Re: Question on C++ Thread Class and inheritance/polymorphism withPOSIX pthread

Chris M. Thomasson wrote:

>
"Ian Collins" <ia******@hotmail.comwrote in message
news:6m*************@mid.individual.net...
>alexroat wrote:

>>private:
static void * gate(void *);//access point for pthread_create

This should be an extern "C" linkage function, not a static member.

[...]

Yes. Humm... Well, FWIW, I guess one can take advantage of compiler
specific extensions here. It's a dirty thing, but I think it would work.
Something like:

#if defined(_MSC_VER)
# define DECLSPEC_CDECL __cdecl
#elif defined(__GNUC__)
# define DECLSPEC_CDECL __attribute__((cdecl))
#else
# error MSVC or GCC REQUIRED!!!!! ;^(...
#endif

Why bother with all that nonsense when there is a standard solution?

--
Ian Collins

Oct 27 '08 #1

Subscribe Post Reply

1798

Chris M. Thomasson

"Ian Collins" <ia******@hotmail.comwrote in message
news:6m*************@mid.individual.net...

Chris M. Thomasson wrote:
>>
"Ian Collins" <ia******@hotmail.comwrote in message
news:6m*************@mid.individual.net...
>>alexroat wrote:

>>>private:
static void * gate(void *);//access point for pthread_create

This should be an extern "C" linkage function, not a static member.

[...]

Yes. Humm... Well, FWIW, I guess one can take advantage of compiler
specific extensions here. It's a dirty thing, but I think it would work.
Something like:

#if defined(_MSC_VER)
# define DECLSPEC_CDECL __cdecl
#elif defined(__GNUC__)
# define DECLSPEC_CDECL __attribute__((cdecl))
#else
# error MSVC or GCC REQUIRED!!!!! ;^(...
#endif

Why bother with all that nonsense when there is a standard solution?

Agreed. However, using the non-standard compiler specific hack can eliminate
the "need" to use a base-class for the thread class. The extern "C"
free-function has no idea what type what will be passed to it. This is not
the case for the hack version...

Oct 28 '08 #2

by: Tseng, Ling-hua | last post by:

As the comments of the following C++ code, I got the ambiguous error in the specialized class " PThreadTimer<void *(*)(void *)> ". I performed the virtual inheritance mechanism on its base classes...

C / C++

Class Pointer

by: David A. Osborn | last post by:

I have a set of classes that each have an enumeration in them, and based on dynamic input I need to access a different enumeration. For example Three classes Class_A, Class_B, and Class_C that...

Visual Basic .NET

VB.net Thread Permissions problem?

by: hecklar | last post by:

I'm having a problem with threading (permissions?) in a VB.net Windows application (background service). I'm trying to write an application that processes files, launching a new thread for each...

Visual Basic .NET

what's the difference between type struct and type class exactly?

by: Martin Jørgensen | last post by:

Hi, Consider this code: --- beginning of code --- #include <iostream> using namespace std; class Child{ public:

C / C++

Language improvement: Add scope to class member fields

by: WXS | last post by:

Vote for this idea if you like it here: http://lab.msdn.microsoft.com/productfeedback/viewfeedback.aspx?feedbackid=5fee280d-085e-4fe2-af35-254fbbe96ee9...

C# / C Sharp

C++ Thread Class

by: jayesah | last post by:

Hi All, I am writting a Thread class with using pthread library. I have some problem in saving thread function type and argument type. How to make Thread class generic ? /* This is my global...

C / C++

Generic type converter class. Cant call static method of type T.

by: Steve Richter | last post by:

in a generic class, can I code the class so that I can call a static method of the generic class T? In the ConvertFrom method of the generic TypeConvert class I want to write, I have a call to...

C# / C Sharp

Re: Question on C++ Thread Class and inheritance/polymorphism withPOSIX pthread

by: JoelKatz | last post by:

On Oct 27, 10:55 am, alexroat <alexr...@gmail.comwrote: Really? What do you get with this code: #include <stdio.h> #include <pthread.h> class Thread {

C / C++

Re: Question on C++ Thread Class and inheritance/polymorphism with POSIX pthread

by: Chris M. Thomasson | last post by:

FWIW, here is a quick example (in the form of a fully compliable program with error checking omitted) of how I use POSIX threads within a C++ environment:...

C / C++

Easy Steps to Fix "Canon Printer Won't Connect to WiFi Network"

by: taylorcarr | last post by:

A Canon printer is a smart device known for being advanced, efficient, and reliable. It is designed for home, office, and hybrid workspace use and can also be used for a variety of purposes. However,...

General

How to turn on java script in a villaon keypad mobile phone

by: Charles Arthur | last post by:

How do i turn on java script on a villaon, callus and itel keypad mobile phone

Java

Batch import of multiple excel files into the database

by: ryjfgjl | last post by:

If we have dozens or hundreds of excel to import into the database, if we use the excel import function provided by database editors such as navicat, it will be extremely tedious and time-consuming...

Data Management

Merging data from multiple Excel files

by: ryjfgjl | last post by:

In our work, we often receive Excel tables with data in the same format. If we want to analyze these data, it can be difficult to analyze them because the data is spread across multiple Excel files...

Data Management

Navigating the Data Structures and Algorithms (DSA)

by: BarryA | last post by:

What are the essential steps and strategies outlined in the Data Structures and Algorithms (DSA) roadmap for aspiring data scientists? How can individuals effectively utilize this roadmap to progress...

Algorithms / Advanced Math

Changing the language in Windows 10

by: Hystou | last post by:

Most computers default to English, but sometimes we require a different language, especially when relocating. Forgot to request a specific language before your computer shipped? No problem! You can...

Windows Server

Problem With Comparison Operator <=> in G++

by: Oralloy | last post by:

Hello folks, I am unable to find appropriate documentation on the type promotion of bit-fields when using the generalised comparison operator "<=>". The problem is that using the GNU compilers,...

C / C++

Maximizing Business Potential: The Nexus of Website Design and Digital Marketing

by: jinu1996 | last post by:

In today's digital age, having a compelling online presence is paramount for businesses aiming to thrive in a competitive landscape. At the heart of this digital strategy lies an intricately woven...

Online Marketing

The easy way to turn off automatic updates for Windows 10/11

by: Hystou | last post by:

Overview: Windows 11 and 10 have less user interface control over operating system update behaviour than previous versions of Windows. In Windows 11 and 10, there is no way to turn off the Windows...

Windows Server

Re: Question on C++ Thread Class and inheritance/polymorphism withPOSIX pthread

Similar topics