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Base: Add man pages for gettid(), getpid(), and getppid()

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Andreas Kling 2020-07-05 19:37:43 +02:00
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Base/usr/share/man/man2/gettid.md Normal file
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## Name
gettid - get current thread ID
## Synopsis
```**c++
#include <unistd.h>
int gettid();
```
## Description
Returns the TID (thread ID) of the calling thread. The first thread in a process has the same TID and PID. Subsequently spawned threads will have unique thread ID's, but all share the same PID.
## Return value
The thread ID of the calling thread.
## Error
None.
## See also
* [`getpid`(2)](getpid.md)
* [`getppid`(2)](getppid.md)