Linux_sys_prog

gluethread/glthreads/main.c

@@ -0,0 +1,87 @@
+#include "glthread.h"
+#include <stdlib.h>
+#include <stdio.h>
+#include <memory.h>
+
+typedef struct emp_ {
+
+    char name[30];
+    unsigned int salary;
+    char designation[30];
+    unsigned int emp_id;
+    glthread_node_t glnode;
+} emp_t; 
+
+void
+print_emp_details(emp_t *emp){
+
+    printf("Employee name = %s\n", emp->name);
+    printf("salary = %u\n", emp->salary);
+    printf("designation = %s\n", emp->designation);
+    printf("emp_id = %u\n", emp->emp_id);
+}
+
+
+int 
+main(int argc, char **argv){
+
+    emp_t *emp1  = calloc(1, sizeof(emp_t));
+    strncpy(emp1->name, "Neha", strlen("Neha"));
+    emp1->salary = 50000;
+    strncpy(emp1->designation, "HR", strlen("HR"));
+    emp1->emp_id = 21;
+    glthread_node_init((&emp1->glnode));
+
+    emp_t *emp2  = calloc(1, sizeof(emp_t));
+    strncpy(emp2->name, "Abhishek", strlen("Abhishek"));
+    emp1->salary = 150000;
+    strncpy(emp2->designation, "SE3", strlen("SE3"));
+    emp2->emp_id = 32;
+    glthread_node_init((&emp2->glnode));
+
+    emp_t *emp3  = calloc(1, sizeof(emp_t));
+    strncpy(emp3->name, "Arun", strlen("Arun"));
+    emp3->salary = 60000;
+    strncpy(emp3->designation, "SE4", strlen("SE4"));
+    emp3->emp_id = 27;
+    glthread_node_init((&emp3->glnode));
+
+
+    /*Now Create a glthread*/
+    glthread_t *emp_list = calloc(1, sizeof(glthread_t));
+    init_glthread(emp_list, offsetof(emp_t, glnode));
+
+    /*Now insert the records in glthread*/
+    glthread_add(emp_list, &emp1->glnode);
+    glthread_add(emp_list, &emp2->glnode);
+    glthread_add(emp_list, &emp3->glnode);
+
+
+    /*Walk over glthread*/
+    emp_t *ptr = NULL;
+    ITERATE_GL_THREADS_BEGIN(emp_list, emp_t, ptr){
+
+        print_emp_details(ptr);
+    } ITERATE_GL_THREADS_ENDS;
+
+    /*Let us remove one record at random*/
+
+    glthread_remove(emp_list, &emp2->glnode);
+    printf("\nprinting again . . . \n");
+
+    ITERATE_GL_THREADS_BEGIN(emp_list, emp_t, ptr){
+
+        print_emp_details(ptr);
+    } ITERATE_GL_THREADS_ENDS;
+
+
+    /*Free all Dynamicall allocations*/
+    ITERATE_GL_THREADS_BEGIN(emp_list, emp_t, ptr){
+        
+         glthread_remove(emp_list, &ptr->glnode);
+         free(ptr);
+    } ITERATE_GL_THREADS_ENDS;
+    free(emp_list);
+
+    return 0;
+}