debug_go116.go

Documentation: github.com/bytedance/sonic/internal/encoder

     1  // +build go1.16,!go1.17
     2  
     3  /*
     4   * Copyright 2021 ByteDance Inc.
     5   *
     6   * Licensed under the Apache License, Version 2.0 (the "License");
     7   * you may not use this file except in compliance with the License.
     8   * You may obtain a copy of the License at
     9   *
    10   *     http://www.apache.org/licenses/LICENSE-2.0
    11   *
    12   * Unless required by applicable law or agreed to in writing, software
    13   * distributed under the License is distributed on an "AS IS" BASIS,
    14   * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
    15   * See the License for the specific language governing permissions and
    16   * limitations under the License.
    17   */
    18  
    19  package encoder
    20  
    21  import (
    22      `os`
    23      `strings`
    24      `runtime`
    25      `runtime/debug`
    26  
    27      `github.com/bytedance/sonic/internal/jit`
    28  )
    29  
    30  var (
    31      debugSyncGC  = os.Getenv("SONIC_SYNC_GC") != ""
    32      debugAsyncGC = os.Getenv("SONIC_NO_ASYNC_GC") == ""
    33  )
    34  
    35  var (
    36      _Instr_End _Instr = newInsOp(_OP_null)
    37  
    38      _F_gc       = jit.Func(runtime.GC)
    39      _F_force_gc = jit.Func(debug.FreeOSMemory)
    40      _F_println  = jit.Func(println_wrapper)
    41  )
    42  
    43  func println_wrapper(i int, op1 int, op2 int){
    44      println(i, " Intrs ", op1, _OpNames[op1], "next: ", op2, _OpNames[op2])
    45  }
    46  
    47  func (self *_Assembler) force_gc() {
    48      self.call_go(_F_gc)
    49      self.call_go(_F_force_gc)
    50  }
    51  
    52  func (self *_Assembler) debug_instr(i int, v *_Instr) {
    53      if debugSyncGC {
    54          if (i+1 == len(self.p)) {
    55              self.print_gc(i, v, &_Instr_End) 
    56          } else {
    57              next := &(self.p[i+1])
    58              self.print_gc(i, v, next)
    59              name := _OpNames[next.op()]
    60              if strings.Contains(name, "save") {
    61                  return
    62              }
    63          }
    64          self.force_gc()
    65      }
    66  }
    67
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