htop/UsersTable.c

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2006-03-04 18:16:49 +00:00
/*
htop - UsersTable.c
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(C) 2004-2006 Hisham H. Muhammad
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Released under the GNU GPL, see the COPYING file
in the source distribution for its full text.
*/
#include "UsersTable.h"
#include "Hashtable.h"
#include "String.h"
#include <stdio.h>
#include <strings.h>
#include <pwd.h>
#include <sys/types.h>
#include "debug.h"
#include <assert.h>
/*{
typedef struct UsersTable_ {
Hashtable* users;
} UsersTable;
}*/
UsersTable* UsersTable_new() {
UsersTable* this;
this = malloc(sizeof(UsersTable));
this->users = Hashtable_new(20, true);
return this;
}
void UsersTable_delete(UsersTable* this) {
Hashtable_delete(this->users);
free(this);
}
char* UsersTable_getRef(UsersTable* this, unsigned int uid) {
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char* name = (char*) (Hashtable_get(this->users, uid));
if (name == NULL) {
struct passwd* userData = getpwuid(uid);
if (userData != NULL) {
name = String_copy(userData->pw_name);
Hashtable_put(this->users, uid, name);
}
}
return name;
}
inline int UsersTable_size(UsersTable* this) {
return (Hashtable_size(this->users));
}
inline void UsersTable_foreach(UsersTable* this, Hashtable_PairFunction f, void* userData) {
Hashtable_foreach(this->users, f, userData);
}