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Print some info on exceptions.

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This commit is contained in:
Patrick
2024-01-19 00:06:00 +01:00
parent 9f1f1e80f2
commit 355b1641bd
6 changed files with 477 additions and 191 deletions
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227
targets/_any/include/os/tools/printf_helper.hpp Normal file
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@@ -0,0 +1,227 @@
#pragma once
#if !defined(BAD_APPLE_OS_OS_TOOLS_PRINTF_HELPER_HPP_INCLUDED)
#define BAD_APPLE_OS_OS_TOOLS_PRINTF_HELPER_HPP_INCLUDED
#include <cassert>
#include <cstdarg>
#include <cstddef>
#include <cstdint>
#include <utility>
#if !defined(BAOS_IPRINTF_FUNC_ATTRIBUTE)
#define BAOS_IPRINTF_FUNC_ATTRIBUTE
#endif
namespace baos
{
template<typename TPrinter>
class PrintFHelper
{
private:
TPrinter mPrinter;
public:
BAOS_IPRINTF_FUNC_ATTRIBUTE
explicit PrintFHelper(TPrinter printer = {}) noexcept : mPrinter(std::move(printer)) {}
BAOS_IPRINTF_FUNC_ATTRIBUTE
int printInt(long value)
{
if (value == 0)
{
mPrinter.putchar('0');
return 1;
}
if (value < 0)
{
mPrinter.putchar('-');
return printInt(-value) + 1;
}
char digits[19]; // 9223372036854775807 has 10 digits
char* pos = &digits[0];
while (value > 0)
{
*pos = static_cast<char>('0' + (value % 10));
value /= 10;
++pos;
}
for (char* chr = pos - 1; chr >= digits; --chr)
{
mPrinter.putchar(*chr);
}
return pos - digits;
}
BAOS_IPRINTF_FUNC_ATTRIBUTE
int printUInt(uint64_t value)
{
if (value == 0)
{
mPrinter.putchar('0');
return 1;
}
char digits[20]; // 18,446,744,073,709,551,615 has 20 digits
char* pos = &digits[0];
while (value > 0)
{
*pos = static_cast<char>('0' + (value % 10));
value /= 10;
++pos;
}
for (char* chr = pos - 1; chr >= digits; --chr)
{
mPrinter.putchar(*chr);
}
return pos - digits;
}
BAOS_IPRINTF_FUNC_ATTRIBUTE
int printHexInt(uint64_t value)
{
if (value == 0)
{
mPrinter.putchar('0');
return 1;
}
char digits[16]; // FFFFFFFFFFFFFFFF has 16 digits
char* pos = &digits[0];
while (value > 0)
{
const uint64_t digit = (value % 16);
if (digit < 10)
{
*pos = static_cast<char>('0' + digit);
}
else
{
*pos = static_cast<char>('A' + digit - 10);
}
value /= 16;
++pos;
}
for (char* chr = pos - 1; chr >= digits; --chr)
{
mPrinter.putchar(*chr);
}
return pos - digits;
}
BAOS_IPRINTF_FUNC_ATTRIBUTE
int printPointer(void* ptr)
{
return printHexInt(reinterpret_cast<uint64_t>(ptr));
}
BAOS_IPRINTF_FUNC_ATTRIBUTE
int printString(const char* str)
{
int len = 0;
while (*str)
{
mPrinter.putchar(*str);
++str;
++len;
}
return static_cast<int>(len);
}
BAOS_IPRINTF_FUNC_ATTRIBUTE
int printByteSize(size_t bytes)
{
const char* suffixes[] = {
"B", "KiB", "MiB", "GiB", "TiB"
};
int suffixIdx = 0;
for (; suffixIdx < sizeof(suffixes) / sizeof(suffixes[0]); ++suffixIdx)
{
if (bytes < 1024) {
break;
}
bytes /= 1024;
}
return printUInt(bytes) + printString(suffixes[suffixIdx]);
}
BAOS_IPRINTF_FUNC_ATTRIBUTE
int vprintf(const char* format, va_list vlist) noexcept
{
int result = 0;
const char* pos = format;
while (*pos != '\0')
{
if (*pos == '%')
{
++pos;
switch (*pos)
{
case '%':
mPrinter.putchar('%');
++result;
break;
case '\0':
// TODO: invalid format string, do something
assert(!"Invalid format string, ends with %.");
return -1;
case 'b':
result += printByteSize(va_arg(vlist, size_t));
break;
case 'c':
{
const char chr = static_cast<char>(va_arg(vlist, int));
mPrinter.putchar(chr);
++result;
break;
}
case 's':
result += printString(va_arg(vlist, const char*));
break;
case 'd':
result += printInt(va_arg(vlist, int));
break;
case 'p':
result += printPointer(va_arg(vlist, void*));
break;
case 'X':
result += printHexInt(va_arg(vlist, unsigned));
break;
case 'l':
++pos;
switch (*pos)
{
case '\0':
assert(!"Invalid format string, ends with %l.");
return -1;
case 'd':
result += printInt(va_arg(vlist, long));
break;
case 'X':
result += printHexInt(va_arg(vlist, unsigned long));
break;
default:
return -1;
}
break;
default:
assert(!"Invalid format string, unknown format identifier.");
return -1;
}
} else
{
mPrinter.putchar(*pos);
}
++pos;
}
++result;
return result;
}
};
}
#endif // !defined(BAD_APPLE_OS_OS_TOOLS_PRINTF_HELPER_HPP_INCLUDED)

3
targets/_any/include/stdio.h
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@@ -5,6 +5,7 @@
#define BAD_APPLE_OS_STDIO_H_INCLUDED
#include <stdarg.h>
#include <stddef.h>
#include "./detail/common.h"
BA_EXTERN_C_BEGIN
@@ -13,6 +14,8 @@ int putchar(int chr) BA_CXX_NOEXCEPT;
int puts(const char* str) BA_CXX_NOEXCEPT;
int printf(const char* format, ...) BA_CXX_NOEXCEPT __attribute__((format(printf, 1, 2)));
int vprintf(const char* format, va_list vlist) BA_CXX_NOEXCEPT;
int snprintf(char* buffer, size_t bufferSize, const char* format, ...) BA_CXX_NOEXCEPT __attribute__((format(printf, 3, 4)));
int vsnprintf(char* buffer, size_t bufferSize, const char* format, va_list vlist) BA_CXX_NOEXCEPT;
BA_EXTERN_C_END