ocaml/otherlibs/unix/read.c

14 lines
319 B
C

#include <mlvalues.h>
#include "unix.h"
value unix_read(fd, buf, ofs, len) /* ML */
value fd, buf, ofs, len;
{
int ret;
enter_blocking_section();
ret = read(Int_val(fd), &Byte(buf, Long_val(ofs)), Int_val(len));
leave_blocking_section();
if (ret == -1) uerror("read", Nothing);
return Val_int(ret);
}