Given that Apple's Foundation does not support getting NSRunLoop from
CFRunLoopRef, Cocotron designed CFRunLoop using toll-free bridging from
NSRunLoop and GNUstep have a NSRunLoopFromCFRunLoop() (and GNUstep have some
some NSRunLoop extensions allowing implementing this mess without fussing
Why not use straight C functions?
Sent from my iPad
On Sep 13, 2014, at 20:45, Trygve Inda cocoa...@xericdesign.com wrote:
I have a project that involves several different targets.
Included in all this is a set of related utility methods that need to be
used by different sections of the
I think you can embed code from BSD diff in your program. That is plain C and
you just need to call it using your Objective-C code.
Alternatively you can look into the implementation of BSD diff or GNU diffutils
and rewrite it using Objective-C or Swift for your project.
Sent from my iPad
On
You can emulate this by adding up time differences between rendering frames.
When the framerate-driven accumulator reaches a certain value fire your action,
and accumulate only when conditions are met.
Sent from my iPad
On Jul 2, 2014, at 02:21, William Squires wsqui...@satx.rr.com wrote:
Something like this:
id cell = button;
for(; cell ![cell isKindOfClass:[UITableViewCell class]]; cell = [cell
superview]);
When this loop exits you get either the cell or nil indicating that the button
is not inside a cell.
Sent from my iPhone
On Jun 26, 2014, at 7:18, Quincey Morris
Yes. However you may want to use code that looked better. My code is a little
bit obfuscated.
Sent from my iPhone
On Jun 26, 2014, at 7:46, Rick Mann rm...@latencyzero.com wrote:
Yeah, maybe that's not an unreasonable way to do it. Thanks.
On Jun 25, 2014, at 16:40 , ChanMaxthon xcvi
I believe this involves Cocoa Bindings. I used to load lots of text into iOS
app using Storyboards and it worked smoothly.
Sent from my iPhone
On Jun 12, 2014, at 6:53, Seth Willits sli...@araelium.com wrote:
I have two sample projects: one works fine, one does not. Both read a large
Bindings or not, somebody is listening to the text view when created in xib.
That makes some significant dispatching overhead.
Sent from my iPhone
On Jun 12, 2014, at 8:08, Seth Willits sli...@araelium.com wrote:
On Jun 11, 2014, at 5:02 PM, ChanMaxthon xcvi...@me.com wrote:
I believe
Is editing involved? If not I would render it into HTML and let WebKit render
it.
Sent from my iPhone
On Jun 12, 2014, at 8:41, Seth Willits sli...@araelium.com wrote:
On Jun 11, 2014, at 5:11 PM, ChanMaxthon xcvi...@me.com wrote:
Bindings or not, somebody is listening to the text view
so I didn't have to mess around with
it.
On 15 May, 2014, at 7:46 pm, ChanMaxthon xcvi...@me.com wrote:
Eh screw the OS X/iOS crypto libraries... I would just embed my own copy of
OpenSSL or GNUTLS myself. (My toolkit library have already included GNU MP,
the library GNUTLS is based
Strings does not have CGColor methods so it is not caught. Try break on
[NSObject doesNotRecognizeSelector:]
Sent from my iPhone
On May 16, 2014, at 4:01 PM, Torsten Curdt tcu...@vafer.org wrote:
I am seeing a crash in an iOS app and while I can reproduce it I am
still struggling to find
If you wish to follow UNIX standards, store generated files in a sub directory
in /var/lib (global files) or dot-files in user home directory. NeXTSTEP use
/Library/Application Support for globals and ~/Library/Application Support for
user-specific.
Sent from my iPhone
On May 16, 2014, at
Keychain is okay, I just cannot bear the crypto libraries.
Sent from my iPhone
On May 17, 2014, at 1:08 AM, Jens Alfke j...@mooseyard.com wrote:
On May 16, 2014, at 12:37 AM, ChanMaxthon xcvi...@me.com wrote:
I got fed up by Apple already and found a little BSD-licensed CXX crypto
I believe the intention of the slider is that it won't drop you to stack frames
that does not have your code (and show you with assembler) but it can be
troublesome.
When LLDB break your program at signal your program could have already
progressed past where the exception happened and already
Eh screw the OS X/iOS crypto libraries... I would just embed my own copy of
OpenSSL or GNUTLS myself. (My toolkit library have already included GNU MP, the
library GNUTLS is based on) Or if I really have the time reimplement RSA
algorithms and key generation using Acceleration.framework
Sent
* Correction: GNUTLS depends on GNU MP which is already included.
Sent from my iPad
On May 15, 2014, at 7:46 PM, ChanMaxthon xcvi...@me.com wrote:
Eh screw the OS X/iOS crypto libraries... I would just embed my own copy of
OpenSSL or GNUTLS myself. (My toolkit library have already included
There are many good container formats for asymmetric keys and public keys can
be handled in plain.
Good formats to use: Certificate Signing Request, self-signed certificate, PGP,
some form of archive formats can also be used like tar(1) or ar(1).
You can also integrate this key exchange into
Rounding stuff up, there are two broadly-implemented systems: PKCS and PGP.
If you are using PKCS system, you need to operate a CA that your app trusts.
Your server issue issue new keys as certificates signed by your CA. Clients
provide keys using CSR which is confirmed when signed by the
I have caught two too-much-bounce alerts and it started to smell like
deliberate attackers.
Sent from my iPhone
On May 12, 2014, at 8:41 AM, Quincey Morris
quinceymor...@rivergatesoftware.com wrote:
On May 11, 2014, at 17:30 , William Squires wsqui...@satx.rr.com wrote:
I'm getting a
If you are targeting at remote procedure calling across Internet I have a
library CGIJSONObjects that wraps REST-style JSON-based HTTP remote calls into
objects. Server side language is not important. I used it to interface a server
using Java servlets.
Sent from my iPhone
On May 1, 2014, at
I am not sure if Apple libraries COW but I know GNUstep uses COW on their
NSData, NSDictionary and NSArray (and that and a different NSObject layout in
their implementation of some classes are the reason why their libraries are
faster than Apple's)
Simplest way is to copy NSData sand watch for
What object are you talking about? NSData have -bytes method and others would
require you drop to CF code (or probably impossible)
Check for methods with return internal pointer attribute or fast iteration
protocols.
If you need fine tuned control over that you may need to drop to C or use
You know you can mmap(2) COW pages if kernel or hardware supports it right?
GNUstep used COW implemented by sharing pointers (no kernel or hardware support
needed) which is obvious, Apple can implement COW by using COW pages (kernel or
hardware supported)
COW pages cannot be told apart from
I think that tight loop may be one thing, the appropriate scoping of variables
is another. When writing loops I tend to use lots of local variables that is
alloc/init'd and that will give clang an extreme good idea about what is going
on when the loop folds and variables all go out of scope. I
Since you are interfacing with database maybe you can use a little transaction
interface which is its own thread and run loop. That may be able to cut down
your amount of syscalls. That is, not using GCD but old fashioned NSThread,
NSRunLoop (and CFRunLoop) and NSCondition.
OS X implemented
You can write your own dispatch queue by using a CFRunLoopSource and add an
NSCondition to it when you need it to be synchronous (implementing
dispatch_sync)
Sent from my iPad
On Apr 27, 2014, at 4:55 AM, Quincey Morris
quinceymor...@rivergatesoftware.com wrote:
On Apr 26, 2014, at 12:02
on HTTP.
Sent from my iPad
On Apr 27, 2014, at 5:36 AM, Jens Alfke j...@mooseyard.com wrote:
On Apr 26, 2014, at 2:10 PM, ChanMaxthon xcvi...@me.com wrote:
Since you are interfacing with database maybe you can use a little
transaction interface which is its own thread and run loop
, Jens Alfke j...@mooseyard.com wrote:
On Apr 26, 2014, at 2:10 PM, ChanMaxthon xcvi...@me.com wrote:
Since you are interfacing with database maybe you can use a little
transaction interface which is its own thread and run loop. That may be able
to cut down your amount of syscalls
To keep your NSSet you can store it as an array. There are conversion methods
like -[NSSet array] and +[NSSet setWithContentsOfArray:].
Also, you can try to determine if your code is running on SSD. SSD can be
iterated in parallel and GCD will help a little when parallelizing the search.
Sent
Another wild thought, how about drop one layer lower to POSIX and use a little
bit of OpenCL? For every directory with content paths C[0..i] and the list of
restricted paths R[0..j] construct a matrix (using OpenCL) M[0..i, 0..j] where
M[i, j]=strcmp(C[i], R[j]) (strcmp() itself can be OpenCL
The SQLite DB thing is just like a tar archive, and if you dare to you can even
include a cramfs driver in your code and consolidate all your resources into
one optionally encrypted cramfs image. Every file archiving method that allows
in-memory expansion works, and my personal recommendation
My personal preference is GCD dispatching from your graphics rendering loop.
Sent from my iPhone
On 2013年12月14日, at 5:57, Alex Hall mehg...@gmail.com wrote:
Hello list,
I am attempting to use OpenAL to move a sound source around. To do so
smoothly, though, will require a loop, so I can
You can check what type int32_t (or uint32_t) is typedef'd to and use that
corresponding type on your intended platform. Sort of like:
- (int32_t) int32Value
{
if (!strcmp(@encode(int32_t), @encode(int))
return [self intValue];
else if (!strcmp(@encode(int32_t), @encode(long))
I am just making an example and a point - check what (u)int32_t or (u)int64_t
is typedef'd to and return that type.
Sent from my iPhone
On 2013年12月2日, at 18:27, Kyle Sluder k...@ksluder.com wrote:
On Dec 2, 2013, at 1:54 AM, ChanMaxthon xcvi...@me.com wrote:
You can check what type int32_t
.
Sent from my iPhone
On 2013年12月2日, at 18:27, Kyle Sluder k...@ksluder.com wrote:
On Dec 2, 2013, at 1:54 AM, ChanMaxthon xcvi...@me.com wrote:
You can check what type int32_t (or uint32_t) is typedef'd to and use that
corresponding type on your intended platform. Sort of like:
- (int32_t
What is wrong with a good ol' SHA-512?
Sent from my iPhone
On 2013年12月2日, at 21:50, Gerriet M. Denkmann gerr...@mdenkmann.de wrote:
Assuming that a typical image has 243.3 k Bytes, or 1 993 221 bits. And that
a hash has 64 bits.
Then there are 2^1 993 221 different images, and 2^64 hash
, ChanMaxthon xcvi...@me.com wrote:
What is wrong with a good ol' SHA-512?
Way too slow.
―Graham
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:25 pm, ChanMaxthon xcvi...@me.com wrote:
What is wrong with a good ol' SHA-512?
Way too slow.
—Graham
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Just put a set of braces after every case: and it should be okay. A set of
braces here actually sets up a mini stack frame that makes ARC work.
Sent from my iPhone
On 2013年10月22日, at 15:41, Gerriet M. Denkmann gerr...@mdenkmann.de wrote:
Converting to Arc (Xcode 5.0).
This works fine
I suggest against NSInvocation. I will just throw in a direct call to
objc_msgSend.
Sent from my iPhone
On 2013年10月22日, at 15:33, Igor Elland igor.ell...@me.com wrote:
This certainly helps: at least I get a clean compile.
But telling the compiler about the type of selector to expect would be
This problem comes from C variable scopes regarding braces. For most cases it
is just fine but for switch() all cases are in the same scope, jumping around.
ARC inserts code at beginning and end of scopes (mini stack frames here) so if
a new ARC variable is defined in switch() it gets confused.
Giving a mini performance boost. NSInvocation is utterly slow (multiple memory
allocations asking for syscalls, and a chain of function calls including at
least two objc_msgSends to invoke a method.) but good for IMP caching
performSelector methods are slightly slower than direct calls since
...@mdenkmann.de wrote:
On 22 Oct 2013, at 14:48, ChanMaxthon xcvi...@me.com wrote:
Just put a set of braces after every case: and it should be okay. A set of
braces here actually sets up a mini stack frame that makes ARC work.
非常感谢
Works perfectly now.
(I still would like to know
ARC have more insertion points - beginning of scope retaining all passed-in
arguments or used objects, call point creating objects, and end of scope
(auto)releasing objects. A missed retain causes race issues, a missed
(auto)release leaks objects and an extra release makes dangling pointers,
, ChanMaxthon xcvi...@me.com wrote:
ARC have more insertion points - beginning of scope retaining all passed-in
arguments or used objects, call point creating objects, and end of scope
(auto)releasing objects.
OK, and it's the ones at call points that cause problems in switch cases,
correct
Can you just manually retain it before cleaning, and manually release it
afterwards? You can use CFRetain()/CFRelease() for that, or use runtime
functions objc_retain() and objc_release(). The latter two is not documented by
Apple per sé, but it is documented by LLVM as requirements of ARC.
Despite NSTask is missing in runtime, your day can still be saved by:
1) You can use the NSTask implementation from GNUstep, an LGPL-licensed library.
2) You can still use classic UNIX function calls to pipe/fork/dup2/exec
Sent from my iPhone
On 2013年10月22日, at 9:37, Daniel DeCovnick
Try add this line:
extern void foo(void);
Sent from my iPhone
On 2013年10月19日, at 1:21, Charles Srstka cocoa...@charlessoft.com wrote:
On Oct 18, 2013, at 6:15 AM, Dmitry Markman dmark...@me.com wrote:
I don't thinks strip remove info used by dynamic linker
Thus dlsym should work
As
I think I know why it did not work: strip command can remove debug symbols, or
unused functions as well.
Sent from my iPhone
On 2013年10月19日, at 7:53, Charles Srstka cocoa...@charlessoft.com wrote:
On Oct 18, 2013, at 6:42 PM, ChanMaxthon xcvi...@me.com wrote:
Try add this line:
extern
need to be loaded by another process, usually are.
Charles
On Oct 17, 2013, at 10:51 PM, ChanMaxthon xcvi...@me.com wrote:
Then, problem, how did Core Foundation bundle loading work?
Sent from my iPhone
On 2013年10月18日, at 11:49, Charles Srstka cocoa...@charlessoft.com wrote:
On Oct
Seem to me that you are considering making an enterprise single sign-on portal.
Of course you can combine everything into a single app, but a more graceful
solution can exist.
Just to correct a misunderstanding, iOS dyld can load dynamic libraries if
carried as part of the application bundle
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