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Signal handlers and clean(er) exit

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This commit is contained in:
Henri DF
2016-03-02 20:12:13 -08:00
parent a921e25385
commit 5f681b1bd8
1 changed files with 28 additions and 0 deletions
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28
userspace/digwatch/digwatch.cpp
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@@ -2,6 +2,7 @@
#include <stdio.h>
#include <iostream>
#include <signal.h>
#include <time.h>
#include <fcntl.h>
#include <sys/stat.h>
@@ -22,6 +23,13 @@ extern "C" {
#include "fields.h"
#include "utils.h"
static bool g_terminate = false;
static void signal_callback(int signal)
{
g_terminate = true;
}
//
// Program help
@@ -64,6 +72,12 @@ void do_inspect(sinsp* inspector,
//
while(1)
{
if(g_terminate)
{
break;
}
res = inspector->next(&ev);
if(res == SCAP_TIMEOUT)
@@ -197,6 +211,20 @@ int digwatch_init(int argc, char **argv)
}
if(signal(SIGINT, signal_callback) == SIG_ERR)
{
fprintf(stderr, "An error occurred while setting SIGINT signal handler.\n");
result = EXIT_FAILURE;
goto exit;
}
if(signal(SIGTERM, signal_callback) == SIG_ERR)
{
fprintf(stderr, "An error occurred while setting SIGTERM signal handler.\n");
result = EXIT_FAILURE;
goto exit;
}
//
char* env_lua_dir = getenv("DIGWATCH_LUA_DIR");
if(env_lua_dir)