diff options
Diffstat (limited to 'src')
| -rw-r--r-- | src/Root.cpp | 36 |
1 files changed, 36 insertions, 0 deletions
diff --git a/src/Root.cpp b/src/Root.cpp index 62d50c28c..f100a242a 100644 --- a/src/Root.cpp +++ b/src/Root.cpp @@ -20,6 +20,11 @@ #endif #elif defined(__APPLE__) #include <mach/mach.h> + #elif defined(__FreeBSD__) + #include <kvm.h> + #include <fcntl.h> + #include <sys/sysctl.h> + #include <sys/user.h> #endif #endif @@ -885,6 +890,37 @@ int cRoot::GetPhysicalRAMUsage(void) return static_cast<int>(t_info.resident_size / 1024); } return -1; + #elif defined (__FreeBSD__) + /* + struct rusage self_usage; + int status = getrusage(RUSAGE_SELF, &self_usage); + if (!status) + { + return static_cast<int>(self_usage.ru_maxrss); + } + return -1; + */ + // Good to watch: https://www.youtube.com/watch?v=Os5cK0H8EOA - getrusage. + // Unfortunately, it only gives peak memory usage a.k.a max resident set size + // So it is better to use FreeBSD kvm function to get the size of resident pages. + + static kvm_t* kd = NULL; + + if (kd == NULL) + { + kd = kvm_open(NULL, "/dev/null", NULL, O_RDONLY, "kvm_open"); // returns a descriptor used to access kernel virtual memory + } + if (kd != NULL) + { + int pc = 0; // number of processes found + struct kinfo_proc* kp; + kp = kvm_getprocs(kd, KERN_PROC_PID, getpid(), &pc); + if ((kp != NULL) && (pc >= 1)) + { + return static_cast<int>(kp->ki_rssize * getpagesize() / 1024); + } + } + return -1; #else LOGINFO("%s: Unknown platform, cannot query memory usage", __FUNCTION__); return -1; |