344L,
      0x8708a3d2L, 0x1e01f268L, 0x6906c2feL, 0xf762575dL, 0x806567cbL,
      0x196c3671L, 0x6e6b06e7L, 0xfed41b76L, 0x89d32be0L, 0x10da7a5aL,
      0x67dd4accL, 0xf9b9df6fL, 0x8ebeeff9L, 0x17b7be43L, 0x60b08ed5L,
      0xd6d6a3e8L, 0xa1d1937eL, 0x38d8c2c4L, 0x4fdff252L, 0xd1bb67f1L,
      0xa6bc5767L, 0x3fb506ddL, 0x48b2364bL, 0xd80d2bdaL, 0xaf0a1b4cL,
      0x36034af6L, 0x41047a60L, 0xdf60efc3L, 0xa867df55L, 0x316e8eefL,
      0x4669be79L, 0xcb61b38cL, 0xbc66831aL, 0x256fd2a0L, 0x5268e236L,
      0xcc0c7795L, 0xbb0b4703L, 0x220216b9L, 0x5505262fL, 0xc5ba3bbeL,
      0xb2bd0b28L, 0x2bb45a92L, 0x5cb36a04L, 0xc2d7ffa7L, 0xb5d0cf31L,
      0x2cd99e8bL, 0x5bdeae1dL, 0x9b64c2b0L, 0xec63f226L, 0x756aa39cL,
      0x026d930aL, 0x9c0906a9L, 0xeb0e363fL, 0x72076785L, 0x05005713L,
      0x95bf4a82L, 0xe2b87a14L, 0x7bb12baeL, 0x0cb61b38L, 0x92d28e9bL,
      0xe5d5be0dL, 0x7cdcefb7L, 0x0bdbdf21L, 0x86d3d2d4L, 0xf1d4e242L,
      0x68ddb3f8L, 0x1fda836eL, 0x81be16cdL, 0xf6b9265bL, 0x6fb077e1L,
      0x18b74777L, 0x88085ae6L, 0xff0f6a70L, 0x66063bcaL, 0x11010b5cL,
      0x8f659effL, 0xf862ae69L, 0x616bffd3L, 0x166ccf45L, 0xa00ae278L,
      0xd70dd2eeL, 0x4e048354L, 0x3903b3c2L, 0xa7672661L, 0xd06016f7L,
      0x4969474dL, 0x3e6e77dbL, 0xaed16a4aL, 0xd9d65adcL, 0x40df0b66L,
      0x37d83bf0L, 0xa9bcae53L, 0xdebb9ec5L, 0x47b2cf7fL, 0x30b5ffe9L,
      0xbdbdf21cL, 0xcabac28aL, 0x53b39330L, 0x24b4a3a6L, 0xbad03605L,
      0xcdd70693L, 0x54de5729L, 0x23d967bfL, 0xb3667a2eL, 0xc4614ab8L,
      0x5d681b02L, 0x2a6f2b94L, 0xb40bbe37L, 0xc30c8ea1L, 0x5a05df1bL,
      0x2d02ef8dL
   };

/* Return a 32-bit CRC of the contents of the buffer. */

unsigned long crc32(const unsigned char *s, unsigned int len)
{
  unsigned int i;
  unsigned long crc32val;

  crc32val = 0;
  for (i = 0;  i < len;  i ++)
    {
      crc32val =
	crc32_tab[(crc32val ^ s[i]) & 0xff] ^
	  (crc32val >> 8);
    }
  return crc32val;
}

/*
 * Hashing function for a string
 */
unsigned int hashmap_hash_int(hashmap_map * m, char* keystring){

    unsigned long key = crc32((unsigned char*)(keystring), strlen(keystring));

	/* Robert Jenkins' 32 bit Mix Function */
	key += (key << 12);
	key ^= (key >> 22);
	key += (key << 4);
	key ^= (key >> 9);
	key += (key << 10);
	key ^= (key >> 2);
	key += (key << 7);
	key ^= (key >> 12);

	/* Knuth's Multiplicative Method */
	key = (key >> 3) * 2654435761;
	printf("table_size=%d\n",hashMap[0].table_size);

	return key % hashMap[0].table_size;//key % m->table_size;
}

/*
 * Return the integer of the location in data
 * to store the point to the item, or MAP_FULL.
 */
int hashmap_hash(map_t in, char* key){
	int curr;
	int i;

	/* If full, return immediately */
	printf("hashMap[0].table_size=%d\n",hashMap[0].table_size);
	if(hashMap[0].size >= (hashMap[0].table_size/2)) return MAP_FULL;

	/* Find the best index */
	curr = hashmap_hash_int(hashMap, key);

	/* Linear probing */
	for(i = 0; i< MAX_CHAIN_LENGTH; i++){
		if(hashMap[0].data[curr].in_use == 0)
		{
			printf(" no in_use \n");
			return curr;
		}


		if(hashMap[0].data[curr].in_use == 1 && (strcmp(hashMap[0].data[curr].key,key)==0))
		{
			printf("key use, key exist!!!!\n");
			return curr;
		}


			curr = (curr + 1) % hashMap[0].table_size;
	}

	return MAP_FULL;

#if 0
	/* Cast the hashmap */
	hashmap_map* m = (hashmap_map *) in;

	/* If full, return immediately */
	printf("m->table_size=%d\n",m->table_size);
	if(m->size >= (m->table_size/2)) return MAP_FULL;

	/* Find the best index */
	curr = hashmap_hash_int(m, key);

	/* Linear probing */
	for(i = 0; i< MAX_CHAIN_LENGTH; i++){
		if(m->data[curr].in_use == 0)
		{
		    printf(" no in_use \n");
			return curr;
		}


		if(m->data[curr].in_use == 1 && (strcmp(m->data[curr].key,key)==0))
		{
			printf("key use, key exist!!!!\n");
			return curr;
		}


		curr = (curr + 1) % m->table_size;
	}

	return MAP_FULL;
#endif
}

/*
 * Doubles the size of the hashmap, and rehashes all the elements
 */
int hashmap_rehash(map_t in){


#if 0
	int i;
	int old_size;
	hashmap_element* curr;

	/* Setup the new elements */
	hashmap_map *m = (hashmap_map *) in;
	hashmap_element* temp = (hashmap_element *)
		calloc(2 * m->table_size, sizeof(hashmap_element));
	if(!temp) return MAP_OMEM;

	/* Update the array */
	curr = m->data;
	m->data = temp;

	/* Update the size */
	old_size = m->table_size;
	m->table_size = 2 * m->table_size;
	m->size = 0;

	/* Rehash the elements */
	for(i = 0; i < old_size; i++){
        int status;

        if (curr[i].in_use == 0)
            continue;

		status = hashmap_put(m, curr[i].key, curr[i].data);
		if (status != MAP_OK)
			return status;
	}

	free(curr);

	return MAP_OK;
#endif
	return MAP_OK;
}

/*
 * Add a pointer to the hashmap with some key
 */
int hashmap_put(map_t in, char* key, any_t value){

	int index;

	/* Find a place to put our value */
	index = hashmap_hash(in, key);
	while(index == MAP_FULL){
#if 0
			if (hashmap_rehash(in) == MAP_OMEM) {
				return MAP_OMEM;
			}
#endif
		memset(&hashMap[0].data, 0, sizeof(struct _hashmap_map));
		hashMap[0].table_size = INITIAL_SIZE;
		hashMap[0].size = 0;
		index = hashmap_hash(in, key);
	}

	printf("hash index=%d\n",index);
	/* Set the data */
	strcpy(hashMap[0].data[index].data, value);
	strcpy(hashMap[0].data[index].key, key);
	//m->data[index].data = value;
	//m->data[index].key = key;
	hashMap[0].data[index].in_use = 1;
	hashMap[0].size++;

	printf("hash m->data[index].data=%s\n",hashMap[0].data[index].data);
	printf("hash m->data[index].key=%s\n",hashMap[0].data[index].key);
	printf("hash m->data[index].in_use=%d\n",hashMap[0].data[index].in_use);

	return MAP_OK;

#if 0
	hashmap_map* m;

	/* Cast the hashmap */
	m = (hashmap_map *) in;

	/* Find a place to put our value */
	index = hashmap_hash(in, key);
	while(index == MAP_FULL){
		if (hashmap_rehash(in) == MAP_OMEM) {
			return MAP_OMEM;
		}
		index = hashmap_hash(in, key);
	}

	printf("hash index=%d\n",index);
	/* Set the data */
	strcpy(m->data[index].data, value);
	strcpy(m->data[index].key, key);
	//m->data[index].data = value;
	//m->data[index].key = key;
	m->data[index].in_use = 1;
	m->size++;

	printf("hash m->data[index].data=%s\n",m->data[index].data);
	printf("hash m->data[index].key=%s\n",m->data[index].key);
	printf("hash m->data[index].in_use=%d\n",m->data[index].in_use);

	return MAP_OK;
#endif
}

/*
 * Get your pointer out of the hashmap with a key
 */
int hashmap_get(map_t in, char* key, any_t *arg){
	int curr;
	int i;

	/* Find data location */
	curr = hashmap_hash_int(hashMap, key);
	printf("MAP_get curr=%d\n",curr);

	/* Linear probing, if necessary */
	for(i = 0; i<MAX_CHAIN_LENGTH; i++){

	        int in_use = hashMap[0].data[curr].in_use;
	        printf("MAP_get in use=%d\n",in_use);
	        if (in_use == 1){
	        	printf("MAP_get hashMap.data[curr].key=%s\n", hashMap[0].data[curr].key);
	        	printf("MAP_get hashMap.data[curr].data=%s\n", hashMap[0].data[curr].data);
	            if (strcmp(hashMap[0].data[curr].key,key)==0){
	            	strcpy(arg, hashMap[0].data[curr].data);
	                //*arg = (m->data[curr].data);
	                printf("MAP_OK curr=%d\n",curr);
	                return MAP_OK;
	            }
			}

			curr = (curr + 1) % hashMap[0].table_size;
			printf("MAP_MISSING curr=%d\n",curr);
	}

	memset(arg, 0, sizeof arg);
	//*arg = NULL;

	/* Not found */
	return MAP_MISSING;

#if 0
	int curr;
	int i;
	hashmap_map* m;

	/* Cast the hashmap */
	m = (hashmap_map *) in;

	/* Find data location */
	curr = hashmap_hash_int(m, key);
	printf("MAP_get curr=%d\n",curr);
	/* Linear probing, if necessary */
	for(i = 0; i<MAX_CHAIN_LENGTH; i++){

        int in_use = m->data[curr].in_use;
        printf("MAP_get in use=%d\n",in_use);
        if (in_use == 1){
        	printf("MAP_get m->data[curr].key=%s\n", m->data[curr].key);
        	printf("MAP_get m->data[curr].data=%s\n", m->data[curr].data);
            if (strcmp(m->data[curr].key,key)==0){
            	strcpy(arg, m->data[curr].data);
                //*arg = (m->data[curr].data);
                printf("MAP_OK curr=%d\n",curr);
                return MAP_OK;
            }
		}

		curr = (curr + 1) % m->table_size;
		  printf("MAP_MISSING curr=%d\n",curr);
	}

	memset(arg, 0, sizeof arg);
	//*arg = NULL;

	/* Not found */
	return MAP_MISSING;
#endif
}

/*
 * Iterate the function parameter over each element in the hashmap.  The
 * additional any_t argument is passed to the function as its first
 * argument and the hashmap element is the second.
 */
#if 0
int hashmap_iterate(map_t in, PFany f, any_t item) {
	int i;

	/* Cast the hashmap */
	hashmap_map* m = (hashmap_map*) in;

	/* On empty hashmap, return immediately */
	if (hashmap_length(m) <= 0)
		return MAP_MISSING;

	/* Linear probing */
	for(i = 0; i< m->table_size; i++)
		if(m->data[i].in_use != 0) {
			any_t data = (any_t) (m->data[i].data);
			int status = f(item, data);
			if (status != MAP_OK) {
				return status;
			}
		}

    return MAP_OK;
}
#endif
/*
 * Remove an element with that key from the map
 */
int hashmap_remove(map_t in, char* key){

	int i;
	int curr;

	/* Find key */
		curr = hashmap_hash_int(hashMap, key);

		/* Linear probing, if necessary */
		for(i = 0; i<MAX_CHAIN_LENGTH; i++){

	        int in_use = hashMap[0].data[curr].in_use;
	        if (in_use == 1){
	            if (strcmp(hashMap[0].data[curr].key,key)==0){
	                /* Blank out the fields */
	            	hashMap[0].data[curr].in_use = 0;
	                memset(hashMap[0].data[curr].data, 0, sizeof hashMap[0].data[curr].data);
	                memset(hashMap[0].data[curr].key, 0, sizeof hashMap[0].data[curr].key);
	               // m->data[curr].data = NULL;
	               // m->data[curr].key = NULL;

	                printf("remove m->size=%d \n",hashMap[0].size);
	                /* Reduce the size */
	                hashMap[0].size--;

	                printf("remove ok!\n");
	                return MAP_OK;
	            }
			}
			curr = (curr + 1) % hashMap[0].table_size;
		}

		/* Data not found */
		return MAP_MISSING;

#if 0
	int i;
	int curr;
	hashmap_map* m;

	/* Cast the hashmap */
	m = (hashmap_map *) in;

	/* Find key */
	curr = hashmap_hash_int(m, key);

	/* Linear probing, if necessary */
	for(i = 0; i<MAX_CHAIN_LENGTH; i++){

        int in_use = m->data[curr].in_use;
        if (in_use == 1){
            if (strcmp(m->data[curr].key,key)==0){
                /* Blank out the fields */
                m->data[curr].in_use = 0;
                memset(m->data[curr].data, 0, sizeof m->data[curr].data);
                memset(m->data[curr].key, 0, sizeof m->data[curr].key);
               // m->data[curr].data = NULL;
               // m->data[curr].key = NULL;

                printf("remove m->size=%d \n",m->size);
                /* Reduce the size */
                m->size--;

                printf("remove ok!\n");
                return MAP_OK;
            }
		}
		curr = (curr + 1) % m->table_size;
	}

	/* Data not found */
	return MAP_MISSING;
#endif
}

/* Deallocate the hashmap */
void hashmap_free(map_t in){

	memset(&hashMap, 0, sizeof(hashMap));

#if 0
	hashmap_map* m = (hashmap_map*) in;
	free(m->data);
	free(m);
#endif
}

/* Return the length of the hashmap */
int hashmap_length(map_t in){
	return hashMap[0].size;
#if 0
	hashmap_map* m = (hashmap_map *) in;
	if(m != NULL) return m->size;
	else return 0;
#endif
}
#endif

int MessageSent_add(char *uuid, char *data)
{
FILE *outfile;
char rmFileCmd[100]={0};
struct stat stats;
char tempstring[100]={0};

stat("/Storage/OCPP", &stats);
// Check for directory existence
if (S_ISDIR(stats.st_mode) == 1)
{
	//printf("\n directory exist \n");
}
else
{
	printf("\n directory not exist, create dir \n");
	sprintf(rmFileCmd,"mkdir -p %s","/Storage/OCPP");
	system(rmFileCmd);
}

memset(&rmFileCmd, 0, sizeof rmFileCmd);

if((access("/Storage/OCPP/MessageSent",F_OK))!=-1)
{
	//printf("MessageSent exist.\n");
}
else
{
	printf("MessageSent not exist\n");
	FILE *log = fopen("/Storage/OCPP/MessageSent", "w+");

	if(log == NULL)
	{
		printf("Can't Create File MessageSent \n");
		return 0;
	}
	else
	{
		fclose(log);
	}
}

// open file for writing
outfile = fopen ("/Storage/OCPP/MessageSent", "a");
sprintf(tempstring,"%s,%s\n", uuid,data);
fputs(tempstring, outfile);
fclose (outfile);
//printf("MessageSent add\n");
return 1;
}

int MessageSent_get(char *uuid, char *data)
{
	FILE *fp;
	int result = FALSE; // 1: TRUE  0:FALSE
	char str[1200]={0};
	char sstr[50]={ 0 }, datastr[30]={0};//sstr[200]={ 0 };
	//int pos = 0, l = 0, c = 0;
	int c = 0;
	char *loc;
	char rmFileCmd[100]={0};
	struct stat stats;
	stat("/Storage/OCPP", &stats);

	// Check for directory existence
	if (S_ISDIR(stats.st_mode) == 1)
	{
		//printf("\n directory exist \n");
	}
	else
	{
		printf("\n directory not exist, create dir \n");
		sprintf(rmFileCmd,"mkdir -p %s","/Storage/OCPP");
		system(rmFileCmd);
	}

	memset(&rmFileCmd, 0, sizeof rmFileCmd);

	if((access("/Storage/OCPP/MessageSent",F_OK))!=-1)
	{
		//printf("MessageSent exist.\n");
	}
	else
	{
		printf("MessageSent not exist\n");
		FILE *log = fopen("/Storage/OCPP/MessageSent", "w+");

		if(log == NULL)
		{
			printf("Can't Create File MessageSent \n");
			return 0;
		}
		else
		{
			fclose(log);
		}
	}


	/* opening file for reading */
	fp = fopen("/Storage/OCPP/MessageSent" , "r");
	if(fp == NULL) {
		printf("Error opening file");
		return FALSE;
	}

	c = fgetc(fp);
	//printf("c:%d\n",c);
	rewind(fp);

	if(c == EOF)
	{
		printf("MessageSent is null\n");
		//strcpy(uuid,"");
		strcpy(data,"");
		result = FALSE;
	}
	else
	{
		result = FALSE;
		while (fgets (str, 1200, fp)!=NULL)
		{
			//printf("Orignal File get strings \n");
			str[strlen(str) - 1] = '\0'; // eat the newline fgets() stores

			/* writing content to stdout */
			//puts(str);
			//printf("str[0]=%c\n",str[0]);

			/*********************uuid***************/
			int d = 0;
			while (str[d] != ',')
			{
				sstr[d] = str[d];
				d=d+ 1;
			}
			sstr[d] = '\0';

			//printf("sstr=%s\n",sstr);
			//printf("uuid=%s\n",uuid);

			if(strcmp(sstr, uuid) == 0)
			{
				//printf("\n uuid:%s compare all right!!! ", sstr);

				loc = strstr(str, ",");
				memset(sstr ,0, sizeof(sstr) );
				int e = 0;
				while (loc[1+e] != '\0')
				{
					datastr[e] = loc[1+e];
					e++;
				}
				datastr[e] = '\0';

				//printf("\n data:%s", datastr);
				//strcpy(uuid,sstr);
				strcpy(data,datastr);
				result = TRUE;
				break;
			}


		}
	}


	fclose(fp);
	return result;

}

int MessageSent_remove(char *uuid, char *data)
{
char tempfile[] = "/Storage/OCPP/temp1.json";
FILE *infile;
FILE *outfile;
int  resultRename=0;
char filename[60]={0};
char rmFileCmd[100]={0};
char tempstring[100]={0};
struct stat stats;
stat("../Storage/OCPP", &stats);

// Check for directory existence
if (S_ISDIR(stats.st_mode) == 1)
{
	//printf("\n directory exist \n");
}
else
{
	printf("\n directory not exist, create dir \n");
	sprintf(rmFileCmd,"mkdir -p %s","../Storage/OCPP");
	system(rmFileCmd);
}

memset(&rmFileCmd, 0, sizeof rmFileCmd);

if((access("/Storage/OCPP/MessageSent",F_OK))!=-1)
{
	//printf("MessageSent exist.\n");
}
else
{
	printf("MessageSent not exist\n");
	FILE *log = fopen("/Storage/OCPP/MessageSent", "w+");

	if(log == NULL)
	{
		printf("log is NULL\n");
		return 0;
	}
	else
	{
		fclose(log);
	}
}


sprintf(tempstring,"%s,%s", uuid,data);

// open file for writing
strcpy(filename, "/Storage/OCPP/MessageSent");
infile = fopen ("/Storage/OCPP/MessageSent", "r");
outfile = fopen (tempfile, "w");

/*检测到文件结束标识返回1，否则返回0。*/
//DEBUG_INFO("feof(infile) =%d\n",feof(infile));
int c;
c = fgetc(infile);
//printf("file c:%d\n",c);
rewind(infile);

if(c == EOF)
{
	printf("MessageSent is  NULL\n");

	fclose(infile);
	fclose(outfile);

	sprintf(rmFileCmd,"rm -f %s",tempfile);
	system(rmFileCmd);
}
else
{
	char buf[1200]={0};

	//int i = 0;
	//printf("Orignal File is not NULL\n");
	while (fgets(buf, sizeof(buf), infile) != NULL)
	{
		//printf("Orignal File get strings \n");
		buf[strlen(buf) - 1] = '\0'; // eat the newline fgets() stores

		//printf("buf=%s\n",buf);
		//printf("tempstring=%s\n",tempstring);
		//if(i != 0)
		if(strcmp(tempstring, buf)== 0)
		{
			//printf("Remove OK ! \n");
		}
		else
		{
			fprintf(outfile,"%s\n", buf);
		}

		//i = i + 1;
	}

	fclose(infile);
	fclose(outfile);

	sprintf(rmFileCmd,"rm -f %s",filename);
	system(rmFileCmd);

	resultRename = rename(tempfile, filename);

	if(resultRename == 0)
	{
		//printf("File renamed successfully");
	}
	else
	{
		printf("Error: unable to rename the file");
	}
}

return 0;

}

#if 0
/* type: 0 (put ); type: 1(get); type: 3(remove) */
int hashmap_operation(int type, map_t in, char* key, any_t value, any_t *arg){

	pthread_mutex_init(&m,NULL);
	pthread_mutex_lock(&m);
	int result=0;
	printf("\nhashmap_operation hashMap table size=%d \n", hashMap[0].table_size);
	printf("\nhashmap_operation hashMap key=%s \n", key);
	printf("\nhashmap_operation hashMap value=%s \n", arg);
	if(type == 0)
		result = hashmap_put(hashMap/*in*/, key, arg);
	else if(type  == 1)
		result = hashmap_get(hashMap/*in*/, key, arg);
	else if(type == 2)
		result = hashmap_remove(hashMap/*in*/, key);
	pthread_mutex_unlock(&m);
	printf("\nhashmap_operation 1 \n");
	return result;
}
#endif

/* type: 0 (add ); type: 1(get); type: 3(remove) */
int hashmap_operation(int type, char *uuid, char *data)
{

	//pthread_mutex_init(&m,NULL);
	pthread_mutex_lock(&m);
	int result=0;

	if(type == 0)
		result = MessageSent_add(uuid, data);
	else if(type  == 1)
		result = MessageSent_get(uuid,data);
	else if(type == 2)
		result = MessageSent_remove(uuid, data);
	pthread_mutex_unlock(&m);
	//printf("\nhashmap_operation 1 \n");
	return result;
}



#if 0
void hashmapForMessageNew(void)
{
	hashmap_new();
}

void hashmapForMessageFree(void)
{
	hashmap_free(&hashMap);
}

int hashmapForMessageLength(void)
{
	return hashmap_length(&hashMap);
}

#endif