sync.c 44.5 KB
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/*
 *	Process synchronisation
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 *
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 * Copyright 1996, 1997, 1998 Marcus Meissner
 * 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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 *
 * This library is free software; you can redistribute it and/or
 * modify it under the terms of the GNU Lesser General Public
 * License as published by the Free Software Foundation; either
 * version 2.1 of the License, or (at your option) any later version.
 *
 * This library is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
 * Lesser General Public License for more details.
 *
 * You should have received a copy of the GNU Lesser General Public
 * 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"

#include <assert.h>
#include <errno.h>
#include <signal.h>
#ifdef HAVE_SYS_TIME_H
# include <sys/time.h>
#endif
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#ifdef HAVE_POLL_H
#include <poll.h>
#endif
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#ifdef HAVE_SYS_POLL_H
# include <sys/poll.h>
#endif
#ifdef HAVE_UNISTD_H
# include <unistd.h>
#endif
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#ifdef HAVE_SCHED_H
# include <sched.h>
#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>
#include <time.h>

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#define NONAMELESSUNION
#define NONAMELESSSTRUCT

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#include "ntstatus.h"
#define WIN32_NO_STATUS
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#include "windef.h"
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#include "thread.h"
#include "wine/server.h"
#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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/* creates a struct security_descriptor and contained information in one contiguous piece of memory */
NTSTATUS NTDLL_create_struct_sd(PSECURITY_DESCRIPTOR nt_sd, struct security_descriptor **server_sd,
                                data_size_t *server_sd_len)
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{
    unsigned int len;
    PSID owner, group;
    ACL *dacl, *sacl;
    BOOLEAN owner_present, group_present, dacl_present, sacl_present;
    BOOLEAN defaulted;
    NTSTATUS status;
    unsigned char *ptr;

    if (!nt_sd)
    {
        *server_sd = NULL;
        *server_sd_len = 0;
        return STATUS_SUCCESS;
    }

    len = sizeof(struct security_descriptor);

    status = RtlGetOwnerSecurityDescriptor(nt_sd, &owner, &owner_present);
    if (status != STATUS_SUCCESS) return status;
    status = RtlGetGroupSecurityDescriptor(nt_sd, &group, &group_present);
    if (status != STATUS_SUCCESS) return status;
    status = RtlGetSaclSecurityDescriptor(nt_sd, &sacl_present, &sacl, &defaulted);
    if (status != STATUS_SUCCESS) return status;
    status = RtlGetDaclSecurityDescriptor(nt_sd, &dacl_present, &dacl, &defaulted);
    if (status != STATUS_SUCCESS) return status;

    if (owner_present)
        len += RtlLengthSid(owner);
    if (group_present)
        len += RtlLengthSid(group);
    if (sacl_present && sacl)
        len += sacl->AclSize;
    if (dacl_present && dacl)
        len += dacl->AclSize;

    /* fix alignment for the Unicode name that follows the structure */
    len = (len + sizeof(WCHAR) - 1) & ~(sizeof(WCHAR) - 1);
    *server_sd = RtlAllocateHeap(GetProcessHeap(), 0, len);
    if (!*server_sd) return STATUS_NO_MEMORY;

    (*server_sd)->control = ((SECURITY_DESCRIPTOR *)nt_sd)->Control & ~SE_SELF_RELATIVE;
    (*server_sd)->owner_len = owner_present ? RtlLengthSid(owner) : 0;
    (*server_sd)->group_len = group_present ? RtlLengthSid(group) : 0;
    (*server_sd)->sacl_len = (sacl_present && sacl) ? sacl->AclSize : 0;
    (*server_sd)->dacl_len = (dacl_present && dacl) ? dacl->AclSize : 0;

    ptr = (unsigned char *)(*server_sd + 1);
    memcpy(ptr, owner, (*server_sd)->owner_len);
    ptr += (*server_sd)->owner_len;
    memcpy(ptr, group, (*server_sd)->group_len);
    ptr += (*server_sd)->group_len;
    memcpy(ptr, sacl, (*server_sd)->sacl_len);
    ptr += (*server_sd)->sacl_len;
    memcpy(ptr, dacl, (*server_sd)->dacl_len);

    *server_sd_len = len;

    return STATUS_SUCCESS;
}

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/* frees a struct security_descriptor allocated by NTDLL_create_struct_sd */
void NTDLL_free_struct_sd(struct security_descriptor *server_sd)
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{
    RtlFreeHeap(GetProcessHeap(), 0, server_sd);
}

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/*
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 *	Semaphores
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 */

/******************************************************************************
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 *  NtCreateSemaphore (NTDLL.@)
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 */
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NTSTATUS WINAPI NtCreateSemaphore( OUT PHANDLE SemaphoreHandle,
                                   IN ACCESS_MASK access,
                                   IN const OBJECT_ATTRIBUTES *attr OPTIONAL,
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                                   IN LONG InitialCount,
                                   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;
    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 =  attr ? attr->RootDirectory : 0;
    objattr.sd_len = 0;
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    objattr.name_len = len;
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    if (attr)
    {
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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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    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;
        req->max     = MaximumCount;
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        wine_server_add_data( req, &objattr, sizeof(objattr) );
        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 );
        ret = wine_server_call( req );
        *SemaphoreHandle = 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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 *  NtOpenSemaphore (NTDLL.@)
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 */
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NTSTATUS WINAPI NtOpenSemaphore( OUT PHANDLE SemaphoreHandle,
                                 IN ACCESS_MASK access,
                                 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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    {
        req->access  = access;
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        req->attributes = (attr) ? attr->Attributes : 0;
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        req->rootdir = attr ? attr->RootDirectory : 0;
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        if (len) wine_server_add_data( req, attr->ObjectName->Buffer, len );
        ret = wine_server_call( req );
        *SemaphoreHandle = 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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 *  NtQuerySemaphore (NTDLL.@)
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 */
NTSTATUS WINAPI NtQuerySemaphore(
	HANDLE SemaphoreHandle,
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	SEMAPHORE_INFORMATION_CLASS SemaphoreInformationClass,
	PVOID SemaphoreInformation,
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	ULONG Length,
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	PULONG ReturnLength)
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{
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	FIXME("(%p,%d,%p,0x%08x,%p) stub!\n",
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	SemaphoreHandle, SemaphoreInformationClass, SemaphoreInformation, Length, ReturnLength);
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	return STATUS_SUCCESS;
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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 = handle;
        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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 *	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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 */
NTSTATUS WINAPI NtCreateEvent(
	OUT PHANDLE EventHandle,
	IN ACCESS_MASK DesiredAccess,
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	IN const OBJECT_ATTRIBUTES *attr,
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	IN BOOLEAN ManualReset,
	IN BOOLEAN InitialState)
{
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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;
    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 = attr ? attr->RootDirectory : 0;
    objattr.sd_len = 0;
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    objattr.name_len = len;
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    if (attr)
    {
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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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    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 = ManualReset;
        req->initial_state = InitialState;
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        wine_server_add_data( req, &objattr, sizeof(objattr) );
        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 );
        ret = wine_server_call( req );
        *EventHandle = 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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 *  NtOpenEvent (NTDLL.@)
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 *  ZwOpenEvent (NTDLL.@)
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 */
NTSTATUS WINAPI NtOpenEvent(
	OUT PHANDLE EventHandle,
	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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    {
        req->access  = DesiredAccess;
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        req->attributes = (attr) ? attr->Attributes : 0;
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        req->rootdir = attr ? attr->RootDirectory : 0;
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        if (len) wine_server_add_data( req, attr->ObjectName->Buffer, len );
        ret = wine_server_call( req );
        *EventHandle = 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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 *  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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    {
        req->handle = handle;
        req->op     = SET_EVENT;
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        ret = wine_server_call( req );
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    }
    SERVER_END_REQ;
    return ret;
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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;

    /* resetting an event can't release any thread... */
    if (NumberOfThreadsReleased) *NumberOfThreadsReleased = 0;

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    SERVER_START_REQ( event_op )
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    {
        req->handle = handle;
        req->op     = RESET_EVENT;
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        ret = wine_server_call( req );
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    }
    SERVER_END_REQ;
    return ret;
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}

/******************************************************************************
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 *  NtClearEvent (NTDLL.@)
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 *
 * FIXME
 *   same as NtResetEvent ???
 */
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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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}

/******************************************************************************
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 *  NtPulseEvent (NTDLL.@)
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 *
 * FIXME
 *   PulseCount
 */
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NTSTATUS WINAPI NtPulseEvent( HANDLE handle, PULONG PulseCount )
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{
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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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    SERVER_START_REQ( event_op )
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    {
        req->handle = handle;
        req->op     = PULSE_EVENT;
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        ret = wine_server_call( req );
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    }
    SERVER_END_REQ;
    return ret;
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}

/******************************************************************************
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 *  NtQueryEvent (NTDLL.@)
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 */
NTSTATUS WINAPI NtQueryEvent (
	IN  HANDLE EventHandle,
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	IN  EVENT_INFORMATION_CLASS EventInformationClass,
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	OUT PVOID EventInformation,
	IN  ULONG EventInformationLength,
	OUT PULONG  ReturnLength)
{
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	FIXME("(%p)\n", EventHandle);
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	return STATUS_SUCCESS;
}
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/*
 *	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)
{
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    NTSTATUS status;
    DWORD len = attr && attr->ObjectName ? attr->ObjectName->Length : 0;
    struct security_descriptor *sd = NULL;
    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 = attr ? attr->RootDirectory : 0;
    objattr.sd_len = 0;
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    objattr.name_len = len;
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    if (attr)
    {
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        status = NTDLL_create_struct_sd( attr->SecurityDescriptor, &sd, &objattr.sd_len );
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        if (status != STATUS_SUCCESS) return status;
    }

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    SERVER_START_REQ( create_mutex )
    {
        req->access  = access;
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        req->attributes = (attr) ? attr->Attributes : 0;
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        req->owned   = InitialOwner;
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        wine_server_add_data( req, &objattr, sizeof(objattr) );
        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 );
        status = wine_server_call( req );
        *MutantHandle = reply->handle;
    }
    SERVER_END_REQ;
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    NTDLL_free_struct_sd( sd );
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    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;
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        req->attributes = (attr) ? attr->Attributes : 0;
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        req->rootdir = attr ? attr->RootDirectory : 0;
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        if (len) wine_server_add_data( req, attr->ObjectName->Buffer, len );
        status = wine_server_call( req );
        *MutantHandle = 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 = 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 )
{
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    FIXME("(%p %u %p %u %p): stub!\n", 
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          handle, MutantInformationClass, MutantInformation, MutantInformationLength, ResultLength);
    return STATUS_NOT_IMPLEMENTED;
}
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/*
 *	Timers
 */

/**************************************************************************
 *		NtCreateTimer				[NTDLL.@]
 *		ZwCreateTimer				[NTDLL.@]
 */
NTSTATUS WINAPI NtCreateTimer(OUT HANDLE *handle,
                              IN ACCESS_MASK access,
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                              IN const OBJECT_ATTRIBUTES *attr OPTIONAL,
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                              IN TIMER_TYPE timer_type)
{
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    DWORD       len = (attr && attr->ObjectName) ? attr->ObjectName->Length : 0;
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    NTSTATUS    status;

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    if (len >= MAX_PATH * sizeof(WCHAR)) return STATUS_NAME_TOO_LONG;

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    if (timer_type != NotificationTimer && timer_type != SynchronizationTimer)
        return STATUS_INVALID_PARAMETER;

    SERVER_START_REQ( create_timer )
    {
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        req->access  = access;
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        req->attributes = (attr) ? attr->Attributes : 0;
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        req->rootdir = attr ? attr->RootDirectory : 0;
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        req->manual  = (timer_type == NotificationTimer) ? TRUE : FALSE;
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        if (len) wine_server_add_data( req, attr->ObjectName->Buffer, len );
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        status = wine_server_call( req );
        *handle = reply->handle;
    }
    SERVER_END_REQ;
    return status;

}

/**************************************************************************
 *		NtOpenTimer				[NTDLL.@]
 *		ZwOpenTimer				[NTDLL.@]
 */
NTSTATUS WINAPI NtOpenTimer(OUT PHANDLE handle,
                            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;
    NTSTATUS    status;
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    if (len >= MAX_PATH * sizeof(WCHAR)) return STATUS_NAME_TOO_LONG;
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    SERVER_START_REQ( open_timer )
    {
        req->access  = access;
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        req->attributes = (attr) ? attr->Attributes : 0;
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        req->rootdir = attr ? attr->RootDirectory : 0;
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        if (len) wine_server_add_data( req, attr->ObjectName->Buffer, len );
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        status = wine_server_call( req );
        *handle = reply->handle;
    }
    SERVER_END_REQ;
    return status;
}

/**************************************************************************
 *		NtSetTimer				[NTDLL.@]
 *		ZwSetTimer				[NTDLL.@]
 */
NTSTATUS WINAPI NtSetTimer(IN HANDLE handle,
                           IN const LARGE_INTEGER* when,
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                           IN PTIMER_APC_ROUTINE callback,
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                           IN PVOID callback_arg,
                           IN BOOLEAN resume,
                           IN ULONG period OPTIONAL,
                           OUT PBOOLEAN state OPTIONAL)
{
    NTSTATUS    status = STATUS_SUCCESS;

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    TRACE("(%p,%p,%p,%p,%08x,0x%08x,%p) stub\n",
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          handle, when, callback, callback_arg, resume, period, state);

    SERVER_START_REQ( set_timer )
    {
        req->handle   = handle;
        req->period   = period;
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        req->expire   = when->QuadPart;
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        req->callback = callback;
        req->arg      = 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 = handle;
        status = wine_server_call( req );
        if (state) *state = reply->signaled;
    }
    SERVER_END_REQ;
    return status;
}

628 629 630 631 632 633 634 635 636 637 638 639 640 641 642 643 644 645 646 647 648 649 650 651 652 653 654 655 656 657 658
/******************************************************************************
 *  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 = (TIMER_BASIC_INFORMATION *)TimerInformation;
    NTSTATUS status;
    LARGE_INTEGER now;

659
    TRACE("(%p,%d,%p,0x%08x,%p)\n", TimerHandle, TimerInformationClass,
660 661 662 663 664 665 666 667 668 669 670 671 672 673
       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 = TimerHandle;
            status = wine_server_call(req);

            /* convert server time to absolute NTDLL time */
674
            basic_info->RemainingTime.QuadPart = reply->when;
675 676 677 678 679 680 681 682 683 684 685 686 687 688 689 690 691 692 693 694 695
            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;
}


696 697 698 699 700 701 702 703 704 705 706 707 708 709 710 711 712 713 714 715
/******************************************************************************
 * 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 )
{
716
    FIXME("(%u,%u,%p), stub!\n",
717 718 719 720 721 722
          resolution, set_resolution, current_resolution);

    return STATUS_NOT_IMPLEMENTED;
}


723 724 725 726 727 728 729 730 731 732 733 734
/***********************************************************************
 *              wait_reply
 *
 * Wait for a reply on the waiting pipe of the current thread.
 */
static int wait_reply( void *cookie )
{
    int signaled;
    struct wake_up_reply reply;
    for (;;)
    {
        int ret;
735
        ret = read( ntdll_get_thread_data()->wait_fd[0], &reply, sizeof(reply) );
736 737 738 739 740 741 742 743 744
        if (ret == sizeof(reply))
        {
            if (!reply.cookie) break;  /* thread got killed */
            if (reply.cookie == cookie) return reply.signaled;
            /* we stole another reply, wait for the real one */
            signaled = wait_reply( cookie );
            /* and now put the wrong one back in the pipe */
            for (;;)
            {
745
                ret = write( ntdll_get_thread_data()->wait_fd[1], &reply, sizeof(reply) );
746 747 748 749 750 751 752 753 754 755 756 757
                if (ret == sizeof(reply)) break;
                if (ret >= 0) server_protocol_error( "partial wakeup write %d\n", ret );
                if (errno == EINTR) continue;
                server_protocol_perror("wakeup write");
            }
            return signaled;
        }
        if (ret >= 0) server_protocol_error( "partial wakeup read %d\n", ret );
        if (errno == EINTR) continue;
        server_protocol_perror("wakeup read");
    }
    /* the server closed the connection; time to die... */
758
    server_abort_thread(0);
759 760 761
}


762 763 764 765 766 767 768 769 770 771 772 773 774
/***********************************************************************
 *              invoke_apc
 *
 * Invoke a single APC. Return TRUE if a user APC has been run.
 */
static BOOL invoke_apc( const apc_call_t *call, apc_result_t *result )
{
    BOOL user_apc = FALSE;

    memset( result, 0, sizeof(*result) );

    switch (call->type)
    {
775 776
    case APC_NONE:
        break;
777 778 779 780 781
    case APC_USER:
        call->user.func( call->user.args[0], call->user.args[1], call->user.args[2] );
        user_apc = TRUE;
        break;
    case APC_TIMER:
782
        call->timer.func( call->timer.arg, (DWORD)call->timer.time, (DWORD)(call->timer.time >> 32) );
783 784 785
        user_apc = TRUE;
        break;
    case APC_ASYNC_IO:
786
        result->type = call->type;
787 788
        result->async_io.status = call->async_io.func( call->async_io.user,
                                                       call->async_io.sb,
789 790
                                                       call->async_io.status,
                                                       &result->async_io.total );
791 792 793 794 795 796 797 798 799 800 801 802 803 804 805 806 807 808 809 810 811 812 813 814 815 816 817 818 819 820 821 822 823 824 825 826 827 828 829 830 831 832 833 834 835 836 837 838 839 840 841 842 843 844 845 846 847 848 849 850 851 852 853 854 855 856 857 858 859 860 861 862 863 864 865 866 867 868 869 870 871
        break;
    case APC_VIRTUAL_ALLOC:
        result->type = call->type;
        result->virtual_alloc.addr = call->virtual_alloc.addr;
        result->virtual_alloc.size = call->virtual_alloc.size;
        result->virtual_alloc.status = NtAllocateVirtualMemory( NtCurrentProcess(),
                                                                &result->virtual_alloc.addr,
                                                                call->virtual_alloc.zero_bits,
                                                                &result->virtual_alloc.size,
                                                                call->virtual_alloc.op_type,
                                                                call->virtual_alloc.prot );
        break;
    case APC_VIRTUAL_FREE:
        result->type = call->type;
        result->virtual_free.addr = call->virtual_free.addr;
        result->virtual_free.size = call->virtual_free.size;
        result->virtual_free.status = NtFreeVirtualMemory( NtCurrentProcess(),
                                                           &result->virtual_free.addr,
                                                           &result->virtual_free.size,
                                                           call->virtual_free.op_type );
        break;
    case APC_VIRTUAL_QUERY:
    {
        MEMORY_BASIC_INFORMATION info;
        result->type = call->type;
        result->virtual_query.status = NtQueryVirtualMemory( NtCurrentProcess(),
                                                             call->virtual_query.addr,
                                                             MemoryBasicInformation, &info,
                                                             sizeof(info), NULL );
        if (result->virtual_query.status == STATUS_SUCCESS)
        {
            result->virtual_query.base       = info.BaseAddress;
            result->virtual_query.alloc_base = info.AllocationBase;
            result->virtual_query.size       = info.RegionSize;
            result->virtual_query.state      = info.State;
            result->virtual_query.prot       = info.Protect;
            result->virtual_query.alloc_prot = info.AllocationProtect;
            result->virtual_query.alloc_type = info.Type;
        }
        break;
    }
    case APC_VIRTUAL_PROTECT:
        result->type = call->type;
        result->virtual_protect.addr = call->virtual_protect.addr;
        result->virtual_protect.size = call->virtual_protect.size;
        result->virtual_protect.status = NtProtectVirtualMemory( NtCurrentProcess(),
                                                                 &result->virtual_protect.addr,
                                                                 &result->virtual_protect.size,
                                                                 call->virtual_protect.prot,
                                                                 &result->virtual_protect.prot );
        break;
    case APC_VIRTUAL_FLUSH:
        result->type = call->type;
        result->virtual_flush.addr = call->virtual_flush.addr;
        result->virtual_flush.size = call->virtual_flush.size;
        result->virtual_flush.status = NtFlushVirtualMemory( NtCurrentProcess(),
                                                             &result->virtual_flush.addr,
                                                             &result->virtual_flush.size, 0 );
        break;
    case APC_VIRTUAL_LOCK:
        result->type = call->type;
        result->virtual_lock.addr = call->virtual_lock.addr;
        result->virtual_lock.size = call->virtual_lock.size;
        result->virtual_lock.status = NtLockVirtualMemory( NtCurrentProcess(),
                                                           &result->virtual_lock.addr,
                                                           &result->virtual_lock.size, 0 );
        break;
    case APC_VIRTUAL_UNLOCK:
        result->type = call->type;
        result->virtual_unlock.addr = call->virtual_unlock.addr;
        result->virtual_unlock.size = call->virtual_unlock.size;
        result->virtual_unlock.status = NtUnlockVirtualMemory( NtCurrentProcess(),
                                                               &result->virtual_unlock.addr,
                                                               &result->virtual_unlock.size, 0 );
        break;
    case APC_MAP_VIEW:
    {
        LARGE_INTEGER offset;
        result->type = call->type;
        result->map_view.addr   = call->map_view.addr;
        result->map_view.size   = call->map_view.size;
872
        offset.QuadPart         = call->map_view.offset;
873 874 875 876 877 878 879 880 881 882 883 884 885 886 887 888 889 890 891 892 893 894
        result->map_view.status = NtMapViewOfSection( call->map_view.handle, NtCurrentProcess(),
                                                      &result->map_view.addr, call->map_view.zero_bits,
                                                      0, &offset, &result->map_view.size, ViewShare,
                                                      call->map_view.alloc_type, call->map_view.prot );
        NtClose( call->map_view.handle );
        break;
    }
    case APC_UNMAP_VIEW:
        result->type = call->type;
        result->unmap_view.status = NtUnmapViewOfSection( NtCurrentProcess(), call->unmap_view.addr );
        break;
    case APC_CREATE_THREAD:
    {
        CLIENT_ID id;
        result->type = call->type;
        result->create_thread.status = RtlCreateUserThread( NtCurrentProcess(), NULL,
                                                            call->create_thread.suspend, NULL,
                                                            call->create_thread.reserve,
                                                            call->create_thread.commit,
                                                            call->create_thread.func,
                                                            call->create_thread.arg,
                                                            &result->create_thread.handle, &id );
895
        result->create_thread.tid = HandleToULong(id.UniqueThread);
896 897 898 899 900 901 902 903 904
        break;
    }
    default:
        server_protocol_error( "get_apc_request: bad type %d\n", call->type );
        break;
    }
    return user_apc;
}

905 906 907 908 909 910 911 912 913
/***********************************************************************
 *           NTDLL_queue_process_apc
 */
NTSTATUS NTDLL_queue_process_apc( HANDLE process, const apc_call_t *call, apc_result_t *result )
{
    for (;;)
    {
        NTSTATUS ret;
        HANDLE handle = 0;
914
        BOOL self = FALSE;
915 916 917 918 919

        SERVER_START_REQ( queue_apc )
        {
            req->process = process;
            req->call = *call;
920 921 922 923 924
            if (!(ret = wine_server_call( req )))
            {
                handle = reply->handle;
                self = reply->self;
            }
925 926
        }
        SERVER_END_REQ;
927
        if (ret != STATUS_SUCCESS) return ret;
928

929
        if (self)
930
        {
931
            invoke_apc( call, result );
932
        }
933 934 935
        else
        {
            NtWaitForSingleObject( handle, FALSE, NULL );
936

937 938 939 940 941 942 943 944 945 946
            SERVER_START_REQ( get_apc_result )
            {
                req->handle = handle;
                if (!(ret = wine_server_call( req ))) *result = reply->result;
            }
            SERVER_END_REQ;

            if (!ret && result->type == APC_NONE) continue;  /* APC didn't run, try again */
            if (ret) NtClose( handle );
        }
947 948 949 950 951
        return ret;
    }
}


952 953 954 955
/***********************************************************************
 *              NTDLL_wait_for_multiple_objects
 *
 * Implementation of NtWaitForMultipleObjects
956
 */
957
NTSTATUS NTDLL_wait_for_multiple_objects( UINT count, const HANDLE *handles, UINT flags,
958
                                          const LARGE_INTEGER *timeout, HANDLE signal_object )
959
{
960 961
    NTSTATUS ret;
    int cookie;
962 963 964 965
    BOOL user_apc = FALSE;
    obj_handle_t apc_handle = 0;
    apc_call_t call;
    apc_result_t result;
966
    timeout_t abs_timeout = timeout ? timeout->QuadPart : TIMEOUT_INFINITE;
967

968 969
    memset( &result, 0, sizeof(result) );

970 971 972 973
    for (;;)
    {
        SERVER_START_REQ( select )
        {
974 975 976 977 978 979
            req->flags    = flags;
            req->cookie   = &cookie;
            req->signal   = signal_object;
            req->prev_apc = apc_handle;
            req->timeout  = abs_timeout;
            wine_server_add_data( req, &result, sizeof(result) );
980 981
            wine_server_add_data( req, handles, count * sizeof(HANDLE) );
            ret = wine_server_call( req );
982
            abs_timeout = reply->timeout;
983 984
            apc_handle  = reply->apc_handle;
            call        = reply->call;
985 986 987 988
        }
        SERVER_END_REQ;
        if (ret == STATUS_PENDING) ret = wait_reply( &cookie );
        if (ret != STATUS_USER_APC) break;
989 990 991 992 993 994 995
        if (invoke_apc( &call, &result ))
        {
            /* if we ran a user apc we have to check once more if an object got signaled,
             * but we don't want to wait */
            abs_timeout = 0;
            user_apc = TRUE;
        }
996
        signal_object = 0;  /* don't signal it multiple times */
997
    }
998

999 1000
    if (ret == STATUS_TIMEOUT && user_apc) ret = STATUS_USER_APC;

1001 1002 1003
    /* A test on Windows 2000 shows that Windows always yields during
       a wait, but a wait that is hit by an event gets a priority
       boost as well.  This seems to model that behavior the closest.  */
1004
    if (ret == STATUS_TIMEOUT) NtYieldExecution();
1005

1006 1007 1008 1009
    return ret;
}


1010 1011 1012 1013 1014 1015 1016 1017 1018 1019 1020 1021 1022 1023 1024
/* wait operations */

/******************************************************************
 *		NtWaitForMultipleObjects (NTDLL.@)
 */
NTSTATUS WINAPI NtWaitForMultipleObjects( DWORD count, const HANDLE *handles,
                                          BOOLEAN wait_all, BOOLEAN alertable,
                                          const LARGE_INTEGER *timeout )
{
    UINT flags = SELECT_INTERRUPTIBLE;

    if (!count || count > MAXIMUM_WAIT_OBJECTS) return STATUS_INVALID_PARAMETER_1;

    if (wait_all) flags |= SELECT_ALL;
    if (alertable) flags |= SELECT_ALERTABLE;
1025
    return NTDLL_wait_for_multiple_objects( count, handles, flags, timeout, 0 );
1026 1027 1028
}


1029 1030 1031
/******************************************************************
 *		NtWaitForSingleObject (NTDLL.@)
 */
1032
NTSTATUS WINAPI NtWaitForSingleObject(HANDLE handle, BOOLEAN alertable, const LARGE_INTEGER *timeout )
1033 1034 1035
{
    return NtWaitForMultipleObjects( 1, &handle, FALSE, alertable, timeout );
}
1036 1037


1038 1039 1040 1041 1042 1043 1044 1045 1046 1047 1048 1049 1050 1051
/******************************************************************
 *		NtSignalAndWaitForSingleObject (NTDLL.@)
 */
NTSTATUS WINAPI NtSignalAndWaitForSingleObject( HANDLE hSignalObject, HANDLE hWaitObject,
                                                BOOLEAN alertable, const LARGE_INTEGER *timeout )
{
    UINT flags = SELECT_INTERRUPTIBLE;

    if (!hSignalObject) return STATUS_INVALID_HANDLE;
    if (alertable) flags |= SELECT_ALERTABLE;
    return NTDLL_wait_for_multiple_objects( 1, &hWaitObject, flags, timeout, hSignalObject );
}


1052 1053 1054 1055 1056 1057 1058 1059 1060 1061 1062 1063 1064 1065
/******************************************************************
 *		NtYieldExecution (NTDLL.@)
 */
NTSTATUS WINAPI NtYieldExecution(void)
{
#ifdef HAVE_SCHED_YIELD
    sched_yield();
    return STATUS_SUCCESS;
#else
    return STATUS_NO_YIELD_PERFORMED;
#endif
}


1066 1067 1068 1069 1070
/******************************************************************
 *		NtDelayExecution (NTDLL.@)
 */
NTSTATUS WINAPI NtDelayExecution( BOOLEAN alertable, const LARGE_INTEGER *timeout )
{
1071 1072 1073 1074
    /* if alertable, we need to query the server */
    if (alertable)
        return NTDLL_wait_for_multiple_objects( 0, NULL, SELECT_INTERRUPTIBLE | SELECT_ALERTABLE,
                                                timeout, 0 );
1075

1076
    if (!timeout || timeout->QuadPart == TIMEOUT_INFINITE)  /* sleep forever */
1077 1078 1079 1080 1081
    {
        for (;;) select( 0, NULL, NULL, NULL, NULL );
    }
    else
    {
1082 1083
        LARGE_INTEGER now;
        timeout_t when, diff;
1084

1085 1086 1087 1088 1089
        if ((when = timeout->QuadPart) < 0)
        {
            NtQuerySystemTime( &now );
            when = now.QuadPart - when;
        }
1090 1091 1092

        /* Note that we yield after establishing the desired timeout */
        NtYieldExecution();
1093
        if (!when) return STATUS_SUCCESS;
1094

1095 1096 1097
        for (;;)
        {
            struct timeval tv;
1098 1099 1100 1101 1102
            NtQuerySystemTime( &now );
            diff = (when - now.QuadPart + 9) / 10;
            if (diff <= 0) break;
            tv.tv_sec  = diff / 1000000;
            tv.tv_usec = diff % 1000000;
1103 1104 1105 1106 1107
            if (select( 0, NULL, NULL, NULL, &tv ) != -1) break;
        }
    }
    return STATUS_SUCCESS;
}
1108

1109
/******************************************************************
1110 1111 1112 1113 1114 1115 1116 1117 1118 1119 1120
 *              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
 *
1121
 */
1122 1123 1124
NTSTATUS WINAPI NtCreateIoCompletion( PHANDLE CompletionPort, ACCESS_MASK DesiredAccess,
                                      POBJECT_ATTRIBUTES ObjectAttributes, ULONG NumberOfConcurrentThreads )
{
1125 1126 1127
    NTSTATUS status;

    TRACE("(%p, %x, %p, %d)\n", CompletionPort, DesiredAccess,
1128
          ObjectAttributes, NumberOfConcurrentThreads);
1129 1130 1131 1132 1133 1134 1135 1136 1137 1138 1139 1140 1141 1142 1143 1144 1145 1146

    if (!CompletionPort)
        return STATUS_INVALID_PARAMETER;

    SERVER_START_REQ( create_completion )
    {
        req->access     = DesiredAccess;
        req->attributes = ObjectAttributes ? ObjectAttributes->Attributes : 0;
        req->rootdir    = ObjectAttributes ? ObjectAttributes->RootDirectory : NULL;
        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 = reply->handle;
    }
    SERVER_END_REQ;
    return status;
1147 1148
}

1149 1150 1151 1152 1153 1154 1155 1156 1157 1158 1159 1160 1161
/******************************************************************
 *              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
 */
1162
NTSTATUS WINAPI NtSetIoCompletion( HANDLE CompletionPort, ULONG_PTR CompletionKey,
1163
                                   ULONG_PTR CompletionValue, NTSTATUS Status,
1164
                                   ULONG NumberOfBytesTransferred )
1165
{
1166 1167 1168 1169 1170 1171 1172 1173 1174 1175 1176 1177 1178 1179 1180 1181
    NTSTATUS status;

    TRACE("(%p, %lx, %lx, %x, %d)\n", CompletionPort, CompletionKey,
          CompletionValue, Status, NumberOfBytesTransferred);

    SERVER_START_REQ( add_completion )
    {
        req->handle      = CompletionPort;
        req->ckey        = CompletionKey;
        req->cvalue      = CompletionValue;
        req->status      = Status;
        req->information = NumberOfBytesTransferred;
        status = wine_server_call( req );
    }
    SERVER_END_REQ;
    return status;
1182 1183
}

1184 1185 1186 1187 1188 1189 1190 1191 1192 1193 1194 1195 1196 1197
/******************************************************************
 *              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
 *
 */
1198
NTSTATUS WINAPI NtRemoveIoCompletion( HANDLE CompletionPort, PULONG_PTR CompletionKey,
1199
                                      PULONG_PTR CompletionValue, PIO_STATUS_BLOCK iosb,
1200 1201
                                      PLARGE_INTEGER WaitTime )
{
1202 1203 1204
    NTSTATUS status;

    TRACE("(%p, %p, %p, %p, %p)\n", CompletionPort, CompletionKey,
1205
          CompletionValue, iosb, WaitTime);
1206 1207 1208 1209 1210 1211 1212 1213 1214 1215 1216 1217 1218 1219 1220 1221 1222 1223 1224 1225 1226

    for(;;)
    {
        SERVER_START_REQ( remove_completion )
        {
            req->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;
1227 1228 1229 1230 1231 1232 1233 1234 1235 1236 1237 1238 1239 1240 1241 1242 1243
}

/******************************************************************
 *              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 )
{
1244 1245 1246 1247 1248 1249 1250 1251 1252 1253 1254 1255 1256 1257 1258 1259 1260 1261
    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    = ObjectAttributes->RootDirectory;
        wine_server_add_data( req, ObjectAttributes->ObjectName->Buffer,
                                   ObjectAttributes->ObjectName->Length );
        if (!(status = wine_server_call( req )))
            *CompletionPort = reply->handle;
    }
    SERVER_END_REQ;
    return status;
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}

/******************************************************************
 *              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 )
{
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    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 = (ULONG *)CompletionInformation;

                if (RequiredLength) *RequiredLength = sizeof(*info);
                if (BufferLength != sizeof(*info))
                    status = STATUS_INFO_LENGTH_MISMATCH;
                else
                {
                    SERVER_START_REQ( query_completion )
                    {
                        req->handle = CompletionPort;
                        if (!(status = wine_server_call( req )))
                            *info = reply->depth;
                    }
                    SERVER_END_REQ;
                }
            }
            break;
        default:
            status = STATUS_INVALID_PARAMETER;
            break;
    }
    return status;
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}
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NTSTATUS NTDLL_AddCompletion( HANDLE hFile, ULONG_PTR CompletionValue, NTSTATUS CompletionStatus, ULONG_PTR Information )
{
    NTSTATUS status;

    SERVER_START_REQ( add_fd_completion )
    {
        req->handle      = hFile;
        req->cvalue      = CompletionValue;
        req->status      = CompletionStatus;
        req->information = Information;
        status = wine_server_call( req );
    }
    SERVER_END_REQ;
    return status;
}