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Made the (BHandler*, BLooper*,) constructor more robust. Now the looper list is locked and the looper checked for validity.

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git-svn-id: file:///srv/svn/repos/haiku/trunk/current@3581 a95241bf-73f2-0310-859d-f6bbb57e9c96
This commit is contained in:
Ingo Weinhold 2003-06-20 00:18:56 +00:00
parent adf43596d6
commit 37faaaded5
1 changed files with 13 additions and 15 deletions
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28
src/kits/app/Messenger.cpp
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@ -47,6 +47,7 @@
// Project Includes ------------------------------------------------------------
#include <AppMisc.h>
#include <MessageUtils.h>
#include "ObjectLocker.h"
#include "TokenSpace.h"
// Local Includes --------------------------------------------------------------
@ -56,6 +57,9 @@
// Globals ---------------------------------------------------------------------
using BPrivate::gDefaultTokens;
using BPrivate::gLooperList;
using BPrivate::BLooperList;
using BPrivate::BObjectLocker;
enum {
NOT_IMPLEMENTED = B_ERROR,
@ -131,23 +135,17 @@ BMessenger::BMessenger(const BHandler *handler, const BLooper *looper,
if (looper == NULL)
error = B_MISMATCHED_VALUES;
}
// set port, token,...
if (error == B_OK) {
fPort = looper->fMsgPort;
fHandlerToken = _get_object_token_(handler);
fPreferredTarget = false;
}
} else { // handler == NULL (=> looper != NULL)
fPort = looper->fMsgPort;
fHandlerToken = false;
fPreferredTarget = true;
}
// get and set the team ID
// set port, token,...
if (error == B_OK) {
thread_info info;
error = get_thread_info(find_thread(NULL), &info);
if (error == B_OK)
fTeam = info.team;
BObjectLocker<BLooperList> locker(gLooperList);
if (locker.IsLocked() && gLooperList.IsLooperValid(looper)) {
fPort = looper->fMsgPort;
fHandlerToken = (handler ? _get_object_token_(handler) : -1);
fPreferredTarget = !handler;
fTeam = looper->Team();
} else
error = B_BAD_VALUE;
}
}
if (result)