A thread of execution / thread control block (TCB) More...
Collaboration diagram for thread:
Data Fields | |
| struct thread * | self |
| Points to itself. | |
| dispatcher_handle_t | disp |
| Dispatcher affinity. | |
| struct tls_dtv * | tls_dtv |
| TLS thread vector. | |
| struct thread * | prev |
| Next/prev threads in list. | |
| arch_registers_state_t | regs |
| Register state snapshot. | |
| void * | stack |
| Malloced stack area. | |
| void * | stack_top |
| Stack bounds. | |
| void * | exception_stack |
| Stack for exception handling. | |
| void * | exception_stack_top |
| Bounds of exception stack. | |
| exception_handler_fn | exception_handler |
| Exception handler, or NULL. | |
| void * | userptr |
| User's thread local pointer. | |
| void * | userptrs [MAX_TLS] |
| User's thread local pointers. | |
| uintptr_t | yield_epoch |
| Yield epoch. | |
| void * | wakeup_reason |
| Value returned from block() | |
| coreid_t | coreid |
| XXX: Core ID affinity. | |
| int | return_value |
| Value returned on exit. | |
| struct thread_cond | exit_condition |
| Thread exit condition. | |
| struct thread_mutex | exit_lock |
| Protects exited state. | |
| enum thread_state | state |
| Thread state. | |
| bool | paused |
| Thread is paused (not runnable) | |
| bool | detached |
| true if detached | |
| bool | joining |
| true if someone is joining | |
| bool | in_exception |
| true if running exception handler | |
| bool | used_fpu |
| Ever used FPU? | |
| arch_registers_fpu_state_t | fpu_state |
| FPU state. | |
| void * | slab |
| Base of slab block containing this TCB. | |
| uintptr_t | id |
| User-defined thread identifier. | |
| uint32_t | token_number |
| RPC next token. | |
| uint32_t | token |
| Token to be received. | |
| struct waitset_chanstate * | channel |
| on right channel | |
| bool | rpc_in_progress |
| RPC in progress. | |
| errval_t | async_error |
| RPC async error. | |
| uint32_t | outgoing_token |
| Token of outgoing message. | |
| struct capref | recv_slots [MAX_RECV_SLOTS] |
| Queued cap recv slots. | |
| int8_t | recv_slot_count |
| number of currently queued recv slots | |
| struct waitset_chanstate * | local_trigger |
| Trigger for a local thread event. | |
Detailed Description
A thread of execution / thread control block (TCB)
NB: on some ABIs (namely x86_{32,64}), the TLS blocks for initially-loaded (i.e. not dlopen()ed) modules precede this structure in memory. Therefore it's not safe to directly malloc() or free() a thread structure.
The documentation for this class was generated from the following files:
- lib/barrelfish/include/threads_priv.h
- lib/newlib/winsup/cygwin/cygserver_ipc.h
