github.com/gofiber/fiber/v2@v2.47.0/internal/gopsutil/process/process_darwin_cgo.go (about)

     1  //go:build darwin && cgo
     2  // +build darwin,cgo
     3  
     4  package process
     5  
     6  // #include <stdlib.h>
     7  // #include <libproc.h>
     8  import "C"
     9  import (
    10  	"context"
    11  	"fmt"
    12  	"unsafe"
    13  )
    14  
    15  func (p *Process) ExeWithContext(ctx context.Context) (string, error) {
    16  	var c C.char // need a var for unsafe.Sizeof need a var
    17  	const bufsize = C.PROC_PIDPATHINFO_MAXSIZE * unsafe.Sizeof(c)
    18  	buffer := (*C.char)(C.malloc(C.size_t(bufsize)))
    19  	defer C.free(unsafe.Pointer(buffer))
    20  
    21  	ret, err := C.proc_pidpath(C.int(p.Pid), unsafe.Pointer(buffer), C.uint32_t(bufsize))
    22  	if err != nil {
    23  		return "", err
    24  	}
    25  	if ret <= 0 {
    26  		return "", fmt.Errorf("unknown error: proc_pidpath returned %d", ret)
    27  	}
    28  
    29  	return C.GoString(buffer), nil
    30  }