l_noret luaG_runerror (lua_State *L, const char *fmt, ...) {
va_list argp;
va_start(argp, fmt);
addinfo(L, luaO_pushvfstring(L, fmt, argp));
va_end(argp);
luaG_errormsg(L);
}
void luaG_runerror_ok (lua_State *L, const char *fmt, ...) {
//logt("luaG_runerror");
va_list argp;
va_start(argp, fmt);
addinfo(L, luaO_pushvfstring(L, fmt, argp));
va_end(argp);
luaG_errormsg(L);
}
/*--Function for compress file--*/
void
compress(char * str_in,lz78_compressor * in, struct bitio* file)
{
char* buf=malloc(16);
uint64_t inp=0;
int father=0;
int child=0;
int go=1;
uint64_t c=0;
int flag=0;
int ret=0;
struct bitio*file_out=bit_open(in->output_file,1);
/*After compress i put the info of the file at the beginning of the file*/
info* ret_info=malloc(sizeof(info));
/*Put the info at the beginning of the file and return a structure with the info*/
ret_info=addinfo(file_out,file,in->file_to_compress,0,in->d_max);
in->number_of_code^=in->number_of_code; //XOR
reset:
if(flag==0){
/*Only for the first character*/
ret=bit_read(file,(u_int)8,&inp);
buf[1]=(char)(inp&((1UL<<8)-1));
//printf("Ric: %X\n",buf[1] & 0xff);
}
printf("-----------\n");
while(go==1){
while(look_up_and_add(father,buf[1],in)==0){//repeat the operation until i don't fint a node =>scroll the tree
buf[0]=buf[1];
father=hash_table[hash(child,(char)(inp&((1UL<<8)-1)))].child_index;
//printf("Padre: %d\n",father);
ret=bit_read(file,(u_int)8,&inp);
buf[1]=(char)(inp&((1UL<<8)-1));
//printf("Ric: %X\n",buf[1] & 0xff);
child=father;
}
//printf("Output: %X Char %c\n",father & 0xff,buf[1]);
bit_write(file_out,16, (int) father);
in->number_of_code++;
father=0; // restart from the root
child=0;
c++;
if(ret==0)break;
if(in->counter_child_tree>=in->d_max-1){
//I need to empty the tree and restart the compressio from the current position
free(hash_table);
in->counter_child_tree=0;
hash_init(6700417,in);
goto reset;
};
}
flush_out_buffer(file_out);
//add the SHA-1 of the compressed-file in the header
long old_index=ftell(file_out->f);//save the curren pointer to position of the file
struct bitio* file_out_rd=bit_open(in->output_file,0);//I re-open the output file but in in read mode this time
getSHA1(88,in->number_of_code,file_out_rd,ret_info); //I do the SHA-1 over the whole file
bit_close(file_out_rd);
fseek(file_out->f,(long)0x40,SEEK_SET); //I write the SHA-1 hash in the correct position
//printf("SHA-1: ");
for (int i = 0; i < 20; i ++) {
bit_write(file_out,(u_int)8*sizeof(unsigned char),(unsigned char)ret_info->sha1[i]);
// printf(" %2x", (unsigned char)ret_info->sha1[i]);
}
bit_write(file_out,(u_int)32,in->number_of_code);
//printf("\n");
flush_out_buffer(file_out);
fseek(file_out->f,old_index,SEEK_SET); // restore the pointer of the file in order to close the file in the rigth way
//close the file descriptor
bit_close(file_out);
}
