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// Copyright (c) Microsoft Corporation. All rights reserved.
// Licensed under the MIT License
//--------------------------------------------------------------------
//
// The global configuration structure and utilities header
//
//--------------------------------------------------------------------
#ifndef PROCDUMPCONFIGURATION_H
#define PROCDUMPCONFIGURATION_H
#include <stdbool.h>
#ifdef __linux__
#include <sys/sysinfo.h>
#endif
#include <zconf.h>
#include <stdio.h>
#include <stdlib.h>
#include <stdbool.h>
#include <getopt.h>
#include <ctype.h>
#include <string.h>
#include <stdint.h>
#include <strings.h>
#include <syslog.h>
#include <limits.h>
#include <dirent.h>
#include <errno.h>
#include <libgen.h>
#include <sys/types.h>
#include <sys/stat.h>
#include <unistd.h>
#include <fcntl.h>
#include <signal.h>
#ifdef __linux__
#include "Restrack.h"
#include "procdump_ebpf_common.h"
#endif
#include <unordered_map>
#define MAX_TRIGGERS 10
#define NO_PID INT_MAX
#define EMPTY_PROC_NAME "(null)"
#define MIN_POLLING_INTERVAL 1000 // default trigger polling interval (ms)
#define MAX_DUMP_COUNT 100 // maximum number of dumps that can be requested to be collected
// -------------------
// Structs
// -------------------
struct TriggerThread
{
pthread_t thread;
enum TriggerType trigger;
};
struct MonitoredProcessMapEntry
{
bool active;
long long starttime;
};
enum DiagnosticsLogTarget
{
none,
diag_syslog,
diag_stdout
};
struct ProcDumpConfiguration
{
// Process and System info
pid_t ProcessId;
pid_t ProcessGroup; // -pgid
bool bProcessGroup; // -pgid
char *ProcessName;
#ifdef __linux__
struct sysinfo SystemInfo;
#endif
// Runtime Values
int NumberOfDumpsCollecting; // Number of dumps we're collecting
int NumberOfDumpsCollected; // Number of dumps we have collected
int NumberOfLeakReportsCollected; // Number of leak reports we have collected
bool bTerminated; // Do we know whether the process has terminated and subsequently whether we are terminating?
char* socketPath;
bool bExitProcessMonitor;
// Quit
int nQuit; // if not 0, then quit
struct Handle evtQuit; // for signalling threads we are quitting
int statusSocket; // Socket used to wait for target process reporting status to procdump
// Trigger behavior
bool bTriggerThenSnoozeCPU; // Detect+Trigger=>Wait N second=>[repeat]
bool bTriggerThenSnoozeMemory; // Detect+Trigger=>Wait N second=>[repeat]
bool bTriggerThenSnoozeTimer; // Detect+Trigger=>Wait N second=>[repeat]
// Options
int CpuThreshold; // -c
bool bCpuTriggerBelowValue; // -cl
int* MemoryThreshold; // -m
int MemoryThresholdCount;
int MemoryCurrentThreshold;
bool bMemoryTriggerBelowValue; // -m or -ml
bool bMonitoringGCMemory; // -gcm
int DumpGCGeneration; // -gcgen
int ThresholdSeconds; // -s
bool bTimerThreshold; // -s
int NumberOfDumpsToCollect; // -n
bool WaitingForProcessName; // -w
DiagnosticsLogTarget DiagnosticsLoggingEnabled; // -log
int ThreadThreshold; // -tc
int FileDescriptorThreshold; // -fc
int* SignalNumber; // -sig
int SignalCount;
int PollingInterval; // -pf
char *CoreDumpPath; //
char *CoreDumpName; //
bool bOverwriteExisting; // -o
bool bDumpOnException; // -e
char *ExceptionFilter; // -f (unfortunately we named this ExceptionFilter event hough it can be used for other include filters as well)
char *ExcludeFilter; // -fx (exclude filter)
bool bRestrackEnabled; // -restrack
bool bRestrackGenerateDump; // -restrack generate dump flag
bool bLeakReportInProgress;
int SampleRate; // Record every X resource allocation in restrack
int CoreDumpMask; // -mc (core dump mask)
//
// Keeps track of the memory allocations when -restrack is specified.
// Access must be protected by memAllocMapMutex.
//
#ifdef __linux__
std::unordered_map<uintptr_t, ResourceInformation*> memAllocMap;
pthread_mutex_t memAllocMapMutex;
#endif
// multithreading
// set max number of concurrent dumps on init (default to 1)
int nThreads;
struct TriggerThread Threads[MAX_TRIGGERS];
struct Handle semAvailableDumpSlots;
pthread_mutex_t ptrace_mutex;
pthread_cond_t dotnetCond;
pthread_mutex_t dotnetMutex;
bool bSocketInitialized;
// Events
// use these to mimic WaitForSingleObject/MultibleObjects from WinApi
struct Handle evtCtrlHandlerCleanupComplete;
struct Handle evtBannerPrinted;
struct Handle evtConfigurationPrinted;
struct Handle evtDebugThreadInitialized;
struct Handle evtStartMonitoring;
// External
pid_t gcorePid;
};
int GetOptions(struct ProcDumpConfiguration *self, int argc, char *argv[]);
bool PrintConfiguration(struct ProcDumpConfiguration *self);
void ApplyDefaults(struct ProcDumpConfiguration *self); // Call this after GetOptions has been called to set default values
void FreeProcDumpConfiguration(struct ProcDumpConfiguration *self);
struct ProcDumpConfiguration * CopyProcDumpConfiguration(struct ProcDumpConfiguration *self);
void InitProcDumpConfiguration(struct ProcDumpConfiguration *self);
void InitProcDump();
void ExitProcDump();
void PrintBanner();
int PrintUsage();
#endif // PROCDUMPCONFIGURATION_H
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