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Thread deadlock fixup

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git-svn-id: svn+ssh://svn.gna.org/svn/gnustep/libs/base/trunk@40033 72102866-910b-0410-8b05-ffd578937521
This commit is contained in:
Richard Frith-MacDonald 2016-07-26 08:20:09 +00:00
parent eb497bf67e
commit 205f26ec86
3 changed files with 44 additions and 11 deletions
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6
ChangeLog
View file

@ -1,3 +1,9 @@
2016-07-26 Richard Frith-Macdonald <rfm@gnu.org>
* Source/Additions/NSObject+GNUstepbase.m: use separate lock to
protect at exit methods ... avoid conflict/deadlock with multithreaded
notification change.
2016-07-18 Larry Campbell <lcampbel@akamai.com>
* Source/NSThread.m: Send notification about becoming multithreaded

13
Source/Additions/GSMime.m
View file

@ -123,6 +123,7 @@ static Class documentClass = 0;
static Class headerClass = 0;
static BOOL oldStyleFolding = NO;
static NSString *text7bitEncoding = @"quoted-printable";
typedef BOOL (*boolIMP)(id, SEL, id);
@ -4500,6 +4501,14 @@ appendString(NSMutableData *m, NSUInteger offset, NSUInteger fold,
*/
@implementation GSMimeDocument
+ (void) setText7bitBase64: (BOOL)aFlag
{
if (YES == aFlag)
text7bitEncoding = @"base64";
else
text7bitEncoding = @"quoted-printable";
}
/*
* Examine xml data to find out the characterset needed to convert from
* binary data to an NSString object.
@ -5776,7 +5785,7 @@ appendString(NSMutableData *m, NSUInteger offset, NSUInteger fold,
if (e != NSASCIIStringEncoding && e != NSUTF7StringEncoding)
#endif
{
v = @"quoted-printable";
v = text7bitEncoding;
}
else
{
@ -6686,7 +6695,7 @@ appendString(NSMutableData *m, NSUInteger offset, NSUInteger fold,
*/
if (YES == want7Bit)
{
encoding = @"quoted-printable";
encoding = text7bitEncoding;
}
enc = [self setHeader: @"Content-Transfer-Encoding"
value: encoding

36
Source/Additions/NSObject+GNUstepBase.m
View file

@ -145,6 +145,20 @@ struct exitLink {
static struct exitLink *exited = 0;
static BOOL enabled = NO;
static BOOL shouldCleanUp = NO;
static NSLock *exitLock = nil;
static inline void setup()
{
if (nil == exitLock)
{
[gnustep_global_lock lock];
if (nil == exitLock)
{
exitLock = [NSLock new];
}
[gnustep_global_lock unlock];
}
}
static void
handleExit()
@ -197,10 +211,11 @@ handleExit()
l->at = anAddress;
l->obj = [*anAddress retain];
l->sel = 0;
[gnustep_global_lock lock];
setup();
[exitLock lock];
l->next = exited;
exited = l;
[gnustep_global_lock unlock];
[exitLock unlock];
return l->obj;
}
@ -212,10 +227,11 @@ handleExit()
l->at = 0;
l->obj = [anObject retain];
l->sel = 0;
[gnustep_global_lock lock];
setup();
[exitLock lock];
l->next = exited;
exited = l;
[gnustep_global_lock unlock];
[exitLock unlock];
return l->obj;
}
@ -247,12 +263,13 @@ handleExit()
return NO; // method not implemented in this class
}
[gnustep_global_lock lock];
setup();
[exitLock lock];
for (l = exited; l != 0; l = l->next)
{
if (l->obj == self && sel_isEqual(l->sel, sel))
{
[gnustep_global_lock unlock];
[exitLock unlock];
return NO; // Already registered
}
}
@ -267,7 +284,7 @@ handleExit()
atexit(handleExit);
enabled = YES;
}
[gnustep_global_lock unlock];
[exitLock unlock];
return YES;
}
@ -275,13 +292,14 @@ handleExit()
{
if (YES == aFlag)
{
[gnustep_global_lock lock];
setup();
[exitLock lock];
if (NO == enabled)
{
atexit(handleExit);
enabled = YES;
}
[gnustep_global_lock unlock];
[exitLock unlock];
shouldCleanUp = YES;
}
else