1 /* 2 * Copyright (C) 2016 The Android Open Source Project 3 * 4 * Licensed under the Apache License, Version 2.0 (the "License"); 5 * you may not use this file except in compliance with the License. 6 * You may obtain a copy of the License at 7 * 8 * http://www.apache.org/licenses/LICENSE-2.0 9 * 10 * Unless required by applicable law or agreed to in writing, software 11 * distributed under the License is distributed on an "AS IS" BASIS, 12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 13 * See the License for the specific language governing permissions and 14 * limitations under the License. 15 */ 16 17 #ifndef _PRINTF_H_ 18 #define _PRINTF_H_ 19 20 #ifdef __cplusplus 21 extern "C" { 22 #endif 23 24 #include <stdbool.h> 25 #include <stdint.h> 26 #include <stdarg.h> 27 28 #define PRINTF_FLAG_CHRE 0x00000001 29 #define PRINTF_FLAG_SHORT_DOUBLE 0x00000002 30 31 typedef bool (*printf_write_c)(void* userData, char c); //callback can return false anytime to abort printing immediately 32 33 uint32_t cvprintf(printf_write_c writeF, uint32_t flags, void* writeD, const char* fmtStr, va_list vl); 34 35 #ifdef __cplusplus 36 } 37 #endif 38 39 #endif 40