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authorwillchan@chromium.org <willchan@chromium.org@0039d316-1c4b-4281-b951-d872f2087c98>2010-11-12 21:25:38 +0000
committerwillchan@chromium.org <willchan@chromium.org@0039d316-1c4b-4281-b951-d872f2087c98>2010-11-12 21:25:38 +0000
commit82e8e2b5b879cd414e48e6418fb1a693093866e2 (patch)
tree513b4c2186f8be29e2d8a7d56e76a75d96dbf437 /base/platform_thread_win.cc
parent48a5faa6500b6c6055348abf1540cbb06c721f33 (diff)
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Disallow Singleton and LazyInstance on non-joinable threads.
Fix all known instances or explicitly allow them. Usually the fix involves switching from Default traits to Lazy traits. BUG=61753 TEST=none Review URL: http://codereview.chromium.org/4635012 git-svn-id: svn://svn.chromium.org/chrome/trunk/src@65996 0039d316-1c4b-4281-b951-d872f2087c98
Diffstat (limited to 'base/platform_thread_win.cc')
-rw-r--r--base/platform_thread_win.cc42
1 files changed, 31 insertions, 11 deletions
diff --git a/base/platform_thread_win.cc b/base/platform_thread_win.cc
index a4a1b52..ce865da 100644
--- a/base/platform_thread_win.cc
+++ b/base/platform_thread_win.cc
@@ -5,6 +5,7 @@
#include "base/platform_thread.h"
#include "base/logging.h"
+#include "base/thread_restrictions.h"
#include "base/win/windows_version.h"
namespace {
@@ -20,9 +21,17 @@ typedef struct tagTHREADNAME_INFO {
DWORD dwFlags; // Reserved for future use, must be zero.
} THREADNAME_INFO;
-DWORD __stdcall ThreadFunc(void* closure) {
- PlatformThread::Delegate* delegate =
- static_cast<PlatformThread::Delegate*>(closure);
+struct ThreadParams {
+ PlatformThread::Delegate* delegate;
+ bool joinable;
+};
+
+DWORD __stdcall ThreadFunc(void* params) {
+ ThreadParams* thread_params = static_cast<ThreadParams*>(params);
+ PlatformThread::Delegate* delegate = thread_params->delegate;
+ if (!thread_params->joinable)
+ base::ThreadRestrictions::SetSingletonAllowed(false);
+ delete thread_params;
delegate->ThreadMain();
return NULL;
}
@@ -66,7 +75,8 @@ void PlatformThread::SetName(const char* name) {
// static
bool PlatformThread::Create(size_t stack_size, Delegate* delegate,
- PlatformThreadHandle* thread_handle) {
+ PlatformThreadHandle* out_thread_handle) {
+ PlatformThreadHandle thread_handle;
unsigned int flags = 0;
if (stack_size > 0 && base::win::GetVersion() >= base::win::VERSION_XP) {
flags = STACK_SIZE_PARAM_IS_A_RESERVATION;
@@ -74,22 +84,32 @@ bool PlatformThread::Create(size_t stack_size, Delegate* delegate,
stack_size = 0;
}
+ ThreadParams* params = new ThreadParams;
+ params->delegate = delegate;
+ params->joinable = out_thread_handle != NULL;
+
// Using CreateThread here vs _beginthreadex makes thread creation a bit
// faster and doesn't require the loader lock to be available. Our code will
// have to work running on CreateThread() threads anyway, since we run code
// on the Windows thread pool, etc. For some background on the difference:
// http://www.microsoft.com/msj/1099/win32/win321099.aspx
- *thread_handle = CreateThread(
- NULL, stack_size, ThreadFunc, delegate, flags, NULL);
- return *thread_handle != NULL;
+ thread_handle = CreateThread(
+ NULL, stack_size, ThreadFunc, params, flags, NULL);
+ if (!thread_handle) {
+ delete params;
+ return false;
+ }
+
+ if (out_thread_handle)
+ *out_thread_handle = thread_handle;
+ else
+ CloseHandle(thread_handle);
+ return true;
}
// static
bool PlatformThread::CreateNonJoinable(size_t stack_size, Delegate* delegate) {
- PlatformThreadHandle thread_handle;
- bool result = Create(stack_size, delegate, &thread_handle);
- CloseHandle(thread_handle);
- return result;
+ return Create(stack_size, delegate, NULL);
}
// static