static void write_frequent_update() {
FILE* handle = fopen (PENDING_FREQUENT_UPDATE_FILENAME, "w");
if (!handle) {
#ifndef NDEBUG
perror("Could not open update file for writing");
#endif
exit(1);
}
if (!fprintf(handle,
"%d\n%s\n",
FREQUENT_FILE_FORMAT_VERSION,
BUILD_ID) < 0) {
#ifndef NDEBUG
perror("Error writing update");
#endif
exit(1);
}
time_t current_timestamp = time(NULL);
if (!fprintf(handle,
"%s %" PRId64 " %d %" PRId64 "\n\n",
bismark_id,
start_timestamp_microseconds,
frequent_sequence_number,
(int64_t)current_timestamp) < 0) {
#ifndef NDEBUG
perror("Error writing update");
#endif
exit(1);
}
if (device_throughput_table_write_update(&device_throughput_table, handle)) {
exit(1);
}
fclose(handle);
char update_filename[FILENAME_MAX];
snprintf(update_filename,
FILENAME_MAX,
FREQUENT_UPDATE_FILENAME,
bismark_id,
start_timestamp_microseconds,
frequent_sequence_number);
if (rename(PENDING_FREQUENT_UPDATE_FILENAME, update_filename)) {
#ifndef NDEBUG
perror("Could not stage update");
#endif
exit(1);
}
++frequent_sequence_number;
device_throughput_table_init(&device_throughput_table);
}
static void write_frequent_update() {
printf("Writing frequent log to %s\n", PENDING_FREQUENT_UPDATE_FILENAME);
FILE* handle = fopen(PENDING_FREQUENT_UPDATE_FILENAME, "w");
if (!handle) {
perror("Could not open update file for writing");
exit(1);
}
if (fprintf(handle, "%d\n", FREQUENT_FILE_FORMAT_VERSION) < 0) {
perror("Error writing update");
exit(1);
}
time_t current_timestamp = time(NULL);
if (fprintf(handle, "%" PRId64 "\n", (int64_t)current_timestamp) < 0) {
perror("Error writing update");
exit(1);
}
if (fprintf(handle, "%s\n\n", buffer_to_hex(bismark_mac, ETH_ALEN)) < 0) {
perror("Error writing update");
exit(1);
}
if (device_throughput_table_write_update(&device_throughput_table, handle)) {
exit(1);
}
fclose(handle);
char update_filename[FILENAME_MAX];
snprintf(update_filename,
FILENAME_MAX,
FREQUENT_UPDATE_FILENAME,
bismark_id,
start_timestamp_microseconds,
frequent_sequence_number);
if (rename(PENDING_FREQUENT_UPDATE_FILENAME, update_filename)) {
perror("Could not stage update");
exit(1);
}
++frequent_sequence_number;
device_throughput_table_init(&device_throughput_table);
}
