process.h

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#ifndef __PROCC__PROCESS_H__
#define __PROCC__PROCESS_H__
 
#include "memory/vm_manager.h"
#include "spinlock.h"
#include <type.h>
 
#define MAX_PID_ALLOWED 4194304
#define INVALID_PID ((pid_t)-1)
 
typedef uint32_t pid_t;
 
struct process_node;
struct process_head {
    struct process_node* first;
};
 
struct process_node {
    struct process_node* next;
    struct process_node* prev;
};
 
// TODO: move paging page information into here
struct thread;
typedef struct process {
    pid_t pid;
    pid_t parent_pid;
 
    char name[64];
 
    struct thread* main_thread;
    struct fdtable* fdtable;
    int exit_code;
    bool exited;
 
    struct process_node cache;
 
    uintptr_t heap_start;
    uintptr_t heap_end;
    spinlock_t vm_lock;
    struct virtual_memory_page* vm_page;
 
    // linked list
    struct process* next;
    struct process* prev;
} __attribute__((aligned(64))) process_t;
 
struct thread;
 
pid_t alloc_pid();
void free_pid(pid_t pid);
 
process_t* create_process(char* name, struct thread* main_thread);
int execve(const char* path, char* const argv[], char* const envp[]);
 
#endif // __PROCC__PROCESS_H__