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[kernel] Add endpoint object and related syscalls

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The endpoint object adds synchronous IPC. Also added the wait-type of
'object' to threads.
This commit is contained in:
Justin C. Miller
2020-09-07 01:09:56 -07:00
parent 53d260cc6e
commit 8534d8d3c5
13 changed files with 368 additions and 49 deletions
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11
src/kernel/objects/thread.h
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@@ -35,7 +35,7 @@ class thread :
public kobject
{
public:
enum class wait_type : uint8_t { none, signal, time };
enum class wait_type : uint8_t { none, signal, time, object };
enum class state : uint8_t {
ready = 0x01,
loading = 0x02,
@@ -78,6 +78,10 @@ public:
/// \arg t Clock value to wait for
void wait_on_time(uint64_t t);
/// Block the thread, waiting on the given object
/// \arg o The ojbect that should wake this thread
void wait_on_object(kobject *o);
/// Wake the thread if it is waiting on signals.
/// \arg obj Object that changed signals
/// \arg signals Signal state of the object
@@ -89,6 +93,11 @@ public:
/// \returns True if this action unblocked the thread
bool wake_on_time(uint64_t now);
/// Wake the thread if it is waiting on the given object.
/// \arg o Object trying to wake the thread
/// \returns True if this action unblocked the thread
bool wake_on_object(kobject *o);
/// Wake the thread with a given result code.
/// \arg obj Object that changed signals
/// \arg result Result code to return to the thread