InitMsgBuilder Class Reference

#include <InitMsgBuilder.h>

Public Member Functions
uint32	bufferSize () const
uint8 *	dataAddress () const
uint32	headerSize () const
	InitMsgBuilder (void *msg_mem, uint32 size, uint32 run, const Version &v, const char *release_tag, const char *process_name, const char *output_module_label, uint32 output_module_id, const Strings &hlt_names, const Strings &hlt_selections, const Strings &l1_names, uint32 adler32_chksum, const char *host_name)
uint32	run () const
void	setDataLength (uint32 registry_length)
uint32	size () const
uint8 *	startAddress () const

Private Attributes
uint8 *	buf_
uint8 *	data_addr_
uint32	size_

Detailed Description

Definition at line 9 of file InitMsgBuilder.h.

Constructor & Destructor Documentation

InitMsgBuilder::InitMsgBuilder	(	void *	msg_mem,
		uint32	size,
		uint32	run,
		const Version &	v,
		const char *	release_tag,
		const char *	process_name,
		const char *	output_module_label,
		uint32	output_module_id,
		const Strings &	hlt_names,
		const Strings &	hlt_selections,
		const Strings &	l1_names,
		uint32	adler32_chksum,
		const char *	host_name
	)

Definition at line 11 of file InitMsgBuilder.cc.

References buf_, convert(), data_addr_, InitHeader::event_header_size_, MsgTools::fillNames(), h, EventMsgBuilder::headerSize(), InitHeader::init_header_size_, MAX_INITHOSTNAME_LEN, pos, InitHeader::run_, setDataLength(), and InitHeader::version_.

                                                                          :
  buf_((uint8*)buf),size_(size)
{
  InitHeader* h = (InitHeader*)buf_;
  // fixed length parts
  new (&h->version_) Version(v);
  convert(run,h->run_);
  // variable length parts
  uint32 tag_len = strlen(release_tag);
  assert(tag_len < 0x00ff);
  uint8* pos = buf_+sizeof(InitHeader);

  *pos++ = tag_len; // length of release tag
  memcpy(pos,release_tag,tag_len); // copy release tag in
  pos += tag_len;

  //Lets put Process Name (Length and then Name) right after release_tag
  uint32 process_name_len = strlen(process_name);
  assert(process_name_len < 0x00ff);
  //Put process_name_len
  *pos++ = process_name_len;
  //Put process_name
  memcpy(pos,process_name,process_name_len);
  pos += process_name_len;

  // output module label next
  uint32 outmod_label_len = strlen(output_module_label);
  assert(outmod_label_len < 0x00ff);
  *pos++ = outmod_label_len;
  memcpy(pos,output_module_label,outmod_label_len);
  pos += outmod_label_len;

  // output module ID next
  convert(output_module_id, pos);
  pos += sizeof(char_uint32);

  pos = MsgTools::fillNames(hlt_names,pos);
  pos = MsgTools::fillNames(hlt_selections,pos);
  pos = MsgTools::fillNames(l1_names,pos);

  // adler32 check sum of data blob
  convert(adler_chksum, pos);
  pos = pos + sizeof(uint32);

  // put host name (Length and then Name) right after check sum
  //uint32 host_name_len = strlen(host_name);
  // actually make the host_name a fixed length as the init message header size appears in the
  // Init message and only one goes to a file whereas events can come from any node
  // We want the max length to be determined inside this Init Message Builder
  uint32 host_name_len = MAX_INITHOSTNAME_LEN;
  assert(host_name_len < 0x00ff);
  //Put host_name_len
  *pos++ = host_name_len;

  //Put host_name
  uint32 real_len = strlen(host_name);
  if(real_len < host_name_len) {
    char hostname_2use[MAX_INITHOSTNAME_LEN];
    memset(hostname_2use,'\0',host_name_len);
    memcpy(hostname_2use,host_name,real_len);
    memcpy(pos,hostname_2use,host_name_len);
  } else {
    memcpy(pos,host_name,host_name_len);
  }
  pos += host_name_len;

  data_addr_ = pos + sizeof(char_uint32);
  setDataLength(0);

  // Two news fileds added to InitMsg in Proto V3 init_header_size, and event_header_size.
  //Set the size of Init Header Start of buf to Start of desc.
  convert((uint32)(data_addr_ - buf_), h->init_header_size_);

  // 18-Apr-2008, KAB:  create a dummy event message so that we can
  // determine the expected event header size.  (Previously, the event
  // header size was hard-coded.)
  std::vector<bool> dummyL1Bits(l1_names.size());
  std::vector<char> dummyHLTBits(hlt_names.size());
  const uint32 TEMP_BUFFER_SIZE = 256;
  char msgBuff[TEMP_BUFFER_SIZE];  // not large enough for a real event!
  uint32_t adler32 = 0;
  //char host_name[255];
  //int got_host = gethostname(host_name, 255);
  //if(got_host != 0) strcpy(host_name, "noHostNameFoundOrTooLong");
  EventMsgBuilder dummyMsg(&msgBuff[0], TEMP_BUFFER_SIZE, 0, 0, 0, 0, 0,
                           dummyL1Bits, (uint8*) &dummyHLTBits[0],
                           hlt_names.size(), adler32, host_name);

  //Size of Event Header
  uint32 eventHeaderSize = dummyMsg.headerSize();
  convert(eventHeaderSize, h->event_header_size_);
}

Member Function Documentation

uint32 InitMsgBuilder::bufferSize ( ) const

inline

Required by EOF Record Builder

Definition at line 29 of file InitMsgBuilder.h.

References size_.

{return size_;}

uint8* InitMsgBuilder::dataAddress ( ) const

inline

Definition at line 25 of file InitMsgBuilder.h.

References data_addr_.

{ return data_addr_; }

uint32 InitMsgBuilder::headerSize ( ) const

inline

Definition at line 26 of file InitMsgBuilder.h.

References buf_, and data_addr_.

{return data_addr_-buf_;}

uint32 InitMsgBuilder::run

(

void

)

const

Definition at line 129 of file InitMsgBuilder.cc.

References buf_, convert32(), h, and InitHeader::run_.

{
  InitHeader* h = (InitHeader*)buf_;
  return convert32(h->run_);
}

void InitMsgBuilder::setDataLength

(

uint32

registry_length

)

Definition at line 113 of file InitMsgBuilder.cc.

References buf_, convert(), data_addr_, h, InitHeader::header_, and Header::INIT.

Referenced by InitMsgBuilder().

{
  convert(len,data_addr_-sizeof(char_uint32));
  InitHeader* h = (InitHeader*)buf_;
  new (&h->header_) Header(Header::INIT, data_addr_ - buf_ + len);
}

uint32 InitMsgBuilder::size

(

void

)

const

Definition at line 121 of file InitMsgBuilder.cc.

References buf_, HeaderView::size(), and v.

Referenced by edm::FUShmOutputModule::doOutputHeader().

{

  HeaderView v(buf_);
  return v.size();
}

uint8* InitMsgBuilder::startAddress ( ) const

inline

Definition at line 23 of file InitMsgBuilder.h.

References buf_.

Referenced by edm::StreamerFileWriter::doOutputHeader(), edm::FUShmOutputModule::doOutputHeader(), and StreamerOutputFile::write().

{ return buf_; }

Member Data Documentation

uint8* InitMsgBuilder::buf_

private

Definition at line 32 of file InitMsgBuilder.h.

Referenced by headerSize(), InitMsgBuilder(), run(), setDataLength(), size(), and startAddress().

uint8* InitMsgBuilder::data_addr_

private

Definition at line 34 of file InitMsgBuilder.h.

Referenced by dataAddress(), headerSize(), InitMsgBuilder(), and setDataLength().

uint32 InitMsgBuilder::size_

private

Definition at line 33 of file InitMsgBuilder.h.

Referenced by bufferSize().