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Merge pull request #85 from wasmerio/feature/copy-stat

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copy stat to wasm and support windows
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Mackenzie Clark 2019-01-03 19:44:28 -08:00 committed by GitHub
commit 2eaa8527f2
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1 changed files with 44 additions and 22 deletions
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66
src/apis/emscripten/utils.rs
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@ -92,29 +92,51 @@ pub unsafe fn copy_terminated_array_of_cstrs(
0
}
pub unsafe fn copy_stat_into_wasm(instance: &mut Instance, buf: u32, stat: &stat) {
let buf_ptr = instance.memory_offset_addr(0, buf as _) as *mut u8;
let buf = slice::from_raw_parts_mut(buf_ptr, 76);
#[repr(C)]
pub struct GuestStat {
st_dev: u32,
__st_dev_padding: u32,
__st_ino_truncated: u32,
st_mode: u32,
st_nlink: u32,
st_uid: u32,
st_gid: u32,
st_rdev: u32,
__st_rdev_padding: u32,
st_size: u32,
st_blksize: u32,
st_blocks: u32,
st_atime: u64,
st_mtime: u64,
st_ctime: u64,
st_ino: u64,
}
LittleEndian::write_u32(&mut buf[..], stat.st_dev as _);
LittleEndian::write_u32(&mut buf[4..], 0);
LittleEndian::write_u32(&mut buf[8..], stat.st_ino as _);
LittleEndian::write_u32(&mut buf[12..], stat.st_mode as _);
LittleEndian::write_u32(&mut buf[16..], stat.st_nlink as _);
LittleEndian::write_u32(&mut buf[20..], stat.st_uid);
LittleEndian::write_u32(&mut buf[24..], stat.st_gid);
LittleEndian::write_u32(&mut buf[28..], stat.st_rdev as _);
LittleEndian::write_u32(&mut buf[32..], 0);
LittleEndian::write_u32(&mut buf[36..], stat.st_size as _);
LittleEndian::write_u32(&mut buf[40..], 4096);
LittleEndian::write_u32(&mut buf[44..], stat.st_blocks as _);
LittleEndian::write_u32(&mut buf[48..], stat.st_atime as _);
LittleEndian::write_u32(&mut buf[52..], 0);
LittleEndian::write_u32(&mut buf[56..], stat.st_mtime as _);
LittleEndian::write_u32(&mut buf[60..], 0);
LittleEndian::write_u32(&mut buf[64..], stat.st_ctime as _);
LittleEndian::write_u32(&mut buf[68..], 0);
LittleEndian::write_u32(&mut buf[72..], stat.st_ino as _);
pub unsafe fn copy_stat_into_wasm(instance: &mut Instance, buf: u32, stat: &stat) {
let stat_ptr = instance.memory_offset_addr(0, buf as _) as *mut GuestStat;
(*stat_ptr).st_dev = stat.st_dev as _;
(*stat_ptr).__st_dev_padding = 0;
(*stat_ptr).__st_ino_truncated = stat.st_ino as _;
(*stat_ptr).st_mode = stat.st_mode as _;
(*stat_ptr).st_nlink = stat.st_nlink as _;
(*stat_ptr).st_uid = stat.st_uid as _;
(*stat_ptr).st_gid = stat.st_gid as _;
(*stat_ptr).st_rdev = stat.st_rdev as _;
(*stat_ptr).__st_rdev_padding = 0;
(*stat_ptr).st_size = stat.st_size as _;
(*stat_ptr).st_blksize = 4096;
#[cfg(not(target_os = "windows"))]
{
(*stat_ptr).st_blocks = stat.st_blocks as _;
}
#[cfg(target_os = "windows")]
{
(*stat_ptr).st_blocks = 0;
}
(*stat_ptr).st_atime = stat.st_atime as _;
(*stat_ptr).st_mtime = stat.st_mtime as _;
(*stat_ptr).st_ctime = stat.st_ctime as _;
(*stat_ptr).st_ino = stat.st_ino as _;
}
#[cfg(test)]