Comments (2)
IIUC, you have two questions:
- why wasmtime failed but wamr pass
- why wamr says "Space allocation in file successful." but the before and after file size are same.
I am just going to answer the second one 😄 .
According to manual,
The function posix_fallocate() ensures that disk space is allocated for the file referred to by the file descriptor fd for the bytes. ... If the size of the file is less than offset+len, then the file is increased to this size; otherwise the file size is left unchanged.
It is not going to increase the file size if there is enough space. In this case, the file size is 26, and offset+len
is 7. So, the file size is left unchanged.
And for sure, you'll see a file size change if use a bigger len
, like
int result = posix_fallocate(fd, 1, 70);
from wasm-micro-runtime.
why wasmtime failed but wamr pass
because wasmtime has deprecated fd_allocate while ago, it always fails.
this doesn't seem like a bug in wamr.
from wasm-micro-runtime.
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from wasm-micro-runtime.