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/*
* ecgen, tool for generating Elliptic curve domain parameters
* Copyright (C) 2017-2018 J08nY
*/
#include "timeout.h"
#include "util/memory.h"
__thread jmp_buf timeout_ptr;
__thread bool timeout_in = false;
__thread timer_t *timeout_timer;
__thread struct sigevent *sevp;
void timeout_handle(int signum, siginfo_t *siginfo, void *other) {
sigset_t mask;
sigemptyset(&mask);
sigaddset(&mask, SIGALRM);
sigprocmask(SIG_UNBLOCK, &mask, NULL);
if (timeout_in) siglongjmp(timeout_ptr, 1);
}
void timeout_thread_init() {
timeout_timer = try_calloc(sizeof(timer_t));
sevp = try_calloc(sizeof(struct sigevent));
}
void timeout_thread_quit() {
try_free(timeout_timer);
try_free(sevp);
}
bool timeout_init() {
// init for the main thread.
timeout_thread_init();
struct sigaction new_action;
new_action.sa_sigaction = timeout_handle;
sigemptyset(&new_action.sa_mask);
new_action.sa_flags = SA_SIGINFO;
sigaction(SIGALRM, &new_action, NULL);
return true;
}
void timeout_quit() {
// deinit the main thread.
timeout_thread_quit();
}
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