static int handle_eval(duk_context *ctx, const char *code) {
int rc;
int retval = -1;
duk_push_pointer(ctx, (void *) code);
duk_push_uint(ctx, (duk_uint_t) strlen(code));
duk_push_string(ctx, "eval");
interactive_mode = 0; /* global */
rc = duk_safe_call(ctx, wrapped_compile_execute, 3 /*nargs*/, 1 /*nret*/);
#if defined(DUK_CMDLINE_AJSHEAP)
ajsheap_clear_exec_timeout();
#endif
if (rc != DUK_EXEC_SUCCESS) {
print_pop_error(ctx, stderr);
} else {
duk_pop(ctx);
retval = 0;
}
return retval;
}
/* in interactive mode, write to stdout */
print_pop_error(ctx, stdout);
retval = -1; /* an error 'taints' the execution */
} else {
duk_pop(ctx);
}
}
done:
if (buffer) {
free(buffer);
buffer = NULL;
}
return retval;
}
#else /* NO_READLINE */
static int handle_interactive(duk_context *ctx) {
const char *prompt = "duk> ";
char *buffer = NULL;
int retval = 0;
int rc;
duk_eval_string(ctx, GREET_CODE(""));
duk_pop(ctx);
/*
* Note: using readline leads to valgrind-reported leaks inside
* readline itself. Execute code from an input file (and not
* through stdin) for clean valgrind runs.
*/
rl_initialize();
for (;;) {
if (buffer) {
free(buffer);
buffer = NULL;
}
buffer = readline(prompt);
if (!buffer) {
break;
}
if (buffer && buffer[0] != (char) 0) {
add_history(buffer);
}
duk_push_lstring(ctx, buffer, strlen(buffer));
duk_push_string(ctx, "input");
if (buffer) {
free(buffer);
buffer = NULL;
}
interactive_mode = 1; /* global */
rc = duk_safe_call(ctx, wrapped_compile_execute, 2 /*nargs*/, 1 /*nret*/);
if (rc != DUK_EXEC_SUCCESS) {
/* in interactive mode, write to stdout */
print_pop_error(ctx, stdout);
retval = -1; /* an error 'taints' the execution */
} else {
duk_pop(ctx);
}
}
if (buffer) {
free(buffer);
buffer = NULL;
}
return retval;
}
static int handle_fh(duk_context *ctx, FILE *f, const char *filename, const char *bytecode_filename) {
char *buf = NULL;
int len;
size_t got;
int rc;
int retval = -1;
if (fseek(f, 0, SEEK_END) < 0) {
goto error;
}
len = (int) ftell(f);
if (fseek(f, 0, SEEK_SET) < 0) {
goto error;
}
buf = (char *) malloc(len);
if (!buf) {
goto error;
}
got = fread((void *) buf, (size_t) 1, (size_t) len, f);
duk_push_string(ctx, bytecode_filename);
duk_push_pointer(ctx, (void *) buf);
duk_push_uint(ctx, (duk_uint_t) got);
duk_push_string(ctx, filename);
interactive_mode = 0; /* global */
rc = duk_safe_call(ctx, wrapped_compile_execute, 4 /*nargs*/, 1 /*nret*/);
#if defined(DUK_CMDLINE_AJSHEAP)
ajsheap_clear_exec_timeout();
#endif
free(buf);
buf = NULL;
if (rc != DUK_EXEC_SUCCESS) {
print_pop_error(ctx, stderr);
goto error;
} else {
duk_pop(ctx);
retval = 0;
}
/* fall thru */
cleanup:
if (buf) {
free(buf);
}
return retval;
error:
fprintf(stderr, "error in executing file %s\n", filename);
fflush(stderr);
goto cleanup;
}
static int handle_eval(duk_context *ctx, const char *code) {
int rc;
int retval = -1;
duk_push_string(ctx, code);
duk_push_string(ctx, "eval");
interactive_mode = 0; /* global */
rc = duk_safe_call(ctx, wrapped_compile_execute, 2 /*nargs*/, 1 /*nret*/);
if (rc != DUK_EXEC_SUCCESS) {
print_pop_error(ctx, stderr);
} else {
duk_pop(ctx);
retval = 0;
}
return retval;
}
/** Run the accessor.
* @param accessorFileName The file name of the accessor, suitable getAccessorCode()
* @param timeout The number of milliseconds to wait after the
* accessor is instantiated and initialized. If the timeout is less than zero,
* then the timeout will be forever.
* @return 0 if successfully, non-zero if there is an error.
*/
int runAccessorHost(duk_context *ctx, const char *accessorFileName, int timeout) {
int rc;
//fprintf(stderr, "%s:%d: About to load C version of c_eventloop.\n", __FILE__, __LINE__);
// Use duk_peval_string_noresult() and avoid interning the string. Good
// for low memory, see
// http://duktape.org/api.html#duk_peval_string_noresult
if (duk_peval_string(ctx, c_eventloop_js) != 0) {
fprintf(stderr, "%s:%d: Loading C version of c_eventloop failed. Error was:\n", __FILE__, __LINE__);
print_pop_error(ctx, stderr);
return 1;
} else {
//printf("%s: Loading C version of c_eventloop worked\n", __FILE__);
duk_pop(ctx);
}
// Use duk_peval_string_noresult() and avoid interning the string. Good
// for low memory, see
// http://duktape.org/api.html#duk_peval_string_noresult
if (duk_peval_string(ctx, ___duktapeHost_js) != 0) {
fprintf(stderr, "%s:%d: Loading C version of duktapeHost failed. Error was:\n", __FILE__, __LINE__);
print_pop_error(ctx, stderr);
return 2;
} else {
//printf("%s: Loading C version of duktapeHost worked\n", __FILE__);
duk_pop(ctx);
}
// Call instantiateAndInitialize() on the accessorFileName, then timeout.
// Build the command to be evaled.
// FIXME: Note that for deployment, we could save memory and
// choose one or the other at compile time.
int length = strlen(accessorFileName);
if (timeout >= 0) {
// Increase 136 if the first snprintf string changes
length += 136 + 8 /* Approximate Length of timeout value as a string */;
} else {
// Increase 79 if the second snprintf string changes.
length += 79;
}
char buf[length];
if (timeout >= 0) {
// Timeout.
// While exiting, invoke wrapup() on any accessors that were
// created. The TrainableTest accessor expects wrapup to be
// called so that it can report an error if fire() was never
// called.
// requestEventLoopExit() is defined in ecma_eventloop.js
snprintf(buf, length,
"var a=['%s'],t=this;t.b=instantiateAndInitialize(a),setTimeout(function(){for(var i in t.b)t.b[i].wrapup();requestEventLoopExit()},%d);",
accessorFileName, timeout);
} else {
// Prevent the script from exiting by repeating the empty function
// every ~25 days.
snprintf(buf, length,
"var a=['%s'];instantiateAndInitialize(a);setInterval(function(){},2147483647);",
accessorFileName);
}
// Eval the command, avoid interning the string.
if (duk_peval_string(ctx, buf) != 0) {
fprintf(stderr, "%s:%d: Failed to invoke accessor %s. Command was:\n%s\nError was:\n", __FILE__, __LINE__, accessorFileName, buf);
print_pop_error(ctx, stderr);
return 3;
} else {
duk_pop(ctx);
}
// Compile solution
//duk_compile(ctx, 0);
/* duk_push_global_object(ctx); /\* 'this' binding *\/ */
/* duk_insert(ctx, -2); /\* [ ... global func ] *\/ */
/* duk_put_prop_string(ctx, -2, "_USERCODE"); */
/* duk_pop(ctx); */
/* duk_eval_string(ctx, "setTimeout(function() { _USERCODE(); }, 0);"); */
/* duk_pop(ctx); */
rc = duk_safe_call(ctx, eventloop_run, 0 /*nargs*/, 1 /*nrets*/);
if (rc != 0) {
fprintf(stderr, "%s:%d: %s: Failed invoke eventloop_run()\n", __FILE__, __LINE__, accessorFileName);
return 4;
}
//fprintf(stderr, "runAccessorHost() done.\n");
return 0;
}
static int handle_interactive(duk_context *ctx) {
const char *prompt = "duk> ";
char *buffer = NULL;
int retval = 0;
int rc;
int got_eof = 0;
duk_eval_string(ctx, GREET_CODE(" [no readline]"));
duk_pop(ctx);
buffer = (char *) malloc(LINEBUF_SIZE);
if (!buffer) {
fprintf(stderr, "failed to allocated a line buffer\n");
fflush(stderr);
retval = -1;
goto done;
}
while (!got_eof) {
size_t idx = 0;
fwrite(prompt, 1, strlen(prompt), stdout);
fflush(stdout);
for (;;) {
int c = fgetc(stdin);
if (c == EOF) {
got_eof = 1;
break;
} else if (c == '\n') {
break;
} else if (idx >= LINEBUF_SIZE) {
fprintf(stderr, "line too long\n");
fflush(stderr);
retval = -1;
goto done;
} else {
buffer[idx++] = (char) c;
}
}
duk_push_lstring(ctx, buffer, idx);
duk_push_string(ctx, "input");
interactive_mode = 1; /* global */
rc = duk_safe_call(ctx, wrapped_compile_execute, 2 /*nargs*/, 1 /*nret*/);
if (rc != DUK_EXEC_SUCCESS) {
/* in interactive mode, write to stdout */
print_pop_error(ctx, stdout);
retval = -1; /* an error 'taints' the execution */
} else {
duk_pop(ctx);
}
}
done:
if (buffer) {
free(buffer);
buffer = NULL;
}
return retval;
}
