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Difference between handle to the thread HANDLE and thread identifier pthread_t


 
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Old 10-18-2011
Difference between handle to the thread HANDLE and thread identifier pthread_t

This question might be silly but its confusing me a bit:
What is the difference between handle to the thread HANDLE and thread identifier pthread_t?

---------- Post updated at 01:52 PM ---------- Previous update was at 01:48 PM ----------

Sorry I saw details and HANDLE is in windows and pthread_t is in unix.
 

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PTHREAD_SUSPEND_NP(3)					   BSD Library Functions Manual 				     PTHREAD_SUSPEND_NP(3)

NAME
pthread_suspend_np, pthread_resume_np -- suspend/resume the given thread LIBRARY
POSIX Threads Library (libpthread, -lpthread) SYNOPSIS
#include <pthread.h> int pthread_suspend_np(pthread_t thread); int pthread_resume_np(pthread_t thread); DESCRIPTION
The pthread_suspend_np() function suspends the thread given as argument. If thread is the currently running thread as returned by pthread_self(3), the function fails and returns EDEADLK. Otherwise, it removes the named thread from the running queue, and adds it to the suspended queue. The thread will remain blocked until pthread_resume_np() is called on it. In other words, pthread_resume_np() resumes the thread given as argument, if it was suspended. RETURN VALUES
Both functions return 0 on success and an error number indicating the reason for the failure. COMPATIBILITY
These functions are non-standard extensions. ERRORS
The pthread_suspend_np() function may fail if: [EDEADLK] The thread requested to suspend was the currently running thread. [ESRCH] The supplied thread was invalid. The pthread_resume_np() function may fail if: [ESRCH] The supplied thread was invalid. NOTES
Some pthread_suspend_np() implementations may allow suspending the current thread. This is dangerous, because the semantics of the function would then require the scheduler to schedule another thread, causing a thread context switch. Since that context switch can happen in a sig- nal handler by someone calling pthread_suspend_np() in a signal handler, this is currently not allowed. In pthread_resume_np() the NetBSD implementation does not check if the thread argument is not already suspended. Some implementations might return an error condition if pthread_resume_np() is called on a non-suspended thread. SEE ALSO
pthread_attr_setcreatesuspend_np(3), pthread_self(3) BSD
July 9, 2010 BSD

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