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Diffstat (limited to 'winsup/cygwin/thread.h')
-rw-r--r-- | winsup/cygwin/thread.h | 598 |
1 files changed, 0 insertions, 598 deletions
diff --git a/winsup/cygwin/thread.h b/winsup/cygwin/thread.h deleted file mode 100644 index c36466020..000000000 --- a/winsup/cygwin/thread.h +++ /dev/null @@ -1,598 +0,0 @@ -/* thread.h: Locking and threading module definitions - - Copyright 1998, 1999, 2000, 2001, 2002 Red Hat, Inc. - - Written by Marco Fuykschot <marco@ddi.nl> - Major update 2001 Robert Collins <rbtcollins@hotmail.com> - -This file is part of Cygwin. - -This software is a copyrighted work licensed under the terms of the -Cygwin license. Please consult the file "CYGWIN_LICENSE" for -details. */ - -#ifndef _CYGNUS_THREADS_ -#define _CYGNUS_THREADS_ - -#define LOCK_FD_LIST 1 -#define LOCK_MEMORY_LIST 2 -#define LOCK_MMAP_LIST 3 -#define LOCK_DLL_LIST 4 - -#define WRITE_LOCK 1 -#define READ_LOCK 2 - -extern "C" -{ -#if defined (_CYG_THREAD_FAILSAFE) && defined (_MT_SAFE) - void AssertResourceOwner (int, int); -#else -#define AssertResourceOwner(i,ii) -#endif -} - -#ifndef _MT_SAFE - -#define SetResourceLock(i,n,c) -#define ReleaseResourceLock(i,n,c) - -#else - -#include <pthread.h> -#include <signal.h> -#include <pwd.h> -#include <grp.h> -#define _NOMNTENT_FUNCS -#include <mntent.h> - -extern "C" -{ - -struct _winsup_t -{ - /* - Needed for the group functions - */ - struct __group16 _grp; - char *_namearray[2]; - int _grp_pos; - - /* console.cc */ - unsigned _rarg; - - /* dlfcn.cc */ - int _dl_error; - char _dl_buffer[256]; - - /* passwd.cc */ - struct passwd _res; - char _pass[_PASSWORD_LEN]; - int _pw_pos; - - /* path.cc */ - struct mntent mntbuf; - int _iteration; - DWORD available_drives; - char mnt_type[80]; - char mnt_opts[80]; - char mnt_fsname[MAX_PATH]; - char mnt_dir[MAX_PATH]; - - /* strerror */ - char _strerror_buf[20]; - - /* sysloc.cc */ - char *_process_ident; - int _process_logopt; - int _process_facility; - int _process_logmask; - - /* times.cc */ - char timezone_buf[20]; - struct tm _localtime_buf; - - /* uinfo.cc */ - char _username[UNLEN + 1]; - - /* net.cc */ - char *_ntoa_buf; - struct protoent *_protoent_buf; - struct servent *_servent_buf; - struct hostent *_hostent_buf; -}; - - -struct __reent_t -{ - struct _reent *_clib; - struct _winsup_t *_winsup; -}; - -_reent *_reent_clib (); -_winsup_t *_reent_winsup (); -void SetResourceLock (int, int, const char *) __attribute__ ((regparm (3))); -void ReleaseResourceLock (int, int, const char *) - __attribute__ ((regparm (3))); - -#ifdef _CYG_THREAD_FAILSAFE -void AssertResourceOwner (int, int); -#else -#define AssertResourceOwner(i,ii) -#endif -} - -class per_process; -class pinfo; - -class ResourceLocks -{ -public: - ResourceLocks () - { - } - LPCRITICAL_SECTION Lock (int); - void Init (); - void Delete (); -#ifdef _CYG_THREAD_FAILSAFE - DWORD owner; - DWORD count; -#endif -private: - CRITICAL_SECTION lock; - bool inited; -}; - -#define PTHREAD_MAGIC 0xdf0df045 -#define PTHREAD_MUTEX_MAGIC PTHREAD_MAGIC+1 -#define PTHREAD_KEY_MAGIC PTHREAD_MAGIC+2 -#define PTHREAD_ATTR_MAGIC PTHREAD_MAGIC+3 -#define PTHREAD_MUTEXATTR_MAGIC PTHREAD_MAGIC+4 -#define PTHREAD_COND_MAGIC PTHREAD_MAGIC+5 -#define PTHREAD_CONDATTR_MAGIC PTHREAD_MAGIC+6 -#define SEM_MAGIC PTHREAD_MAGIC+7 -#define PTHREAD_ONCE_MAGIC PTHREAD_MAGIC+8; - -/* verifyable_object should not be defined here - it's a general purpose class */ - -class verifyable_object -{ -public: - long magic; - - verifyable_object (long); - ~verifyable_object (); -}; - -typedef enum -{ - VALID_OBJECT, - INVALID_OBJECT, - VALID_STATIC_OBJECT -} verifyable_object_state; - -verifyable_object_state verifyable_object_isvalid (void const *, long); -verifyable_object_state verifyable_object_isvalid (void const *, long, void *); - -/* interface */ -template <class ListNode> class List { -public: - List(); - void Insert (ListNode *aNode); - ListNode *Remove ( ListNode *aNode); - ListNode *Pop (); - void forEach (void (*)(ListNode *aNode)); -protected: - ListNode *head; -}; - -class pthread_key:public verifyable_object -{ -public: - static bool isGoodObject (pthread_key_t const *); - static void runAllDestructors (); - - DWORD dwTlsIndex; - - int set (const void *); - void *get () const; - - pthread_key (void (*)(void *)); - ~pthread_key (); - static void fixup_before_fork(); - static void fixup_after_fork(); - - /* List support calls */ - class pthread_key *next; -private: - // lists of objects. USE THREADSAFE INSERTS AND DELETES. - static List<pthread_key> keys; - static void saveAKey (pthread_key *); - static void restoreAKey (pthread_key *); - static void destroyAKey (pthread_key *); - void saveKeyToBuffer (); - void recreateKeyFromBuffer (); - void (*destructor) (void *); - void run_destructor () const; - void *fork_buf; -}; - -/* implementation */ -template <class ListNode> -List<ListNode>::List<ListNode> () : head(NULL) -{ -} -template <class ListNode> void -List<ListNode>::Insert (ListNode *aNode) -{ - if (!aNode) - return; - aNode->next = (ListNode *) InterlockedExchangePointer (&head, aNode); -} -template <class ListNode> ListNode * -List<ListNode>::Remove ( ListNode *aNode) -{ - if (!aNode) - return NULL; - if (!head) - return NULL; - if (aNode == head) - return Pop (); - ListNode *resultPrev = head; - while (resultPrev && resultPrev->next && !(aNode == resultPrev->next)) - resultPrev = resultPrev->next; - if (resultPrev) - return (ListNode *)InterlockedExchangePointer (&resultPrev->next, resultPrev->next->next); - return NULL; -} -template <class ListNode> ListNode * -List<ListNode>::Pop () -{ - return (ListNode *) InterlockedExchangePointer (&head, head->next); -} -/* poor mans generic programming. */ -template <class ListNode> void -List<ListNode>::forEach (void (*callback)(ListNode *)) -{ - ListNode *aNode = head; - while (aNode) - { - callback (aNode); - aNode = aNode->next; - } -} - -class pthread_attr:public verifyable_object -{ -public: - static bool isGoodObject(pthread_attr_t const *); - int joinable; - int contentionscope; - int inheritsched; - struct sched_param schedparam; - size_t stacksize; - - pthread_attr (); - ~pthread_attr (); -}; - -class pthread_mutexattr:public verifyable_object -{ -public: - static bool isGoodObject(pthread_mutexattr_t const *); - int pshared; - int mutextype; - pthread_mutexattr (); - ~pthread_mutexattr (); -}; - -class pthread_mutex:public verifyable_object -{ -public: - static bool isGoodObject(pthread_mutex_t const *); - static bool isGoodInitializer(pthread_mutex_t const *); - static bool isGoodInitializerOrObject(pthread_mutex_t const *); - CRITICAL_SECTION criticalsection; - HANDLE win32_obj_id; - LONG condwaits; - int pshared; - class pthread_mutex * next; - - int Lock (); - int TryLock (); - int UnLock (); - void fixup_after_fork (); - - pthread_mutex (pthread_mutexattr * = NULL); - pthread_mutex (pthread_mutex_t *, pthread_mutexattr *); - ~pthread_mutex (); -}; - -class pthread:public verifyable_object -{ -public: - HANDLE win32_obj_id; - class pthread_attr attr; - void *(*function) (void *); - void *arg; - void *return_ptr; - bool suspended; - int cancelstate, canceltype; - HANDLE cancel_event; - pthread_t joiner; - // int joinable; - - /* signal handling */ - struct sigaction *sigs; - sigset_t *sigmask; - LONG *sigtodo; - virtual void create (void *(*)(void *), pthread_attr *, void *); - - pthread (); - virtual ~pthread (); - - static void initMainThread(pthread *, HANDLE); - static bool isGoodObject(pthread_t const *); - static void atforkprepare(); - static void atforkparent(); - static void atforkchild(); - - /* API calls */ - static int cancel (pthread_t); - static int join (pthread_t * thread, void **return_val); - static int detach (pthread_t * thread); - static int create (pthread_t * thread, const pthread_attr_t * attr, - void *(*start_routine) (void *), void *arg); - static int once (pthread_once_t *, void (*)(void)); - static int atfork(void (*)(void), void (*)(void), void (*)(void)); - static int suspend (pthread_t * thread); - static int resume (pthread_t * thread); - - virtual void exit (void *value_ptr); - - virtual int cancel (); - - virtual void testcancel (); - static void static_cancel_self (); - - virtual int setcancelstate (int state, int *oldstate); - virtual int setcanceltype (int type, int *oldtype); - - virtual void push_cleanup_handler (__pthread_cleanup_handler *handler); - virtual void pop_cleanup_handler (int const execute); - - static pthread* self (); - static void *thread_init_wrapper (void *); - - virtual unsigned long getsequence_np(); - -private: - DWORD thread_id; - __pthread_cleanup_handler *cleanup_stack; - pthread_mutex mutex; - - void pop_all_cleanup_handlers (void); - void precreate (pthread_attr *); - void postcreate (); - void setThreadIdtoCurrent(); - static void setTlsSelfPointer(pthread *); - void cancel_self (); - DWORD getThreadId (); -}; - -class pthreadNull : public pthread -{ - public: - static pthread *getNullpthread(); - ~pthreadNull(); - - /* From pthread These should never get called - * as the ojbect is not verifyable - */ - void create (void *(*)(void *), pthread_attr *, void *); - void exit (void *value_ptr); - int cancel (); - void testcancel (); - int setcancelstate (int state, int *oldstate); - int setcanceltype (int type, int *oldtype); - void push_cleanup_handler (__pthread_cleanup_handler *handler); - void pop_cleanup_handler (int const execute); - unsigned long getsequence_np(); - - private: - pthreadNull (); - static pthreadNull _instance; -}; - -class pthread_condattr:public verifyable_object -{ -public: - static bool isGoodObject(pthread_condattr_t const *); - int shared; - - pthread_condattr (); - ~pthread_condattr (); -}; - -class pthread_cond:public verifyable_object -{ -public: - static bool isGoodObject(pthread_cond_t const *); - static bool isGoodInitializer(pthread_cond_t const *); - static bool isGoodInitializerOrObject(pthread_cond_t const *); - int shared; - LONG waiting; - LONG ExitingWait; - pthread_mutex *mutex; - /* to allow atomic behaviour for cond_broadcast */ - pthread_mutex_t cond_access; - HANDLE win32_obj_id; - class pthread_cond * next; - int TimedWait (DWORD dwMilliseconds); - void BroadCast (); - void Signal (); - void fixup_after_fork (); - - pthread_cond (pthread_condattr *); - ~pthread_cond (); -}; - -class pthread_once -{ -public: - pthread_mutex_t mutex; - int state; -}; - -/* shouldn't be here */ -class semaphore:public verifyable_object -{ -public: - static bool isGoodObject(sem_t const *); - /* API calls */ - static int init (sem_t * sem, int pshared, unsigned int value); - static int destroy (sem_t * sem); - static int wait (sem_t * sem); - static int trywait (sem_t * sem); - static int post (sem_t * sem); - - HANDLE win32_obj_id; - class semaphore * next; - int shared; - long currentvalue; - void Wait (); - void Post (); - int TryWait (); - void fixup_after_fork (); - - semaphore (int, unsigned int); - ~semaphore (); -}; - -class callback -{ -public: - void (*cb)(void); - class callback * next; -}; - -class MTinterface -{ -public: - // General - DWORD reent_index; - DWORD thread_self_dwTlsIndex; - /* we may get 0 for the Tls index.. grrr */ - int indexallocated; - int concurrency; - long int threadcount; - - // Used for main thread data, and sigproc thread - struct __reent_t reents; - struct _winsup_t winsup_reent; - pthread mainthread; - - callback *pthread_prepare; - callback *pthread_child; - callback *pthread_parent; - - // lists of pthread objects. USE THREADSAFE INSERTS AND DELETES. - class pthread_mutex * mutexs; - class pthread_cond * conds; - class semaphore * semaphores; - - void Init (int); - void fixup_before_fork (void); - void fixup_after_fork (void); - - MTinterface ():reent_index (0), indexallocated (0), threadcount (1) - { - pthread_prepare = NULL; - pthread_child = NULL; - pthread_parent = NULL; - } -}; - -extern "C" -{ -int __pthread_attr_init (pthread_attr_t * attr); -int __pthread_attr_destroy (pthread_attr_t * attr); -int __pthread_attr_setdetachstate (pthread_attr_t *, int); -int __pthread_attr_getdetachstate (const pthread_attr_t *, int *); -int __pthread_attr_setstacksize (pthread_attr_t * attr, size_t size); -int __pthread_attr_getstacksize (const pthread_attr_t * attr, size_t * size); - -int __pthread_attr_getinheritsched (const pthread_attr_t *, int *); -int __pthread_attr_getschedparam (const pthread_attr_t *, - struct sched_param *); -int __pthread_attr_getschedpolicy (const pthread_attr_t *, int *); -int __pthread_attr_getscope (const pthread_attr_t *, int *); -int __pthread_attr_getstackaddr (const pthread_attr_t *, void **); -int __pthread_attr_setinheritsched (pthread_attr_t *, int); -int __pthread_attr_setschedparam (pthread_attr_t *, - const struct sched_param *); -int __pthread_attr_setschedpolicy (pthread_attr_t *, int); -int __pthread_attr_setscope (pthread_attr_t *, int); -int __pthread_attr_setstackaddr (pthread_attr_t *, void *); - -/* Thread SpecificData */ -int __pthread_key_create (pthread_key_t * key, void (*destructor) (void *)); -int __pthread_key_delete (pthread_key_t key); -int __pthread_setspecific (pthread_key_t key, const void *value); -void *__pthread_getspecific (pthread_key_t key); - -/* Thead synchroniation */ -int __pthread_cond_destroy (pthread_cond_t * cond); -int __pthread_cond_init (pthread_cond_t * cond, - const pthread_condattr_t * attr); -int __pthread_cond_signal (pthread_cond_t * cond); -int __pthread_cond_broadcast (pthread_cond_t * cond); -int __pthread_condattr_init (pthread_condattr_t * condattr); -int __pthread_condattr_destroy (pthread_condattr_t * condattr); -int __pthread_condattr_getpshared (const pthread_condattr_t * attr, - int *pshared); -int __pthread_condattr_setpshared (pthread_condattr_t * attr, int pshared); - -/* Thread signal */ -int __pthread_kill (pthread_t thread, int sig); -int __pthread_sigmask (int operation, const sigset_t * set, - sigset_t * old_set); - -/* ID */ -int __pthread_equal (pthread_t * t1, pthread_t * t2); - -/* Mutexes */ -int __pthread_mutex_init (pthread_mutex_t *, const pthread_mutexattr_t *); -int __pthread_mutex_lock (pthread_mutex_t *); -int __pthread_mutex_trylock (pthread_mutex_t *); -int __pthread_mutex_unlock (pthread_mutex_t *); -int __pthread_mutex_destroy (pthread_mutex_t *); -int __pthread_mutex_setprioceiling (pthread_mutex_t * mutex, - int prioceiling, int *old_ceiling); -int __pthread_mutex_getprioceiling (const pthread_mutex_t * mutex, - int *prioceiling); - - -int __pthread_mutexattr_destroy (pthread_mutexattr_t *); -int __pthread_mutexattr_getprioceiling (const pthread_mutexattr_t *, int *); -int __pthread_mutexattr_getprotocol (const pthread_mutexattr_t *, int *); -int __pthread_mutexattr_getpshared (const pthread_mutexattr_t *, int *); -int __pthread_mutexattr_gettype (const pthread_mutexattr_t *, int *); -int __pthread_mutexattr_init (pthread_mutexattr_t *); -int __pthread_mutexattr_setprioceiling (pthread_mutexattr_t *, int); -int __pthread_mutexattr_setprotocol (pthread_mutexattr_t *, int); -int __pthread_mutexattr_setpshared (pthread_mutexattr_t *, int); -int __pthread_mutexattr_settype (pthread_mutexattr_t *, int); - - -/* Scheduling */ -int __pthread_getconcurrency (void); -int __pthread_setconcurrency (int new_level); -int __pthread_getschedparam (pthread_t thread, int *policy, - struct sched_param *param); -int __pthread_setschedparam (pthread_t thread, int policy, - const struct sched_param *param); - -}; -#endif // MT_SAFE - -#endif // _CYGNUS_THREADS_ |