#pragma once
#ifndef LWIP_ARCH_SYS_ARCH_H
#define LWIP_ARCH_SYS_ARCH_H

#include <stdint.h>
#include <lwip/opt.h>

#ifdef __cplusplus
extern "C" {
#endif

struct sys_sem;
typedef struct sys_sem* sys_sem_t;
#define SYS_SEM_NULL NULL
#define sys_sem_valid(sem)             ((sem) && (*(sem) != NULL))
#define sys_sem_valid_val(sem)         ((sem) != NULL)
#define sys_sem_set_invalid(sem)       do { if ((sem)) { *(sem) = NULL; } } while (0)
#define sys_sem_set_invalid_val(sem)   do { (sem) = NULL; } while (0)

struct sys_mutex;
typedef struct sys_mutex* sys_mutex_t;
#define sys_mutex_valid(mutex)         ((mutex) && (*(mutex) != NULL))
#define sys_mutex_valid_val(mutex)     ((mutex) != NULL)
#define sys_mutex_set_invalid(mutex)   do { if ((mutex)) { *(mutex) = NULL; } } while (0)

struct sys_mbox;
typedef struct sys_mbox* sys_mbox_t;
#define SYS_MBOX_NULL NULL
#define sys_mbox_valid(mbox)           ((mbox) && (*(mbox) != NULL))
#define sys_mbox_valid_val(mbox)       ((mbox) != NULL)
#define sys_mbox_set_invalid(mbox)     do { if ((mbox)) { *(mbox) = NULL; } } while (0)
#define sys_mbox_set_invalid_val(mbox) do { (mbox) = NULL; } while (0)

/*
 * lwIP only treats sys_thread_t as an opaque handle. Keep it pointer-sized.
 *
 * Do NOT make this a by-value incomplete struct. MSVC may compile callers
 * that see only the incomplete type with a hidden struct-return parameter,
 * which shifts sys_thread_new(name, thread, arg, ...) so the callee receives
 * thread == name and arg == thread. The first tcpip_thread then jumps into
 * the literal string "tcpip" as code.
 */
typedef void* sys_thread_t;

void LwipPortSetTimerQuery(uint64_t (*query_ticks_us)(void));

#ifdef __cplusplus
}
#endif

#endif /* LWIP_ARCH_SYS_ARCH_H */