/**
* @brief This thread represents a print spooler which directly talks to a single printer
* @param param
* The PRINT_SPOOL_PARAM this printer should pull its jobs from, casted to a void*
* @return NULL
*
* This function should loop forever. The basic process is as follows:
* 1) pop a print job from this threads queue
* 2) if it is NULL return
* 3) print to the log file that printing of the job is starting
* 4) call the print method on the printer object of the param and check the return
* 5) handel errors correctly
* 6) destroy the print job and get the next
*/
void *spooler(void* param)
{
struct PRINTER_SPOOLER_PARAM* params = malloc(sizeof(struct PRINTER_SPOOLER_PARAM));
params = (struct PRINTER_SPOOLER_PARAM*)param;
queue_t queue = params->print_queue_list;
printer_t printer = params->printer_driver;
struct arguments arguments = params->arguments;
queue_ends_t q_ends = QUEUE_HEAD;
print_job_t* popped;
FILE *file;
char *str;
while(1){
popped = queue_pop(queue, q_ends);
if (popped == NULL){
printer_uninstall(printer);
return NULL;
}
file = fopen(arguments.log_file_name, "a");
if(file == NULL){
fprintf(stderr, "%s: error opening log file\n", __func__);
exit(-1);
}
asprintf(&str, "Starting to print job %s\n", popped->job_name);
fputs(str,file);
fclose(file);
printer_print(printer, popped);
}
}
int main(int argc, char* argv[])
{
struct arguments arguments;
arguments.list = 0;
arguments.output_file_name = "";
arguments.description = "";
arguments.driver = "";
argp_parse(&argp, argc, argv, 0, 0, &arguments);
if(arguments.list == 1) {
int num = 3;
printer_driver_t** list = printer_list_drivers(&num);
return 0;
} else {
return printer_print(NULL, arguments.driver, "cli-job", arguments.description, "DATA");
}
}
