summaryrefslogtreecommitdiffstats
path: root/memory/replace/logalloc/FdPrintf.h
diff options
context:
space:
mode:
authorMatt A. Tobin <mattatobin@localhost.localdomain>2018-02-02 04:16:08 -0500
committerMatt A. Tobin <mattatobin@localhost.localdomain>2018-02-02 04:16:08 -0500
commit5f8de423f190bbb79a62f804151bc24824fa32d8 (patch)
tree10027f336435511475e392454359edea8e25895d /memory/replace/logalloc/FdPrintf.h
parent49ee0794b5d912db1f95dce6eb52d781dc210db5 (diff)
downloadUXP-5f8de423f190bbb79a62f804151bc24824fa32d8.tar
UXP-5f8de423f190bbb79a62f804151bc24824fa32d8.tar.gz
UXP-5f8de423f190bbb79a62f804151bc24824fa32d8.tar.lz
UXP-5f8de423f190bbb79a62f804151bc24824fa32d8.tar.xz
UXP-5f8de423f190bbb79a62f804151bc24824fa32d8.zip
Add m-esr52 at 52.6.0
Diffstat (limited to 'memory/replace/logalloc/FdPrintf.h')
-rw-r--r--memory/replace/logalloc/FdPrintf.h26
1 files changed, 26 insertions, 0 deletions
diff --git a/memory/replace/logalloc/FdPrintf.h b/memory/replace/logalloc/FdPrintf.h
new file mode 100644
index 000000000..9ad3e54a6
--- /dev/null
+++ b/memory/replace/logalloc/FdPrintf.h
@@ -0,0 +1,26 @@
+/* -*- 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 http://mozilla.org/MPL/2.0/. */
+
+#ifndef __FdPrintf_h__
+#define __FdPrintf_h__
+
+/* We can't use libc's (f)printf because it would reenter in replace_malloc,
+ * So use a custom and simplified version.
+ * Only %p and %z are supported.
+ * /!\ This function used a fixed-size internal buffer. The caller is
+ * expected to not use a format string that may overflow.
+ * The aFd argument is a file descriptor on UNIX and a native win32 file
+ * handle on Windows (from CreateFile). We can't use the windows POSIX
+ * APIs is that they don't support O_APPEND in a multi-process-safe way,
+ * while CreateFile does.
+ */
+extern void FdPrintf(intptr_t aFd, const char* aFormat, ...)
+#ifdef __GNUC__
+__attribute__((format(printf, 2, 3)))
+#endif
+;
+
+#endif /* __FdPrintf_h__ */