Menentukan Peningkatan Prioritas Saat Menyelesaikan Permintaan I/O
Ketika driver menyelesaikan permintaan I/O, driver dapat memanggil WdfRequestCompleteWithPriorityBoost untuk menentukan nilai yang digunakan sistem untuk meningkatkan prioritas run-time utas yang meminta operasi I/O.
Jika driver memanggil WdfRequestComplete atau WdfRequestCompleteWithInformation alih-alih WdfRequestCompleteWithPriorityBoost, kerangka kerja menggunakan nilai peningkatan prioritas default yang didasarkan pada jenis perangkat. Tabel berikut ini mencantumkan nilai peningkatan prioritas default yang digunakan kerangka kerja. Jenis perangkat dan konstanta peningkatan prioritas didefinisikan dalam Wdm.h.
Jenis Perangkat | Peningkatan Prioritas Default |
---|---|
FILE_DEVICE_UNDEFINED | IO_NO_INCREMENT |
FILE_DEVICE_BEEP | IO_NO_INCREMENT |
FILE_DEVICE_CD_ROM | IO_CD_ROM_INCREMENT |
FILE_DEVICE_CD_ROM_FILE_SYSTEM | IO_CD_ROM_INCREMENT |
FILE_DEVICE_CONTROLLER | IO_NO_INCREMENT |
FILE_DEVICE_DATALINK | IO_NO_INCREMENT |
FILE_DEVICE_DFS | IO_NO_INCREMENT |
FILE_DEVICE_DISK | IO_DISK_INCREMENT |
FILE_DEVICE_DISK_FILE_SYSTEM | IO_DISK_INCREMENT |
FILE_DEVICE_FILE_SYSTEM | IO_NO_INCREMENT |
FILE_DEVICE_INPORT_PORT | IO_NO_INCREMENT |
FILE_DEVICE_KEYBOARD | IO_KEYBOARD_INCREMENT |
FILE_DEVICE_MAILSLOT | IO_MAILSLOT_INCREMENT |
FILE_DEVICE_MIDI_IN | IO_SOUND_INCREMENT |
FILE_DEVICE_MIDI_OUT | IO_SOUND_INCREMENT |
FILE_DEVICE_MOUSE | IO_MOUSE_INCREMENT |
FILE_DEVICE_MULTI_UNC_PROVIDER | IO_NO_INCREMENT |
FILE_DEVICE_NAMED_PIPE | IO_NAMED_PIPE_INCREMENT |
FILE_DEVICE_NETWORK | IO_NETWORK_INCREMENT |
FILE_DEVICE_NETWORK_BROWSER | IO_NETWORK_INCREMENT |
FILE_DEVICE_NETWORK_FILE_SYSTEM | IO_NETWORK_INCREMENT |
FILE_DEVICE_NULL | IO_NO_INCREMENT |
FILE_DEVICE_PARALLEL_PORT | IO_PARALLEL_INCREMENT |
FILE_DEVICE_PHYSICAL_NETCARD | IO_NETWORK_INCREMENT |
FILE_DEVICE_PRINTER | IO_NO_INCREMENT |
FILE_DEVICE_SCANNER | IO_NO_INCREMENT |
FILE_DEVICE_SERIAL_MOUSE_PORT | IO_SERIAL_INCREMENT |
FILE_DEVICE_SERIAL_PORT | IO_SERIAL_INCREMENT |
FILE_DEVICE_SCREEN | IO_VIDEO_INCREMENT |
FILE_DEVICE_SOUND | IO_SOUND_INCREMENT |
FILE_DEVICE_STREAMS | IO_SOUND_INCREMENT |
FILE_DEVICE_TAPE | IO_NO_INCREMENT |
FILE_DEVICE_TAPE_FILE_SYSTEM | IO_NO_INCREMENT |
FILE_DEVICE_TRANSPORT | IO_NO_INCREMENT |
FILE_DEVICE_UNKNOWN | IO_NO_INCREMENT |
FILE_DEVICE_VIDEO | IO_VIDEO_INCREMENT |
FILE_DEVICE_VIRTUAL_DISK | IO_DISK_INCREMENT |
FILE_DEVICE_WAVE_IN | IO_SOUND_INCREMENT |
FILE_DEVICE_WAVE_OUT | IO_SOUND_INCREMENT |
FILE_DEVICE_8042_PORT | IO_KEYBOARD_INCREMENT |
FILE_DEVICE_NETWORK_REDIRECTOR | IO_NETWORK_INCREMENT |
FILE_DEVICE_BATTERY | IO_NO_INCREMENT |
FILE_DEVICE_BUS_EXTENDER | IO_NO_INCREMENT |
FILE_DEVICE_MODEM | IO_SERIAL_INCREMENT |
FILE_DEVICE_VDM | IO_NO_INCREMENT |
FILE_DEVICE_MASS_STORAGE | IO_DISK_INCREMENT |
FILE_DEVICE_SMB | IO_NETWORK_INCREMENT |
FILE_DEVICE_KS | IO_SOUND_INCREMENT |
FILE_DEVICE_CHANGER | IO_NO_INCREMENT |
FILE_DEVICE_SMARTCARD | IO_NO_INCREMENT |
FILE_DEVICE_ACPI | IO_NO_INCREMENT |
FILE_DEVICE_DVD | IO_NO_INCREMENT |
FILE_DEVICE_FULLSCREEN_VIDEO | IO_VIDEO_INCREMENT |
FILE_DEVICE_DFS_FILE_SYSTEM | IO_NO_INCREMENT |
FILE_DEVICE_DFS_VOLUME | IO_NO_INCREMENT |
FILE_DEVICE_SERENUM | IO_SERIAL_INCREMENT |
FILE_DEVICE_TERMSRV | IO_NO_INCREMENT |
FILE_DEVICE_KSEC | IO_NO_INCREMENT |
FILE_DEVICE_FIPS | IO_NO_INCREMENT |
FILE_DEVICE_INFINIBAND | IO_NO_INCREMENT |