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GLAST/LAT > DAQ and FSW > FSW > Doxygen Index > LSW / V1-0-0

Constituent: lsw     Tag: mv2304

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LSW_snap.c File Reference

Facilities to snapshot a task trace buffer. More...

#include <string.h>
#include "PBS/FORK.h"
#include "PBS/RW.ih"
#include "PBS/WCT.h"
#include "CCSDS/CCSDS_pkt.h"
#include "ITC/ITC_pubdefs.h"
#include "LSF/LSF.h"
#include "LSF/LSF_ids.h"
#include "LSW/LSW_msgs.h"
#include "LSW_prvdefs.h"

Include dependency graph for LSW_snap.c:

Functions
static void	forkSnapStack (FORK_cb_prm *prm, FORK_msg_hdr *hdr)
	Service a request to take a trace buffer snapshot.
static void	forkSnapTrace (FORK_cb_prm *prm, FORK_msg_hdr *hdr)
	Service a request to take a trace buffer snapshot.
static char *	formatHeader (char *qipay, unsigned int size, unsigned int apid, unsigned int typ, unsigned int ver)
	Format the header of a telemetry block.
static unsigned int	sendCTDB (LSW_Control *lcb, TRC_ForkMsg *msg, ITC_QueueItem *qitem, char *qipay, unsigned int qilen)
	Send a snapshot to the CTDB bus (1553).
static unsigned int	sendSDI (LSW_Control *lcb, TRC_ForkMsg *msg, ITC_QueueItem *qitem, char *qipay, unsigned int qilen)
	Send a snapshot to the science data interface.
static void	sendSDI_cb (ITC_QueueItem *qitem, unsigned int status, void *prm0, void *prm1, void *prm2, unsigned int tx)
	Clean up after sending a trace snapshot to the SDI.
FORK_cb_status	LSW_forkSnap (FORK_cb_prm *prm, FORK_msg_hdr *hdr)
	Service a request to take a snapshot.

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Detailed Description

Facilities to snapshot a task trace buffer.

CVS $Id: LSW_snap.c,v 1.1 2006/12/20 01:25:28 apw Exp $

Author:

A.P.Waite

LSW_snap.c provides facilities to snapshot a trace buffer and have the result sent to either the CTDB or the SDI.

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Function Documentation

static void forkSnapStack (  FORK_cb_prm *  prm, FORK_msg_hdr *  hdr )  [static]

Service a request to take a trace buffer snapshot. forkSnap() services a request to take a trace buffer snapshot.

static void forkSnapTrace (  FORK_cb_prm *  prm, FORK_msg_hdr *  hdr )  [static]

Service a request to take a trace buffer snapshot. forkSnap() services a request to take a trace buffer snapshot.

static char * formatHeader (  char *  qipay, unsigned int  size, unsigned int  apid, unsigned int  typ, unsigned int  ver )  [static]

Format the header of a telemetry block. Parameters: qipay  (in) Start of CCSDS header size  (in) Size of snapshot (just the data portion, in bytes) apid  (in) APID to place in CCSDS header typ  (in) Type of snapshot ver  (in) Format version of snapshot Return values: NULL  Format failed x  Pointer to the snapshot contributor buffer formatHeader() formats the header portions of a telemetry block. It assumes an SDI target, so the routine that sends the telemetry to the CTDB will have to do a little extra work on the CCSDS portion of the header.

FORK_cb_status LSW_forkSnap (  FORK_cb_prm *  prm, FORK_msg_hdr *  hdr )

Service a request to take a snapshot. LSW_forkSnap() services a request to take a snapshot.

static unsigned int sendCTDB (  LSW_Control *  lcb, TRC_ForkMsg *  msg, ITC_QueueItem *  qitem, char *  qipay, unsigned int  qilen )  [static]

Send a snapshot to the CTDB bus (1553). Parameters: lcb  (in) The LSW control block msg  (in) An LSW specific fork message qitem  (in) Queue item to be sent to SDI qipay  (in) Pointer to queue item payload qilen  (in) Length of payload sendCTDB() parcels up and sends a snapshot to the CTDB bus (1553).

static unsigned int sendSDI (  LSW_Control *  lcb, TRC_ForkMsg *  msg, ITC_QueueItem *  qitem, char *  qipay, unsigned int  qilen )  [static]

Send a snapshot to the science data interface. Parameters: lcb  (in) The LSW control block msg  (in) An LSW specific fork message qitem  (in) Queue item to be sent to SDI qipay  (in) Pointer to queue item payload qilen  (in) Length of payload sendSDI() parcels up and sends a snapshot to the science data interface.

static void sendSDI_cb (  ITC_QueueItem *  qitem, unsigned int  status, void *  prm0, void *  prm1, void *  prm2, unsigned int  tx )  [static]

Clean up after sending a trace snapshot to the SDI. Parameters: qitem  (in) Queue item status  (in) Status from ITC_send() prm0  (in) User param 0 (LSW control block) prm1  (in) User param 1 (fork message block) prm2  (in) User param 2 (unused) tx  (in) Failure during send phase of ITC_send() (unused) sendSDI_cb() is the callback routine that's called once the dump has been sent to the SDI.

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