Table of Contents
BldCrtPartition - create AccelNET shared memory partition for use by
Xcrt
BldCrtPartiton creates and initializes the shared memory
partition for use by Xcrt. Usually this function is called by crt(1)
.
This
function creates an initializes a database partition in a manner similiar
to BldMasterPartition(3tbl)
except that it allows another (arbitrary) data
structure to placed in the partition.
The size of the structure is specified
by CCsize and a pointer to the structure is returned in CCpnt. Xcrt uses
this structure to hold data which is private to Xcrt but must be shared
by the two programs (crt and ts) which make up Xcrt.
This function is part
of tblmngr.
HEADER_TBL *BldCrtPartition(
MASTER_SIZE *SZpnt,
char **CCpnt,
int CCsize,
unsigned int key,
char *s_addr,
char *s_wperm,
int *part_key,
int *part_id,
int *part_size,
int *part_wperm,
void **attach_addr
);
- SZpnt
- Pointer to the MASTER_SIZE record which contains the table
size information.
- **CCpnt
Pointer to a pointer in which to return the private data structure pointer.
- CCsize
The size of the private data structure. - key
if key == 0 then IPC_PRIVATE is used else key is used as the shared memory
identifier in the shared mem partition create. - s_addr
attachment address, if this is null the hardcoded default value is used
- s_wperm
- permissions mask, if this is null the hardcoded default value is
used
- part_key
returned value - the shared memory key - part_id
Pointer to an integer in which to return the shared memory id returned
by the call to CreateShMem(3tbl)
. - part_size
returned value - the shared memory partition size - part_wperm
returned value - the shared memory partition permissions - attach_addr
returned value - the attachment address
A pointer to the HEADER_TBL
if successful. NULL is returned on most other failures.
tblmngr(3tbl)
$Id: BldCrtP.3,v 1.4 2008/03/13 14:52:51 kitchen Exp
$
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