Hey guys.
As was being discussed yesterday, I have four processes accessing the
same database file. When they perform an sqlite action, I wish them to
block if the DB is not available. SQLite does not block if it finds the
db busy or locked, it returns an error code.
I plan on using busy-waiting to implement my block - here is my code:
bool tryAgain = true;
while (tryAgain)
{
tryAgain = false;
ClearErrorString();
iResult = sqlite3_exec(m_pDatabase, sql, Callback,
(void*)pResultSet, &m_szErrorString);
if (iResult == SQLITE_LOCKED || iResult == SQLITE_BUSY)
{
tryAgain = true;
Platform::sleep(10);
}
}
Any feedback on this (especially with reference to how long I should
sleep for) would be much appreciated. Also, I know this is pretty
horrible - any suggestions for a better approach would also be great.
Thanks,
Ian
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