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https://github.com/fluencelabs/wasmer
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implement updating times in wasi::fd_filestat_set_times
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@ -70,18 +70,33 @@ impl WasiFsError {
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/// This trait relies on your file closing when it goes out of scope via `Drop`
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pub trait WasiFile: std::fmt::Debug + Write + Read + Seek {
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/// the last time the file was accessed in nanoseconds as a UNIX timestamp
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fn last_accessed(&self) -> u64;
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fn last_accessed(&self) -> __wasi_timestamp_t;
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/// the last time the file was modified in nanoseconds as a UNIX timestamp
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fn last_modified(&self) -> u64;
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fn last_modified(&self) -> __wasi_timestamp_t;
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/// the time at which the file was created in nanoseconds as a UNIX timestamp
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fn created_time(&self) -> u64;
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fn created_time(&self) -> __wasi_timestamp_t;
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/// set the last time the file was accessed in nanoseconds as a UNIX timestamp
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// TODO: stablize this in 0.7.0 by removing default impl
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fn set_last_accessed(&self, _last_accessed: __wasi_timestamp_t) {
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panic!("Default implementation for compatibilty in the 0.6.X releases; this will be removed in 0.7.0. Please implement WasiFile::set_last_accessed for your type before then");
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}
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/// set the last time the file was modified in nanoseconds as a UNIX timestamp
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// TODO: stablize this in 0.7.0 by removing default impl
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fn set_last_modified(&self, _last_modified: __wasi_timestamp_t) {
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panic!("Default implementation for compatibilty in the 0.6.X releases; this will be removed in 0.7.0. Please implement WasiFile::set_last_modified for your type before then");
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}
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/// set the time at which the file was created in nanoseconds as a UNIX timestamp
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// TODO: stablize this in 0.7.0 by removing default impl
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fn set_created_time(&self, _created_time: __wasi_timestamp_t) {
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panic!("Default implementation for compatibilty in the 0.6.X releases; this will be removed in 0.7.0. Please implement WasiFile::set_created_time for your type before then");
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}
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/// the size of the file in bytes
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fn size(&self) -> u64;
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/// Change the size of the file, if the `new_size` is greater than the current size
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/// the extra bytes will be allocated and zeroed
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// TODO: stablize this in 0.7.0 by removing default impl
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fn set_len(&mut self, _new_size: __wasi_filesize_t) -> Option<()> {
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panic!("Default implementation for compatibilty in the 0.6.X releases; this will be removed in 0.7.X. Please implement WasiFile::allocate for your type before then");
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panic!("Default implementation for compatibilty in the 0.6.X releases; this will be removed in 0.7.0. Please implement WasiFile::allocate for your type before then");
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}
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}
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@ -96,6 +111,10 @@ impl WasiFile for fs::File {
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.unwrap_or(0)
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}
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fn set_last_accessed(&self, _last_accessed: __wasi_timestamp_t) {
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// TODO: figure out how to do this
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}
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fn last_modified(&self) -> u64 {
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self.metadata()
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.unwrap()
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@ -106,6 +125,10 @@ impl WasiFile for fs::File {
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.unwrap_or(0)
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}
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fn set_last_modified(&self, _last_modified: __wasi_timestamp_t) {
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// TODO: figure out how to do this
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}
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fn created_time(&self) -> u64 {
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self.metadata()
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.unwrap()
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@ -116,6 +139,10 @@ impl WasiFile for fs::File {
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.unwrap_or(0)
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}
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fn set_created_time(&self, _created_time: __wasi_timestamp_t) {
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// TODO: figure out how to do this
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}
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fn size(&self) -> u64 {
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self.metadata().unwrap().len()
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}
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@ -566,14 +566,42 @@ pub fn fd_filestat_set_times(
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inode.stat.st_atim = st_atim;
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} else if fst_flags & __WASI_FILESTAT_SET_ATIM_NOW != 0 {
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// set to current real time
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unimplemented!("Set filestat time to the current real time");
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let now = std::time::SystemTime::now();
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let duration = wasi_try!(
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now.duration_since(std::time::SystemTime::UNIX_EPOCH).ok(),
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__WASI_EIO
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);
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inode.stat.st_atim = duration.as_nanos() as __wasi_timestamp_t;
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// TODO: set it for more than just files
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match &mut inode.kind {
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Kind::File { handle, .. } => {
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if let Some(handle) = handle {
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handle.set_last_accessed(duration.as_nanos() as __wasi_timestamp_t);
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}
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}
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_ => {}
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}
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}
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if fst_flags & __WASI_FILESTAT_SET_MTIM != 0 {
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inode.stat.st_mtim = st_mtim;
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} else if fst_flags & __WASI_FILESTAT_SET_MTIM_NOW != 0 {
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// set to current real time
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unimplemented!("Set filestat time to the current real time");
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let now = std::time::SystemTime::now();
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let duration = wasi_try!(
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now.duration_since(std::time::SystemTime::UNIX_EPOCH).ok(),
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__WASI_EIO
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);
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inode.stat.st_mtim = duration.as_nanos() as __wasi_timestamp_t;
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// TODO: set it for more than just files
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match &mut inode.kind {
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Kind::File { handle, .. } => {
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if let Some(handle) = handle {
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handle.set_last_modified(duration.as_nanos() as __wasi_timestamp_t);
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}
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}
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_ => {}
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}
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}
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__WASI_ESUCCESS
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