I would like to write my own version of pthread_join and some of the other pthread function. Does some know any pages that have som examples of doing this?? (1 Reply)
We had written an application in which we create worker thread.
So the main thread will create the worker thread. After some time
the child thread(Worker thread) will call pthread_exit().
This function was written in try{} and there occured an Exception
and is handled in catch(...)... (0 Replies)
Hello All,
The problem i'm experiencing is with the following code:
#include <pthread.h>
#include <stdio.h>
int main(void)
{
(void) pthread_join(155555, NULL);
printf("done");
return 0;
}
I'm getting on terminal segmentation fault .
System used:... (0 Replies)
how can I find cpu usage memory usage swap usage and
I want to know CPU usage above X% and contiue Y times and memory usage above X % and contiue Y times
my final destination is monitor process
logical volume usage above X % and number of Logical voluage above
can I not to... (3 Replies)
Hi,
I would like to know if the call
of pthread_join( thread,&status) for a thread already created
in main function will free the memory allocated to thread after the pthread_join retruns or should I wait the
termination of main function?
Is there any need to cancel or exit the thread if I... (0 Replies)
Main function creates Thread0 and Thread1 by using pthread_create systemcall.
In Thread0() {
we are calling pthread_exit(0) ;
}
and in Thread1() {
status= pthread_join(tid,NULL);
sprintf(ebuf,"timer6: can't join with thread0, status: %d",status);
Assert(status==0,ebuf);
}
... (4 Replies)
Hi all,
Can you please tell me the command, with which one can know the amount of space a specific directory has used.
df -k . ---> Displays, the amount of space allocated, and used for a directory.
du -k <dir name> - gives me the memory used of all the files inside <dir>
But i... (2 Replies)
Hi,
I am new to multithreaded programming. When creating a thread to run a specific function, does the function need to have a pthread_exit ?
Is pthread_exit analogous to a return in a function? (3 Replies)
Let's say i have 20 users logged on Server. How can I know how much memory percent used each of them is using with system time in each user? (2 Replies)
Discussion started by: roy1912
2 Replies
LEARN ABOUT DEBIAN
trampoline
TRAMPOLINE(3) Library Functions Manual TRAMPOLINE(3)NAME
trampoline - closures as first-class C functions
SYNOPSIS
#include <trampoline.h>
function = alloc_trampoline(address, variable, data);
free_trampoline(function);
is_trampoline(function)
trampoline_address(function)
trampoline_variable(function)
trampoline_data(function)
DESCRIPTION
These functions implement closures as first-class C functions. A closure consists of a regular C function and a piece of data which gets
passed to the C function when the closure is called.
Closures as first-class C functions means that they fit into a function pointer and can be called exactly like any other C function. func-
tion = alloc_trampoline(address, variable, data) allocates a closure. When function gets called, it stores data in the variable variable
and calls the C function at address. The function at address is responsible for fetching data out of variable immediately, before execu-
tion of any other function call.
This is much like gcc's local functions, except that the GNU C local functions have dynamic extent (i.e. are deallocated when the creating
function returns), while trampoline provides functions with indefinite extent: function is only deallocated when free_trampoline(function)
is called.
is_trampoline(function) checks whether the C function function was produced by a call to alloc_trampoline. If this returns true, the argu-
ments given to alloc_trampoline can be retrieved:
trampoline_address(function) returns address,
trampoline_variable(function) returns variable,
trampoline_data(function) returns data.
SEE ALSO gcc(1), varargs(3), callback(3)BUGS
Passing the data through a global variable is not reentrant. Don't call trampoline functions from within signal handlers. This is fixed in
the callback(3) package.
PORTING
The way gcc builds local functions is described in the gcc source, file gcc-2.6.3/config/cpu/cpu.h.
AUTHOR
Bruno Haible <bruno@clisp.org>
ACKNOWLEDGEMENTS
Many ideas were cribbed from the gcc source.
25 October 1997 TRAMPOLINE(3)