Search Results

Hi,

I would like to create a shared object ( .so).

This shared object

1. uses the functions from a library.
2. Also it should be able to use the global variable in an app

To achieve...

Hi All,

To avoid race condition, instead of using mutex, semaphore, spinlock etc.... Is there any other mechanism by which we can avoid race condition in an multi-threading environment.

-Thanks

Hi All,

Is it possible to multiply a number by two without using Arithmetic and Shift operators?

_Thanks

Hi All,

I want to ping 1500 bytes of data from a pc to another pc in the network. What is command used for the same?

Thanks

Hi All,

My main intension of is to convert the Hexstring stored in a char* into hex and then prefixing it with "0x" and suffix it with ','

This has to be done for all the hexstring char* is...

fine. thank you.

#include <stdio.h>

#pragma pack(1)

main()
{

char begin;
struct ptr
{
int a;
char b;
int *p;
}abc;
char end;

printf("Using sizeof operator = %u\n",...

Thank you pshaikh. it exactly gives the sizeof the structure. While executing your first sample piece of code... it is mostly &begin is greater than &end. Here all the local variables begin, end and...

Hi All,

is it possible to find out the size of an array of structures ( without using 'sizeof' operator). The condition is we have the array of structure instant but we are not aware of the...

Hi All,

In our project i could see .make files and some .mak file.
The build rules and the related commands been written in make file.
All the project directory specific thing been written in...

Thank you Jim
I understand the rules of this forum. And this is not homework.
I have difficulty in understanding the Hashing algorithms being used in that.(Zlib)
i was googling for Dictionary...

Hi All,

i was browsing thru' the opensource glib(deflate/inflate) algorithms..
which i am supposed to implement. I came across Dictionary usage (Hash tables), LZ77 algorithm and Huffman coding...

Hi,

Thanks...

The problem is solved
i have put "/" before the message queue name even while reading from the queue.. and the oflag as O_RDONLY for reading...
now its working fine...
...

Hi,

Am creating a msgqueue using mq_open
</code>
main()
{
struct mq_attr attr; /* message queue attributes structure */
memset(&_attr,0,sizeof(struct mq_attr));
...

hi guys,

I was complicating by using mutex which is not needed at all..
as message queue read and write are atomic...

Thanks

Hi porter,

If pthread_mutex or pthread_cond cannot be used across process then what is the use of the following.......

pthread_mutexattr_setpshared(&mutatr, PTHREAD_PROCESS_SHARED)
...

Hi blowtorch,

Thanks a lot..
I agree with you... when it is only message queue and message queue details we can manage with file...
here in this scenario as i have given the structures of mutex...

Hi blowtorch n Neo
Thank you for the reply...



typedef struct cond
{
/* framework mutex structure for condition variable */
mutex_rs * mutexp ;
pthread_cond_t cond;
} cond_var;
...

Am using Posix message queues

Hi,

Am supposed to use message queues to send and receive messages between the processes. when i was working on that i realised that the message qid and the message queue related data should be...

in case of multi-processes, am scared that the processess may occupy more stack/data space which may result in memory crunch..

Hi,

when i tried ulimit -a in my system i got

"stack size (kbytes, -s) 10240"

Am trying to reduce the stack size using setrlimit command using the following program... but am...

Hi,

can somebody advise on a better multiprocess debugger?
I heard with gdb we face lots of problems in multiprocess scenario
currently i am using gdb debugger for a single process multithreaded...

Hi guys,

I could locate the libtcl in /usr/lib


Thanks

Hi,

I used the same command "rpm -qa| grep -i tcl" and it returned tcl-8.4.9-3
so TCL is installed..
Am trying to link the tcl library and include the tcl header files in the make file..
but i...

oops..
am really sorry for my previous reply regarding TCL..
since i was working in windows and connect to Linux server from my m/c i made the mistake of including TCL from C:\ absent mindedly.......