I want to send a signal from a process to a thread that is created from another process (that have not created the thread. What I know about this that: raise : sends signal to same process pthread_kill can send singal to a thread from same prcess, i.e that created that thread. you cannot use pthread_kill to send a signal to thread from another process. kill sends signal to a process Is there any way to send signal to a thread from another process? Hope I am clear!!! NOTE: I am new to unix and threading

Reputation: 374

Is there any way to send signal to a thread from another process?

I want to send a signal from a process to a thread that is created from another process (that have not created the thread.

What I know about this that:

raise: sends signal to same process
pthread_kill can send singal to a thread from same prcess, i.e that created that thread. you cannot use pthread_kill to send a signal to thread from another process.
kill sends signal to a process

Is there any way to send signal to a thread from another process?

Hope I am clear!!! NOTE: I am new to unix and threading

Upvotes: 0

Reputation: 182609

There is an appropriately named tkill(2):

tkill, tgkill - send a signal to a thread

tgkill() sends the signal sig to the thread with the thread ID tid

You can get a tid using gettid(2).

Beware: the concept of a TID and therefore everything having to do with one is Linux-specific.

Upvotes: 1

Reputation: 672

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Should set you in the right direction

Upvotes: 0