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Code Issues Releases Wiki Activity

No longer waiting inside cIndexFile::CatchUp() to avoid shortly blocking replay at the end of a recording

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This commit is contained in:
Klaus Schmidinger 2003-05-18 15:21:14 +02:00
parent c6f6e881f8
commit a28e2ef5b5
2 changed files with 44 additions and 48 deletions
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2
HISTORY
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@ -2170,3 +2170,5 @@ Video Disk Recorder Revision History
Endriss for reporting this one).
- Fixed EPG bugfix statistics to avoid log entires for undefined channels (thanks
to Lars Bläser for reporting this one).
- No longer waiting inside cIndexFile::CatchUp() to avoid shortly blocking replay
at the end of a recording.

90
recording.c
View File

@ -4,7 +4,7 @@
* See the main source file 'vdr.c' for copyright information and
* how to reach the author.
*
* $Id: recording.c 1.77 2003/05/11 13:09:08 kls Exp $
* $Id: recording.c 1.78 2003/05/18 15:17:45 kls Exp $
*/
#include "recording.h"
@ -764,9 +764,6 @@ void cRecordingUserCommand::InvokeCommand(const char *State, const char *Recordi
#define INDEXFILESUFFIX "/index.vdr"
// The maximum time to wait before giving up while catching up on an index file:
#define MAXINDEXCATCHUP 2 // seconds
// The minimum age of an index file for considering it no longer to be written:
#define MININDEXAGE 3600 // seconds
@ -850,50 +847,47 @@ bool cIndexFile::CatchUp(int Index)
{
// returns true unless something really goes wrong, so that 'index' becomes NULL
if (index && f >= 0) {
for (int i = 0; i <= MAXINDEXCATCHUP && (Index < 0 || Index >= last); i++) {
struct stat buf;
if (fstat(f, &buf) == 0) {
if (time(NULL) - buf.st_mtime > MININDEXAGE) {
// apparently the index file is not being written any more
close(f);
f = -1;
break;
}
int newLast = buf.st_size / sizeof(tIndex) - 1;
if (newLast > last) {
if (size <= newLast) {
size *= 2;
if (size <= newLast)
size = newLast + 1;
}
index = (tIndex *)realloc(index, size * sizeof(tIndex));
if (index) {
int offset = (last + 1) * sizeof(tIndex);
int delta = (newLast - last) * sizeof(tIndex);
if (lseek(f, offset, SEEK_SET) == offset) {
if (safe_read(f, &index[last + 1], delta) != delta) {
esyslog("ERROR: can't read from index");
free(index);
index = NULL;
close(f);
f = -1;
break;
}
last = newLast;
}
else
LOG_ERROR_STR(fileName);
}
else
esyslog("ERROR: can't realloc() index");
}
}
else
LOG_ERROR_STR(fileName);
if (Index < last)
break;
sleep(1);
}
if (Index < 0 || Index >= last) {
struct stat buf;
if (fstat(f, &buf) == 0) {
if (time(NULL) - buf.st_mtime > MININDEXAGE) {
// apparently the index file is not being written any more
close(f);
f = -1;
return true;
}
int newLast = buf.st_size / sizeof(tIndex) - 1;
if (newLast > last) {
if (size <= newLast) {
size *= 2;
if (size <= newLast)
size = newLast + 1;
}
index = (tIndex *)realloc(index, size * sizeof(tIndex));
if (index) {
int offset = (last + 1) * sizeof(tIndex);
int delta = (newLast - last) * sizeof(tIndex);
if (lseek(f, offset, SEEK_SET) == offset) {
if (safe_read(f, &index[last + 1], delta) != delta) {
esyslog("ERROR: can't read from index");
free(index);
index = NULL;
close(f);
f = -1;
return true;
}
last = newLast;
}
else
LOG_ERROR_STR(fileName);
}
else
esyslog("ERROR: can't realloc() index");
}
}
else
LOG_ERROR_STR(fileName);
}
}
return index != NULL;
}