03-07-2011
the last arg of pthread_create is a void * - meaning it is the address of any kind of variable.
Depending on how file1 is declared your thread code has to turn a void * into the correct datatype. There are a lot of problems if the data in "file1" is subsequently written to again.
10 More Discussions You Might Find Interesting
1. Programming
Can someone point to a link where I can get good info about pthread?
thanx.. :) (1 Reply)
Discussion started by: jyotipg
1 Replies
2. Programming
consider if the thread routine returns any void pointer while calling pthread_join,
the thread resources are freed and the thread will be terminated when the main thread is exit ,that is my assumption whether it is true
how do we find whether the thread is alive or terminated
how do we find... (0 Replies)
Discussion started by: MKSRaja
0 Replies
3. Programming
hallo 2 al
can anyone pls tell me where and how can i find and install the pthread.h lib ?
thx :cool: (2 Replies)
Discussion started by: XinU*
2 Replies
4. UNIX for Dummies Questions & Answers
When I use some of the pthread functions: pthread_join, pthread_exit they work perfect. But when I look in the pthread.h file I can't seem to find any implementations of the functions...where are they hiding?? (2 Replies)
Discussion started by: bigblop
2 Replies
5. Solaris
Hi all!
I am working on unix systems.I am programming in c.
I have got some problems with pthread.when I use pthread_create to creat a thread it says:
(.text+0x3a): undefined reference to `pthread_create'.
same is the problm with pthread_kill.
Can anyone help me out here.
Thanks.
vij. (2 Replies)
Discussion started by: vijlak
2 Replies
6. UNIX for Dummies Questions & Answers
Hello,
I run my pthread code on Linux with 4 processors. However, the speed up is only 2 times.
The code is about solving equation (G+s(i)C)z(i)=B*us(i), i=1,...,n. Here G,C are m*m matrix, B*us(i) is a m*1 vector and s(i) are n different numbers. I need to solve the equation n times to... (2 Replies)
Discussion started by: mgig
2 Replies
7. Programming
problem solved
edited, sorry (1 Reply)
Discussion started by: joey
1 Replies
8. UNIX for Advanced & Expert Users
I am so confused about the user threads and kernel threads.Suppose I created a thread using pthread create call in Linux ,whether it will be a user thread or kernel thread.If it user thread,then how its map to kernel thread.
I heard about the M:1,M:N,1:1 mapping methods.Which method linux is... (1 Reply)
Discussion started by: sujith4u87
1 Replies
9. Ubuntu
Hi all,
I wrote some code in c, using pthread (I configured the linker and compiler in eclipse IDE first).
#include <pthread.h>
#include "starter.h"
#include "UI.h"
Page* MM;
Page* Disk;
PCB* all_pcb_array;
void* display_prompt(void *id){
printf("Hello111\n");
return... (1 Reply)
Discussion started by: elad2109
1 Replies
10. Programming
I have written a C code and when i compile it there are 0 warnings and 0 errors, but when i try to run apears:
./client: symbol lookup error: ./client: undefined symbol: pthread_create, version GLIBC_2.1
the part of the code where i have the pthread_creat is:
int serverConection(int... (5 Replies)
Discussion started by: SuperStout
5 Replies
XZDIFF(1) XZ Utils XZDIFF(1)
NAME
xzcmp, xzdiff, lzcmp, lzdiff - compare compressed files
SYNOPSIS
xzcmp [cmp_options] file1 [file2]
xzdiff [diff_options] file1 [file2]
lzcmp [cmp_options] file1 [file2]
lzdiff [diff_options] file1 [file2]
DESCRIPTION
xzcmp and xdiff invoke cmp(1) or diff(1) on files compressed with xz(1), lzma(1), gzip(1), or bzip2(1). All options specified are passed
directly to cmp or diff. If only one file is specified, then the files compared are file1 (which must have a suffix of a supported com-
pression format) and file1 from which the compression format suffix has been stripped. If two files are specified, then they are uncom-
pressed if necessary and fed to cmp(1) or diff(1). The exit status from cmp or diff is preserved.
The names lzcmp and lzdiff are provided for backward compatibility with LZMA Utils.
SEE ALSO
cmp(1), diff(1), xz(1), gzip(1), bzip2(1), zdiff(1)
BUGS
Messages from the cmp(1) or diff(1) programs refer to temporary filenames instead of those specified.
Tukaani 2009-07-05 XZDIFF(1)