HardFault/Middlewares/elog/elog_test.c

#include <elog.h>

static elog_t *logger;
static char arena[1024];

static void log_to_semihost(elog_entry_t *e, int len, void *ctx)
{
    // TODO: 直接通过协议发送出去 elog_t 的所有缓存log
    uint32_t *p = (void *)e;
    int num = len / sizeof(uint32_t);

    if(STR_FIXED_LEN== MSGPTR_LEN(p[0]))
    {
        num = 2;
    }

    rt_kprintf("num:%d\n", num);
    rt_kprintf("len:%d\n", MSGPTR_LEN(p[0])); // 通过msg->id解出参数个数

    for(int i = 0; i < num; i++)
    {
        if(0 == i)
        {
            rt_kprintf("0x%08X ", MSGPTR_MSG(p[i])); // 通过msg_id解出参数内容
            continue;
        }
        else if (STR_FIXED_LEN == MSGPTR_LEN(p[0]))
        {
            rt_kprintf("%s ", &p[i]); // 通过msg_id解出参数内容
            continue;
        }

        rt_kprintf("%d ", p[i]);
    }

    rt_kprintf("\n\n");
}

int elog_test(void)
{
    logger = elog_init(arena, sizeof(arena));
    ELOG(logger, "Hello world %d\n", 10);  // 把字符串和参数放到内存中，（通过字符串 + 长度算法生成msg_id）和会形成一条msg_id和长度
    ELOG(logger, "test %d %d %d\n", 1, 2, 3);
    ELOG(logger, "no agrc test\n");
    const char string[] = "this is test param string";
    ELOG_STR(logger, "string test: %s\n", string);
    ELOG_PRINT(logger, "test:%d,-- %s,-- %d, test end\n", 89, string, 23);

    ELOG_PRINT(logger, "test %d %d %u\n", 1, 2, 3);

    elog_flush(logger, log_to_semihost, NULL);  // 将内存中的日志刷新到文件，也可以是传输到上位机。也就是之前(字符串和参数)生成的msg_id和长度
    return 0;
}