/**************************************************************************** * * Copyright (C) 2012 PX4 Development Team. All rights reserved. * Author: Lorenz Meier * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions * are met: * * 1. Redistributions of source code must retain the above copyright * notice, this list of conditions and the following disclaimer. * 2. Redistributions in binary form must reproduce the above copyright * notice, this list of conditions and the following disclaimer in * the documentation and/or other materials provided with the * distribution. * 3. Neither the name PX4 nor the names of its contributors may be * used to endorse or promote products derived from this software * without specific prior written permission. * * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE * COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS * OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN * ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE * POSSIBILITY OF SUCH DAMAGE. * ****************************************************************************/ /** * @file sdlog.c * @author Lorenz Meier * * Simple SD logger for flight data. Buffers new sensor values and * does the heavy SD I/O in a low-priority worker thread. */ #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include "sdlog_ringbuffer.h" static bool thread_should_exit = false; /**< Deamon exit flag */ static bool thread_running = false; /**< Deamon status flag */ static int deamon_task; /**< Handle of deamon task / thread */ static const int MAX_NO_LOGFOLDER = 999; /**< Maximum number of log folders */ static const char *mountpoint = "/fs/microsd"; static const char *mfile_in = "/etc/logging/logconv.m"; int sysvector_file = -1; int mavlink_fd = -1; struct sdlog_logbuffer lb; /* mutex / condition to synchronize threads */ pthread_mutex_t sysvector_mutex; pthread_cond_t sysvector_cond; /** * System state vector log buffer writing */ static void *sdlog_sysvector_write_thread(void *arg); /** * Create the thread to write the system vector */ pthread_t sysvector_write_start(struct sdlog_logbuffer *logbuf); /** * SD log management function. */ __EXPORT int sdlog_main(int argc, char *argv[]); /** * Mainloop of sd log deamon. */ int sdlog_thread_main(int argc, char *argv[]); /** * Print the correct usage. */ static void usage(const char *reason); static int file_exist(const char *filename); static int file_copy(const char *file_old, const char *file_new); static void handle_command(struct vehicle_command_s *cmd); /** * Print the current status. */ static void print_sdlog_status(void); /** * Create folder for current logging session. */ static int create_logfolder(char *folder_path); static void usage(const char *reason) { if (reason) fprintf(stderr, "%s\n", reason); errx(1, "usage: sdlog {start|stop|status} [-s ]\n\n"); } // XXX turn this into a C++ class unsigned sensor_combined_bytes = 0; unsigned actuator_outputs_bytes = 0; unsigned actuator_controls_bytes = 0; unsigned sysvector_bytes = 0; unsigned blackbox_file_bytes = 0; uint64_t starttime = 0; /* logging on or off, default to true */ bool logging_enabled = true; /** * The sd log deamon app only briefly exists to start * the background job. The stack size assigned in the * Makefile does only apply to this management task. * * The actual stack size should be set in the call * to task_spawn_cmd(). */ int sdlog_main(int argc, char *argv[]) { if (argc < 1) usage("missing command"); if (!strcmp(argv[1], "start")) { if (thread_running) { printf("sdlog already running\n"); /* this is not an error */ exit(0); } thread_should_exit = false; deamon_task = task_spawn_cmd("sdlog", SCHED_DEFAULT, SCHED_PRIORITY_DEFAULT - 30, 4096, sdlog_thread_main, (const char **)argv); exit(0); } if (!strcmp(argv[1], "stop")) { if (!thread_running) { printf("\tsdlog is not started\n"); } thread_should_exit = true; exit(0); } if (!strcmp(argv[1], "status")) { if (thread_running) { print_sdlog_status(); } else { printf("\tsdlog not started\n"); } exit(0); } usage("unrecognized command"); exit(1); } int create_logfolder(char *folder_path) { /* make folder on sdcard */ uint16_t foldernumber = 1; // start with folder 0001 int mkdir_ret; /* look for the next folder that does not exist */ while (foldernumber < MAX_NO_LOGFOLDER) { /* set up file path: e.g. /mnt/sdcard/sensorfile0001.txt */ sprintf(folder_path, "%s/session%04u", mountpoint, foldernumber); mkdir_ret = mkdir(folder_path, S_IRWXU | S_IRWXG | S_IRWXO); /* the result is -1 if the folder exists */ if (mkdir_ret == 0) { /* folder does not exist, success */ /* now copy the Matlab/Octave file */ char mfile_out[100]; sprintf(mfile_out, "%s/session%04u/run_to_plot_data.m", mountpoint, foldernumber); int ret = file_copy(mfile_in, mfile_out); if (!ret) { warnx("copied m file to %s", mfile_out); } else { warnx("failed copying m file from %s to\n %s", mfile_in, mfile_out); } break; } else if (mkdir_ret == -1) { /* folder exists already */ foldernumber++; continue; } else { warn("failed creating new folder"); return -1; } } if (foldernumber >= MAX_NO_LOGFOLDER) { /* we should not end up here, either we have more than MAX_NO_LOGFOLDER on the SD card, or another problem */ warn("all %d possible folders exist already", MAX_NO_LOGFOLDER); return -1; } return 0; } static void * sdlog_sysvector_write_thread(void *arg) { /* set name */ prctl(PR_SET_NAME, "sdlog microSD I/O", 0); struct sdlog_logbuffer *logbuf = (struct sdlog_logbuffer *)arg; int poll_count = 0; struct sdlog_sysvector sysvect; memset(&sysvect, 0, sizeof(sysvect)); while (!thread_should_exit) { /* make sure threads are synchronized */ pthread_mutex_lock(&sysvector_mutex); /* only wait if no data is available to process */ if (sdlog_logbuffer_is_empty(logbuf)) { /* blocking wait for new data at this line */ pthread_cond_wait(&sysvector_cond, &sysvector_mutex); } /* only quickly load data, do heavy I/O a few lines down */ int ret = sdlog_logbuffer_read(logbuf, &sysvect); /* continue */ pthread_mutex_unlock(&sysvector_mutex); if (ret == OK) { sysvector_bytes += write(sysvector_file, (const char *)&sysvect, sizeof(sysvect)); } if (poll_count % 100 == 0) { fsync(sysvector_file); } poll_count++; } fsync(sysvector_file); return OK; } pthread_t sysvector_write_start(struct sdlog_logbuffer *logbuf) { pthread_attr_t receiveloop_attr; pthread_attr_init(&receiveloop_attr); struct sched_param param; /* low priority, as this is expensive disk I/O */ param.sched_priority = SCHED_PRIORITY_DEFAULT - 40; (void)pthread_attr_setschedparam(&receiveloop_attr, ¶m); pthread_attr_setstacksize(&receiveloop_attr, 2048); pthread_t thread; pthread_create(&thread, &receiveloop_attr, sdlog_sysvector_write_thread, logbuf); return thread; // XXX we have to destroy the attr at some point } int sdlog_thread_main(int argc, char *argv[]) { mavlink_fd = open(MAVLINK_LOG_DEVICE, 0); if (mavlink_fd < 0) { warnx("ERROR: Failed to open MAVLink log stream, start mavlink app first.\n"); } /* log every n'th value (skip three per default) */ int skip_value = 3; /* work around some stupidity in task_create's argv handling */ argc -= 2; argv += 2; int ch; while ((ch = getopt(argc, argv, "s:r")) != EOF) { switch (ch) { case 's': { /* log only every n'th (gyro clocked) value */ unsigned s = strtoul(optarg, NULL, 10); if (s < 1 || s > 250) { errx(1, "Wrong skip value of %d, out of range (1..250)\n", s); } else { skip_value = s; } } break; case 'r': /* log only on request, disable logging per default */ logging_enabled = false; break; case '?': if (optopt == 'c') { warnx("Option -%c requires an argument.\n", optopt); } else if (isprint(optopt)) { warnx("Unknown option `-%c'.\n", optopt); } else { warnx("Unknown option character `\\x%x'.\n", optopt); } default: usage("unrecognized flag"); errx(1, "exiting."); } } if (file_exist(mountpoint) != OK) { errx(1, "logging mount point %s not present, exiting.", mountpoint); } char folder_path[64]; if (create_logfolder(folder_path)) errx(1, "unable to create logging folder, exiting."); FILE *gpsfile; FILE *blackbox_file; /* string to hold the path to the sensorfile */ char path_buf[64] = ""; /* only print logging path, important to find log file later */ warnx("logging to directory %s\n", folder_path); /* set up file path: e.g. /mnt/sdcard/session0001/actuator_controls0.bin */ sprintf(path_buf, "%s/%s.bin", folder_path, "sysvector"); if (0 == (sysvector_file = open(path_buf, O_CREAT | O_WRONLY | O_DSYNC))) { errx(1, "opening %s failed.\n", path_buf); } /* set up file path: e.g. /mnt/sdcard/session0001/gps.txt */ sprintf(path_buf, "%s/%s.txt", folder_path, "gps"); if (NULL == (gpsfile = fopen(path_buf, "w"))) { errx(1, "opening %s failed.\n", path_buf); } int gpsfile_no = fileno(gpsfile); /* set up file path: e.g. /mnt/sdcard/session0001/blackbox.txt */ sprintf(path_buf, "%s/%s.txt", folder_path, "blackbox"); if (NULL == (blackbox_file = fopen(path_buf, "w"))) { errx(1, "opening %s failed.\n", path_buf); } // XXX for fsync() calls int blackbox_file_no = fileno(blackbox_file); /* --- IMPORTANT: DEFINE NUMBER OF ORB STRUCTS TO WAIT FOR HERE --- */ /* number of messages */ const ssize_t fdsc = 25; /* Sanity check variable and index */ ssize_t fdsc_count = 0; /* file descriptors to wait for */ struct pollfd fds[fdsc]; struct { struct sensor_combined_s raw; struct vehicle_attitude_s att; struct vehicle_attitude_setpoint_s att_sp; struct actuator_outputs_s act_outputs; struct actuator_controls_s act_controls; struct actuator_controls_effective_s act_controls_effective; struct vehicle_command_s cmd; struct vehicle_local_position_s local_pos; struct vehicle_global_position_s global_pos; struct vehicle_gps_position_s gps_pos; struct vehicle_vicon_position_s vicon_pos; struct optical_flow_s flow; struct battery_status_s batt; struct differential_pressure_s diff_pres; struct airspeed_s airspeed; } buf; memset(&buf, 0, sizeof(buf)); struct { int cmd_sub; int sensor_sub; int att_sub; int spa_sub; int act_0_sub; int controls_0_sub; int controls_effective_0_sub; int local_pos_sub; int global_pos_sub; int gps_pos_sub; int vicon_pos_sub; int flow_sub; int batt_sub; int diff_pres_sub; int airspeed_sub; } subs; /* --- MANAGEMENT - LOGGING COMMAND --- */ /* subscribe to ORB for vehicle command */ subs.cmd_sub = orb_subscribe(ORB_ID(vehicle_command)); fds[fdsc_count].fd = subs.cmd_sub; fds[fdsc_count].events = POLLIN; fdsc_count++; /* --- GPS POSITION --- */ /* subscribe to ORB for global position */ subs.gps_pos_sub = orb_subscribe(ORB_ID(vehicle_gps_position)); fds[fdsc_count].fd = subs.gps_pos_sub; fds[fdsc_count].events = POLLIN; fdsc_count++; /* --- SENSORS RAW VALUE --- */ /* subscribe to ORB for sensors raw */ subs.sensor_sub = orb_subscribe(ORB_ID(sensor_combined)); fds[fdsc_count].fd = subs.sensor_sub; /* do not rate limit, instead use skip counter (aliasing on rate limit) */ fds[fdsc_count].events = POLLIN; fdsc_count++; /* --- ATTITUDE VALUE --- */ /* subscribe to ORB for attitude */ subs.att_sub = orb_subscribe(ORB_ID(vehicle_attitude)); fds[fdsc_count].fd = subs.att_sub; fds[fdsc_count].events = POLLIN; fdsc_count++; /* --- ATTITUDE SETPOINT VALUE --- */ /* subscribe to ORB for attitude setpoint */ /* struct already allocated */ subs.spa_sub = orb_subscribe(ORB_ID(vehicle_attitude_setpoint)); fds[fdsc_count].fd = subs.spa_sub; fds[fdsc_count].events = POLLIN; fdsc_count++; /** --- ACTUATOR OUTPUTS --- */ subs.act_0_sub = orb_subscribe(ORB_ID(actuator_outputs_0)); fds[fdsc_count].fd = subs.act_0_sub; fds[fdsc_count].events = POLLIN; fdsc_count++; /* --- ACTUATOR CONTROL VALUE --- */ /* subscribe to ORB for actuator control */ subs.controls_0_sub = orb_subscribe(ORB_ID_VEHICLE_ATTITUDE_CONTROLS); fds[fdsc_count].fd = subs.controls_0_sub; fds[fdsc_count].events = POLLIN; fdsc_count++; /* --- ACTUATOR CONTROL EFFECTIVE VALUE --- */ /* subscribe to ORB for actuator control */ subs.controls_effective_0_sub = orb_subscribe(ORB_ID_VEHICLE_ATTITUDE_CONTROLS_EFFECTIVE); fds[fdsc_count].fd = subs.controls_effective_0_sub; fds[fdsc_count].events = POLLIN; fdsc_count++; /* --- LOCAL POSITION --- */ /* subscribe to ORB for local position */ subs.local_pos_sub = orb_subscribe(ORB_ID(vehicle_local_position)); fds[fdsc_count].fd = subs.local_pos_sub; fds[fdsc_count].events = POLLIN; fdsc_count++; /* --- GLOBAL POSITION --- */ /* subscribe to ORB for global position */ subs.global_pos_sub = orb_subscribe(ORB_ID(vehicle_global_position)); fds[fdsc_count].fd = subs.global_pos_sub; fds[fdsc_count].events = POLLIN; fdsc_count++; /* --- VICON POSITION --- */ /* subscribe to ORB for vicon position */ subs.vicon_pos_sub = orb_subscribe(ORB_ID(vehicle_vicon_position)); fds[fdsc_count].fd = subs.vicon_pos_sub; fds[fdsc_count].events = POLLIN; fdsc_count++; /* --- FLOW measurements --- */ /* subscribe to ORB for flow measurements */ subs.flow_sub = orb_subscribe(ORB_ID(optical_flow)); fds[fdsc_count].fd = subs.flow_sub; fds[fdsc_count].events = POLLIN; fdsc_count++; /* --- BATTERY STATUS --- */ /* subscribe to ORB for flow measurements */ subs.batt_sub = orb_subscribe(ORB_ID(battery_status)); fds[fdsc_count].fd = subs.batt_sub; fds[fdsc_count].events = POLLIN; fdsc_count++; /* --- DIFFERENTIAL PRESSURE --- */ /* subscribe to ORB for flow measurements */ subs.diff_pres_sub = orb_subscribe(ORB_ID(differential_pressure)); fds[fdsc_count].fd = subs.diff_pres_sub; fds[fdsc_count].events = POLLIN; fdsc_count++; /* --- AIRSPEED --- */ /* subscribe to ORB for airspeed */ subs.airspeed_sub = orb_subscribe(ORB_ID(airspeed)); fds[fdsc_count].fd = subs.airspeed_sub; fds[fdsc_count].events = POLLIN; fdsc_count++; /* WARNING: If you get the error message below, * then the number of registered messages (fdsc) * differs from the number of messages in the above list. */ if (fdsc_count > fdsc) { warn("WARNING: Not enough space for poll fds allocated. Check %s:%d.\n", __FILE__, __LINE__); fdsc_count = fdsc; } /* * set up poll to block for new data, * wait for a maximum of 1000 ms (1 second) */ // const int timeout = 1000; thread_running = true; /* initialize log buffer with a size of 10 */ sdlog_logbuffer_init(&lb, 10); /* initialize thread synchronization */ pthread_mutex_init(&sysvector_mutex, NULL); pthread_cond_init(&sysvector_cond, NULL); /* start logbuffer emptying thread */ pthread_t sysvector_pthread = sysvector_write_start(&lb); starttime = hrt_absolute_time(); /* track skipping */ int skip_count = 0; while (!thread_should_exit) { /* only poll for commands, gps and sensor_combined */ int poll_ret = poll(fds, 3, 1000); /* handle the poll result */ if (poll_ret == 0) { /* XXX this means none of our providers is giving us data - might be an error? */ } else if (poll_ret < 0) { /* XXX this is seriously bad - should be an emergency */ } else { int ifds = 0; /* --- VEHICLE COMMAND VALUE --- */ if (fds[ifds++].revents & POLLIN) { /* copy command into local buffer */ orb_copy(ORB_ID(vehicle_command), subs.cmd_sub, &buf.cmd); /* always log to blackbox, even when logging disabled */ blackbox_file_bytes += fprintf(blackbox_file, "[%10.4f\tVCMD] CMD #%d [%f\t%f\t%f\t%f\t%f\t%f\t%f]\n", hrt_absolute_time()/1000000.0d, buf.cmd.command, (double)buf.cmd.param1, (double)buf.cmd.param2, (double)buf.cmd.param3, (double)buf.cmd.param4, (double)buf.cmd.param5, (double)buf.cmd.param6, (double)buf.cmd.param7); handle_command(&buf.cmd); } /* --- VEHICLE GPS VALUE --- */ if (fds[ifds++].revents & POLLIN) { /* copy gps position into local buffer */ orb_copy(ORB_ID(vehicle_gps_position), subs.gps_pos_sub, &buf.gps_pos); /* if logging disabled, continue */ if (logging_enabled) { /* write KML line */ } } /* --- SENSORS RAW VALUE --- */ if (fds[ifds++].revents & POLLIN) { // /* copy sensors raw data into local buffer */ // orb_copy(ORB_ID(sensor_combined), subs.sensor_sub, &buf.raw); // /* write out */ // sensor_combined_bytes += write(sensorfile, (const char*)&(buf.raw), sizeof(buf.raw)); /* always copy sensors raw data into local buffer, since poll flags won't clear else */ orb_copy(ORB_ID(sensor_combined), subs.sensor_sub, &buf.raw); orb_copy(ORB_ID_VEHICLE_ATTITUDE_CONTROLS, subs.controls_0_sub, &buf.act_controls); orb_copy(ORB_ID_VEHICLE_ATTITUDE_CONTROLS_EFFECTIVE, subs.controls_effective_0_sub, &buf.act_controls_effective); orb_copy(ORB_ID(actuator_outputs_0), subs.act_0_sub, &buf.act_outputs); orb_copy(ORB_ID(vehicle_attitude_setpoint), subs.spa_sub, &buf.att_sp); orb_copy(ORB_ID(vehicle_gps_position), subs.gps_pos_sub, &buf.gps_pos); orb_copy(ORB_ID(vehicle_local_position), subs.local_pos_sub, &buf.local_pos); orb_copy(ORB_ID(vehicle_global_position), subs.global_pos_sub, &buf.global_pos); orb_copy(ORB_ID(vehicle_attitude), subs.att_sub, &buf.att); orb_copy(ORB_ID(vehicle_vicon_position), subs.vicon_pos_sub, &buf.vicon_pos); orb_copy(ORB_ID(optical_flow), subs.flow_sub, &buf.flow); orb_copy(ORB_ID(differential_pressure), subs.diff_pres_sub, &buf.diff_pres); orb_copy(ORB_ID(airspeed), subs.airspeed_sub, &buf.airspeed); orb_copy(ORB_ID(battery_status), subs.batt_sub, &buf.batt); /* if skipping is on or logging is disabled, ignore */ if (skip_count < skip_value || !logging_enabled) { skip_count++; /* do not log data */ continue; } else { /* log data, reset */ skip_count = 0; } struct sdlog_sysvector sysvect = { .timestamp = buf.raw.timestamp, .gyro = {buf.raw.gyro_rad_s[0], buf.raw.gyro_rad_s[1], buf.raw.gyro_rad_s[2]}, .accel = {buf.raw.accelerometer_m_s2[0], buf.raw.accelerometer_m_s2[1], buf.raw.accelerometer_m_s2[2]}, .mag = {buf.raw.magnetometer_ga[0], buf.raw.magnetometer_ga[1], buf.raw.magnetometer_ga[2]}, .baro = buf.raw.baro_pres_mbar, .baro_alt = buf.raw.baro_alt_meter, .baro_temp = buf.raw.baro_temp_celcius, .control = {buf.act_controls.control[0], buf.act_controls.control[1], buf.act_controls.control[2], buf.act_controls.control[3]}, .actuators = { buf.act_outputs.output[0], buf.act_outputs.output[1], buf.act_outputs.output[2], buf.act_outputs.output[3], buf.act_outputs.output[4], buf.act_outputs.output[5], buf.act_outputs.output[6], buf.act_outputs.output[7] }, .vbat = buf.batt.voltage_v, .bat_current = buf.batt.current_a, .bat_discharged = buf.batt.discharged_mah, .adc = {buf.raw.adc_voltage_v[0], buf.raw.adc_voltage_v[1], buf.raw.adc_voltage_v[2], buf.raw.adc_voltage_v[3]}, .local_position = {buf.local_pos.x, buf.local_pos.y, buf.local_pos.z}, .gps_raw_position = {buf.gps_pos.lat, buf.gps_pos.lon, buf.gps_pos.alt}, .attitude = {buf.att.pitch, buf.att.roll, buf.att.yaw}, .rotMatrix = {buf.att.R[0][0], buf.att.R[0][1], buf.att.R[0][2], buf.att.R[1][0], buf.att.R[1][1], buf.att.R[1][2], buf.att.R[2][0], buf.att.R[2][1], buf.att.R[2][2]}, .vicon = {buf.vicon_pos.x, buf.vicon_pos.y, buf.vicon_pos.z, buf.vicon_pos.roll, buf.vicon_pos.pitch, buf.vicon_pos.yaw}, .control_effective = {buf.act_controls_effective.control_effective[0], buf.act_controls_effective.control_effective[1], buf.act_controls_effective.control_effective[2], buf.act_controls_effective.control_effective[3]}, .flow = {buf.flow.flow_raw_x, buf.flow.flow_raw_y, buf.flow.flow_comp_x_m, buf.flow.flow_comp_y_m, buf.flow.ground_distance_m, buf.flow.quality}, .diff_pressure = buf.diff_pres.differential_pressure_pa, .ind_airspeed = buf.airspeed.indicated_airspeed_m_s, .true_airspeed = buf.airspeed.true_airspeed_m_s }; /* put into buffer for later IO */ pthread_mutex_lock(&sysvector_mutex); sdlog_logbuffer_write(&lb, &sysvect); /* signal the other thread new data, but not yet unlock */ if ((unsigned)lb.count > (lb.size / 2)) { /* only request write if several packets can be written at once */ pthread_cond_signal(&sysvector_cond); } /* unlock, now the writer thread may run */ pthread_mutex_unlock(&sysvector_mutex); } } } print_sdlog_status(); /* wake up write thread one last time */ pthread_mutex_lock(&sysvector_mutex); pthread_cond_signal(&sysvector_cond); /* unlock, now the writer thread may return */ pthread_mutex_unlock(&sysvector_mutex); /* wait for write thread to return */ (void)pthread_join(sysvector_pthread, NULL); pthread_mutex_destroy(&sysvector_mutex); pthread_cond_destroy(&sysvector_cond); warnx("exiting.\n\n"); /* finish KML file */ // XXX fclose(gpsfile); fclose(blackbox_file); thread_running = false; return 0; } void print_sdlog_status() { unsigned bytes = sysvector_bytes + sensor_combined_bytes + actuator_outputs_bytes + blackbox_file_bytes + actuator_controls_bytes; float mebibytes = bytes / 1024.0f / 1024.0f; float seconds = ((float)(hrt_absolute_time() - starttime)) / 1000000.0f; warnx("wrote %4.2f MiB (average %5.3f MiB/s).\n", (double)mebibytes, (double)(mebibytes / seconds)); } /** * @return 0 if file exists */ int file_exist(const char *filename) { struct stat buffer; return stat(filename, &buffer); } int file_copy(const char *file_old, const char *file_new) { FILE *source, *target; source = fopen(file_old, "r"); int ret = 0; if (source == NULL) { warnx("failed opening input file to copy"); return 1; } target = fopen(file_new, "w"); if (target == NULL) { fclose(source); warnx("failed to open output file to copy"); return 1; } char buf[128]; int nread; while ((nread = fread(buf, 1, sizeof(buf), source)) > 0) { int ret = fwrite(buf, 1, nread, target); if (ret <= 0) { warnx("error writing file"); ret = 1; break; } } fsync(fileno(target)); fclose(source); fclose(target); return ret; } void handle_command(struct vehicle_command_s *cmd) { /* result of the command */ uint8_t result = VEHICLE_CMD_RESULT_UNSUPPORTED; /* request to set different system mode */ switch (cmd->command) { case VEHICLE_CMD_PREFLIGHT_STORAGE: if (((int)(cmd->param3)) == 1) { /* enable logging */ mavlink_log_info(mavlink_fd, "[log] file:"); mavlink_log_info(mavlink_fd, "logdir"); logging_enabled = true; } if (((int)(cmd->param3)) == 0) { /* disable logging */ mavlink_log_info(mavlink_fd, "[log] stopped."); logging_enabled = false; } break; default: /* silently ignore */ break; } }