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Move console to use kutil's printf

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This commit is contained in:
Justin C. Miller
2019-03-31 22:43:37 -07:00
parent ee6d69bcd2
commit 5cdbedd4d1
1 changed files with 4 additions and 94 deletions
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98
src/kernel/console.cpp
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@@ -1,6 +1,7 @@
#include "kutil/coord.h"
#include "kutil/guid.h"
#include "kutil/memory.h"
#include "kutil/printf.h"
#include "console.h"
#include "font.h"
#include "screen.h"
@@ -278,100 +279,9 @@ console::putc(char c)
void console::vprintf(const char *fmt, va_list args)
{
static const unsigned buf_size = 256;
char buffer[256];
const char *r = fmt;
char *w = buffer;
char *wend = buffer + buf_size;
#define flush() do { *w = 0; puts(buffer); w = buffer; } while(0)
while (r && *r) {
if (w == wend) flush();
if (*r != '%') {
*w++ = *r++;
continue;
}
r++; // chomp the %
flush();
bool done = false;
bool right = true;
int width = 0;
char pad = ' ';
while (!done) {
char c = *r++;
switch (c) {
case '%': *w = '%'; done = true; break;
case '0':
if (width == 0) pad = '0';
// else fall through
case '1':
case '2':
case '3':
case '4':
case '5':
case '6':
case '7':
case '8':
case '9': width = width * 10 + (c - '0'); break;
case '-': right = !right; break;
case 'x': put_hex<uint32_t>(va_arg(args, uint32_t), right ? width : -width, pad); done = true; break;
case 'd':
case 'u': put_dec<uint32_t>(va_arg(args, uint32_t), right ? width : -width, pad); done = true; break;
case 's': {
const char *s = va_arg(args, const char*);
if (s) puts(s);
}
done = true;
break;
case 'G': {
// Special: GUID type
kutil::guid g = va_arg(args, kutil::guid);
put_hex<uint32_t>(g.a, 8, '0');
putc('-');
put_hex<uint16_t>((g.a >> 32) & 0xffff, 4, '0');
putc('-');
put_hex<uint16_t>((g.a >> 48) & 0xffff, 4, '0');
putc('-');
put_hex<uint16_t>((kutil::byteswap(g.b) >> 16) & 0xffff, 4, '0');
putc('-');
put_hex<uint16_t>(kutil::byteswap(g.b) & 0xffff, 4, '0');
put_hex<uint32_t>(kutil::byteswap(g.b >> 32), 8, '0');
}
done = true;
break;
case 'l':
switch (*r++) {
case 'x': put_hex<uint64_t>(va_arg(args, uint64_t), right ? width : -width, pad); done = true; break;
case 'd':
case 'u': put_dec<uint32_t>(va_arg(args, uint64_t), right ? width : -width, pad); done = true; break;
default:
done = true;
break;
}
break;
default:
done = true;
break;
}
}
}
flush();
char buffer[buf_size];
vsnprintf_(buffer, buf_size, fmt, args);
puts(buffer);
}
void