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authorrubidium <rubidium@openttd.org>2008-06-08 15:27:57 +0000
committerrubidium <rubidium@openttd.org>2008-06-08 15:27:57 +0000
commitf80d8dbe0c212858ab2380c3d7b65643eb576cc1 (patch)
tree376004aeb09d74a071fcdddcc61f01e9ea005d8b /src
parentb830e6c714453385c004ac59859b1cd5d44eaeb3 (diff)
downloadopenttd-f80d8dbe0c212858ab2380c3d7b65643eb576cc1.tar.xz
(svn r13417) -Fix (r12945, r13413): freeing the ThreadObjects in a manner that hopefully doesn't cause crashes.
Diffstat (limited to 'src')
-rw-r--r--src/fiber_thread.cpp2
-rw-r--r--src/genworld.cpp14
-rw-r--r--src/saveload.cpp12
-rw-r--r--src/thread.h10
-rw-r--r--src/thread_morphos.cpp15
-rw-r--r--src/thread_none.cpp2
-rw-r--r--src/thread_os2.cpp2
-rw-r--r--src/thread_pthread.cpp15
-rw-r--r--src/thread_win32.cpp15
9 files changed, 36 insertions, 51 deletions
diff --git a/src/fiber_thread.cpp b/src/fiber_thread.cpp
index fb4e8debf..5155b5519 100644
--- a/src/fiber_thread.cpp
+++ b/src/fiber_thread.cpp
@@ -32,7 +32,7 @@ public:
{
this->m_sem = ThreadSemaphore::New();
/* Create a thread and start stFiberProc */
- this->m_thread = ThreadObject::New(&stFiberProc, this, NULL);
+ this->m_thread = ThreadObject::New(&stFiberProc, this);
}
/**
diff --git a/src/genworld.cpp b/src/genworld.cpp
index 424750165..05e61b44a 100644
--- a/src/genworld.cpp
+++ b/src/genworld.cpp
@@ -156,7 +156,6 @@ static void _GenerateWorld(void *arg)
/* Show all vital windows again, because we have hidden them */
if (_gw.threaded && _game_mode != GM_MENU) ShowVitalWindows();
_gw.active = false;
- _gw.thread = NULL;
_gw.proc = NULL;
_gw.threaded = false;
@@ -199,6 +198,7 @@ void WaitTillGeneratedWorld()
if (_gw.thread == NULL) return;
_gw.quit_thread = true;
_gw.thread->Join();
+ delete _gw.thread;
_gw.thread = NULL;
_gw.threaded = false;
}
@@ -233,9 +233,7 @@ void HandleGeneratingWorldAbortion()
/* Show all vital windows again, because we have hidden them */
if (_gw.threaded && _game_mode != GM_MENU) ShowVitalWindows();
- ThreadObject *thread = _gw.thread;
_gw.active = false;
- _gw.thread = NULL;
_gw.proc = NULL;
_gw.abortp = NULL;
_gw.threaded = false;
@@ -243,7 +241,7 @@ void HandleGeneratingWorldAbortion()
DeleteWindowById(WC_GENERATE_PROGRESS_WINDOW, 0);
MarkWholeScreenDirty();
- thread->Exit();
+ _gw.thread->Exit();
}
/**
@@ -287,8 +285,14 @@ void GenerateWorld(GenerateWorldMode mode, uint size_x, uint size_y)
/* Create toolbars */
SetupColorsAndInitialWindow();
+ if (_gw.thread != NULL) {
+ _gw.thread->Join();
+ delete _gw.thread;
+ _gw.thread = NULL;
+ }
+
if (_network_dedicated ||
- (_gw.thread = ThreadObject::New(&_GenerateWorld, NULL, &ThreadObject::TerminateCleanup)) == NULL) {
+ (_gw.thread = ThreadObject::New(&_GenerateWorld, NULL)) == NULL) {
DEBUG(misc, 1, "Cannot create genworld thread, reverting to single-threaded mode");
_gw.threaded = false;
_GenerateWorld(NULL);
diff --git a/src/saveload.cpp b/src/saveload.cpp
index 585070cd1..dd0824582 100644
--- a/src/saveload.cpp
+++ b/src/saveload.cpp
@@ -95,6 +95,7 @@ static void NORETURN SlError(StringID string, const char *extra_msg = NULL)
typedef void (*AsyncSaveFinishProc)();
static AsyncSaveFinishProc _async_save_finish = NULL;
+static ThreadObject *_save_thread;
/**
* Called by save thread to tell we finished saving.
@@ -117,6 +118,12 @@ void ProcessAsyncSaveFinish()
_async_save_finish();
_async_save_finish = NULL;
+
+ if (_save_thread != NULL) {
+ _save_thread->Join();
+ delete _save_thread;
+ _save_thread = NULL;
+ }
}
/**
@@ -1545,8 +1552,6 @@ static void SaveFileError()
SaveFileDone();
}
-static ThreadObject *_save_thread;
-
/** We have written the whole game into memory, _Savegame_pool, now find
* and appropiate compressor and start writing to file.
*/
@@ -1617,6 +1622,7 @@ void WaitTillSaved()
if (_save_thread == NULL) return;
_save_thread->Join();
+ delete _save_thread;
_save_thread = NULL;
}
@@ -1695,7 +1701,7 @@ SaveOrLoadResult SaveOrLoad(const char *filename, int mode, Subdirectory sb)
SaveFileStart();
if (_network_server ||
- (_save_thread = ThreadObject::New(&SaveFileToDiskThread, NULL, &ThreadObject::TerminateCleanup)) == NULL) {
+ (_save_thread = ThreadObject::New(&SaveFileToDiskThread, NULL)) == NULL) {
if (!_network_server) DEBUG(sl, 1, "Cannot create savegame thread, reverting to single-threaded mode...");
SaveOrLoadResult result = SaveFileToDisk(false);
diff --git a/src/thread.h b/src/thread.h
index deaea0cd9..f6f29a711 100644
--- a/src/thread.h
+++ b/src/thread.h
@@ -6,7 +6,6 @@
#define THREAD_H
typedef void (*OTTDThreadFunc)(void *);
-typedef void (*OTTDThreadTerminateFunc)(class ThreadObject *self);
/**
* A Thread Object which works on all our supported OSes.
@@ -57,10 +56,9 @@ public:
* with optinal params.
* @param proc The procedure to call inside the thread.
* @param param The params to give with 'proc'.
- * @param terminate_func The function (or NULL) to call when the thread terminates.
* @return True if the thread was started correctly.
*/
- static ThreadObject *New(OTTDThreadFunc proc, void *param, OTTDThreadTerminateFunc terminate_func);
+ static ThreadObject *New(OTTDThreadFunc proc, void *param);
/**
* Convert the current thread to a new ThreadObject.
@@ -73,12 +71,6 @@ public:
* @return The thread ID of the current active thread.
*/
static uint CurrentId();
-
- /**
- * A OTTDThreadTerminateFunc, which cleans up the thread itself
- * at termination of the thread (so it becomes self-managed).
- */
- static void TerminateCleanup(ThreadObject *self) { delete self; }
};
/**
diff --git a/src/thread_morphos.cpp b/src/thread_morphos.cpp
index 6df33baac..ef074da45 100644
--- a/src/thread_morphos.cpp
+++ b/src/thread_morphos.cpp
@@ -57,7 +57,6 @@ void KPutStr(CONST_STRPTR format)
class ThreadObject_MorphOS : public ThreadObject {
private:
APTR m_thr; ///< System thread identifier.
- OTTDThreadTerminateFunc m_terminate_func; ///< Function to call on thread termination.
struct MsgPort *m_replyport;
struct OTTDThreadStartupMessage m_msg;
@@ -65,9 +64,7 @@ public:
/**
* Create a sub process and start it, calling proc(param).
*/
- ThreadObject_MorphOS(OTTDThreadFunc proc, void *param, OTTDThreadTerminateFunc terminate_func) :
- m_thr(0),
- m_terminate_func(terminate_func)
+ ThreadObject_MorphOS(OTTDThreadFunc proc, void *param) : m_thr(0)
{
struct Task *parent;
@@ -114,9 +111,7 @@ public:
/**
* Create a thread and attach current thread to it.
*/
- ThreadObject_MorphOS() :
- m_thr(0),
- m_terminate_func(NULL)
+ ThreadObject_MorphOS() : m_thr(0)
{
m_thr = FindTask(NULL);
}
@@ -215,14 +210,12 @@ private:
/* Quit the child, exec.library will reply the startup msg internally. */
KPutStr("[Child] Done.\n");
-
- if (this->terminate_func != NULL) this->terminate_func(this);
}
};
-/* static */ ThreadObject *ThreadObject::New(OTTDThreadFunc proc, void *param, OTTDThreadTerminateFunc terminate_func)
+/* static */ ThreadObject *ThreadObject::New(OTTDThreadFunc proc, void *param)
{
- return new ThreadObject_MorphOS(proc, param, terminate_func);
+ return new ThreadObject_MorphOS(proc, param);
}
/* static */ ThreadObject *ThreadObject::AttachCurrent()
diff --git a/src/thread_none.cpp b/src/thread_none.cpp
index 76f113584..6209e89a7 100644
--- a/src/thread_none.cpp
+++ b/src/thread_none.cpp
@@ -6,7 +6,7 @@
#include "thread.h"
#include "fiber.hpp"
-/* static */ ThreadObject *ThreadObject::New(OTTDThreadFunc proc, void *param, OTTDThreadTerminateFunc terminate_func)
+/* static */ ThreadObject *ThreadObject::New(OTTDThreadFunc proc, void *param)
{
return NULL;
}
diff --git a/src/thread_os2.cpp b/src/thread_os2.cpp
index 1f5121a7a..29b33557f 100644
--- a/src/thread_os2.cpp
+++ b/src/thread_os2.cpp
@@ -59,7 +59,7 @@ void OTTDExitThread()
#endif
-/* static */ ThreadObject *ThreadObject::New(OTTDThreadFunc proc, void *param, OTTDThreadTerminateFunc terminate_func)
+/* static */ ThreadObject *ThreadObject::New(OTTDThreadFunc proc, void *param)
{
return NULL;
}
diff --git a/src/thread_pthread.cpp b/src/thread_pthread.cpp
index 617760000..b3f340b6a 100644
--- a/src/thread_pthread.cpp
+++ b/src/thread_pthread.cpp
@@ -22,18 +22,16 @@ private:
bool m_attached; ///< True if the ThreadObject was attached to an existing thread.
sem_t m_sem_start; ///< Here the new thread waits before it starts.
sem_t m_sem_stop; ///< Here the other thread can wait for this thread to end.
- OTTDThreadTerminateFunc m_terminate_func; ///< Function to call on thread termination.
public:
/**
* Create a pthread and start it, calling proc(param).
*/
- ThreadObject_pthread(OTTDThreadFunc proc, void *param, OTTDThreadTerminateFunc terminate_func) :
+ ThreadObject_pthread(OTTDThreadFunc proc, void *param) :
m_thr(0),
m_proc(proc),
m_param(param),
- m_attached(false),
- m_terminate_func(terminate_func)
+ m_attached(false)
{
sem_init(&m_sem_start, 0, 0);
sem_init(&m_sem_stop, 0, 0);
@@ -49,8 +47,7 @@ public:
m_thr(0),
m_proc(NULL),
m_param(0),
- m_attached(true),
- m_terminate_func(NULL)
+ m_attached(true)
{
sem_init(&m_sem_start, 0, 0);
sem_init(&m_sem_stop, 0, 0);
@@ -145,14 +142,12 @@ private:
/* Notify threads waiting for our completion */
sem_post(&m_sem_stop);
-
- if (this->m_terminate_func != NULL) this->m_terminate_func(this);
}
};
-/* static */ ThreadObject *ThreadObject::New(OTTDThreadFunc proc, void *param, OTTDThreadTerminateFunc terminate_func)
+/* static */ ThreadObject *ThreadObject::New(OTTDThreadFunc proc, void *param)
{
- return new ThreadObject_pthread(proc, param, terminate_func);
+ return new ThreadObject_pthread(proc, param);
}
/* static */ ThreadObject *ThreadObject::AttachCurrent()
diff --git a/src/thread_win32.cpp b/src/thread_win32.cpp
index 4ccd21e93..6f12a6fbc 100644
--- a/src/thread_win32.cpp
+++ b/src/thread_win32.cpp
@@ -20,19 +20,17 @@ private:
OTTDThreadFunc m_proc;
void *m_param;
bool m_attached;
- OTTDThreadTerminateFunc m_terminate_func;
public:
/**
* Create a win32 thread and start it, calling proc(param).
*/
- ThreadObject_Win32(OTTDThreadFunc proc, void *param, OTTDThreadTerminateFunc terminate_func) :
+ ThreadObject_Win32(OTTDThreadFunc proc, void *param) :
m_id_thr(0),
m_h_thr(NULL),
m_proc(proc),
m_param(param),
- m_attached(false),
- m_terminate_func(terminate_func)
+ m_attached(false)
{
m_h_thr = (HANDLE)_beginthreadex(NULL, 0, &stThreadProc, this, CREATE_SUSPENDED, &m_id_thr);
if (m_h_thr == NULL) return;
@@ -47,8 +45,7 @@ public:
m_h_thr(NULL),
m_proc(NULL),
m_param(NULL),
- m_attached(false),
- m_terminate_func(NULL)
+ m_attached(false)
{
BOOL ret = DuplicateHandle(GetCurrentProcess(), GetCurrentThread(), GetCurrentProcess(), &m_h_thr, 0, FALSE, DUPLICATE_SAME_ACCESS);
if (!ret) return;
@@ -133,14 +130,12 @@ private:
m_proc(m_param);
} catch (...) {
}
-
- if (this->m_terminate_func != NULL) this->m_terminate_func(this);
}
};
-/* static */ ThreadObject *ThreadObject::New(OTTDThreadFunc proc, void *param, OTTDThreadTerminateFunc terminate_func)
+/* static */ ThreadObject *ThreadObject::New(OTTDThreadFunc proc, void *param)
{
- return new ThreadObject_Win32(proc, param, terminate_func);
+ return new ThreadObject_Win32(proc, param);
}
/* static */ ThreadObject* ThreadObject::AttachCurrent()