int Trick::DataRecordGroup::write_data(bool must_write) {
unsigned int local_buffer_num ;
unsigned int num_to_write ;
unsigned int writer_offset ;
if ( record and inited and (buffer_type == DR_No_Buffer or must_write) and (total_bytes_written <= max_file_size)) {
// buffer_mutex is used in this one place to prevent forced calls of write_data
// to not overwrite data being written by the asynchronous thread.
pthread_mutex_lock(&buffer_mutex) ;
local_buffer_num = buffer_num ;
if ( (local_buffer_num - writer_num) > max_num ) {
num_to_write = max_num ;
} else {
num_to_write = (local_buffer_num - writer_num) ;
}
writer_num = local_buffer_num - num_to_write ;
//! This loop pulls a "row" of time homogeneous data and writes it to the file
while ( writer_num != local_buffer_num ) {
writer_offset = writer_num % max_num ;
//! keep record of bytes written to file. Default max is 1GB
total_bytes_written += format_specific_write_data(writer_offset) ;
writer_num++ ;
}
pthread_mutex_unlock(&buffer_mutex) ;
}
return 0 ;
}
int Trick::DataRecordGroup::write_data(bool must_write) {
unsigned int local_buffer_num ;
unsigned int num_to_write ;
unsigned int writer_offset ;
if ( record and inited and (buffer_type == DR_No_Buffer or must_write)) {
pthread_mutex_lock(&buffer_mutex) ;
local_buffer_num = buffer_num ;
if ( (local_buffer_num - writer_num) > max_num ) {
num_to_write = max_num ;
} else {
num_to_write = (local_buffer_num - writer_num) ;
}
writer_num = local_buffer_num - num_to_write ;
//! This loop pulls a "row" of time homogeneous data and writes it to the file
while ( writer_num != local_buffer_num ) {
writer_offset = writer_num % max_num ;
format_specific_write_data(writer_offset) ;
writer_num++ ;
}
pthread_mutex_unlock(&buffer_mutex) ;
}
return 0 ;
}
