*** /dev/null Sat Nov 23 01:11:38 2024
--- - Sat Nov 23 01:11:41 2024
***************
*** 0 ****
--- 1,555 ----
+ /*
+ ** GNU Pth - The GNU Portable Threads
+ ** Copyright (c) 1999-2000 Ralf S. Engelschall <rse@engelschall.com>
+ **
+ ** This file is part of GNU Pth, a non-preemptive thread scheduling
+ ** library which can be found at http://www.gnu.org/software/pth/.
+ **
+ ** This library is free software; you can redistribute it and/or
+ ** modify it under the terms of the GNU Lesser General Public
+ ** License as published by the Free Software Foundation; either
+ ** version 2.1 of the License, or (at your option) any later version.
+ **
+ ** This library is distributed in the hope that it will be useful,
+ ** but WITHOUT ANY WARRANTY; without even the implied warranty of
+ ** MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ ** Lesser General Public License for more details.
+ **
+ ** You should have received a copy of the GNU Lesser General Public
+ ** License along with this library; if not, write to the Free Software
+ ** Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307
+ ** USA, or contact Ralf S. Engelschall <rse@engelschall.com>.
+ **
+ ** pthread.h: POSIX Thread ("Pthread") API for Pth
+ */
+ /* ``Only those who attempt the absurd
+ can achieve the impossible.''
+ -- Unknown */
+ #ifndef _PTH_PTHREAD_H_
+ #define _PTH_PTHREAD_H_
+
+ /*
+ **
+ ** BOOTSTRAPPING
+ **
+ */
+
+ /*
+ * Prevent system includes from implicitly including
+ * possibly existing vendor Pthread headers
+ */
+ #define PTHREAD
+ #define PTHREAD_H
+ #define _PTHREAD_H
+ #define _PTHREAD_H_
+ #define PTHREAD_INCLUDED
+ #define _PTHREAD_INCLUDED
+ #define SYS_PTHREAD_H
+ #define _SYS_PTHREAD_H
+ #define _SYS_PTHREAD_H_
+ #define SYS_PTHREAD_INCLUDED
+ #define _SYS_PTHREAD_INCLUDED
+ #define BITS_PTHREADTYPES_H
+ #define _BITS_PTHREADTYPES_H
+ #define _BITS_PTHREADTYPES_H_
+ #define _BITS_SIGTHREAD_H
+
+ /*
+ * Special adjustments
+ */
+ #if defined(__hpux)
+ #define _PTHREADS_DRAFT4
+ #endif
+
+ /*
+ * Protect namespace, because possibly existing vendor Pthread stuff
+ * would certainly conflict with our defintions of pthread*_t.
+ */
+ #define pthread_t __vendor_pthread_t
+ #define pthread_attr_t __vendor_pthread_attr_t
+ #define pthread_key_t __vendor_pthread_key_t
+ #define pthread_once_t __vendor_pthread_once_t
+ #define pthread_mutex_t __vendor_pthread_mutex_t
+ #define pthread_mutexattr_t __vendor_pthread_mutexattr_t
+ #define pthread_cond_t __vendor_pthread_cond_t
+ #define pthread_condattr_t __vendor_pthread_condattr_t
+ #define pthread_rwlock_t __vendor_pthread_rwlock_t
+ #define pthread_rwlockattr_t __vendor_pthread_rwlockattr_t
+ #define sched_param __vendor_sched_param
+
+ /*
+ * Allow structs containing pthread*_t in vendor headers
+ * to have some type definitions
+ */
+ #if 0
+ typedef int __vendor_pthread_t;
+ typedef int __vendor_pthread_attr_t;
+ typedef int __vendor_pthread_key_t;
+ typedef int __vendor_pthread_once_t;
+ typedef int __vendor_pthread_mutex_t;
+ typedef int __vendor_pthread_mutexattr_t;
+ typedef int __vendor_pthread_cond_t;
+ typedef int __vendor_pthread_condattr_t;
+ typedef int __vendor_pthread_rwlock_t;
+ typedef int __vendor_pthread_rwlockattr_t;
+ typedef int __vendor_sched_param;
+ #endif
+
+ /*
+ * Include essential vendor headers
+ */
+ #include <sys/types.h> /* for ssize_t */
+ #include <sys/time.h> /* for struct timeval */
+ #include <sys/socket.h> /* for sockaddr */
+ #include <sys/signal.h> /* for sigset_t */
+ #include <time.h> /* for struct timespec */
+ #include <unistd.h> /* for off_t */
+ @EXTRA_INCLUDE_SYS_SELECT_H@
+
+ /*
+ * Unprotect namespace, so we can define our own variants now
+ */
+ #undef pthread_t
+ #undef pthread_attr_t
+ #undef pthread_key_t
+ #undef pthread_once_t
+ #undef pthread_mutex_t
+ #undef pthread_mutexattr_t
+ #undef pthread_cond_t
+ #undef pthread_condattr_t
+ #undef pthread_rwlock_t
+ #undef pthread_rwlockattr_t
+ #undef sched_param
+
+ /*
+ * Cleanup more Pthread namespace from vendor values
+ */
+ #undef _POSIX_THREADS
+ #undef _POSIX_THREAD_ATTR_STACKADDR
+ #undef _POSIX_THREAD_ATTR_STACKSIZE
+ #undef _POSIX_THREAD_PRIORITY_SCHEDULING
+ #undef _POSIX_THREAD_PRIO_INHERIT
+ #undef _POSIX_THREAD_PRIO_PROTECT
+ #undef _POSIX_THREAD_PROCESS_SHARED
+ #undef _POSIX_THREAD_SAFE_FUNCTIONS
+ #undef PTHREAD_DESTRUCTOR_ITERATIONS
+ #undef PTHREAD_KEYS_MAX
+ #undef PTHREAD_STACK_MIN
+ #undef PTHREAD_THREADS_MAX
+ #undef PTHREAD_CREATE_DETACHED
+ #undef PTHREAD_CREATE_JOINABLE
+ #undef PTHREAD_SCOPE_SYSTEM
+ #undef PTHREAD_SCOPE_PROCESS
+ #undef PTHREAD_INHERIT_SCHED
+ #undef PTHREAD_EXPLICIT_SCHED
+ #undef PTHREAD_CANCEL_ENABLE
+ #undef PTHREAD_CANCEL_DISABLE
+ #undef PTHREAD_CANCEL_ASYNCHRONOUS
+ #undef PTHREAD_CANCEL_DEFERRED
+ #undef PTHREAD_CANCELED
+ #undef PTHREAD_PROCESS_PRIVATE
+ #undef PTHREAD_PROCESS_SHARED
+ #undef PTHREAD_ONCE_INIT
+ #undef PTHREAD_MUTEX_DEFAULT
+ #undef PTHREAD_MUTEX_RECURSIVE
+ #undef PTHREAD_MUTEX_NORMAL
+ #undef PTHREAD_MUTEX_ERRORCHECK
+ #undef PTHREAD_MUTEX_INITIALIZER
+ #undef PTHREAD_COND_INITIALIZER
+ #undef PTHREAD_RWLOCK_INITIALIZER
+
+ /*
+ * Cleanup special adjustments
+ */
+ #if defined(__hpux)
+ #undef _PTHREADS_DRAFT4
+ #endif
+
+ /*
+ **
+ ** API DEFINITION
+ **
+ */
+
+ #ifdef __cplusplus
+ extern "C" {
+ #endif
+
+ /*
+ * Fallbacks for essential typedefs
+ */
+ @FALLBACK_PID_T@
+ @FALLBACK_SIZE_T@
+ @FALLBACK_SSIZE_T@
+ @FALLBACK_SOCKLEN_T@
+ @FALLBACK_OFF_T@
+ @FALLBACK_NFDS_T@
+
+ /*
+ * Extra structure definitions
+ */
+ struct timeval;
+ struct timespec;
+
+ /*
+ * GNU Pth indentification
+ */
+ #define _POSIX_THREAD_IS_GNU_PTH @PTH_VERSION_HEX@
+
+ /*
+ * Compile time symbolic feature macros for portability
+ * specification to applications using pthreads
+ */
+ #define _POSIX_THREADS
+ #define _POSIX_THREAD_ATTR_STACKADDR
+ #define _POSIX_THREAD_ATTR_STACKSIZE
+ #undef _POSIX_THREAD_PRIORITY_SCHEDULING
+ #undef _POSIX_THREAD_PRIO_INHERIT
+ #undef _POSIX_THREAD_PRIO_PROTECT
+ #undef _POSIX_THREAD_PROCESS_SHARED
+ #undef _POSIX_THREAD_SAFE_FUNCTIONS
+
+ /*
+ * System call mapping support type
+ * (soft variant can be overridden)
+ */
+ #define _POSIX_THREAD_SYSCALL_HARD @PTH_SYSCALL_HARD@
+ #ifndef _POSIX_THREAD_SYSCALL_SOFT
+ #define _POSIX_THREAD_SYSCALL_SOFT @PTH_SYSCALL_SOFT@
+ #endif
+
+ /*
+ * Run-time invariant values
+ */
+ #define PTHREAD_DESTRUCTOR_ITERATIONS 4
+ #define PTHREAD_KEYS_MAX 256
+ #define PTHREAD_STACK_MIN 8192
+ #define PTHREAD_THREADS_MAX 10000 /* actually now restriction */
+
+ /*
+ * Flags for threads and thread attributes.
+ */
+ #define PTHREAD_CREATE_DETACHED 0x01
+ #define PTHREAD_CREATE_JOINABLE 0x02
+ #define PTHREAD_SCOPE_SYSTEM 0x03
+ #define PTHREAD_SCOPE_PROCESS 0x04
+ #define PTHREAD_INHERIT_SCHED 0x05
+ #define PTHREAD_EXPLICIT_SCHED 0x06
+
+ /*
+ * Values for cancellation
+ */
+ #define PTHREAD_CANCEL_ENABLE 0x01
+ #define PTHREAD_CANCEL_DISABLE 0x02
+ #define PTHREAD_CANCEL_ASYNCHRONOUS 0x01
+ #define PTHREAD_CANCEL_DEFERRED 0x02
+ #define PTHREAD_CANCELED ((void *)-1)
+
+ /*
+ * Flags for read/write lock attributes
+ */
+ #define PTHREAD_PROCESS_PRIVATE 0x00
+ #define PTHREAD_PROCESS_SHARED 0x01
+
+ /*
+ * Forward structure definitions.
+ * These are mostly opaque to the application.
+ */
+ struct pthread_st;
+ struct pthread_attr_st;
+ struct pthread_cond_st;
+ struct pthread_mutex_st;
+ struct pthread_rwlock_st;
+ struct sched_param;
+
+ /*
+ * Primitive system data type definitions required by P1003.1c
+ */
+ typedef struct pthread_st *pthread_t;
+ typedef struct pthread_attr_st *pthread_attr_t;
+ typedef int pthread_key_t;
+ typedef int pthread_once_t;
+ typedef int pthread_mutexattr_t;
+ typedef struct pthread_mutex_st *pthread_mutex_t;
+ typedef int pthread_condattr_t;
+ typedef struct pthread_cond_st *pthread_cond_t;
+ typedef int pthread_rwlockattr_t;
+ typedef struct pthread_rwlock_st *pthread_rwlock_t;
+
+ /*
+ * Once support.
+ */
+ #define PTHREAD_ONCE_INIT 0
+
+ /*
+ * Mutex static initialization values.
+ */
+ enum pthread_mutextype {
+ PTHREAD_MUTEX_DEFAULT = 1,
+ PTHREAD_MUTEX_RECURSIVE,
+ PTHREAD_MUTEX_NORMAL,
+ PTHREAD_MUTEX_ERRORCHECK
+ };
+
+ /*
+ * Mutex/CondVar/RWLock static initialization values.
+ */
+ #define PTHREAD_MUTEX_INITIALIZER (pthread_mutex_t)(NULL)
+ #define PTHREAD_COND_INITIALIZER (pthread_cond_t)(NULL)
+ #define PTHREAD_RWLOCK_INITIALIZER (pthread_rwlock_t)(NULL)
+
+ /*
+ * IEEE (``POSIX'') Std 1003.1 Second Edition 1996-07-12
+ */
+
+ /* thread attribute routines */
+ extern int pthread_attr_init(pthread_attr_t *);
+ extern int pthread_attr_destroy(pthread_attr_t *);
+ extern int pthread_attr_setinheritsched(pthread_attr_t *, int);
+ extern int pthread_attr_getinheritsched(pthread_attr_t *, int *);
+ extern int pthread_attr_setschedparam(pthread_attr_t *, struct sched_param *);
+ extern int pthread_attr_getschedparam(pthread_attr_t *, struct sched_param *);
+ extern int pthread_attr_setschedpolicy(pthread_attr_t *, int);
+ extern int pthread_attr_getschedpolicy(pthread_attr_t *, int *);
+ extern int pthread_attr_setscope(pthread_attr_t *, int);
+ extern int pthread_attr_getscope(pthread_attr_t *, int *);
+ extern int pthread_attr_setstacksize(pthread_attr_t *, size_t);
+ extern int pthread_attr_getstacksize(pthread_attr_t *, size_t *);
+ extern int pthread_attr_setstackaddr(pthread_attr_t *, void *);
+ extern int pthread_attr_getstackaddr(pthread_attr_t *, void **);
+ extern int pthread_attr_setdetachstate(pthread_attr_t *, int);
+ extern int pthread_attr_getdetachstate(pthread_attr_t *, int *);
+ extern int pthread_attr_setname_np(pthread_attr_t *, char *);
+ extern int pthread_attr_getname_np(pthread_attr_t *, char **);
+ extern int pthread_attr_setprio_np(pthread_attr_t *, int);
+ extern int pthread_attr_getprio_np(pthread_attr_t *, int *);
+
+ /* thread routines */
+ extern int pthread_create(pthread_t *, const pthread_attr_t *, void *(*)(void *), void *);
+ extern int __pthread_detach(pthread_t);
+ #define pthread_detach(t) __pthread_detach(t)
+ extern pthread_t pthread_self(void);
+ extern int pthread_equal(pthread_t, pthread_t);
+ extern int pthread_yield_np(void);
+ extern void pthread_exit(void *);
+ extern int pthread_join(pthread_t, void **);
+ extern int pthread_once(pthread_once_t *, void (*)(void));
+ extern int pthread_sigmask(int, const sigset_t *, sigset_t *);
+ extern int pthread_kill(pthread_t, int);
+
+ /* context routines */
+ extern int pthread_key_create(pthread_key_t *, void (*)(void *));
+ extern int pthread_key_delete(pthread_key_t);
+ extern int pthread_setspecific(pthread_key_t, const void *);
+ extern void *pthread_getspecific(pthread_key_t);
+
+ /* cancel routines */
+ extern int pthread_cancel(pthread_t);
+ extern void pthread_testcancel(void);
+ extern int pthread_setcancelstate(int, int *);
+ extern int pthread_setcanceltype(int, int *);
+
+ /* scheduler routines */
+ extern int pthread_setschedparam(pthread_t, int, const struct sched_param *);
+ extern int pthread_getschedparam(pthread_t, int *, struct sched_param *);
+
+ /* cleanup routines */
+ extern void pthread_cleanup_push(void (*)(void *), void *);
+ extern void pthread_cleanup_pop(int);
+ extern int pthread_atfork(void (*)(void), void (*)(void), void (*)(void));
+
+ /* mutex attribute routines */
+ extern int pthread_mutexattr_init(pthread_mutexattr_t *);
+ extern int pthread_mutexattr_destroy(pthread_mutexattr_t *);
+ extern int pthread_mutexattr_setprioceiling(pthread_mutexattr_t *, int);
+ extern int pthread_mutexattr_getprioceiling(pthread_mutexattr_t *, int *);
+ extern int pthread_mutexattr_setprotocol(pthread_mutexattr_t *, int);
+ extern int pthread_mutexattr_getprotocol(pthread_mutexattr_t *, int *);
+ extern int pthread_mutexattr_setpshared(pthread_mutexattr_t *, int);
+ extern int pthread_mutexattr_getpshared(pthread_mutexattr_t *, int *);
+ extern int pthread_mutexattr_settype(pthread_mutexattr_t *, int);
+ extern int pthread_mutexattr_gettype(pthread_mutexattr_t *, int *);
+
+ /* mutex routines */
+ extern int pthread_mutex_init(pthread_mutex_t *, const pthread_mutexattr_t *);
+ extern int pthread_mutex_destroy(pthread_mutex_t *);
+ extern int pthread_mutex_setprioceiling(pthread_mutex_t *, int, int *);
+ extern int pthread_mutex_getprioceiling(pthread_mutex_t *, int *);
+ extern int pthread_mutex_lock(pthread_mutex_t *);
+ extern int pthread_mutex_trylock(pthread_mutex_t *);
+ extern int pthread_mutex_unlock(pthread_mutex_t *);
+
+ /* rwlock attribute routines */
+ extern int pthread_rwlockattr_init(pthread_rwlockattr_t *);
+ extern int pthread_rwlockattr_destroy(pthread_rwlockattr_t *);
+ extern int pthread_rwlockattr_setpshared(pthread_rwlockattr_t *, int);
+ extern int pthread_rwlockattr_getpshared(const pthread_rwlockattr_t *, int *);
+
+ /* rwlock routines */
+ extern int pthread_rwlock_init(pthread_rwlock_t *, const pthread_rwlockattr_t *);
+ extern int pthread_rwlock_destroy(pthread_rwlock_t *);
+ extern int pthread_rwlock_rdlock(pthread_rwlock_t *);
+ extern int pthread_rwlock_tryrdlock(pthread_rwlock_t *);
+ extern int pthread_rwlock_wrlock(pthread_rwlock_t *);
+ extern int pthread_rwlock_trywrlock(pthread_rwlock_t *);
+ extern int pthread_rwlock_unlock(pthread_rwlock_t *);
+
+ /* condition attribute routines */
+ extern int pthread_condattr_init(pthread_condattr_t *);
+ extern int pthread_condattr_destroy(pthread_condattr_t *);
+ extern int pthread_condattr_setpshared(pthread_condattr_t *, int);
+ extern int pthread_condattr_getpshared(pthread_condattr_t *, int *);
+
+ /* condition routines */
+ extern int pthread_cond_init(pthread_cond_t *, const pthread_condattr_t *);
+ extern int pthread_cond_destroy(pthread_cond_t *);
+ extern int pthread_cond_broadcast(pthread_cond_t *);
+ extern int pthread_cond_signal(pthread_cond_t *);
+ extern int pthread_cond_wait(pthread_cond_t *, pthread_mutex_t *);
+ extern int pthread_cond_timedwait(pthread_cond_t *, pthread_mutex_t *, const struct timespec *);
+
+ /*
+ * Extensions created by POSIX 1003.1j
+ */
+ extern int pthread_abort(pthread_t);
+
+ /*
+ * Optionally fake poll(2) data structure and options
+ */
+ #if !(@PTH_FAKE_POLL@)
+ /* use vendor poll(2) environment */
+ #include <poll.h>
+ #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
+
+ /*
+ * Optionally fake readv(2)/writev(2) data structure and options
+ */
+ #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
+
+ /*
+ * Replacement Functions (threading aware)
+ */
+
+ extern pid_t __pthread_fork(void);
+ extern unsigned int __pthread_sleep(unsigned int);
+ extern int __pthread_sigwait(const sigset_t *, int *);
+ extern pid_t __pthread_waitpid(pid_t, int *, int);
+ extern int __pthread_connect(int, struct sockaddr *, socklen_t);
+ extern int __pthread_accept(int, struct sockaddr *, socklen_t *);
+ extern int __pthread_select(int, fd_set *, fd_set *, fd_set *, struct timeval *);
+ extern int __pthread_poll(struct pollfd *, nfds_t, int);
+ extern ssize_t __pthread_read(int, void *, size_t);
+ extern ssize_t __pthread_write(int, const void *, size_t);
+ extern ssize_t __pthread_readv(int, const struct iovec *, int);
+ extern ssize_t __pthread_writev(int, const struct iovec *, int);
+ extern ssize_t __pthread_pread(int, void *, size_t, off_t);
+ extern ssize_t __pthread_pwrite(int, const void *, size_t, off_t);
+
+ #if _POSIX_THREAD_SYSCALL_SOFT && !defined(_PTHREAD_PRIVATE)
+ #define fork __pthread_fork
+ #define sleep __pthread_sleep
+ #define sigwait __pthread_sigwait
+ #define waitpid __pthread_waitpid
+ #define connect __pthread_connect
+ #define accept __pthread_accept
+ #define select __pthread_select
+ #define poll __pthread_poll
+ #define read __pthread_read
+ #define write __pthread_write
+ #define readv __pthread_readv
+ #define writev __pthread_writev
+ #define pread __pthread_pread
+ #define pwrite __pthread_pwrite
+ #endif
+
+ /*
+ * More "special" POSIX stuff
+ */
+
+ #define sched_yield pthread_yield_np
+
+ /*
+ * Backward Compatibility Stuff for Pthread draft 4 (DCE threads)
+ */
+
+ #ifdef _POSIX_BACKCOMPAT
+
+ #define _POSIX_THREADS_PER_THREAD_SIGNALS 1
+
+ #define pthread_attr_default NULL
+ #define pthread_condattr_default NULL
+ #define pthread_mutexattr_default NULL
+ #define pthread_once_init PTHREAD_ONCE_INIT
+
+ #define pthread_detach(thread) __pthread_detach(*(thread))
+
+ #define pthread_attr_init pthread_attr_create
+ #define pthread_attr_delete pthread_attr_destroy
+ #define pthread_keycreate pthread_key_create
+ #define pthread_yield pthread_yield_np
+
+ #define pthread_attr_setprio pthread_attr_setprio_np
+ #define pthread_attr_getprio pthread_attr_getprio_np
+
+ #define CANCEL_ON 1
+ #define CANCEL_OFF 2
+ #define pthread_setcancel(what) \
+ pthread_setcancelstate((what) == CANCEL_ON ? \
+ PTHREAD_CANCEL_ENABLE : \
+ PTHREAD_CANCEL_DISABLE)
+ #define pthread_setasynccancel(what) \
+ pthread_setcanceltype((what) == CANCEL_ON ? \
+ PTHREAD_CANCEL_ASYNCHRONOUS : \
+ PTHREAD_CANCEL_DEFERRED)
+
+ #define pthread_setscheduler #error
+ #define pthread_setprio #error
+ #define pthread_attr_setsched #error
+ #define pthread_attr_getsched #error
+
+ #endif /* _POSIX_BACKCOMPAT */
+
+ #ifdef __cplusplus
+ }
+ #endif
+
+ #endif /* _PTH_PTHREAD_H_ */
+
|
