htop/UsersTable.c

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/*
htop - UsersTable.c
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(C) 2004-2011 Hisham H. Muhammad
Released under the GNU GPLv2, see the COPYING file
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in the source distribution for its full text.
*/
#include "config.h" // IWYU pragma: keep
#include "UsersTable.h"
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#include <pwd.h>
#include <stdbool.h>
#include <stdio.h>
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#include <stdlib.h>
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#include "XUtils.h"
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UsersTable* UsersTable_new() {
UsersTable* this;
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this = xMalloc(sizeof(UsersTable));
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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) {
char* name = Hashtable_get(this->users, uid);
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if (name == NULL) {
const struct passwd* userData = getpwuid(uid);
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if (userData != NULL) {
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name = xStrdup(userData->pw_name);
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Hashtable_put(this->users, uid, name);
}
}
return name;
}
inline void UsersTable_foreach(UsersTable* this, Hashtable_PairFunction f, void* userData) {
Hashtable_foreach(this->users, f, userData);
}