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Patch get_total_memory() for freebsd compatibility (#172)

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David Steele 2017-09-25 16:55:15 -04:00 committed by Sebastian Meßmer
parent 3d52f6a8c4
commit 18788bc3f8
1 changed files with 2 additions and 2 deletions
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src/cpp-utils/system/get_total_memory.cpp
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@ -8,13 +8,13 @@ namespace cpputils{
namespace system { namespace system {
uint64_t get_total_memory() { uint64_t get_total_memory() {
uint64_t mem; uint64_t mem;
#ifdef __APPLE__ #if defined(__APPLE__)
size_t size = sizeof(mem); size_t size = sizeof(mem);
int result = sysctlbyname("hw.memsize", &mem, &size, nullptr, 0); int result = sysctlbyname("hw.memsize", &mem, &size, nullptr, 0);
if (0 != result) { if (0 != result) {
throw std::runtime_error("sysctlbyname syscall failed"); throw std::runtime_error("sysctlbyname syscall failed");
} }
#elif __linux__ || __FreeBSD__ #elif defined(__linux__) || defined(__FreeBSD__)
long numRAMPages = sysconf(_SC_PHYS_PAGES); long numRAMPages = sysconf(_SC_PHYS_PAGES);
long pageSize = sysconf(_SC_PAGESIZE); long pageSize = sysconf(_SC_PAGESIZE);
mem = numRAMPages * pageSize; mem = numRAMPages * pageSize;