interesting
/
libui
1
0
Fork 0
Code Issues Pull Requests Packages Projects Releases Wiki Activity

Migrated debug.cpp.

This commit is contained in:
Pietro Gagliardi 2016-04-21 21:57:36 -04:00
parent 9c9dc9a23e
commit f3cf43da21
3 changed files with 124 additions and 111 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

111
windows/debug.c
View File

@ -1,111 +0,0 @@
// 25 february 2015
#include "uipriv_windows.h"
// uncomment the following line to enable debug messages
#define tableDebug
// uncomment the following line to halt on a debug message
#define tableDebugStop
#ifdef tableDebug
#include <stdio.h>
HRESULT logLastError(const char *context)
{
DWORD le;
WCHAR *msg;
BOOL parenthesize = FALSE;
BOOL localFreeFailed = FALSE;
DWORD localFreeLastError;
le = GetLastError();
fprintf(stderr, "%s: ", context);
if (FormatMessageW(FORMAT_MESSAGE_ALLOCATE_BUFFER | FORMAT_MESSAGE_FROM_SYSTEM | FORMAT_MESSAGE_IGNORE_INSERTS, NULL, le, 0, (LPWSTR) (&msg), 0, NULL) != 0) {
fprintf(stderr, "%S (", msg);
if (LocalFree(msg) != NULL) {
localFreeFailed = TRUE;
localFreeLastError = GetLastError();
}
parenthesize = TRUE;
}
fprintf(stderr, "GetLastError() == %I32u", le);
if (parenthesize)
fprintf(stderr, ")");
if (localFreeFailed)
fprintf(stderr, "; local free of system message failed with last error %I32u", localFreeLastError);
fprintf(stderr, "\n");
#ifdef tableDebugStop
DebugBreak();
#endif
SetLastError(le);
// a function does not have to set a last error
// if the last error we get is actually 0, then HRESULT_FROM_WIN32(0) will return S_OK (0 cast to an HRESULT, since 0 <= 0), which we don't want
// prevent this by returning E_FAIL, so the rest of the Table code doesn't barge onward
if (le == 0)
return E_FAIL;
return HRESULT_FROM_WIN32(le);
}
HRESULT logHRESULT(const char *context, HRESULT hr)
{
WCHAR *msg;
BOOL parenthesize = FALSE;
BOOL localFreeFailed = FALSE;
DWORD localFreeLastError;
fprintf(stderr, "%s: ", context);
// this isn't technically documented, but everyone does it, including Microsoft (see the implementation of _com_error::ErrorMessage() in a copy of comdef.h that comes with the Windows DDK)
if (FormatMessageW(FORMAT_MESSAGE_ALLOCATE_BUFFER | FORMAT_MESSAGE_FROM_SYSTEM | FORMAT_MESSAGE_IGNORE_INSERTS, NULL, (DWORD) hr, 0, (LPWSTR) (&msg), 0, NULL) != 0) {
fprintf(stderr, "%S (", msg);
if (LocalFree(msg) != NULL) {
localFreeFailed = TRUE;
localFreeLastError = GetLastError();
}
parenthesize = TRUE;
}
fprintf(stderr, "HRESULT == 0x%I32X", hr);
if (parenthesize)
fprintf(stderr, ")");
if (localFreeFailed)
fprintf(stderr, "; local free of system message failed with last error %I32u", localFreeLastError);
fprintf(stderr, "\n");
#ifdef tableDebugStop
DebugBreak();
#endif
return hr;
}
HRESULT logMemoryExhausted(const char *reason)
{
fprintf(stderr, "memory exhausted %s\n", reason);
#ifdef tableDebugStop
DebugBreak();
#endif
return E_OUTOFMEMORY;
}
#else
HRESULT logLastError(const char *reason)
{
DWORD le;
le = GetLastError();
// we shouldn't need to do this, but let's do this anyway just to be safe
SetLastError(le);
if (le == 0)
return E_FAIL;
return HRESULT_FROM_WIN32(le);
}
HRESULT logHRESULT(const char *reason, HRESULT hr)
{
return hr;
}
HRESULT logMemoryExhausted(const char *reason)
{
return E_OUTOFMEMORY;
}
#endif

123
windows/debug.cpp Normal file
View File

@ -0,0 +1,123 @@
// 25 february 2015
#include "uipriv_windows.h"
// TODO disable logging and stopping on no-debug builds
// TODO are the newlines needed?
static void printDebug(WCHAR *msg)
{
OutputDebugStringW(msg);
}
#define debugfmt L"%s:" L ## PRIiMAX L":%s()"
HRESULT _logLastError(debugargs, const WCHAR *func, const WCHAR *s)
{
DWORD le;
WCHAR *msg;
WCHAR *formatted;
BOOL useFormatted;
le = GetLastError();
useFormatted = FormatMessageW(FORMAT_MESSAGE_ALLOCATE_BUFFER | FORMAT_MESSAGE_FROM_SYSTEM | FORMAT_MESSAGE_IGNORE_INSERTS, NULL, le, 0, (LPWSTR) (&formatted), 0, NULL) != 0;
if (!useFormatted)
formatted = L"\n";
msg = debugstrf(L"[libui] " debugfmt L" %s: GetLastError() == %I32u %s",
file, line, func,
s, le, formatted);
if (useFormatted)
LocalFree(formatted); // ignore error
if (msg == NULL) {
printDebug(L"[libui] (debugstrf() failed; printing raw) ");
printDebug(file);
printDebug(func);
printDebug(s);
printDebug(L"\n");
} else {
printDebug(msg);
uiFree(msg);
}
DebugBreak();
SetLastError(le);
// a function does not have to set a last error
// if the last error we get is actually 0, then HRESULT_FROM_WIN32(0) will return S_OK (0 cast to an HRESULT, since 0 <= 0), which we don't want
// prevent this by returning E_FAIL
if (le == 0)
return E_FAIL;
return HRESULT_FROM_WIN32(le);
}
HRESULT _logHRESULT(debugargs, const WCHAR *s, HRESULT hr)
{
DWORD le;
WCHAR *msg;
WCHAR *formatted;
BOOL useFormatted;
useFormatted = FormatMessageW(FORMAT_MESSAGE_ALLOCATE_BUFFER | FORMAT_MESSAGE_FROM_SYSTEM | FORMAT_MESSAGE_IGNORE_INSERTS, NULL, hr, 0, (LPWSTR) (&formatted), 0, NULL) != 0;
if (!useFormatted)
formatted = L"\n";
msg = debugstrf(L"[libui] " debugfmt L" %s: HRESULT == 0x%08I32X %s",
file, line, func,
s, hr, formatted);
if (useFormatted)
LocalFree(formatted); // ignore error
if (msg == NULL) {
printDebug(L"[libui] (debugstrf() failed; printing raw) ");
printDebug(file);
printDebug(func);
printDebug(s);
printDebug(L"\n");
} else {
printDebug(msg);
uiFree(msg);
}
DebugBreak();
return hr;
}
#define implbugmsg L"either you have or libui has a bug in a control implementation; if libui does, contact andlabs"
void _implbug(debugargs, const WCHAR *format, ...)
{
va_list ap;
WCHAR *formatted;
WCHAR *full;
const WCHAR *onerr;
va_start(ap, format);
formatted = debugvstrf(format, ap);
va_end(ap);
if (formatted == NULL) {
onerr = s;
goto bad;
}
full = debugstrf(L"[libui] " debugfmt L" " implbugmsg L" — %s\n",
file, line, func,
formatted);
if (full == NULL) {
onerr = formatted;
goto bad;
}
printDebug(full);
uiFree(full);
uiFree(formatted);
goto after;
bad:
printDebug(L"[libui] (debugstrf() failed; printing raw) ");
printDebug(implbugmsg);
printDebug(file);
printDebug(func);
printDebug(onerr);
printDebug(L"\n");
after:
DebugBreak();
abort();
}

1
windows/winapi.hpp
View File

@ -41,6 +41,7 @@
#include <stdio.h>
#include <math.h>
#include <float.h>
#include <inttypes.h>
#include <vector>
#include <map>