參數(shù)資料
型號: HIF_SPEC
英文描述: EZ-030 Demonstration Board Theory of Operation Host Interface (HIF) Specification
中文描述: 易- 030演示板的經(jīng)營理論主機接口(誘導(dǎo)因子)規(guī)格
文件頁數(shù): 61/118頁
文件大?。?/td> 356K
代理商: HIF_SPEC
Host Interface (HIF) Specification
3–37
Service 33 – tmpnam
Return a Temporary Name
Description
This service generates a string that can be used as a temporary file pathname.
A different name is generated each time it is called. The name is guaranteed
not to duplicate any existing filename. The argument passed in
lr2
should be a
valid pointer to a buffer that is large enough to contain the constructed
filename. User programs are required to allocate a minimum of 128 bytes for
this purpose.
If the argument in
lr2
contains a NULL pointer, the HIF service routine should
treat this as an error condition and return a nonzero error number in global
register
gr121
.
The HIF specification sets no standards for the format or content of legal
pathnames; these are determined by individual operating-system requirements.
Each implementation must undertake to construct a valid filename that is also
unique.
Register Usage
Type
Regs
Contents
Description
Calling:
gr121
33 (0x21)
Service number
lr2
addrptr
A pointer to buffer into which the
filename is to be stored
Success: pointer to the temporary
filename string
Failure: =0 (NULL pointer)
Returns:
gr96
filename
gr121
0x80000000
Logical TRUE, service successful
errcode
Error number, service not successful
(implementation dependent)
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