diff options
| -rw-r--r-- | build.zig | 8 | ||||
| -rw-r--r-- | build.zig.zon | 1 | ||||
| -rw-r--r-- | src/db/root.zig | 7 | ||||
| -rw-r--r-- | src/db/sqlite.h | 1 | ||||
| -rw-r--r-- | src/db/sqlite.zig | 221 |
5 files changed, 235 insertions, 3 deletions
@@ -4,10 +4,18 @@ pub fn build(b: *std.Build) void { const target = b.standardTargetOptions(.{}); const optimize = b.standardOptimizeOption(.{}); + const sqlite_c = b.addTranslateC(.{ + .root_source_file = b.path("src/db/sqlite.h"), + .target = target, + .optimize = optimize, + }); + sqlite_c.linkSystemLibrary("sqlite3", .{}); + const db_mod = b.addModule("db", .{ .root_source_file = b.path("src/db/root.zig"), .target = target, }); + db_mod.addImport("sqlite", sqlite_c.createModule()); const api_mod = b.addModule("api", .{ .root_source_file = b.path("src/api/root.zig"), diff --git a/build.zig.zon b/build.zig.zon index 69dae0f..afb2159 100644 --- a/build.zig.zon +++ b/build.zig.zon @@ -1,6 +1,7 @@ .{ .name = .memora, .version = "0.0.0", + .fingerprint = 0xf901ac636a172b52, .minimum_zig_version = "0.16.0", .fingerprint = 0xf901ac6387a8536b, .dependencies = .{ diff --git a/src/db/root.zig b/src/db/root.zig index 049a63b..4ca9847 100644 --- a/src/db/root.zig +++ b/src/db/root.zig @@ -1,9 +1,10 @@ -//! Implements the layer between the sqlite -//! database and the interface for the api endpoints or -//! the cli. +//! Implements the layer between the sqlite database and the interface for the +//! API endpoints or the CLI. const std = @import("std"); +pub const sqlite = @import("sqlite.zig"); + test { _ = std.testing.refAllDecls(@This()); } diff --git a/src/db/sqlite.h b/src/db/sqlite.h new file mode 100644 index 0000000..f52e1f0 --- /dev/null +++ b/src/db/sqlite.h @@ -0,0 +1 @@ +#include <sqlite3.h> diff --git a/src/db/sqlite.zig b/src/db/sqlite.zig new file mode 100644 index 0000000..1e45537 --- /dev/null +++ b/src/db/sqlite.zig @@ -0,0 +1,221 @@ +const std = @import("std"); +const sqlite = @import("sqlite"); + +pub const Database = struct { + handle: *sqlite.sqlite3, + + pub const Error = set: { + var set: type = error{}; + + for (std.meta.fieldNames(Result.Primary)) |name| { + set = set || @TypeOf(@field(anyerror, name)); + } + for (std.meta.fieldNames(Result.Extended)) |name| { + set = set || @TypeOf(@field(anyerror, name)); + } + + break :set set; + }; + + pub const Kind = union(enum) { + temp_in_memory, + temp_on_disk, + path: []const u8, + }; + + // Source: https://sqlite.org/c3ref/open.html + pub fn init(kind: Kind) Error!Database { + const name = switch (kind) { + .temp_in_memory => ":memory:", + .temp_on_disk => "", + .path => |path| path, + }; + var handle: ?*sqlite.sqlite3 = null; + + const result: Result = .from(sqlite.sqlite3_open(name.ptr, &handle)); + + switch (result.primary()) { + .ok => {}, + inline else => |code| return @field(anyerror, @tagName(code)), + } + + return .{ .handle = handle.? }; + } +}; + +// Source: https://sqlite.org/rescode.html +pub const Result = enum(i32) { + _, + + // zig fmt: off + pub const Primary = enum(u8) { + /// Successful result. + ok = 0, + /// Generic error. + @"error" = 1, + /// Internal logic error in SQLite. + internal = 2, + /// Access permission denied. + perm = 3, + /// Callback routine requested an abort. + abort = 4, + /// The database file is locked. + busy = 5, + /// A table in the database is locked. + locked = 6, + /// A malloc() failed. + nomem = 7, + /// Attempt to write a readonly database. + readonly = 8, + /// Operation terminated by sqlite3_interrupt(). + interrupt = 9, + /// Some kind of disk I/O error occurred. + ioerr = 10, + /// The database disk image is malformed. + corrupt = 11, + /// Unknown opcode in sqlite3_file_control(). + notfound = 12, + /// Insertion failed because database is full. + full = 13, + /// Unable to open the database file. + cantopen = 14, + /// Database lock protocol error. + protocol = 15, + /// Internal use only. + empty = 16, + /// The database schema changed. + schema = 17, + /// String or BLOB exceeds size limit. + toobig = 18, + /// Abort due to constraint violation. + constraint = 19, + /// Data type mismatch. + mismatch = 20, + /// Library used incorrectly. + misuse = 21, + /// Uses OS features not supported on host. + nolfs = 22, + /// Authorization denied. + auth = 23, + /// Not used. + format = 24, + /// 2nd parameter to sqlite3_bind out of range. + range = 25, + /// File opened that is not a database file. + notadb = 26, + /// Notifications from sqlite3_log(). + notice = 27, + /// Warnings from sqlite3_log(). + warning = 28, + /// sqlite3_step() has another row ready. + row = 100, + /// sqlite3_step() has finished executing. + done = 101, + + fn as(self: Primary, comptime T: type) T { + return @as(T, @intFromEnum(self)); + } + }; + + // zig fmt: off + pub const Extended = enum(i32) { + error_missing_collseq = (Primary.@"error".as(i32) | ( 1 << 8)), + error_retry = (Primary.@"error".as(i32) | ( 2 << 8)), + error_snapshot = (Primary.@"error".as(i32) | ( 3 << 8)), + error_reservesize = (Primary.@"error".as(i32) | ( 4 << 8)), + error_key = (Primary.@"error".as(i32) | ( 5 << 8)), + error_unable = (Primary.@"error".as(i32) | ( 6 << 8)), + ioerr_read = (Primary.ioerr.as(i32) | ( 1 << 8)), + ioerr_short_read = (Primary.ioerr.as(i32) | ( 2 << 8)), + ioerr_write = (Primary.ioerr.as(i32) | ( 3 << 8)), + ioerr_fsync = (Primary.ioerr.as(i32) | ( 4 << 8)), + ioerr_dir_fsync = (Primary.ioerr.as(i32) | ( 5 << 8)), + ioerr_truncate = (Primary.ioerr.as(i32) | ( 6 << 8)), + ioerr_fstat = (Primary.ioerr.as(i32) | ( 7 << 8)), + ioerr_unlock = (Primary.ioerr.as(i32) | ( 8 << 8)), + ioerr_rdlock = (Primary.ioerr.as(i32) | ( 9 << 8)), + ioerr_delete = (Primary.ioerr.as(i32) | (10 << 8)), + ioerr_blocked = (Primary.ioerr.as(i32) | (11 << 8)), + ioerr_nomem = (Primary.ioerr.as(i32) | (12 << 8)), + ioerr_access = (Primary.ioerr.as(i32) | (13 << 8)), + ioerr_checkreservedlock = (Primary.ioerr.as(i32) | (14 << 8)), + ioerr_lock = (Primary.ioerr.as(i32) | (15 << 8)), + ioerr_close = (Primary.ioerr.as(i32) | (16 << 8)), + ioerr_dir_close = (Primary.ioerr.as(i32) | (17 << 8)), + ioerr_shmopen = (Primary.ioerr.as(i32) | (18 << 8)), + ioerr_shmsize = (Primary.ioerr.as(i32) | (19 << 8)), + ioerr_shmlock = (Primary.ioerr.as(i32) | (20 << 8)), + ioerr_shmmap = (Primary.ioerr.as(i32) | (21 << 8)), + ioerr_seek = (Primary.ioerr.as(i32) | (22 << 8)), + ioerr_delete_noent = (Primary.ioerr.as(i32) | (23 << 8)), + ioerr_mmap = (Primary.ioerr.as(i32) | (24 << 8)), + ioerr_gettemppath = (Primary.ioerr.as(i32) | (25 << 8)), + ioerr_convpath = (Primary.ioerr.as(i32) | (26 << 8)), + ioerr_vnode = (Primary.ioerr.as(i32) | (27 << 8)), + ioerr_auth = (Primary.ioerr.as(i32) | (28 << 8)), + ioerr_begin_atomic = (Primary.ioerr.as(i32) | (29 << 8)), + ioerr_commit_atomic = (Primary.ioerr.as(i32) | (30 << 8)), + ioerr_rollback_atomic = (Primary.ioerr.as(i32) | (31 << 8)), + ioerr_data = (Primary.ioerr.as(i32) | (32 << 8)), + ioerr_corruptfs = (Primary.ioerr.as(i32) | (33 << 8)), + ioerr_in_page = (Primary.ioerr.as(i32) | (34 << 8)), + ioerr_badkey = (Primary.ioerr.as(i32) | (35 << 8)), + ioerr_codec = (Primary.ioerr.as(i32) | (36 << 8)), + locked_sharedcache = (Primary.locked.as(i32) | ( 1 << 8)), + locked_vtab = (Primary.locked.as(i32) | ( 2 << 8)), + busy_recovery = (Primary.busy.as(i32) | ( 1 << 8)), + busy_snapshot = (Primary.busy.as(i32) | ( 2 << 8)), + busy_timeout = (Primary.busy.as(i32) | ( 3 << 8)), + cantopen_notempdir = (Primary.cantopen.as(i32) | ( 1 << 8)), + cantopen_isdir = (Primary.cantopen.as(i32) | ( 2 << 8)), + cantopen_fullpath = (Primary.cantopen.as(i32) | ( 3 << 8)), + cantopen_convpath = (Primary.cantopen.as(i32) | ( 4 << 8)), + cantopen_symlink = (Primary.cantopen.as(i32) | ( 6 << 8)), + corrupt_vtab = (Primary.corrupt.as(i32) | ( 1 << 8)), + corrupt_sequence = (Primary.corrupt.as(i32) | ( 2 << 8)), + corrupt_index = (Primary.corrupt.as(i32) | ( 3 << 8)), + readonly_recovery = (Primary.readonly.as(i32) | ( 1 << 8)), + readonly_cantlock = (Primary.readonly.as(i32) | ( 2 << 8)), + readonly_rollback = (Primary.readonly.as(i32) | ( 3 << 8)), + readonly_dbmoved = (Primary.readonly.as(i32) | ( 4 << 8)), + readonly_cantinit = (Primary.readonly.as(i32) | ( 5 << 8)), + readonly_directory = (Primary.readonly.as(i32) | ( 6 << 8)), + abort_rollback = (Primary.abort.as(i32) | ( 2 << 8)), + constraint_check = (Primary.constraint.as(i32) | ( 1 << 8)), + constraint_commithook = (Primary.constraint.as(i32) | ( 2 << 8)), + constraint_foreignkey = (Primary.constraint.as(i32) | ( 3 << 8)), + constraint_function = (Primary.constraint.as(i32) | ( 4 << 8)), + constraint_notnull = (Primary.constraint.as(i32) | ( 5 << 8)), + constraint_primarykey = (Primary.constraint.as(i32) | ( 6 << 8)), + constraint_trigger = (Primary.constraint.as(i32) | ( 7 << 8)), + constraint_unique = (Primary.constraint.as(i32) | ( 8 << 8)), + constraint_vtab = (Primary.constraint.as(i32) | ( 9 << 8)), + constraint_rowid = (Primary.constraint.as(i32) | (10 << 8)), + constraint_pinned = (Primary.constraint.as(i32) | (11 << 8)), + constraint_datatype = (Primary.constraint.as(i32) | (12 << 8)), + notice_recover_wal = (Primary.notice.as(i32) | ( 1 << 8)), + notice_recover_rollback = (Primary.notice.as(i32) | ( 2 << 8)), + notice_rbu = (Primary.notice.as(i32) | ( 3 << 8)), + warning_autoindex = (Primary.warning.as(i32) | ( 1 << 8)), + auth_user = (Primary.auth.as(i32) | ( 1 << 8)), + ok_load_permanently = (Primary.ok.as(i32) | ( 1 << 8)), + }; + + pub fn from(value: anytype) Result { + return @enumFromInt(value); + } + + pub fn primary(self: Result) Primary { + return @enumFromInt(0x000000FF & @intFromEnum(self)); + } + + pub fn extended(self: Result) Extended { + return @enumFromInt(@intFromEnum(self)); + } +}; + +test { + const db: Database = try .init(.temp_in_memory); + + _ = db; +} |