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| author | Corinna Vinschen <corinna@vinschen.de> | 2004-04-19 19:29:10 +0000 |
|---|---|---|
| committer | Corinna Vinschen <corinna@vinschen.de> | 2004-04-19 19:29:10 +0000 |
| commit | 0c8731b8f43ff50700432767b34e67a11a713bff (patch) | |
| tree | 0ed0a5a1284fbdfb58307e6c11df8624ad6f3e5d /winsup/cygwin/mtinfo.h | |
| parent | da3c66eb9a72ab2e4dd969118f8e3c63c2beb086 (diff) | |
| download | cygnal-0c8731b8f43ff50700432767b34e67a11a713bff.tar.gz cygnal-0c8731b8f43ff50700432767b34e67a11a713bff.tar.bz2 cygnal-0c8731b8f43ff50700432767b34e67a11a713bff.zip | |
* errno.cc (errmap): Handle ERROR_IO_PENDING.
* fhandler.cc (fhandler_base::open): Make tape I/O asynchronous.
* fhandler.h (class fhandler_dev_tape): Add mt_evt member.
* fhandler_tape.cc (mtinfo_drive::initialize): Initialize async_writes.
(mtinfo_drive::close): Handle async writes.
(mtinfo_drive::read): Add mt_evt parameter. Use overlapped I/O.
(mtinfo_drive::async_wait): New function.
(mtinfo_drive::write): Add mt_evt parameter. Use overlapped I/O.
Handle async writes.
(mtinfo_drive::_set_pos): Handle async writes.
(mtinfo_drive::set_partition): Ditto.
(mtinfo_drive::prepare): Ditto.
(mtinfo_drive::get_status): Drop useless "else". Handle async_writes
flag.
(mtinfo_drive::set_options): Handle async_writes flags.
(fhandler_dev_tape::close): Close mt_evt handle.
(fhandler_dev_tape::raw_read): Create mt_evt handle and use in call
to mtinfo_drive::read.
(fhandler_dev_tape::raw_write): Create mt_evt handle and use in call
to mtinfo_drive::write.
* mtinfo.h (MTINFO_VERSION): Bump.
(enum dirty_state): Add async_write_pending state.
(class mtinfo_drive): Add OVERLAPPED struct "ov". Add async_writes
flag.
(mtinfo_drive::async_wait): Add declaration.
(mtinfo_drive::read): Add mt_evt parameter.
(mtinfo_drive::write): Ditto.
* registry.cc (load_registry_hive): Call enable_restore_privilege
instead of set_process_privilege.
Diffstat (limited to 'winsup/cygwin/mtinfo.h')
| -rw-r--r-- | winsup/cygwin/mtinfo.h | 13 |
1 files changed, 9 insertions, 4 deletions
diff --git a/winsup/cygwin/mtinfo.h b/winsup/cygwin/mtinfo.h index 4cf92bc26..52dd6b24f 100644 --- a/winsup/cygwin/mtinfo.h +++ b/winsup/cygwin/mtinfo.h @@ -9,7 +9,7 @@ Cygwin license. Please consult the file "CYGWIN_LICENSE" for details. */ #define MTINFO_MAGIC 0x179b2af0 -#define MTINFO_VERSION 1 +#define MTINFO_VERSION 2 /* Maximum number of supported partitions per drive. */ #define MAX_PARTITION_NUM 64 @@ -33,7 +33,8 @@ enum dirty_state { clean, has_read, - has_written + has_written, + async_write_pending }; enum lock_state @@ -67,9 +68,11 @@ class mtinfo_drive lock_state lock; TAPE_GET_DRIVE_PARAMETERS _dp; TAPE_GET_MEDIA_PARAMETERS _mp; + OVERLAPPED ov; struct status_flags { unsigned buffer_writes : 1; + unsigned async_writes : 1; unsigned two_fm : 1; unsigned fast_eom : 1; unsigned auto_lock : 1; @@ -101,6 +104,7 @@ class mtinfo_drive int set_blocksize (HANDLE mt, long count); int get_status (HANDLE mt, struct mtget *get); int set_options (HANDLE mt, long options); + int async_wait (HANDLE mt, DWORD *bytes_written); public: void initialize (int num, bool first_time); @@ -108,12 +112,13 @@ public: int get_mp (HANDLE mt); int open (HANDLE mt); int close (HANDLE mt, bool rewind); - int read (HANDLE mt, void *ptr, size_t &ulen); - int write (HANDLE mt, const void *ptr, size_t &len); + int read (HANDLE mt, HANDLE mt_evt, void *ptr, size_t &ulen); + int write (HANDLE mt, HANDLE mt_evt, const void *ptr, size_t &len); int ioctl (HANDLE mt, unsigned int cmd, void *buf); int set_pos (HANDLE mt, int mode, long count, bool sfm_func); IMPLEMENT_STATUS_FLAG (bool, buffer_writes) + IMPLEMENT_STATUS_FLAG (bool, async_writes) IMPLEMENT_STATUS_FLAG (bool, two_fm) IMPLEMENT_STATUS_FLAG (bool, fast_eom) IMPLEMENT_STATUS_FLAG (bool, auto_lock) |