Debug (UART)

Github Repo	C Header	C source	JS source
cesanta/mongoose-os	mgos_debug.h	mgos_debug.c	api_log.js

mgos_debug_write

void mgos_debug_write(int fd, const void *buf, size_t len);

Write debug info buf, len to the given file descriptor fd.

mgos_debug_flush

void mgos_debug_flush(void);

Flush debug UARTs, both stdout and stderr.

mgos_set_stdout_uart

enum mgos_init_result mgos_set_stdout_uart(int uart_no);

Set UART for stdout. Negative value disables stdout.

mgos_set_stderr_uart

enum mgos_init_result mgos_set_stderr_uart(int uart_no);

Set UART for stderr. Negative value disables stderr.

mgos_get_stdout_uart

int mgos_get_stdout_uart(void);

Get stdout UART number; -1 indicates that stdout is disabled.

mgos_get_stderr_uart

int mgos_get_stderr_uart(void);

Get stderr UART number; -1 indicates that stderr is disabled.

mgos_debug_suspend_uart

void mgos_debug_suspend_uart(void);

Suspend UART output (both stdout and stderr); see mgos_debug_resume_uart(). Nested suspension is supported: UART needs to be resumed as many times as it was suspended.

mgos_debug_resume_uart

void mgos_debug_resume_uart(void);

Resume previously suspended UART output, see mgos_debug_suspend_uart().

mgos_debug_uart_is_suspended

bool mgos_debug_uart_is_suspended(void);

Returns whether UART output is suspended at the moment.

JS API

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Log.print

Log.print(level, msg)

Print message to stderr if provided level is >= Cfg.get('debug.level'). Possible levels are:

• Log.ERROR (0)
• Log.WARN (1)
• Log.INFO (2)
• Log.DEBUG (3)
• Log.VERBOSE_DEBUG (4)

  Log.error

Log.error(msg)

Shortcut for Log.print(Log.ERROR, msg)

Log.warn

Log.warn(msg)

Shortcut for Log.print(Log.WARN, msg)

Log.info

Log.info(msg)

Shortcut for Log.print(Log.INFO, msg)

Log.debug

Log.debug(msg)

Shortcut for Log.print(Log.DEBUG, msg)

Log.verboseDebug

Log.verboseDebug(msg)

Shortcut for Log.print(Log.VERBOSE_DEBUG, msg)

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