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5b9dd10cbe
Use "pragma max_page_count" to define max allowed file size in combination with "pragma page_size" based on a new setting "max navmeshdb file size". * Stop navmeshtool on the first db error. * Disable writes to db in the engine on first "database or disk is full" SQLite3 error. There is no special error code for this error. * Change default "write to navmeshdb" to true. * Use time intervals for transaction duration instead of number of changes.
34 lines
1.3 KiB
C++
34 lines
1.3 KiB
C++
#include "db.hpp"
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#include <sqlite3.h>
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#include <stdexcept>
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#include <string>
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#include <string_view>
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namespace Sqlite3
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{
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void CloseSqlite3::operator()(sqlite3* handle) const noexcept
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{
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sqlite3_close_v2(handle);
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}
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Db makeDb(std::string_view path, const char* schema)
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{
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sqlite3* handle = nullptr;
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// All uses of NavMeshDb are protected by a mutex (navmeshtool) or serialized in a single thread (DbWorker)
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// so additional synchronization between threads is not required and SQLITE_OPEN_NOMUTEX can be used.
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// This is unsafe to use NavMeshDb without external synchronization because of internal state.
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const int flags = SQLITE_OPEN_READWRITE | SQLITE_OPEN_CREATE | SQLITE_OPEN_NOMUTEX;
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if (const int ec = sqlite3_open_v2(std::string(path).c_str(), &handle, flags, nullptr); ec != SQLITE_OK)
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{
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const std::string message(sqlite3_errmsg(handle));
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sqlite3_close(handle);
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throw std::runtime_error("Failed to open database: " + message);
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}
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Db result(handle);
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if (const int ec = sqlite3_exec(result.get(), schema, nullptr, nullptr, nullptr); ec != SQLITE_OK)
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throw std::runtime_error("Failed create database schema: " + std::string(sqlite3_errmsg(handle)));
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return result;
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}
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}
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