lock.c File Reference

#include <stdarg.h>
#include <stdbool.h>
#include "wine/debug.h"
#include "windef.h"
#include "winbase.h"
#include "winternl.h"
#include "msvcrt.h"
#include "mtdll.h"
#include "cxx.h"

Include dependency graph for lock.c:

Go to the source code of this file.

Classes
struct	LOCKTABLEENTRY

Functions
	WINE_DEFAULT_DEBUG_CHANNEL (msvcrt)
static void	msvcrt_mlock_set_entry_initialized (int locknum, BOOL initialized)
static void	msvcrt_initialize_mlock (int locknum)
static void	msvcrt_uninitialize_mlock (int locknum)
void	msvcrt_init_mt_locks (void)
void CDECL	_lock (int locknum)
void CDECL	_unlock (int locknum)
void	msvcrt_free_locks (void)

Variables
static LOCKTABLEENTRY	lock_table [_TOTAL_LOCKS]

Function Documentation

_lock()

void CDECL _lock

(

int

locknum

)

Definition at line 85 of file lock.c.

{
  TRACE( "(%d)\n", locknum );
 
  /* If the lock doesn't exist yet, create it */
  if( lock_table[ locknum ].bInit == FALSE )
  {
    /* Lock while we're changing the lock table */
    _lock( _LOCKTAB_LOCK );
 
    /* Check again if we've got a bit of a race on lock creation */
    if( lock_table[ locknum ].bInit == FALSE )
    {
      TRACE( ": creating lock #%d\n", locknum );
      msvcrt_initialize_mlock( locknum );
    }
 
    /* Unlock ourselves */
    _unlock( _LOCKTAB_LOCK );
  }
 
  EnterCriticalSection( &(lock_table[ locknum ].crit) );
}

Referenced by __acrt_initialize_stdio(), __acrt_uninitialize_stdio(), _execute_onexit_table(), _fcloseall(), _lock(), _lock_file(), _lock_locales(), _pclose(), _register_onexit_function(), _setmbcp(), _tzset(), _tzset_init(), _unlock_file(), _wgetenv(), _wgetenv_s(), _wpopen(), getenv(), getenv_s(), putenv_helper(), update_thread_locale(), and wputenv_helper().

_unlock()

void CDECL _unlock

(

int

locknum

)

Definition at line 114 of file lock.c.

{
  TRACE( "(%d)\n", locknum );
 
  LeaveCriticalSection( &(lock_table[ locknum ].crit) );
}

Referenced by _execute_onexit_table(), _lock(), _pclose(), _register_onexit_function(), _setmbcp(), _tzset(), _tzset_init(), _unlock_file(), _unlock_locales(), _wgetenv(), _wgetenv_s(), _wpopen(), getenv(), getenv_s(), putenv_helper(), update_thread_locale(), and wputenv_helper().

msvcrt_free_locks()

void msvcrt_free_locks

(

void

)

Definition at line 149 of file lock.c.

{
  int i;
 
  TRACE( ": uninitializing all mtlocks\n" );
 
  /* Uninitialize the table */
  for( i=0; i < _TOTAL_LOCKS; i++ )
  {
    if( lock_table[ i ].bInit )
    {
      msvcrt_uninitialize_mlock( i );
    }
  }
}

Referenced by DllMain().

msvcrt_init_mt_locks()

void msvcrt_init_mt_locks

(

void

)

Definition at line 66 of file lock.c.

{
  int i;
 
  TRACE( "initializing mtlocks\n" );
 
  /* Initialize the table */
  for( i=0; i < _TOTAL_LOCKS; i++ )
  {
    msvcrt_mlock_set_entry_initialized( i, FALSE );
  }
 
  /* Initialize our lock table lock */
  msvcrt_initialize_mlock( _LOCKTAB_LOCK );
}

Referenced by DllMain().

msvcrt_initialize_mlock()

static void msvcrt_initialize_mlock ( int  locknum )

inlinestatic

Definition at line 45 of file lock.c.

{
  InitializeCriticalSectionEx( &(lock_table[ locknum ].crit), 0, RTL_CRITICAL_SECTION_FLAG_FORCE_DEBUG_INFO );
  lock_table[ locknum ].crit.DebugInfo->Spare[0] = (DWORD_PTR)(__FILE__ ": LOCKTABLEENTRY.crit");
  msvcrt_mlock_set_entry_initialized( locknum, TRUE );
}

Referenced by _lock(), and msvcrt_init_mt_locks().

msvcrt_mlock_set_entry_initialized()

static void msvcrt_mlock_set_entry_initialized ( int  locknum, BOOL  initialized  )

inlinestatic

Definition at line 40 of file lock.c.

{
  lock_table[ locknum ].bInit = initialized;
}

Referenced by msvcrt_init_mt_locks(), msvcrt_initialize_mlock(), and msvcrt_uninitialize_mlock().

msvcrt_uninitialize_mlock()

static void msvcrt_uninitialize_mlock ( int  locknum )

inlinestatic

Definition at line 52 of file lock.c.

{
  lock_table[ locknum ].crit.DebugInfo->Spare[0] = 0;
  DeleteCriticalSection( &(lock_table[ locknum ].crit) );
  msvcrt_mlock_set_entry_initialized( locknum, FALSE );
}

Referenced by msvcrt_free_locks(), and msvcrt_free_mt_locks().

WINE_DEFAULT_DEBUG_CHANNEL()

WINE_DEFAULT_DEBUG_CHANNEL

(

msvcrt

)

Variable Documentation

lock_table

LOCKTABLEENTRY lock_table[_TOTAL_LOCKS]

static

Definition at line 38 of file lock.c.

Referenced by _lock(), _unlock(), msvcrt_free_locks(), msvcrt_free_mt_locks(), msvcrt_initialize_mlock(), msvcrt_mlock_set_entry_initialized(), and msvcrt_uninitialize_mlock().