px4::logger::util Namespace Reference

Functions
bool	file_exist (const char *filename)
	check if a file exists More...
bool	get_log_time (struct tm *tt, int utc_offset_sec=0, bool boot_time=false)
	Get the time for log file name. More...
int	check_free_space (const char *log_root_dir, int32_t max_log_dirs_to_keep, orb_advert_t &mavlink_log_pub, int &sess_dir_index)
	Check if there is enough free space left on the SD Card. More...
int	remove_directory (const char *dir)
	Recursively remove a directory. More...

Function Documentation

check_free_space()

int px4::logger::util::check_free_space	(	const char *	log_root_dir,
		int32_t	max_log_dirs_to_keep,
		orb_advert_t &	mavlink_log_pub,
		int &	sess_dir_index
	)

Check if there is enough free space left on the SD Card.

It will remove old log files if there is not enough space, and if that fails return 1, and send a user message

Parameters

log_root_dir	log root directory: it's expected to contain directories in the form of sessi or d-d-d (year, month, day)
max_log_dirs_to_keep	maximum log directories to keep (set to 0 for unlimited)
mavlink_log_pub
sess_dir_index	output argument: will be set to the next free directory sessi index.

Returns

0 on success, 1 if not enough space, <0 on error

Definition at line 114 of file util.cpp.

References LOG_DIR_LEN, mavlink_log_critical, px4_statfs_buf_f_bavail_t, and remove_directory().

Referenced by px4::logger::Logger::run().

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file_exist()

bool px4::logger::util::file_exist

(

const char *

filename

)

check if a file exists

Definition at line 68 of file util.cpp.

Referenced by px4::logger::Logger::get_log_file_name().

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get_log_time()

bool px4::logger::util::get_log_time	(	struct tm *	tt,
		int	utc_offset_sec = 0,
		bool	boot_time = false
	)

Get the time for log file name.

Parameters

tt	returned time
utc_offset_sec	UTC time offset [s]
boot_time	use time when booted instead of current time

Returns

true on success, false otherwise (eg. if no gps)

Definition at line 74 of file util.cpp.

References vehicle_gps_position_s::fix_type, GPS_EPOCH_SECS, hrt_absolute_time(), ORB_ID, and vehicle_gps_position_s::time_utc_usec.

Referenced by px4::logger::Logger::get_log_file_name().

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remove_directory()

int px4::logger::util::remove_directory

(

const char *

dir

)

Recursively remove a directory.

Returns

0 on success, <0 otherwise

Definition at line 238 of file util.cpp.

Referenced by check_free_space().

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