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DataFlash: periodically use lseek to avoid NuttX seek bug

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This commit is contained in:
Andrew Tridgell
2014-02-16 13:21:35 +11:00
parent 9bb8f73d56
commit 6618bdae67
1 changed files with 7 additions and 0 deletions
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libraries/DataFlash/DataFlash_File.cpp
+7
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@@ -447,6 +447,8 @@ void DataFlash_File::LogReadProcess(uint16_t log_num,
_read_offset = start_page * DATAFLASH_PAGE_SIZE;
}
uint8_t log_counter = 0;
while (true) {
uint8_t data;
if (::read(_read_fd, &data, 1) != 1) {
@@ -474,6 +476,11 @@ void DataFlash_File::LogReadProcess(uint16_t log_num,
case 2:
log_step = 0;
_print_log_entry(data, print_mode, port);
log_counter++;
if (log_counter == 10) {
log_counter = 0;
::lseek(_read_fd, 0, SEEK_CUR);
}
break;
}
if (_read_offset >= (end_page+1) * DATAFLASH_PAGE_SIZE) {