diff options
Diffstat (limited to 'vendor/github.com/power-devops/perfstat/procstat.go')
| -rw-r--r-- | vendor/github.com/power-devops/perfstat/procstat.go | 75 |
1 files changed, 75 insertions, 0 deletions
diff --git a/vendor/github.com/power-devops/perfstat/procstat.go b/vendor/github.com/power-devops/perfstat/procstat.go new file mode 100644 index 0000000..ecafebd --- /dev/null +++ b/vendor/github.com/power-devops/perfstat/procstat.go @@ -0,0 +1,75 @@ +// +build aix + +package perfstat + +/* +#cgo LDFLAGS: -lperfstat + +#include <libperfstat.h> +#include <string.h> +#include <stdlib.h> + +#include "c_helpers.h" +*/ +import "C" + +import ( + "fmt" + "unsafe" +) + +func ProcessStat() ([]Process, error) { + var proc *C.perfstat_process_t + var first C.perfstat_id_t + + numproc := C.perfstat_process(nil, nil, C.sizeof_perfstat_process_t, 0) + if numproc < 1 { + return nil, fmt.Errorf("perfstat_process() error") + } + + plen := C.sizeof_perfstat_process_t * C.ulong(numproc) + proc = (*C.perfstat_process_t)(C.malloc(plen)) + defer C.free(unsafe.Pointer(proc)) + C.strcpy(&first.name[0], C.CString("")) + r := C.perfstat_process(&first, proc, C.sizeof_perfstat_process_t, numproc) + if r < 0 { + return nil, fmt.Errorf("perfstat_process() error") + } + + ps := make([]Process, r) + for i := 0; i < int(r); i++ { + p := C.get_process_stat(proc, C.int(i)) + if p != nil { + ps[i] = perfstatprocess2process(p) + } + } + return ps, nil +} + +func ThreadStat() ([]Thread, error) { + var thread *C.perfstat_thread_t + var first C.perfstat_id_t + + numthr := C.perfstat_thread(nil, nil, C.sizeof_perfstat_thread_t, 0) + if numthr < 1 { + return nil, fmt.Errorf("perfstat_thread() error") + } + + thlen := C.sizeof_perfstat_thread_t * C.ulong(numthr) + thread = (*C.perfstat_thread_t)(C.malloc(thlen)) + defer C.free(unsafe.Pointer(thread)) + C.strcpy(&first.name[0], C.CString("")) + r := C.perfstat_thread(&first, thread, C.sizeof_perfstat_thread_t, numthr) + if r < 0 { + return nil, fmt.Errorf("perfstat_thread() error") + } + + th := make([]Thread, r) + for i := 0; i < int(r); i++ { + t := C.get_thread_stat(thread, C.int(i)) + if t != nil { + th[i] = perfstatthread2thread(t) + } + } + return th, nil +} |
