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/* -*- Mode: C; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
/* Fluent Bit
* ==========
* Copyright (C) 2015-2022 The Fluent Bit Authors
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
#ifndef IN_MEM_PROC_H
#define IN_MEM_PROC_H
#define PROC_PID_SIZE 1024
#define PROC_STAT_BUF_SIZE 1024
/*
* This 'stat' format omits the first two fields, due to the nature
* of sscanf(3) and whitespaces, programs with spaces in the name can
* screw up when scanning the information.
*/
#define PROC_STAT_FORMAT "%c %d %d %d %d %d %u %lu %lu %lu %lu %lu %lu %ld %ld %ld %ld %ld %ld %llu %lu %ld"
/* Our tast struct to read the /proc/PID/stat values */
struct proc_task {
int pid; /* %d */
char comm[256]; /* %s */
char state; /* %c */
int ppid; /* %d */
int pgrp; /* %d */
int session; /* %d */
int tty_nr; /* %d */
int tpgid; /* %d */
unsigned int flags; /* %u */
unsigned long minflt; /* %lu */
unsigned long cminflt; /* %lu */
unsigned long majflt; /* %lu */
unsigned long cmajflt; /* %lu */
unsigned long utime; /* %lu */
unsigned long stime; /* %lu */
long cutime; /* %ld */
long cstime; /* %ld */
long priority; /* %ld */
long nice; /* %ld */
long num_threads; /* %ld */
long itrealvalue; /* %ld */
unsigned long long starttime; /* %llu */
unsigned long vsize; /* %lu */
long rss; /* %ld */
/* Internal conversion */
long proc_rss; /* bytes = (rss * PAGESIZE) */
char *proc_rss_hr; /* RSS in human readable format */
};
struct proc_task *proc_stat(pid_t pid, int page_size);
void proc_free(struct proc_task *t);
#endif
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