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78 lines
2.1 KiB
78 lines
2.1 KiB
/*
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* Copyright (C) 2012-2014 Cyril Hrubis chrubis@suse.cz
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*
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* This program is free software; you can redistribute it and/or modify it
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* under the terms of version 2 of the GNU General Public License as
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* published by the Free Software Foundation.
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*
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* This program is distributed in the hope that it would be useful, but
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* WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
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*
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* Further, this software is distributed without any warranty that it is
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* free of the rightful claim of any third person regarding infringement
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* or the like. Any license provided herein, whether implied or
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* otherwise, applies only to this software file. Patent licenses, if
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* any, provided herein do not apply to combinations of this program with
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* other software, or any other product whatsoever.
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*
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* You should have received a copy of the GNU General Public License along
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* with this program; if not, write the Free Software Foundation, Inc.,
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* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
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*/
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#include <stdio.h>
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#include <string.h>
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#include <errno.h>
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#include "test.h"
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#include "tst_process_state.h"
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void tst_process_state_wait(const char *file, const int lineno,
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void (*cleanup_fn)(void),
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pid_t pid, const char state)
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{
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char proc_path[128], cur_state;
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snprintf(proc_path, sizeof(proc_path), "/proc/%i/stat", pid);
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for (;;) {
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safe_file_scanf(file, lineno, cleanup_fn, proc_path,
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"%*i %*s %c", &cur_state);
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if (state == cur_state)
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return;
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usleep(10000);
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}
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}
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int tst_process_state_wait2(pid_t pid, const char state)
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{
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char proc_path[128], cur_state;
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snprintf(proc_path, sizeof(proc_path), "/proc/%i/stat", pid);
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for (;;) {
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FILE *f = fopen(proc_path, "r");
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if (!f) {
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fprintf(stderr, "Failed to open '%s': %s\n",
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proc_path, strerror(errno));
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return 1;
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}
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if (fscanf(f, "%*i %*s %c", &cur_state) != 1) {
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fclose(f);
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fprintf(stderr, "Failed to read '%s': %s\n",
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proc_path, strerror(errno));
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return 1;
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}
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fclose(f);
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if (state == cur_state)
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return 0;
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usleep(10000);
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}
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}
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