github/falco
1
0
Fork 0
mirror of https://github.com/falcosecurity/falco.git synced 2025-06-29 16:17:32 +00:00
Code Issues Projects Releases Wiki Activity

fix(userspace/falco): split init_ticker for different oses

Browse Source 
Signed-off-by: Roberto Scolaro <roberto.scolaro21@gmail.com>
This commit is contained in:
Roberto Scolaro 2023-11-02 19:33:34 +01:00 committed by poiana
parent be90768b0a
commit fde8da0e5c
1 changed files with 63 additions and 13 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

74
userspace/falco/stats_writer.cpp
View File

@ -52,12 +52,68 @@ static void timer_handler(int signum)
s_timer.fetch_add(1, std::memory_order_relaxed);
}
#if defined(_WIN32)
bool stats_writer::init_ticker(uint32_t interval_msec, std::string &err)
{
#if !defined(_WIN32)
#if !defined(__APPLE__)
struct itimerspec timer = {};
return true;
}
#endif
#if defined(__APPLE__)
bool stats_writer::init_ticker(uint32_t interval_msec, std::string &err)
{
struct sigaction handler = {};
memset (&handler, 0, sizeof(handler));
handler.sa_handler = &timer_handler;
if (sigaction(SIGALRM, &handler, NULL) == -1)
{
err = std::string("Could not set up signal handler for periodic timer: ") + strerror(errno);
return false;
}
struct sigevent sev = {};
/* Create the timer */
sev.sigev_notify = SIGEV_SIGNAL;
sev.sigev_signo = SIGALRM;
sev.sigev_value.sival_ptr = &s_timerid;
return true;
}
#endif
#if defined(EMSCRIPTEN)
bool stats_writer::init_ticker(uint32_t interval_msec, std::string &err)
{
struct itimerspec timer = {};
struct sigaction handler = {};
memset (&handler, 0, sizeof(handler));
handler.sa_handler = &timer_handler;
if (sigaction(SIGALRM, &handler, NULL) == -1)
{
err = std::string("Could not set up signal handler for periodic timer: ") + strerror(errno);
return false;
}
struct sigevent sev = {};
/* Create the timer */
sev.sigev_notify = SIGEV_SIGNAL;
sev.sigev_signo = SIGALRM;
sev.sigev_value.sival_ptr = &s_timerid;
timer.it_value.tv_sec = interval_msec / 1000;
timer.it_value.tv_nsec = (interval_msec % 1000) * 1000 * 1000;
timer.it_interval = timer.it_value;
return true;
}
#endif
#if defined(__linux__)
bool stats_writer::init_ticker(uint32_t interval_msec, std::string &err)
{
struct itimerspec timer = {};
struct sigaction handler = {};
memset (&handler, 0, sizeof(handler));
@ -73,7 +129,6 @@ bool stats_writer::init_ticker(uint32_t interval_msec, std::string &err)
sev.sigev_notify = SIGEV_SIGNAL;
sev.sigev_signo = SIGALRM;
sev.sigev_value.sival_ptr = &s_timerid;
#if !defined(__EMSCRIPTEN__) && !defined(__APPLE__)
// delete any previously set timer
if (s_timerid_exists)
{
@ -92,24 +147,19 @@ bool stats_writer::init_ticker(uint32_t interval_msec, std::string &err)
}
s_timerid_exists = true;
#endif
#if !defined(__APPLE__)
timer.it_value.tv_sec = interval_msec / 1000;
timer.it_value.tv_nsec = (interval_msec % 1000) * 1000 * 1000;
timer.it_interval = timer.it_value;
#endif
#if !defined(__EMSCRIPTEN__) && !defined(__APPLE__)
if (timer_settime(s_timerid, 0, &timer, NULL) == -1)
{
err = std::string("Could not set up periodic timer: ") + strerror(errno);
return false;
}
#endif
#endif // !defined(_WIN32)
return true;
}
#endif
stats_writer::ticker_t stats_writer::get_ticker()
{
@ -164,7 +214,7 @@ stats_writer::~stats_writer()
m_file_output.close();
}
// delete timerID and reset timer
#if !defined(__EMSCRIPTEN__) && !defined(__APPLE__) && !defined(_WIN32)
#ifdef __linux__
if (s_timerid_exists)
{
timer_delete(s_timerid);