pmm_main.c File Reference

The pmm application. More...

#include <stdio.h>
#include <stdlib.h>
#include <signal.h>
#include <sys/signal.h>
#include <pthread.h>
#include <unistd.h>
#include <sys/time.h>
#include <time.h>
#include <paths.h>
#include <sys/types.h>
#include <sys/stat.h>
#include "pmm_model.h"
#include "pmm_load.h"
#include "pmm_loadmonitor.h"
#include "pmm_argparser.h"
#include "pmm_cfgparser.h"
#include "pmm_scheduler.h"
#include "pmm_executor.h"
#include "pmm_log.h"

Go to the source code of this file.

Functions
void	run_as_daemon ()
void	sig_cleanup (int sig)
void	sig_do_nothing ()
void *	signal_handler (void *arg)
void	redirect_output (char *logfile)
int	main (int argc, char **argv)

Variables
int	executing_benchmark
	daemon executing variable or not
pthread_mutex_t	executing_benchmark_mutex
	mutex for accessing executing_benchmark variable
int	signal_quit = 0
	signal to indicate benchmark should be terminated
pthread_mutex_t	signal_quit_mutex = PTHREAD_MUTEX_INITIALIZER
	mutex for accessing singal_quit
volatile sig_atomic_t	sig_cleanup_received = 0
volatile sig_atomic_t	sig_pause_received = 0
volatile sig_atomic_t	sig_unpause_received = 0

Detailed Description

The pmm application.

Main function for the pmm application

Definition in file pmm_main.c.

Function Documentation

int main	(	int	argc,
		char **	argv
	)

the main function

Structure of the main function is as follows:

• set up signal handlers
• parse command line arguments
• read configuration file, models and load history
• launch load monitoring thread
• enter main loop
  • if not executing benchmark
    • clean up previous benchmark execution
    • pick a new benchmark launch benchmarking thread

All the while checking for termination signals, handling shutdown and so on.

Definition at line 228 of file pmm_main.c.

void redirect_output

(

char *

logfile

)

Definition at line 202 of file pmm_main.c.

void run_as_daemon

(

)

Definition at line 73 of file pmm_main.c.

void sig_cleanup

(

int

sig

)

Definition at line 188 of file pmm_main.c.

void sig_do_nothing

(

)

Definition at line 198 of file pmm_main.c.

void* signal_handler

(

void *

arg

)

single handler thread that should catch signals and set appropriate gobal variables

Warning

Do not use *PRINTF logging facility in this thread, it is not 'async-signal-safe' (though it is threadsafe).

Definition at line 113 of file pmm_main.c.

Variable Documentation

int executing_benchmark

daemon executing variable or not

Definition at line 54 of file pmm_main.c.

pthread_mutex_t executing_benchmark_mutex

mutex for accessing executing_benchmark variable

Definition at line 55 of file pmm_main.c.

volatile sig_atomic_t sig_cleanup_received = 0

Definition at line 60 of file pmm_main.c.

volatile sig_atomic_t sig_pause_received = 0

Definition at line 61 of file pmm_main.c.

volatile sig_atomic_t sig_unpause_received = 0

Definition at line 62 of file pmm_main.c.

int signal_quit = 0

signal to indicate benchmark should be terminated

Definition at line 57 of file pmm_main.c.

pthread_mutex_t signal_quit_mutex = PTHREAD_MUTEX_INITIALIZER

mutex for accessing singal_quit

Definition at line 58 of file pmm_main.c.