The T_APPQTRANS class represents run-time attributes of transactions associated with application queues.
It is not possible to retrieve all instances of this class by leaving all key fields unset. Instead, sufficient key fields must be specified to explicitly target a single application queue space. For example, if all key fields except TA_XID are set in an request using tpcall(3), then all T_APPQTRANS objects associated with the specified queue space will be retrieved.
It is important to keep in mind that transactions represented by objects of this class are not necessarily associated with the application in which they are retrieved. Care must be taken when heuristically committing or aborting a transaction because the transaction may actually belong to or have an effect on another application. The value of the TA_XID attribute is not guaranteed to be unique across applications.
TA_XID: string[1..78]
tx_info(3) and mapped to a string representation. The data in this field should not be interpreted directly by the user except for equality comparison.
TA_APPQSPACENAME: string[1..15]
TA_QMCONFIG: string[1..78]
TA_LMID: string[1..30] (no comma)
TA_STATE:
GET: {ACTive|ABortonlY|ABorteD|COMcalled|REAdy|DECided|HAbord|HCommit}
GET operation retrieves run-time information about the selected transactions. The following list describes the meaning of the TA_STATE attribute returned in response to a GET request. States not listed will not be returned. All states are ACTive equivalent for purposes of permissions checking.
SET: {HABort|HCOmmit}
SET operation updates the state of the selected transactions. The following list describes the meaning of the TA_STATE attribute returned by a SET request. States not listed can not be set.
The existing FML32 and ATMI functions necessary to support administrative interaction with BEA TUXEDO system MIBs, as well as the header file and field table mentioned on this reference page, are available on all supported native and workstation platforms.
This MIB is provided only on BEA TUXEDO sites and later, both native and Workstation.
If a site running a BEA TUXEDO release earlier than Release 6.0 is active in the application, then administrative access through this MIB is limited as follows.
SET operations are not allowed.
If sites of differing releases, both greater than or equal to Release 6.0, are interoperating, then information on the older site is available for access and update as defined on the MIB reference page for that release and may be a subset of the information available in the later release.
Following is a set of code fragments that illustrate how to perform various operations on application queue spaces, queues, messages, and transactions.
Each fragment should be preceded by code that allocates an After the buffer is populated, each fragment should be followed by code that sends the request and receives the reply, such as the following:
See The field table The following header files are needed.
Creating an application queue space typically involves two operations: the first to create the BEA TUXEDO system device in which the queue space will be allocated, and the second to create the queue space itself.
The following code creates a new queue in the queue space created in the previous example.
To list the application queue spaces known to an application, a two-level search is used. First, the groups using the /Q transaction manager Examples
FML32 typed buffer, such as the following:
rqbuf = tpalloc("FML32", NULL, 0);flags = TPNOTRAN | TPNOCHANGE | TPSIGRSTRT;
rval = tpcall(".TMIB", rqbuf, 0, rpbuf, rplen, flags);MIB(5) for additional information.
Field Tables
tpadm must be available in the environment to allow access to attribute field identifiers. This can be done at the shell level as follows:
$ FIELDTBLS=tpadm
$ FLDTBLDIR=${TUXDIR}/udataobj
$ export FIELDTBLS FLDTBLDIR Header Files
#include <atmi.h>
#include <fml32.h>
#include <tpadm.h> Create an Application Queue Space
/* Allocate the buffer; see above */
/* Build the request to create a new device on SITE1 */
Fchg32(rqbuf, TA_OPERATION, 0, "SET", 0);
Fchg32(rqbuf, TA_CLASS, 0, "T_DEVICE", 0);
Fchg32(rqbuf, TA_STATE, 0, "NEW", 0);
Fchg32(rqbuf, TA_CFGDEVICE, 0, "/dev/q/dsk001", 0);
Fchg32(rqbuf, TA_LMID, 0, "SITE1", 0);
size = 500;
Fchg32(rqbuf, TA_DEVSIZE, 0, (char *)size, 0);
/* Make the request; see above */
/* Reinitialize the same buffer for reuse */
Finit32(rqbuf, (FLDLEN) Fsizeof32(rqbuf));
/* Build the request to create the queue space */
Fchg32(rqbuf, TA_OPERATION, 0, "SET", 0);
Fchg32(rqbuf, TA_CLASS, 0, "T_APPQSPACE", 0);
Fchg32(rqbuf, TA_STATE, 0, "NEW", 0);
Fchg32(rqbuf, TA_APPQSPACENAME, 0, "QSPACE1", 0);
Fchg32(rqbuf, TA_QMCONFIG, 0, "/dev/q/dsk001", 0);
Fchg32(rqbuf, TA_LMID, 0, "SITE1", 0);
Fchg32(rqbuf, TA_ERRORQNAME, 0, "errque", 0);
ipckey = 123456;
Fchg32(rqbuf, TA_IPCKEY, 0, (char *)ipckey, 0);
maxmsg = 100;
Fchg32(rqbuf, TA_MAXMSG, 0, (char *)maxmsg, 0);
maxpages = 200;
Fchg32(rqbuf, TA_MAXPAGES, 0, (char *)maxpages, 0);
maxproc = 50;
Fchg32(rqbuf, TA_MAXPROC, 0, (char *)maxproc, 0);
maxqueues = 10;
Fchg32(rqbuf, TA_MAXQUEUES, 0, (char *)maxqueues, 0);
maxtrans = 100;
Fchg32(rqbuf, TA_MAXTRANS, 0, (char *)maxtrans, 0);
/* Make the request; see above */ Add a Queue to an Application Queue Space
/* Build the request */
Fchg32(rqbuf, TA_OPERATION, 0, "SET", 0);
Fchg32(rqbuf, TA_CLASS, 0, "T_APPQ", 0);
Fchg32(rqbuf, TA_STATE, 0, "NEW", 0);
Fchg32(rqbuf, TA_APPQNAME, 0, "errque", 0);
Fchg32(rqbuf, TA_APPQSPACENAME, 0, "QSPACE1", 0);
Fchg32(rqbuf, TA_QMCONFIG, 0, "/dev/q/dsk001", 0);
Fchg32(rqbuf, TA_LMID, 0, "SITE1", 0);
Fchg32(rqbuf, TA_APPQORDER, 0, "PRIO", 0);
/* Make the request; see above */ List Application Queue Spaces Known to the Application
TMS_QM are retrieved from the application configuration, and then the queue space referenced by each group is retrieved. The following code fragment assumes that each GROUP entry involving a queue space has a single logical machine associated with it (i.e., server migration is not used).
Listing 0-1
List Application Queue Spaces Known to the Application
/* Build the request to retrieve all TMS_QM groups */
Fchg32(rqbuf, TA_OPERATION, 0, "GET", 0);
Fchg32(rqbuf, TA_CLASS, 0, "T_GROUP", 0);
Fchg32(rqbuf, TA_TMSNAME, 0, "TMS_QM", 0);
fldid1 = TA_OPENINFO;
fldid2 = TA_LMID;
Fchg32(rqbuf, TA_FILTER, 0, (char *)fldid1, 0);
Fchg32(rqbuf, TA_FILTER, 0, (char *)fldid2, 1);
/* Make the request, assuming we are joined to the application */
rval = tpcall(".TMIB", rqbuf, 0, rpbuf, rplen, flags);
/* For each TMS_QM group, build the request to retrieve its queue space */
rval = Fget32(*rpbuf, TA_OCCURS, 0, (char *)occurs, NULL);
for (i = 0; i occurs; i++) {
/* Reinitialize the buffer and set all common attributes */
Finit32(rqbuf, (FLDLEN) Fsizeof32(rqbuf));
Fchg32(rqbuf, TA_OPERATION, 0, "GET", 0);
Fchg32(rqbuf, TA_CLASS, 0, "T_APPQSPACE", 0);
/* Get the OPENINFO to determine device and queue space name */
/* OPENINFO has the format <resource-mgr>:<qmconfig>:<appqspacename> */
/* or on NT/Netware <resource-mgr>:<qmconfig>;<appqspacename> */
rval = Fget32(rpbuf, TA_OPENINFO, i, openinfo, NULL);
/* The device is the 2nd field in OPENINFO */
qmconfig = strchr(openinfo, ':') + 1;
/* The queue space name is the 3rd field in OPENINFO */
#if defined(_TMDOWN) || defined(_TM_NETWARE)
#define pathsep ";" /* separtor for PATH */
#else
#define pathsep ":" /* separtor for PATH */
#endif
appqspacename = strchr(qmconfig, pathsep);
appqspacename[0] = '\e0'; /* null-terminate qmconfig */
appqspacename++; /* bump past the null */
/* Set the APPQSPACENAME and QMCONFIG keys */
Fchg32(rqbuf, TA_APPQSPACENAME, 0, appqspacename, 0);
Fchg32(rqbuf, TA_QMCONFIG, 0, qmconfig, 0);
/* Get the LMID (assume no migration for this group) */
rval = Fget32(rpbuf, TA_LMID, i, lmid, NULL);
Fchg32(rqbuf, TA_LMID, 0, lmid, 0);
/* Make the request */
rval = tpcall(".TMIB", rqbuf, 0, rpbuf2, rplen2, flags);
}
The above technique does not find any queue space that has been created but does not yet have a corresponding GROUP entry in the application configuration. Such queue spaces must be retrieved by knowing a priori the key fields (i.e., TA_APPQSPACENAME, TA_QMCONFIG, and TA_LMID) for the queue space.
The following code retrieves all messages in the queue STRING in the queue space QSPACE1 in device /dev/q/dsk001 on logical machine SITE1.
/* Build the request */ Fchg32(rqbuf, TA_OPERATION, 0, "GET", 0);
Fchg32(rqbuf, TA_CLASS, 0, "T_APPQMSG", 0);
Fchg32(rqbuf, TA_APPQNAME, 0, "STRING", 0);
Fchg32(rqbuf, TA_APPQSPACENAME, 0, "QSPACE1", 0);
Fchg32(rqbuf, TA_QMCONFIG, 0, "/dev/q/dsk001", 0);
Fchg32(rqbuf, TA_LMID, 0, "SITE1", 0);
/* Make the request; see above */
The following fragment retrieves all transactions involving (any queue in) the queue space QSPACE1.
/* Build the request */ Fchg32(rqbuf, TA_OPERATION, 0, "GET", 0);
Fchg32(rqbuf, TA_CLASS, 0, "T_APPQTRANS", 0);
Fchg32(rqbuf, TA_APPQSPACENAME, 0, "QSPACE1", 0);
Fchg32(rqbuf, TA_QMCONFIG, 0, "/dev/q/dsk001", 0);
Fchg32(rqbuf, TA_LMID, 0, "SITE1", 0);
/* Make the request; see above */
${TUXDIR}/include/tpadm.h ${TUXDIR}/udataobj/tpadm
Fintro(3), Fadd32(3), Fchg32(3), Ffind32(3), tpalloc(3), tprealloc(3), tpcall(3), tpacall(3), tpgetrply(3), tpadmcall(3), tpenqueue(3), tpdequeue(3), MIB(5), TM_MIB(5), BEA TUXEDO Administrator's Guide, TUXEDO Programmer's Guide