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add：添加自定义sig_handler

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This commit is contained in:
taynpg 2025-04-16 22:55:04 +08:00
parent eed787c1bf
commit 5ec7814181
1 changed files with 18 additions and 4 deletions
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22
crashelper/include/backward.hpp
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@ -4307,12 +4307,17 @@ class SignalHandling
{
private:
static inline std::function<std::string()> crash_path_getter_ = nullptr;
static inline std::function<void(int sig)> user_sig_handler_ = nullptr;
public:
static void register_crash_path(std::function<std::string()>&& crash_path_getter)
{
crash_path_getter_ = std::move(crash_path_getter);
}
static void register_user_sig_handler(std::function<void(int sig)>&& user_sig_handler)
{
user_sig_handler_ = std::move(user_sig_handler);
}
public:
static std::vector<int> make_default_signals()
@ -4432,8 +4437,7 @@ public:
if (out_path.empty()) {
printer.print(st, stderr);
}
else {
} else {
std::ofstream out(out_path);
printer.print(st, out);
out.close();
@ -4457,7 +4461,9 @@ private:
sig_handler(int signo, siginfo_t* info, void* _ctx)
{
handleSignal(signo, info, _ctx);
if (user_sig_handler_) {
user_sig_handler_(signo);
}
// try to forward the signal.
raise(info->si_signo);
@ -4476,6 +4482,7 @@ class SignalHandling
private:
static inline std::function<std::string()> crash_path_getter_ = nullptr;
static inline std::function<void(EXCEPTION_POINTERS* info)> crash_use_handler_ = nullptr;
static inline std::function<void(int sig)> user_sig_handler_ = nullptr;
public:
static void register_crash_path(std::function<std::string()>&& crash_path_getter)
@ -4486,6 +4493,10 @@ public:
{
crash_use_handler_ = std::move(crash_use_handler);
}
static void register_user_sig_handler(std::function<void(int sig)>&& user_sig_handler)
{
user_sig_handler_ = std::move(user_sig_handler);
}
SignalHandling(const std::vector<int>& = std::vector<int>())
: reporter_thread_([]() {
/* We handle crashes in a utility thread:
@ -4605,9 +4616,12 @@ private:
abort();
}
static inline void signal_handler(int)
static inline void signal_handler(int sig)
{
crash_handler(signal_skip_recs);
if (user_sig_handler_) {
user_sig_handler_(sig);
}
abort();
}