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infix/src/core/loader.c  view on Meta::CPAN

        return nullptr;
#if defined(INFIX_OS_WINDOWS)
    return (void *)GetProcAddress((HMODULE)lib->handle, symbol_name);
#else
    return dlsym(lib->handle, symbol_name);
#endif
}
/**
 * @brief Reads the value of an exported global variable from a library into a buffer.
 *
 * This function first looks up the symbol's address. It then uses the `infix`
 * signature parser (`infix_type_from_signature`) to determine the size of the
 * variable. This ensures that the correct number of bytes are copied from the
 * library's data segment into the user's buffer, preventing buffer overflows.
 *
 * @param[in] lib The library handle.
 * @param[in] symbol_name The name of the global variable.
 * @param[in] type_signature The `infix` signature string describing the variable's type (e.g., `"int32"`,
 * `"{double,double}"`).
 * @param[out] buffer A pointer to the destination buffer to receive the data. This buffer must be large enough to hold
 * the type described by the signature.