View Issue Details
| ID | Project | Category | View Status | Date Submitted | Last Update |
|---|---|---|---|---|---|
| 0000501 | 1003.1(2008)/Issue 7 | System Interfaces | public | 2011-10-12 11:31 | 2019-06-10 08:55 |
| Reporter | geoffclare | Assigned To | ajosey | ||
| Priority | normal | Severity | Objection | Type | Error |
| Status | Closed | Resolution | Accepted As Marked | ||
| Name | Geoff Clare | ||||
| Organization | The Open Group | ||||
| User Reference | |||||
| Section | fdatasync | ||||
| Page Number | 815 | ||||
| Line Number | 27225 | ||||
| Interp Status | Approved | ||||
| Final Accepted Text | see 0000501:0000995 | ||||
| Summary | 0000501: fdatasync() EBADF and "open for writing" | ||||
| Description | Discussion on the mailing list identified an editorial mistake in the description of the fdatasync() EBADF error: "open for writing" should originally have been "open for reading or writing". However, with the addition of O_EXEC and O_SEARCH this is no longer an editorial matter, as the group needs to decide whether to require, allow, or disallow EBADF for file descriptors opened with O_EXEC or O_SEARCH. Currently the fsync() EBADF just says "The fildes argument is not a valid descriptor", so the proposed change makes fdatasync() the same for consistency. Alternatively, if it is felt that implementors should be given the option of returning an EBADF error for file descriptors opened with O_EXEC or O_SEARCH, then as well as the proposed change a "may fail" EBADF error should be added to both pages which says "The fildes argument is not a valid file descriptor open for reading or writing". | ||||
| Desired Action | Change: The fildes argument is not a valid file descriptor open for writing. to: The fildes argument is not a valid file descriptor. | ||||
| Tags | tc2-2008 | ||||
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In addition to the Desired Action, also make these changes: At line 27232 (APPLICATION USAGE), change "None." to: Note that even if the file descriptor is not open for writing, if there are any pending write requests on the underlying file, then that I/O will be completed prior to the return of fdatasync( ). |
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Interpretation response ------------------------ The standard states that fdatasync() shall fail on a read-only file descriptor, and conforming implementations must conform to this. However, concerns have been raised about this which are being referred to the sponsor. Rationale: ------------- The access mode of the file descriptor does not affect whether there are pending I/O operations on the underlying file. Notes to the Editor (not part of this interpretation): ------------------------------------------------------- Make the changes in the Desired Action and 0000501:0000994 |
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Interpretation proposed 29 June 2012 for final 45 day review |
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Interpretation approved 30 Aug 2012 |
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aio_fsync has the same issue regarding EBADF and "must be opened for writing" (a requirement which has been enforced in the glibc implementation, for example, causing the function to be unusable for directory file descriptors, for example) |
| Date Modified | Username | Field | Change |
|---|---|---|---|
| 2011-10-12 11:31 | geoffclare | New Issue | |
| 2011-10-12 11:31 | geoffclare | Status | New => Under Review |
| 2011-10-12 11:31 | geoffclare | Assigned To | => ajosey |
| 2011-10-12 11:31 | geoffclare | Name | => Geoff Clare |
| 2011-10-12 11:31 | geoffclare | Organization | => The Open Group |
| 2011-10-12 11:31 | geoffclare | Section | => fdatasync |
| 2011-10-12 11:31 | geoffclare | Page Number | => 815 |
| 2011-10-12 11:31 | geoffclare | Line Number | => 27225 |
| 2011-10-12 11:31 | geoffclare | Interp Status | => --- |
| 2011-10-20 15:49 | eblake | Note Added: 0000994 | |
| 2011-10-20 15:52 | eblake | Note Added: 0000995 | |
| 2011-10-20 15:52 | eblake | Tag Attached: tc2-2008 | |
| 2011-10-20 15:53 | eblake | Final Accepted Text | => see 0000501:0000995 |
| 2011-10-20 15:53 | eblake | Status | Under Review => Interpretation Required |
| 2011-10-20 15:53 | eblake | Resolution | Open => Accepted As Marked |
| 2011-10-20 15:53 | eblake | Desired Action Updated | |
| 2011-10-20 15:53 | eblake | Interp Status | --- => Pending |
| 2012-06-29 16:18 | ajosey | Interp Status | Pending => Proposed |
| 2012-06-29 16:18 | ajosey | Note Added: 0001296 | |
| 2012-08-30 09:10 | ajosey | Interp Status | Proposed => Approved |
| 2012-08-30 09:10 | ajosey | Note Added: 0001337 | |
| 2013-03-19 15:17 | xroche | Note Added: 0001496 | |
| 2013-03-19 15:39 | nick | Issue cloned: 0000671 | |
| 2013-03-19 15:39 | nick | Relationship added | related to 0000671 |
| 2019-06-10 08:55 | agadmin | Status | Interpretation Required => Closed |
