pthread problem


 
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Operating Systems Linux Ubuntu pthread problem
# 1  
Old 05-22-2010
pthread problem

Hi all,

I wrote some code in c, using pthread (I configured the linker and compiler in eclipse IDE first).

Code:
#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 NULL;
}


int main(int argc, char** argv) {
    printf("Hello\n");
    pthread_t *thread = (pthread_t*) malloc (sizeof(pthread_t));
    pthread_create(thread, NULL, display_prompt, NULL);
    printf("Hello\n");
    return 1;
}

that works fine. However, when I move display_prompt to UI.h
no "Hello111 " output is printed.

anyone know how to solve that?
Elad
# 2  
Old 05-23-2010
Quote:
Originally Posted by elad2109
Hi all,

I wrote some code in c, using pthread (I configured the linker and compiler in eclipse IDE first).

Code:
#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 NULL;
}


int main(int argc, char** argv) {
    printf("Hello\n");
    pthread_t *thread = (pthread_t*) malloc (sizeof(pthread_t));
    pthread_create(thread, NULL, display_prompt, NULL);
    printf("Hello\n");
    return 1;
}

that works fine. However, when I move display_prompt to UI.h
no "Hello111 " output is printed.

anyone know how to solve that?
Elad
Hello,
you mean when you place the declaration of "display_prompt" to UI.h?
Declarations go in header(preprocessor #includes) and definitions go in the main source files by convention.

Regards,
gaurav.
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