pth.h.in

Linux下的中文输入法

    /* the read-write lock structure */
typedef struct pth_rwlock_st pth_rwlock_t;
struct pth_rwlock_st { /* not hidden to avoid destructor */
    int            rw_state;
    unsigned int   rw_mode;
    unsigned long  rw_readers;
    pth_mutex_t    rw_mutex_rd;
    pth_mutex_t    rw_mutex_rw;
};

    /* the condition variable structure */
typedef struct pth_cond_st pth_cond_t;
struct pth_cond_st { /* not hidden to avoid destructor */
    unsigned long cn_state;
    unsigned int  cn_waiters;
};

    /* the barrier variable structure */
typedef struct pth_barrier_st pth_barrier_t;
struct pth_barrier_st { /* not hidden to avoid destructor */
    unsigned long br_state;
    int           br_threshold;
    int           br_count;
    int           br_cycle;
    pth_cond_t    br_cond;
    pth_mutex_t   br_mutex;
};

    /* the user-space context structure */
typedef struct pth_uctx_st *pth_uctx_t;
struct pth_uctx_st;

    /* filedescriptor blocking modes */
enum {
    PTH_FDMODE_ERROR = -1,
    PTH_FDMODE_POLL  =  0,
    PTH_FDMODE_BLOCK,
    PTH_FDMODE_NONBLOCK
};

    /* optionally fake poll(2) data structure and options */
#ifndef _PTHREAD_PRIVATE
#define PTH_FAKE_POLL @PTH_FAKE_POLL@
#if !(PTH_FAKE_POLL)
/* use vendor poll(2) environment */
#ifndef _XOPEN_SOURCE
#define _XOPEN_SOURCE
#define _XOPEN_SOURCE_set
#endif
#include <poll.h>
#ifdef _XOPEN_SOURCE_set
#undef _XOPEN_SOURCE_set
#undef _XOPEN_SOURCE
#endif
#ifndef POLLRDNORM
#define POLLRDNORM POLLIN
#endif
#ifndef POLLRDBAND
#define POLLRDBAND POLLIN
#endif
#ifndef POLLWRNORM
#define POLLWRNORM POLLOUT
#endif
#ifndef POLLWRBAND
#define POLLWRBAND POLLOUT
#endif
#ifndef INFTIM
#define INFTIM (-1)
#endif
#else
/* fake a poll(2) environment */
#define POLLIN      0x0001      /* any readable data available   */
#define POLLPRI     0x0002      /* OOB/Urgent readable data      */
#define POLLOUT     0x0004      /* file descriptor is writeable  */
#define POLLERR     0x0008      /* some poll error occurred      */
#define POLLHUP     0x0010      /* file descriptor was "hung up" */
#define POLLNVAL    0x0020      /* requested events "invalid"    */
#define POLLRDNORM  POLLIN
#define POLLRDBAND  POLLIN
#define POLLWRNORM  POLLOUT
#define POLLWRBAND  POLLOUT
#ifndef INFTIM
#define INFTIM      (-1)        /* poll infinite */
#endif
struct pollfd {
    int fd;                     /* which file descriptor to poll */
    short events;               /* events we are interested in   */
    short revents;              /* events found on return        */
};
#endif
#endif /* !_PTHREAD_PRIVATE */

    /* optionally fake readv(2)/writev(2) data structure and options */
#ifndef _PTHREAD_PRIVATE
#define PTH_FAKE_RWV @PTH_FAKE_RWV@
#if !(PTH_FAKE_RWV)
/* use vendor readv(2)/writev(2) environment */
#include <sys/uio.h>
#ifndef UIO_MAXIOV
#define UIO_MAXIOV 1024
#endif
#else
/* fake a readv(2)/writev(2) environment */
struct iovec {
    void  *iov_base;  /* memory base address */
    size_t iov_len;   /* memory chunk length */
};
#ifndef UIO_MAXIOV
#define UIO_MAXIOV 1024
#endif
#endif
#endif /* !_PTHREAD_PRIVATE */

    /* extension support */
#define PTH_EXT_SFIO @PTH_EXT_SFIO@

    /* Sfio extension support */
#if @PTH_EXT_SFIO@
#include <sfio.h>
#else
typedef void *Sfdisc_t;
#endif

    /* global functions */
extern int            pth_init(void);
extern int            pth_kill(void);
extern long           pth_ctrl(unsigned long, ...);
extern long           pth_version(void);

    /* thread attribute functions */
extern pth_attr_t     pth_attr_of(pth_t);
extern pth_attr_t     pth_attr_new(void);
extern int            pth_attr_init(pth_attr_t);
extern int            pth_attr_set(pth_attr_t, int, ...);
extern int            pth_attr_get(pth_attr_t, int, ...);
extern int            pth_attr_destroy(pth_attr_t);

    /* thread functions */
extern pth_t          pth_spawn(pth_attr_t, void *(*)(void *), void *);
extern int            pth_once(pth_once_t *, void (*)(void *), void *);
extern pth_t          pth_self(void);
extern int            pth_suspend(pth_t);
extern int            pth_resume(pth_t);
extern int            pth_yield(pth_t);
extern int            pth_nap(pth_time_t);
extern int            pth_wait(pth_event_t);
extern int            pth_cancel(pth_t);
extern int            pth_abort(pth_t);
extern int            pth_raise(pth_t, int);
extern int            pth_join(pth_t, void **);
extern void           pth_exit(void *);

    /* utility functions */
extern int            pth_fdmode(int, int);
extern pth_time_t     pth_time(long, long);
extern pth_time_t     pth_timeout(long, long);

    /* cancellation functions */
extern void           pth_cancel_state(int, int *);
extern void           pth_cancel_point(void);

    /* event functions */
extern pth_event_t    pth_event(unsigned long, ...);
extern unsigned long  pth_event_typeof(pth_event_t);
extern int            pth_event_extract(pth_event_t ev, ...);
extern pth_event_t    pth_event_concat(pth_event_t, ...);
extern pth_event_t    pth_event_isolate(pth_event_t);
extern pth_event_t    pth_event_walk(pth_event_t, unsigned int);
extern pth_status_t   pth_event_status(pth_event_t);
extern int            pth_event_free(pth_event_t, int);

    /* key-based storage functions */
extern int            pth_key_create(pth_key_t *, void (*)(void *));
extern int            pth_key_delete(pth_key_t);
extern int            pth_key_setdata(pth_key_t, const void *);
extern void          *pth_key_getdata(pth_key_t);

    /* message port functions */
extern pth_msgport_t  pth_msgport_create(const char *);
extern void           pth_msgport_destroy(pth_msgport_t);
extern pth_msgport_t  pth_msgport_find(const char *);
extern int            pth_msgport_pending(pth_msgport_t);
extern int            pth_msgport_put(pth_msgport_t, pth_message_t *);
extern pth_message_t *pth_msgport_get(pth_msgport_t);
extern int            pth_msgport_reply(pth_message_t *);

    /* cleanup handler functions */
extern int            pth_cleanup_push(void (*)(void *), void *);
extern int            pth_cleanup_pop(int);

    /* process forking functions */
extern int            pth_atfork_push(void (*)(void *), void (*)(void *), void (*)(void *), void *);
extern int            pth_atfork_pop(void);
extern pid_t          pth_fork(void);

    /* synchronization functions */
extern int            pth_mutex_init(pth_mutex_t *);
extern int            pth_mutex_acquire(pth_mutex_t *, int, pth_event_t);
extern int            pth_mutex_release(pth_mutex_t *);
extern int            pth_rwlock_init(pth_rwlock_t *);
extern int            pth_rwlock_acquire(pth_rwlock_t *, int, int, pth_event_t);
extern int            pth_rwlock_release(pth_rwlock_t *);
extern int            pth_cond_init(pth_cond_t *);
extern int            pth_cond_await(pth_cond_t *, pth_mutex_t *, pth_event_t);
extern int            pth_cond_notify(pth_cond_t *, int);
extern int            pth_barrier_init(pth_barrier_t *, int);
extern int            pth_barrier_reach(pth_barrier_t *);

    /* user-space context functions */
extern int            pth_uctx_create(pth_uctx_t *);
extern int            pth_uctx_make(pth_uctx_t, char *, size_t, const sigset_t *, void (*)(void *), void *, pth_uctx_t);
extern int            pth_uctx_switch(pth_uctx_t, pth_uctx_t);
extern int            pth_uctx_destroy(pth_uctx_t);

    /* extension functions */
extern Sfdisc_t      *pth_sfiodisc(void);

    /* generalized variants of replacement functions */
extern int            pth_sigwait_ev(const sigset_t *, int *, pth_event_t);
extern int            pth_connect_ev(int, const struct sockaddr *, socklen_t, pth_event_t);
extern int            pth_accept_ev(int, struct sockaddr *, socklen_t *, pth_event_t);
extern int            pth_select_ev(int, fd_set *, fd_set *, fd_set *, struct timeval *, pth_event_t);
extern int            pth_poll_ev(struct pollfd *, nfds_t, int, pth_event_t);
extern ssize_t        pth_read_ev(int, void *, size_t, pth_event_t);
extern ssize_t        pth_write_ev(int, const void *, size_t, pth_event_t);
extern ssize_t        pth_readv_ev(int, const struct iovec *, int, pth_event_t);
extern ssize_t        pth_writev_ev(int, const struct iovec *, int, pth_event_t);
extern ssize_t        pth_recv_ev(int, void *, size_t, int, pth_event_t);
extern ssize_t        pth_send_ev(int, const void *, size_t, int, pth_event_t);
extern ssize_t        pth_recvfrom_ev(int, void *, size_t, int, struct sockaddr *, socklen_t *, pth_event_t);
extern ssize_t        pth_sendto_ev(int, const void *, size_t, int, const struct sockaddr *, socklen_t, pth_event_t);

    /* standard replacement functions */
extern int            pth_nanosleep(const struct timespec *, struct timespec *);
extern int            pth_usleep(unsigned int);
extern unsigned int   pth_sleep(unsigned int);
extern pid_t          pth_waitpid(pid_t, int *, int);
extern int            pth_system(const char *);
extern int            pth_sigmask(int, const sigset_t *, sigset_t *);
extern int            pth_sigwait(const sigset_t *, int *);
extern int            pth_connect(int, const struct sockaddr *, socklen_t);
extern int            pth_accept(int, struct sockaddr *, socklen_t *);
extern int            pth_select(int, fd_set *, fd_set *, fd_set *, struct timeval *);
extern int            pth_pselect(int, fd_set *, fd_set *, fd_set *, const struct timespec *, const sigset_t *);
extern int            pth_poll(struct pollfd *, nfds_t, int);
extern ssize_t        pth_read(int, void *, size_t);
extern ssize_t        pth_write(int, const void *, size_t);
extern ssize_t        pth_readv(int, const struct iovec *, int);
extern ssize_t        pth_writev(int, const struct iovec *, int);
extern ssize_t        pth_recv(int, void *, size_t, int);
extern ssize_t        pth_send(int, const void *, size_t, int);
extern ssize_t        pth_recvfrom(int, void *, size_t, int, struct sockaddr *, socklen_t *);
extern ssize_t        pth_sendto(int, const void *, size_t, int, const struct sockaddr *, socklen_t);
extern ssize_t        pth_pread(int, void *, size_t, off_t);
extern ssize_t        pth_pwrite(int, const void *, size_t, off_t);

END_DECLARATION

    /* soft system call mapping support */
#if PTH_SYSCALL_SOFT && !defined(_PTH_PRIVATE)
#define fork          pth_fork
#define waitpid       pth_waitpid
#define system        pth_system
#define nanosleep     pth_nanosleep
#define usleep        pth_usleep
#define sleep         pth_sleep
#define sigprocmask   pth_sigmask
#define sigwait       pth_sigwait
#define select        pth_select
#define pselect       pth_pselect
#define poll          pth_poll
#define connect       pth_connect
#define accept        pth_accept
#define read          pth_read
#define write         pth_write
#define readv         pth_readv
#define writev        pth_writev
#define recv          pth_recv
#define send          pth_send
#define recvfrom      pth_recvfrom
#define sendto        pth_sendto
#define pread         pth_pread
#define pwrite        pth_pwrite
#endif

    /* backward compatibility (Pth < 1.5.0) */
#define pth_event_occurred(ev) \
    (   pth_event_status(ev) == PTH_STATUS_OCCURRED \
     || pth_event_status(ev) == PTH_STATUS_FAILED   )

#endif /* _PTH_H_ */