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The new class cUnbufferedFile is used for the recording files to avoid thrashing the file system cache

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This commit is contained in:
Klaus Schmidinger
2005-10-31 13:14:26 +01:00
parent 998e3bd2c7
commit 697261c981
11 changed files with 217 additions and 69 deletions
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12
recorder.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: recorder.c 1.15 2005/08/14 10:53:28 kls Exp $
* $Id: recorder.c 1.16 2005/10/31 12:35:29 kls Exp $
*/
#include <stdarg.h>
@@ -28,7 +28,7 @@ private:
cIndexFile *index;
uchar pictureType;
int fileSize;
int recordFile;
cUnbufferedFile *recordFile;
time_t lastDiskSpaceCheck;
bool RunningLowOnDiskSpace(void);
bool NextFile(void);
@@ -50,7 +50,7 @@ cFileWriter::cFileWriter(const char *FileName, cRemux *Remux)
lastDiskSpaceCheck = time(NULL);
fileName = new cFileName(FileName, true);
recordFile = fileName->Open();
if (recordFile < 0)
if (!recordFile)
return;
// Create the index file:
index = new cIndexFile(FileName, true);
@@ -81,13 +81,13 @@ bool cFileWriter::RunningLowOnDiskSpace(void)
bool cFileWriter::NextFile(void)
{
if (recordFile >= 0 && pictureType == I_FRAME) { // every file shall start with an I_FRAME
if (recordFile && pictureType == I_FRAME) { // every file shall start with an I_FRAME
if (fileSize > MEGABYTE(Setup.MaxVideoFileSize) || RunningLowOnDiskSpace()) {
recordFile = fileName->NextFile();
fileSize = 0;
}
}
return recordFile >= 0;
return recordFile != NULL;
}
void cFileWriter::Action(void)
@@ -102,7 +102,7 @@ void cFileWriter::Action(void)
if (NextFile()) {
if (index && pictureType != NO_PICTURE)
index->Write(pictureType, fileName->Number(), fileSize);
if (safe_write(recordFile, p, Count) < 0) {
if (recordFile->Write(p, Count) < 0) {
LOG_ERROR_STR(fileName->Name());
break;
}