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Replaced the call to system("sync") in SpinUpDisk() with fdatasync(f) to avoid problems on NPTL systems

This commit is contained in:
Klaus Schmidinger 2005-02-19 13:51:44 +01:00
parent 605cd54280
commit 4871f1188e
3 changed files with 9 additions and 2 deletions
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4
CONTRIBUTORS
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@ -1275,3 +1275,7 @@ Wolfgang Rohdewald <wolfgang@rohdewald.de>
Chad Flynt <hoochster@sofnet.com>
for suggestions and experiments regarding the buffer reserve in cTransfer
Chris Warren <dvb@ixalon.net>
for pointing out that the call to system("sync") in SpinUpDisk() should be
replaced with fsync(f) to avoid problems on NPTL systems

2
HISTORY
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@ -3424,3 +3424,5 @@ Video Disk Recorder Revision History
(thanks to Marco Schlüßler).
- Fixed calling cStatus::MsgChannelSwitch() in cDevice::SetChannel() (thanks to
Marco Schlüßler).
- Replaced the call to system("sync") in SpinUpDisk() with fdatasync(f) to avoid
problems on NPTL systems (thanks to Chris Warren for pointing this out).

5
tools.c
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@ -4,7 +4,7 @@
* See the main source file 'vdr.c' for copyright information and
* how to reach the author.
*
* $Id: tools.c 1.89 2005/02/05 10:10:30 kls Exp $
* $Id: tools.c 1.90 2005/02/19 13:43:03 kls Exp $
*/
#include "tools.h"
@ -454,8 +454,9 @@ bool SpinUpDisk(const char *FileName)
int f = open(buf, O_WRONLY | O_CREAT, S_IRUSR | S_IWUSR | S_IRGRP | S_IROTH);
// O_SYNC doesn't work on all file systems
if (f >= 0) {
if (fdatasync(f) < 0)
LOG_ERROR_STR(buf);
close(f);
system("sync");
remove(buf);
gettimeofday(&tp2, NULL);
double seconds = (((long long)tp2.tv_sec * 1000000 + tp2.tv_usec) - ((long long)tp1.tv_sec * 1000000 + tp1.tv_usec)) / 1000000.0;