寻求pthread_attr_t结构体默认属性值的官方文档

Hey there, I totally get wanting official, authoritative docs for the default pthread_attr_t values—third-party resources can be hit or miss. Here's where you can find the official details you need:

• POSIX Standard Specification
  This is the ultimate official source for all pthread interface behavior. When you call pthread_attr_init() to initialize a pthread_attr_t structure, the standard mandates these default values:

  • Detach state: PTHREAD_CREATE_JOINABLE (threads are joinable by default)
  • Scheduling policy: SCHED_OTHER (the default non-real-time scheduling policy)
  • Scheduling priority: 0 (the default priority for SCHED_OTHER)
  • Stack size: Implementation-defined (typically matches the process's default stack size, e.g., 8MB on most Linux systems)
  • Stack address: NULL (the kernel will automatically allocate the stack)
  • Scheduling inheritance: PTHREAD_EXPLICIT_SCHED (the thread does not inherit the creating thread's scheduling attributes)

• System-Specific Manual Pages
  On any UNIX-like system (Linux, FreeBSD, macOS, etc.), the local man pages are maintained as official system documentation. You can access them directly via your terminal:

  • Run man pthread_attr_init to see a summary of all default attributes set by the initialization function.
  • For deeper dives into individual attributes, use pages like man pthread_attr_getdetachstate, man pthread_attr_getschedpolicy, etc.—each will explicitly state the default value when the attribute hasn't been modified.

These sources are all official, maintained by standards bodies or system vendors, so you can rely on their accuracy.

内容的提问来源于stack exchange，提问作者Gennaro Arguzzi