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WIP on kernel syscalls

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This commit is contained in:
ngiddings
2021-05-01 17:09:50 -05:00
parent 7caf49065d
commit c962a83ff0
14 changed files with 142 additions and 31 deletions
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39
include/kernel.h
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@@ -4,26 +4,41 @@
#include "priorityqueue.h"
#include "resource.h"
#include "module.h"
#include "process.h"
#include "memorymap.h"
#include "syscallid.h"
#include <stddef.h>
enum syscall_id_t
typedef size_t (*syscall_t)(struct kernel_t*, size_t, size_t, size_t);
enum process_state_t
{
SYSCALL_TEST = 1,
SYSCALL_YIELD,
SYSCALL_MMAP,
SYSCALL_MUNMAP
PROCESS_ACTIVE,
PROCESS_WAITING
};
typedef size_t (*syscall_t)(struct kernel_t*, size_t, size_t, size_t);
struct process_context_t;
struct message_t
{
uint16_t sender, type;
uint32_t param1, param2, param3;
};
struct process_t
{
size_t priority;
size_t resource_id;
physaddr_t page_table;
struct process_context_t *state;
struct message_t *message;
};
struct kernel_t
{
struct page_stack_t *page_stack;
struct priority_queue_t *priority_queue;
struct process_t *active_process;
struct resource_table_t *resource_table;
struct process_t *active_process;
};
extern syscall_t syscall_table[32];
@@ -38,6 +53,12 @@ size_t do_syscall(struct kernel_t *kernel, enum syscall_id_t id, size_t arg1, si
int load_module(struct kernel_t *kernel, struct module_t *module);
struct process_state_t *next_process(struct kernel_t *kernel, struct process_state_t *prev_state);
struct process_context_t *next_process(struct kernel_t *kernel, struct process_context_t *prev_state);
int terminate_process(struct kernel_t *kernel, size_t process_id);
int accept_message(struct kernel_t *kernel, size_t process_id, struct message_t *message);
int send_message(struct kernel_t *kernel, size_t process_id, const struct message_t *message);
void panic(const char *message) __attribute__ ((noreturn));