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| author | Edmond Chung <edmondchung@google.com> | 2019-07-22 14:59:36 -0700 |
|---|---|---|
| committer | Edmond Chung <edmondchung@google.com> | 2019-10-01 21:29:06 -0700 |
| commit | d87c487934d37f6b043b070e1789faf48416140d (patch) | |
| tree | f0cfe827e204d01b9115d43eaab43b0ed4a113b0 /lwis_transaction.h | |
| parent | 8930af537baf9ec9d89df17b651e686a1ea14ab9 (diff) | |
| download | lwis-d87c487934d37f6b043b070e1789faf48416140d.tar.gz | |
Transaction: Implement async i/o read/writes
Bug: 117126830
Change-Id: I37ed14fbbc6f119d37cb382f9b2c1f8f1281d4d5
Signed-off-by: Edmond Chung <edmondchung@google.com>
Diffstat (limited to 'lwis_transaction.h')
| -rw-r--r-- | lwis_transaction.h | 45 |
1 files changed, 45 insertions, 0 deletions
diff --git a/lwis_transaction.h b/lwis_transaction.h new file mode 100644 index 0000000..3cf85ab --- /dev/null +++ b/lwis_transaction.h @@ -0,0 +1,45 @@ +/* + * Google LWIS Transaction Processor + * + * Copyright (c) 2019 Google, LLC + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License version 2 as + * published by the Free Software Foundation. + */ + +#ifndef LWIS_TRANSACTION_H_ +#define LWIS_TRANSACTION_H_ + +#include "lwis_commands.h" +#include "lwis_device.h" + +/* Transaction entry. Each entry belongs to two queues: + * 1) Event list: Transactions are sorted by event IDs. This is to search for + * the appropriate transactions to trigger. + * 2) Process queue: When it's time to process, the transaction will be put + * into a queue. + */ +struct lwis_transaction { + struct lwis_transaction_info info; + struct lwis_transaction_response_header *resp; + struct list_head event_list_node; + struct list_head process_queue_node; +}; + +struct lwis_transaction_event_list { + uint64_t event_id; + struct list_head list; + struct hlist_node node; +}; + +int lwis_transaction_init(struct lwis_client *client); +int lwis_transaction_cleanup(struct lwis_client *client); + +int lwis_transaction_submit(struct lwis_client *client, + struct lwis_transaction *transaction); +int lwis_transaction_event_trigger(struct lwis_client *client, + int64_t event_id, uint64_t event_counter, + struct list_head *pending_events); + +#endif /* LWIS_TRANSACTION_H_ */
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