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Add WASI support to runtime-c-api

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This commit is contained in:
Mark McCaskey
2019-10-01 12:08:45 -07:00
parent b74e62af3d
commit b45b1c12f1
6 changed files with 195 additions and 1 deletions
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36
lib/runtime-c-api/wasmer.h
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@ -170,6 +170,21 @@ typedef struct {
} wasmer_trampoline_buffer_t;
/**
* Opens a directory that's visible to the WASI module as `alias` but
* is backed by the host file at `host_file_path`
*/
typedef struct {
/**
* What the WASI module will see in its virtual root
*/
wasmer_byte_array alias;
/**
* The backing file that the WASI module will interact with via the alias
*/
wasmer_byte_array host_file_path;
} wasmer_wasi_map_dir_entry_t;
/**
* Creates a new Module from the given wasm bytes.
*
@ -756,4 +771,25 @@ void *wasmer_trampoline_get_context(void);
*/
bool wasmer_validate(const uint8_t *wasm_bytes, uint32_t wasm_bytes_len);
/**
* Convenience function that creates a WASI import object with no arguments,
* environment variables, preopened files, or mapped directories.
*
* This function is the same as calling [`wasmer_wasi_generate_import_object`] with all
* empty values.
*/
wasmer_import_object_t *wasmer_wasi_generate_default_import_object(void);
/**
* Creates a WASI import object
*/
wasmer_import_object_t *wasmer_wasi_generate_import_object(const wasmer_byte_array *args,
unsigned int args_len,
const wasmer_byte_array *envs,
unsigned int envs_len,
const wasmer_byte_array *preopened_files,
unsigned int preopened_files_len,
const wasmer_wasi_map_dir_entry_t *mapped_dirs,
unsigned int mapped_dirs_len);
#endif /* WASMER_H */