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atomic: fix compiler warning with string (#164)

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the compiler tries to optimize this and inlines the +=, which might involve raw memcpy operations,
and in doing so, it thinks there is a chance that the internal buffer doesnt have enough space.
use ostringstream instead, and return the string from that.
This commit is contained in:
Tom Englund 2025-04-10 14:47:15 +02:00 • committed by GitHub
parent 1d2dbd72c2
commit c8282f4982
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1 changed files with 9 additions and 8 deletions
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17
src/backend/drm/impl/Atomic.cpp
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@ -5,6 +5,7 @@
#include <xf86drm.h>
#include <xf86drmMode.h>
#include <sys/mman.h>
#include <sstream>
#include "Shared.hpp"
#include "aquamarine/output/Output.hpp"
@ -223,20 +224,20 @@ void Aquamarine::CDRMAtomicRequest::addConnectorCursor(Hyprutils::Memory::CShare
bool Aquamarine::CDRMAtomicRequest::commit(uint32_t flagssss) {
static auto flagsToStr = [](uint32_t flags) {
std::string result;
std::ostringstream result;
if (flags & DRM_MODE_ATOMIC_ALLOW_MODESET)
result += "ATOMIC_ALLOW_MODESET ";
result << "ATOMIC_ALLOW_MODESET ";
if (flags & DRM_MODE_ATOMIC_NONBLOCK)
result += "ATOMIC_NONBLOCK ";
result << "ATOMIC_NONBLOCK ";
if (flags & DRM_MODE_ATOMIC_TEST_ONLY)
result += "ATOMIC_TEST_ONLY ";
result << "ATOMIC_TEST_ONLY ";
if (flags & DRM_MODE_PAGE_FLIP_EVENT)
result += "PAGE_FLIP_EVENT ";
result << "PAGE_FLIP_EVENT ";
if (flags & DRM_MODE_PAGE_FLIP_ASYNC)
result += "PAGE_FLIP_ASYNC ";
result << "PAGE_FLIP_ASYNC ";
if (flags & (~DRM_MODE_ATOMIC_FLAGS))
result += " + invalid...";
return result;
result << " + invalid...";
return result.str();
};
if (failed) {