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Begin setting up chat history database
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,98 @@ | ||
| // -*- mode:c++;indent-tabs-mode:nil;c-basic-offset:4;coding:utf-8 -*- | ||
| // vi: set et ft=cpp ts=4 sts=4 sw=4 fenc=utf-8 :vi | ||
| // | ||
| // Copyright 2024 Mozilla Foundation | ||
| // | ||
| // Licensed under the Apache License, Version 2.0 (the "License"); | ||
| // you may not use this file except in compliance with the License. | ||
| // You may obtain a copy of the License at | ||
| // | ||
| // http://www.apache.org/licenses/LICENSE-2.0 | ||
| // | ||
| // Unless required by applicable law or agreed to in writing, software | ||
| // distributed under the License is distributed on an "AS IS" BASIS, | ||
| // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. | ||
| // See the License for the specific language governing permissions and | ||
| // limitations under the License. | ||
|
|
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| #include "db.h" | ||
| #include <stdio.h> | ||
| #include <string> | ||
|
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| __static_yoink("llamafile/schema.sql"); | ||
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| #define SCHEMA_VERSION 1 | ||
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| namespace llamafile { | ||
| namespace db { | ||
|
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| static bool table_exists(sqlite3* db, const char* table_name) { | ||
| const char* query = "SELECT name FROM sqlite_master WHERE type='table' AND name=?;"; | ||
| sqlite3_stmt* stmt; | ||
| if (sqlite3_prepare_v2(db, query, -1, &stmt, nullptr) != SQLITE_OK) { | ||
| return false; | ||
| } | ||
| if (sqlite3_bind_text(stmt, 1, table_name, -1, SQLITE_STATIC) != SQLITE_OK) { | ||
| sqlite3_finalize(stmt); | ||
| return false; | ||
| } | ||
| bool exists = sqlite3_step(stmt) == SQLITE_ROW; | ||
| sqlite3_finalize(stmt); | ||
| return exists; | ||
| } | ||
|
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| static bool init_schema(sqlite3* db) { | ||
| FILE* f = fopen("/zip/llamafile/schema.sql", "r"); | ||
| if (!f) | ||
| return false; | ||
| std::string schema; | ||
| int c; | ||
| while ((c = fgetc(f)) != EOF) | ||
| schema += c; | ||
| fclose(f); | ||
| char* errmsg = nullptr; | ||
| int rc = sqlite3_exec(db, schema.c_str(), nullptr, nullptr, &errmsg); | ||
| if (rc != SQLITE_OK) { | ||
| if (errmsg) { | ||
| fprintf(stderr, "SQL error: %s\n", errmsg); | ||
| sqlite3_free(errmsg); | ||
| } | ||
| return false; | ||
| } | ||
| return true; | ||
| } | ||
|
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| sqlite3* open(const char* path) { | ||
| sqlite3* db; | ||
| int rc = sqlite3_open(path, &db); | ||
| if (rc) { | ||
| fprintf(stderr, "%s: can't open database: %s\n", path, sqlite3_errmsg(db)); | ||
| return nullptr; | ||
| } | ||
| char* errmsg = nullptr; | ||
| if (sqlite3_exec(db, "PRAGMA journal_mode=WAL;", nullptr, nullptr, &errmsg) != SQLITE_OK) { | ||
| fprintf(stderr, "Failed to set journal mode to WAL: %s\n", errmsg); | ||
| sqlite3_free(errmsg); | ||
| sqlite3_close(db); | ||
| return nullptr; | ||
| } | ||
| if (sqlite3_exec(db, "PRAGMA synchronous=NORMAL;", nullptr, nullptr, &errmsg) != SQLITE_OK) { | ||
| fprintf(stderr, "Failed to set synchronous to NORMAL: %s\n", errmsg); | ||
| sqlite3_free(errmsg); | ||
| sqlite3_close(db); | ||
| return nullptr; | ||
| } | ||
| if (!table_exists(db, "metadata") && !init_schema(db)) { | ||
| fprintf(stderr, "%s: failed to initialize database schema\n", path); | ||
| sqlite3_close(db); | ||
| return nullptr; | ||
| } | ||
| return db; | ||
| } | ||
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| void close(sqlite3* db) { | ||
| sqlite3_close(db); | ||
| } | ||
|
|
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| } // namespace db | ||
| } // namespace llamafile |
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,28 @@ | ||
| // -*- mode:c++;indent-tabs-mode:nil;c-basic-offset:4;coding:utf-8 -*- | ||
| // vi: set et ft=cpp ts=4 sts=4 sw=4 fenc=utf-8 :vi | ||
| // | ||
| // Copyright 2024 Mozilla Foundation | ||
| // | ||
| // Licensed under the Apache License, Version 2.0 (the "License"); | ||
| // you may not use this file except in compliance with the License. | ||
| // You may obtain a copy of the License at | ||
| // | ||
| // http://www.apache.org/licenses/LICENSE-2.0 | ||
| // | ||
| // Unless required by applicable law or agreed to in writing, software | ||
| // distributed under the License is distributed on an "AS IS" BASIS, | ||
| // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. | ||
| // See the License for the specific language governing permissions and | ||
| // limitations under the License. | ||
|
|
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| #pragma once | ||
| #include "third_party/sqlite/sqlite3.h" | ||
|
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| namespace llamafile { | ||
| namespace db { | ||
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| sqlite3* open(const char*); | ||
| void close(sqlite3*); | ||
|
|
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| } // namespace db | ||
| } // namespace llamafile |
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,24 @@ | ||
| CREATE TABLE metadata ( | ||
| key TEXT PRIMARY KEY, | ||
| value TEXT | ||
| ); | ||
|
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| CREATE TABLE chats ( | ||
| id INTEGER PRIMARY KEY AUTOINCREMENT, | ||
| created_at TIMESTAMP DEFAULT CURRENT_TIMESTAMP, | ||
| model TEXT, | ||
| title TEXT | ||
| ); | ||
|
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| CREATE TABLE messages ( | ||
| id INTEGER PRIMARY KEY AUTOINCREMENT, | ||
| created_at TIMESTAMP DEFAULT CURRENT_TIMESTAMP, | ||
| chat_id INTEGER, | ||
| role TEXT, | ||
| message TEXT, | ||
| temperature REAL, | ||
| top_p REAL, | ||
| presence_penalty REAL, | ||
| frequency_penalty REAL, | ||
| FOREIGN KEY (chat_id) REFERENCES chats(id) | ||
| ); |
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