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#include "utils/platform/unix/interface.h"
#include "utils/platform/platform.h"
#include <csignal>
#include <sys/inotify.h>
#include <sys/prctl.h>
#include <unistd.h>
namespace TangoTest::platform
{
std::vector<std::string> default_env()
{
return {};
}
namespace unix
{
struct FileWatcher::Impl
{
explicit Impl(const char *filename)
{
fd = inotify_init();
if(fd == -1)
{
throw_strerror("inotify_init()");
}
if(inotify_add_watch(fd, filename, IN_MODIFY) == -1)
{
throw_strerror("inotify_add_watch(\"", filename, "\")");
}
}
~Impl()
{
::close(fd);
}
void pop_event()
{
struct inotify_event ev;
while(true)
{
if(read(fd, &ev, sizeof(ev)) == -1)
{
if(errno == EINTR)
{
continue;
}
throw_strerror("read()");
}
break;
}
}
int fd = -1;
};
FileWatcher::FileWatcher(const char *filename) :
m_pimpl{std::make_unique<FileWatcher::Impl>(filename)}
{
}
FileWatcher::~FileWatcher() { }
void FileWatcher::start_watching() { }
void FileWatcher::stop_watching() { }
int FileWatcher::get_file_descriptor()
{
return m_pimpl->fd;
}
void FileWatcher::cleanup_in_child()
{
m_pimpl.reset(nullptr);
}
void FileWatcher::pop_event()
{
m_pimpl->pop_event();
}
void kill_self_on_parent_death(pid_t ppid)
{
prctl(PR_SET_PDEATHSIG, SIGTERM);
// Our parent might have died after the call to fork(), but before the call
// to prctl()
if(getppid() != ppid)
{
exit(0);
}
}
} // namespace unix
} // namespace TangoTest::platform
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