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// Copyright 2013 The Chromium Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#include <stdio.h>
#include <string>
#include "mojom/sample_service.h"
namespace sample {
static void PrintSpacer(int depth) {
for (int i = 0; i < depth; ++i)
printf(" ");
}
static void Print(int depth, const char* name, bool value) {
PrintSpacer(depth);
printf("%s: %s\n", name, value ? "true" : "false");
}
static void Print(int depth, const char* name, int32_t value) {
PrintSpacer(depth);
printf("%s: %d\n", name, value);
}
static void Print(int depth, const char* name, uint8_t value) {
PrintSpacer(depth);
printf("%s: %u\n", name, value);
}
static void Print(int depth, const char* name, mojo::Handle value) {
PrintSpacer(depth);
printf("%s: 0x%x\n", name, value.value);
}
static void Print(int depth, const char* name, const mojo::String* str) {
PrintSpacer(depth);
printf("%s: \"%*s\"\n", name, static_cast<int>(str->size()), &str->at(0));
}
static void Print(int depth, const char* name, const Bar* bar) {
PrintSpacer(depth);
printf("%s: %p\n", name, bar);
if (bar) {
++depth;
Print(depth, "alpha", bar->alpha());
Print(depth, "beta", bar->beta());
Print(depth, "gamma", bar->gamma());
--depth;
}
}
template <typename T>
static void Print(int depth, const char* name, const mojo::Array<T>* array) {
PrintSpacer(depth);
printf("%s: %p\n", name, array);
if (array) {
++depth;
for (size_t i = 0; i < array->size(); ++i) {
char buf[32];
sprintf(buf, "%lu", static_cast<unsigned long>(i));
Print(depth, buf, array->at(i));
}
--depth;
}
}
static void Print(int depth, const char* name, const Foo* foo) {
PrintSpacer(depth);
printf("%s: %p\n", name, foo);
if (foo) {
++depth;
Print(depth, "name", foo->name());
Print(depth, "x", foo->x());
Print(depth, "y", foo->y());
Print(depth, "a", foo->a());
Print(depth, "b", foo->b());
Print(depth, "c", foo->c());
Print(depth, "bar", foo->bar());
Print(depth, "extra_bars", foo->extra_bars());
Print(depth, "data", foo->data());
Print(depth, "files", foo->files());
--depth;
}
}
class ServiceImpl : public ServiceStub {
public:
virtual void Frobinate(const Foo* foo, bool baz, mojo::Handle port)
MOJO_OVERRIDE {
// Users code goes here to handle the incoming Frobinate message.
// We'll just dump the Foo structure and all of its members.
printf("Frobinate:\n");
int depth = 1;
Print(depth, "foo", foo);
Print(depth, "baz", baz);
Print(depth, "port", port);
}
};
class SimpleMessageReceiver : public mojo::MessageReceiver {
public:
virtual bool Accept(mojo::Message* message) MOJO_OVERRIDE {
// Imagine some IPC happened here.
// In the receiving process, an implementation of ServiceStub is known to
// the system. It receives the incoming message.
ServiceImpl impl;
ServiceStub* stub = &impl;
return stub->Accept(message);
}
};
void Exercise() {
SimpleMessageReceiver receiver;
// User has a proxy to a Service somehow.
Service* service = new ServiceProxy(&receiver);
// User constructs a message to send.
// Notice that it doesn't matter in what order the structs / arrays are
// allocated. Here, the various members of Foo are allocated before Foo is
// allocated.
mojo::ScratchBuffer buf;
Bar* bar = Bar::New(&buf);
bar->set_alpha(20);
bar->set_beta(40);
bar->set_gamma(60);
const char kName[] = "foopy";
mojo::String* name = mojo::String::NewCopyOf(&buf, std::string(kName));
mojo::Array<Bar*>* extra_bars = mojo::Array<Bar*>::New(&buf, 3);
for (size_t i = 0; i < extra_bars->size(); ++i) {
Bar* bar = Bar::New(&buf);
uint8_t base = static_cast<uint8_t>(i * 100);
bar->set_alpha(base);
bar->set_beta(base + 20);
bar->set_gamma(base + 40);
(*extra_bars)[i] = bar;
}
mojo::Array<uint8_t>* data = mojo::Array<uint8_t>::New(&buf, 10);
for (size_t i = 0; i < data->size(); ++i)
(*data)[i] = static_cast<uint8_t>(data->size() - i);
mojo::Array<mojo::Handle>* files = mojo::Array<mojo::Handle>::New(&buf, 4);
for (size_t i = 0; i < files->size(); ++i)
(*files)[i].value = static_cast<MojoHandle>(0xFFFF - i);
Foo* foo = Foo::New(&buf);
foo->set_name(name);
foo->set_x(1);
foo->set_y(2);
foo->set_a(false);
foo->set_b(true);
foo->set_c(false);
foo->set_bar(bar);
foo->set_extra_bars(extra_bars);
foo->set_data(data);
foo->set_files(files);
mojo::Handle port = { 10 };
service->Frobinate(foo, true, port);
}
} // namespace sample
int main() {
sample::Exercise();
return 0;
}
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