Open System Services System Calls Reference Manual (G06.29+, H06.08+, J06.03+)

PUT_UNLOCKREC(2) OSS System Calls Reference Manual
NAME
PUT_UNLOCKREC - Unlocks a Guardian file record currently locked by the user
LIBRARY
32-bit H-series and J-series OSS processes: /G/system/zdllnnn/zputdll
64-bit H-series and J-series OSS processes: /G/system/zdllnnn/yputdll
SYNOPSIS
[#include <cextdecs.h>]
#include <pthread.h>
short PUT_UNLOCKREC(
short filenum,
long tag);
PARAMETERS
filenum Specifies the Guardian file number of a Guardian file open instance for the file
containing the record you want unlocked.
tag (Optional) For nowait I/O only. The tag value you define uniquely identifies the
operation associated with this call.
This parameter is supported only for program compatibility; if you provide it, it
is ignored.
DESCRIPTION
The PUT_UNLOCKREC() function is a thread-aware version of the Guardian UNLOCKREC
procedure.
The PUT_UNLOCKREC() function unlocks a record in the specified file currently locked by
the user. The user is defined either as the opener of the file (identified by the filenum value used)
if the file is not audited, or by the transaction (identified by the TRANSID) if the file is audited.
This call unlocks the record at the current position in the file, allowing other users to access that
record. This call has no affect on a record of an audited file if the current transaction has
modified that record.
For programming information about the Guardian UNLOCKREC file-system procedure, see the
Enscribe Programmer’s Guide and the Guardian Programmer’s Guide.
To use this function on systems running H06.21 or later RVUs or J06.10 or later RVUs, you must
perform all of the following tasks:
• Include the pthread.h header file in the application.
• Compile the application using the _PUT_MODEL_ feature test macro or equivalent
compiler command option.
• Link the application to the zputdll library (/G/system/zdllnnn/zputdll).
On systems running H06.24 or later H-series RVUs or J06.13 or later J-series RVUs, you can use
this function with 32-bit or 64-bit applications.
To use this function in a 32-bit application on systems running H06.24 or later RVUs or J06.13 or
later RVUs, perform the same tasks (described above) used to enable the function on systems
running H06.21/J06.10 or later RVUs.
To use this function in a 64-bit application on systems running H06.24 or later RVUs or J06.13 or
later RVUs, you must perform all of the following tasks:
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