Mirror
/
ardupilot
mirror of https://github.com/ArduPilot/ardupilot
5
0
Fork 0
Code Issues Packages Projects Releases Wiki Activity

DataFlash: stop write logging while reading 

prevents nuttx getting confused
This commit is contained in:
Andrew Tridgell 2013-12-28 14:24:28 +11:00
parent ff7004fcc5
commit e1a86440bb
2 changed files with 17 additions and 5 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

20
libraries/DataFlash/DataFlash_File.cpp
View File

@ -269,7 +269,8 @@ int16_t DataFlash_File::get_log_data(uint16_t log_num, uint16_t page, uint32_t o
if (fname == NULL) {
return -1;
}
_read_fd = open(fname, O_RDONLY);
stop_logging();
_read_fd = ::open(fname, O_RDONLY);
free(fname);
if (_read_fd == -1) {
return -1;
@ -314,17 +315,26 @@ uint16_t DataFlash_File::get_num_logs(void)
return ret;
}
/*
start writing to a new log file
stop logging
*/
uint16_t DataFlash_File::start_new_log(void)
void DataFlash_File::stop_logging(void)
{
if (_write_fd != -1) {
int fd = _write_fd;
_write_fd = -1;
::close(fd);
}
}
/*
start writing to a new log file
*/
uint16_t DataFlash_File::start_new_log(void)
{
stop_logging();
if (_read_fd != -1) {
::close(_read_fd);
_read_fd = -1;
@ -515,7 +525,7 @@ void DataFlash_File::_io_timer(void)
assert(_writebuf_head+nbytes <= _writebuf_size);
ssize_t nwritten = ::write(_write_fd, &_writebuf[_writebuf_head], nbytes);
if (nwritten <= 0) {
hal.console->printf("DataFlash write: %d %d\n", (int)nwritten, (int)errno);
//hal.console->printf("DataFlash write: %d %d\n", (int)nwritten, (int)errno);
close(_write_fd);
_write_fd = -1;
_initialised = false;

2
libraries/DataFlash/DataFlash_File.h
View File

@ -68,6 +68,8 @@ private:
uint32_t _get_log_size(uint16_t log_num);
uint32_t _get_log_time(uint16_t log_num);
void stop_logging(void);
void _io_timer(void);
};