log.c

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/**
 * @file log.c
 * @brief SPP logging service implementation.
 */
 
#include "spp/services/log/log.h"
 
#include <stdio.h>
#include <stdarg.h>
 
#define K_LOG_BUF_SIZE (256U)
 
static SPP_LogLevel_t    s_level = K_SPP_LOG_VERBOSE;
static SPP_LogOutputFn_t s_outFn = NULL;
 
/* ----------------------------------------------------------------
 * Public API
 * ---------------------------------------------------------------- */
 
SPP_RetVal_t SPP_SERVICES_LOG_init(void)
{
    s_level = K_SPP_LOG_VERBOSE;
    s_outFn = NULL;
    return K_SPP_OK;
}
 
void SPP_SERVICES_LOG_setLevel(SPP_LogLevel_t level)
{
    s_level = level;
}
 
SPP_LogLevel_t SPP_SERVICES_LOG_getLevel(void)
{
    return s_level;
}
 
void SPP_SERVICES_LOG_setOutput(SPP_LogOutputFn_t p_fn)
{
    s_outFn = p_fn;
}
 
void SPP_SERVICES_LOG_emit(const char *p_tag, SPP_LogLevel_t level,
                            const char *p_fmt, ...)
{
    if ((level > s_level) || (s_outFn == NULL))
    {
        return;
    }
 
    char buf[K_LOG_BUF_SIZE];
    va_list args;
    va_start(args, p_fmt);
    (void)vsnprintf(buf, sizeof(buf), p_fmt, args);
    va_end(args);
 
    s_outFn(p_tag, level, buf);
}