mirror of
https://github.com/0intro/libtask
synced 2024-11-21 21:31:30 +03:00
183 lines
3.0 KiB
C
183 lines
3.0 KiB
C
/* Copyright (c) 2005 Russ Cox, MIT; see COPYRIGHT */
|
|
|
|
#ifndef _TASK_H_
|
|
#define _TASK_H_ 1
|
|
|
|
#ifdef __cplusplus
|
|
extern "C" {
|
|
#endif
|
|
|
|
#include <stdarg.h>
|
|
#include <inttypes.h>
|
|
|
|
/*
|
|
* basic procs and threads
|
|
*/
|
|
|
|
typedef struct Task Task;
|
|
typedef struct Tasklist Tasklist;
|
|
|
|
int anyready(void);
|
|
int taskcreate(void (*f)(void *arg), void *arg, unsigned int stacksize);
|
|
void taskexit(int);
|
|
void taskexitall(int);
|
|
void taskmain(int argc, char *argv[]);
|
|
int taskyield(void);
|
|
void** taskdata(void);
|
|
void needstack(int);
|
|
void taskname(char*, ...);
|
|
void taskstate(char*, ...);
|
|
char* taskgetname(void);
|
|
char* taskgetstate(void);
|
|
void tasksystem(void);
|
|
unsigned int taskdelay(unsigned int);
|
|
unsigned int taskid(void);
|
|
|
|
struct Tasklist /* used internally */
|
|
{
|
|
Task *head;
|
|
Task *tail;
|
|
};
|
|
|
|
/*
|
|
* queuing locks
|
|
*/
|
|
typedef struct QLock QLock;
|
|
struct QLock
|
|
{
|
|
Task *owner;
|
|
Tasklist waiting;
|
|
};
|
|
|
|
void qlock(QLock*);
|
|
int canqlock(QLock*);
|
|
void qunlock(QLock*);
|
|
|
|
/*
|
|
* reader-writer locks
|
|
*/
|
|
typedef struct RWLock RWLock;
|
|
struct RWLock
|
|
{
|
|
int readers;
|
|
Task *writer;
|
|
Tasklist rwaiting;
|
|
Tasklist wwaiting;
|
|
};
|
|
|
|
void rlock(RWLock*);
|
|
int canrlock(RWLock*);
|
|
void runlock(RWLock*);
|
|
|
|
void wlock(RWLock*);
|
|
int canwlock(RWLock*);
|
|
void wunlock(RWLock*);
|
|
|
|
/*
|
|
* sleep and wakeup (condition variables)
|
|
*/
|
|
typedef struct Rendez Rendez;
|
|
|
|
struct Rendez
|
|
{
|
|
QLock *l;
|
|
Tasklist waiting;
|
|
};
|
|
|
|
void tasksleep(Rendez*);
|
|
int taskwakeup(Rendez*);
|
|
int taskwakeupall(Rendez*);
|
|
|
|
/*
|
|
* channel communication
|
|
*/
|
|
typedef struct Alt Alt;
|
|
typedef struct Altarray Altarray;
|
|
typedef struct Channel Channel;
|
|
|
|
enum
|
|
{
|
|
CHANEND,
|
|
CHANSND,
|
|
CHANRCV,
|
|
CHANNOP,
|
|
CHANNOBLK,
|
|
};
|
|
|
|
struct Alt
|
|
{
|
|
Channel *c;
|
|
void *v;
|
|
unsigned int op;
|
|
Task *task;
|
|
Alt *xalt;
|
|
};
|
|
|
|
struct Altarray
|
|
{
|
|
Alt **a;
|
|
unsigned int n;
|
|
unsigned int m;
|
|
};
|
|
|
|
struct Channel
|
|
{
|
|
unsigned int bufsize;
|
|
unsigned int elemsize;
|
|
unsigned char *buf;
|
|
unsigned int nbuf;
|
|
unsigned int off;
|
|
Altarray asend;
|
|
Altarray arecv;
|
|
char *name;
|
|
};
|
|
|
|
int chanalt(Alt *alts);
|
|
Channel* chancreate(int elemsize, int elemcnt);
|
|
void chanfree(Channel *c);
|
|
int chaninit(Channel *c, int elemsize, int elemcnt);
|
|
int channbrecv(Channel *c, void *v);
|
|
void* channbrecvp(Channel *c);
|
|
unsigned long channbrecvul(Channel *c);
|
|
int channbsend(Channel *c, void *v);
|
|
int channbsendp(Channel *c, void *v);
|
|
int channbsendul(Channel *c, unsigned long v);
|
|
int chanrecv(Channel *c, void *v);
|
|
void* chanrecvp(Channel *c);
|
|
unsigned long chanrecvul(Channel *c);
|
|
int chansend(Channel *c, void *v);
|
|
int chansendp(Channel *c, void *v);
|
|
int chansendul(Channel *c, unsigned long v);
|
|
|
|
/*
|
|
* Threaded I/O.
|
|
*/
|
|
int fdread(int, void*, int);
|
|
int fdread1(int, void*, int); /* always uses fdwait */
|
|
int fdwrite(int, void*, int);
|
|
void fdwait(int, int);
|
|
int fdnoblock(int);
|
|
|
|
void fdtask(void*);
|
|
|
|
/*
|
|
* Network dialing - sets non-blocking automatically
|
|
*/
|
|
enum
|
|
{
|
|
UDP = 0,
|
|
TCP = 1,
|
|
};
|
|
|
|
int netannounce(int, char*, int);
|
|
int netaccept(int, char*, int*);
|
|
int netdial(int, char*, int);
|
|
int netlookup(char*, uint32_t*); /* blocks entire program! */
|
|
int netdial(int, char*, int);
|
|
|
|
#ifdef __cplusplus
|
|
}
|
|
#endif
|
|
#endif
|
|
|