690 lines
19 KiB
C
690 lines
19 KiB
C
/*
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* Win32 processes
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*
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* Copyright 1996 Alexandre Julliard
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*/
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#include <assert.h>
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#include <stdlib.h>
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#include <stdio.h>
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#include <string.h>
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#include "process.h"
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#include "file.h"
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#include "heap.h"
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#include "task.h"
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#include "winerror.h"
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PDB32 *pCurrentProcess = NULL;
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#define HTABLE_SIZE 0x30 /* Handle table initial size */
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#define HTABLE_INC 0x10 /* Handle table increment */
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#define BOOT_HTABLE_SIZE 5
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static HANDLE_ENTRY boot_handles[BOOT_HTABLE_SIZE];
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/***********************************************************************
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* PROCESS_AllocHandleTable
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*/
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static HANDLE_TABLE *PROCESS_AllocHandleTable( PDB32 *process )
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{
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HANDLE_TABLE *table = HeapAlloc( process->system_heap, HEAP_ZERO_MEMORY,
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sizeof(HANDLE_TABLE) +
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(HTABLE_SIZE-1) * sizeof(HANDLE_ENTRY) );
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if (!table) return NULL;
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table->count = HTABLE_SIZE;
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return table;
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}
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/***********************************************************************
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* PROCESS_GrowHandleTable
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*/
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static BOOL32 PROCESS_GrowHandleTable( PDB32 *process )
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{
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HANDLE_TABLE *table = process->handle_table;
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table = HeapReAlloc( process->system_heap, HEAP_ZERO_MEMORY, table,
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sizeof(HANDLE_TABLE) +
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(table->count+HTABLE_INC-1) * sizeof(HANDLE_ENTRY) );
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if (!table) return FALSE;
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table->count += HTABLE_INC;
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process->handle_table = table;
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return TRUE;
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}
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/***********************************************************************
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* PROCESS_AllocBootHandle
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*
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* Allocate a handle from the boot table.
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*/
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static HANDLE32 PROCESS_AllocBootHandle( K32OBJ *ptr, DWORD flags )
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{
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HANDLE32 h;
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for (h = 0; h < BOOT_HTABLE_SIZE; h++)
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if (!boot_handles[h].ptr) break;
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assert( h < BOOT_HTABLE_SIZE );
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K32OBJ_IncCount( ptr );
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boot_handles[h].flags = flags;
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boot_handles[h].ptr = ptr;
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return h + 1; /* Avoid handle 0 */
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}
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/***********************************************************************
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* PROCESS_CloseBootHandle
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*
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* Close a handle from the boot table.
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*/
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static BOOL32 PROCESS_CloseBootHandle( HANDLE32 handle )
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{
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HANDLE_ENTRY *entry = &boot_handles[handle - 1];
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assert( (handle > 0) && (handle <= BOOT_HTABLE_SIZE) );
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assert( entry->ptr );
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K32OBJ_DecCount( entry->ptr );
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entry->flags = 0;
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entry->ptr = NULL;
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return TRUE;
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}
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/***********************************************************************
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* PROCESS_GetBootObjPtr
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*
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* Get a handle ptr from the boot table.
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*/
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static K32OBJ *PROCESS_GetBootObjPtr( HANDLE32 handle, K32OBJ_TYPE type )
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{
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K32OBJ *ptr;
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assert( (handle > 0) && (handle <= BOOT_HTABLE_SIZE) );
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ptr = boot_handles[handle - 1].ptr;
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assert (ptr && (ptr->type == type));
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K32OBJ_IncCount( ptr );
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return ptr;
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}
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/***********************************************************************
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* PROCESS_SetBootObjPtr
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*
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* Set a handle ptr from the boot table.
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*/
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static BOOL32 PROCESS_SetBootObjPtr( HANDLE32 handle, K32OBJ *ptr, DWORD flags)
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{
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K32OBJ *old_ptr;
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assert( (handle > 0) && (handle <= BOOT_HTABLE_SIZE) );
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K32OBJ_IncCount( ptr );
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if ((old_ptr = boot_handles[handle - 1].ptr)) K32OBJ_DecCount( old_ptr );
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boot_handles[handle - 1].flags = flags;
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boot_handles[handle - 1].ptr = ptr;
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return TRUE;
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}
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/***********************************************************************
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* PROCESS_AllocHandle
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*
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* Allocate a handle for a kernel object and increment its refcount.
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*/
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HANDLE32 PROCESS_AllocHandle( K32OBJ *ptr, DWORD flags )
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{
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HANDLE32 h;
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HANDLE_ENTRY *entry;
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assert( ptr );
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if (!pCurrentProcess) return PROCESS_AllocBootHandle( ptr, flags );
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EnterCriticalSection( &pCurrentProcess->crit_section );
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K32OBJ_IncCount( ptr );
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entry = pCurrentProcess->handle_table->entries;
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for (h = 0; h < pCurrentProcess->handle_table->count; h++, entry++)
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if (!entry->ptr) break;
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if ((h < pCurrentProcess->handle_table->count) ||
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PROCESS_GrowHandleTable( pCurrentProcess ))
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{
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entry->flags = flags;
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entry->ptr = ptr;
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LeaveCriticalSection( &pCurrentProcess->crit_section );
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return h + 1; /* Avoid handle 0 */
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}
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LeaveCriticalSection( &pCurrentProcess->crit_section );
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SetLastError( ERROR_OUTOFMEMORY );
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K32OBJ_DecCount( ptr );
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return INVALID_HANDLE_VALUE32;
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}
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/***********************************************************************
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* PROCESS_GetObjPtr
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*
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* Retrieve a pointer to a kernel object and increments its reference count.
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* The refcount must be decremented when the pointer is no longer used.
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*/
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K32OBJ *PROCESS_GetObjPtr( HANDLE32 handle, K32OBJ_TYPE type )
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{
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K32OBJ *ptr = NULL;
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if (!pCurrentProcess) return PROCESS_GetBootObjPtr( handle, type );
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EnterCriticalSection( &pCurrentProcess->crit_section );
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if ((handle > 0) && (handle <= pCurrentProcess->handle_table->count))
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{
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ptr = pCurrentProcess->handle_table->entries[handle - 1].ptr;
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if (ptr && ((type == K32OBJ_UNKNOWN) || (ptr->type == type)))
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K32OBJ_IncCount( ptr );
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else ptr = NULL;
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}
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LeaveCriticalSection( &pCurrentProcess->crit_section );
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if (!ptr) SetLastError( ERROR_INVALID_HANDLE );
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return ptr;
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}
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/***********************************************************************
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* PROCESS_SetObjPtr
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*
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* Change the object pointer of a handle, and increment the refcount.
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* Use with caution!
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*/
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BOOL32 PROCESS_SetObjPtr( HANDLE32 handle, K32OBJ *ptr, DWORD flags )
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{
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BOOL32 ret = TRUE;
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K32OBJ *old_ptr = NULL;
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if (!pCurrentProcess) return PROCESS_SetBootObjPtr( handle, ptr, flags );
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EnterCriticalSection( &pCurrentProcess->crit_section );
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if ((handle > 0) && (handle <= pCurrentProcess->handle_table->count))
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{
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HANDLE_ENTRY*entry = &pCurrentProcess->handle_table->entries[handle-1];
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old_ptr = entry->ptr;
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K32OBJ_IncCount( ptr );
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entry->flags = flags;
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entry->ptr = ptr;
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}
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else
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{
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SetLastError( ERROR_INVALID_HANDLE );
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ret = FALSE;
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}
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LeaveCriticalSection( &pCurrentProcess->crit_section );
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if (old_ptr) K32OBJ_DecCount( old_ptr );
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return ret;
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}
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/*********************************************************************
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* CloseHandle (KERNEL32.23)
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*/
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BOOL32 CloseHandle( HANDLE32 handle )
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{
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BOOL32 ret = FALSE;
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K32OBJ *ptr = NULL;
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if (!pCurrentProcess) return PROCESS_CloseBootHandle( handle );
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EnterCriticalSection( &pCurrentProcess->crit_section );
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if ((handle > 0) && (handle <= pCurrentProcess->handle_table->count))
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{
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HANDLE_ENTRY*entry = &pCurrentProcess->handle_table->entries[handle-1];
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if ((ptr = entry->ptr))
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{
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entry->flags = 0;
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entry->ptr = NULL;
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ret = TRUE;
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}
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}
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LeaveCriticalSection( &pCurrentProcess->crit_section );
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if (!ret) SetLastError( ERROR_INVALID_HANDLE );
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if (ptr) K32OBJ_DecCount( ptr );
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return ret;
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}
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static int pstr_cmp( const void *ps1, const void *ps2 )
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{
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return lstrcmpi32A( *(LPSTR *)ps1, *(LPSTR *)ps2 );
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}
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/***********************************************************************
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* PROCESS_FillEnvDB
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*/
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static BOOL32 PROCESS_FillEnvDB( PDB32 *pdb, TDB *pTask )
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{
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LPSTR p, env;
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INT32 count = 0;
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LPSTR *pp, *array = NULL;
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/* Copy the Win16 environment, sorting it in the process */
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env = p = GlobalLock16( pTask->pdb.environment );
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for (p = env; *p; p += strlen(p) + 1) count++;
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pdb->env_db->env_size = (p - env) + 1;
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pdb->env_db->environ = HeapAlloc( pdb->heap, 0, pdb->env_db->env_size );
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if (!pdb->env_db->environ) goto error;
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if (!(array = HeapAlloc( pdb->heap, 0, count * sizeof(array[0]) )))
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goto error;
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for (p = env, pp = array; *p; p += strlen(p) + 1) *pp++ = p;
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qsort( array, count, sizeof(LPSTR), pstr_cmp );
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p = pdb->env_db->environ;
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for (pp = array; count; count--, pp++)
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{
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strcpy( p, *pp );
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p += strlen(p) + 1;
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}
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*p = '\0';
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HeapFree( pdb->heap, 0, array );
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array = NULL;
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return TRUE;
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error:
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if (array) HeapFree( pdb->heap, 0, array );
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if (pdb->env_db->environ) HeapFree( pdb->heap, 0, pdb->env_db->environ );
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return FALSE;
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}
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/***********************************************************************
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* PROCESS_Create
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*/
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PDB32 *PROCESS_Create( TDB *pTask )
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{
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PDB32 *pdb = HeapAlloc( SystemHeap, HEAP_ZERO_MEMORY, sizeof(PDB32) );
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if (!pdb) return NULL;
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pdb->header.type = K32OBJ_PROCESS;
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pdb->header.refcount = 1;
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pdb->exit_code = 0x103; /* STILL_ACTIVE */
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pdb->threads = 1;
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pdb->running_threads = 1;
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pdb->ring0_threads = 1;
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pdb->system_heap = SystemHeap;
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pdb->parent = pCurrentProcess;
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pdb->group = pdb;
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pdb->priority = 8; /* Normal */
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pdb->heap_list = pdb->heap;
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InitializeCriticalSection( &pdb->crit_section );
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if (!(pdb->heap = HeapCreate( HEAP_GROWABLE, 0x10000, 0 ))) goto error;
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if (!(pdb->env_db = HeapAlloc(pdb->heap, HEAP_ZERO_MEMORY, sizeof(ENVDB))))
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goto error;
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if (!(pdb->handle_table = PROCESS_AllocHandleTable( pdb ))) goto error;
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if (!PROCESS_FillEnvDB( pdb, pTask )) goto error;
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return pdb;
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error:
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if (pdb->env_db) HeapFree( pdb->heap, 0, pdb->env_db );
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if (pdb->handle_table) HeapFree( pdb->system_heap, 0, pdb->handle_table );
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if (pdb->heap) HeapDestroy( pdb->heap );
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DeleteCriticalSection( &pdb->crit_section );
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HeapFree( SystemHeap, 0, pdb );
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return NULL;
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}
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/***********************************************************************
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* PROCESS_Destroy
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*/
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void PROCESS_Destroy( K32OBJ *ptr )
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{
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PDB32 *pdb = (PDB32 *)ptr;
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HANDLE32 handle;
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assert( ptr->type == K32OBJ_PROCESS );
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/* Close all handles */
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for (handle = 0; handle < pdb->handle_table->count; handle++)
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if (pdb->handle_table->entries[handle].ptr) CloseHandle( handle );
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/* Free everything */
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ptr->type = K32OBJ_UNKNOWN;
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HeapFree( pdb->heap, 0, pdb->env_db );
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HeapFree( pdb->system_heap, 0, pdb->handle_table );
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HeapDestroy( pdb->heap );
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DeleteCriticalSection( &pdb->crit_section );
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HeapFree( SystemHeap, 0, pdb );
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}
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/***********************************************************************
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* ExitProcess (KERNEL32.100)
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*/
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void ExitProcess( DWORD status )
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{
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TASK_KillCurrentTask( status );
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}
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/***********************************************************************
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* GetCurrentProcess (KERNEL32.198)
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*/
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HANDLE32 GetCurrentProcess(void)
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{
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return 0x7fffffff;
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}
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/***********************************************************************
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* GetCurrentProcessId (KERNEL32.199)
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*/
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DWORD GetCurrentProcessId(void)
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{
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return (DWORD)pCurrentProcess;
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}
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/***********************************************************************
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* GetEnvironmentStrings32A (KERNEL32.210) (KERNEL32.211)
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*/
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LPSTR GetEnvironmentStrings32A(void)
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{
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assert( pCurrentProcess );
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return pCurrentProcess->env_db->environ;
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}
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/***********************************************************************
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* GetEnvironmentStrings32W (KERNEL32.212)
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*/
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LPWSTR GetEnvironmentStrings32W(void)
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{
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INT32 size;
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LPWSTR ret, pW;
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LPSTR pA;
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assert( pCurrentProcess );
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size = HeapSize( GetProcessHeap(), 0, pCurrentProcess->env_db->environ );
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if (!(ret = HeapAlloc( GetProcessHeap(), 0, size * sizeof(WCHAR) )))
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return NULL;
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pA = pCurrentProcess->env_db->environ;
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pW = ret;
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while (*pA)
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{
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lstrcpyAtoW( pW, pA );
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size = strlen(pA);
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pA += size + 1;
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pW += size + 1;
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}
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*pW = 0;
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return ret;
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}
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/***********************************************************************
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* FreeEnvironmentStrings32A (KERNEL32.141)
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*/
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BOOL32 FreeEnvironmentStrings32A( LPSTR ptr )
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{
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assert( pCurrentProcess );
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if (ptr != pCurrentProcess->env_db->environ)
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{
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SetLastError( ERROR_INVALID_PARAMETER );
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return FALSE;
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}
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return TRUE;
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}
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/***********************************************************************
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* FreeEnvironmentStrings32W (KERNEL32.142)
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*/
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BOOL32 FreeEnvironmentStrings32W( LPWSTR ptr )
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{
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assert( pCurrentProcess );
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return HeapFree( GetProcessHeap(), 0, ptr );
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}
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/***********************************************************************
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* GetEnvironmentVariable32A (KERNEL32.213)
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*/
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DWORD GetEnvironmentVariable32A( LPCSTR name, LPSTR value, DWORD size )
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{
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LPSTR p;
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INT32 len, res;
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assert( pCurrentProcess );
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p = pCurrentProcess->env_db->environ;
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if (!name || !*name)
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{
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SetLastError( ERROR_INVALID_PARAMETER );
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return 0;
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}
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len = strlen(name);
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while (*p)
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{
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res = lstrncmpi32A( name, p, len );
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if (res < 0) goto not_found;
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if (!res && (p[len] == '=')) break;
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p += strlen(p) + 1;
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}
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if (!*p) goto not_found;
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if (value) lstrcpyn32A( value, p + len + 1, size );
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return strlen(p);
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not_found:
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return 0; /* FIXME: SetLastError */
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}
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/***********************************************************************
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* GetEnvironmentVariable32W (KERNEL32.214)
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*/
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DWORD GetEnvironmentVariable32W( LPCWSTR nameW, LPWSTR valW, DWORD size )
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{
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LPSTR name = HEAP_strdupWtoA( GetProcessHeap(), 0, nameW );
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LPSTR val = HeapAlloc( GetProcessHeap(), 0, size );
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DWORD res = GetEnvironmentVariable32A( name, val, size );
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HeapFree( GetProcessHeap(), 0, name );
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if (valW) lstrcpynAtoW( valW, val, size );
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HeapFree( GetProcessHeap(), 0, val );
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return res;
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}
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/***********************************************************************
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* SetEnvironmentVariable32A (KERNEL32.484)
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*/
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BOOL32 SetEnvironmentVariable32A( LPCSTR name, LPCSTR value )
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{
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INT32 size, len, res;
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LPSTR p, env, new_env;
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assert( pCurrentProcess );
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env = p = pCurrentProcess->env_db->environ;
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/* Find a place to insert the string */
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res = -1;
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len = strlen(name);
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while (*p)
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{
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res = lstrncmpi32A( name, p, len );
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if (res < 0) break;
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if (!res && (p[len] == '=')) break;
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res = 1;
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p += strlen(p) + 1;
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}
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if (!value && res) /* Value to remove doesn't exist already */
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return FALSE;
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/* Realloc the buffer */
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len = value ? strlen(name) + strlen(value) + 2 : 0;
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if (!res) len -= strlen(p) + 1; /* The name already exists */
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size = pCurrentProcess->env_db->env_size + len;
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if (!(new_env = HeapReAlloc( GetProcessHeap(), 0, env, size )))
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return FALSE;
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p = new_env + (p - env);
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/* Set the new string */
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memmove( p + len, p, pCurrentProcess->env_db->env_size - (p-new_env) );
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if (value)
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{
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strcpy( p, name );
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strcat( p, "=" );
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strcat( p, value );
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}
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pCurrentProcess->env_db->env_size = size;
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pCurrentProcess->env_db->environ = new_env;
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return TRUE;
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}
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/***********************************************************************
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* SetEnvironmentVariable32W (KERNEL32.485)
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*/
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BOOL32 SetEnvironmentVariable32W( LPCWSTR name, LPCWSTR value )
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{
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LPSTR nameA = HEAP_strdupWtoA( GetProcessHeap(), 0, name );
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LPSTR valueA = HEAP_strdupWtoA( GetProcessHeap(), 0, value );
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BOOL32 ret = SetEnvironmentVariable32A( nameA, valueA );
|
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HeapFree( GetProcessHeap(), 0, nameA );
|
|
HeapFree( GetProcessHeap(), 0, valueA );
|
|
return ret;
|
|
}
|
|
|
|
|
|
/***********************************************************************
|
|
* GetProcessHeap (KERNEL32.259)
|
|
*/
|
|
HANDLE32 GetProcessHeap(void)
|
|
{
|
|
if (!pCurrentProcess) return SystemHeap; /* For the boot-up code */
|
|
return pCurrentProcess->heap;
|
|
}
|
|
|
|
|
|
/***********************************************************************
|
|
* GetThreadLocale (KERNEL32.295)
|
|
*/
|
|
LCID GetThreadLocale(void)
|
|
{
|
|
return pCurrentProcess->locale;
|
|
}
|
|
|
|
|
|
/***********************************************************************
|
|
* SetPriorityClass (KERNEL32.503)
|
|
*/
|
|
BOOL32 SetPriorityClass( HANDLE32 hprocess, DWORD priorityclass )
|
|
{
|
|
PDB32 *pdb;
|
|
|
|
pdb = (PDB32*)PROCESS_GetObjPtr(hprocess,K32OBJ_PROCESS);
|
|
if (!pdb) return FALSE;
|
|
switch (priorityclass)
|
|
{
|
|
case NORMAL_PRIORITY_CLASS:
|
|
pdb->priority = 0x00000008;
|
|
break;
|
|
case IDLE_PRIORITY_CLASS:
|
|
pdb->priority = 0x00000004;
|
|
break;
|
|
case HIGH_PRIORITY_CLASS:
|
|
pdb->priority = 0x0000000d;
|
|
break;
|
|
case REALTIME_PRIORITY_CLASS:
|
|
pdb->priority = 0x00000018;
|
|
break;
|
|
default:
|
|
fprintf(stderr,"SetPriorityClass: unknown priority class %ld\n",priorityclass);
|
|
break;
|
|
}
|
|
K32OBJ_DecCount((K32OBJ*)pdb);
|
|
return TRUE;
|
|
}
|
|
|
|
|
|
/***********************************************************************
|
|
* GetPriorityClass (KERNEL32.250)
|
|
*/
|
|
DWORD GetPriorityClass(HANDLE32 hprocess)
|
|
{
|
|
PDB32 *pdb;
|
|
DWORD ret;
|
|
|
|
pdb = (PDB32*)PROCESS_GetObjPtr(hprocess,K32OBJ_PROCESS);
|
|
ret = 0;
|
|
if (pdb)
|
|
{
|
|
switch (pdb->priority)
|
|
{
|
|
case 0x00000008:
|
|
ret = NORMAL_PRIORITY_CLASS;
|
|
break;
|
|
case 0x00000004:
|
|
ret = IDLE_PRIORITY_CLASS;
|
|
break;
|
|
case 0x0000000d:
|
|
ret = HIGH_PRIORITY_CLASS;
|
|
break;
|
|
case 0x00000018:
|
|
ret = REALTIME_PRIORITY_CLASS;
|
|
break;
|
|
default:
|
|
fprintf(stderr,"GetPriorityClass: unknown priority %ld\n",pdb->priority);
|
|
}
|
|
K32OBJ_DecCount((K32OBJ*)pdb);
|
|
}
|
|
return ret;
|
|
}
|
|
|
|
|
|
/***********************************************************************
|
|
* GetStdHandle (KERNEL32.276)
|
|
*
|
|
* FIXME: These should be allocated when a console is created, or inherited
|
|
* from the parent.
|
|
*/
|
|
HANDLE32 GetStdHandle( DWORD std_handle )
|
|
{
|
|
HFILE32 hFile;
|
|
int fd;
|
|
|
|
assert( pCurrentProcess );
|
|
switch(std_handle)
|
|
{
|
|
case STD_INPUT_HANDLE:
|
|
if (pCurrentProcess->env_db->hStdin)
|
|
return pCurrentProcess->env_db->hStdin;
|
|
fd = 0;
|
|
break;
|
|
case STD_OUTPUT_HANDLE:
|
|
if (pCurrentProcess->env_db->hStdout)
|
|
return pCurrentProcess->env_db->hStdout;
|
|
fd = 1;
|
|
break;
|
|
case STD_ERROR_HANDLE:
|
|
if (pCurrentProcess->env_db->hStderr)
|
|
return pCurrentProcess->env_db->hStderr;
|
|
fd = 2;
|
|
break;
|
|
default:
|
|
SetLastError( ERROR_INVALID_PARAMETER );
|
|
return INVALID_HANDLE_VALUE32;
|
|
}
|
|
hFile = FILE_DupUnixHandle( fd );
|
|
if (hFile != HFILE_ERROR32) FILE_SetFileType( hFile, FILE_TYPE_CHAR );
|
|
return hFile;
|
|
}
|
|
|
|
|
|
/***********************************************************************
|
|
* SetStdHandle (KERNEL32.506)
|
|
*/
|
|
BOOL32 SetStdHandle( DWORD std_handle, HANDLE32 handle )
|
|
{
|
|
assert( pCurrentProcess );
|
|
switch(std_handle)
|
|
{
|
|
case STD_INPUT_HANDLE:
|
|
pCurrentProcess->env_db->hStdin = handle;
|
|
return TRUE;
|
|
case STD_OUTPUT_HANDLE:
|
|
pCurrentProcess->env_db->hStdout = handle;
|
|
return TRUE;
|
|
case STD_ERROR_HANDLE:
|
|
pCurrentProcess->env_db->hStderr = handle;
|
|
return TRUE;
|
|
}
|
|
SetLastError( ERROR_INVALID_PARAMETER );
|
|
return FALSE;
|
|
}
|