int encode_data(char *data, int *bytes_left, instruction *instr) {
int bytes_written = 0;
argument *arg;
for (
arg = instr->args;
(*bytes_left > 0) && (arg != NULL);
arg = arg->next
) {
int count = encode_argument(data, bytes_left, arg);
bytes_written += count;
data += count;
}
return bytes_written;
}
int encode_instruction(char *data, int *bytes_left, instruction *instr) {
int bytes_written = 0;
argument *arg;
if (Is_Meta) {
return Meta->encode(data, bytes_left, instr);
}
if (*bytes_left > 0) {
put_byte(Opcode);
for (
arg = instr->args;
(*bytes_left > 0) && (arg != NULL);
arg = arg->next
) {
int count = encode_argument(data, bytes_left, arg);
bytes_written += count;
data += count;
}
}
return bytes_written;
}
/**
* @brief
* encode_xml_arg_list takes current index, number of arguments
* passed to 'qsub' program and arguments as input and returns
* an encoded string(XML form) to 'qsub' program. It loops through each
* argument and converts that into an equivalent encoded string using
* ('encode_argument' function). For eg, if a1, a2 are the arguments,
* then it returns following encoded XML string to 'qsub' program.
* encoded string -- <jsdl-hpcpa:Argument>a1</jsdl-hpcpa:Argument>
* <jsdl-hpcpa:Argument>a2</jsdl-hpcpa:Argument>
*
* @param[in] optind - current index
* @param[in] argc - number of arguments passed to 'qsub' program
* @param[in] argv - arguments as input
*
* @return char*
* @retval An encoded string(XML form) to 'qsub' program in case of SUCCESS
* @retval NULL in case of failure
*/
extern char* encode_xml_arg_list(int optind, int argc, char **argv)
{
char *xml_string = NULL;
int cur_len = 1;
int j;
char *arg = NULL;
int jsdl_tag_len;
char *temp;
int first = 1;
char *escape_chars[PBS_NUM_ESC_CHARS];
long arg_max = -1;
jsdl_tag_len = sizeof(START_JSDL_ARG) + sizeof(END_JSDL_ARG) - 2;
if (argc > 0 && argv == NULL)
return NULL;
/*
* Initialize escape chars array and max number of
* chars an argument can hold.
*/
init_escapechars_maxarg(escape_chars, &arg_max);
/* Allocate memory to hold encoded argument */
arg = malloc(arg_max * sizeof(char *));
if (arg == NULL)
return NULL;
for (j = optind; j < argc; j++) {
if (argv[j] == NULL) {
if (xml_string)
free(xml_string);
break;
}
cur_len += strlen(argv[j]) + jsdl_tag_len;
temp = realloc(xml_string, cur_len);
if (temp == NULL) {
if (xml_string)
free(xml_string);
free(arg);
return NULL;
} else
xml_string = temp;
if (first) {
strcpy(xml_string, START_JSDL_ARG);
first = 0;
} else
strcat(xml_string, START_JSDL_ARG);
cur_len += encode_argument(argv[j], arg, escape_chars);
temp = realloc(xml_string, cur_len);
if (temp == NULL) {
free(xml_string);
free(arg);
return NULL;
} else
xml_string = temp;
strcat(xml_string, arg);
strcat(xml_string, END_JSDL_ARG);
arg[0] = '\0';
}
free(arg);
return xml_string;
}
