01-13-2006
oops sorry, I hadnt uploaded the correct program, on the same page look for thread.C
hope this helps
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Here is simple code for multithreading in POSIX:
void* simplethread(void* arg)
{
printf("Hello World\n");
}
int main(void)
{
pthread_t id;
pthread_create(&id, NULL, simplethread, NULL);
return 0;
}
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2. Programming
how to do with that?
after cc -o xxxx xxxx.c
ld:
Unresolved:
_pthread_create
_pthread_deteach
_pthread_exit
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3. Programming
Hello
My problem goes like this:
I have used Pthread_create, and I have tryed to create 2 proccess but nothing happens! It does not even matter what the function im trying to create do. It is if im trying to activate an empty function. This is my code.
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Im trying to run an application i compiled (iperf) and i get an error telling me that it cant create the pthread. when i ran the ./configuration one of the things it checked was for pthreads which came back ok.
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5. Programming
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6. Programming
Hi guys.
H was learning posix threads in C with anjuta IDE. it gives me
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7. Programming
The prototype for pthread_create function is like this:-
int pthread_create(pthread_t *thread,pthread_attr_t *attr,void *(*start routine),void *arg);
Q.1 .Why the return type of the start_routine must be void*??
Q.2. Why should we pass arg by converting into void * only ??
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Hi,
I'm trying to do my homework assignment but I am having trouble using the pthread_create fucntion.
Here is my code________________
//Alicia Johnson
//sum_pid program
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9. Programming
Suppose I have a simple program main() with a global varibale int x=0.
int x = 0;
main()
{
print("%d\n",x);
}
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MKSTR(1) BSD General Commands Manual MKSTR(1)
NAME
mkstr -- create an error message file by massaging C source
SYNOPSIS
mkstr [-] messagefile prefix file ...
DESCRIPTION
mkstr creates files containing error messages extracted from C source, and restructures the same C source, to use the created error message
file. The intent of mkstr was to reduce the size of large programs and reduce swapping (see BUGS section below).
mkstr processes each of the specified files, placing a restructured version of the input in a file whose name consists of the specified
prefix and the original name. A typical usage of mkstr is
mkstr pistrings xx *.c
This command causes all the error messages from the C source files in the current directory to be placed in the file pistrings and restruc-
tured copies of the sources to be placed in files whose names are prefixed with xx.
Options:
- Error messages are placed at the end of the specified message file for recompiling part of a large mkstr ed program.
mkstr finds error messages in the source by searching for the string `error("' in the input stream. Each time it occurs, the C string start-
ing at the '"' is stored in the message file followed by a null character and a new-line character; The new source is restructured with
lseek(2) pointers into the error message file for retrieval.
char efilname = "/usr/lib/pi_strings";
int efil = -1;
error(a1, a2, a3, a4)
{
char buf[256];
if (efil < 0) {
efil = open(efilname, 0);
if (efil < 0) {
oops:
perror(efilname);
exit 1 ;
}
}
if (lseek(efil, a1, 0) < 0 || read(efil, buf, 256) <= 0)
goto oops;
printf(buf, a2, a3, a4);
}
SEE ALSO
xstr(1), lseek(2)
HISTORY
mkstr appeared in 3.0BSD.
BUGS
mkstr was intended for the limited architecture of the PDP-11 family. Very few programs actually use it. It is not an efficient method, the
error messages should be stored in the program text.
BSD
June 6, 1993 BSD