Xively C library
Dependents: Application-xively-jumpstart-demo Application-xively-jumpstart-demo Modified_Xively_Jumpstart HW7-1_Xively_Thermostat
xi_printf.h
00001 // Copyright (c) 2003-2013, LogMeIn, Inc. All rights reserved. 00002 // This is part of Xively C library, it is under the BSD 3-Clause license. 00003 00004 /** 00005 * \file xi_printf.h 00006 * \author Olgierd Humenczuk 00007 * \brief Our custom `printf()` hook 00008 * 00009 * This is needed on embedded devices, as there is no way to redirect 00010 * the output neither it has any logging facilities out of the box. 00011 * We currently use a function pointer (`user_print_t`) and and the 00012 * user can assign to an external variable (`USER_PRINTF`) to call 00013 * whatever device platform may have available. 00014 */ 00015 00016 #ifndef __XI_PRINTF_H__ 00017 #define __XI_PRINTF_H__ 00018 00019 #ifdef __cplusplus 00020 extern "C" { 00021 #endif 00022 00023 typedef void ( *user_print_t )( const char* ); 00024 00025 extern user_print_t USER_PRINT; 00026 00027 int xi_printf( const char *fmt, ... ); 00028 00029 #ifdef __cplusplus 00030 } 00031 #endif 00032 00033 #endif //__XI_PRINTF_H__
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