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        "There are currently two ways to implement threading in FreeBSD. The first way is M:N threading followed by the 1:1 threading model. The default library used is M:N threading (<literal>libpthread</literal>) and you can switch at runtime to 1:1 threading (<literal>libthr</literal>). The plan is to switch to 1:1 library by default soon. Although those two libraries use the same kernel primitives, they are accessed through different API(es). The M:N library uses the <literal>kse_*</literal> family of syscalls while the 1:1 library uses the <literal>thr_*</literal> family of syscalls. Due to this, there is no general concept of thread ID shared between kernel and userspace. Of course, both threading libraries implement the pthread thread ID API. Every kernel thread (as described by <literal>struct thread</literal>) has td tid identifier but this is not directly accessible from userland and solely serves the kernel's needs. It is also used for 1:1 threading library as pthread's thread ID but handling of this is internal to the library and cannot be relied on."
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    "previous_source": "There are currently two ways to implement threading in FreeBSD. The first way is M:N threading followed by the 1:1 threading model. The default library used is M:N threading (<literal>libpthread</literal>) and you can switch at runtime to 1:1 threading (<literal>libthr</literal>). The plan is to switch to 1:1 library by default soon. Although those two libraries use the same kernel primitives, they are accessed through different API(es). The M:N library uses the <literal>kse_*</literal> family of syscalls while the 1:1 library uses the <literal>thr_*</literal> family of syscalls. Because of this, there is no general concept of thread ID shared between kernel and userspace. Of course, both threading libraries implement the pthread thread ID API. Every kernel thread (as described by <literal>struct thread</literal>) has td tid identifier but this is not directly accessible from userland and solely serves the kernel's needs. It is also used for 1:1 threading library as pthread's thread ID but handling of this is internal to the library and cannot be relied on.",
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        "Atualmente existem duas maneiras de implementar o threading no FreeBSD. A primeira maneira é o threading M:N seguido pelo modelo de threading 1:1. A biblioteca padrão usada é o threading M:N (<literal>libpthread</literal>) e você pode alternar no tempo de execução para threading 1:1 (<literal>libthr</literal>). O plano é mudar para a biblioteca 1:1 por padrão em breve. Embora essas duas bibliotecas usem as mesmas primitivas do kernel, elas são acessadas por API(s) diferentes. A biblioteca M:N usa a família <literal>kse_*</literal> das syscalls enquanto a biblioteca 1:1 usa a família <literal>thr_*</literal> das syscalls. Por causa disso, não existe um conceito geral de ID de threading compartilhado entre o kernel e o espaço do usuário. Obviamente, as duas bibliotecas de threads implementam a API de ID de threading pthread. Todo threading do kernel (como descrito por <literal>struct thread</literal>) possui identificadores td tid, mas isso não é diretamente acessível a partir do espaço do usuário e serve apenas as necessidades do kernel. Ele também é usado para a biblioteca de threading 1:1 como o ID de threading do pthread, mas a manipulação desta é interna à biblioteca e não pode ser confiável."
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    "timestamp": "2021-01-09T14:33:01.575815Z"
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