process.h

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#pragma once
 
#include <stddef.h>
#include <stdint.h>
#include "fs/Path.hpp"
 
#define PROCESS_MAX_ALLOCATIONS      1024
#define PROCESS_KEYBOARD_BUFFER_SIZE 1024
#define MAX_PROCESSES                12
 
struct process
{
    uint8_t id;

    char filename[MAX_PATH];

    struct task* task;

    void* allocations[PROCESS_MAX_ALLOCATIONS];
 
    // TODO: Make this ELFFile* when rewritten to C++
    void* elf;

    void* stack;

    void* bss;

    void* framebuffer;
 
    struct keyboard_buffer
    {
        char buffer[PROCESS_KEYBOARD_BUFFER_SIZE];
        int tail;
        int head;
    } keyboard;
 
    void* elf_entry;
 
    int argc;
    char** argv;
};
int process_load_switch(const char* filename, struct process* process);
int process_load(const char* filename, struct process* process);
struct process* process_current();
int process_switch(struct process* process);
void process_pushkey(struct process* process, char c);
char process_popkey(struct process* process);
void* process_malloc_flags(struct process* process, size_t size, int flags);
void* process_malloc(struct process* process, size_t size);
void process_free(struct process* process, void* address);
void process_terminate(struct process* process);
 
struct process** process_get_list();