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Nicer debug() function, now like print() in Python

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Also report HRESULT in hexadecimal form
This commit is contained in:
Kovid Goyal 2023-01-25 08:57:26 +05:30
parent 6065f1847f
commit 1fecf2c380
No known key found for this signature in database
GPG Key ID: 06BC317B515ACE7C
1 changed files with 83 additions and 53 deletions
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136
src/calibre/utils/windows/winspeech.cpp
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@ -36,14 +36,27 @@ using namespace winrt::Windows::Media::Core;
using namespace winrt::Windows::Storage::Streams;
typedef uint64_t id_type;
#define debug(format_string, ...) { \
std::scoped_lock _sl_(output_lock); \
DWORD _tid_ = GetCurrentThreadId(); \
char _buf_[64] = {0}; snprintf(_buf_, sizeof(_buf_)-1, "thread-%u", _tid_); \
fprintf(stderr, "%s " format_string "\n", main_thread_id == _tid_ ? "thread-main" : _buf_, __VA_ARGS__); fflush(stderr);\
static std::mutex output_lock;
template<typename T, typename... Args> static void
__debug_multiple(T x, Args... args) {
std::cerr << x << " ";
__debug_multiple(args...);
}
template<typename T> static void
__debug_multiple(T x) {
std::cerr << x << std::endl;
}
template<typename... Args> static void
debug(Args... args) {
std::scoped_lock _sl_(output_lock);
DWORD tid = GetCurrentThreadId();
if (tid == main_thread_id) std::cerr << "thread-main"; else std::cerr << "thread-" << tid << ": ";
__debug_multiple(args...);
}
static std::mutex output_lock;
static std::atomic_bool main_loop_is_running;
static DWORD main_thread_id;
enum {
@ -164,6 +177,48 @@ private:
int64_t i;
std::vector<json_val> list;
std::map<std::string, json_val> object;
void serialize(std::ostream &out) const {
switch(type) {
case DT_NONE:
out << "nil"; break;
case DT_BOOL:
out << b ? "true" : "false"; break;
case DT_INT:
// this is not really correct since JS has various limits on numeric types, but good enough for us
serialize_integer(out, i); break;
case DT_FLOAT:
// again not technically correct
serialize_float(out, f); break;
case DT_STRING:
return serialize_string_for_json(s, out);
case DT_LIST: {
out << '[';
bool first = true;
for (auto const &i : list) {
if (!first) out << ", ";
first = false;
i.serialize(out);
}
out << ']';
break;
}
case DT_OBJECT: {
out << '{';
bool first = true;
for (const auto& [key, value]: object) {
if (!first) out << ", ";
first = false;
serialize_string_for_json(key, out);
out << ": ";
value.serialize(out);
}
out << '}';
break;
}
}
}
public:
json_val() : type(DT_NONE) {}
json_val(std::string &&text) : type(DT_STRING), s(text) {}
@ -179,6 +234,16 @@ public:
json_val(bool x) : type(DT_BOOL), b(x) {}
json_val(double x) : type(DT_FLOAT), f(x) {}
json_val(HRESULT hr) : type(DT_STRING) {
std::array<char, 16> str;
str[0] = '0'; str[1] = 'x';
if (auto [ptr, ec] = std::to_chars(str.data()+2, str.data() + str.size(), (uint32_t)hr, 16); ec == std::errc()) {
s = std::string(str.data(), ptr - str.data());
} else {
throw std::exception(std::make_error_code(ec).message().c_str());
}
}
json_val(VoiceInformation const& voice) : type(DT_OBJECT) {
const char *gender = "";
switch (voice.Gender()) {
@ -238,63 +303,25 @@ public:
};
}
void serialize(std::ostream &out) const {
switch(type) {
case DT_NONE:
out << "nil"; break;
case DT_BOOL:
out << b ? "true" : "false"; break;
case DT_INT:
// this is not really correct since JS has various limits on numeric types, but good enough for us
serialize_integer(out, i); break;
case DT_FLOAT:
// again not technically correct
serialize_float(out, f); break;
case DT_STRING:
return serialize_string_for_json(s, out);
case DT_LIST: {
out << '[';
bool first = true;
for (auto const &i : list) {
if (!first) out << ", ";
first = false;
i.serialize(out);
}
out << ']';
break;
}
case DT_OBJECT: {
out << '{';
bool first = true;
for (const auto& [key, value]: object) {
if (!first) out << ", ";
first = false;
serialize_string_for_json(key, out);
out << ": ";
value.serialize(out);
}
out << '}';
break;
}
}
friend std::ostream& operator<<(std::ostream &os, const json_val &self) {
self.serialize(os);
return os;
}
}; // }}}
static void
output(id_type cmd_id, std::string_view const &msg_type, json_val const &&msg) {
std::scoped_lock sl(output_lock);
try {
std::cout << cmd_id << " " << msg_type << " ";
msg.serialize(std::cout);
std::cout << std::endl;
std::cout << cmd_id << " " << msg_type << " " << msg << std::endl;
} catch(...) {}
}
static void
output_error(id_type cmd_id, std::string_view const &msg, std::string_view const &error, int64_t line, HRESULT hr=S_OK) {
std::map<std::string, json_val> m = {{"msg", json_val(msg)}, {"error", json_val(error)}, {"file", json_val("winspeech.cpp")}, {"line", json_val(line)}};
if (hr != S_OK) m["hr"] = json_val((int64_t)hr);
if (hr != S_OK) m["hr"] = json_val(hr);
output(cmd_id, "error", std::move(m));
}
@ -896,11 +923,14 @@ handle_stdin_message(winrt::hstring const &&msg) {
return -1;
}
static PyObject*
run_main_loop(PyObject*, PyObject*) {
std::cout.imbue(std::locale("C"));
std::cin.imbue(std::locale("C"));
std::cerr.imbue(std::locale("C"));
try {
std::cout.imbue(std::locale("C"));
std::cin.imbue(std::locale("C"));
std::cerr.imbue(std::locale("C"));
} CATCH_ALL_EXCEPTIONS("Failed to set stdio locales to C", 0);
winrt::init_apartment(); // MTA (multi-threaded apartment)
main_thread_id = GetCurrentThreadId();
MSG msg;