void swAio_handler_write_file(swAio_event *event)
{
int ret = -1;
int fd = open(event->req, event->flags, 0644);
if (fd < 0)
{
swSysWarn("open(%s, %d) failed", (char * )event->req, event->flags);
event->ret = ret;
event->error = errno;
return;
}
if (event->lock && flock(fd, LOCK_EX) < 0)
{
swSysWarn("flock(%d, LOCK_EX) failed", event->fd);
event->ret = ret;
event->error = errno;
close(fd);
return;
}
size_t written = swoole_sync_writefile(fd, event->buf, event->nbytes);
if (event->flags & SW_AIO_WRITE_FSYNC)
{
if (fsync(fd) < 0)
{
swSysWarn("fsync(%d) failed", event->fd);
}
}
if (event->lock && flock(fd, LOCK_UN) < 0)
{
swSysWarn("flock(%d, LOCK_UN) failed", event->fd);
}
close(fd);
event->ret = written;
event->error = 0;
}
int swTaskWorker_large_pack(swEventData *task, void *data, int data_len)
{
swPackage_task pkg;
memcpy(pkg.tmpfile, SwooleG.task_tmpdir, SwooleG.task_tmpdir_len);
#ifdef HAVE_MKOSTEMP
int tpm_fd = mkostemp(pkg.tmpfile, O_WRONLY);
#else
int tpm_fd = mkstemp(pkg.tmpfile);
#endif
if (tpm_fd < 0)
{
swWarn("mkdtemp(%s) failed. Error: %s[%d]", pkg.tmpfile, strerror(errno), errno);
return SW_ERR;
}
if (swoole_sync_writefile(tpm_fd, data, data_len) <=0)
{
swWarn("write to tmpfile failed.");
return SW_ERR;
}
/**
* from_fd == 1, read from file
*/
task->info.from_fd = 1;
task->info.len = sizeof(swPackage_task);
pkg.length = data_len;
memcpy(task->data, &pkg, sizeof(swPackage_task));
return SW_OK;
}
int swTaskWorker_large_pack(swEventData *task, void *data, int data_len)
{
swPackage_task pkg;
bzero(&pkg, sizeof(pkg));
memcpy(pkg.tmpfile, SwooleG.task_tmpdir, SwooleG.task_tmpdir_len);
//create temp file
int tmp_fd = swoole_tmpfile(pkg.tmpfile);
if (tmp_fd < 0)
{
return SW_ERR;
}
//write to file
if (swoole_sync_writefile(tmp_fd, data, data_len) <= 0)
{
swWarn("write to tmpfile failed.");
return SW_ERR;
}
task->info.len = sizeof(swPackage_task);
//use tmp file
swTask_type(task) |= SW_TASK_TMPFILE;
pkg.length = data_len;
memcpy(task->data, &pkg, sizeof(swPackage_task));
close(tmp_fd);
return SW_OK;
}
/**
* Send the task result to worker
*/
int swTaskWorker_finish(swServer *serv, char *data, int data_len, int flags)
{
swEventData buf;
if (!current_task)
{
swWarn("cannot use finish in worker");
return SW_ERR;
}
if (serv->task_worker_num < 1)
{
swWarn("cannot use task/finish, because no set serv->task_worker_num.");
return SW_ERR;
}
if (current_task->info.type == SW_EVENT_PIPE_MESSAGE)
{
swWarn("task/finish is not supported in onPipeMessage callback.");
return SW_ERR;
}
uint16_t source_worker_id = current_task->info.from_id;
swWorker *worker = swServer_get_worker(serv, source_worker_id);
if (worker == NULL)
{
swWarn("invalid worker_id[%d].", source_worker_id);
return SW_ERR;
}
int ret;
//for swoole_server_task
if (swTask_type(current_task) & SW_TASK_NONBLOCK)
{
buf.info.type = SW_EVENT_FINISH;
buf.info.fd = current_task->info.fd;
//callback function
if (swTask_type(current_task) & SW_TASK_CALLBACK)
{
flags |= SW_TASK_CALLBACK;
}
else if (swTask_type(current_task) & SW_TASK_COROUTINE)
{
flags |= SW_TASK_COROUTINE;
}
swTask_type(&buf) = flags;
//write to file
if (data_len >= SW_IPC_MAX_SIZE - sizeof(buf.info))
{
if (swTaskWorker_large_pack(&buf, data, data_len) < 0 )
{
swWarn("large task pack failed()");
return SW_ERR;
}
}
else
{
memcpy(buf.data, data, data_len);
buf.info.len = data_len;
}
if (worker->pool->use_socket && worker->pool->stream->last_connection > 0)
{
int32_t _len = htonl(data_len);
ret = swSocket_write_blocking(worker->pool->stream->last_connection, (void *) &_len, sizeof(_len));
if (ret > 0)
{
ret = swSocket_write_blocking(worker->pool->stream->last_connection, data, data_len);
}
}
else
{
ret = swWorker_send2worker(worker, &buf, sizeof(buf.info) + buf.info.len, SW_PIPE_MASTER);
}
}
else
{
uint64_t flag = 1;
/**
* Use worker shm store the result
*/
swEventData *result = &(serv->task_result[source_worker_id]);
swPipe *task_notify_pipe = &(serv->task_notify[source_worker_id]);
//lock worker
worker->lock.lock(&worker->lock);
if (swTask_type(current_task) & SW_TASK_WAITALL)
{
sw_atomic_t *finish_count = (sw_atomic_t*) result->data;
char *_tmpfile = result->data + 4;
int fd = open(_tmpfile, O_APPEND | O_WRONLY);
if (fd >= 0)
{
buf.info.type = SW_EVENT_FINISH;
buf.info.fd = current_task->info.fd;
swTask_type(&buf) = flags;
//result pack
if (data_len >= SW_IPC_MAX_SIZE - sizeof(buf.info))
{
if (swTaskWorker_large_pack(&buf, data, data_len) < 0)
{
swWarn("large task pack failed()");
buf.info.len = 0;
}
}
else
{
buf.info.len = data_len;
memcpy(buf.data, data, data_len);
}
//write to tmpfile
if (swoole_sync_writefile(fd, &buf, sizeof(buf.info) + buf.info.len) < 0)
{
swSysError("write(%s, %ld) failed.", _tmpfile, sizeof(buf.info) + buf.info.len);
}
sw_atomic_fetch_add(finish_count, 1);
close(fd);
}
}
else
{
result->info.type = SW_EVENT_FINISH;
result->info.fd = current_task->info.fd;
swTask_type(result) = flags;
if (data_len >= SW_IPC_MAX_SIZE - sizeof(buf.info))
{
if (swTaskWorker_large_pack(result, data, data_len) < 0)
{
//unlock worker
worker->lock.unlock(&worker->lock);
swWarn("large task pack failed()");
return SW_ERR;
}
}
else
{
memcpy(result->data, data, data_len);
result->info.len = data_len;
}
}
//unlock worker
worker->lock.unlock(&worker->lock);
while (1)
{
ret = task_notify_pipe->write(task_notify_pipe, &flag, sizeof(flag));
#ifdef HAVE_KQUEUE
if (ret < 0 && (errno == EAGAIN || errno == ENOBUFS))
#else
if (ret < 0 && errno == EAGAIN)
#endif
{
if (swSocket_wait(task_notify_pipe->getFd(task_notify_pipe, 1), -1, SW_EVENT_WRITE) == 0)
{
continue;
}
}
break;
}
}
if (ret < 0)
{
swWarn("TaskWorker: send result to worker failed. Error: %s[%d]", strerror(errno), errno);
}
return ret;
}
