1
Fork 0
mirror of git://git.sv.gnu.org/emacs.git synced 2026-01-07 04:10:27 -08:00
emacs/mps/code/messtest.c
Peter Jackson 1d00afac81 Publish licence updates in code directory.
Publish minor changes to readme and configure files in main directory.
Main directory and code directory licence texts are now fully updated.

Copied from Perforce
 Change: 196994
2020-06-11 17:05:40 +01:00

304 lines
8 KiB
C

/* messtest.c: MESSAGE TEST
*
* $Id$
* Copyright (c) 2001-2020 Ravenbrook Limited. See end of file for license.
*/
#include "mpm.h"
#include "mpsavm.h"
#include "mps.h"
#include "testlib.h"
#include "mpslib.h"
#include <stdio.h> /* printf */
SRCID(messtest, "$Id$");
/* Basic infrastructure for creating dummy messages */
static void dfMessageDelete(Message message)
{
Arena arena;
arena = MessageArena(message);
ControlFree(arena, (void *)message, sizeof(MessageStruct));
}
/* DFMessageClassStruct -- dummy finalization message class */
static MessageClassStruct DFMessageClassStruct = {
MessageClassSig, /* sig */
"DummyFinal", /* name */
MessageTypeFINALIZATION, /* Message Type */
dfMessageDelete, /* Delete */
MessageNoFinalizationRef, /* FinalizationRef */
MessageNoGCLiveSize, /* GCLiveSize */
MessageNoGCCondemnedSize, /* GCCondemnedSize */
MessageNoGCNotCondemnedSize, /* GCNotCondemnedSize */
MessageNoGCStartWhy, /* GCStartWhy */
MessageClassSig /* <design/message#.class.sig.double> */
};
/* DGCMessageClassStruct -- dummy GC message class */
static MessageClassStruct DGCMessageClassStruct = {
MessageClassSig, /* sig */
"DummyGC", /* name */
MessageTypeGC, /* Message Type */
dfMessageDelete, /* Delete */
MessageNoFinalizationRef, /* FinalizationRef */
MessageNoGCLiveSize, /* GCLiveSize */
MessageNoGCCondemnedSize, /* GCCondemnedSize */
MessageNoGCNotCondemnedSize, /* GCNoteCondemnedSize */
MessageNoGCStartWhy, /* GCStartWhy */
MessageClassSig /* <design/message#.class.sig.double> */
};
static void checkNoMessages(Arena arena)
{
cdie(!MessagePoll(arena), "Queue not empty");
}
static void topMessageType(MessageType *typeReturn, Arena arena)
{
cdie(MessageQueueType(typeReturn, arena), "Queue empty");
}
/* postDummyMessage -- post a dummy message */
static void postDummyMessage(Arena arena, MessageClass klass,
MessageType type)
{
void *p;
Message message;
die((mps_res_t)ControlAlloc(&p, arena, sizeof(MessageStruct)),
"AllocMessage");
message = (Message)p;
MessageInit(arena, message, klass, type);
MessagePost(arena, message);
}
/* postFinalizationMessage -- post dummy finalization message */
static void postFinalizationMessage(Arena arena)
{
postDummyMessage(arena, &DFMessageClassStruct, MessageTypeFINALIZATION);
}
/* postGCMessage -- post dummy GC message */
static void postGCMessage(Arena arena)
{
postDummyMessage(arena, &DGCMessageClassStruct, MessageTypeGC);
}
/* postInterleavedMessages -- post a couple of each message type */
static void postInterleavedMessages(Arena arena)
{
postFinalizationMessage(arena);
postGCMessage(arena);
postFinalizationMessage(arena);
postGCMessage(arena);
}
/* eatMessageOfType -- get a message of a specified type
*
* There must be at least 1 message of that type on the queue.
*/
static void eatMessageOfType(Arena arena, MessageType type)
{
Message message;
cdie(MessageGet(&message, arena, type), "No message");
MessageDiscard(arena, message);
}
/* eatHiddenMessage -- get a message which isn't at top of queue
*
* Assumes there is at least 1 message of each of Finalization
* and GC types.
*/
static void eatHiddenMessage(Arena arena)
{
MessageType type, eatType;
topMessageType(&type, arena);
if (type != MessageTypeGC) {
eatType = MessageTypeGC;
} else {
eatType = MessageTypeFINALIZATION;
}
eatMessageOfType(arena, eatType);
}
/* eatTopMessageOfType -- get a message which is at top of queue
*
* The message must be of the specified type.
* Assumes there is at least 1 message on the queue.
*/
static void eatTopMessageOfType(Arena arena, MessageType type)
{
MessageType topType;
topMessageType(&topType, arena);
cdie((topType == type), "Unexpected type");
eatMessageOfType(arena, type);
}
/* eatTopMessage -- get a message which is at top of queue
*
* Assumes there is at least 1 message on the queue.
*/
static void eatTopMessage(Arena arena)
{
MessageType type;
topMessageType(&type, arena);
eatMessageOfType(arena, type);
}
/* testInterleaving -- test interleaving messages of different types
*
* See request.dylan.160204_
* must be able to retrieve a message even if a message of
* another type is at the head of the queue.
*
* .. _request.dylan.160204: https://info.ravenbrook.com/project/mps/import/2001-11-05/mmprevol/request/dylan/160204
*/
static void testInterleaving(Arena arena)
{
MessageEmpty(arena);
/* enable both types of message */
MessageTypeEnable(arena, MessageTypeGC);
MessageTypeEnable(arena, MessageTypeFINALIZATION);
/* post a couple of interleaved messages of each type */
postInterleavedMessages(arena);
/* check that we can pull out 2 messages not at the head */
eatHiddenMessage(arena);
eatHiddenMessage(arena);
/* check that we can pull out 2 messages which are at the head */
eatTopMessage(arena);
eatTopMessage(arena);
}
/* testDisabling -- test message types can be disabled
*
* See request.dylan.160204_
* .. _request.dylan.160204: https://info.ravenbrook.com/project/mps/import/2001-11-05/mmprevol/request/dylan/160204
*/
static void testDisabling(Arena arena)
{
MessageEmpty(arena);
/* enable both types of message */
MessageTypeEnable(arena, MessageTypeGC);
MessageTypeEnable(arena, MessageTypeFINALIZATION);
/* post a couple of interleaved messages of each type */
postInterleavedMessages(arena);
/* Disable one of the types */
MessageTypeDisable(arena, MessageTypeFINALIZATION);
/* check that we can pull out 2 messages of the other type */
eatTopMessageOfType(arena, MessageTypeGC);
eatTopMessageOfType(arena, MessageTypeGC);
/* check that the queue is empty */
checkNoMessages(arena);
/* Post a disabled message */
postFinalizationMessage(arena);
/* check that the queue is still empty */
checkNoMessages(arena);
}
/* testGetEmpty -- test we don't AVER when getting a non-existent message */
static void testGetEmpty(Arena arena)
{
Message message;
MessageEmpty(arena);
checkNoMessages(arena);
cdie(!MessageGet(&message, arena, MessageTypeGC), "Got non-existent message");
}
#define testArenaSIZE (((size_t)64)<<20)
int main(int argc, char *argv[])
{
mps_arena_t mpsArena;
Arena arena;
testlib_init(argc, argv);
die(mps_arena_create(&mpsArena, mps_arena_class_vm(), testArenaSIZE),
"mps_arena_create");
arena = (Arena)mpsArena;
testGetEmpty(arena);
testInterleaving(arena);
testDisabling(arena);
printf("%s: Conclusion: Failed to find any defects.\n", argv[0]);
return 0;
}
/* C. COPYRIGHT AND LICENSE
*
* Copyright (C) 2001-2020 Ravenbrook Limited <http://www.ravenbrook.com/>.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are
* met:
*
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
*
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the
* distribution.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS
* IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
* TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A
* PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
* HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/