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* sched.cc: New file. Implement sched*.

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* include/sched.h: New file.  User land includes for sched*.
* Makefile.in: Add sched.o
* cygwin.din: Add exports for sched*.
This commit is contained in:
Christopher Faylor
2001-03-21 02:17:58 +00:00
parent a1299ba54b
commit 9a08b2c02e
7 changed files with 1019 additions and 957 deletions
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390
winsup/cygwin/thread.h
View File

@@ -1,9 +1,11 @@
/* thread.h: Locking and threading module definitions
Copyright 1998, 1999, 2000 Cygnus Solutions.
Copyright 2001 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
@@ -17,10 +19,6 @@ details. */
#define LOCK_MEMORY_LIST 2
#define LOCK_MMAP_LIST 3
#define LOCK_DLL_LIST 4
#define LOCK_THREAD_LIST 5
#define LOCK_MUTEX_LIST 6
#define LOCK_SEM_LIST 7
#define LOCK_COND_LIST 8
#define WRITE_LOCK 1
#define READ_LOCK 2
@@ -41,80 +39,97 @@ extern "C"
#else
#include <pthread.h>
//#include <pthread.h>
/* FIXME: these are defined in pthread.h, but pthread.h defines symbols it shouldn't -
* all the types.
*/
#define PTHREAD_PROCESS_PRIVATE 0
#define PTHREAD_PROCESS_SHARED 1
#define PTHREAD_DESTRUCTOR_ITERATIONS 1
/* Tls has 64 items for pre win2000 - and we don't want to use them all :]
* Before committing discuss this with the list
*/
#define PTHREAD_KEYS_MAX 32
#define PTHREAD_CREATE_DETACHED 1
/* the default : joinable */
#define PTHREAD_CREATE_JOINABLE 0
#include <signal.h>
#include <pwd.h>
#include <grp.h>
#define _NOMNTENT_FUNCS
#include <mntent.h>
extern "C" {
struct _winsup_t
extern "C"
{
struct _winsup_t
{
/*
Needed for the group functions
*/
struct group _grp;
char *_namearray[2];
char _linebuf[100];
int _grp_pos;
struct group _grp;
char *_namearray[2];
char _linebuf[100];
int _grp_pos;
/* console.cc */
unsigned _rarg;
unsigned _rarg;
/* dlfcn.cc */
int _dl_error;
char _dl_buffer[256];
int _dl_error;
char _dl_buffer[256];
/* passwd.cc */
struct passwd _res;
char _tmpbuf[100];
char _pass[_PASSWORD_LEN];
int _pw_pos;
struct passwd _res;
char _tmpbuf[100];
char _pass[_PASSWORD_LEN];
int _pw_pos;
/* path.cc */
struct mntent _ret;
int _iteration;
struct mntent _ret;
int _iteration;
/* strerror */
char _strerror_buf[20];
char _strerror_buf[20];
/* syscalls.cc */
char _dacl_buf[1024];
char _sacl_buf[1024];
char _ownr_buf[1024];
char _grp_buf[1024];
char _dacl_buf[1024];
char _sacl_buf[1024];
char _ownr_buf[1024];
char _grp_buf[1024];
/* sysloc.cc */
char *_process_ident;
int _process_logopt;
int _process_facility;
int _process_logmask;
char *_process_ident;
int _process_logopt;
int _process_facility;
int _process_logmask;
/* times.cc */
char _b[20];
struct tm _localtime_buf;
char _buf1[33];
char _buf2[33];
char _b[20];
struct tm _localtime_buf;
char _buf1[33];
char _buf2[33];
/* uinfo.cc */
char _username[MAX_USER_NAME];
};
char _username[MAX_USER_NAME];
};
struct __reent_t
{
struct _reent *_clib;
struct _winsup_t *_winsup;
};
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)));
_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);
void AssertResourceOwner (int, int);
#else
#define AssertResourceOwner(i,ii)
#endif
@@ -126,7 +141,9 @@ class pinfo;
class ResourceLocks
{
public:
ResourceLocks () {};
ResourceLocks ()
{
};
LPCRITICAL_SECTION Lock (int);
void Init ();
void Delete ();
@@ -134,196 +151,255 @@ public:
DWORD owner;
DWORD count;
#endif
private:
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 MT_MAX_ITEMS 128
// thread classes\lists
class MTitem
{
public:
HANDLE win32_obj_id;
UINT return_value;
bool used;
char joinable; // for thread only
bool HandleOke () {return win32_obj_id;}
virtual void Destroy ();
virtual int Id () {return (int) win32_obj_id;}
};
class ThreadItem: public MTitem
class verifyable_object
{
public:
pthread_attr_t attr;
TFD (function);
long magic;
verifyable_object (long);
~verifyable_object ();
};
int verifyable_object_isvalid (verifyable_object *, long);
class pthread_attr:public verifyable_object
{
public:
int joinable;
size_t stacksize;
pthread_attr ();
~pthread_attr ();
};
class pthread:public verifyable_object
{
public:
HANDLE win32_obj_id;
class pthread_attr attr;
void *(*function) (void *);
void *arg;
void *return_ptr;
bool suspended;
DWORD thread_id;
DWORD GetThreadId () {return thread_id;}
int joinable;
DWORD GetThreadId ()
{
return thread_id;
}
void setThreadIdtoCurrent ()
{
thread_id = GetCurrentThreadId ();
}
/* signal handling */
struct sigaction *sigs;
sigset_t *sigmask;
LONG *sigtodo;
void create (void *(*)(void *), pthread_attr *, void *);
pthread ();
~pthread ();
private:
DWORD thread_id;
};
class MutexItem: public MTitem
class pthread_mutexattr:public verifyable_object
{
public:
pthread_mutexattr ();
~pthread_mutexattr ();
};
class pthread_mutex:public verifyable_object
{
public:
HANDLE win32_obj_id;
LONG condwaits;
int Lock ();
int TryLock ();
int UnLock ();
pthread_mutex (pthread_mutexattr *);
~pthread_mutex ();
};
class SemaphoreItem: public MTitem
class pthread_key:public verifyable_object
{
public:
DWORD dwTlsIndex;
int set (const void *);
void *get ();
pthread_key ();
~pthread_key ();
};
class pthread_condattr:public verifyable_object
{
public:
int shared;
int Wait ();
int Post ();
int TryWait ();
pthread_condattr ();
~pthread_condattr ();
};
class CondItem: public MTitem
class pthread_cond:public verifyable_object
{
public:
int shared;
LONG waiting;
MutexItem *mutexitem;
int Wait ();
pthread_mutex *mutex;
HANDLE win32_obj_id;
int TimedWait (DWORD dwMilliseconds);
int BroadCast ();
int Signal ();
void BroadCast ();
void Signal ();
pthread_cond (pthread_condattr *);
~pthread_cond ();
};
typedef struct
/* shouldn't be here */
class semaphore:public verifyable_object
{
MTitem *items[MT_MAX_ITEMS];
int index;
} MTList;
public:
HANDLE win32_obj_id;
int shared;
void Wait ();
void Post ();
int TryWait ();
semaphore (int, unsigned int);
~semaphore ();
};
typedef class pthread *pthread_t;
typedef class pthread_mutex *pthread_mutex_t;
/* sem routines belong in semaphore.cc */
typedef class semaphore *sem_t;
typedef class pthread_key *pthread_key_t;
typedef class pthread_attr *pthread_attr_t;
typedef class pthread_mutexattr *pthread_mutexattr_t;
typedef class pthread_condattr *pthread_condattr_t;
typedef class pthread_cond *pthread_cond_t;
class MTinterface
{
public:
// General
DWORD reent_index;
DWORD thread_key;
DWORD thread_self_dwTlsIndex;
/* we may get 0 for the Tls index.. grrr */
int indexallocated;
// Used for main thread data, and sigproc thread
struct __reent_t reents;
struct _winsup_t winsup_reent;
ThreadItem mainthread;
pthread mainthread;
void Init (int);
void ReleaseItem (MTitem *);
// Thread functions
ThreadItem *CreateThread (pthread_t *, TFD (func), void *, pthread_attr_t);
ThreadItem *GetCallingThread ();
ThreadItem *GetThread (pthread_t *);
// Mutex functions
MutexItem *CreateMutex (pthread_mutex_t *);
MutexItem *GetMutex (pthread_mutex_t *);
// Semaphore functions
SemaphoreItem *CreateSemaphore (sem_t *, int, int);
SemaphoreItem *GetSemaphore (sem_t * t);
// Condition functions
CondItem *CreateCond (pthread_cond_t *, const pthread_condattr_t *);
CondItem *GetCond (pthread_cond_t *);
private:
// General Administration
MTitem * Find (void *, int (*compare) (void *, void *), int &, MTList *);
MTitem *GetItem (int, MTList *);
MTitem *SetItem (int, MTitem *, MTList *);
int Find (MTitem &, MTList *);
int FindNextUnused (MTList *);
MTList threadlist;
MTList mutexlist;
MTList semalist;
MTList condlist;
MTinterface ():reent_index (0), indexallocated (0)
{
}
};
extern "C"
{
void *thread_init_wrapper (void *);
void *thread_init_wrapper (void *);
/* ThreadCreation */
int __pthread_create (pthread_t * thread, const pthread_attr_t * attr, TFD (start_routine), void *arg);
int __pthread_attr_init (pthread_attr_t * attr);
int __pthread_attr_destroy (pthread_attr_t * attr);
int __pthread_attr_setstacksize (pthread_attr_t * attr, size_t size);
int __pthread_attr_getstacksize (pthread_attr_t * attr, size_t * size);
int __pthread_create (pthread_t * thread, const pthread_attr_t * attr,
void *(*start_routine) (void *), void *arg);
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 (pthread_attr_t * attr, size_t * size);
/*
__pthread_attr_setstackaddr(...);
__pthread_attr_getstackaddr(...);
*/
/* Thread Exit */
int __pthread_exit (void *value_ptr);
int __pthread_join(pthread_t *thread, void **return_val);
int __pthread_detach(pthread_t *thread);
void __pthread_exit (void *value_ptr);
int __pthread_join (pthread_t * thread, void **return_val);
int __pthread_detach (pthread_t * thread);
/* Thread suspend */
int __pthread_suspend(pthread_t *thread);
int __pthread_continue(pthread_t *thread);
int __pthread_suspend (pthread_t * thread);
int __pthread_continue (pthread_t * thread);
unsigned long __pthread_getsequence_np (pthread_t * thread);
unsigned long __pthread_getsequence_np (pthread_t * thread);
/* Thread SpecificData */
int __pthread_key_create (pthread_key_t * key);
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);
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_cond_timedwait(pthread_cond_t *cond, pthread_mutex_t *mutex, const struct timespec *abstime);
int __pthread_cond_wait(pthread_cond_t *cond, pthread_mutex_t *mutex);
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);
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_cond_timedwait (pthread_cond_t * cond,
pthread_mutex_t * mutex,
const struct timespec *abstime);
int __pthread_cond_wait (pthread_cond_t * cond, pthread_mutex_t * mutex);
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);
int __pthread_kill (pthread_t * thread, int sig);
int __pthread_sigmask (int operation, const sigset_t * set,
sigset_t * old_set);
/* ID */
pthread_t __pthread_self ();
int __pthread_equal (pthread_t * t1, pthread_t * t2);
pthread_t __pthread_self ();
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_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 *);
/* Semaphores */
int __sem_init (sem_t * sem, int pshared, unsigned int value);
int __sem_destroy (sem_t * sem);
int __sem_wait (sem_t * sem);
int __sem_trywait (sem_t * sem);
int __sem_post (sem_t * sem);
int __sem_init (sem_t * sem, int pshared, unsigned int value);
int __sem_destroy (sem_t * sem);
int __sem_wait (sem_t * sem);
int __sem_trywait (sem_t * sem);
int __sem_post (sem_t * sem);
};