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* Don't use any member variables when sending a sync call, since SyncChannel ↵jam@chromium.org2009-12-011-18/+44
| | | | | | | | | could be deleted. BUG=20364 Review URL: http://codereview.chromium.org/455011 git-svn-id: svn://svn.chromium.org/chrome/trunk/src@33414 0039d316-1c4b-4281-b951-d872f2087c98
* Suppress a data race on vfptr in ipc/ipc_sync_channel_unittest.cctimurrrr@chromium.org2009-10-271-2/+15
| | | | | | | | | | This race was already suppressed, but the existing suppression doesn't work if the order of accesses is different. We can prepare a suppression to make TSAN bots silent but it will be way too wide. I think adding one line of annotation with comment (twice) is better in terms of precision. BUG=25841 Review URL: http://codereview.chromium.org/339008 git-svn-id: svn://svn.chromium.org/chrome/trunk/src@30181 0039d316-1c4b-4281-b951-d872f2087c98
* John, please review everything.ananta@chromium.org2009-10-141-69/+76
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | agl, please review changes to the waitable_event_watcher code. Multiple sync channels if used in the same listener thread could result in calls completing in the wrong context at times. This happens if there are nested calls on these sync channels, i.e 1. Call from client 1 on channel 1 to server 1. Message pumping is enabled for the corresponding message 2. Call from client 2 on channel 2 to server 2, Message pumping is enabled for the corresponding message Now if a reply for 1 arrives, it should be queued until reply 2 arrives. This does not happen which causes 2 to terminate prematurely leading to crashes, 1 waiting indefinitely at times, etc. The fix for this issue is to maintain a local global stack for the send done event watcher object. The global object is in the form of a TLS. This ensures that we only watch for completed events on the outermost sync channel. The changes in the Waitable event watcher object are to return the current delegate which is needed to start watching the old send watcher once we are done and to ensure that the event member is set even if it was already signaled when StartWatching was called. I have added a unit test in ipc_tests for this case. I removed the old QueuedReply based unit tests as they did not test the actual nested call case. While debugging these issues I also found some issues in BrowserRenderProcessHost::OnChannelError where it would delete a sync channel while it was in use. Based on a discussion with jam we decided to DeleteSoon the sync channel pointer. However this broke some browser ui tests which relied on the timing of the OnChannelError notification. We decided to leave the existing code as is for now. I removed the DCHECK on channel as it would fire repeatedly if the channel died while multiple sync calls were waiting to complete leading to OnChannelError firing multiple times. Bug=24427 Review URL: http://codereview.chromium.org/271033 git-svn-id: svn://svn.chromium.org/chrome/trunk/src@28967 0039d316-1c4b-4281-b951-d872f2087c98
* Reverting 27389.darin@chromium.org2009-09-301-0/+1
| | | | | | Review URL: http://codereview.chromium.org/246027 git-svn-id: svn://svn.chromium.org/chrome/trunk/src@27594 0039d316-1c4b-4281-b951-d872f2087c98
* Reverting 27379, in hopes of fixing browser_tests.senorblanco@chromium.org2009-09-281-1/+0
| | | | | | | | TBR=darin Review URL: http://codereview.chromium.org/248021 git-svn-id: svn://svn.chromium.org/chrome/trunk/src@27389 0039d316-1c4b-4281-b951-d872f2087c98
* Assert that thread-safe reference counting is used withdarin@chromium.org2009-09-281-0/+1
| | | | | | | | | | | | | | | | | | | | | | | | cross-thread NewRunnableMethod. This assertion caught such an error in VisitedLinkMaster! My approach, modify RunnableMethodTraits<T> to assert that when ReleaseCallee happens on a different thread from RetainCallee that the type supports thread-safe reference counting. I do this by adding a static method to both RefCounted<T> and RefCountedThreadSafe<T>. This results in a little ugliness in cases where people implement AddRef and Release by hand (to make the no-ops). There may be a nicer way to deal with those few cases. R=brettw BUG=none TEST=none Review URL: http://codereview.chromium.org/251012 git-svn-id: svn://svn.chromium.org/chrome/trunk/src@27379 0039d316-1c4b-4281-b951-d872f2087c98
* Split the IPC code into ipc/agl@chromium.org2009-07-221-0/+1009
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This splits the ipc code from the common project. The 'common' project pulls in all of webkit, the v8 bindings, skia, googleurl, and a number of other projects which makes it very difficult to deal with especially for external projects wanting just to use some of Chromium's infrastructure. This puts the ipc code into its top-level ipc/ directory with a dependency only on base. The common project depends on the new ipc/ipc.gyp:ipc target so that all projects currently pulling common in to get the IPC code still have it available. This mostly follows agl's pre-gyp attempt to do this which was r13062. Known issues: - Currently a number of projects depend on chrome/chrome.gyp:common in order to use the IPC infrastructure. Rather than fixing all of these dependencies I have made common depend on ipc/ipc.gyp:ipc and added "ipc" to the include_rules section of DEPS so that checkdeps.py doesn't complain. Over time projects that need IPC should depend on the IPC project themselves and dependencies on common removed, although I don't think many projects that need IPC will be able to get away without common currently. - ipc/ipc_message_macros.h still has #include "chrome/common/..." inside of a ipc/ should not refer to files in chrome/... now. I'm not sure how to resolve this since it's really an IDE bug - the named pipe name (windows+linux) and the logging event name (all) + env variable (posix) refer explicitly to 'Chrome' which somewhat hurts the illusion of ipc/ being an independent library. I think this should be examined in a subsequent, much smaller patch. - I've eliminated the IPC.SendMsgCount counter since it was implemented in a way to create a dependency from ipc/ to chrome/common/chrome_counters. This is the same approach that r13062 took. http://codereview.chromium.org/155905 (Patch from James Robinson) git-svn-id: svn://svn.chromium.org/chrome/trunk/src@21342 0039d316-1c4b-4281-b951-d872f2087c98
* Revert "Move IPC code to ipc/"agl@chromium.org2009-04-031-1013/+0
| | | | | | | This reverts commit r13062 which, unsurprisingly, broke the build. git-svn-id: svn://svn.chromium.org/chrome/trunk/src@13063 0039d316-1c4b-4281-b951-d872f2087c98
* Move IPC code to ipc/agl@chromium.org2009-04-031-0/+1013
(No review URL: Rietvelt couldn't cope) git-svn-id: svn://svn.chromium.org/chrome/trunk/src@13062 0039d316-1c4b-4281-b951-d872f2087c98