Merge 1252eba1cc
into 2c83a256ae
This commit is contained in:
commit
b47ad3fad1
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@ -124,6 +124,9 @@ private:
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int m_shm_fd = 0;
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int m_shm_fd = 0;
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void* m_reserved_region = nullptr;
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void* m_reserved_region = nullptr;
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std::size_t m_reserved_region_size = 0;
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std::size_t m_reserved_region_size = 0;
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#ifndef ANDROID
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std::string m_seg_name;
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#endif
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#endif
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#endif
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};
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};
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@ -30,20 +30,20 @@ MemArena::~MemArena() = default;
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void MemArena::GrabSHMSegment(size_t size, std::string_view base_name)
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void MemArena::GrabSHMSegment(size_t size, std::string_view base_name)
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{
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{
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const std::string file_name = fmt::format("/{}.{}", base_name, getpid());
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m_seg_name = fmt::format("/{}.{}", base_name, getpid());
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m_shm_fd = shm_open(file_name.c_str(), O_RDWR | O_CREAT | O_EXCL, 0600);
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m_shm_fd = shm_open(m_seg_name.c_str(), O_RDWR | O_CREAT | O_EXCL, 0600);
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if (m_shm_fd == -1)
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if (m_shm_fd == -1)
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{
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{
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ERROR_LOG_FMT(MEMMAP, "shm_open failed: {}", strerror(errno));
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ERROR_LOG_FMT(MEMMAP, "shm_open failed: {}", strerror(errno));
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return;
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return;
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}
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}
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shm_unlink(file_name.c_str());
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if (ftruncate(m_shm_fd, size) < 0)
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if (ftruncate(m_shm_fd, size) < 0)
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ERROR_LOG_FMT(MEMMAP, "Failed to allocate low memory space");
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ERROR_LOG_FMT(MEMMAP, "Failed to allocate low memory space");
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}
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}
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void MemArena::ReleaseSHMSegment()
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void MemArena::ReleaseSHMSegment()
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{
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{
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shm_unlink(m_seg_name.c_str());
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close(m_shm_fd);
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close(m_shm_fd);
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}
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}
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