threads.h

Go to the documentation of this file.

/*
        libthreads - a threading API for Wii

Copyright (C) 2011              Alex Marshall <trap15@raidenii.net>

# This code is licensed to you under the terms of the GNU GPL, version 2;
# see file COPYING or http://www.gnu.org/licenses/old-licenses/gpl-2.0.txt
*/

#ifndef __THREADS_H__
#define __THREADS_H__

#define TICK2US(x)      (((x) * 4) / 243)
#define US2TICK(x)      (((x) * 243) / 4)
#define DEC_TIMER       (100)

typedef enum {
        THREAD_EXITED           = -2,
        THREAD_UNRUNNABLE       = -1,
        THREAD_RUNNABLE         = 0,
} thread_state_t;

typedef struct thread_t {
        struct thread_t* next;
        struct thread_t* prev;
        volatile thread_state_t state; /* -2 exited, -1 unrunnable, 0 runnable, >0 stopped */
        /* Stack data */
        void* stack;
        /* Register states */
        u32 gprs[32];
        u64 fprs[32];
        u32 fpscr, lr, cr, xer, ctr, pc, msr;
        /* Scheduling */
        int priority;
        volatile s64 curr_timeslice;
        /* Misc. */
        int pid;
        int exit_code;
} thread_t;

int threads_initialize(void);
int threads_shutdown(void);
int threads_create(int priority, thread_state_t state, void* stack, u32 stacksize, void* pc);
int threads_create_adv(int priority, thread_state_t state, void* stack, void* pc,
        u32 msr, u32 ctr, u32 xer, u32 cr, u32 lr, u32 fpscr,
        u32 gprs[32], u64 fprs[32]);
int threads_get_pid(void);
int threads_destroy(int pid);
void threads_exit(int code);
int threads_state(int pid);
int threads_exitcode(int pid);
void threads_yield(void);
/* BE FUCKING CAREFUL WITH THESE, YOU FUCKTARD */
int threads_freeze(void);
void threads_unfreeze(int frz);

#endif