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Use the Rtl bitmap functions to implement Tls allocation. 

Get rid of the PDB structure.
This commit is contained in:
Alexandre Julliard 2003-10-09 19:58:56 +00:00
parent 30b588955a
commit 5cb5aa6346
3 changed files with 45 additions and 113 deletions
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120
dlls/kernel/process.c
View File

@ -46,57 +46,7 @@ WINE_DEFAULT_DEBUG_CHANNEL(process);
WINE_DECLARE_DEBUG_CHANNEL(server);
WINE_DECLARE_DEBUG_CHANNEL(relay);
/* Win32 process database */
typedef struct _PDB
{
LONG header[2]; /* 00 Kernel object header */
HMODULE module; /* 08 Main exe module (NT) */
PPEB_LDR_DATA LdrData; /* 0c Pointer to loader information */
RTL_USER_PROCESS_PARAMETERS *ProcessParameters; /* 10 Process parameters */
DWORD unknown2; /* 14 Unknown */
HANDLE heap; /* 18 Default process heap */
HANDLE mem_context; /* 1c Process memory context */
DWORD flags; /* 20 Flags */
void *pdb16; /* 24 DOS PSP */
WORD PSP_sel; /* 28 Selector to DOS PSP */
WORD imte; /* 2a IMTE for the process module */
WORD threads; /* 2c Number of threads */
WORD running_threads; /* 2e Number of running threads */
WORD free_lib_count; /* 30 Recursion depth of FreeLibrary calls */
WORD ring0_threads; /* 32 Number of ring 0 threads */
HANDLE system_heap; /* 34 System heap to allocate handles */
HTASK task; /* 38 Win16 task */
void *mem_map_files; /* 3c Pointer to mem-mapped files */
struct _ENVDB *env_db; /* 40 Environment database */
void *handle_table; /* 44 Handle table */
struct _PDB *parent; /* 48 Parent process */
void *modref_list; /* 4c MODREF list */
void *thread_list; /* 50 List of threads */
void *debuggee_CB; /* 54 Debuggee context block */
void *local_heap_free; /* 58 Head of local heap free list */
DWORD unknown4; /* 5c Unknown */
CRITICAL_SECTION crit_section; /* 60 Critical section */
DWORD unknown5[3]; /* 78 Unknown */
void *console; /* 84 Console */
DWORD tls_bits[2]; /* 88 TLS in-use bits */
DWORD process_dword; /* 90 Unknown */
struct _PDB *group; /* 94 Process group */
void *exe_modref; /* 98 MODREF for the process EXE */
void *top_filter; /* 9c Top exception filter */
DWORD priority; /* a0 Priority level */
HANDLE heap_list; /* a4 Head of process heap list */
void *heap_handles; /* a8 Head of heap handles list */
DWORD unknown6; /* ac Unknown */
void *console_provider; /* b0 Console provider (??) */
WORD env_selector; /* b4 Selector to process environment */
WORD error_mode; /* b6 Error mode */
HANDLE load_done_evt; /* b8 Event for process loading done */
void *UTState; /* bc Head of Univeral Thunk list */
DWORD unknown8; /* c0 Unknown (NT) */
LCID locale; /* c4 Locale to be queried by GetThreadLocale (NT) */
} PDB;
static PDB *current_process;
static UINT process_error_mode;
static HANDLE main_exe_file;
static DWORD shutdown_flags = 0;
@ -661,21 +611,13 @@ static BOOL process_init( char *argv[] )
BOOL ret;
size_t info_size = 0;
RTL_USER_PROCESS_PARAMETERS *params;
PEB *peb = NtCurrentTeb()->Peb;
HANDLE hstdin, hstdout, hstderr;
setbuf(stdout,NULL);
setbuf(stderr,NULL);
setlocale(LC_CTYPE,"");
/* Fill the initial process structure */
current_process = (PDB *)NtCurrentTeb()->Peb; /* FIXME: should be a PEB */
params = current_process->ProcessParameters;
current_process->threads = 1;
current_process->running_threads = 1;
current_process->ring0_threads = 1;
current_process->group = current_process;
current_process->priority = 8; /* Normal */
/* Setup the server connection */
wine_server_init_thread();
@ -698,10 +640,12 @@ static BOOL process_init( char *argv[] )
if (!ret) return FALSE;
/* Create the process heap */
current_process->heap = RtlCreateHeap( HEAP_GROWABLE, NULL, 0, 0, NULL, NULL );
peb->ProcessHeap = RtlCreateHeap( HEAP_GROWABLE, NULL, 0, 0, NULL, NULL );
if (info_size == 0)
{
params = peb->ProcessParameters;
/* This is wine specific: we have no parent (we're started from unix)
* so, create a simple console with bare handles to unix stdio
* input & output streams (aka simple console)
@ -723,7 +667,7 @@ static BOOL process_init( char *argv[] )
else
{
if (!(params = init_user_process_params( info_size ))) return FALSE;
current_process->ProcessParameters = params;
peb->ProcessParameters = params;
/* convert value from server:
* + 0 => INVALID_HANDLE_VALUE
@ -1942,8 +1886,8 @@ BOOL WINAPI GetExitCodeProcess(
*/
UINT WINAPI SetErrorMode( UINT mode )
{
UINT old = current_process->error_mode;
current_process->error_mode = mode;
UINT old = process_error_mode;
process_error_mode = mode;
return old;
}
@ -1959,25 +1903,14 @@ UINT WINAPI SetErrorMode( UINT mode )
*/
DWORD WINAPI TlsAlloc( void )
{
DWORD i, mask, ret = 0;
DWORD *bits = current_process->tls_bits;
DWORD index;
RtlAcquirePebLock();
if (*bits == 0xffffffff)
{
bits++;
ret = 32;
if (*bits == 0xffffffff)
{
RtlReleasePebLock();
SetLastError( ERROR_NO_MORE_ITEMS );
return 0xffffffff;
}
}
for (i = 0, mask = 1; i < 32; i++, mask <<= 1) if (!(*bits & mask)) break;
*bits |= mask;
index = RtlFindClearBitsAndSet( NtCurrentTeb()->Peb->TlsBitmap, 1, 0 );
if (index != ~0UL) NtCurrentTeb()->TlsSlots[index] = 0; /* clear the value */
else SetLastError( ERROR_NO_MORE_ITEMS );
RtlReleasePebLock();
NtCurrentTeb()->TlsSlots[ret+i] = 0; /* clear the value */
return ret + i;
return index;
}
@ -1993,23 +1926,16 @@ DWORD WINAPI TlsAlloc( void )
BOOL WINAPI TlsFree(
DWORD index) /* [in] TLS Index to free */
{
DWORD mask = (1 << (index & 31));
DWORD *bits = current_process->tls_bits;
if (index >= 64)
{
SetLastError( ERROR_INVALID_PARAMETER );
return FALSE;
}
if (index >= 32) bits++;
BOOL ret;
RtlAcquirePebLock();
if (!(*bits & mask)) /* already free? */
ret = RtlAreBitsSet( NtCurrentTeb()->Peb->TlsBitmap, index, 1 );
if (ret)
{
RtlReleasePebLock();
SetLastError( ERROR_INVALID_PARAMETER );
return FALSE;
RtlClearBits( NtCurrentTeb()->Peb->TlsBitmap, index, 1 );
NtSetInformationThread( GetCurrentThread(), ThreadZeroTlsCell, &index, sizeof(index) );
}
*bits &= ~mask;
NtSetInformationThread( GetCurrentThread(), ThreadZeroTlsCell, &index, sizeof(index) );
else SetLastError( ERROR_INVALID_PARAMETER );
RtlReleasePebLock();
return TRUE;
}
@ -2025,7 +1951,7 @@ BOOL WINAPI TlsFree(
LPVOID WINAPI TlsGetValue(
DWORD index) /* [in] TLS index to retrieve value for */
{
if (index >= 64)
if (index >= NtCurrentTeb()->Peb->TlsBitmap->SizeOfBitMap)
{
SetLastError( ERROR_INVALID_PARAMETER );
return NULL;
@ -2046,7 +1972,7 @@ BOOL WINAPI TlsSetValue(
DWORD index, /* [in] TLS index to set value for */
LPVOID value) /* [in] Value to be stored */
{
if (index >= 64)
if (index >= NtCurrentTeb()->Peb->TlsBitmap->SizeOfBitMap)
{
SetLastError( ERROR_INVALID_PARAMETER );
return FALSE;

5
dlls/ntdll/thread.c
View File

@ -44,6 +44,7 @@ DECL_GLOBAL_CONSTRUCTOR(thread_init)
static PEB peb;
static PEB_LDR_DATA ldr;
static RTL_USER_PROCESS_PARAMETERS params; /* default parameters if no parent */
static RTL_BITMAP tls_bitmap;
static struct debug_info info; /* debug info for initial thread */
if (teb.Tib.Self) return; /* do it only once */
@ -67,7 +68,9 @@ DECL_GLOBAL_CONSTRUCTOR(thread_init)
InitializeListHead( &teb.TlsLinks );
peb.ProcessParameters = &params;
peb.LdrData = &ldr;
peb.TlsBitmap = &tls_bitmap;
peb.LdrData = &ldr;
RtlInitializeBitMap( &tls_bitmap, (BYTE *)peb.TlsBitmapBits, sizeof(peb.TlsBitmapBits) * 8 );
InitializeListHead( &ldr.InLoadOrderModuleList );
InitializeListHead( &ldr.InMemoryOrderModuleList );
InitializeListHead( &ldr.InInitializationOrderModuleList );

33
include/winternl.h
View File

@ -81,6 +81,20 @@ typedef struct RTL_DRIVE_LETTER_CURDIR
UNICODE_STRING DosPath;
} RTL_DRIVE_LETTER_CURDIR, *PRTL_DRIVE_LETTER_CURDIR;
typedef struct tagRTL_BITMAP {
ULONG SizeOfBitMap; /* Number of bits in the bitmap */
LPBYTE BitMapBuffer; /* Bitmap data, assumed sized to a DWORD boundary */
} RTL_BITMAP, *PRTL_BITMAP;
typedef const RTL_BITMAP *PCRTL_BITMAP;
typedef struct tagRTL_BITMAP_RUN {
ULONG StartOfRun; /* Bit position at which run starts - FIXME: Name? */
ULONG SizeOfRun; /* Size of the run in bits - FIXME: Name? */
} RTL_BITMAP_RUN, *PRTL_BITMAP_RUN;
typedef const RTL_BITMAP_RUN *PCRTL_BITMAP_RUN;
typedef struct _RTL_USER_PROCESS_PARAMETERS
{
ULONG AllocationSize;
@ -140,7 +154,10 @@ typedef struct _PEB
RTL_USER_PROCESS_PARAMETERS *ProcessParameters; /* 10 */
PVOID __pad_14; /* 14 */
HANDLE ProcessHeap; /* 18 */
BYTE __pad_1c[204]; /* 1c */
BYTE __pad_1c[36]; /* 1c */
PRTL_BITMAP TlsBitmap; /* 40 */
ULONG TlsBitmapBits[2]; /* 44 */
BYTE __pad_4c[156]; /* 4c */
PVOID Reserved3[59]; /* e8 */
ULONG SessionId; /* 1d4 */
} PEB, *PPEB;
@ -652,20 +669,6 @@ typedef struct _RTL_HEAP_DEFINITION {
ULONG Unknown[11];
} RTL_HEAP_DEFINITION, *PRTL_HEAP_DEFINITION;
typedef struct tagRTL_BITMAP {
ULONG SizeOfBitMap; /* Number of bits in the bitmap */
LPBYTE BitMapBuffer; /* Bitmap data, assumed sized to a DWORD boundary */
} RTL_BITMAP, *PRTL_BITMAP;
typedef const RTL_BITMAP *PCRTL_BITMAP;
typedef struct tagRTL_BITMAP_RUN {
ULONG StartOfRun; /* Bit position at which run starts - FIXME: Name? */
ULONG SizeOfRun; /* Size of the run in bits - FIXME: Name? */
} RTL_BITMAP_RUN, *PRTL_BITMAP_RUN;
typedef const RTL_BITMAP_RUN *PCRTL_BITMAP_RUN;
typedef struct _RTL_RWLOCK {
RTL_CRITICAL_SECTION rtlCS;