OLD | NEW |
(Empty) | |
| 1 // Copyright (c) 2014 The Chromium Authors. All rights reserved. |
| 2 // Use of this source code is governed by a BSD-style license that can be |
| 3 // found in the LICENSE file. |
| 4 |
| 5 #include "fake_var_manager.h" |
| 6 |
| 7 #include "gtest/gtest.h" |
| 8 |
| 9 FakeVarManager::FakeVarManager() : debug(false), next_id_(1) {} |
| 10 |
| 11 FakeVarManager::~FakeVarManager() { |
| 12 // The ref counts for all vars should be zero. |
| 13 for (VarMap::const_iterator iter = var_map_.begin(); iter != var_map_.end(); |
| 14 ++iter) { |
| 15 const FakeVarData& var_data = iter->second; |
| 16 EXPECT_EQ(0, var_data.ref_count) << "Non-zero refcount on " |
| 17 << Describe(var_data); |
| 18 } |
| 19 } |
| 20 |
| 21 FakeVarData* FakeVarManager::CreateVarData() { |
| 22 Id id = next_id_++; |
| 23 FakeVarData data; |
| 24 data.id = id; |
| 25 data.ref_count = 1; |
| 26 var_map_[id] = data; |
| 27 return &var_map_[id]; |
| 28 } |
| 29 |
| 30 void FakeVarManager::AddRef(PP_Var var) { |
| 31 // From ppb_var.h: |
| 32 // AddRef() adds a reference to the given var. If this is not a refcounted |
| 33 // object, this function will do nothing so you can always call it no matter |
| 34 // what the type. |
| 35 |
| 36 FakeVarData* var_data = GetVarData(var); |
| 37 if (!var_data) |
| 38 return; |
| 39 |
| 40 EXPECT_GT(var_data->ref_count, 0) |
| 41 << "AddRefing freed " << Describe(*var_data); |
| 42 var_data->ref_count++; |
| 43 if (debug) |
| 44 printf("AddRef of %s [new refcount=%d]\n", |
| 45 Describe(*var_data).c_str(), |
| 46 var_data->ref_count); |
| 47 } |
| 48 |
| 49 std::string FakeVarManager::Describe(const FakeVarData& var_data) { |
| 50 std::stringstream rtn; |
| 51 switch (var_data.type) { |
| 52 case PP_VARTYPE_STRING: |
| 53 rtn << "String with id " << var_data.id << |
| 54 " with value \"" << var_data.string_value << "\""; |
| 55 break; |
| 56 case PP_VARTYPE_ARRAY: |
| 57 rtn << "Array of size " << var_data.array_value.size() |
| 58 << " with id " << var_data.id; |
| 59 break; |
| 60 case PP_VARTYPE_ARRAY_BUFFER: |
| 61 rtn << "ArrayBuffer of size " << var_data.buffer_value.length |
| 62 << " with id " << var_data.id; |
| 63 break; |
| 64 default: |
| 65 rtn << "resource of type " << var_data.type |
| 66 << " with id " << var_data.id; |
| 67 break; |
| 68 } |
| 69 return rtn.str(); |
| 70 } |
| 71 |
| 72 void FakeVarManager::DestroyVarData(FakeVarData* var_data) { |
| 73 // Release each PP_Var in the array |
| 74 |
| 75 switch (var_data->type) { |
| 76 case PP_VARTYPE_ARRAY: { |
| 77 std::vector<PP_Var>& vector = var_data->array_value; |
| 78 for (std::vector<PP_Var>::iterator it = vector.begin(); |
| 79 it != vector.end(); ++it) { |
| 80 Release(*it); |
| 81 } |
| 82 vector.clear(); |
| 83 break; |
| 84 } |
| 85 case PP_VARTYPE_ARRAY_BUFFER: |
| 86 free(var_data->buffer_value.ptr); |
| 87 var_data->buffer_value.ptr = NULL; |
| 88 var_data->buffer_value.length = 0; |
| 89 default: |
| 90 break; |
| 91 } |
| 92 } |
| 93 |
| 94 FakeVarData* FakeVarManager::GetVarData(PP_Var var) { |
| 95 VarMap::iterator iter = var_map_.find(var.value.as_id); |
| 96 if (iter == var_map_.end()) |
| 97 return NULL; |
| 98 return &iter->second; |
| 99 } |
| 100 |
| 101 void FakeVarManager::Release(PP_Var var) { |
| 102 // From ppb_var.h: |
| 103 // Release() removes a reference to given var, deleting it if the internal |
| 104 // reference count becomes 0. If the given var is not a refcounted object, |
| 105 // this function will do nothing so you can always call it no matter what |
| 106 // the type. |
| 107 FakeVarData* var_data = GetVarData(var); |
| 108 if (!var_data) { |
| 109 if (debug) |
| 110 printf("Releasing simple var\n"); |
| 111 return; |
| 112 } |
| 113 |
| 114 EXPECT_GT(var_data->ref_count, 0) |
| 115 << "Releasing freed " << Describe(*var_data); |
| 116 |
| 117 var_data->ref_count--; |
| 118 if (debug) |
| 119 printf("Released %s [new refcount=%d]\n", |
| 120 Describe(*var_data).c_str(), |
| 121 var_data->ref_count); |
| 122 |
| 123 if (var_data->ref_count == 0) |
| 124 DestroyVarData(var_data); |
| 125 } |
OLD | NEW |