jerryscript/rtthread-port/port.c

#include "jerry-port.h"

#include <rtthread.h>

/**
 * Signal the port that jerry experienced a fatal failure from which it cannot
 * recover.
 *
 * @param code gives the cause of the error.
 *
 * Note:
 *      Jerry expects the function not to return.
 *
 * Example: a libc-based port may implement this with exit() or abort(), or both.
 */
void jerry_port_fatal (jerry_fatal_code_t code)
{
    rt_kprintf("jerryScritp fatal...\n");
    rt_hw_interrupt_disable();
	while (1);
}

/*
 *  I/O Port API
 */
#define RT_JS_CONSOLEBUF_SIZE	128
static char rt_log_buf[RT_JS_CONSOLEBUF_SIZE];

/**
 * Print a string to the console. The function should implement a printf-like
 * interface, where the first argument specifies a format string on how to
 * stringify the rest of the parameter list.
 *
 * This function is only called with strings coming from the executed ECMAScript
 * wanting to print something as the result of its normal operation.
 *
 * It should be the port that decides what a "console" is.
 *
 * Example: a libc-based port may implement this with vprintf().
 */
void jerry_port_console (const char *format, ...)
{
	va_list args;
	rt_size_t length;

	va_start(args, format);
	/* the return value of vsnprintf is the number of bytes that would be
	 * written to buffer had if the size of the buffer been sufficiently
	 * large excluding the terminating null byte. If the output string
	 * would be larger than the rt_log_buf, we have to adjust the output
	 * length. */
	length = rt_vsnprintf(rt_log_buf, sizeof(rt_log_buf) - 1, format, args);
	if (length > RT_CONSOLEBUF_SIZE - 1)
		length = RT_CONSOLEBUF_SIZE - 1;
#ifdef RT_USING_DEVICE
	rt_kprintf("%s", rt_log_buf);
#else
	rt_hw_console_output(rt_log_buf);
#endif
	va_end(args);
}

/**
 * Display or log a debug/error message. The function should implement a printf-like
 * interface, where the first argument specifies the log level
 * and the second argument specifies a format string on how to stringify the rest
 * of the parameter list.
 *
 * This function is only called with messages coming from the jerry engine as
 * the result of some abnormal operation or describing its internal operations
 * (e.g., data structure dumps or tracing info).
 *
 * It should be the port that decides whether error and debug messages are logged to
 * the console, or saved to a database or to a file.
 *
 * Example: a libc-based port may implement this with vfprintf(stderr) or
 * vfprintf(logfile), or both, depending on log level.
 */
void jerry_port_log (jerry_log_level_t level, const char *format, ...)
{
	va_list args;
	rt_size_t length;

	va_start(args, format);
	/* the return value of vsnprintf is the number of bytes that would be
	 * written to buffer had if the size of the buffer been sufficiently
	 * large excluding the terminating null byte. If the output string
	 * would be larger than the rt_log_buf, we have to adjust the output
	 * length. */
	length = rt_vsnprintf(rt_log_buf, sizeof(rt_log_buf) - 1, format, args);
	if (length > RT_CONSOLEBUF_SIZE - 1)
		length = RT_CONSOLEBUF_SIZE - 1;
#ifdef RT_USING_DEVICE
	rt_kprintf("%s", rt_log_buf);
#else
	rt_hw_console_output(rt_log_buf);
#endif
	va_end(args);
}

/*
 * Date Port API
 */

/**
 * Get timezone and daylight saving data
 *
 * @return true  - if success
 *         false - otherwise
 */
bool jerry_port_get_time_zone (jerry_time_zone_t *tz_p)
{
	tz_p->offset = 0;
	tz_p->daylight_saving_time = 0;
	return true;
}

/**
 * Get system time
 *
 * @return milliseconds since Unix epoch
 */
double jerry_port_get_current_time (void)
{
    return rt_tick_get() * RT_TICK_PER_SECOND / 1000;
}