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causes
all modified data and attributes of to be moved to a permanent storage
device. This normally results in all in-core modified copies of buffers for
the associated file to be written to a disk. should be used by programs
that require a file to be in a known state, for example, in building a
simple transaction facility.
A 0 value is returned on success.
A -1 value indicates an error.
The fails if: is not a valid descriptor.
refers to a socket, not to a file. An I/O error occurred while reading
from or writing to the file system.
The function call
appeared in
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