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Adds an explicit way to use the args inside the WebAssembly Module

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Sendil Kumar
2019-06-13 01:00:04 +02:00
committed by Dan Gohman
parent 7ac6666fcb
commit ab8f8ef5d8
1 changed files with 3 additions and 1 deletions
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docs/WASI-api.md
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@@ -1596,10 +1596,12 @@ Used by many functions in this API.
As in POSIX, three file descriptor numbers are provided to instances
on startup -- 0, 1, and 2, (a.k.a. `STDIN_FILENO`, `STDOUT_FILENO`,
and `STDERR_FILENO`). Starting at 3 follow a possibly-entry sequence
of preopened file descriptors provided by the host environment;
of preopened file descriptors provided by the host environment or the argument passed to the wasmtime command;
information about these may be obtained through
[`__wasi_fd_prestat_get()`](#fd_prestat_get).
i.e., if we have called `wasmtime --dir=. <some command inside>` we can specify `3` that will refer to the `--dir` value.
Other than these, WASI implementations are not required to allocate
new file descriptors in ascending order.