Internal time differences now use monotonic time source if available.

This also implies the removal of the winmm.lib dependency for WIN32.
This commit is contained in:
Yang Tse 2008-05-09 16:31:51 +00:00
parent d708ef6731
commit 19479ea021
17 changed files with 191 additions and 223 deletions

View file

@ -7,7 +7,7 @@
CC = wcc386
CFLAGS = -3r -mf -d3 -hc -zff -zgf -zq -zm -s -fr=con -w2 -fpi -oilrtfm &
-bt=nt -d+ -dWIN32 -dHAVE_STRTOLL -dWITHOUT_MM_LIB &
-bt=nt -d+ -dWIN32 -dHAVE_STRTOLL &
-dSIZEOF_CURL_OFF_T=8 -dCURLDEBUG -dENABLE_IPV6 -dHAVE_WINSOCK2_H &
-I..\include -I..\lib

View file

@ -104,7 +104,7 @@ ifndef USE_LDAP_OPENLDAP
curl_LDADD += -lwldap32
endif
endif
curl_LDADD += -lws2_32 -lwinmm
curl_LDADD += -lws2_32
COMPILE = $(CC) $(INCLUDES) $(CFLAGS)
# Makefile.inc provides the CSOURCES and HHEADERS defines

View file

@ -10,8 +10,6 @@
## Comments to: Troy Engel <tengel@sonic.net>
## Updated by: Craig Davison <cd@securityfocus.com>
## release-ssl added by Miklos Nemeth <mnemeth@kfkisystems.com>
## winmm.lib added by Miklos Nemeth <mnemeth@kfkisystems.com> to
## support timeGetTime() in curlutil.c
#
#############################################################
@ -221,8 +219,8 @@ LFLAGS = $(LFLAGS) $(SSL_IMP_LFLAGS) $(ZLIB_LFLAGS)
!ENDIF
LINKLIBS = $(LINKLIBS) wsock32.lib wldap32.lib winmm.lib
LINKLIBS_DEBUG = $(LINKLIBS_DEBUG) wsock32.lib wldap32.lib winmm.lib
LINKLIBS = $(LINKLIBS) wsock32.lib wldap32.lib
LINKLIBS_DEBUG = $(LINKLIBS_DEBUG) wsock32.lib wldap32.lib
all : release

View file

@ -5,7 +5,7 @@
* | (__| |_| | _ <| |___
* \___|\___/|_| \_\_____|
*
* Copyright (C) 1998 - 2007, Daniel Stenberg, <daniel@haxx.se>, et al.
* Copyright (C) 1998 - 2008, Daniel Stenberg, <daniel@haxx.se>, et al.
*
* This software is licensed as described in the file COPYING, which
* you should have received as part of this distribution. The terms
@ -25,69 +25,70 @@
#include "curlutil.h"
#ifndef HAVE_GETTIMEOFDAY
#if defined(WIN32) && !defined(MSDOS)
#ifdef WIN32
#include <mmsystem.h>
static int gettimeofday(struct timeval *tp, void *nothing)
{
#ifdef WITHOUT_MM_LIB
SYSTEMTIME st;
time_t tt;
struct tm tmtm;
/* mktime converts local to UTC */
GetLocalTime (&st);
tmtm.tm_sec = st.wSecond;
tmtm.tm_min = st.wMinute;
tmtm.tm_hour = st.wHour;
tmtm.tm_mday = st.wDay;
tmtm.tm_mon = st.wMonth - 1;
tmtm.tm_year = st.wYear - 1900;
tmtm.tm_isdst = -1;
tt = mktime (&tmtm);
tp->tv_sec = tt;
tp->tv_usec = st.wMilliseconds * 1000;
#else
/**
** The earlier time calculations using GetLocalTime
** had a time resolution of 10ms.The timeGetTime, part
** of multimedia apis offer a better time resolution
** of 1ms.Need to link against winmm.lib for this
**/
unsigned long Ticks = 0;
unsigned long Sec =0;
unsigned long Usec = 0;
Ticks = timeGetTime();
Sec = Ticks/1000;
Usec = (Ticks - (Sec*1000))*1000;
tp->tv_sec = Sec;
tp->tv_usec = Usec;
#endif /* WITHOUT_MM_LIB */
(void)nothing;
return 0;
}
#else /* WIN32 */
/* non-win32 version of Curl_gettimeofday() */
static int gettimeofday(struct timeval *tp, void *nothing)
{
(void)nothing; /* we don't support specific time-zones */
tp->tv_sec = (long)time(NULL);
tp->tv_usec = 0;
return 0;
}
#endif /* WIN32 */
#endif /* HAVE_GETTIMEOFDAY */
/* Return the current time in a timeval struct */
struct timeval cutil_tvnow(void)
{
/*
** GetTickCount() is available on _all_ Windows versions from W95 up
** to nowadays. Returns milliseconds elapsed since last system boot,
** increases monotonically and wraps once 49.7 days have elapsed.
*/
struct timeval now;
DWORD milliseconds = GetTickCount();
now.tv_sec = milliseconds / 1000;
now.tv_usec = (milliseconds % 1000) * 1000;
return now;
}
#elif defined(HAVE_CLOCK_GETTIME) && defined(CLOCK_MONOTONIC)
struct timeval cutil_tvnow(void)
{
/*
** clock_gettime() is granted to be increased monotonically when the
** monotonic clock is queried. Time starting point is unspecified, it
** could be the system start-up time, the Epoch, or something else,
** in any case the time starting point does not change once that the
** system has started up.
*/
struct timeval now;
struct timespec tsnow;
(void)clock_gettime(CLOCK_MONOTONIC, &tsnow)
now.tv_sec = tsnow.tv_sec;
now.tv_usec = tsnow.tv_nsec / 1000;
return now;
}
#elif defined(HAVE_GETTIMEOFDAY)
struct timeval cutil_tvnow(void)
{
/*
** gettimeofday() is not granted to be increased monotonically, due to
** clock drifting and external source time synchronization it can jump
** forward or backward in time.
*/
struct timeval now;
(void)gettimeofday(&now, NULL);
return now;
}
#else
struct timeval cutil_tvnow(void)
{
/*
** time() returns the value of time in seconds since the Epoch.
*/
struct timeval now;
now.tv_sec = (long)time(NULL);
now.tv_usec = 0;
return now;
}
#endif
/*
* Make sure that the first argument is the more recent time, as otherwise
* we'll get a weird negative time-diff back...