1 files changed, 72 insertions, 0 deletions
diff --git a/src/process_group.c b/src/process_group.c
new file mode 100644
index 0000000..b8b1155
--- /dev/null
+++ b/src/process_group.c
@@ -0,0 +1,72 @@
+#include <stdio.h>
+#include <string.h>
+#include <stdlib.h>
+#include <limits.h>
+#include "process_group.h"
+#include "list.h"
+
+int init_process_monitor(struct process_monitor *monitor, int target_pid, int ignore_children)
+{
+	//hashtable initialization
+	memset(&monitor->proctable, 0, sizeof(monitor->proctable));
+	monitor->target_pid = target_pid;
+	monitor->ignore_children = ignore_children;
+	return 0;
+}
+
+struct list* get_process_list(struct process_monitor *monitor)
+{
+	struct process_iterator it;
+	struct process process;
+	init_process_iterator(&it);
+	while (read_next_process(&it, &process) != -1)
+	{
+		if (monitor->ignore_children && process.pid != monitor->target_pid) continue;
+		printf("Read process %d\n", process.pid);
+		printf("Parent %d\n", process.ppid);
+		printf("Starttime %d\n", process.starttime);
+		printf("CPU time %d\n", process.cputime);
+
+		int hashkey = pid_hashfn(process.pid + process.starttime);
+		if (monitor->proctable[hashkey] == NULL)
+		{
+
+			if (is_ancestor(pid, ppid))
+			struct process *ancestor = NULL;
+			while((ancestor=seek_process(f, ppid))==NULL) {
+				ppid = getppid_of(ppid);
+			}
+
+
+			//empty bucket
+			monitor->proctable[hashkey] = malloc(sizeof(struct list));
+			struct process *new_process = malloc(sizeof(struct process));
+			memcpy(new_process, &process, sizeof(struct process));
+			init_list(monitor->proctable[hashkey], 4);
+			add_elem(monitor->proctable[hashkey], new_process);
+		}
+		else
+		{
+
+		}
+	}
+	close_process_iterator(&it);
+
+	return NULL;
+}
+
+int close_process_monitor(struct process_monitor *monitor)
+{
+	int i;
+	int size = sizeof(monitor->proctable) / sizeof(struct process*);
+	for (i=0; i<size; i++) {
+		if (monitor->proctable[i] != NULL) {
+			//free() history for each process
+			destroy_list(monitor->proctable[i]);
+			free(monitor->proctable[i]);
+			monitor->proctable[i] = NULL;
+		}
+	}
+	monitor->target_pid = 0;
+	return 0;
+}
+\ No newline at end of file