Class: Trilogy

Inherits:
Object
  • Object
show all
Includes:
Synchronization
Defined in:
lib/trilogy.rb,
lib/trilogy/error.rb,
lib/trilogy/result.rb,
lib/trilogy/version.rb,
lib/trilogy/encoding.rb

Defined Under Namespace

Modules: ConnectionError, DatabaseError, Encoding, Error, Synchronization, SyscallError Classes: AuthPluginError, BaseConnectionError, BaseError, CastError, ClientError, ConnectionClosed, EOFError, ProtocolError, QueryError, Result, SSLError, SynchronizationError, TimeoutError

Constant Summary collapse

ConnectionRefusedError = 
SyscallError::ECONNREFUSED
ConnectionResetError = 
SyscallError::ECONNRESET
VERSION = 
"2.12.6"
TLS_VERSION_10 = 
INT2NUM(TRILOGY_TLS_VERSION_10)
TLS_VERSION_11 = 
INT2NUM(TRILOGY_TLS_VERSION_11)
TLS_VERSION_12 = 
INT2NUM(TRILOGY_TLS_VERSION_12)
TLS_VERSION_13 = 
INT2NUM(TRILOGY_TLS_VERSION_13)
SSL_DISABLED = 
INT2NUM(TRILOGY_SSL_DISABLED)
SSL_VERIFY_IDENTITY = 
INT2NUM(TRILOGY_SSL_VERIFY_IDENTITY)
SSL_VERIFY_CA = 
INT2NUM(TRILOGY_SSL_VERIFY_CA)
SSL_REQUIRED_NOVERIFY = 
INT2NUM(TRILOGY_SSL_REQUIRED_NOVERIFY)
SSL_PREFERRED_NOVERIFY = 
INT2NUM(TRILOGY_SSL_PREFERRED_NOVERIFY)
QUERY_FLAGS_NONE = 
INT2NUM(0)
QUERY_FLAGS_CAST = 
INT2NUM(TRILOGY_FLAGS_CAST)
QUERY_FLAGS_CAST_BOOLEANS = 
INT2NUM(TRILOGY_FLAGS_CAST_BOOLEANS)
QUERY_FLAGS_CAST_ALL_DECIMALS_TO_BIGDECIMALS = 
INT2NUM(TRILOGY_FLAGS_CAST_ALL_DECIMALS_TO_BIGDECIMALS)
QUERY_FLAGS_LOCAL_TIMEZONE = 
INT2NUM(TRILOGY_FLAGS_LOCAL_TIMEZONE)
QUERY_FLAGS_FLATTEN_ROWS = 
INT2NUM(TRILOGY_FLAGS_FLATTEN_ROWS)
QUERY_FLAGS_DEFAULT = 
INT2NUM(TRILOGY_FLAGS_DEFAULT)

Instance Method Summary collapse

Constructor Details

#initialize(options = {}) ⇒ Trilogy

Returns a new instance of Trilogy.



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# File 'lib/trilogy.rb', line 43

def initialize(options = {})
  options[:port] = options[:port].to_i if options[:port]
  mysql_encoding = options[:encoding] || "utf8mb4"
  encoding = Trilogy::Encoding.find(mysql_encoding)
  charset = Trilogy::Encoding.charset(mysql_encoding)
  @connection_options = options
  @connected_host = nil

  socket = nil
  begin
    if host = options[:host]
      port = options[:port] || 3306
      connect_timeout = options[:connect_timeout] || options[:write_timeout]

      socket = TCPSocket.new(host, port, connect_timeout: connect_timeout)

      socket.setsockopt(Socket::IPPROTO_TCP, Socket::TCP_NODELAY, 1)

      if keepalive_enabled = options[:keepalive_enabled]
        keepalive_idle = options[:keepalive_idle]
        keepalive_interval = options[:keepalive_interval]
        keepalive_count = options[:keepalive_count]

        socket.setsockopt(Socket::SOL_SOCKET, Socket::SO_KEEPALIVE, true)

        if keepalive_idle > 0 && defined?(Socket::TCP_KEEPIDLE)
          socket.setsockopt(Socket::IPPROTO_TCP, Socket::TCP_KEEPIDLE, keepalive_idle)
        end
        if keepalive_interval > 0 && defined?(Socket::TCP_KEEPINTVL)
          socket.setsockopt(Socket::IPPROTO_TCP, Socket::TCP_KEEPINTVL, keepalive_interval)
        end
        if keepalive_count > 0 && defined?(Socket::TCP_KEEPCNT)
          socket.setsockopt(Socket::IPPROTO_TCP, Socket::TCP_KEEPCNT, keepalive_count)
        end
      end
    else
      path = options[:socket] ||= "/tmp/mysql.sock"
      socket = UNIXSocket.new(path)
    end
  rescue Errno::ETIMEDOUT, IO_TIMEOUT_ERROR => e
    raise Trilogy::TimeoutError, e.message
  rescue SocketError => e
    connection_str = host ? "#{host}:#{port}" : path
    raise Trilogy::BaseConnectionError, "unable to connect to \"#{connection_str}\": #{e.message}"
  rescue => e
    if e.respond_to?(:errno)
      raise Trilogy::SyscallError.from_errno(e.errno, e.message)
    else
      raise
    end
  end

  _connect(socket, encoding, charset, options)
ensure
  # Socket's fd will be dup'd in C
  socket&.close
end

Instance Method Details

#abandon_results! ⇒ Object 



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# File 'ext/trilogy-ruby/cext.c', line 1112

static VALUE rb_trilogy_abandon_results(VALUE self)
{
    struct trilogy_ctx *ctx = get_open_ctx(self);

    long count = 0;
    while (ctx->conn.server_status & TRILOGY_SERVER_STATUS_MORE_RESULTS_EXISTS) {
        count++;
        int rc = trilogy_drain_results(&ctx->conn);
        while (rc == TRILOGY_AGAIN) {
            rc = trilogy_sock_wait_read(ctx->conn.socket);
            if (rc != TRILOGY_OK) {
                handle_trilogy_error(ctx, rc, "trilogy_sock_wait_read");
            }

            rc = trilogy_drain_results(&ctx->conn);
        }

        if (rc != TRILOGY_OK) {
            handle_trilogy_error(ctx, rc, "trilogy_drain_results");
        }
    }

    return LONG2NUM(count);
}

#affected_rows ⇒ Object 



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# File 'ext/trilogy-ruby/cext.c', line 1310

static VALUE rb_trilogy_affected_rows(VALUE self) { return ULL2NUM(get_open_ctx(self)->conn.affected_rows); }

#change_db(database) ⇒ Object Also known as: select_db 



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# File 'ext/trilogy-ruby/cext.c', line 797

static VALUE rb_trilogy_change_db(VALUE self, VALUE database)
{
    struct trilogy_ctx *ctx = get_open_ctx(self);

    StringValue(database);

    rb_trilogy_acquire_buffer(ctx);

    int rc = trilogy_change_db_send(&ctx->conn, RSTRING_PTR(database), RSTRING_LEN(database));

    if (rc == TRILOGY_AGAIN) {
        rc = flush_writes(ctx);
    }

    if (rc != TRILOGY_OK) {
        handle_trilogy_error(ctx, rc, "trilogy_change_db_send");
    }

    while (1) {
        rc = trilogy_change_db_recv(&ctx->conn);

        if (rc == TRILOGY_OK) {
            break;
        }

        if (rc != TRILOGY_AGAIN) {
            handle_trilogy_error(ctx, rc, "trilogy_change_db_recv");
        }

        rc = trilogy_sock_wait_read(ctx->conn.socket);
        if (rc != TRILOGY_OK) {
            handle_trilogy_error(ctx, rc, "trilogy_change_db_recv");
        }
    }

    rb_trilogy_release_buffer(ctx);

    return Qtrue;
}

#check ⇒ Object 



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# File 'ext/trilogy-ruby/cext.c', line 1278

static VALUE rb_trilogy_check(VALUE self)
{
    struct trilogy_ctx *ctx = get_open_ctx(self);

    int rc = trilogy_sock_check(ctx->conn.socket);
    if (rc != TRILOGY_OK && rc != TRILOGY_AGAIN) {
        handle_trilogy_error(ctx, rc, "trilogy_sock_check");
    }
    return Qtrue;
}

#close ⇒ Object 



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# File 'ext/trilogy-ruby/cext.c', line 1225

static VALUE rb_trilogy_close(VALUE self)
{
    struct trilogy_ctx *ctx = get_ctx(self);

    if (ctx->conn.socket == NULL) {
        return Qnil;
    }

    rb_trilogy_acquire_buffer(ctx);

    int rc = trilogy_close_send(&ctx->conn);

    if (rc == TRILOGY_AGAIN) {
        rc = flush_writes(ctx);
    }

    if (rc == TRILOGY_OK) {
        while (1) {
            rc = trilogy_close_recv(&ctx->conn);

            if (rc != TRILOGY_AGAIN) {
                break;
            }

            if (trilogy_sock_wait_read(ctx->conn.socket) < 0) {
                // timed out
                break;
            }
        }
    }

    // We aren't checking or raising errors here (we need close to always close the socket and free the connection), so
    // we must clear any SSL errors left in the queue from a read/write.
    ERR_clear_error();

    rb_trilogy_release_buffer(ctx);

    trilogy_free(&ctx->conn);

    return Qnil;
}

#closed? ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'ext/trilogy-ruby/cext.c', line 1267

static VALUE rb_trilogy_closed(VALUE self)
{
    struct trilogy_ctx *ctx = get_ctx(self);

    if (ctx->conn.socket == NULL) {
        return Qtrue;
    } else {
        return Qfalse;
    }
}

#connected_host ⇒ Object 



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# File 'lib/trilogy.rb', line 119

def connected_host
  @connected_host ||= query_with_flags("select @@hostname", query_flags | QUERY_FLAGS_FLATTEN_ROWS).rows.first
end

#connection_options ⇒ Object 



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# File 'lib/trilogy.rb', line 101

def connection_options
  @connection_options.dup.freeze
end

#discard! ⇒ Object 



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# File 'ext/trilogy-ruby/cext.c', line 1289

static VALUE rb_trilogy_discard(VALUE self)
{
    struct trilogy_ctx *ctx = get_ctx(self);

    if (ctx->conn.socket == NULL) {
        return Qtrue;
    }

    int rc = trilogy_discard(&ctx->conn);
    switch (rc) {
        case TRILOGY_OK:
            return Qtrue;
        case TRILOGY_SYSERR:
            trilogy_syserr_fail_str(errno, rb_str_new_cstr("Failed to discard connection"));
            UNREACHABLE_RETURN(Qfalse);
    }
    return Qfalse;
}

#escape(str) ⇒ Object 



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# File 'ext/trilogy-ruby/cext.c', line 1196

static VALUE rb_trilogy_escape(VALUE self, VALUE str)
{
    struct trilogy_ctx *ctx = get_open_ctx(self);
    rb_encoding *str_enc = rb_enc_get(str);

    StringValue(str);

    if (!rb_enc_asciicompat(str_enc)) {
        rb_raise(rb_eEncCompatError, "input string must be ASCII-compatible");
    }

    const char *escaped_str;
    size_t escaped_len;

    rb_trilogy_acquire_buffer(ctx);

    int rc = trilogy_escape(&ctx->conn, RSTRING_PTR(str), RSTRING_LEN(str), &escaped_str, &escaped_len);

    if (rc < 0) {
        handle_trilogy_error(ctx, rc, "trilogy_escape");
    }

    VALUE escaped_string = rb_enc_str_new(escaped_str, escaped_len, str_enc);

    rb_trilogy_release_buffer(ctx);

    return escaped_string;
}

#in_transaction? ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/trilogy.rb', line 105

def in_transaction?
  (server_status & SERVER_STATUS_IN_TRANS) != 0
end

#last_gtid ⇒ Object 



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# File 'ext/trilogy-ruby/cext.c', line 1314

static VALUE rb_trilogy_last_gtid(VALUE self)
{
    struct trilogy_ctx *ctx = get_open_ctx(self);
    if (ctx->conn.last_gtid_len > 0) {
        return rb_str_new(ctx->conn.last_gtid, ctx->conn.last_gtid_len);
    } else {
        return Qnil;
    }
}

#last_insert_id ⇒ Object 



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# File 'ext/trilogy-ruby/cext.c', line 1308

static VALUE rb_trilogy_last_insert_id(VALUE self) { return ULL2NUM(get_open_ctx(self)->conn.last_insert_id); }

#more_results_exist? ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'ext/trilogy-ruby/cext.c', line 1101

static VALUE rb_trilogy_more_results_exist(VALUE self)
{
    struct trilogy_ctx *ctx = get_open_ctx(self);

    if (ctx->conn.server_status & TRILOGY_SERVER_STATUS_MORE_RESULTS_EXISTS) {
        return Qtrue;
    } else {
        return Qfalse;
    }
}

#next_result ⇒ Object 



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# File 'ext/trilogy-ruby/cext.c', line 1090

static VALUE rb_trilogy_next_result(VALUE self)
{
    struct trilogy_ctx *ctx = get_open_ctx(self);

    if (!(ctx->conn.server_status & TRILOGY_SERVER_STATUS_MORE_RESULTS_EXISTS)) {
        return Qnil;
    }

    return execute_read_query_response(ctx);
}

#ping ⇒ Object 



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# File 'ext/trilogy-ruby/cext.c', line 1159

static VALUE rb_trilogy_ping(VALUE self)
{
    struct trilogy_ctx *ctx = get_open_ctx(self);

    rb_trilogy_acquire_buffer(ctx);

    int rc = trilogy_ping_send(&ctx->conn);

    if (rc == TRILOGY_AGAIN) {
        rc = flush_writes(ctx);
    }

    if (rc < 0) {
        handle_trilogy_error(ctx, rc, "trilogy_ping_send");
    }

    while (1) {
        rc = trilogy_ping_recv(&ctx->conn);

        if (rc == TRILOGY_OK) {
            break;
        }

        if (rc != TRILOGY_AGAIN) {
            handle_trilogy_error(ctx, rc, "trilogy_ping_recv");
        }

        rc = trilogy_sock_wait_read(ctx->conn.socket);
        if (rc != TRILOGY_OK) {
            handle_trilogy_error(ctx, rc, "trilogy_ping_recv");
        }
    }

    rb_trilogy_release_buffer(ctx);
    return Qtrue;
}

#query(query) ⇒ Object 



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# File 'ext/trilogy-ruby/cext.c', line 1137

static VALUE rb_trilogy_query(VALUE self, VALUE query)
{
    struct trilogy_ctx *ctx = get_open_ctx(self);

    StringValue(query);
    query = rb_str_export_to_enc(query, ctx->encoding);

    rb_trilogy_acquire_buffer(ctx);

    int rc = trilogy_query_send(&ctx->conn, RSTRING_PTR(query), RSTRING_LEN(query));

    if (rc == TRILOGY_AGAIN) {
        rc = flush_writes(ctx);
    }

    if (rc < 0) {
        handle_trilogy_error(ctx, rc, "trilogy_query_send");
    }

    return execute_read_query_response(ctx);
}

#query_flags ⇒ Object 



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# File 'ext/trilogy-ruby/cext.c', line 1324

static VALUE rb_trilogy_query_flags(VALUE self) { return UINT2NUM(get_ctx(self)->query_flags); }

#query_flags=(query_flags) ⇒ Object 



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# File 'ext/trilogy-ruby/cext.c', line 1326

static VALUE rb_trilogy_query_flags_set(VALUE self, VALUE query_flags)
{
    return get_ctx(self)->query_flags = NUM2UINT(query_flags);
}

#query_with_flags(sql, flags) ⇒ Object 



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# File 'lib/trilogy.rb', line 123

def query_with_flags(sql, flags)
  old_flags = query_flags
  self.query_flags = flags

  query(sql)
ensure
  self.query_flags = old_flags
end

#read_timeout ⇒ Object 



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# File 'ext/trilogy-ruby/cext.c', line 1331

static VALUE rb_trilogy_read_timeout(VALUE self) {
    struct trilogy_ctx *ctx = get_open_ctx(self);
    return DBL2NUM(timeval_to_double(ctx->conn.socket->opts.read_timeout));
}

#read_timeout=(read_timeout) ⇒ Object 



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# File 'ext/trilogy-ruby/cext.c', line 1336

static VALUE rb_trilogy_read_timeout_set(VALUE self, VALUE read_timeout)
{
    struct trilogy_ctx *ctx = get_open_ctx(self);
    if (read_timeout == Qnil) {
        ctx->conn.socket->opts.read_timeout = double_to_timeval(0.0);
    } else {
        ctx->conn.socket->opts.read_timeout = double_to_timeval(NUM2DBL(read_timeout));
    }
    return read_timeout;
}

#server_info ⇒ Object 



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# File 'lib/trilogy.rb', line 109

def server_info
  version_str = server_version

  if /\A(\d+)\.(\d+)\.(\d+)/ =~ version_str
    version_num = ($1.to_i * 10000) + ($2.to_i * 100) + $3.to_i
  end

  { :version => version_str, :id => version_num }
end

#server_status ⇒ Object 



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# File 'ext/trilogy-ruby/cext.c', line 1363

static VALUE rb_trilogy_server_status(VALUE self) { return LONG2FIX(get_open_ctx(self)->conn.server_status); }

#server_version ⇒ Object 



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# File 'ext/trilogy-ruby/cext.c', line 1365

static VALUE rb_trilogy_server_version(VALUE self) { return rb_str_new_cstr(get_open_ctx(self)->server_version); }

#set_server_option(option) ⇒ Object 



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# File 'ext/trilogy-ruby/cext.c', line 837

static VALUE rb_trilogy_set_server_option(VALUE self, VALUE option)
{
    struct trilogy_ctx *ctx = get_open_ctx(self);

    rb_trilogy_acquire_buffer(ctx);

    int rc = trilogy_set_option_send(&ctx->conn, NUM2INT(option));

    if (rc == TRILOGY_AGAIN) {
        rc = flush_writes(ctx);
    }

    if (rc != TRILOGY_OK) {
        handle_trilogy_error(ctx, rc, "trilogy_set_option_send");
    }

    while (1) {
        rc = trilogy_set_option_recv(&ctx->conn);

        if (rc == TRILOGY_OK) {
            break;
        }

        if (rc != TRILOGY_AGAIN) {
            handle_trilogy_error(ctx, rc, "trilogy_set_option_recv");
        }

        rc = trilogy_sock_wait_read(ctx->conn.socket);
        if (rc != TRILOGY_OK) {
            handle_trilogy_error(ctx, rc, "trilogy_set_option_recv");
        }
    }

    rb_trilogy_release_buffer(ctx);

    return Qtrue;
}

#warning_count ⇒ Object 



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# File 'ext/trilogy-ruby/cext.c', line 1312

static VALUE rb_trilogy_warning_count(VALUE self) { return UINT2NUM(get_open_ctx(self)->conn.warning_count); }

#write_timeout ⇒ Object 



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# File 'ext/trilogy-ruby/cext.c', line 1347

static VALUE rb_trilogy_write_timeout(VALUE self) {
    struct trilogy_ctx *ctx = get_open_ctx(self);
    return DBL2NUM(timeval_to_double(ctx->conn.socket->opts.write_timeout));
}

#write_timeout=(write_timeout) ⇒ Object 



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# File 'ext/trilogy-ruby/cext.c', line 1352

static VALUE rb_trilogy_write_timeout_set(VALUE self, VALUE write_timeout)
{
    struct trilogy_ctx *ctx = get_open_ctx(self);
    if (write_timeout == Qnil) {
        ctx->conn.socket->opts.write_timeout = double_to_timeval(0.0);
    } else {
        ctx->conn.socket->opts.write_timeout = double_to_timeval(NUM2DBL(write_timeout));
    }
    return write_timeout;
}