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61 lines
1.4 KiB
C
61 lines
1.4 KiB
C
#ifndef WALLET_DB_H
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#define WALLET_DB_H
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#include "config.h"
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#include "daemon/log.h"
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#include <sqlite3.h>
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#include <stdbool.h>
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struct db {
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char *filename;
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bool in_transaction;
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const char *err;
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sqlite3 *sql;
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};
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/**
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* db_setup - Open a the lightningd database and update the schema
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*
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* Opens the database, creating it if necessary, and applying
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* migrations until the schema is updated to the current state.
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*
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* Params:
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* @ctx: the tal_t context to allocate from
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* @log: where to log messages to
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*/
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struct db *db_setup(const tal_t *ctx);
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/**
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* db_query - Prepare and execute a query, and return the result
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*/
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sqlite3_stmt *PRINTF_FMT(3, 4)
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db_query(const char *caller, struct db *db, const char *fmt, ...);
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bool PRINTF_FMT(3, 4)
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db_exec(const char *caller, struct db *db, const char *fmt, ...);
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/**
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* db_begin_transaction - Begin a transaction
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*
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* We do not support nesting multiple transactions, so make sure that
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* we are not in a transaction when calling this. Returns true if we
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* succeeded in starting a transaction.
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*/
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bool db_begin_transaction(struct db *db);
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/**
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* db_commit_transaction - Commit a running transaction
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*
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* Requires that we are currently in a transaction. Returns whether
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* the commit was successful.
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*/
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bool db_commit_transaction(struct db *db);
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/**
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* db_rollback_transaction - Whoops... undo! undo!
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*/
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bool db_rollback_transaction(struct db *db);
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#endif /* WALLET_DB_H */
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