github.com/danbrough/mobile@v0.0.3-beta03/internal/mobileinit/mobileinit_ios.go (about)

     1  // Copyright 2015 The Go Authors. All rights reserved.
     2  // Use of this source code is governed by a BSD-style
     3  // license that can be found in the LICENSE file.
     4  
     5  package mobileinit
     6  
     7  import (
     8  	"io"
     9  	"log"
    10  	"os"
    11  	"unsafe"
    12  )
    13  
    14  /*
    15  #include <stdlib.h>
    16  #include <os/log.h>
    17  
    18  os_log_t create_os_log() {
    19  	return os_log_create("org.golang.mobile", "os_log");
    20  }
    21  
    22  void os_log_wrap(os_log_t log, const char *str) {
    23  	os_log(log, "%s", str);
    24  }
    25  */
    26  import "C"
    27  
    28  type osWriter struct {
    29  	w C.os_log_t
    30  }
    31  
    32  func (o osWriter) Write(p []byte) (n int, err error) {
    33  	cstr := C.CString(string(p))
    34  	C.os_log_wrap(o.w, cstr)
    35  	C.free(unsafe.Pointer(cstr))
    36  	return len(p), nil
    37  }
    38  
    39  func init() {
    40  	log.SetOutput(io.MultiWriter(os.Stderr, osWriter{C.create_os_log()}))
    41  }