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RRTcodebaseC

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{
while (1) {
pthread_mutex_lock(&context->smtpidle_condmutex);
if (context->smtp_doing_jobs==0) {
pthread_mutex_unlock(&context->smtpidle_condmutex);
return;
}
pthread_mutex_unlock(&context->smtpidle_condmutex);
usleep(300*1000);
}
}
}
/*******************************************************************************
* Tools
******************************************************************************/
static time_t get_backoff_time_offset(int c_tries)
{
#define MULTIPLY 60
#define JOB_RETRIES 17 // results in ~3 weeks for the last backoff timespan
time_t N = (time_t)pow((double)2, c_tries - 1);
N = N * MULTIPLY;
time_t seconds = rand() % (N+1);
if (seconds<1) {
seconds = 1;
}
return seconds;
}
static time_t get_next_wakeup_time(dc_context_t* context, int thread)
{
time_t wakeup_time = 0;
sqlite3_stmt* stmt = NULL;
stmt = dc_sqlite3_prepare(context->sql,
"SELECT MIN(desired_timestamp)"
" FROM jobs"
" WHERE thread=?;");
sqlite3_bind_int(stmt, 1, thread);
if (sqlite3_step(stmt)==SQLITE_ROW) {
wakeup_time = sqlite3_column_int(stmt, 0);
}
if (wakeup_time==0) {
wakeup_time = time(NULL) + 10*60;
}
sqlite3_finalize(stmt);
return wakeup_time;
}
int dc_job_action_exists(dc_context_t* context, int action)
{
int job_exists = 0;
sqlite3_stmt* stmt = NULL;
stmt = dc_sqlite3_prepare(context->sql,
"SELECT id FROM jobs WHERE action=?;");
sqlite3_bind_int (stmt, 1, action);
job_exists = (sqlite3_step(stmt)==SQLITE_ROW);
sqlite3_finalize(stmt);
return job_exists;
}
void dc_job_add(dc_context_t* context, int action, int foreign_id, const char* param, int delay_seconds)
{
time_t timestamp = time(NULL);
sqlite3_stmt* stmt = NULL;
int thread = 0;
if (action >= DC_IMAP_THREAD && action < DC_IMAP_THREAD+1000) {
thread = DC_IMAP_THREAD;
}
else if (action >= DC_SMTP_THREAD && action < DC_SMTP_THREAD+1000) {
thread = DC_SMTP_THREAD;
}
else {
return;
}
stmt = dc_sqlite3_prepare(context->sql,
"INSERT INTO jobs (added_timestamp, thread, action, foreign_id, param, desired_timestamp) VALUES (?,?,?,?,?,?);");
sqlite3_bind_int64(stmt, 1, timestamp);
sqlite3_bind_int (stmt, 2, thread);
sqlite3_bind_int (stmt, 3, action);
sqlite3_bind_int (stmt, 4, foreign_id);
sqlite3_bind_text (stmt, 5, param? param : "", -1, SQLITE_STATIC);