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#ifndef SYS_UIO_H
#define SYS_UIO_H
#include <inttypes.h>
#include <unistd.h>
struct iovec
{
void *iov_base; /* Base address of a memory region for input or output */
size_t iov_len; /* The size of the memory pointed to by iov_base */
};
ssize_t readv(int fildes, const struct iovec *iov, int iovcnt);
ssize_t writev(int fildes, const struct iovec *iov, int iovcnt);
#endif /* SYS_UIO_H */
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