Added cygwin support.
Patch by Cygwin Ports maintainer <yselkowitz@users.sourceforge.net>. See #578890.
This commit is contained in:
Benoît Dejean
169
sysdeps/cygwin/proclist.c
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169
sysdeps/cygwin/proclist.c
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/* Copyright (C) 1998-99 Martin Baulig
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This file is part of LibGTop 1.0.
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Contributed by Martin Baulig <martin@home-of-linux.org>, April 1998.
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LibGTop is free software; you can redistribute it and/or modify it
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under the terms of the GNU General Public License as published by
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the Free Software Foundation; either version 2 of the License,
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or (at your option) any later version.
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LibGTop is distributed in the hope that it will be useful, but WITHOUT
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ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
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for more details.
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You should have received a copy of the GNU General Public License
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along with LibGTop; see the file COPYING. If not, write to the
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Free Software Foundation, Inc., 59 Temple Place - Suite 330,
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Boston, MA 02111-1307, USA.
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*/
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#include <config.h>
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#include <glibtop/proclist.h>
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#include <glibtop/procuid.h>
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#include <glibtop/procstate.h>
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#include <sys/stat.h>
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#include <unistd.h>
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#include <dirent.h>
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#include <ctype.h>
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static const unsigned long _glibtop_sysdeps_proclist =
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(1L << GLIBTOP_PROCLIST_TOTAL) + (1L << GLIBTOP_PROCLIST_NUMBER) +
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(1L << GLIBTOP_PROCLIST_SIZE);
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/* Init function. */
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void
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_glibtop_init_proclist_s (glibtop *server)
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{
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server->sysdeps.proclist = _glibtop_sysdeps_proclist;
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}
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/* Fetch list of currently running processes.
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*
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* The interface of this function is a little bit different from the others:
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* buf->flags is only set if the call succeeded, in this case pids_chain,
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* a list of the pids of all currently running processes is returned,
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* buf->number is the number of elements of this list and buf->size is
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* the size of one single element (sizeof (unsigned)). The total size is
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* stored in buf->total.
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*
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* The calling function has to free the memory to which a pointer is returned.
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*
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* On error, NULL is returned and buf->flags is zero. */
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pid_t*
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glibtop_get_proclist_s (glibtop *server, glibtop_proclist *buf,
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gint64 which, gint64 arg)
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{
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DIR *proc;
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struct dirent *entry;
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GArray *pids;
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glibtop_proc_uid procuid;
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glibtop_proc_state procstate;
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struct stat statb;
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memset (buf, 0, sizeof (glibtop_proclist));
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proc = opendir ("/proc");
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if (!proc) return NULL;
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if(fstat(dirfd(proc), &statb) != 0) return NULL;
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pids = g_array_sized_new(FALSE, FALSE, sizeof(pid_t), statb.st_nlink);
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/* read every every entry in /proc */
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while((entry = readdir (proc))) {
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pid_t pid;
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if (entry->d_type != DT_DIR)
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continue;
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if (!(pid = strtoul(entry->d_name, NULL, 10)))
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continue;
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switch (which & GLIBTOP_KERN_PROC_MASK) {
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case GLIBTOP_KERN_PROC_ALL:
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break;
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case GLIBTOP_KERN_PROC_PID:
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if ((pid_t) arg != pid)
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continue;
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break;
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case GLIBTOP_KERN_PROC_UID:
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{
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char path[32];
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struct stat path_stat;
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snprintf(path, sizeof path, "/proc/%u", (unsigned)pid);
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if (stat(path, &path_stat))
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continue;
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if ((uid_t) arg != path_stat.st_uid)
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continue;
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}
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break;
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case GLIBTOP_KERN_PROC_PGRP:
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/* Do you really, really need this ? */
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glibtop_get_proc_uid_s (server, &procuid, pid);
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if (procuid.flags & (1L << GLIBTOP_PROC_UID_PGRP))
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if ((int) arg != procuid.pgrp)
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continue;
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break;
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case GLIBTOP_KERN_PROC_SESSION:
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/* Do you really, really need this ? */
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glibtop_get_proc_uid_s (server, &procuid, pid);
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if (procuid.flags & (1L << GLIBTOP_PROC_UID_SESSION))
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if ((int) arg != procuid.session)
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continue;
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break;
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case GLIBTOP_KERN_PROC_TTY:
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/* Do you really, really need this ? */
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glibtop_get_proc_uid_s (server, &procuid, pid);
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if (procuid.flags & (1L << GLIBTOP_PROC_UID_TTY))
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if ((int) arg != procuid.tty)
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continue;
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break;
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case GLIBTOP_KERN_PROC_RUID:
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/* Do you really, really need this ? */
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glibtop_get_proc_uid_s (server, &procuid, pid);
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if (procuid.flags & (1L << GLIBTOP_PROC_UID_EUID))
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if ((int) arg != procuid.euid)
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continue;
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break;
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}
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if (which & GLIBTOP_EXCLUDE_NOTTY) {
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glibtop_get_proc_uid_s (server, &procuid, pid);
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if (procuid.flags & (1L << GLIBTOP_PROC_UID_TTY))
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if (procuid.tty == -1) continue;
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}
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if (which & GLIBTOP_EXCLUDE_IDLE) {
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glibtop_get_proc_state_s (server, &procstate, pid);
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if (procstate.flags & (1L << GLIBTOP_PROC_STATE_STATE))
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if (procstate.state != GLIBTOP_PROCESS_RUNNING) continue;
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}
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if (which & GLIBTOP_EXCLUDE_SYSTEM) {
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glibtop_get_proc_uid_s (server, &procuid, pid);
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if (procuid.flags & (1L << GLIBTOP_PROC_UID_UID))
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if (procuid.uid == 0) continue;
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}
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g_array_append_val(pids, pid);
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}
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closedir (proc);
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buf->flags = _glibtop_sysdeps_proclist;
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buf->size = sizeof(pid_t);
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buf->number = pids->len;
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buf->total = buf->number * buf->size;
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return (pid_t*)g_array_free(pids, FALSE);
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}
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