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Add llvm::function_ref (and a couple of uses of it), representing a type-erased reference to a callable object.

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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@208025 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Richard Smith
2014-05-06 01:01:29 +00:00
parent 9331beb910
commit 245e8bdfba
7 changed files with 153 additions and 46 deletions
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13
lib/Support/CrashRecoveryContext.cpp
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@ -301,7 +301,7 @@ void CrashRecoveryContext::Disable() {
#endif
bool CrashRecoveryContext::RunSafely(void (*Fn)(void*), void *UserData) {
bool CrashRecoveryContext::RunSafely(function_ref<void()> Fn) {
// If crash recovery is disabled, do nothing.
if (gCrashRecoveryEnabled) {
assert(!Impl && "Crash recovery context already initialized!");
@ -313,7 +313,7 @@ bool CrashRecoveryContext::RunSafely(void (*Fn)(void*), void *UserData) {
}
}
Fn(UserData);
Fn();
return true;
}
@ -334,8 +334,7 @@ const std::string &CrashRecoveryContext::getBacktrace() const {
namespace {
struct RunSafelyOnThreadInfo {
void (*Fn)(void*);
void *Data;
function_ref<void()> Fn;
CrashRecoveryContext *CRC;
bool Result;
};
@ -344,11 +343,11 @@ struct RunSafelyOnThreadInfo {
static void RunSafelyOnThread_Dispatch(void *UserData) {
RunSafelyOnThreadInfo *Info =
reinterpret_cast<RunSafelyOnThreadInfo*>(UserData);
Info->Result = Info->CRC->RunSafely(Info->Fn, Info->Data);
Info->Result = Info->CRC->RunSafely(Info->Fn);
}
bool CrashRecoveryContext::RunSafelyOnThread(void (*Fn)(void*), void *UserData,
bool CrashRecoveryContext::RunSafelyOnThread(function_ref<void()> Fn,
unsigned RequestedStackSize) {
RunSafelyOnThreadInfo Info = { Fn, UserData, this, false };
RunSafelyOnThreadInfo Info = { Fn, this, false };
llvm_execute_on_thread(RunSafelyOnThread_Dispatch, &Info, RequestedStackSize);
if (CrashRecoveryContextImpl *CRC = (CrashRecoveryContextImpl *)Impl)
CRC->setSwitchedThread();