pSOSystem System Calls - Read

annex_f pHILE+ System Calls
annex_f Allocates contiguous blocks to a file.
#include
unsigned long annex_f(
unsigned long fid, /* file identifier */
unsigned long alloc_size, /* number of blocks to add */
unsigned long *blkcount /* number of blocks added */
)
Volume Types
Description
Arguments
Return Value
Error Codes
pHILE+ formatted volumes.
annex_f() extends the physical size of a file on a pHILE+ formatted volume by
adding a group of contiguous blocks.
fid Identifies the file.
alloc_size Specifies the desired number of blocks to add to the file.
blkcount Points to the variable where annex_f() stores the number of
blocks actually allocated. This number can be less than
alloc_size, in which case blkcount represents the largest
group of contiguous blocks available on the volume.
This system call returns 0 on success or an error code on failure.
Hex Mnemonic Description
0x2015 E_RO Operation not allowed on read-only
system files, directories, or mounted
volumes.
2-8 pSOSystem System Calls