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86 lines
1.7 KiB
C
86 lines
1.7 KiB
C
// Copyright (C) 2018 Yasuhiro Matsumoto <mattn.jp@gmail.com>.
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//
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// Use of this source code is governed by an MIT-style
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// license that can be found in the LICENSE file.
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#ifdef SQLITE_ENABLE_UNLOCK_NOTIFY
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#include <stdio.h>
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#include <sqlite3-binding.h>
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extern int unlock_notify_wait(sqlite3 *db);
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int
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_sqlite3_step_blocking(sqlite3_stmt *stmt)
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{
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int rv;
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sqlite3* db;
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db = sqlite3_db_handle(stmt);
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for (;;) {
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rv = sqlite3_step(stmt);
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if (rv != SQLITE_LOCKED) {
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break;
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}
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if (sqlite3_extended_errcode(db) != SQLITE_LOCKED_SHAREDCACHE) {
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break;
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}
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rv = unlock_notify_wait(db);
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if (rv != SQLITE_OK) {
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break;
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}
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sqlite3_reset(stmt);
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}
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return rv;
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}
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int
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_sqlite3_step_row_blocking(sqlite3_stmt* stmt, long long* rowid, long long* changes)
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{
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int rv;
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sqlite3* db;
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db = sqlite3_db_handle(stmt);
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for (;;) {
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rv = sqlite3_step(stmt);
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if (rv!=SQLITE_LOCKED) {
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break;
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}
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if (sqlite3_extended_errcode(db) != SQLITE_LOCKED_SHAREDCACHE) {
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break;
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}
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rv = unlock_notify_wait(db);
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if (rv != SQLITE_OK) {
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break;
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}
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sqlite3_reset(stmt);
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}
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*rowid = (long long) sqlite3_last_insert_rowid(db);
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*changes = (long long) sqlite3_changes(db);
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return rv;
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}
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int
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_sqlite3_prepare_v2_blocking(sqlite3 *db, const char *zSql, int nBytes, sqlite3_stmt **ppStmt, const char **pzTail)
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{
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int rv;
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for (;;) {
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rv = sqlite3_prepare_v2(db, zSql, nBytes, ppStmt, pzTail);
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if (rv!=SQLITE_LOCKED) {
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break;
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}
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if (sqlite3_extended_errcode(db) != SQLITE_LOCKED_SHAREDCACHE) {
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break;
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}
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rv = unlock_notify_wait(db);
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if (rv != SQLITE_OK) {
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break;
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}
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}
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return rv;
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}
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#endif
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