diff options
Diffstat (limited to 'src/base/io/offset.c')
-rw-r--r-- | src/base/io/offset.c | 24 |
1 files changed, 24 insertions, 0 deletions
diff --git a/src/base/io/offset.c b/src/base/io/offset.c new file mode 100644 index 0000000..81ef994 --- /dev/null +++ b/src/base/io/offset.c @@ -0,0 +1,24 @@ +#include "internal.h" + +intptr +io·offset(io·Header *io) +{ + intptr n; + switch(io->state){ + default: + fmt·fprint(2, "offset: unknown state %d\n", io->state); + n = io·BufEof; + break; + + case io·BufEnd: + case io·BufRdr: + n = io->pos + io->ilen; + break; + + case io·BufWtr: + n = io->pos + (io->cap + io->olen); + break; + } + + return n; +} |