boost/context
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fcontext uses 'void*' for data transfer

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This commit is contained in:
Oliver Kowalke
2015-11-28 22:58:36 +01:00
parent c70440f0ff
commit 4d68f47767
12 changed files with 134 additions and 246 deletions
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15
example/exit.cpp
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@@ -24,39 +24,30 @@ ctx::fcontext_t fcm = 0;
ctx::fcontext_t fc1 = 0;
ctx::fcontext_t fc2 = 0;
void f1( intptr_t)
{
void f1( void *) {
std::cout << "f1: entered" << std::endl;
std::cout << "f1: call jump_fcontext( & fc1, fc2, 0)" << std::endl;
ctx::jump_fcontext( & fc1, fc2, 0);
std::cout << "f1: return" << std::endl;
}
void f2( intptr_t)
{
void f2( void *) {
std::cout << "f2: entered" << std::endl;
std::cout << "f2: call jump_fcontext( & fc2, fc1, 0)" << std::endl;
ctx::jump_fcontext( & fc2, fc1, 0);
BOOST_ASSERT( false && ! "f2: never returns");
}
int main( int argc, char * argv[])
{
int main( int argc, char * argv[]) {
std::cout << "size: 0x" << std::hex << sizeof( ctx::fcontext_t) << std::endl;
stack_allocator alloc;
void * sp1 = alloc.allocate( stack_allocator::default_stacksize());
fc1 = ctx::make_fcontext( sp1, stack_allocator::default_stacksize(), f1);
void * sp2 = alloc.allocate( stack_allocator::default_stacksize());
fc2 = ctx::make_fcontext( sp2, stack_allocator::default_stacksize(), f2);
std::cout << "main: call start_fcontext( & fcm, fc1, 0)" << std::endl;
ctx::jump_fcontext( & fcm, fc1, 0);
std::cout << "main: done" << std::endl;
BOOST_ASSERT( false && ! "main: never returns");
return EXIT_SUCCESS;
}