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authorDaniel Baumann <daniel.baumann@progress-linux.org>2024-04-07 19:33:14 +0000
committerDaniel Baumann <daniel.baumann@progress-linux.org>2024-04-07 19:33:14 +0000
commit36d22d82aa202bb199967e9512281e9a53db42c9 (patch)
tree105e8c98ddea1c1e4784a60a5a6410fa416be2de /mozglue/misc/Debug.h
parentInitial commit. (diff)
downloadfirefox-esr-36d22d82aa202bb199967e9512281e9a53db42c9.tar.xz
firefox-esr-36d22d82aa202bb199967e9512281e9a53db42c9.zip
Adding upstream version 115.7.0esr.upstream/115.7.0esr
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'mozglue/misc/Debug.h')
-rw-r--r--mozglue/misc/Debug.h69
1 files changed, 69 insertions, 0 deletions
diff --git a/mozglue/misc/Debug.h b/mozglue/misc/Debug.h
new file mode 100644
index 0000000000..f8f05c6299
--- /dev/null
+++ b/mozglue/misc/Debug.h
@@ -0,0 +1,69 @@
+/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
+/* vim: set ts=8 sts=2 et sw=2 tw=80: */
+/* This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at https://mozilla.org/MPL/2.0/. */
+
+#ifndef mozilla_glue_Debug_h
+#define mozilla_glue_Debug_h
+
+/* This header file intends to supply debugging utilities for use in code
+ * that cannot use XPCOM debugging facilities like nsDebug.h.
+ * e.g. mozglue, browser/app
+ *
+ * NB: printf_stderr() is in the global namespace, so include this file with
+ * care; avoid including from header files.
+ */
+
+#include <io.h>
+#if defined(XP_WIN)
+# include <windows.h>
+#endif // defined(XP_WIN)
+#include "mozilla/Attributes.h"
+#include "mozilla/Sprintf.h"
+
+#if defined(MOZILLA_INTERNAL_API)
+# error Do not include this file from XUL sources.
+#endif
+
+// Though this is a separate implementation than nsDebug's, we want to make the
+// declarations compatible to avoid confusing the linker if both headers are
+// included.
+#ifdef __cplusplus
+extern "C" {
+#endif // __cplusplus
+
+void printf_stderr(const char* fmt, ...) MOZ_FORMAT_PRINTF(1, 2);
+inline void printf_stderr(const char* fmt, ...) {
+#if defined(XP_WIN)
+ if (IsDebuggerPresent()) {
+ char buf[2048];
+ va_list args;
+ va_start(args, fmt);
+ VsprintfLiteral(buf, fmt, args);
+ va_end(args);
+ OutputDebugStringA(buf);
+ }
+#endif // defined(XP_WIN)
+
+ // stderr is unbuffered by default so we open a new FILE (which is buffered)
+ // so that calls to printf_stderr are not as likely to get mixed together.
+ int fd = _fileno(stderr);
+ if (fd == -2) return;
+
+ FILE* fp = _fdopen(_dup(fd), "a");
+ if (!fp) return;
+
+ va_list args;
+ va_start(args, fmt);
+ vfprintf(fp, fmt, args);
+ va_end(args);
+
+ fclose(fp);
+}
+
+#ifdef __cplusplus
+}
+#endif // __cplusplus
+
+#endif // mozilla_glue_Debug_h