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Add support for NetBSD, FreeBSD, and OpenBSD. #313

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Add support for NetBSD, FreeBSD, and OpenBSD. #313

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37 changes: 34 additions & 3 deletions src/foundation/system_info.c
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Original file line number Diff line number Diff line change
Expand Up @@ -2,6 +2,7 @@
* system_info.c — CPU core count and RAM detection.
*
* macOS: sysctlbyname for core counts, hw.memsize for RAM.
* BSD: sysconf + sysctl(HW_PHYSMEM64 / HW_PHYSMEM).
* Linux: sysconf + sysinfo().
* Windows: GetSystemInfo + GlobalMemoryStatusEx.
*
Expand All @@ -21,7 +22,11 @@ enum { DEFAULT_CORES = 1, MIN_WORKERS = 1 };
#include <windows.h>
#elif defined(__APPLE__)
#include <sys/sysctl.h>
#elif !defined(_WIN32) /* Linux */
#elif defined(__NetBSD__) || defined(__FreeBSD__) || defined(__OpenBSD__)
#include <unistd.h>
#include <sys/types.h>
#include <sys/sysctl.h>
#else /* Linux */
#include <unistd.h>
#include <sys/sysinfo.h>

Expand Down Expand Up @@ -72,7 +77,31 @@ static cbm_system_info_t detect_system_macos(void) {
return info;
}

#elif !defined(_WIN32) /* Linux */
#elif defined(__NetBSD__) || defined(__FreeBSD__) || defined(__OpenBSD__)

static cbm_system_info_t detect_system_bsd(void) {
cbm_system_info_t info;
memset(&info, 0, sizeof(info));

long nprocs = sysconf(_SC_NPROCESSORS_ONLN);
info.total_cores = nprocs > 0 ? (int)nprocs : 1;
info.perf_cores = info.total_cores;

#if defined(__OpenBSD__)
int mib[2] = { CTL_HW, HW_PHYSMEM };
#else
int mib[2] = { CTL_HW, HW_PHYSMEM64 };
#endif
uint64_t physmem = 0;
size_t len = sizeof(physmem);
if (sysctl(mib, 2, &physmem, &len, NULL, 0) == 0 && physmem > 0) {
info.total_ram = (size_t)physmem;
}

return info;
}

#else /* Linux */

static cbm_system_info_t detect_system_linux(void) {
cbm_system_info_t info;
Expand All @@ -90,7 +119,7 @@ static cbm_system_info_t detect_system_linux(void) {
return info;
}

#endif /* __APPLE__ / Linux */
#endif /* __APPLE__ / BSD / Linux */

/* ── Windows detection ───────────────────────────────────────────── */

Expand Down Expand Up @@ -128,6 +157,8 @@ cbm_system_info_t cbm_system_info(void) {
cached_info = detect_system_windows();
#elif defined(__APPLE__)
cached_info = detect_system_macos();
#elif defined(__NetBSD__) || defined(__FreeBSD__) || defined(__OpenBSD__)
cached_info = detect_system_bsd();
#else
cached_info = detect_system_linux();
#endif
Expand Down