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implement updating times in wasi::fd_filestat_set_times

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This commit is contained in:
Mark McCaskey 2019-08-01 14:06:28 +09:00
parent a824d8d4d8
commit 61d72a179b
2 changed files with 61 additions and 6 deletions
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35
lib/wasi/src/state.rs
View File

@ -70,18 +70,33 @@ impl WasiFsError {
/// This trait relies on your file closing when it goes out of scope via `Drop`
pub trait WasiFile: std::fmt::Debug + Write + Read + Seek {
/// the last time the file was accessed in nanoseconds as a UNIX timestamp
fn last_accessed(&self) -> u64;
fn last_accessed(&self) -> __wasi_timestamp_t;
/// the last time the file was modified in nanoseconds as a UNIX timestamp
fn last_modified(&self) -> u64;
fn last_modified(&self) -> __wasi_timestamp_t;
/// the time at which the file was created in nanoseconds as a UNIX timestamp
fn created_time(&self) -> u64;
fn created_time(&self) -> __wasi_timestamp_t;
/// set the last time the file was accessed in nanoseconds as a UNIX timestamp
// TODO: stablize this in 0.7.0 by removing default impl
fn set_last_accessed(&self, _last_accessed: __wasi_timestamp_t) {
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");
}
/// set the last time the file was modified in nanoseconds as a UNIX timestamp
// TODO: stablize this in 0.7.0 by removing default impl
fn set_last_modified(&self, _last_modified: __wasi_timestamp_t) {
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");
}
/// set the time at which the file was created in nanoseconds as a UNIX timestamp
// TODO: stablize this in 0.7.0 by removing default impl
fn set_created_time(&self, _created_time: __wasi_timestamp_t) {
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");
}
/// the size of the file in bytes
fn size(&self) -> u64;
/// Change the size of the file, if the `new_size` is greater than the current size
/// the extra bytes will be allocated and zeroed
// TODO: stablize this in 0.7.0 by removing default impl
fn set_len(&mut self, _new_size: __wasi_filesize_t) -> Option<()> {
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");
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");
}
}
@ -96,6 +111,10 @@ impl WasiFile for fs::File {
.unwrap_or(0)
}
fn set_last_accessed(&self, _last_accessed: __wasi_timestamp_t) {
// TODO: figure out how to do this
}
fn last_modified(&self) -> u64 {
self.metadata()
.unwrap()
@ -106,6 +125,10 @@ impl WasiFile for fs::File {
.unwrap_or(0)
}
fn set_last_modified(&self, _last_modified: __wasi_timestamp_t) {
// TODO: figure out how to do this
}
fn created_time(&self) -> u64 {
self.metadata()
.unwrap()
@ -116,6 +139,10 @@ impl WasiFile for fs::File {
.unwrap_or(0)
}
fn set_created_time(&self, _created_time: __wasi_timestamp_t) {
// TODO: figure out how to do this
}
fn size(&self) -> u64 {
self.metadata().unwrap().len()
}

32
lib/wasi/src/syscalls/mod.rs
View File

@ -566,14 +566,42 @@ pub fn fd_filestat_set_times(
inode.stat.st_atim = st_atim;
} else if fst_flags & __WASI_FILESTAT_SET_ATIM_NOW != 0 {
// set to current real time
unimplemented!("Set filestat time to the current real time");
let now = std::time::SystemTime::now();
let duration = wasi_try!(
now.duration_since(std::time::SystemTime::UNIX_EPOCH).ok(),
__WASI_EIO
);
inode.stat.st_atim = duration.as_nanos() as __wasi_timestamp_t;
// TODO: set it for more than just files
match &mut inode.kind {
Kind::File { handle, .. } => {
if let Some(handle) = handle {
handle.set_last_accessed(duration.as_nanos() as __wasi_timestamp_t);
}
}
_ => {}
}
}
if fst_flags & __WASI_FILESTAT_SET_MTIM != 0 {
inode.stat.st_mtim = st_mtim;
} else if fst_flags & __WASI_FILESTAT_SET_MTIM_NOW != 0 {
// set to current real time
unimplemented!("Set filestat time to the current real time");
let now = std::time::SystemTime::now();
let duration = wasi_try!(
now.duration_since(std::time::SystemTime::UNIX_EPOCH).ok(),
__WASI_EIO
);
inode.stat.st_mtim = duration.as_nanos() as __wasi_timestamp_t;
// TODO: set it for more than just files
match &mut inode.kind {
Kind::File { handle, .. } => {
if let Some(handle) = handle {
handle.set_last_modified(duration.as_nanos() as __wasi_timestamp_t);
}
}
_ => {}
}
}
__WASI_ESUCCESS