int launch_process(char *proc_name)
{
Tree *pTree = get_proc_binary(proc_name);
void *binary = (void *)((char *)pTree->fileInfo+sizeof(struct posix_header_ustar));
process_t *proc = NULL;
if (binary)
{
proc = create_process_new(binary, 0, -1, /* generate new pid */
pTree->name,
NULL,
0,
(char **const)env_variables,
kern_env_count);
}
return proc == NULL? -1: proc->pid;
}
void execve(process* p, char* bin_file,char* argv[], char* envp[]){
//printf("\n [in execve fn]Process %s called execve ,fd0 type=%c",p->p_name,p->fdtable[0].filetype);
process* new_p = create_process_new(p->pp,bin_file,0);
int is_background = is_background_process(argv);
//new_p->fdtable = p->fdtable;
new_p->maxfd = p->maxfd;
invalidate_r_queue(p->pid);
new_p->pid = p->pid;
//set the environment variable of the new process
set_env(new_p,argv,envp);
copy_fdtable(p,new_p);
free_process_memory(p);
if(is_background == 1){
new_p->is_background = 1;
child_update(new_p->pid);
}
add_to_readyQ(new_p);
}
process* create_process(process* pp, char* bin_file) {
return create_process_new(pp,bin_file,1);
}
