George Kulakowski
40 linhas
1.5 KiB
Markdown
40 linhas
1.5 KiB
Markdown
# Thread
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## NAME
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thread - runnable / computation entity
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## SYNOPSIS
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TODO
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## DESCRIPTION
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The thread object is the construct that represents a time-shared CPU execution
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context. Thread objects live associated to a particular
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[Process Object](process.md) which provides the memory and the handles to other
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objects necessary for I/O and computation.
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### Lifetime
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A thread can be created implicitly by calling `sys_process_start()`, in which
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case the new thread is the "main thread" and the thread entrypoint is defined by
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the previously loaded binary. Or it can be created by calling
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`sys_thread_create()` which takes the entrypoint as a parameter.
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A thread terminates when it `return`s from executing the routine specified as
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the entrypoint or by calling `sys_thread_exit()`.
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## SYSCALLS
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+ [thread_create](../syscalls/thread_create.md) - create a new thread within a process
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+ [thread_exit](../syscalls/thread_exit.md) - exit the current thread
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+ [thread_read_state](../syscalls/thread_read_state.md) - read register state from a thread
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+ [thread_start](../syscalls/thread_start.md) - cause a new thread to start executing
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+ [thread_write_state](../syscalls/thread_write_state.md) - modify register state of a thread
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<br>
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+ [task_resume](../syscalls/task_resume.md) - cause a suspended task to continue running
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+ [task_bind_exception_port](../syscalls/task_bind_exception_port.md) - attach an exception port to a task
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+ [task_kill](../syscalls/task_kill.md) - cause a task to stop running
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