06b6ec42b9
This adds the C WASI implementation as a new crate, wasmtime-wasi-c, and adds a command-line flag to the wasmtime command-line driver to select which WASI implementation to use.
60 lines
1.6 KiB
C
60 lines
1.6 KiB
C
// Part of the Wasmtime Project, under the Apache License v2.0 with LLVM Exceptions.
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// See https://github.com/CraneStation/wasmtime/blob/master/LICENSE for license information.
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//
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// Significant parts of this file are derived from cloudabi-utils. See
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// https://github.com/CraneStation/wasmtime/blob/master/lib/wasi/sandboxed-system-primitives/src/LICENSE
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// for license information.
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//
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// The upstream file contains the following copyright notice:
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//
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// Copyright (c) 2016-2018 Nuxi, https://nuxi.nl/
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#ifndef POSIX_H
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#define POSIX_H
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#include <stdbool.h>
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#include <stddef.h>
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#include "locking.h"
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struct fd_entry;
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struct fd_prestat;
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struct syscalls;
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struct fd_table {
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struct rwlock lock;
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struct fd_entry *entries;
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size_t size;
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size_t used;
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};
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struct fd_prestats {
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struct rwlock lock;
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struct fd_prestat *prestats;
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size_t size;
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size_t used;
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};
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struct argv_environ_values {
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size_t argc;
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size_t argv_buf_size;
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char **argv;
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char *argv_buf;
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size_t environ_count;
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size_t environ_buf_size;
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char **environ;
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char *environ_buf;
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};
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void fd_table_init(struct fd_table *);
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bool fd_table_insert_existing(struct fd_table *, __wasi_fd_t, int);
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void fd_prestats_init(struct fd_prestats *);
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bool fd_prestats_insert(struct fd_prestats *, const char *, __wasi_fd_t);
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void argv_environ_init(struct argv_environ_values *,
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const size_t *argv_offsets, size_t argv_offsets_len,
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const char *argv_buf, size_t argv_buf_len,
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const size_t *environ_offsets, size_t environ_offsets_len,
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const char *environ_buf, size_t environ_buf_len);
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#endif
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