/* 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_
#include <cstdarg>
#ifdef _WIN32
typedef void* platform_handle_t;
#else
typedef int platform_handle_t;
#endif
/*
* We can't use libc's (f)printf because it would reenter in replace_malloc,
* So use a custom and simplified version. Only %p, %zu, %s and %% are
* supported, %zu, %s, support width specifiers.
*/
int VSNPrintf(
char* aBuf, std::size_t aSize,
const char* aFormat, va_list aArgs)
#ifdef __GNUC__
__attribute__((format(printf,
3,
0)))
#endif
;
int SNPrintf(
char* aBuf, std::size_t aSize,
const char* aFormat, ...)
#ifdef __GNUC__
__attribute__((format(printf,
3,
4)))
#endif
;
/*
* /!\ These functions use 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.
*/
void VFdPrintf(platform_handle_t aFd,
const char* aFormat, va_list aArgs)
#ifdef __GNUC__
__attribute__((format(printf,
2,
0)))
#endif
;
void FdPrintf(platform_handle_t aFd,
const char* aFormat, ...)
#ifdef __GNUC__
__attribute__((format(printf,
2,
3)))
#endif
;
// Write buffer contents without formatting (eg for use with SNPrintf).
void FdPuts(platform_handle_t aFd,
const char* aBuf, std::size_t aLen);
#endif /* FdPrintf_h_ */
