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55 lines
2.1 KiB
C
55 lines
2.1 KiB
C
/* SPDX-License-Identifier: MIT */
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#ifdef LIBSQL_ENABLE_WASM_RUNTIME
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#ifndef LIBSQL_WASM_BINDINGS_H
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#define LIBSQL_WASM_BINDINGS_H
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typedef struct libsql_wasm_engine_t libsql_wasm_engine_t;
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typedef struct libsql_wasm_module_t libsql_wasm_module_t;
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typedef struct libsql_wasm_udf_api {
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int (*libsql_value_type)(sqlite3_value*);
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int (*libsql_value_int)(sqlite3_value*);
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double (*libsql_value_double)(sqlite3_value*);
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const unsigned char *(*libsql_value_text)(sqlite3_value*);
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const void *(*libsql_value_blob)(sqlite3_value*);
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int (*libsql_value_bytes)(sqlite3_value*);
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void (*libsql_result_error)(sqlite3_context*, const char*, int);
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void (*libsql_result_error_nomem)(sqlite3_context*);
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void (*libsql_result_int)(sqlite3_context*, int);
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void (*libsql_result_double)(sqlite3_context*, double);
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void (*libsql_result_text)(sqlite3_context*, const char*, int, void(*)(void*));
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void (*libsql_result_blob)(sqlite3_context*, const void*, int, void(*)(void*));
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void (*libsql_result_null)(sqlite3_context*);
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void *(*libsql_malloc)(int);
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void (*libsql_free)(void *);
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} libsql_wasm_udf_api;
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/*
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** Runs a WebAssembly user-defined function.
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** Additional data can be accessed via sqlite3_user_data(context)
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*/
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void libsql_run_wasm(struct libsql_wasm_udf_api *api, sqlite3_context *context,
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libsql_wasm_engine_t *engine, libsql_wasm_module_t *module, const char *func_name, int argc, sqlite3_value **argv);
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/*
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** Compiles a WebAssembly module. Can accept both .wat and binary Wasm format, depending on the implementation.
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** err_msg_buf needs to be deallocated with libsql_free_wasm_module.
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*/
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libsql_wasm_module_t *libsql_compile_wasm_module(libsql_wasm_engine_t* engine, const char *pSrcBody, int nBody,
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void *(*alloc_err_buf)(unsigned long long), char **err_msg_buf);
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/*
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** Frees a module allocated with libsql_compile_wasm_module
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*/
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void libsql_free_wasm_module(void *module);
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/*
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** Creates a new wasm engine
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*/
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libsql_wasm_engine_t *libsql_wasm_engine_new();
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void libsql_wasm_engine_free(libsql_wasm_engine_t *);
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#endif //LIBSQL_WASM_BINDINGS_H
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#endif //LIBSQL_ENABLE_WASM_RUNTIME
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