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mylog interface

void mylog(loglevel_t level, char** output, const char* fmt, ...);

Variadic function.

    /**
     * @name   mylog
     * @note   collects log entries into the output buffer with timestamp and loglevel info
     * @param  loglevel_t level: loglevel - enum type: 0 - INFO, 1 - DEBUG
     *         2 - WARNING, 3 - ERROR
     * @param  char** output: the address of the message pool where
     *         chunks are collected before send to output    
     * @param  const char* fm: format - printf like format string
     * @retval None
     */
    void mylog(loglevel_t loglevel, char **dst, const char *format, ...);

loglevel_t loglevel - INFO, DEBUG, WARNING, ERROR

    typedef enum { INFO, DEBUG, WARNING, ERROR } loglevel_t;

char** output - pointer to the address of ouput pool

char* fmt - printf like format string

... argument list reference

Description

The mylog allocates and reallocates output buffer - referenced by char** output - as new formatted strings added to the message pool.

void mylog_printf(FILE *stream, char *outstr);

    /**
     * @name   mylog_printf
     * @note   sends output pool contents to the output stream
     * @param  FILE* stream: the output stream - stdout, stderr or any FILE* pointer
     * @param  char* outstr: the output pool with collected chunks of strings
     * @retval None
     */
    void mylog_printf(FILE *stream, char *outstr);

FILE* stream - output stream

char* outstr - the pool of accumulated output strings

Description

mylog_printf puts the accumulated output messages pool contents to the FILE* referenced output stream, then frees up the allocated memory of the output pool.

Every time when user calls at least once the mylog function, then the user MUST call the mylog_printf - or at least free(outstr) before leave the code block, otherwise memory exhaustion may occure!

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