mirror of git://git.gnupg.org/gnupg.git
246 lines
7.7 KiB
C
246 lines
7.7 KiB
C
/* w32-pth.h - GNU Pth emulation for W32 (MS Windows).
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* Copyright (c) 1999-2003 Ralf S. Engelschall <rse@engelschall.com>
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* Copyright (C) 2004, 2006 g10 Code GmbH
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*
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* This file is part of JNLIB.
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*
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* JNLIB is free software; you can redistribute it and/or modify it
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* under the terms of the GNU Lesser General Public License as
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* published by the Free Software Foundation; either version 2.1 of
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* the License, or (at your option) any later version.
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*
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* JNLIB is distributed in the hope that it will be useful, but
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* WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public
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* License along with this program; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
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* 02110-1301, USA.
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*
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* ------------------------------------------------------------------
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* This code is based on Ralf Engelschall's GNU Pth, a non-preemptive
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* thread scheduling library which can be found at
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* http://www.gnu.org/software/pth/.
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*/
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/* Note that this header is usually used through a symlinked pth.h
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file. This is needed so that we don't have a pth.h file here which
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would conflict if a system really has pth available. */
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#ifndef W32_PTH_H
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#define W32_PTH_H
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#include <windows.h> /* We need this for sockaddr et al. FIXME: too
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heavyweight - may be we should factor such
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code out to a second header and adjust all
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user files to include it only if required. */
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#ifndef W32_PTH_HANDLE_INTERNAL
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#define W32_PTH_HANDLE_INTERNAL int
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#endif
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/* Filedescriptor blocking modes. */
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enum
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{
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PTH_FDMODE_ERROR = -1,
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PTH_FDMODE_POLL = 0,
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PTH_FDMODE_BLOCK,
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PTH_FDMODE_NONBLOCK
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};
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/* Mutex values. */
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#define PTH_MUTEX_INITIALIZED (1<<0)
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#define PTH_MUTEX_LOCKED (1<<1)
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/* Note: We can't do static initialization, thus we don't define the
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initializer PTH_MUTEX_INIT. */
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#define PTH_KEY_INIT (1<<0)
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/* Event subject classes. */
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#define PTH_EVENT_FD (1<<1)
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#define PTH_EVENT_SELECT (1<<2)
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#define PTH_EVENT_SIGS (1<<3)
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#define PTH_EVENT_TIME (1<<4)
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#define PTH_EVENT_MSG (1<<5)
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#define PTH_EVENT_MUTEX (1<<6)
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#define PTH_EVENT_COND (1<<7)
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#define PTH_EVENT_TID (1<<8)
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#define PTH_EVENT_FUNC (1<<9)
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/* Event occurrence restrictions. */
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#define PTH_UNTIL_OCCURRED (1<<11)
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#define PTH_UNTIL_FD_READABLE (1<<12)
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#define PTH_UNTIL_FD_WRITEABLE (1<<13)
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#define PTH_UNTIL_FD_EXCEPTION (1<<14)
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#define PTH_UNTIL_TID_NEW (1<<15)
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#define PTH_UNTIL_TID_READY (1<<16)
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#define PTH_UNTIL_TID_WAITING (1<<17)
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#define PTH_UNTIL_TID_DEAD (1<<18)
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/* Event structure handling modes. */
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#define PTH_MODE_REUSE (1<<20)
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#define PTH_MODE_CHAIN (1<<21)
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#define PTH_MODE_STATIC (1<<22)
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/* Attribute commands for pth_attr_get and pth_attr_set(). */
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enum
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{
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PTH_ATTR_PRIO, /* RW [int] Priority of thread. */
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PTH_ATTR_NAME, /* RW [char *] Name of thread. */
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PTH_ATTR_JOINABLE, /* RW [int] Thread detachment type. */
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PTH_ATTR_CANCEL_STATE, /* RW [unsigned int] Thread cancellation state.*/
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PTH_ATTR_STACK_SIZE, /* RW [unsigned int] Stack size. */
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PTH_ATTR_STACK_ADDR, /* RW [char *] Stack lower address. */
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PTH_ATTR_DISPATCHES, /* RO [int] Total number of
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thread dispatches. */
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PTH_ATTR_TIME_SPAWN, /* RO [pth_time_t] Time thread was spawned. */
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PTH_ATTR_TIME_LAST, /* RO [pth_time_t] Time thread was
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last dispatched. */
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PTH_ATTR_TIME_RAN, /* RO [pth_time_t] Time thread was running. */
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PTH_ATTR_START_FUNC, /* RO [void *(*)(void *)] Thread start function.*/
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PTH_ATTR_START_ARG, /* RO [void *] Thread start argument. */
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PTH_ATTR_STATE, /* RO [pth_state_t] Scheduling state. */
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PTH_ATTR_EVENTS, /* RO [pth_event_t] Events the thread
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is waiting for. */
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PTH_ATTR_BOUND /* RO [int] Whether object is
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bound to thread. */
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};
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/* Queries for pth_ctrl(). */
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#define PTH_CTRL_GETAVLOAD (1<<1)
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#define PTH_CTRL_GETPRIO (1<<2)
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#define PTH_CTRL_GETNAME (1<<3)
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#define PTH_CTRL_GETTHREADS_NEW (1<<4)
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#define PTH_CTRL_GETTHREADS_READY (1<<5)
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#define PTH_CTRL_GETTHREADS_RUNNING (1<<6)
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#define PTH_CTRL_GETTHREADS_WAITING (1<<7)
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#define PTH_CTRL_GETTHREADS_SUSPENDED (1<<8)
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#define PTH_CTRL_GETTHREADS_DEAD (1<<9)
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#define PTH_CTRL_DUMPSTATE (1<<10)
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#define PTH_CTRL_GETTHREADS ( PTH_CTRL_GETTHREADS_NEW \
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| PTH_CTRL_GETTHREADS_READY \
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| PTH_CTRL_GETTHREADS_RUNNING \
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| PTH_CTRL_GETTHREADS_WAITING \
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| PTH_CTRL_GETTHREADS_SUSPENDED \
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| PTH_CTRL_GETTHREADS_DEAD )
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/* Event status codes. */
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typedef enum
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{
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PTH_STATUS_PENDING,
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PTH_STATUS_OCCURRED,
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PTH_STATUS_FAILED
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}
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pth_status_t;
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/* Event deallocation types. */
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enum
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{
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PTH_FREE_THIS,
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PTH_FREE_ALL
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};
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/* The Pth thread handle object. */
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typedef void *pth_t;
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/* The Mutex object. */
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typedef W32_PTH_HANDLE_INTERNAL pth_mutex_t;
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/* The Event object. */
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struct pth_event_s;
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typedef struct pth_event_s *pth_event_t;
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/* The Attribute object. */
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struct pth_attr_s;
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typedef struct pth_attr_s *pth_attr_t;
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/* The Key object. */
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typedef int pth_key_t;
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/* The Pth time object. */
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typedef struct timeval pth_time_t;
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/* Function prototypes. */
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int pth_init (void);
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int pth_kill (void);
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long pth_ctrl (unsigned long query, ...);
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int pth_read_ev (int fd, void *buffer, size_t size, pth_event_t ev);
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int pth_read (int fd, void *buffer, size_t size);
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int pth_write_ev (int fd, const void *buffer, size_t size, pth_event_t ev);
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int pth_write (int fd, const void *buffer, size_t size);
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int pth_select (int nfds, fd_set *rfds, fd_set *wfds, fd_set *efds,
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const struct timeval *timeout);
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int pth_accept (int fd, struct sockaddr *addr, int *addrlen);
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int pth_accept_ev (int fd, struct sockaddr *addr, int *addrlen,
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pth_event_t hd);
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int pth_connect (int fd, struct sockaddr *name, int namelen);
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int pth_mutex_release (pth_mutex_t *hd);
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int pth_mutex_acquire(pth_mutex_t *hd, int try_only, pth_event_t ev_extra);
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int pth_mutex_init (pth_mutex_t *hd);
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pth_attr_t pth_attr_new (void);
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int pth_attr_destroy (pth_attr_t hd);
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int pth_attr_set (pth_attr_t hd, int field, ...);
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pth_t pth_spawn (pth_attr_t hd, void *(*func)(void *), void *arg);
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pth_t pth_self (void);
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int pth_join (pth_t hd, void **value);
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int pth_abort (pth_t hd);
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void pth_exit (void *value);
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unsigned int pth_waitpid (unsigned int, int *status, int options);
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int pth_wait (pth_event_t hd);
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int pth_sleep (int n);
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pth_time_t pth_timeout (long sec, long usec);
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pth_event_t pth_event_isolate (pth_event_t hd);
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int pth_event_free (pth_event_t hd, int mode);
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int pth_event_status (pth_event_t hd);
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int pth_event_occurred (pth_event_t hd);
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pth_event_t pth_event_concat (pth_event_t ev, ...);
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pth_event_t pth_event (unsigned long spec, ...);
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/*-- pth_util.c --*/
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/* void sigemptyset (struct sigset_s * ss); */
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/* int sigaddset (struct sigset_s * ss, int signo); */
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#endif /*W32_PTH_H*/
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