mirror of
https://gitlab.freedesktop.org/wayland/wayland.git
synced 2025-10-31 22:25:25 -04:00
53d24713a3
The update callback for the file descriptors was always a bit awkward and un-intuitive. The idea was that whenever the protocol code needed to write data to the fd it would call the 'update' function. This function would adjust the mainloop so that it polls for POLLOUT on the fd so we can eventually flush the data to the socket. The problem is that in multi-threaded applications, any thread can issue a request, which writes data to the output buffer and thus triggers the update callback. Thus, we'll be calling out with the display mutex held and may call from any thread. The solution is to eliminate the udpate callback and just require that the application or server flushes all connection buffers before blocking. This turns out to be a simpler API, although we now require clients to deal with EAGAIN and non-blocking writes. It also saves a few syscalls, since the socket will be writable most of the time and most writes will complete, so we avoid changing epoll to poll for POLLOUT, then write and then change it back for each write.
526 lines
13 KiB
C
526 lines
13 KiB
C
/*
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* Copyright © 2012 Intel Corporation
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*
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* Permission to use, copy, modify, distribute, and sell this software and its
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* documentation for any purpose is hereby granted without fee, provided that
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* the above copyright notice appear in all copies and that both that copyright
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* notice and this permission notice appear in supporting documentation, and
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* that the name of the copyright holders not be used in advertising or
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* publicity pertaining to distribution of the software without specific,
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* written prior permission. The copyright holders make no representations
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* about the suitability of this software for any purpose. It is provided "as
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* is" without express or implied warranty.
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*
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* THE COPYRIGHT HOLDERS DISCLAIM ALL WARRANTIES WITH REGARD TO THIS SOFTWARE,
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* INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO
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* EVENT SHALL THE COPYRIGHT HOLDERS BE LIABLE FOR ANY SPECIAL, INDIRECT OR
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* CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE,
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* DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER
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* TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE
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* OF THIS SOFTWARE.
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*/
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#include <math.h>
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#include <stdio.h>
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#include <stdlib.h>
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#include <stdarg.h>
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#include <string.h>
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#include <assert.h>
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#include <sys/socket.h>
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#include <unistd.h>
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#include <errno.h>
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#include <sys/types.h>
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#include <sys/stat.h>
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#include "wayland-private.h"
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#include "test-runner.h"
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static const char message[] = "Hello, world";
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static struct wl_connection *
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setup(int *s)
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{
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struct wl_connection *connection;
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assert(socketpair(AF_UNIX, SOCK_STREAM | SOCK_CLOEXEC, 0, s) == 0);
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connection = wl_connection_create(s[0]);
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assert(connection);
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return connection;
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}
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TEST(connection_create)
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{
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struct wl_connection *connection;
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int s[2];
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connection = setup(s);
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wl_connection_destroy(connection);
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close(s[1]);
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}
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TEST(connection_write)
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{
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struct wl_connection *connection;
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int s[2];
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char buffer[64];
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connection = setup(s);
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assert(wl_connection_write(connection, message, sizeof message) == 0);
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assert(wl_connection_flush(connection) == sizeof message);
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assert(read(s[1], buffer, sizeof buffer) == sizeof message);
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assert(memcmp(message, buffer, sizeof message) == 0);
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wl_connection_destroy(connection);
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close(s[1]);
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}
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TEST(connection_data)
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{
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struct wl_connection *connection;
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int s[2];
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char buffer[64];
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connection = setup(s);
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assert(write(s[1], message, sizeof message) == sizeof message);
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assert(wl_connection_read(connection) == sizeof message);
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wl_connection_copy(connection, buffer, sizeof message);
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assert(memcmp(message, buffer, sizeof message) == 0);
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wl_connection_consume(connection, sizeof message);
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wl_connection_destroy(connection);
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close(s[1]);
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}
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TEST(connection_queue)
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{
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struct wl_connection *connection;
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int s[2];
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char buffer[64];
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connection = setup(s);
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/* Test that wl_connection_queue() puts data in the output
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* buffer without flush it. Verify that the data did get in
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* the buffer by writing another message and making sure that
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* we receive the two messages on the other fd. */
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assert(wl_connection_queue(connection, message, sizeof message) == 0);
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assert(wl_connection_flush(connection) == 0);
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assert(wl_connection_write(connection, message, sizeof message) == 0);
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assert(wl_connection_flush(connection) == 2 * sizeof message);
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assert(read(s[1], buffer, sizeof buffer) == 2 * sizeof message);
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assert(memcmp(message, buffer, sizeof message) == 0);
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assert(memcmp(message, buffer + sizeof message, sizeof message) == 0);
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wl_connection_destroy(connection);
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close(s[1]);
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}
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struct marshal_data {
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struct wl_connection *read_connection;
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struct wl_connection *write_connection;
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int s[2];
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uint32_t buffer[10];
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union {
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uint32_t u;
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int32_t i;
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const char *s;
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int h;
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} value;
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};
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static void
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setup_marshal_data(struct marshal_data *data)
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{
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assert(socketpair(AF_UNIX,
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SOCK_STREAM | SOCK_CLOEXEC, 0, data->s) == 0);
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data->read_connection = wl_connection_create(data->s[0]);
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assert(data->read_connection);
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data->write_connection = wl_connection_create(data->s[1]);
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assert(data->write_connection);
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}
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static void
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release_marshal_data(struct marshal_data *data)
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{
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wl_connection_destroy(data->read_connection);
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wl_connection_destroy(data->write_connection);
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}
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static void
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marshal(struct marshal_data *data, const char *format, int size, ...)
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{
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struct wl_closure *closure;
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static const uint32_t opcode = 4444;
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static struct wl_object sender = { NULL, NULL, 1234 };
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struct wl_message message = { "test", format, NULL };
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va_list ap;
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va_start(ap, size);
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closure = wl_closure_vmarshal(&sender, opcode, ap, &message);
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va_end(ap);
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assert(closure);
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assert(wl_closure_send(closure, data->write_connection) == 0);
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wl_closure_destroy(closure);
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assert(wl_connection_flush(data->write_connection) == size);
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assert(read(data->s[0], data->buffer, sizeof data->buffer) == size);
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assert(data->buffer[0] == sender.id);
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assert(data->buffer[1] == (opcode | (size << 16)));
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}
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TEST(connection_marshal)
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{
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struct marshal_data data;
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struct wl_object object;
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struct wl_array array;
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static const char text[] = "curry";
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setup_marshal_data(&data);
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marshal(&data, "i", 12, 42);
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assert(data.buffer[2] == 42);
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marshal(&data, "u", 12, 55);
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assert(data.buffer[2] == 55);
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marshal(&data, "s", 20, "frappo");
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assert(data.buffer[2] == 7);
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assert(strcmp((char *) &data.buffer[3], "frappo") == 0);
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object.id = 557799;
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marshal(&data, "o", 12, &object);
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assert(data.buffer[2] == object.id);
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marshal(&data, "n", 12, &object);
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assert(data.buffer[2] == object.id);
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marshal(&data, "?n", 12, NULL);
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assert(data.buffer[2] == 0);
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array.data = (void *) text;
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array.size = sizeof text;
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marshal(&data, "a", 20, &array);
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assert(data.buffer[2] == array.size);
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assert(memcmp(&data.buffer[3], text, array.size) == 0);
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release_marshal_data(&data);
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}
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static void
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expected_fail_marshal(int expected_error, const char *format, ...)
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{
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struct wl_closure *closure;
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static const uint32_t opcode = 4444;
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static const struct wl_interface test_interface = {
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.name = "test_object"
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};
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static struct wl_object sender = { 0 };
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struct wl_message message = { "test", format, NULL };
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sender.interface = &test_interface;
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sender.id = 1234;
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va_list ap;
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va_start(ap, format);
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closure = wl_closure_vmarshal(&sender, opcode, ap, &message);
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va_end(ap);
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assert(closure == NULL);
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assert(errno == expected_error);
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}
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TEST(connection_marshal_nullables)
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{
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struct marshal_data data;
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struct wl_object object;
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struct wl_array array;
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const char text[] = "curry";
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setup_marshal_data(&data);
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expected_fail_marshal(EINVAL, "o", NULL);
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expected_fail_marshal(EINVAL, "s", NULL);
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expected_fail_marshal(EINVAL, "a", NULL);
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marshal(&data, "?o", 12, NULL);
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assert(data.buffer[2] == 0);
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marshal(&data, "?a", 12, NULL);
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assert(data.buffer[2] == 0);
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marshal(&data, "?s", 12, NULL);
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assert(data.buffer[2] == 0);
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object.id = 55293;
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marshal(&data, "?o", 12, &object);
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assert(data.buffer[2] == object.id);
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array.data = (void *) text;
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array.size = sizeof text;
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marshal(&data, "?a", 20, &array);
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assert(data.buffer[2] == array.size);
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assert(memcmp(&data.buffer[3], text, array.size) == 0);
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marshal(&data, "?s", 20, text);
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assert(data.buffer[2] == sizeof text);
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assert(strcmp((char *) &data.buffer[3], text) == 0);
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release_marshal_data(&data);
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}
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static void
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validate_demarshal_u(struct marshal_data *data,
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struct wl_object *object, uint32_t u)
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{
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assert(data->value.u == u);
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}
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static void
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validate_demarshal_i(struct marshal_data *data,
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struct wl_object *object, int32_t i)
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{
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assert(data->value.i == i);
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}
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static void
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validate_demarshal_s(struct marshal_data *data,
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struct wl_object *object, const char *s)
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{
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if (data->value.s != NULL)
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assert(strcmp(data->value.s, s) == 0);
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else
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assert(s == NULL);
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}
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static void
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validate_demarshal_h(struct marshal_data *data,
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struct wl_object *object, int fd)
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{
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struct stat buf1, buf2;
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assert(fd != data->value.h);
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fstat(fd, &buf1);
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fstat(data->value.h, &buf2);
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assert(buf1.st_dev == buf2.st_dev);
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assert(buf1.st_ino == buf2.st_ino);
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close(fd);
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close(data->value.h);
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}
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static void
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validate_demarshal_f(struct marshal_data *data,
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struct wl_object *object, wl_fixed_t f)
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{
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assert(data->value.i == f);
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}
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static void
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demarshal(struct marshal_data *data, const char *format,
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uint32_t *msg, void (*func)(void))
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{
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struct wl_message message = { "test", format, NULL };
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struct wl_closure *closure;
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struct wl_map objects;
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struct wl_object object;
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int size = msg[1];
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assert(write(data->s[1], msg, size) == size);
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assert(wl_connection_read(data->read_connection) == size);
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wl_map_init(&objects);
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object.id = msg[0];
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closure = wl_connection_demarshal(data->read_connection,
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size, &objects, &message);
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assert(closure);
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wl_closure_invoke(closure, &object, func, data);
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wl_closure_destroy(closure);
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}
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TEST(connection_demarshal)
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{
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struct marshal_data data;
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uint32_t msg[10];
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setup_marshal_data(&data);
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data.value.u = 8000;
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msg[0] = 400200; /* object id */
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msg[1] = 12; /* size = 12, opcode = 0 */
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msg[2] = data.value.u;
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demarshal(&data, "u", msg, (void *) validate_demarshal_u);
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data.value.i = -557799;
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msg[0] = 400200;
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msg[1] = 12;
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msg[2] = data.value.i;
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demarshal(&data, "i", msg, (void *) validate_demarshal_i);
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data.value.s = "superdude";
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msg[0] = 400200;
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msg[1] = 24;
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msg[2] = 10;
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memcpy(&msg[3], data.value.s, msg[2]);
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demarshal(&data, "s", msg, (void *) validate_demarshal_s);
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data.value.s = "superdude";
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msg[0] = 400200;
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msg[1] = 24;
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msg[2] = 10;
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memcpy(&msg[3], data.value.s, msg[2]);
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demarshal(&data, "?s", msg, (void *) validate_demarshal_s);
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data.value.i = wl_fixed_from_double(-90000.2390);
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msg[0] = 400200;
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msg[1] = 12;
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msg[2] = data.value.i;
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demarshal(&data, "f", msg, (void *) validate_demarshal_f);
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data.value.s = NULL;
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msg[0] = 400200;
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msg[1] = 12;
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msg[2] = 0;
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demarshal(&data, "?s", msg, (void *) validate_demarshal_s);
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release_marshal_data(&data);
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}
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static void
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marshal_demarshal(struct marshal_data *data,
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void (*func)(void), int size, const char *format, ...)
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{
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struct wl_closure *closure;
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static const int opcode = 4444;
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static struct wl_object sender = { NULL, NULL, 1234 };
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struct wl_message message = { "test", format, NULL };
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struct wl_map objects;
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struct wl_object object;
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va_list ap;
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uint32_t msg[1] = { 1234 };
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va_start(ap, format);
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closure = wl_closure_vmarshal(&sender, opcode, ap, &message);
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va_end(ap);
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assert(closure);
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assert(wl_closure_send(closure, data->write_connection) == 0);
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wl_closure_destroy(closure);
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assert(wl_connection_flush(data->write_connection) == size);
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assert(wl_connection_read(data->read_connection) == size);
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wl_map_init(&objects);
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object.id = msg[0];
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closure = wl_connection_demarshal(data->read_connection,
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size, &objects, &message);
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wl_closure_invoke(closure, &object, func, data);
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wl_closure_destroy(closure);
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}
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TEST(connection_marshal_demarshal)
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{
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struct marshal_data data;
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char f[] = "/tmp/weston-tests-XXXXXX";
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setup_marshal_data(&data);
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data.value.u = 889911;
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marshal_demarshal(&data, (void *) validate_demarshal_u,
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12, "u", data.value.u);
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data.value.i = -13;
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marshal_demarshal(&data, (void *) validate_demarshal_i,
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12, "i", data.value.i);
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data.value.s = "cookie robots";
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marshal_demarshal(&data, (void *) validate_demarshal_s,
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28, "s", data.value.s);
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data.value.s = "cookie robots";
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marshal_demarshal(&data, (void *) validate_demarshal_s,
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28, "?s", data.value.s);
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data.value.h = mkstemp(f);
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assert(data.value.h >= 0);
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marshal_demarshal(&data, (void *) validate_demarshal_h,
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8, "h", data.value.h);
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data.value.i = wl_fixed_from_double(1234.5678);
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marshal_demarshal(&data, (void *) validate_demarshal_f,
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12, "f", data.value.i);
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data.value.i = wl_fixed_from_double(-90000.2390);
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marshal_demarshal(&data, (void *) validate_demarshal_f,
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12, "f", data.value.i);
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data.value.i = wl_fixed_from_double((1 << 23) - 1 + 0.0941);
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marshal_demarshal(&data, (void *) validate_demarshal_f,
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12, "f", data.value.i);
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release_marshal_data(&data);
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}
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TEST(connection_marshal_alot)
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{
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struct marshal_data data;
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char f[64];
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int i;
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setup_marshal_data(&data);
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/* We iterate enough to make sure we wrap the circular buffers
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* for both regular data an fds. */
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for (i = 0; i < 2000; i++) {
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strcpy(f, "/tmp/weston-tests-XXXXXX");
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data.value.h = mkstemp(f);
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assert(data.value.h >= 0);
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marshal_demarshal(&data, (void *) validate_demarshal_h,
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8, "h", data.value.h);
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}
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release_marshal_data(&data);
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}
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static void
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marshal_helper(const char *format, void *handler, ...)
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{
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struct wl_closure *closure;
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static struct wl_object sender = { NULL, NULL, 1234 }, object;
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static const int opcode = 4444;
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struct wl_message message = { "test", format, NULL };
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va_list ap;
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int done;
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va_start(ap, handler);
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closure = wl_closure_vmarshal(&sender, opcode, ap, &message);
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va_end(ap);
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assert(closure);
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done = 0;
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wl_closure_invoke(closure, &object, handler, &done);
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wl_closure_destroy(closure);
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assert(done);
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}
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static void
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suu_handler(void *data, struct wl_object *object,
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const char *s, uint32_t u1, uint32_t u2)
|
|
{
|
|
int *done = data;
|
|
|
|
assert(strcmp(s, "foo") == 0);
|
|
assert(u1 = 500);
|
|
assert(u2 = 404040);
|
|
*done = 1;
|
|
}
|
|
|
|
TEST(invoke_closure)
|
|
{
|
|
marshal_helper("suu", suu_handler, "foo", 500, 404040);
|
|
}
|