Jeremy Soller
32 lines
742 B
Rust
32 lines
742 B
Rust
use super::{constants, FILE};
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use platform::types::*;
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pub fn ftello(stream: &mut FILE) -> off_t {
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let pos = stream.seek(
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0,
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if let Some((wbase, wpos, _)) = stream.write {
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if (stream.flags & constants::F_APP > 0) && wpos > wbase {
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constants::SEEK_END
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} else {
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constants::SEEK_CUR
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}
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} else {
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constants::SEEK_CUR
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},
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);
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if pos < 0 {
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return pos;
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}
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let rdiff = if let Some((rpos, rend)) = stream.read {
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rend - rpos
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} else {
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0
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};
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let wdiff = if let Some((wbase, wpos, _)) = stream.write {
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wpos - wbase
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} else {
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0
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};
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pos - rdiff as i64 + wdiff as i64
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}
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