39 lines
948 B
C++
39 lines
948 B
C++
$NetBSD$
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--- base/process/process_metrics_freebsd.cc.orig 2017-02-02 02:02:47.000000000 +0000
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+++ base/process/process_metrics_freebsd.cc
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@@ -13,6 +13,9 @@
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#include "base/memory/ptr_util.h"
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#include "base/sys_info.h"
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+#include <unistd.h> /* getpagesize() */
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+#include <fcntl.h> /* O_RDONLY */
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+
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namespace base {
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ProcessMetrics::ProcessMetrics(ProcessHandle process)
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@@ -122,4 +125,23 @@ size_t GetSystemCommitCharge() {
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return mem_total - (mem_free*pagesize) - (mem_inactive*pagesize);
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}
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+int GetNumberOfThreads(ProcessHandle process) {
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+ // Taken from FreeBSD top (usr.bin/top/machine.c)
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+
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+ kvm_t* kd = kvm_open(NULL, "/dev/null", NULL, O_RDONLY, "kvm_open");
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+ if (kd == NULL)
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+ return 0;
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+
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+ struct kinfo_proc* pbase;
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+ int nproc;
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+ pbase = kvm_getprocs(kd, KERN_PROC_PID, process, &nproc);
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+ if (pbase == NULL)
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+ return 0;
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+
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+ if (kvm_close(kd) == -1)
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+ return 0;
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+
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+ return nproc;
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+}
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+
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} // namespace base
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