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Library
Module
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package index
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Library
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Bindings to Unix system calls.
val pread :
fd:Unix.file_descr ->
fd_offset:int64 ->
buffer:bytes ->
buffer_offset:int ->
length:int ->
intReads up to length bytes from fd (starting at position fd_offset) into buffer (starting at position buffer_offset). Returns the number of bytes actually read. fd's cursor position is unchanged.
val pwrite :
fd:Unix.file_descr ->
fd_offset:int64 ->
buffer:bytes ->
buffer_offset:int ->
length:int ->
intWrites up to length bytes from buffer (starting at position buffer_offset) to the file descriptor fd (starting at position fd_offset). Returns the number of bytes actually written. fd's cursor position is unchanged.
Flushes all modified buffer cache pages for a given file descriptor to the disk device, so that all changed information can be retrieved even if the system crashes or is rebooted. This includes writing through or flushing a disk cache if present. Blocks until the device reports that the transfer has completed.