39 lines
1.2 KiB
C++
39 lines
1.2 KiB
C++
#include <boost/interprocess/managed_shared_memory.hpp>
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#include <cstdlib>
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#define AudioServerShmemSize (16 * 1024 * 1024)
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using namespace boost::interprocess;
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class audio_server_shmem {
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private:
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audio_server_shmem(bool is_server) {
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if (is_server) {
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const char *size = std::getenv("AUDIO_SERVER_SHMEM_SIZE");
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int int_size = AudioServerShmemSize;
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if (size) {
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int_size = std::atoi(size);
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if (int_size <= 0) {
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int_size = AudioServerShmemSize;
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}
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}
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shm_ = new managed_shared_memory(open_or_create, "AudioServiceShmem", int_size);
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} else {
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shm_ = new managed_shared_memory(open_only, "AudioServiceShmem");
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}
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}
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~audio_server_shmem() {
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delete shm_;
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}
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static managed_shared_memory *shm_;
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public:
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audio_server_shmem(const audio_server_shmem &) = delete;
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audio_server_shmem(audio_server_shmem &&) = delete;
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audio_server_shmem& operator=(const audio_server_shmem&) = delete;
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audio_server_shmem& operator=(audio_server_shmem&&) = delete;
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static managed_shared_memory * getInstance(bool is_server = false) {
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static audio_server_shmem instance(is_server);
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return shm_;
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}
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};
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