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ogzBuffer.cc
Go to the documentation of this file.
Or view
the newest version in sPHENIX GitHub for file ogzBuffer.cc
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#include "
ogzBuffer.h
"
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#include "
BufferConstants.h
"
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// the constructor first ----------------
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#ifndef WIN32
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ogzBuffer::ogzBuffer
(
int
fdin,
PHDWORD
* where,
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const
int
length
,
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const
int
level
,
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const
int
irun,
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const
int
iseq):
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ophBuffer
(fdin,where,length,irun,iseq)
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#
else
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ogzBuffer
::
ogzBuffer
(const char *fpp,
PHDWORD
* where,
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const int length,
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int &
status
,
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const int level,
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const int irun,
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const int iseq):
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ophBuffer
(fpp,where,length,
status
,irun,iseq)
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#endif
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{
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// get a buffer for zlib
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compressionlevel
=
level
;
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outputarraylength
= (int)(length *1.1) + 2048;
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outputarray
=
new
PHDWORD
[
outputarraylength
];
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}
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// ----------------------------------------------------------
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// returns the number of bytes written, including record wasted space.
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//
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int
ogzBuffer::writeout
()
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{
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if
(!
dirty
)
return
0;
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if
(!
has_end
)
addEoB
();
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uLongf outputlength_in_bytes =
outputarraylength
*4;
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uLong bytes_to_be_written =
bptr
->
Length
;
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compress2 ( (Bytef*) &
outputarray
[4], &outputlength_in_bytes, (Bytef*)
bptr
,
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bytes_to_be_written,
compressionlevel
);
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outputarray
[0] = outputlength_in_bytes +4*
BUFFERHEADERLENGTH
;
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outputarray
[1] =
GZBUFFERMARKER
;
// -518;
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outputarray
[2] =
bptr
->
Bufseq
;
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outputarray
[3] =
bptr
->
Length
;
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unsigned
int
ip =0;
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char
*cp = (
char
*)
outputarray
;
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while
(ip<
outputarray
[0])
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{
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int
n
=
write
(
fd
, cp,
BUFFERBLOCKSIZE
);
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if
( n !=
BUFFERBLOCKSIZE
)
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{
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std::cout <<
" could not write output, bytes written: "
<< n << std::endl;
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return
0;
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}
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cp +=
BUFFERBLOCKSIZE
;
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ip +=
BUFFERBLOCKSIZE
;
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}
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dirty
= 0;
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byteswritten
+= ip;
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return
0;
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}
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// ----------------------------------------------------------
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ogzBuffer::~ogzBuffer
()
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{
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writeout
();
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delete
[]
outputarray
;
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}
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online_distribution
blob
master
newbasic
ogzBuffer.cc
Built by
Jin Huang
. updated:
Sat Feb 17 2024 22:18:27
using
1.8.2 with
sPHENIX GitHub integration