Program occasionally terminates with User Defined signal 1
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I have a program that has signal handlers to a functions when SIGUSR1 and when SIGTERM are signaled. It works most of the time and the entire program functions normally 50% of the time (multiple signals occur per run), but occasionally I get "User defined signal 1" or "Terminated" printed out then the program exits. I have found that it occurs when the "pthread_kill(pid, SIGUSR1)" is called. Most of the time is seems the event handler works as intended, but sometimes it uses the default handler. Any guidance on possible causes would be helpful.
signals multithreading pthreads
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user9933193user9933193
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I have a program that has signal handlers to a functions when SIGUSR1 and when SIGTERM are signaled. It works most of the time and the entire program functions normally 50% of the time (multiple signals occur per run), but occasionally I get "User defined signal 1" or "Terminated" printed out then the program exits. I have found that it occurs when the "pthread_kill(pid, SIGUSR1)" is called. Most of the time is seems the event handler works as intended, but sometimes it uses the default handler. Any guidance on possible causes would be helpful.
signals multithreading pthreads
asked 6 mins ago
user9933193user9933193
1
New contributor
user9933193 is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.
add a comment |
I have a program that has signal handlers to a functions when SIGUSR1 and when SIGTERM are signaled. It works most of the time and the entire program functions normally 50% of the time (multiple signals occur per run), but occasionally I get "User defined signal 1" or "Terminated" printed out then the program exits. I have found that it occurs when the "pthread_kill(pid, SIGUSR1)" is called. Most of the time is seems the event handler works as intended, but sometimes it uses the default handler. Any guidance on possible causes would be helpful.
signals multithreading pthreads
asked 6 mins ago
user9933193user9933193
1
New contributor
user9933193 is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.
I have a program that has signal handlers to a functions when SIGUSR1 and when SIGTERM are signaled. It works most of the time and the entire program functions normally 50% of the time (multiple signals occur per run), but occasionally I get "User defined signal 1" or "Terminated" printed out then the program exits. I have found that it occurs when the "pthread_kill(pid, SIGUSR1)" is called. Most of the time is seems the event handler works as intended, but sometimes it uses the default handler. Any guidance on possible causes would be helpful.
signals multithreading pthreads
signals multithreading pthreads
asked 6 mins ago
user9933193user9933193
1
New contributor
user9933193 is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.
asked 6 mins ago
user9933193user9933193
1
New contributor
user9933193 is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
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asked 6 mins ago
user9933193user9933193
1
New contributor
user9933193 is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
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asked 6 mins ago
user9933193user9933193
1
asked 6 mins ago
user9933193user9933193
1
1
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user9933193 is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.
New contributor
user9933193 is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.
user9933193 is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
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