2 * reactos time handling functions emulation of libcaptive
3 * Copyright (C) 2002 Jan Kratochvil <project-captive@jankratochvil.net>
5 * This program is free software; you can redistribute it and/or modify
6 * it under the terms of the GNU General Public License as published by
7 * the Free Software Foundation; exactly version 2 of June 1991 is required
9 * This program is distributed in the hope that it will be useful,
10 * but WITHOUT ANY WARRANTY; without even the implied warranty of
11 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
12 * GNU General Public License for more details.
14 * You should have received a copy of the GNU General Public License
15 * along with this program; if not, write to the Free Software
16 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
22 #include "reactos/ddk/kefuncs.h" /* self */
23 #include <glib/gmessages.h>
27 /* This file is based on 'wine/dlls/ntdll/time.c' */
30 /* 1601 to 1970 is 369 years plus 89 leap days */
31 #define SECS_1601_TO_1970 ((369*365+89)*G_GINT64_CONSTANT(86400))
36 * @CurrentTime: Returns the current time.
37 * %NULL pointer value is forbidden.
39 * Returns the number of passed 100ns (1e-7) intervals from 1 Jan 1601.
41 VOID KeQuerySystemTime(PLARGE_INTEGER CurrentTime)
46 g_return_if_fail(CurrentTime!=NULL);
49 &tv, /* tv; timeval */
50 NULL); /* tz; timezone */
53 CurrentTime->QuadPart=(tv.tv_sec+SECS_1601_TO_1970)*G_GINT64_CONSTANT(10000000)+tv.tv_usec*10;
59 * @Timer: Previously initialized timer object.
60 * %NULL value is forbidden.
61 * @DueTime: If positive then absolute time to expire at.
62 * If negative then the relative time to expire at.
63 * @Dpc: If non %NULL then a #KDPC to be called when the timer expires.
65 * Sets the absolute or relative interval at which a timer object
66 * is to be set to the signaled state and optionally supplies a
67 * CustomTimerDpc to be executed when the timer expires.
69 * libcaptive does not support such timers and this function is a NOP there.
71 * Returns: %TRUE if the timer was already in the system timer queue.
72 * libcaptive always returns %FALSE.
74 BOOLEAN KeSetTimer(PKTIMER Timer,LARGE_INTEGER DueTime,PKDPC Dpc)
76 g_return_val_if_fail(Timer!=NULL,TRUE);
80 return FALSE; /* Timer was not yet in the system queue. */
86 * @Timer: Timer to cancel.
87 * %NULL value is forbidden.
89 * Removes a timer from the system timer list.
91 * libcaptive does not support such timers and this function is a NOP there.
93 * Returns: %TRUE if the timer was running.
94 * libcaptive always returns %FALSE.
96 BOOLEAN KeCancelTimer(PKTIMER Timer)
98 g_return_val_if_fail(Timer!=NULL,TRUE);
102 return FALSE; /* Timer was not running. */
108 * @Timer: Caller supplied storage for the timer.
110 * Initalizes a kernel timer object.
112 * libcaptive does not support such timers and this function is a NOP there.
114 VOID KeInitializeTimer(PKTIMER Timer)
116 g_return_if_fail(Timer!=NULL);
123 * KeDelayExecutionThread:
124 * @WaitMode: Processor mode in which the caller is waiting.
125 * libcaptive requires %KernelMode value.
126 * @Altertable: Specifies if the wait is alertable.
127 * libcaptive requires %FALSE value.
128 * @Interval: Specifies the interval to wait.
129 * Pointer %NULL is forbidden.
130 * libcaptive ignores the value.
132 * Function puts the current thread into an alertable or nonalertable wait
133 * state for a given internal. libcaptive never waits.
135 * Returns: libcaptive returns %STATUS_SUCCESS (interval passed).
137 NTSTATUS KeDelayExecutionThread(KPROCESSOR_MODE WaitMode,BOOLEAN Alertable,PLARGE_INTEGER Interval)
139 g_return_val_if_fail(WaitMode==KernelMode,STATUS_INVALID_PARAMETER);
140 g_return_val_if_fail(Alertable==FALSE,STATUS_INVALID_PARAMETER);
141 g_return_val_if_fail(Interval!=NULL,STATUS_INVALID_PARAMETER);
143 g_log(G_LOG_DOMAIN,G_LOG_LEVEL_DEBUG,"%s: Interval=%lld, returning STATUS_SUCCESS",G_STRLOC,
144 (long long)Interval->QuadPart);
146 return STATUS_SUCCESS;