X-Git-Url: https://git.verplant.org/?a=blobdiff_plain;f=src%2Fusers.c;h=7df06c2baa41fe382ab536a25b7e2468dabf8b12;hb=63cbff115ba03717e81087d1419fc07c24d205c2;hp=31c936c84d9ab018cb23756c74358677d2711d73;hpb=a82ff6683f0011a498b4fc0947833d2e28925b76;p=collectd.git diff --git a/src/users.c b/src/users.c index 31c936c8..7df06c2b 100644 --- a/src/users.c +++ b/src/users.c @@ -1,11 +1,10 @@ /** * collectd - src/users.c - * Copyright (C) 2005 Sebastian Harl + * Copyright (C) 2005-2007 Sebastian Harl * * This program is free software; you can redistribute it and/or modify it * under the terms of the GNU General Public License as published by the - * Free Software Foundation; either version 2 of the License, or (at your - * option) any later version. + * Free Software Foundation; only version 2 of the license is applicable. * * This program is distributed in the hope that it will be useful, but * WITHOUT ANY WARRANTY; without even the implied warranty of @@ -20,104 +19,88 @@ * Sebastian Harl **/ -#include "users.h" - -#if COLLECT_USERS -#define MODULE_NAME "users" - -#include "plugin.h" +#include "collectd.h" #include "common.h" +#include "plugin.h" -#ifdef HAVE_UTMPX_H -#include -#elif defined(HAVE_UTMP_H) -#include -#endif - -static char *rrd_file = "users.rrd"; +#if HAVE_UTMPX_H +# include +#else /* !HAVE_UTMPX_H */ +# if HAVE_UTMP_H +# include +# endif /* HAVE_UTMP_H */ +#endif /* HAVE_UTMPX_H */ -static char *ds_def[] = { - "DS:users:GAUGE:25:0:65535", - NULL -}; -static int ds_num = 1; +#define MODULE_NAME "users" -void users_init(void) -{ - /* we have nothing to do here :-) */ - return; -} +#if HAVE_GETUTXENT || HAVE_GETUTENT +# define USERS_HAVE_READ 1 +#else +# define USERS_HAVE_READ 0 +#endif -void users_read(void) +#if USERS_HAVE_READ +static void users_submit (gauge_t value) { -#ifdef HAVE_GETUTXENT - unsigned int users = 0; - struct utmpx *entry = NULL; - - /* according to the *utent(3) man page none of the functions sets errno in - * case of an error, so we cannot do any error-checking here */ - setutxent(); + value_t values[1]; + value_list_t vl = VALUE_LIST_INIT; - while (NULL != (entry = getutxent())) - if (USER_PROCESS == entry->ut_type) - ++users; - endutxent(); + values[0].gauge = value; - users_submit(users); -/* #endif HAVE_GETUTXENT */ + vl.values = values; + vl.values_len = 1; + vl.time = time (NULL); + strcpy (vl.host, hostname_g); + strcpy (vl.plugin, "users"); -#elif defined(HAVE_GETUTENT) - unsigned int users = 0; - struct utmp *entry = NULL; + plugin_dispatch_values ("users", &vl); +} /* void users_submit */ - /* according to the *utent(3) man page none of the functions sets errno in - * case of an error, so we cannot do any error-checking here */ - setutent(); - - while (NULL != (entry = getutent())) - if (USER_PROCESS == entry->ut_type) - ++users; - endutent(); - - users_submit(users); -#endif - - return; -} - -/* I don't like this temporary macro definition - well it's used everywhere - * else in the collectd-sources, so I will just stick with it... */ -#define BUFSIZE 256 -void users_submit(users) - unsigned int users; -{ - char buf[BUFSIZE] = ""; - - if (snprintf(buf, BUFSIZE, "%u:%u", - (unsigned int)curtime, - users) >= BUFSIZE) - return; - - plugin_submit(MODULE_NAME, NULL, buf); - return; -} -#undef BUFSIZE - -void users_write(host, inst, val) - char *host; - char *inst; - char *val; +static int users_read (void) { - rrd_update_file(host, rrd_file, val, ds_def, ds_num); - return; -} - -void module_register(void) +#if HAVE_GETUTXENT + unsigned int users = 0; + struct utmpx *entry = NULL; + + /* according to the *utent(3) man page none of the functions sets errno + in case of an error, so we cannot do any error-checking here */ + setutxent(); + + while (NULL != (entry = getutxent())) { + if (USER_PROCESS == entry->ut_type) { + ++users; + } + } + endutxent(); + + users_submit (users); +/* #endif HAVE_GETUTXENT */ + +#elif HAVE_GETUTENT + unsigned int users = 0; + struct utmp *entry = NULL; + + /* according to the *utent(3) man page none of the functions sets errno + in case of an error, so we cannot do any error-checking here */ + setutent(); + + while (NULL != (entry = getutent())) { + if (USER_PROCESS == entry->ut_type) { + ++users; + } + } + endutent(); + + users_submit (users); +#endif /* HAVE_GETUTENT */ + + return (0); +} /* int users_read */ +#endif /* USERS_HAVE_READ */ + +void module_register (void) { - plugin_register(MODULE_NAME, users_init, users_read, users_write); - return; -} - -#undef MODULE_NAME -#endif /* COLLECT_USERS */ - +#if USERS_HAVE_READ + plugin_register_read ("users", users_read); +#endif +} /* void module_register(void) */