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Call CoUninitialize after all the COM methods were used

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This commit is contained in:
Antony Polukhin
2016-12-17 11:41:55 +03:00
parent b23664a769
commit 9d1a2d652b
1 changed files with 30 additions and 18 deletions
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48
include/boost/stacktrace/detail/backend_windows.hpp
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@@ -25,12 +25,23 @@
namespace boost { namespace stacktrace { namespace detail {
class com_global_initer: boost::noncopyable {
public:
com_global_initer() BOOST_NOEXCEPT {
// We do not care about the result of the function call: any result is OK for us.
CoInitializeEx(0, COINIT_MULTITHREADED);
}
~com_global_initer() BOOST_NOEXCEPT {
CoUninitialize();
}
};
template <class T>
class com_holder: boost::noncopyable {
T* holder_;
public:
com_holder() BOOST_NOEXCEPT
com_holder(const com_global_initer&) BOOST_NOEXCEPT
: holder_(0)
{}
@@ -53,13 +64,11 @@ public:
}
};
inline bool try_init_com(com_holder<IDebugSymbols>& idebug_) BOOST_NOEXCEPT {
CoInitializeEx(0, COINIT_MULTITHREADED);
com_holder<IDebugClient> iclient;
inline bool try_init_com(com_holder<IDebugSymbols>& idebug, const com_global_initer& com) BOOST_NOEXCEPT {
com_holder<IDebugClient> iclient(com);
DebugCreate(__uuidof(IDebugClient), iclient.to_void_ptr_ptr());
com_holder<IDebugControl> icontrol;
com_holder<IDebugControl> icontrol(com);
iclient->QueryInterface(__uuidof(IDebugControl), icontrol.to_void_ptr_ptr());
const bool res1 = (S_OK == iclient->AttachProcess(
@@ -76,7 +85,7 @@ inline bool try_init_com(com_holder<IDebugSymbols>& idebug_) BOOST_NOEXCEPT {
return false;
}
const bool res = (S_OK == iclient->QueryInterface(__uuidof(IDebugSymbols), idebug_.to_void_ptr_ptr()));
const bool res = (S_OK == iclient->QueryInterface(__uuidof(IDebugSymbols), idebug.to_void_ptr_ptr()));
if (!res) {
return false;
}
@@ -105,8 +114,9 @@ backend::backend(void** memory, std::size_t size) BOOST_NOEXCEPT
std::string backend::get_name(const void* addr) {
std::string result;
com_holder<IDebugSymbols> idebug_;
if (!try_init_com(idebug_)) {
com_global_initer com_guard;
com_holder<IDebugSymbols> idebug(com_guard);
if (!try_init_com(idebug, com_guard)) {
return result;
}
const ULONG64 offset = reinterpret_cast<ULONG64>(addr);
@@ -114,7 +124,7 @@ std::string backend::get_name(const void* addr) {
char name[256];
name[0] = '\0';
ULONG size = 0;
bool res = (S_OK == idebug_->GetNameByOffset(
bool res = (S_OK == idebug->GetNameByOffset(
offset,
name,
sizeof(name),
@@ -124,7 +134,7 @@ std::string backend::get_name(const void* addr) {
if (!res && size != 0) {
result.resize(size);
res = (S_OK == idebug_->GetNameByOffset(
res = (S_OK == idebug->GetNameByOffset(
offset,
&result[0],
static_cast<ULONG>(result.size()),
@@ -144,8 +154,9 @@ std::string backend::get_name(const void* addr) {
std::string backend::get_source_file(const void* addr) {
std::string result;
com_holder<IDebugSymbols> idebug_;
if (!try_init_com(idebug_)) {
com_global_initer com_guard;
com_holder<IDebugSymbols> idebug(com_guard);
if (!try_init_com(idebug, com_guard)) {
return result;
}
const ULONG64 offset = reinterpret_cast<ULONG64>(addr);
@@ -153,7 +164,7 @@ std::string backend::get_source_file(const void* addr) {
char name[256];
name[0] = 0;
ULONG size = 0;
bool res = (S_OK == idebug_->GetLineByOffset(
bool res = (S_OK == idebug->GetLineByOffset(
offset,
0,
name,
@@ -164,7 +175,7 @@ std::string backend::get_source_file(const void* addr) {
if (!res && size != 0) {
result.resize(size);
res = (S_OK == idebug_->GetLineByOffset(
res = (S_OK == idebug->GetLineByOffset(
offset,
0,
&result[0],
@@ -187,12 +198,13 @@ std::string backend::get_source_file(const void* addr) {
std::size_t backend::get_source_line(const void* addr) {
ULONG line_num = 0;
com_holder<IDebugSymbols> idebug_;
if (!try_init_com(idebug_)) {
com_global_initer com_guard;
com_holder<IDebugSymbols> idebug(com_guard);
if (!try_init_com(idebug, com_guard)) {
return 0;
}
const bool is_ok = (S_OK == idebug_->GetLineByOffset(
const bool is_ok = (S_OK == idebug->GetLineByOffset(
reinterpret_cast<ULONG64>(addr),
&line_num,
0,