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Add noexcept qualifications in src/common

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Apparently this can actually make a difference in some cases, and the
C++ Core Guideliens recommend doing this on all default constructors,
destructors, and all functions that can not throw (and thus also don't
allocate).
This commit is contained in:
Robbert van der Helm
2021-05-14 17:12:24 +02:00
parent db6ecdbbd4
commit 59ba2aeb5f
126 changed files with 536 additions and 515 deletions
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src/common/utils.cpp
+7 -6
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@@ -32,7 +32,7 @@ fs::path get_temporary_directory() {
}
}
std::optional<int> get_realtime_priority() {
std::optional<int> get_realtime_priority() noexcept {
sched_param current_params{};
if (sched_getparam(0, &current_params) == 0 &&
current_params.sched_priority > 0) {
@@ -42,7 +42,7 @@ std::optional<int> get_realtime_priority() {
}
}
bool set_realtime_priority(bool sched_fifo, int priority) {
bool set_realtime_priority(bool sched_fifo, int priority) noexcept {
sched_param params{.sched_priority = (sched_fifo ? priority : 0)};
return sched_setscheduler(0, sched_fifo ? SCHED_FIFO : SCHED_OTHER,
&params) == 0;
@@ -66,23 +66,24 @@ bool pid_running(pid_t pid) {
}
}
ScopedFlushToZero::ScopedFlushToZero() {
ScopedFlushToZero::ScopedFlushToZero() noexcept {
old_ftz_mode = _MM_GET_FLUSH_ZERO_MODE();
_MM_SET_FLUSH_ZERO_MODE(_MM_FLUSH_ZERO_ON);
}
ScopedFlushToZero::~ScopedFlushToZero() {
ScopedFlushToZero::~ScopedFlushToZero() noexcept {
if (old_ftz_mode) {
_MM_SET_FLUSH_ZERO_MODE(*old_ftz_mode);
}
}
ScopedFlushToZero::ScopedFlushToZero(ScopedFlushToZero&& o)
ScopedFlushToZero::ScopedFlushToZero(ScopedFlushToZero&& o) noexcept
: old_ftz_mode(std::move(o.old_ftz_mode)) {
o.old_ftz_mode.reset();
}
ScopedFlushToZero& ScopedFlushToZero::operator=(ScopedFlushToZero&& o) {
ScopedFlushToZero& ScopedFlushToZero::operator=(
ScopedFlushToZero&& o) noexcept {
old_ftz_mode = std::move(o.old_ftz_mode);
o.old_ftz_mode.reset();