1888 lines
63 KiB
C
1888 lines
63 KiB
C
/*
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* Process synchronisation
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*
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* Copyright 1996, 1997, 1998 Marcus Meissner
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* Copyright 1997, 1999 Alexandre Julliard
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* Copyright 1999, 2000 Juergen Schmied
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* Copyright 2003 Eric Pouech
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Lesser General Public
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* License as published by the Free Software Foundation; either
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* version 2.1 of the License, or (at your option) any later version.
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*
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* This library is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public
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* License along with this library; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA
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*/
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#include "config.h"
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#include "wine/port.h"
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#include <assert.h>
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#include <errno.h>
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#include <signal.h>
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#ifdef HAVE_SYS_TIME_H
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# include <sys/time.h>
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#endif
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#ifdef HAVE_POLL_H
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#include <poll.h>
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#endif
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#ifdef HAVE_SYS_POLL_H
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# include <sys/poll.h>
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#endif
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#ifdef HAVE_UNISTD_H
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# include <unistd.h>
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#endif
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#ifdef HAVE_SCHED_H
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# include <sched.h>
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#endif
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#include <string.h>
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#include <stdarg.h>
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#include <stdio.h>
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#include <stdlib.h>
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#include <time.h>
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#include "ntstatus.h"
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#define WIN32_NO_STATUS
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#define NONAMELESSUNION
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#include "windef.h"
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#include "winternl.h"
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#include "wine/server.h"
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#include "wine/debug.h"
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#include "ntdll_misc.h"
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WINE_DEFAULT_DEBUG_CHANNEL(ntdll);
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HANDLE keyed_event = NULL;
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static inline int interlocked_dec_if_nonzero( int *dest )
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{
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int val, tmp;
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for (val = *dest;; val = tmp)
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{
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if (!val || (tmp = interlocked_cmpxchg( dest, val - 1, val )) == val)
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break;
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}
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return val;
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}
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/* creates a struct security_descriptor and contained information in one contiguous piece of memory */
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NTSTATUS NTDLL_create_struct_sd(PSECURITY_DESCRIPTOR nt_sd, struct security_descriptor **server_sd,
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data_size_t *server_sd_len)
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{
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unsigned int len;
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PSID owner, group;
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ACL *dacl, *sacl;
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BOOLEAN owner_present, group_present, dacl_present, sacl_present;
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BOOLEAN defaulted;
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NTSTATUS status;
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unsigned char *ptr;
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if (!nt_sd)
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{
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*server_sd = NULL;
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*server_sd_len = 0;
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return STATUS_SUCCESS;
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}
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len = sizeof(struct security_descriptor);
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status = RtlGetOwnerSecurityDescriptor(nt_sd, &owner, &owner_present);
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if (status != STATUS_SUCCESS) return status;
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status = RtlGetGroupSecurityDescriptor(nt_sd, &group, &group_present);
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if (status != STATUS_SUCCESS) return status;
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status = RtlGetSaclSecurityDescriptor(nt_sd, &sacl_present, &sacl, &defaulted);
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if (status != STATUS_SUCCESS) return status;
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status = RtlGetDaclSecurityDescriptor(nt_sd, &dacl_present, &dacl, &defaulted);
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if (status != STATUS_SUCCESS) return status;
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if (owner_present)
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len += RtlLengthSid(owner);
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if (group_present)
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len += RtlLengthSid(group);
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if (sacl_present && sacl)
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len += sacl->AclSize;
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if (dacl_present && dacl)
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len += dacl->AclSize;
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/* fix alignment for the Unicode name that follows the structure */
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len = (len + sizeof(WCHAR) - 1) & ~(sizeof(WCHAR) - 1);
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*server_sd = RtlAllocateHeap(GetProcessHeap(), 0, len);
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if (!*server_sd) return STATUS_NO_MEMORY;
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(*server_sd)->control = ((SECURITY_DESCRIPTOR *)nt_sd)->Control & ~SE_SELF_RELATIVE;
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(*server_sd)->owner_len = owner_present ? RtlLengthSid(owner) : 0;
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(*server_sd)->group_len = group_present ? RtlLengthSid(group) : 0;
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(*server_sd)->sacl_len = (sacl_present && sacl) ? sacl->AclSize : 0;
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(*server_sd)->dacl_len = (dacl_present && dacl) ? dacl->AclSize : 0;
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ptr = (unsigned char *)(*server_sd + 1);
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memcpy(ptr, owner, (*server_sd)->owner_len);
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ptr += (*server_sd)->owner_len;
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memcpy(ptr, group, (*server_sd)->group_len);
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ptr += (*server_sd)->group_len;
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memcpy(ptr, sacl, (*server_sd)->sacl_len);
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ptr += (*server_sd)->sacl_len;
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memcpy(ptr, dacl, (*server_sd)->dacl_len);
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*server_sd_len = len;
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return STATUS_SUCCESS;
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}
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/* frees a struct security_descriptor allocated by NTDLL_create_struct_sd */
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void NTDLL_free_struct_sd(struct security_descriptor *server_sd)
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{
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RtlFreeHeap(GetProcessHeap(), 0, server_sd);
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}
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/*
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* Semaphores
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*/
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/******************************************************************************
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* NtCreateSemaphore (NTDLL.@)
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*/
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NTSTATUS WINAPI NtCreateSemaphore( OUT PHANDLE SemaphoreHandle,
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IN ACCESS_MASK access,
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IN const OBJECT_ATTRIBUTES *attr OPTIONAL,
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IN LONG InitialCount,
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IN LONG MaximumCount )
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{
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DWORD len = attr && attr->ObjectName ? attr->ObjectName->Length : 0;
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NTSTATUS ret;
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struct object_attributes objattr;
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struct security_descriptor *sd = NULL;
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if (MaximumCount <= 0 || InitialCount < 0 || InitialCount > MaximumCount)
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return STATUS_INVALID_PARAMETER;
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if (len >= MAX_PATH * sizeof(WCHAR)) return STATUS_NAME_TOO_LONG;
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objattr.rootdir = wine_server_obj_handle( attr ? attr->RootDirectory : 0 );
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objattr.sd_len = 0;
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objattr.name_len = len;
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if (attr)
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{
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ret = NTDLL_create_struct_sd( attr->SecurityDescriptor, &sd, &objattr.sd_len );
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if (ret != STATUS_SUCCESS) return ret;
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}
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SERVER_START_REQ( create_semaphore )
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{
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req->access = access;
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req->attributes = (attr) ? attr->Attributes : 0;
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req->initial = InitialCount;
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req->max = MaximumCount;
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wine_server_add_data( req, &objattr, sizeof(objattr) );
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if (objattr.sd_len) wine_server_add_data( req, sd, objattr.sd_len );
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if (len) wine_server_add_data( req, attr->ObjectName->Buffer, len );
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ret = wine_server_call( req );
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*SemaphoreHandle = wine_server_ptr_handle( reply->handle );
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}
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SERVER_END_REQ;
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NTDLL_free_struct_sd( sd );
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return ret;
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}
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/******************************************************************************
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* NtOpenSemaphore (NTDLL.@)
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*/
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NTSTATUS WINAPI NtOpenSemaphore( OUT PHANDLE SemaphoreHandle,
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IN ACCESS_MASK access,
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IN const OBJECT_ATTRIBUTES *attr )
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{
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DWORD len = attr && attr->ObjectName ? attr->ObjectName->Length : 0;
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NTSTATUS ret;
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if (len >= MAX_PATH * sizeof(WCHAR)) return STATUS_NAME_TOO_LONG;
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SERVER_START_REQ( open_semaphore )
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{
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req->access = access;
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req->attributes = (attr) ? attr->Attributes : 0;
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req->rootdir = wine_server_obj_handle( attr ? attr->RootDirectory : 0 );
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if (len) wine_server_add_data( req, attr->ObjectName->Buffer, len );
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ret = wine_server_call( req );
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*SemaphoreHandle = wine_server_ptr_handle( reply->handle );
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}
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SERVER_END_REQ;
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return ret;
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}
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/******************************************************************************
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* NtQuerySemaphore (NTDLL.@)
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*/
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NTSTATUS WINAPI NtQuerySemaphore( HANDLE handle, SEMAPHORE_INFORMATION_CLASS class,
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void *info, ULONG len, ULONG *ret_len )
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{
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NTSTATUS ret;
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SEMAPHORE_BASIC_INFORMATION *out = info;
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if (class != SemaphoreBasicInformation)
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{
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FIXME("(%p,%d,%u) Unknown class\n", handle, class, len);
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return STATUS_INVALID_INFO_CLASS;
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}
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if (len != sizeof(SEMAPHORE_BASIC_INFORMATION)) return STATUS_INFO_LENGTH_MISMATCH;
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SERVER_START_REQ( query_semaphore )
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{
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req->handle = wine_server_obj_handle( handle );
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if (!(ret = wine_server_call( req )))
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{
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out->CurrentCount = reply->current;
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out->MaximumCount = reply->max;
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if (ret_len) *ret_len = sizeof(SEMAPHORE_BASIC_INFORMATION);
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}
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}
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SERVER_END_REQ;
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return ret;
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}
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/******************************************************************************
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* NtReleaseSemaphore (NTDLL.@)
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*/
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NTSTATUS WINAPI NtReleaseSemaphore( HANDLE handle, ULONG count, PULONG previous )
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{
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NTSTATUS ret;
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SERVER_START_REQ( release_semaphore )
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{
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req->handle = wine_server_obj_handle( handle );
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req->count = count;
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if (!(ret = wine_server_call( req )))
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{
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if (previous) *previous = reply->prev_count;
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}
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}
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SERVER_END_REQ;
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return ret;
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}
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/*
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* Events
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*/
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/**************************************************************************
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* NtCreateEvent (NTDLL.@)
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* ZwCreateEvent (NTDLL.@)
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*/
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NTSTATUS WINAPI NtCreateEvent( PHANDLE EventHandle, ACCESS_MASK DesiredAccess,
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const OBJECT_ATTRIBUTES *attr, EVENT_TYPE type, BOOLEAN InitialState)
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{
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DWORD len = attr && attr->ObjectName ? attr->ObjectName->Length : 0;
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NTSTATUS ret;
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struct security_descriptor *sd = NULL;
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struct object_attributes objattr;
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if (len >= MAX_PATH * sizeof(WCHAR)) return STATUS_NAME_TOO_LONG;
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objattr.rootdir = wine_server_obj_handle( attr ? attr->RootDirectory : 0 );
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objattr.sd_len = 0;
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objattr.name_len = len;
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if (attr)
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{
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ret = NTDLL_create_struct_sd( attr->SecurityDescriptor, &sd, &objattr.sd_len );
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if (ret != STATUS_SUCCESS) return ret;
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}
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SERVER_START_REQ( create_event )
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{
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req->access = DesiredAccess;
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req->attributes = (attr) ? attr->Attributes : 0;
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req->manual_reset = (type == NotificationEvent);
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req->initial_state = InitialState;
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wine_server_add_data( req, &objattr, sizeof(objattr) );
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if (objattr.sd_len) wine_server_add_data( req, sd, objattr.sd_len );
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if (len) wine_server_add_data( req, attr->ObjectName->Buffer, len );
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ret = wine_server_call( req );
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*EventHandle = wine_server_ptr_handle( reply->handle );
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}
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SERVER_END_REQ;
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NTDLL_free_struct_sd( sd );
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return ret;
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}
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/******************************************************************************
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* NtOpenEvent (NTDLL.@)
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* ZwOpenEvent (NTDLL.@)
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*/
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NTSTATUS WINAPI NtOpenEvent(
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OUT PHANDLE EventHandle,
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IN ACCESS_MASK DesiredAccess,
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IN const OBJECT_ATTRIBUTES *attr )
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{
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DWORD len = attr && attr->ObjectName ? attr->ObjectName->Length : 0;
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NTSTATUS ret;
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if (len >= MAX_PATH * sizeof(WCHAR)) return STATUS_NAME_TOO_LONG;
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SERVER_START_REQ( open_event )
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{
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req->access = DesiredAccess;
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req->attributes = (attr) ? attr->Attributes : 0;
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req->rootdir = wine_server_obj_handle( attr ? attr->RootDirectory : 0 );
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if (len) wine_server_add_data( req, attr->ObjectName->Buffer, len );
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ret = wine_server_call( req );
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*EventHandle = wine_server_ptr_handle( reply->handle );
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}
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SERVER_END_REQ;
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return ret;
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}
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|
|
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/******************************************************************************
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* NtSetEvent (NTDLL.@)
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* ZwSetEvent (NTDLL.@)
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*/
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NTSTATUS WINAPI NtSetEvent( HANDLE handle, PULONG NumberOfThreadsReleased )
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{
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NTSTATUS ret;
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/* FIXME: set NumberOfThreadsReleased */
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SERVER_START_REQ( event_op )
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{
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req->handle = wine_server_obj_handle( handle );
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req->op = SET_EVENT;
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ret = wine_server_call( req );
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}
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SERVER_END_REQ;
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return ret;
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}
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|
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/******************************************************************************
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* NtResetEvent (NTDLL.@)
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*/
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NTSTATUS WINAPI NtResetEvent( HANDLE handle, PULONG NumberOfThreadsReleased )
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{
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NTSTATUS ret;
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|
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/* resetting an event can't release any thread... */
|
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if (NumberOfThreadsReleased) *NumberOfThreadsReleased = 0;
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SERVER_START_REQ( event_op )
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{
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req->handle = wine_server_obj_handle( handle );
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req->op = RESET_EVENT;
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ret = wine_server_call( req );
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}
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SERVER_END_REQ;
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return ret;
|
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}
|
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|
|
/******************************************************************************
|
|
* NtClearEvent (NTDLL.@)
|
|
*
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* FIXME
|
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* same as NtResetEvent ???
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*/
|
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NTSTATUS WINAPI NtClearEvent ( HANDLE handle )
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{
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return NtResetEvent( handle, NULL );
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|
}
|
|
|
|
/******************************************************************************
|
|
* NtPulseEvent (NTDLL.@)
|
|
*
|
|
* FIXME
|
|
* PulseCount
|
|
*/
|
|
NTSTATUS WINAPI NtPulseEvent( HANDLE handle, PULONG PulseCount )
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{
|
|
NTSTATUS ret;
|
|
|
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if (PulseCount)
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FIXME("(%p,%d)\n", handle, *PulseCount);
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|
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SERVER_START_REQ( event_op )
|
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{
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|
req->handle = wine_server_obj_handle( handle );
|
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req->op = PULSE_EVENT;
|
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ret = wine_server_call( req );
|
|
}
|
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SERVER_END_REQ;
|
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return ret;
|
|
}
|
|
|
|
/******************************************************************************
|
|
* NtQueryEvent (NTDLL.@)
|
|
*/
|
|
NTSTATUS WINAPI NtQueryEvent( HANDLE handle, EVENT_INFORMATION_CLASS class,
|
|
void *info, ULONG len, ULONG *ret_len )
|
|
{
|
|
NTSTATUS ret;
|
|
EVENT_BASIC_INFORMATION *out = info;
|
|
|
|
if (class != EventBasicInformation)
|
|
{
|
|
FIXME("(%p, %d, %d) Unknown class\n",
|
|
handle, class, len);
|
|
return STATUS_INVALID_INFO_CLASS;
|
|
}
|
|
|
|
if (len != sizeof(EVENT_BASIC_INFORMATION)) return STATUS_INFO_LENGTH_MISMATCH;
|
|
|
|
SERVER_START_REQ( query_event )
|
|
{
|
|
req->handle = wine_server_obj_handle( handle );
|
|
if (!(ret = wine_server_call( req )))
|
|
{
|
|
out->EventType = reply->manual_reset ? NotificationEvent : SynchronizationEvent;
|
|
out->EventState = reply->state;
|
|
if (ret_len) *ret_len = sizeof(EVENT_BASIC_INFORMATION);
|
|
}
|
|
}
|
|
SERVER_END_REQ;
|
|
|
|
return ret;
|
|
}
|
|
|
|
/*
|
|
* Mutants (known as Mutexes in Kernel32)
|
|
*/
|
|
|
|
/******************************************************************************
|
|
* NtCreateMutant [NTDLL.@]
|
|
* ZwCreateMutant [NTDLL.@]
|
|
*/
|
|
NTSTATUS WINAPI NtCreateMutant(OUT HANDLE* MutantHandle,
|
|
IN ACCESS_MASK access,
|
|
IN const OBJECT_ATTRIBUTES* attr OPTIONAL,
|
|
IN BOOLEAN InitialOwner)
|
|
{
|
|
NTSTATUS status;
|
|
DWORD len = attr && attr->ObjectName ? attr->ObjectName->Length : 0;
|
|
struct security_descriptor *sd = NULL;
|
|
struct object_attributes objattr;
|
|
|
|
if (len >= MAX_PATH * sizeof(WCHAR)) return STATUS_NAME_TOO_LONG;
|
|
|
|
objattr.rootdir = wine_server_obj_handle( attr ? attr->RootDirectory : 0 );
|
|
objattr.sd_len = 0;
|
|
objattr.name_len = len;
|
|
if (attr)
|
|
{
|
|
status = NTDLL_create_struct_sd( attr->SecurityDescriptor, &sd, &objattr.sd_len );
|
|
if (status != STATUS_SUCCESS) return status;
|
|
}
|
|
|
|
SERVER_START_REQ( create_mutex )
|
|
{
|
|
req->access = access;
|
|
req->attributes = (attr) ? attr->Attributes : 0;
|
|
req->owned = InitialOwner;
|
|
wine_server_add_data( req, &objattr, sizeof(objattr) );
|
|
if (objattr.sd_len) wine_server_add_data( req, sd, objattr.sd_len );
|
|
if (len) wine_server_add_data( req, attr->ObjectName->Buffer, len );
|
|
status = wine_server_call( req );
|
|
*MutantHandle = wine_server_ptr_handle( reply->handle );
|
|
}
|
|
SERVER_END_REQ;
|
|
|
|
NTDLL_free_struct_sd( sd );
|
|
|
|
return status;
|
|
}
|
|
|
|
/**************************************************************************
|
|
* NtOpenMutant [NTDLL.@]
|
|
* ZwOpenMutant [NTDLL.@]
|
|
*/
|
|
NTSTATUS WINAPI NtOpenMutant(OUT HANDLE* MutantHandle,
|
|
IN ACCESS_MASK access,
|
|
IN const OBJECT_ATTRIBUTES* attr )
|
|
{
|
|
NTSTATUS status;
|
|
DWORD len = attr && attr->ObjectName ? attr->ObjectName->Length : 0;
|
|
|
|
if (len >= MAX_PATH * sizeof(WCHAR)) return STATUS_NAME_TOO_LONG;
|
|
|
|
SERVER_START_REQ( open_mutex )
|
|
{
|
|
req->access = access;
|
|
req->attributes = (attr) ? attr->Attributes : 0;
|
|
req->rootdir = wine_server_obj_handle( attr ? attr->RootDirectory : 0 );
|
|
if (len) wine_server_add_data( req, attr->ObjectName->Buffer, len );
|
|
status = wine_server_call( req );
|
|
*MutantHandle = wine_server_ptr_handle( reply->handle );
|
|
}
|
|
SERVER_END_REQ;
|
|
return status;
|
|
}
|
|
|
|
/**************************************************************************
|
|
* NtReleaseMutant [NTDLL.@]
|
|
* ZwReleaseMutant [NTDLL.@]
|
|
*/
|
|
NTSTATUS WINAPI NtReleaseMutant( IN HANDLE handle, OUT PLONG prev_count OPTIONAL)
|
|
{
|
|
NTSTATUS status;
|
|
|
|
SERVER_START_REQ( release_mutex )
|
|
{
|
|
req->handle = wine_server_obj_handle( handle );
|
|
status = wine_server_call( req );
|
|
if (prev_count) *prev_count = reply->prev_count;
|
|
}
|
|
SERVER_END_REQ;
|
|
return status;
|
|
}
|
|
|
|
/******************************************************************
|
|
* NtQueryMutant [NTDLL.@]
|
|
* ZwQueryMutant [NTDLL.@]
|
|
*/
|
|
NTSTATUS WINAPI NtQueryMutant(IN HANDLE handle,
|
|
IN MUTANT_INFORMATION_CLASS MutantInformationClass,
|
|
OUT PVOID MutantInformation,
|
|
IN ULONG MutantInformationLength,
|
|
OUT PULONG ResultLength OPTIONAL )
|
|
{
|
|
FIXME("(%p %u %p %u %p): stub!\n",
|
|
handle, MutantInformationClass, MutantInformation, MutantInformationLength, ResultLength);
|
|
return STATUS_NOT_IMPLEMENTED;
|
|
}
|
|
|
|
/*
|
|
* Jobs
|
|
*/
|
|
|
|
/******************************************************************************
|
|
* NtCreateJobObject [NTDLL.@]
|
|
* ZwCreateJobObject [NTDLL.@]
|
|
*/
|
|
NTSTATUS WINAPI NtCreateJobObject( PHANDLE handle, ACCESS_MASK access, const OBJECT_ATTRIBUTES *attr )
|
|
{
|
|
DWORD len = attr && attr->ObjectName ? attr->ObjectName->Length : 0;
|
|
NTSTATUS ret;
|
|
struct security_descriptor *sd = NULL;
|
|
struct object_attributes objattr;
|
|
|
|
if (len >= MAX_PATH * sizeof(WCHAR)) return STATUS_NAME_TOO_LONG;
|
|
|
|
objattr.rootdir = wine_server_obj_handle( attr ? attr->RootDirectory : 0 );
|
|
objattr.sd_len = 0;
|
|
objattr.name_len = len;
|
|
if (attr)
|
|
{
|
|
ret = NTDLL_create_struct_sd( attr->SecurityDescriptor, &sd, &objattr.sd_len );
|
|
if (ret != STATUS_SUCCESS) return ret;
|
|
}
|
|
|
|
SERVER_START_REQ( create_job )
|
|
{
|
|
req->access = access;
|
|
req->attributes = attr ? attr->Attributes : 0;
|
|
wine_server_add_data( req, &objattr, sizeof(objattr) );
|
|
if (objattr.sd_len) wine_server_add_data( req, sd, objattr.sd_len );
|
|
if (len) wine_server_add_data( req, attr->ObjectName->Buffer, len );
|
|
ret = wine_server_call( req );
|
|
*handle = wine_server_ptr_handle( reply->handle );
|
|
}
|
|
SERVER_END_REQ;
|
|
|
|
NTDLL_free_struct_sd( sd );
|
|
return ret;
|
|
}
|
|
|
|
/******************************************************************************
|
|
* NtOpenJobObject [NTDLL.@]
|
|
* ZwOpenJobObject [NTDLL.@]
|
|
*/
|
|
NTSTATUS WINAPI NtOpenJobObject( PHANDLE handle, ACCESS_MASK access, const OBJECT_ATTRIBUTES *attr )
|
|
{
|
|
FIXME( "stub: %p %x %s\n", handle, access, attr ? debugstr_us(attr->ObjectName) : "" );
|
|
return STATUS_NOT_IMPLEMENTED;
|
|
}
|
|
|
|
/******************************************************************************
|
|
* NtTerminateJobObject [NTDLL.@]
|
|
* ZwTerminateJobObject [NTDLL.@]
|
|
*/
|
|
NTSTATUS WINAPI NtTerminateJobObject( HANDLE handle, NTSTATUS status )
|
|
{
|
|
NTSTATUS ret;
|
|
|
|
TRACE( "(%p, %d)\n", handle, status );
|
|
|
|
SERVER_START_REQ( terminate_job )
|
|
{
|
|
req->handle = wine_server_obj_handle( handle );
|
|
req->status = status;
|
|
ret = wine_server_call( req );
|
|
}
|
|
SERVER_END_REQ;
|
|
|
|
return ret;
|
|
}
|
|
|
|
/******************************************************************************
|
|
* NtQueryInformationJobObject [NTDLL.@]
|
|
* ZwQueryInformationJobObject [NTDLL.@]
|
|
*/
|
|
NTSTATUS WINAPI NtQueryInformationJobObject( HANDLE handle, JOBOBJECTINFOCLASS class, PVOID info,
|
|
ULONG len, PULONG ret_len )
|
|
{
|
|
FIXME( "stub: %p %u %p %u %p\n", handle, class, info, len, ret_len );
|
|
|
|
if (class >= MaxJobObjectInfoClass)
|
|
return STATUS_INVALID_PARAMETER;
|
|
|
|
switch (class)
|
|
{
|
|
case JobObjectExtendedLimitInformation:
|
|
{
|
|
JOBOBJECT_EXTENDED_LIMIT_INFORMATION *extended_limit;
|
|
if (len < sizeof(*extended_limit))
|
|
return STATUS_INFO_LENGTH_MISMATCH;
|
|
|
|
extended_limit = (JOBOBJECT_EXTENDED_LIMIT_INFORMATION *)info;
|
|
memset(extended_limit, 0, sizeof(*extended_limit));
|
|
if (ret_len) *ret_len = sizeof(*extended_limit);
|
|
return STATUS_SUCCESS;
|
|
}
|
|
|
|
case JobObjectBasicLimitInformation:
|
|
{
|
|
JOBOBJECT_BASIC_LIMIT_INFORMATION *basic_limit;
|
|
if (len < sizeof(*basic_limit))
|
|
return STATUS_INFO_LENGTH_MISMATCH;
|
|
|
|
basic_limit = (JOBOBJECT_BASIC_LIMIT_INFORMATION *)info;
|
|
memset(basic_limit, 0, sizeof(*basic_limit));
|
|
if (ret_len) *ret_len = sizeof(*basic_limit);
|
|
return STATUS_SUCCESS;
|
|
}
|
|
|
|
default:
|
|
return STATUS_NOT_IMPLEMENTED;
|
|
}
|
|
}
|
|
|
|
/******************************************************************************
|
|
* NtSetInformationJobObject [NTDLL.@]
|
|
* ZwSetInformationJobObject [NTDLL.@]
|
|
*/
|
|
NTSTATUS WINAPI NtSetInformationJobObject( HANDLE handle, JOBOBJECTINFOCLASS class, PVOID info, ULONG len )
|
|
{
|
|
NTSTATUS status = STATUS_NOT_IMPLEMENTED;
|
|
JOBOBJECT_BASIC_LIMIT_INFORMATION *basic_limit;
|
|
ULONG info_size = sizeof(JOBOBJECT_BASIC_LIMIT_INFORMATION);
|
|
DWORD limit_flags = JOB_OBJECT_BASIC_LIMIT_VALID_FLAGS;
|
|
|
|
TRACE( "(%p, %u, %p, %u)\n", handle, class, info, len );
|
|
|
|
if (class >= MaxJobObjectInfoClass)
|
|
return STATUS_INVALID_PARAMETER;
|
|
|
|
switch (class)
|
|
{
|
|
|
|
case JobObjectExtendedLimitInformation:
|
|
info_size = sizeof(JOBOBJECT_EXTENDED_LIMIT_INFORMATION);
|
|
limit_flags = JOB_OBJECT_EXTENDED_LIMIT_VALID_FLAGS;
|
|
/* fallthrough */
|
|
case JobObjectBasicLimitInformation:
|
|
if (len != info_size)
|
|
return STATUS_INVALID_PARAMETER;
|
|
|
|
basic_limit = info;
|
|
if (basic_limit->LimitFlags & ~limit_flags)
|
|
return STATUS_INVALID_PARAMETER;
|
|
|
|
SERVER_START_REQ( set_job_limits )
|
|
{
|
|
req->handle = wine_server_obj_handle( handle );
|
|
req->limit_flags = basic_limit->LimitFlags;
|
|
status = wine_server_call( req );
|
|
}
|
|
SERVER_END_REQ;
|
|
break;
|
|
|
|
case JobObjectAssociateCompletionPortInformation:
|
|
if (len != sizeof(JOBOBJECT_ASSOCIATE_COMPLETION_PORT))
|
|
return STATUS_INVALID_PARAMETER;
|
|
|
|
SERVER_START_REQ( set_job_completion_port )
|
|
{
|
|
JOBOBJECT_ASSOCIATE_COMPLETION_PORT *port_info = info;
|
|
req->job = wine_server_obj_handle( handle );
|
|
req->port = wine_server_obj_handle( port_info->CompletionPort );
|
|
req->key = wine_server_client_ptr( port_info->CompletionKey );
|
|
status = wine_server_call(req);
|
|
}
|
|
SERVER_END_REQ;
|
|
break;
|
|
|
|
case JobObjectBasicUIRestrictions:
|
|
status = STATUS_SUCCESS;
|
|
/* fallthrough */
|
|
default:
|
|
FIXME( "stub: %p %u %p %u\n", handle, class, info, len );
|
|
}
|
|
|
|
return status;
|
|
}
|
|
|
|
/******************************************************************************
|
|
* NtIsProcessInJob [NTDLL.@]
|
|
* ZwIsProcessInJob [NTDLL.@]
|
|
*/
|
|
NTSTATUS WINAPI NtIsProcessInJob( HANDLE process, HANDLE job )
|
|
{
|
|
NTSTATUS status;
|
|
|
|
TRACE( "(%p %p)\n", job, process );
|
|
|
|
SERVER_START_REQ( process_in_job )
|
|
{
|
|
req->job = wine_server_obj_handle( job );
|
|
req->process = wine_server_obj_handle( process );
|
|
status = wine_server_call( req );
|
|
}
|
|
SERVER_END_REQ;
|
|
|
|
return status;
|
|
}
|
|
|
|
/******************************************************************************
|
|
* NtAssignProcessToJobObject [NTDLL.@]
|
|
* ZwAssignProcessToJobObject [NTDLL.@]
|
|
*/
|
|
NTSTATUS WINAPI NtAssignProcessToJobObject( HANDLE job, HANDLE process )
|
|
{
|
|
NTSTATUS status;
|
|
|
|
TRACE( "(%p %p)\n", job, process );
|
|
|
|
SERVER_START_REQ( assign_job )
|
|
{
|
|
req->job = wine_server_obj_handle( job );
|
|
req->process = wine_server_obj_handle( process );
|
|
status = wine_server_call( req );
|
|
}
|
|
SERVER_END_REQ;
|
|
|
|
return status;
|
|
}
|
|
|
|
/*
|
|
* Timers
|
|
*/
|
|
|
|
/**************************************************************************
|
|
* NtCreateTimer [NTDLL.@]
|
|
* ZwCreateTimer [NTDLL.@]
|
|
*/
|
|
NTSTATUS WINAPI NtCreateTimer(OUT HANDLE *handle,
|
|
IN ACCESS_MASK access,
|
|
IN const OBJECT_ATTRIBUTES *attr OPTIONAL,
|
|
IN TIMER_TYPE timer_type)
|
|
{
|
|
DWORD len = (attr && attr->ObjectName) ? attr->ObjectName->Length : 0;
|
|
NTSTATUS status;
|
|
|
|
if (len >= MAX_PATH * sizeof(WCHAR)) return STATUS_NAME_TOO_LONG;
|
|
|
|
if (timer_type != NotificationTimer && timer_type != SynchronizationTimer)
|
|
return STATUS_INVALID_PARAMETER;
|
|
|
|
SERVER_START_REQ( create_timer )
|
|
{
|
|
req->access = access;
|
|
req->attributes = (attr) ? attr->Attributes : 0;
|
|
req->rootdir = wine_server_obj_handle( attr ? attr->RootDirectory : 0 );
|
|
req->manual = (timer_type == NotificationTimer);
|
|
if (len) wine_server_add_data( req, attr->ObjectName->Buffer, len );
|
|
status = wine_server_call( req );
|
|
*handle = wine_server_ptr_handle( reply->handle );
|
|
}
|
|
SERVER_END_REQ;
|
|
return status;
|
|
|
|
}
|
|
|
|
/**************************************************************************
|
|
* NtOpenTimer [NTDLL.@]
|
|
* ZwOpenTimer [NTDLL.@]
|
|
*/
|
|
NTSTATUS WINAPI NtOpenTimer(OUT PHANDLE handle,
|
|
IN ACCESS_MASK access,
|
|
IN const OBJECT_ATTRIBUTES* attr )
|
|
{
|
|
DWORD len = (attr && attr->ObjectName) ? attr->ObjectName->Length : 0;
|
|
NTSTATUS status;
|
|
|
|
if (len >= MAX_PATH * sizeof(WCHAR)) return STATUS_NAME_TOO_LONG;
|
|
|
|
SERVER_START_REQ( open_timer )
|
|
{
|
|
req->access = access;
|
|
req->attributes = (attr) ? attr->Attributes : 0;
|
|
req->rootdir = wine_server_obj_handle( attr ? attr->RootDirectory : 0 );
|
|
if (len) wine_server_add_data( req, attr->ObjectName->Buffer, len );
|
|
status = wine_server_call( req );
|
|
*handle = wine_server_ptr_handle( reply->handle );
|
|
}
|
|
SERVER_END_REQ;
|
|
return status;
|
|
}
|
|
|
|
/**************************************************************************
|
|
* NtSetTimer [NTDLL.@]
|
|
* ZwSetTimer [NTDLL.@]
|
|
*/
|
|
NTSTATUS WINAPI NtSetTimer(IN HANDLE handle,
|
|
IN const LARGE_INTEGER* when,
|
|
IN PTIMER_APC_ROUTINE callback,
|
|
IN PVOID callback_arg,
|
|
IN BOOLEAN resume,
|
|
IN ULONG period OPTIONAL,
|
|
OUT PBOOLEAN state OPTIONAL)
|
|
{
|
|
NTSTATUS status = STATUS_SUCCESS;
|
|
|
|
TRACE("(%p,%p,%p,%p,%08x,0x%08x,%p) stub\n",
|
|
handle, when, callback, callback_arg, resume, period, state);
|
|
|
|
SERVER_START_REQ( set_timer )
|
|
{
|
|
req->handle = wine_server_obj_handle( handle );
|
|
req->period = period;
|
|
req->expire = when->QuadPart;
|
|
req->callback = wine_server_client_ptr( callback );
|
|
req->arg = wine_server_client_ptr( callback_arg );
|
|
status = wine_server_call( req );
|
|
if (state) *state = reply->signaled;
|
|
}
|
|
SERVER_END_REQ;
|
|
|
|
/* set error but can still succeed */
|
|
if (resume && status == STATUS_SUCCESS) return STATUS_TIMER_RESUME_IGNORED;
|
|
return status;
|
|
}
|
|
|
|
/**************************************************************************
|
|
* NtCancelTimer [NTDLL.@]
|
|
* ZwCancelTimer [NTDLL.@]
|
|
*/
|
|
NTSTATUS WINAPI NtCancelTimer(IN HANDLE handle, OUT BOOLEAN* state)
|
|
{
|
|
NTSTATUS status;
|
|
|
|
SERVER_START_REQ( cancel_timer )
|
|
{
|
|
req->handle = wine_server_obj_handle( handle );
|
|
status = wine_server_call( req );
|
|
if (state) *state = reply->signaled;
|
|
}
|
|
SERVER_END_REQ;
|
|
return status;
|
|
}
|
|
|
|
/******************************************************************************
|
|
* NtQueryTimer (NTDLL.@)
|
|
*
|
|
* Retrieves information about a timer.
|
|
*
|
|
* PARAMS
|
|
* TimerHandle [I] The timer to retrieve information about.
|
|
* TimerInformationClass [I] The type of information to retrieve.
|
|
* TimerInformation [O] Pointer to buffer to store information in.
|
|
* Length [I] The length of the buffer pointed to by TimerInformation.
|
|
* ReturnLength [O] Optional. The size of buffer actually used.
|
|
*
|
|
* RETURNS
|
|
* Success: STATUS_SUCCESS
|
|
* Failure: STATUS_INFO_LENGTH_MISMATCH, if Length doesn't match the required data
|
|
* size for the class specified.
|
|
* STATUS_INVALID_INFO_CLASS, if an invalid TimerInformationClass was specified.
|
|
* STATUS_ACCESS_DENIED, if TimerHandle does not have TIMER_QUERY_STATE access
|
|
* to the timer.
|
|
*/
|
|
NTSTATUS WINAPI NtQueryTimer(
|
|
HANDLE TimerHandle,
|
|
TIMER_INFORMATION_CLASS TimerInformationClass,
|
|
PVOID TimerInformation,
|
|
ULONG Length,
|
|
PULONG ReturnLength)
|
|
{
|
|
TIMER_BASIC_INFORMATION * basic_info = TimerInformation;
|
|
NTSTATUS status;
|
|
LARGE_INTEGER now;
|
|
|
|
TRACE("(%p,%d,%p,0x%08x,%p)\n", TimerHandle, TimerInformationClass,
|
|
TimerInformation, Length, ReturnLength);
|
|
|
|
switch (TimerInformationClass)
|
|
{
|
|
case TimerBasicInformation:
|
|
if (Length < sizeof(TIMER_BASIC_INFORMATION))
|
|
return STATUS_INFO_LENGTH_MISMATCH;
|
|
|
|
SERVER_START_REQ(get_timer_info)
|
|
{
|
|
req->handle = wine_server_obj_handle( TimerHandle );
|
|
status = wine_server_call(req);
|
|
|
|
/* convert server time to absolute NTDLL time */
|
|
basic_info->RemainingTime.QuadPart = reply->when;
|
|
basic_info->TimerState = reply->signaled;
|
|
}
|
|
SERVER_END_REQ;
|
|
|
|
/* convert from absolute into relative time */
|
|
NtQuerySystemTime(&now);
|
|
if (now.QuadPart > basic_info->RemainingTime.QuadPart)
|
|
basic_info->RemainingTime.QuadPart = 0;
|
|
else
|
|
basic_info->RemainingTime.QuadPart -= now.QuadPart;
|
|
|
|
if (ReturnLength) *ReturnLength = sizeof(TIMER_BASIC_INFORMATION);
|
|
|
|
return status;
|
|
}
|
|
|
|
FIXME("Unhandled class %d\n", TimerInformationClass);
|
|
return STATUS_INVALID_INFO_CLASS;
|
|
}
|
|
|
|
|
|
/******************************************************************************
|
|
* NtQueryTimerResolution [NTDLL.@]
|
|
*/
|
|
NTSTATUS WINAPI NtQueryTimerResolution(OUT ULONG* min_resolution,
|
|
OUT ULONG* max_resolution,
|
|
OUT ULONG* current_resolution)
|
|
{
|
|
FIXME("(%p,%p,%p), stub!\n",
|
|
min_resolution, max_resolution, current_resolution);
|
|
|
|
return STATUS_NOT_IMPLEMENTED;
|
|
}
|
|
|
|
/******************************************************************************
|
|
* NtSetTimerResolution [NTDLL.@]
|
|
*/
|
|
NTSTATUS WINAPI NtSetTimerResolution(IN ULONG resolution,
|
|
IN BOOLEAN set_resolution,
|
|
OUT ULONG* current_resolution )
|
|
{
|
|
FIXME("(%u,%u,%p), stub!\n",
|
|
resolution, set_resolution, current_resolution);
|
|
|
|
return STATUS_NOT_IMPLEMENTED;
|
|
}
|
|
|
|
|
|
|
|
/* wait operations */
|
|
|
|
/******************************************************************
|
|
* NtWaitForMultipleObjects (NTDLL.@)
|
|
*/
|
|
NTSTATUS WINAPI NtWaitForMultipleObjects( DWORD count, const HANDLE *handles,
|
|
BOOLEAN wait_any, BOOLEAN alertable,
|
|
const LARGE_INTEGER *timeout )
|
|
{
|
|
select_op_t select_op;
|
|
UINT i, flags = SELECT_INTERRUPTIBLE;
|
|
|
|
if (!count || count > MAXIMUM_WAIT_OBJECTS) return STATUS_INVALID_PARAMETER_1;
|
|
|
|
if (alertable) flags |= SELECT_ALERTABLE;
|
|
select_op.wait.op = wait_any ? SELECT_WAIT : SELECT_WAIT_ALL;
|
|
for (i = 0; i < count; i++) select_op.wait.handles[i] = wine_server_obj_handle( handles[i] );
|
|
return server_select( &select_op, offsetof( select_op_t, wait.handles[count] ), flags, timeout );
|
|
}
|
|
|
|
|
|
/******************************************************************
|
|
* NtWaitForSingleObject (NTDLL.@)
|
|
*/
|
|
NTSTATUS WINAPI NtWaitForSingleObject(HANDLE handle, BOOLEAN alertable, const LARGE_INTEGER *timeout )
|
|
{
|
|
return NtWaitForMultipleObjects( 1, &handle, FALSE, alertable, timeout );
|
|
}
|
|
|
|
|
|
/******************************************************************
|
|
* NtSignalAndWaitForSingleObject (NTDLL.@)
|
|
*/
|
|
NTSTATUS WINAPI NtSignalAndWaitForSingleObject( HANDLE hSignalObject, HANDLE hWaitObject,
|
|
BOOLEAN alertable, const LARGE_INTEGER *timeout )
|
|
{
|
|
select_op_t select_op;
|
|
UINT flags = SELECT_INTERRUPTIBLE;
|
|
|
|
if (!hSignalObject) return STATUS_INVALID_HANDLE;
|
|
|
|
if (alertable) flags |= SELECT_ALERTABLE;
|
|
select_op.signal_and_wait.op = SELECT_SIGNAL_AND_WAIT;
|
|
select_op.signal_and_wait.wait = wine_server_obj_handle( hWaitObject );
|
|
select_op.signal_and_wait.signal = wine_server_obj_handle( hSignalObject );
|
|
return server_select( &select_op, sizeof(select_op.signal_and_wait), flags, timeout );
|
|
}
|
|
|
|
|
|
/******************************************************************
|
|
* NtYieldExecution (NTDLL.@)
|
|
*/
|
|
NTSTATUS WINAPI NtYieldExecution(void)
|
|
{
|
|
#ifdef HAVE_SCHED_YIELD
|
|
sched_yield();
|
|
return STATUS_SUCCESS;
|
|
#else
|
|
return STATUS_NO_YIELD_PERFORMED;
|
|
#endif
|
|
}
|
|
|
|
|
|
/******************************************************************
|
|
* NtDelayExecution (NTDLL.@)
|
|
*/
|
|
NTSTATUS WINAPI NtDelayExecution( BOOLEAN alertable, const LARGE_INTEGER *timeout )
|
|
{
|
|
/* if alertable, we need to query the server */
|
|
if (alertable)
|
|
return server_select( NULL, 0, SELECT_INTERRUPTIBLE | SELECT_ALERTABLE, timeout );
|
|
|
|
if (!timeout || timeout->QuadPart == TIMEOUT_INFINITE) /* sleep forever */
|
|
{
|
|
for (;;) select( 0, NULL, NULL, NULL, NULL );
|
|
}
|
|
else
|
|
{
|
|
LARGE_INTEGER now;
|
|
timeout_t when, diff;
|
|
|
|
if ((when = timeout->QuadPart) < 0)
|
|
{
|
|
NtQuerySystemTime( &now );
|
|
when = now.QuadPart - when;
|
|
}
|
|
|
|
/* Note that we yield after establishing the desired timeout */
|
|
NtYieldExecution();
|
|
if (!when) return STATUS_SUCCESS;
|
|
|
|
for (;;)
|
|
{
|
|
struct timeval tv;
|
|
NtQuerySystemTime( &now );
|
|
diff = (when - now.QuadPart + 9) / 10;
|
|
if (diff <= 0) break;
|
|
tv.tv_sec = diff / 1000000;
|
|
tv.tv_usec = diff % 1000000;
|
|
if (select( 0, NULL, NULL, NULL, &tv ) != -1) break;
|
|
}
|
|
}
|
|
return STATUS_SUCCESS;
|
|
}
|
|
|
|
|
|
/******************************************************************************
|
|
* NtCreateKeyedEvent (NTDLL.@)
|
|
*/
|
|
NTSTATUS WINAPI NtCreateKeyedEvent( HANDLE *handle, ACCESS_MASK access,
|
|
const OBJECT_ATTRIBUTES *attr, ULONG flags )
|
|
{
|
|
DWORD len = attr && attr->ObjectName ? attr->ObjectName->Length : 0;
|
|
NTSTATUS ret;
|
|
struct security_descriptor *sd = NULL;
|
|
struct object_attributes objattr;
|
|
|
|
if (len >= MAX_PATH * sizeof(WCHAR)) return STATUS_NAME_TOO_LONG;
|
|
|
|
objattr.rootdir = wine_server_obj_handle( attr ? attr->RootDirectory : 0 );
|
|
objattr.sd_len = 0;
|
|
objattr.name_len = len;
|
|
if (attr)
|
|
{
|
|
ret = NTDLL_create_struct_sd( attr->SecurityDescriptor, &sd, &objattr.sd_len );
|
|
if (ret != STATUS_SUCCESS) return ret;
|
|
}
|
|
|
|
SERVER_START_REQ( create_keyed_event )
|
|
{
|
|
req->access = access;
|
|
req->attributes = attr ? attr->Attributes : 0;
|
|
wine_server_add_data( req, &objattr, sizeof(objattr) );
|
|
if (objattr.sd_len) wine_server_add_data( req, sd, objattr.sd_len );
|
|
if (len) wine_server_add_data( req, attr->ObjectName->Buffer, len );
|
|
ret = wine_server_call( req );
|
|
*handle = wine_server_ptr_handle( reply->handle );
|
|
}
|
|
SERVER_END_REQ;
|
|
|
|
NTDLL_free_struct_sd( sd );
|
|
return ret;
|
|
}
|
|
|
|
/******************************************************************************
|
|
* NtOpenKeyedEvent (NTDLL.@)
|
|
*/
|
|
NTSTATUS WINAPI NtOpenKeyedEvent( HANDLE *handle, ACCESS_MASK access, const OBJECT_ATTRIBUTES *attr )
|
|
{
|
|
DWORD len = attr && attr->ObjectName ? attr->ObjectName->Length : 0;
|
|
NTSTATUS ret;
|
|
|
|
if (len >= MAX_PATH * sizeof(WCHAR)) return STATUS_NAME_TOO_LONG;
|
|
|
|
SERVER_START_REQ( open_keyed_event )
|
|
{
|
|
req->access = access;
|
|
req->attributes = attr ? attr->Attributes : 0;
|
|
req->rootdir = wine_server_obj_handle( attr ? attr->RootDirectory : 0 );
|
|
if (len) wine_server_add_data( req, attr->ObjectName->Buffer, len );
|
|
ret = wine_server_call( req );
|
|
*handle = wine_server_ptr_handle( reply->handle );
|
|
}
|
|
SERVER_END_REQ;
|
|
return ret;
|
|
}
|
|
|
|
/******************************************************************************
|
|
* NtWaitForKeyedEvent (NTDLL.@)
|
|
*/
|
|
NTSTATUS WINAPI NtWaitForKeyedEvent( HANDLE handle, const void *key,
|
|
BOOLEAN alertable, const LARGE_INTEGER *timeout )
|
|
{
|
|
select_op_t select_op;
|
|
UINT flags = SELECT_INTERRUPTIBLE;
|
|
|
|
if ((ULONG_PTR)key & 1) return STATUS_INVALID_PARAMETER_1;
|
|
if (alertable) flags |= SELECT_ALERTABLE;
|
|
select_op.keyed_event.op = SELECT_KEYED_EVENT_WAIT;
|
|
select_op.keyed_event.handle = wine_server_obj_handle( handle );
|
|
select_op.keyed_event.key = wine_server_client_ptr( key );
|
|
return server_select( &select_op, sizeof(select_op.keyed_event), flags, timeout );
|
|
}
|
|
|
|
/******************************************************************************
|
|
* NtReleaseKeyedEvent (NTDLL.@)
|
|
*/
|
|
NTSTATUS WINAPI NtReleaseKeyedEvent( HANDLE handle, const void *key,
|
|
BOOLEAN alertable, const LARGE_INTEGER *timeout )
|
|
{
|
|
select_op_t select_op;
|
|
UINT flags = SELECT_INTERRUPTIBLE;
|
|
|
|
if ((ULONG_PTR)key & 1) return STATUS_INVALID_PARAMETER_1;
|
|
if (alertable) flags |= SELECT_ALERTABLE;
|
|
select_op.keyed_event.op = SELECT_KEYED_EVENT_RELEASE;
|
|
select_op.keyed_event.handle = wine_server_obj_handle( handle );
|
|
select_op.keyed_event.key = wine_server_client_ptr( key );
|
|
return server_select( &select_op, sizeof(select_op.keyed_event), flags, timeout );
|
|
}
|
|
|
|
/******************************************************************
|
|
* NtCreateIoCompletion (NTDLL.@)
|
|
* ZwCreateIoCompletion (NTDLL.@)
|
|
*
|
|
* Creates I/O completion object.
|
|
*
|
|
* PARAMS
|
|
* CompletionPort [O] created completion object handle will be placed there
|
|
* DesiredAccess [I] desired access to a handle (combination of IO_COMPLETION_*)
|
|
* ObjectAttributes [I] completion object attributes
|
|
* NumberOfConcurrentThreads [I] desired number of concurrent active worker threads
|
|
*
|
|
*/
|
|
NTSTATUS WINAPI NtCreateIoCompletion( PHANDLE CompletionPort, ACCESS_MASK DesiredAccess,
|
|
POBJECT_ATTRIBUTES ObjectAttributes, ULONG NumberOfConcurrentThreads )
|
|
{
|
|
NTSTATUS status;
|
|
|
|
TRACE("(%p, %x, %p, %d)\n", CompletionPort, DesiredAccess,
|
|
ObjectAttributes, NumberOfConcurrentThreads);
|
|
|
|
if (!CompletionPort)
|
|
return STATUS_INVALID_PARAMETER;
|
|
|
|
SERVER_START_REQ( create_completion )
|
|
{
|
|
req->access = DesiredAccess;
|
|
req->attributes = ObjectAttributes ? ObjectAttributes->Attributes : 0;
|
|
req->rootdir = wine_server_obj_handle( ObjectAttributes ? ObjectAttributes->RootDirectory : 0 );
|
|
req->concurrent = NumberOfConcurrentThreads;
|
|
if (ObjectAttributes && ObjectAttributes->ObjectName)
|
|
wine_server_add_data( req, ObjectAttributes->ObjectName->Buffer,
|
|
ObjectAttributes->ObjectName->Length );
|
|
if (!(status = wine_server_call( req )))
|
|
*CompletionPort = wine_server_ptr_handle( reply->handle );
|
|
}
|
|
SERVER_END_REQ;
|
|
return status;
|
|
}
|
|
|
|
/******************************************************************
|
|
* NtSetIoCompletion (NTDLL.@)
|
|
* ZwSetIoCompletion (NTDLL.@)
|
|
*
|
|
* Inserts completion message into queue
|
|
*
|
|
* PARAMS
|
|
* CompletionPort [I] HANDLE to completion object
|
|
* CompletionKey [I] completion key
|
|
* CompletionValue [I] completion value (usually pointer to OVERLAPPED)
|
|
* Status [I] operation status
|
|
* NumberOfBytesTransferred [I] number of bytes transferred
|
|
*/
|
|
NTSTATUS WINAPI NtSetIoCompletion( HANDLE CompletionPort, ULONG_PTR CompletionKey,
|
|
ULONG_PTR CompletionValue, NTSTATUS Status,
|
|
SIZE_T NumberOfBytesTransferred )
|
|
{
|
|
NTSTATUS status;
|
|
|
|
TRACE("(%p, %lx, %lx, %x, %lx)\n", CompletionPort, CompletionKey,
|
|
CompletionValue, Status, NumberOfBytesTransferred);
|
|
|
|
SERVER_START_REQ( add_completion )
|
|
{
|
|
req->handle = wine_server_obj_handle( CompletionPort );
|
|
req->ckey = CompletionKey;
|
|
req->cvalue = CompletionValue;
|
|
req->status = Status;
|
|
req->information = NumberOfBytesTransferred;
|
|
status = wine_server_call( req );
|
|
}
|
|
SERVER_END_REQ;
|
|
return status;
|
|
}
|
|
|
|
/******************************************************************
|
|
* NtRemoveIoCompletion (NTDLL.@)
|
|
* ZwRemoveIoCompletion (NTDLL.@)
|
|
*
|
|
* (Wait for and) retrieve first completion message from completion object's queue
|
|
*
|
|
* PARAMS
|
|
* CompletionPort [I] HANDLE to I/O completion object
|
|
* CompletionKey [O] completion key
|
|
* CompletionValue [O] Completion value given in NtSetIoCompletion or in async operation
|
|
* iosb [O] IO_STATUS_BLOCK of completed asynchronous operation
|
|
* WaitTime [I] optional wait time in NTDLL format
|
|
*
|
|
*/
|
|
NTSTATUS WINAPI NtRemoveIoCompletion( HANDLE CompletionPort, PULONG_PTR CompletionKey,
|
|
PULONG_PTR CompletionValue, PIO_STATUS_BLOCK iosb,
|
|
PLARGE_INTEGER WaitTime )
|
|
{
|
|
NTSTATUS status;
|
|
|
|
TRACE("(%p, %p, %p, %p, %p)\n", CompletionPort, CompletionKey,
|
|
CompletionValue, iosb, WaitTime);
|
|
|
|
for(;;)
|
|
{
|
|
SERVER_START_REQ( remove_completion )
|
|
{
|
|
req->handle = wine_server_obj_handle( CompletionPort );
|
|
if (!(status = wine_server_call( req )))
|
|
{
|
|
*CompletionKey = reply->ckey;
|
|
*CompletionValue = reply->cvalue;
|
|
iosb->Information = reply->information;
|
|
iosb->u.Status = reply->status;
|
|
}
|
|
}
|
|
SERVER_END_REQ;
|
|
if (status != STATUS_PENDING) break;
|
|
|
|
status = NtWaitForSingleObject( CompletionPort, FALSE, WaitTime );
|
|
if (status != WAIT_OBJECT_0) break;
|
|
}
|
|
return status;
|
|
}
|
|
|
|
/******************************************************************
|
|
* NtOpenIoCompletion (NTDLL.@)
|
|
* ZwOpenIoCompletion (NTDLL.@)
|
|
*
|
|
* Opens I/O completion object
|
|
*
|
|
* PARAMS
|
|
* CompletionPort [O] completion object handle will be placed there
|
|
* DesiredAccess [I] desired access to a handle (combination of IO_COMPLETION_*)
|
|
* ObjectAttributes [I] completion object name
|
|
*
|
|
*/
|
|
NTSTATUS WINAPI NtOpenIoCompletion( PHANDLE CompletionPort, ACCESS_MASK DesiredAccess,
|
|
POBJECT_ATTRIBUTES ObjectAttributes )
|
|
{
|
|
NTSTATUS status;
|
|
|
|
TRACE("(%p, 0x%x, %p)\n", CompletionPort, DesiredAccess, ObjectAttributes);
|
|
|
|
if (!CompletionPort || !ObjectAttributes || !ObjectAttributes->ObjectName)
|
|
return STATUS_INVALID_PARAMETER;
|
|
|
|
SERVER_START_REQ( open_completion )
|
|
{
|
|
req->access = DesiredAccess;
|
|
req->rootdir = wine_server_obj_handle( ObjectAttributes->RootDirectory );
|
|
wine_server_add_data( req, ObjectAttributes->ObjectName->Buffer,
|
|
ObjectAttributes->ObjectName->Length );
|
|
if (!(status = wine_server_call( req )))
|
|
*CompletionPort = wine_server_ptr_handle( reply->handle );
|
|
}
|
|
SERVER_END_REQ;
|
|
return status;
|
|
}
|
|
|
|
/******************************************************************
|
|
* NtQueryIoCompletion (NTDLL.@)
|
|
* ZwQueryIoCompletion (NTDLL.@)
|
|
*
|
|
* Requests information about given I/O completion object
|
|
*
|
|
* PARAMS
|
|
* CompletionPort [I] HANDLE to completion port to request
|
|
* InformationClass [I] information class
|
|
* CompletionInformation [O] user-provided buffer for data
|
|
* BufferLength [I] buffer length
|
|
* RequiredLength [O] required buffer length
|
|
*
|
|
*/
|
|
NTSTATUS WINAPI NtQueryIoCompletion( HANDLE CompletionPort, IO_COMPLETION_INFORMATION_CLASS InformationClass,
|
|
PVOID CompletionInformation, ULONG BufferLength, PULONG RequiredLength )
|
|
{
|
|
NTSTATUS status;
|
|
|
|
TRACE("(%p, %d, %p, 0x%x, %p)\n", CompletionPort, InformationClass, CompletionInformation,
|
|
BufferLength, RequiredLength);
|
|
|
|
if (!CompletionInformation) return STATUS_INVALID_PARAMETER;
|
|
switch( InformationClass )
|
|
{
|
|
case IoCompletionBasicInformation:
|
|
{
|
|
ULONG *info = CompletionInformation;
|
|
|
|
if (RequiredLength) *RequiredLength = sizeof(*info);
|
|
if (BufferLength != sizeof(*info))
|
|
status = STATUS_INFO_LENGTH_MISMATCH;
|
|
else
|
|
{
|
|
SERVER_START_REQ( query_completion )
|
|
{
|
|
req->handle = wine_server_obj_handle( CompletionPort );
|
|
if (!(status = wine_server_call( req )))
|
|
*info = reply->depth;
|
|
}
|
|
SERVER_END_REQ;
|
|
}
|
|
}
|
|
break;
|
|
default:
|
|
status = STATUS_INVALID_PARAMETER;
|
|
break;
|
|
}
|
|
return status;
|
|
}
|
|
|
|
NTSTATUS NTDLL_AddCompletion( HANDLE hFile, ULONG_PTR CompletionValue,
|
|
NTSTATUS CompletionStatus, ULONG Information )
|
|
{
|
|
NTSTATUS status;
|
|
|
|
SERVER_START_REQ( add_fd_completion )
|
|
{
|
|
req->handle = wine_server_obj_handle( hFile );
|
|
req->cvalue = CompletionValue;
|
|
req->status = CompletionStatus;
|
|
req->information = Information;
|
|
status = wine_server_call( req );
|
|
}
|
|
SERVER_END_REQ;
|
|
return status;
|
|
}
|
|
|
|
/******************************************************************
|
|
* RtlRunOnceInitialize (NTDLL.@)
|
|
*/
|
|
void WINAPI RtlRunOnceInitialize( RTL_RUN_ONCE *once )
|
|
{
|
|
once->Ptr = NULL;
|
|
}
|
|
|
|
/******************************************************************
|
|
* RtlRunOnceBeginInitialize (NTDLL.@)
|
|
*/
|
|
DWORD WINAPI RtlRunOnceBeginInitialize( RTL_RUN_ONCE *once, ULONG flags, void **context )
|
|
{
|
|
if (flags & RTL_RUN_ONCE_CHECK_ONLY)
|
|
{
|
|
ULONG_PTR val = (ULONG_PTR)once->Ptr;
|
|
|
|
if (flags & RTL_RUN_ONCE_ASYNC) return STATUS_INVALID_PARAMETER;
|
|
if ((val & 3) != 2) return STATUS_UNSUCCESSFUL;
|
|
if (context) *context = (void *)(val & ~3);
|
|
return STATUS_SUCCESS;
|
|
}
|
|
|
|
for (;;)
|
|
{
|
|
ULONG_PTR next, val = (ULONG_PTR)once->Ptr;
|
|
|
|
switch (val & 3)
|
|
{
|
|
case 0: /* first time */
|
|
if (!interlocked_cmpxchg_ptr( &once->Ptr,
|
|
(flags & RTL_RUN_ONCE_ASYNC) ? (void *)3 : (void *)1, 0 ))
|
|
return STATUS_PENDING;
|
|
break;
|
|
|
|
case 1: /* in progress, wait */
|
|
if (flags & RTL_RUN_ONCE_ASYNC) return STATUS_INVALID_PARAMETER;
|
|
next = val & ~3;
|
|
if (interlocked_cmpxchg_ptr( &once->Ptr, (void *)((ULONG_PTR)&next | 1),
|
|
(void *)val ) == (void *)val)
|
|
NtWaitForKeyedEvent( keyed_event, &next, FALSE, NULL );
|
|
break;
|
|
|
|
case 2: /* done */
|
|
if (context) *context = (void *)(val & ~3);
|
|
return STATUS_SUCCESS;
|
|
|
|
case 3: /* in progress, async */
|
|
if (!(flags & RTL_RUN_ONCE_ASYNC)) return STATUS_INVALID_PARAMETER;
|
|
return STATUS_PENDING;
|
|
}
|
|
}
|
|
}
|
|
|
|
/******************************************************************
|
|
* RtlRunOnceComplete (NTDLL.@)
|
|
*/
|
|
DWORD WINAPI RtlRunOnceComplete( RTL_RUN_ONCE *once, ULONG flags, void *context )
|
|
{
|
|
if ((ULONG_PTR)context & 3) return STATUS_INVALID_PARAMETER;
|
|
|
|
if (flags & RTL_RUN_ONCE_INIT_FAILED)
|
|
{
|
|
if (context) return STATUS_INVALID_PARAMETER;
|
|
if (flags & RTL_RUN_ONCE_ASYNC) return STATUS_INVALID_PARAMETER;
|
|
}
|
|
else context = (void *)((ULONG_PTR)context | 2);
|
|
|
|
for (;;)
|
|
{
|
|
ULONG_PTR val = (ULONG_PTR)once->Ptr;
|
|
|
|
switch (val & 3)
|
|
{
|
|
case 1: /* in progress */
|
|
if (interlocked_cmpxchg_ptr( &once->Ptr, context, (void *)val ) != (void *)val) break;
|
|
val &= ~3;
|
|
while (val)
|
|
{
|
|
ULONG_PTR next = *(ULONG_PTR *)val;
|
|
NtReleaseKeyedEvent( keyed_event, (void *)val, FALSE, NULL );
|
|
val = next;
|
|
}
|
|
return STATUS_SUCCESS;
|
|
|
|
case 3: /* in progress, async */
|
|
if (!(flags & RTL_RUN_ONCE_ASYNC)) return STATUS_INVALID_PARAMETER;
|
|
if (interlocked_cmpxchg_ptr( &once->Ptr, context, (void *)val ) != (void *)val) break;
|
|
return STATUS_SUCCESS;
|
|
|
|
default:
|
|
return STATUS_UNSUCCESSFUL;
|
|
}
|
|
}
|
|
}
|
|
|
|
/******************************************************************
|
|
* RtlRunOnceExecuteOnce (NTDLL.@)
|
|
*/
|
|
DWORD WINAPI RtlRunOnceExecuteOnce( RTL_RUN_ONCE *once, PRTL_RUN_ONCE_INIT_FN func,
|
|
void *param, void **context )
|
|
{
|
|
DWORD ret = RtlRunOnceBeginInitialize( once, 0, context );
|
|
|
|
if (ret != STATUS_PENDING) return ret;
|
|
|
|
if (!func( once, param, context ))
|
|
{
|
|
RtlRunOnceComplete( once, RTL_RUN_ONCE_INIT_FAILED, NULL );
|
|
return STATUS_UNSUCCESSFUL;
|
|
}
|
|
|
|
return RtlRunOnceComplete( once, 0, context ? *context : NULL );
|
|
}
|
|
|
|
|
|
/* SRW locks implementation
|
|
*
|
|
* The memory layout used by the lock is:
|
|
*
|
|
* 32 31 16 0
|
|
* ________________ ________________
|
|
* | X| #exclusive | #shared |
|
|
* ¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯
|
|
* Since there is no space left for a separate counter of shared access
|
|
* threads inside the locked section the #shared field is used for multiple
|
|
* purposes. The following table lists all possible states the lock can be
|
|
* in, notation: [X, #exclusive, #shared]:
|
|
*
|
|
* [0, 0, N] -> locked by N shared access threads, if N=0 its unlocked
|
|
* [0, >=1, >=1] -> threads are requesting exclusive locks, but there are
|
|
* still shared access threads inside. #shared should not be incremented
|
|
* anymore!
|
|
* [1, >=1, >=0] -> lock is owned by an exclusive thread and the #shared
|
|
* counter can be used again to count the number of threads waiting in the
|
|
* queue for shared access.
|
|
*
|
|
* the following states are invalid and will never occur:
|
|
* [0, >=1, 0], [1, 0, >=0]
|
|
*
|
|
* The main problem arising from the fact that we have no separate counter
|
|
* of shared access threads inside the locked section is that in the state
|
|
* [0, >=1, >=1] above we cannot add additional waiting threads to the
|
|
* shared access queue - it wouldn't be possible to distinguish waiting
|
|
* threads and those that are still inside. To solve this problem the lock
|
|
* uses the following approach: a thread that isn't able to allocate a
|
|
* shared lock just uses the exclusive queue instead. As soon as the thread
|
|
* is woken up it is in the state [1, >=1, >=0]. In this state it's again
|
|
* possible to use the shared access queue. The thread atomically moves
|
|
* itself to the shared access queue and releases the exclusive lock, so
|
|
* that the "real" exclusive access threads have a chance. As soon as they
|
|
* are all ready the shared access threads are processed.
|
|
*/
|
|
|
|
#define SRWLOCK_MASK_IN_EXCLUSIVE 0x80000000
|
|
#define SRWLOCK_MASK_EXCLUSIVE_QUEUE 0x7fff0000
|
|
#define SRWLOCK_MASK_SHARED_QUEUE 0x0000ffff
|
|
#define SRWLOCK_RES_EXCLUSIVE 0x00010000
|
|
#define SRWLOCK_RES_SHARED 0x00000001
|
|
|
|
#ifdef WORDS_BIGENDIAN
|
|
#define srwlock_key_exclusive(lock) (&lock->Ptr)
|
|
#define srwlock_key_shared(lock) ((void *)((char *)&lock->Ptr + 2))
|
|
#else
|
|
#define srwlock_key_exclusive(lock) ((void *)((char *)&lock->Ptr + 2))
|
|
#define srwlock_key_shared(lock) (&lock->Ptr)
|
|
#endif
|
|
|
|
static inline void srwlock_check_invalid( unsigned int val )
|
|
{
|
|
/* Throw exception if it's impossible to acquire/release this lock. */
|
|
if ((val & SRWLOCK_MASK_EXCLUSIVE_QUEUE) == SRWLOCK_MASK_EXCLUSIVE_QUEUE ||
|
|
(val & SRWLOCK_MASK_SHARED_QUEUE) == SRWLOCK_MASK_SHARED_QUEUE)
|
|
RtlRaiseStatus(STATUS_RESOURCE_NOT_OWNED);
|
|
}
|
|
|
|
static inline unsigned int srwlock_lock_exclusive( unsigned int *dest, int incr )
|
|
{
|
|
unsigned int val, tmp;
|
|
/* Atomically modifies the value of *dest by adding incr. If the shared
|
|
* queue is empty and there are threads waiting for exclusive access, then
|
|
* sets the mark SRWLOCK_MASK_IN_EXCLUSIVE to signal other threads that
|
|
* they are allowed again to use the shared queue counter. */
|
|
for (val = *dest;; val = tmp)
|
|
{
|
|
tmp = val + incr;
|
|
srwlock_check_invalid( tmp );
|
|
if ((tmp & SRWLOCK_MASK_EXCLUSIVE_QUEUE) && !(tmp & SRWLOCK_MASK_SHARED_QUEUE))
|
|
tmp |= SRWLOCK_MASK_IN_EXCLUSIVE;
|
|
if ((tmp = interlocked_cmpxchg( (int *)dest, tmp, val )) == val)
|
|
break;
|
|
}
|
|
return val;
|
|
}
|
|
|
|
static inline unsigned int srwlock_unlock_exclusive( unsigned int *dest, int incr )
|
|
{
|
|
unsigned int val, tmp;
|
|
/* Atomically modifies the value of *dest by adding incr. If the queue of
|
|
* threads waiting for exclusive access is empty, then remove the
|
|
* SRWLOCK_MASK_IN_EXCLUSIVE flag (only the shared queue counter will
|
|
* remain). */
|
|
for (val = *dest;; val = tmp)
|
|
{
|
|
tmp = val + incr;
|
|
srwlock_check_invalid( tmp );
|
|
if (!(tmp & SRWLOCK_MASK_EXCLUSIVE_QUEUE))
|
|
tmp &= SRWLOCK_MASK_SHARED_QUEUE;
|
|
if ((tmp = interlocked_cmpxchg( (int *)dest, tmp, val )) == val)
|
|
break;
|
|
}
|
|
return val;
|
|
}
|
|
|
|
static inline void srwlock_leave_exclusive( RTL_SRWLOCK *lock, unsigned int val )
|
|
{
|
|
/* Used when a thread leaves an exclusive section. If there are other
|
|
* exclusive access threads they are processed first, followed by
|
|
* the shared waiters. */
|
|
if (val & SRWLOCK_MASK_EXCLUSIVE_QUEUE)
|
|
NtReleaseKeyedEvent( keyed_event, srwlock_key_exclusive(lock), FALSE, NULL );
|
|
else
|
|
{
|
|
val &= SRWLOCK_MASK_SHARED_QUEUE; /* remove SRWLOCK_MASK_IN_EXCLUSIVE */
|
|
while (val--)
|
|
NtReleaseKeyedEvent( keyed_event, srwlock_key_shared(lock), FALSE, NULL );
|
|
}
|
|
}
|
|
|
|
static inline void srwlock_leave_shared( RTL_SRWLOCK *lock, unsigned int val )
|
|
{
|
|
/* Wake up one exclusive thread as soon as the last shared access thread
|
|
* has left. */
|
|
if ((val & SRWLOCK_MASK_EXCLUSIVE_QUEUE) && !(val & SRWLOCK_MASK_SHARED_QUEUE))
|
|
NtReleaseKeyedEvent( keyed_event, srwlock_key_exclusive(lock), FALSE, NULL );
|
|
}
|
|
|
|
/***********************************************************************
|
|
* RtlInitializeSRWLock (NTDLL.@)
|
|
*
|
|
* NOTES
|
|
* Please note that SRWLocks do not keep track of the owner of a lock.
|
|
* It doesn't make any difference which thread for example unlocks an
|
|
* SRWLock (see corresponding tests). This implementation uses two
|
|
* keyed events (one for the exclusive waiters and one for the shared
|
|
* waiters) and is limited to 2^15-1 waiting threads.
|
|
*/
|
|
void WINAPI RtlInitializeSRWLock( RTL_SRWLOCK *lock )
|
|
{
|
|
lock->Ptr = NULL;
|
|
}
|
|
|
|
/***********************************************************************
|
|
* RtlAcquireSRWLockExclusive (NTDLL.@)
|
|
*
|
|
* NOTES
|
|
* Unlike RtlAcquireResourceExclusive this function doesn't allow
|
|
* nested calls from the same thread. "Upgrading" a shared access lock
|
|
* to an exclusive access lock also doesn't seem to be supported.
|
|
*/
|
|
void WINAPI RtlAcquireSRWLockExclusive( RTL_SRWLOCK *lock )
|
|
{
|
|
if (srwlock_lock_exclusive( (unsigned int *)&lock->Ptr, SRWLOCK_RES_EXCLUSIVE ))
|
|
NtWaitForKeyedEvent( keyed_event, srwlock_key_exclusive(lock), FALSE, NULL );
|
|
}
|
|
|
|
/***********************************************************************
|
|
* RtlAcquireSRWLockShared (NTDLL.@)
|
|
*
|
|
* NOTES
|
|
* Do not call this function recursively - it will only succeed when
|
|
* there are no threads waiting for an exclusive lock!
|
|
*/
|
|
void WINAPI RtlAcquireSRWLockShared( RTL_SRWLOCK *lock )
|
|
{
|
|
unsigned int val, tmp;
|
|
/* Acquires a shared lock. If it's currently not possible to add elements to
|
|
* the shared queue, then request exclusive access instead. */
|
|
for (val = *(unsigned int *)&lock->Ptr;; val = tmp)
|
|
{
|
|
if ((val & SRWLOCK_MASK_EXCLUSIVE_QUEUE) && !(val & SRWLOCK_MASK_IN_EXCLUSIVE))
|
|
tmp = val + SRWLOCK_RES_EXCLUSIVE;
|
|
else
|
|
tmp = val + SRWLOCK_RES_SHARED;
|
|
if ((tmp = interlocked_cmpxchg( (int *)&lock->Ptr, tmp, val )) == val)
|
|
break;
|
|
}
|
|
|
|
/* Drop exclusive access again and instead requeue for shared access. */
|
|
if ((val & SRWLOCK_MASK_EXCLUSIVE_QUEUE) && !(val & SRWLOCK_MASK_IN_EXCLUSIVE))
|
|
{
|
|
NtWaitForKeyedEvent( keyed_event, srwlock_key_exclusive(lock), FALSE, NULL );
|
|
val = srwlock_unlock_exclusive( (unsigned int *)&lock->Ptr, (SRWLOCK_RES_SHARED
|
|
- SRWLOCK_RES_EXCLUSIVE) ) - SRWLOCK_RES_EXCLUSIVE;
|
|
srwlock_leave_exclusive( lock, val );
|
|
}
|
|
|
|
if (val & SRWLOCK_MASK_EXCLUSIVE_QUEUE)
|
|
NtWaitForKeyedEvent( keyed_event, srwlock_key_shared(lock), FALSE, NULL );
|
|
}
|
|
|
|
/***********************************************************************
|
|
* RtlReleaseSRWLockExclusive (NTDLL.@)
|
|
*/
|
|
void WINAPI RtlReleaseSRWLockExclusive( RTL_SRWLOCK *lock )
|
|
{
|
|
srwlock_leave_exclusive( lock, srwlock_unlock_exclusive( (unsigned int *)&lock->Ptr,
|
|
- SRWLOCK_RES_EXCLUSIVE ) - SRWLOCK_RES_EXCLUSIVE );
|
|
}
|
|
|
|
/***********************************************************************
|
|
* RtlReleaseSRWLockShared (NTDLL.@)
|
|
*/
|
|
void WINAPI RtlReleaseSRWLockShared( RTL_SRWLOCK *lock )
|
|
{
|
|
srwlock_leave_shared( lock, srwlock_lock_exclusive( (unsigned int *)&lock->Ptr,
|
|
- SRWLOCK_RES_SHARED ) - SRWLOCK_RES_SHARED );
|
|
}
|
|
|
|
/***********************************************************************
|
|
* RtlTryAcquireSRWLockExclusive (NTDLL.@)
|
|
*
|
|
* NOTES
|
|
* Similar to AcquireSRWLockExclusive recusive calls are not allowed
|
|
* and will fail with return value FALSE.
|
|
*/
|
|
BOOLEAN WINAPI RtlTryAcquireSRWLockExclusive( RTL_SRWLOCK *lock )
|
|
{
|
|
return interlocked_cmpxchg( (int *)&lock->Ptr, SRWLOCK_MASK_IN_EXCLUSIVE |
|
|
SRWLOCK_RES_EXCLUSIVE, 0 ) == 0;
|
|
}
|
|
|
|
/***********************************************************************
|
|
* RtlTryAcquireSRWLockShared (NTDLL.@)
|
|
*/
|
|
BOOLEAN WINAPI RtlTryAcquireSRWLockShared( RTL_SRWLOCK *lock )
|
|
{
|
|
unsigned int val, tmp;
|
|
for (val = *(unsigned int *)&lock->Ptr;; val = tmp)
|
|
{
|
|
if (val & SRWLOCK_MASK_EXCLUSIVE_QUEUE)
|
|
return FALSE;
|
|
if ((tmp = interlocked_cmpxchg( (int *)&lock->Ptr, val + SRWLOCK_RES_SHARED, val )) == val)
|
|
break;
|
|
}
|
|
return TRUE;
|
|
}
|
|
|
|
/***********************************************************************
|
|
* RtlInitializeConditionVariable (NTDLL.@)
|
|
*
|
|
* Initializes the condition variable with NULL.
|
|
*
|
|
* PARAMS
|
|
* variable [O] condition variable
|
|
*
|
|
* RETURNS
|
|
* Nothing.
|
|
*/
|
|
void WINAPI RtlInitializeConditionVariable( RTL_CONDITION_VARIABLE *variable )
|
|
{
|
|
variable->Ptr = NULL;
|
|
}
|
|
|
|
/***********************************************************************
|
|
* RtlWakeConditionVariable (NTDLL.@)
|
|
*
|
|
* Wakes up one thread waiting on the condition variable.
|
|
*
|
|
* PARAMS
|
|
* variable [I/O] condition variable to wake up.
|
|
*
|
|
* RETURNS
|
|
* Nothing.
|
|
*
|
|
* NOTES
|
|
* The calling thread does not have to own any lock in order to call
|
|
* this function.
|
|
*/
|
|
void WINAPI RtlWakeConditionVariable( RTL_CONDITION_VARIABLE *variable )
|
|
{
|
|
if (interlocked_dec_if_nonzero( (int *)&variable->Ptr ))
|
|
NtReleaseKeyedEvent( keyed_event, &variable->Ptr, FALSE, NULL );
|
|
}
|
|
|
|
/***********************************************************************
|
|
* RtlWakeAllConditionVariable (NTDLL.@)
|
|
*
|
|
* See WakeConditionVariable, wakes up all waiting threads.
|
|
*/
|
|
void WINAPI RtlWakeAllConditionVariable( RTL_CONDITION_VARIABLE *variable )
|
|
{
|
|
int val = interlocked_xchg( (int *)&variable->Ptr, 0 );
|
|
while (val-- > 0)
|
|
NtReleaseKeyedEvent( keyed_event, &variable->Ptr, FALSE, NULL );
|
|
}
|
|
|
|
/***********************************************************************
|
|
* RtlSleepConditionVariableCS (NTDLL.@)
|
|
*
|
|
* Atomically releases the critical section and suspends the thread,
|
|
* waiting for a Wake(All)ConditionVariable event. Afterwards it enters
|
|
* the critical section again and returns.
|
|
*
|
|
* PARAMS
|
|
* variable [I/O] condition variable
|
|
* crit [I/O] critical section to leave temporarily
|
|
* timeout [I] timeout
|
|
*
|
|
* RETURNS
|
|
* see NtWaitForKeyedEvent for all possible return values.
|
|
*/
|
|
NTSTATUS WINAPI RtlSleepConditionVariableCS( RTL_CONDITION_VARIABLE *variable, RTL_CRITICAL_SECTION *crit,
|
|
const LARGE_INTEGER *timeout )
|
|
{
|
|
NTSTATUS status;
|
|
interlocked_xchg_add( (int *)&variable->Ptr, 1 );
|
|
RtlLeaveCriticalSection( crit );
|
|
|
|
status = NtWaitForKeyedEvent( keyed_event, &variable->Ptr, FALSE, timeout );
|
|
if (status != STATUS_SUCCESS)
|
|
{
|
|
if (!interlocked_dec_if_nonzero( (int *)&variable->Ptr ))
|
|
status = NtWaitForKeyedEvent( keyed_event, &variable->Ptr, FALSE, NULL );
|
|
}
|
|
|
|
RtlEnterCriticalSection( crit );
|
|
return status;
|
|
}
|
|
|
|
/***********************************************************************
|
|
* RtlSleepConditionVariableSRW (NTDLL.@)
|
|
*
|
|
* Atomically releases the SRWLock and suspends the thread,
|
|
* waiting for a Wake(All)ConditionVariable event. Afterwards it enters
|
|
* the SRWLock again with the same access rights and returns.
|
|
*
|
|
* PARAMS
|
|
* variable [I/O] condition variable
|
|
* lock [I/O] SRWLock to leave temporarily
|
|
* timeout [I] timeout
|
|
* flags [I] type of the current lock (exclusive / shared)
|
|
*
|
|
* RETURNS
|
|
* see NtWaitForKeyedEvent for all possible return values.
|
|
*
|
|
* NOTES
|
|
* the behaviour is undefined if the thread doesn't own the lock.
|
|
*/
|
|
NTSTATUS WINAPI RtlSleepConditionVariableSRW( RTL_CONDITION_VARIABLE *variable, RTL_SRWLOCK *lock,
|
|
const LARGE_INTEGER *timeout, ULONG flags )
|
|
{
|
|
NTSTATUS status;
|
|
interlocked_xchg_add( (int *)&variable->Ptr, 1 );
|
|
|
|
if (flags & RTL_CONDITION_VARIABLE_LOCKMODE_SHARED)
|
|
RtlReleaseSRWLockShared( lock );
|
|
else
|
|
RtlReleaseSRWLockExclusive( lock );
|
|
|
|
status = NtWaitForKeyedEvent( keyed_event, &variable->Ptr, FALSE, timeout );
|
|
if (status != STATUS_SUCCESS)
|
|
{
|
|
if (!interlocked_dec_if_nonzero( (int *)&variable->Ptr ))
|
|
status = NtWaitForKeyedEvent( keyed_event, &variable->Ptr, FALSE, NULL );
|
|
}
|
|
|
|
if (flags & RTL_CONDITION_VARIABLE_LOCKMODE_SHARED)
|
|
RtlAcquireSRWLockShared( lock );
|
|
else
|
|
RtlAcquireSRWLockExclusive( lock );
|
|
return status;
|
|
}
|