Merging upstream version 1.46.3.

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

3 files changed, 0 insertions, 805 deletions

diff --git a/fluent-bit/plugins/in_cpu/CMakeLists.txt b/fluent-bit/plugins/in_cpu/CMakeLists.txt
deleted file mode 100644
index 4ed82c5d7..000000000
--- a/fluent-bit/plugins/in_cpu/CMakeLists.txt
+++ /dev/null
@@ -1,4 +0,0 @@
-set(src
-  cpu.c)
-
-FLB_PLUGIN(in_cpu "${src}" "")
diff --git a/fluent-bit/plugins/in_cpu/cpu.c b/fluent-bit/plugins/in_cpu/cpu.c
deleted file mode 100644
index 5d049eb92..000000000
--- a/fluent-bit/plugins/in_cpu/cpu.c
+++ /dev/null
@@ -1,672 +0,0 @@
-/* -*- 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.
- */
-
-#include <fluent-bit/flb_info.h>
-#include <fluent-bit/flb_input.h>
-#include <fluent-bit/flb_input_plugin.h>
-#include <fluent-bit/flb_config.h>
-#include <fluent-bit/flb_pack.h>
-
-#include <stdio.h>
-#include <stdlib.h>
-#include <unistd.h>
-#include <math.h>
-
-#include "cpu.h"
-
-static inline void snapshot_key_format(int cpus, struct cpu_snapshot *snap_arr)
-{
-    int i;
-    struct cpu_snapshot *snap;
-
-    snap = &snap_arr[0];
-    memcpy(snap->k_cpu.name, "cpu", 3);
-    snap->k_cpu.name[3] = '\0';
-
-    for (i = 1; i <= cpus; i++) {
-        snap = (struct cpu_snapshot *) &snap_arr[i];
-        CPU_KEY_FORMAT(snap, cpu, i);
-        CPU_KEY_FORMAT(snap, user, i);
-        CPU_KEY_FORMAT(snap, system, i);
-    }
-}
-
-static int snapshots_init(int cpus, struct cpu_stats *cstats)
-{
-    cstats->snap_a = flb_calloc(1, sizeof(struct cpu_snapshot) * (cpus + 1));
-    if (!cstats->snap_a) {
-        flb_errno();
-        return -1;
-    }
-
-    cstats->snap_b = flb_malloc(sizeof(struct cpu_snapshot) * (cpus + 1));
-    if (!cstats->snap_b) {
-        flb_errno();
-        return -1;
-    }
-
-    /* Initialize each array */
-    snapshot_key_format(cpus, cstats->snap_a);
-    snapshot_key_format(cpus, cstats->snap_b);
-    cstats->snap_active = CPU_SNAP_ACTIVE_A;
-    return 0;
-}
-
-static inline void snapshots_switch(struct cpu_stats *cstats)
-{
-    if (cstats->snap_active == CPU_SNAP_ACTIVE_A) {
-        cstats->snap_active = CPU_SNAP_ACTIVE_B;
-    }
-    else {
-        cstats->snap_active = CPU_SNAP_ACTIVE_A;
-    }
-}
-
-/* Retrieve CPU load from the system (through ProcFS) */
-static inline double proc_cpu_load(int cpus, struct cpu_stats *cstats)
-{
-    int i;
-    int ret;
-    char line[255];
-    size_t len = 0;
-    char *fmt;
-    FILE *f;
-    struct cpu_snapshot *s;
-    struct cpu_snapshot *snap_arr;
-
-    f = fopen("/proc/stat", "r");
-    if (f == NULL) {
-        flb_errno();
-        return -1;
-    }
-
-    if (cstats->snap_active == CPU_SNAP_ACTIVE_A) {
-        snap_arr = cstats->snap_a;
-    }
-    else {
-        snap_arr = cstats->snap_b;
-    }
-
-    /* Always read (n_cpus + 1) lines */
-    for (i = 0; i <= cpus; i++) {
-        if (fgets(line, sizeof(line) - 1, f)) {
-            len = strlen(line);
-            if (line[len - 1] == '\n') {
-                line[--len] = 0;
-                if (len && line[len - 1] == '\r') {
-                    line[--len] = 0;
-                }
-            }
-
-            s = &snap_arr[i];
-            if (i == 0) {
-                fmt = " cpu  %lu %lu %lu %lu %lu";
-                ret = sscanf(line,
-                             fmt,
-                             &s->v_user,
-                             &s->v_nice,
-                             &s->v_system,
-                             &s->v_idle,
-                             &s->v_iowait);
-                if (ret < 5) {
-                    fclose(f);
-                    return -1;
-                }
-            }
-            else {
-                fmt = " %s %lu %lu %lu %lu %lu";
-                ret = sscanf(line,
-                             fmt,
-                             s->v_cpuid,
-                             &s->v_user,
-                             &s->v_nice,
-                             &s->v_system,
-                             &s->v_idle,
-                             &s->v_iowait);
-                if (ret <= 5) {
-                    fclose(f);
-                    return -1;
-                }
-            }
-        }
-        else {
-            break;
-        }
-    }
-
-    fclose(f);
-    return 0;
-}
-
-/* Retrieve CPU stats for a given PID */
-static inline double proc_cpu_pid_load(struct flb_cpu *ctx,
-                                       pid_t pid, struct cpu_stats *cstats)
-{
-    int ret;
-    char *p;
-    char line[255];
-    char *fmt = ") %c %d %d %d %d %d %u %lu %lu %lu %lu %lu %lu ";
-    FILE *f;
-    /* sscanf variables (ss_N) to perform scanning */
-    unsigned char ss_state;
-    unsigned int ss_ppid;
-    unsigned int ss_pgrp;
-    unsigned int ss_session;
-    unsigned int ss_tty_nr;
-    unsigned int ss_tpgid;
-    unsigned int ss_flags;
-    unsigned long ss_minflt;
-    unsigned long ss_cmdinflt;
-    unsigned long ss_majflt;
-    unsigned long ss_cmajflt;
-    struct cpu_snapshot *s;
-
-    /* Read the process stats */
-    snprintf(line, sizeof(line) - 1, "/proc/%d/stat", pid);
-    f = fopen(line, "r");
-    if (f == NULL) {
-        flb_errno();
-        flb_plg_error(ctx->ins, "error opening stats file %s", line);
-        return -1;
-    }
-
-    if (cstats->snap_active == CPU_SNAP_ACTIVE_A) {
-        s = cstats->snap_a;
-    }
-    else {
-        s = cstats->snap_b;
-    }
-
-    if (fgets(line, sizeof(line) - 1, f) == NULL) {
-        flb_plg_error(ctx->ins, "cannot read process %ld stats", (long) pid);
-        fclose(f);
-        return -1;
-    }
-
-    errno = 0;
-
-    /* skip first two values (after process name) */
-    p = line;
-    while (*p != ')') p++;
-
-    errno = 0;
-    ret = sscanf(p,
-                 fmt,
-                 &ss_state,
-                 &ss_ppid,
-                 &ss_pgrp,
-                 &ss_session,
-                 &ss_tty_nr,
-                 &ss_tpgid,
-                 &ss_flags,
-                 &ss_minflt,
-                 &ss_cmdinflt,
-                 &ss_majflt,
-                 &ss_cmajflt,
-                 &s->v_user,
-                 &s->v_system);
-    if (errno != 0) {
-        flb_errno();
-        flb_plg_error(ctx->ins, "pid sscanf failed ret=%i", ret);
-    }
-
-    fclose(f);
-    return 0;
-}
-
-/*
- * Given the two snapshots, calculate the % used in user and kernel space,
- * it returns the active snapshot.
- */
-struct cpu_snapshot *snapshot_percent(struct cpu_stats *cstats,
-                                      struct flb_cpu *ctx)
-{
-    int i;
-    unsigned long sum_pre;
-    unsigned long sum_now;
-    struct cpu_snapshot *arr_pre = cstats->snap_b;
-    struct cpu_snapshot *arr_now = cstats->snap_a;
-    struct cpu_snapshot *snap_pre = NULL;
-    struct cpu_snapshot *snap_now = NULL;
-
-    if (cstats->snap_active == CPU_SNAP_ACTIVE_A) {
-        arr_now = cstats->snap_a;
-        arr_pre = cstats->snap_b;
-    }
-    else if (cstats->snap_active == CPU_SNAP_ACTIVE_B) {
-        arr_now = cstats->snap_b;
-        arr_pre = cstats->snap_a;
-    }
-
-    for (i = 0; i <= ctx->n_processors; i++) {
-        snap_pre = &arr_pre[i];
-        snap_now = &arr_now[i];
-
-        /* Calculate overall CPU usage (user space + kernel space */
-        sum_pre = (snap_pre->v_user + snap_pre->v_nice + snap_pre->v_system);
-        sum_now = (snap_now->v_user + snap_now->v_nice + snap_now->v_system);
-
-        if (i == 0) {
-            snap_now->p_cpu = CPU_METRIC_SYS_AVERAGE(sum_pre, sum_now, ctx);
-        }
-        else {
-            snap_now->p_cpu = CPU_METRIC_USAGE(sum_pre, sum_now, ctx);
-        }
-
-        /* User space CPU% */
-        sum_pre = (snap_pre->v_user + snap_pre->v_nice);
-        sum_now = (snap_now->v_user + snap_now->v_nice);
-        if (i == 0) {
-            snap_now->p_user = CPU_METRIC_SYS_AVERAGE(sum_pre, sum_now, ctx);
-        }
-        else {
-            snap_now->p_user = CPU_METRIC_USAGE(sum_pre, sum_now, ctx);
-        }
-
-        /* Kernel space CPU% */
-        if (i == 0) {
-            snap_now->p_system = CPU_METRIC_SYS_AVERAGE(snap_pre->v_system,
-                                                        snap_now->v_system,
-                                                        ctx);
-        }
-        else {
-            snap_now->p_system = CPU_METRIC_USAGE(snap_pre->v_system,
-                                                  snap_now->v_system,
-                                                  ctx);
-        }
-
-#ifdef FLB_TRACE
-        if (i == 0) {
-            flb_trace("cpu[all] all=%s%f%s user=%s%f%s system=%s%f%s",
-                      ANSI_BOLD, snap_now->p_cpu, ANSI_RESET,
-                      ANSI_BOLD, snap_now->p_user, ANSI_RESET,
-                      ANSI_BOLD, snap_now->p_system, ANSI_RESET);
-        }
-        else {
-            flb_trace("cpu[i=%i] all=%f user=%f system=%f",
-                      i-1, snap_now->p_cpu,
-                      snap_now->p_user, snap_now->p_system);
-        }
-#endif
-    }
-
-    return arr_now;
-}
-
-struct cpu_snapshot *snapshot_pid_percent(struct cpu_stats *cstats,
-                                          struct flb_cpu *ctx)
-{
-    unsigned long sum_pre;
-    unsigned long sum_now;
-    struct cpu_snapshot *snap_pre = NULL;
-    struct cpu_snapshot *snap_now = NULL;
-
-    if (cstats->snap_active == CPU_SNAP_ACTIVE_A) {
-        snap_now = cstats->snap_a;
-        snap_pre = cstats->snap_b;
-    }
-    else if (cstats->snap_active == CPU_SNAP_ACTIVE_B) {
-        snap_now = cstats->snap_b;
-        snap_pre = cstats->snap_a;
-    }
-
-    /* Calculate overall CPU usage (user space + kernel space */
-    sum_pre = (snap_pre->v_user + snap_pre->v_system);
-    sum_now = (snap_now->v_user + snap_now->v_system);
-
-    snap_now->p_cpu = CPU_METRIC_SYS_AVERAGE(sum_pre, sum_now, ctx);
-
-    /* User space CPU% */
-    snap_now->p_user = CPU_METRIC_SYS_AVERAGE(snap_pre->v_user,
-                                              snap_now->v_user,
-                                              ctx);
-
-    /* Kernel space CPU% */
-    snap_now->p_system = CPU_METRIC_SYS_AVERAGE(snap_pre->v_system,
-                                                snap_now->v_system,
-                                                ctx);
-
-#ifdef FLB_TRACE
-    flb_trace("cpu[pid=%i] all=%s%f%s user=%s%f%s system=%s%f%s",
-              ctx->pid,
-              ANSI_BOLD, snap_now->p_cpu, ANSI_RESET,
-              ANSI_BOLD, snap_now->p_user, ANSI_RESET,
-              ANSI_BOLD, snap_now->p_system, ANSI_RESET);
-#endif
-
-    return snap_now;
-}
-
-static int cpu_collect_system(struct flb_input_instance *ins,
-                              struct flb_config *config, void *in_context)
-{
-    int i;
-    int ret;
-    struct flb_cpu *ctx = in_context;
-    struct cpu_stats *cstats = &ctx->cstats;
-    struct cpu_snapshot *s;
-
-    (void) config;
-
-    /* Get overall system CPU usage */
-    ret = proc_cpu_load(ctx->n_processors, cstats);
-    if (ret != 0) {
-        flb_plg_error(ins, "error retrieving overall system CPU stats");
-        return -1;
-    }
-
-    s = snapshot_percent(cstats, ctx);
-
-    ret = flb_log_event_encoder_begin_record(&ctx->log_encoder);
-
-    if (ret == FLB_EVENT_ENCODER_SUCCESS) {
-        ret = flb_log_event_encoder_set_current_timestamp(
-                &ctx->log_encoder);
-    }
-
-    if (ret == FLB_EVENT_ENCODER_SUCCESS) {
-        ret = flb_log_event_encoder_append_body_values(
-                &ctx->log_encoder,
-                FLB_LOG_EVENT_CSTRING_VALUE("cpu_p"),
-                FLB_LOG_EVENT_DOUBLE_VALUE(s[0].p_cpu),
-
-                FLB_LOG_EVENT_CSTRING_VALUE("user_p"),
-                FLB_LOG_EVENT_DOUBLE_VALUE(s[0].p_user),
-
-                FLB_LOG_EVENT_CSTRING_VALUE("system_p"),
-                FLB_LOG_EVENT_DOUBLE_VALUE(s[0].p_system));
-    }
-
-    for (i = 1;
-         i < ctx->n_processors + 1 &&
-         ret == FLB_EVENT_ENCODER_SUCCESS;
-         i++) {
-        struct cpu_snapshot *e = &s[i];
-
-        ret = flb_log_event_encoder_append_body_values(
-                &ctx->log_encoder,
-                FLB_LOG_EVENT_CSTRING_VALUE(e->k_cpu.name),
-                FLB_LOG_EVENT_DOUBLE_VALUE(e->p_cpu),
-
-                FLB_LOG_EVENT_CSTRING_VALUE(e->k_user.name),
-                FLB_LOG_EVENT_DOUBLE_VALUE(e->p_user),
-
-                FLB_LOG_EVENT_CSTRING_VALUE(e->k_system.name),
-                FLB_LOG_EVENT_DOUBLE_VALUE(e->p_system));
-    }
-
-    if (ret == FLB_EVENT_ENCODER_SUCCESS) {
-        ret = flb_log_event_encoder_commit_record(&ctx->log_encoder);
-    }
-
-    snapshots_switch(cstats);
-
-    flb_plg_trace(ins, "CPU %0.2f%%", s->p_cpu);
-
-    if (ret == FLB_EVENT_ENCODER_SUCCESS) {
-        flb_input_log_append(ins, NULL, 0,
-                             ctx->log_encoder.output_buffer,
-                             ctx->log_encoder.output_length);
-        ret = 0;
-    }
-    else {
-        flb_plg_error(ctx->ins, "Error encoding record : %d", ret);
-
-        ret = -1;
-    }
-
-    flb_log_event_encoder_reset(&ctx->log_encoder);
-
-    return ret;
-}
-
-static int cpu_collect_pid(struct flb_input_instance *ins,
-                           struct flb_config *config, void *in_context)
-{
-    int ret;
-    struct flb_cpu *ctx = in_context;
-    struct cpu_stats *cstats = &ctx->cstats;
-    struct cpu_snapshot *s;
-
-    (void) config;
-
-    /* Get overall system CPU usage */
-    ret = proc_cpu_pid_load(ctx, ctx->pid, cstats);
-    if (ret != 0) {
-        flb_plg_error(ctx->ins, "error retrieving PID CPU stats");
-        return -1;
-    }
-
-    s = snapshot_pid_percent(cstats, ctx);
-
-    ret = flb_log_event_encoder_begin_record(&ctx->log_encoder);
-
-    if (ret == FLB_EVENT_ENCODER_SUCCESS) {
-        ret = flb_log_event_encoder_set_current_timestamp(
-                &ctx->log_encoder);
-    }
-
-    if (ret == FLB_EVENT_ENCODER_SUCCESS) {
-        ret = flb_log_event_encoder_append_body_values(
-                &ctx->log_encoder,
-                FLB_LOG_EVENT_CSTRING_VALUE("cpu_p"),
-                FLB_LOG_EVENT_DOUBLE_VALUE(s->p_cpu),
-
-                FLB_LOG_EVENT_CSTRING_VALUE("user_p"),
-                FLB_LOG_EVENT_DOUBLE_VALUE(s->p_user),
-
-                FLB_LOG_EVENT_CSTRING_VALUE("system_p"),
-                FLB_LOG_EVENT_DOUBLE_VALUE(s->p_system));
-    }
-
-    snapshots_switch(cstats);
-    flb_plg_trace(ctx->ins, "PID %i CPU %0.2f%%", ctx->pid, s->p_cpu);
-
-    if (ret == FLB_EVENT_ENCODER_SUCCESS) {
-        ret = flb_log_event_encoder_commit_record(&ctx->log_encoder);
-    }
-
-    if (ret == FLB_EVENT_ENCODER_SUCCESS) {
-        flb_input_log_append(ins, NULL, 0,
-                             ctx->log_encoder.output_buffer,
-                             ctx->log_encoder.output_length);
-
-        ret = 0;
-    }
-    else {
-        flb_plg_error(ctx->ins, "Error encoding record : %d", ret);
-
-        ret = -1;
-    }
-
-    flb_log_event_encoder_reset(&ctx->log_encoder);
-
-    return ret;
-}
-
-/* Callback to gather CPU usage between now and previous snapshot */
-static int cb_cpu_collect(struct flb_input_instance *ins,
-                          struct flb_config *config, void *in_context)
-{
-    struct flb_cpu *ctx = in_context;
-
-    /* if a PID is get, get CPU stats only for that process */
-    if (ctx->pid >= 0) {
-        return cpu_collect_pid(ins, config, in_context);
-    }
-    else {
-        /* Get all system CPU stats */
-        return cpu_collect_system(ins, config, in_context);
-    }
-}
-
-/* Init CPU input */
-static int cb_cpu_init(struct flb_input_instance *in,
-                       struct flb_config *config, void *data)
-{
-    int ret;
-    struct flb_cpu *ctx;
-    (void) data;
-    
-    /* Allocate space for the configuration */
-    ctx = flb_calloc(1, sizeof(struct flb_cpu));
-    if (!ctx) {
-        flb_errno();
-        return -1;
-    }
-    ctx->ins = in;
-    
-    ret = flb_input_config_map_set(in, (void *)ctx);
-    if (ret == -1) {
-        flb_free(ctx);
-        return -1;
-    }
-
-    /* Gather number of processors and CPU ticks */
-    ctx->n_processors = sysconf(_SC_NPROCESSORS_ONLN);
-    ctx->cpu_ticks    = sysconf(_SC_CLK_TCK);
-
-    /* Collection time setting */
-    if (ctx->interval_sec <= 0 && ctx->interval_nsec <= 0) {
-        /* Illegal settings. Override them. */
-        ctx->interval_sec = atoi(DEFAULT_INTERVAL_SEC);
-        ctx->interval_nsec = atoi(DEFAULT_INTERVAL_NSEC);
-    }
-
-    /* Initialize buffers for CPU stats */
-    ret = snapshots_init(ctx->n_processors, &ctx->cstats);
-    if (ret != 0) {
-        flb_free(ctx);
-        return -1;
-    }
-
-    /* Get CPU load, ready to be updated once fired the calc callback */
-    if (ctx->pid > 0) {
-        ret = proc_cpu_pid_load(ctx, ctx->pid, &ctx->cstats);
-    }
-    else {
-        ret = proc_cpu_load(ctx->n_processors, &ctx->cstats);
-    }
-    if (ret != 0) {
-        flb_error("[cpu] Could not obtain CPU data");
-        flb_free(ctx);
-        return -1;
-    }
-
-    ctx->cstats.snap_active = CPU_SNAP_ACTIVE_B;
-
-    /* Set the context */
-    flb_input_set_context(in, ctx);
-
-    /* Set our collector based on time, CPU usage every 1 second */
-    ret = flb_input_set_collector_time(in,
-                                       cb_cpu_collect,
-                                       ctx->interval_sec,
-                                       ctx->interval_nsec,
-                                       config);
-    if (ret == -1) {
-        flb_plg_error(ctx->ins, "could not set collector for CPU input plugin");
-        return -1;
-    }
-    ctx->coll_fd = ret;
-
-    ret = flb_log_event_encoder_init(&ctx->log_encoder,
-                                     FLB_LOG_EVENT_FORMAT_DEFAULT);
-
-    if (ret != FLB_EVENT_ENCODER_SUCCESS) {
-        flb_plg_error(ctx->ins, "error initializing event encoder : %d", ret);
-
-        /* Release snapshots */
-        flb_free(ctx->cstats.snap_a);
-        flb_free(ctx->cstats.snap_b);
-
-        /* done */
-        flb_free(ctx);
-
-        return -1;
-    }
-
-    return 0;
-}
-
-static void cb_cpu_pause(void *data, struct flb_config *config)
-{
-    struct flb_cpu *ctx = data;
-    flb_input_collector_pause(ctx->coll_fd, ctx->ins);
-}
-
-static void cb_cpu_resume(void *data, struct flb_config *config)
-{
-    struct flb_cpu *ctx = data;
-    flb_input_collector_resume(ctx->coll_fd, ctx->ins);
-}
-
-static int cb_cpu_exit(void *data, struct flb_config *config)
-{
-    (void) *config;
-    struct flb_cpu *ctx = data;
-    struct cpu_stats *cs;
-
-    flb_log_event_encoder_destroy(&ctx->log_encoder);
-
-    /* Release snapshots */
-    cs = &ctx->cstats;
-    flb_free(cs->snap_a);
-    flb_free(cs->snap_b);
-
-    /* done */
-    flb_free(ctx);
-
-    return 0;
-}
-
-/* Configuration properties map */
-static struct flb_config_map config_map[] = {
-    {
-     FLB_CONFIG_MAP_INT, "pid", "-1",
-     0, FLB_TRUE, offsetof(struct flb_cpu, pid),
-     "Configure a single process to measure usage via their PID"
-    },
-    {
-      FLB_CONFIG_MAP_INT, "interval_sec", DEFAULT_INTERVAL_SEC,
-      0, FLB_TRUE, offsetof(struct flb_cpu, interval_sec),
-      "Set the collector interval"
-    },
-    {
-      FLB_CONFIG_MAP_INT, "interval_nsec", DEFAULT_INTERVAL_NSEC,
-      0, FLB_TRUE, offsetof(struct flb_cpu, interval_nsec),
-      "Set the collector interval (sub seconds)"
-    },
-    /* EOF */
-    {0}
-};
-
-/* Plugin reference */
-struct flb_input_plugin in_cpu_plugin = {
-    .name         = "cpu",
-    .description  = "CPU Usage",
-    .cb_init      = cb_cpu_init,
-    .cb_pre_run   = NULL,
-    .cb_collect   = cb_cpu_collect,
-    .cb_flush_buf = NULL,
-    .config_map   = config_map,
-    .cb_pause     = cb_cpu_pause,
-    .cb_resume    = cb_cpu_resume,
-    .cb_exit      = cb_cpu_exit
-};
diff --git a/fluent-bit/plugins/in_cpu/cpu.h b/fluent-bit/plugins/in_cpu/cpu.h
deleted file mode 100644
index 93cbd88c1..000000000
--- a/fluent-bit/plugins/in_cpu/cpu.h
+++ /dev/null
@@ -1,129 +0,0 @@
-/* -*- 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 FLB_IN_CPU_H
-#define FLB_IN_CPU_H
-
-#include <fluent-bit/flb_config.h>
-#include <fluent-bit/flb_input.h>
-#include <fluent-bit/flb_utils.h>
-#include <fluent-bit/flb_log_event_encoder.h>
-
-/* Default collection time: every 1 second (0 nanoseconds) */
-#define DEFAULT_INTERVAL_SEC    "1"
-#define DEFAULT_INTERVAL_NSEC   "0"
-#define IN_CPU_KEY_LEN       16
-
-struct cpu_key {
-    uint8_t length;
-    char name[IN_CPU_KEY_LEN];
-};
-
-struct cpu_snapshot {
-    /* data snapshots */
-    char          v_cpuid[8];
-    unsigned long v_user;
-    unsigned long v_nice;
-    unsigned long v_system;
-    unsigned long v_idle;
-    unsigned long v_iowait;
-
-    /* percent values */
-    double p_cpu;           /* Overall CPU usage        */
-    double p_user;          /* user space (user + nice) */
-    double p_system;        /* kernel space percent     */
-
-    /* necessary... */
-    struct cpu_key k_cpu;
-    struct cpu_key k_user;
-    struct cpu_key k_system;
-};
-
-#define CPU_SNAP_ACTIVE_A    0
-#define CPU_SNAP_ACTIVE_B    1
-
-struct cpu_stats {
-    uint8_t snap_active;
-
-    /* CPU snapshots, we always keep two snapshots */
-    struct cpu_snapshot *snap_a;
-    struct cpu_snapshot *snap_b;
-};
-
-/* CPU Input configuration & context */
-struct flb_cpu {
-    /* setup */
-    pid_t pid;          /* optional PID */
-    int n_processors;   /* number of core processors  */
-    int cpu_ticks;      /* CPU ticks (Kernel setting) */
-    int coll_fd;        /* collector id/fd            */
-    int interval_sec;   /* interval collection time (Second) */
-    int interval_nsec;  /* interval collection time (Nanosecond) */
-    struct cpu_stats cstats;
-    struct flb_input_instance *ins;
-    struct flb_log_event_encoder log_encoder;
-};
-
-#define CPU_KEY_FORMAT(s, key, i)                                   \
-    s->k_##key.length = snprintf(s->k_##key.name,                   \
-                                 IN_CPU_KEY_LEN,                    \
-                                 "cpu%i.p_%s", i - 1, #key)
-
-#define ULL_ABS(a, b)  (a > b) ? a - b : b - a
-
-/*
- * This routine calculate the average CPU utilization of the system, it
- * takes in consideration the number CPU cores, so it return a value
- * between 0 and 100 based on 'capacity'.
- */
-static inline double CPU_METRIC_SYS_AVERAGE(unsigned long pre,
-                                            unsigned long now,
-                                            struct flb_cpu *ctx)
-{
-    double diff;
-    double total = 0;
-
-    if (pre == now) {
-        return 0.0;
-    }
-
-    diff = ULL_ABS(now, pre);
-    total = (((diff / ctx->cpu_ticks) * 100) / ctx->n_processors) / (ctx->interval_sec + 1e-9*ctx->interval_nsec);
-
-    return total;
-}
-
-/* Returns the CPU % utilization of a given CPU core */
-static inline double CPU_METRIC_USAGE(unsigned long pre, unsigned long now,
-                                      struct flb_cpu *ctx)
-{
-    double diff;
-    double total = 0;
-
-    if (pre == now) {
-        return 0.0;
-    }
-
-    diff = ULL_ABS(now, pre);
-
-    total = ((diff * 100) / ctx->cpu_ticks) / (ctx->interval_sec + 1e-9*ctx->interval_nsec);
-    return total;
-}
-
-#endif