Why does the parent process explicitly recycle the resource of child process by using waitpid?
0
Why does the parent process have to explicitly recycle the resource of child process by using waitpid?
I can not understand why linux designs in this way.
I think it will be much simpler if the resource is recycled by kernel when the child process exit.
linux linux-kernel
asked Jan 19 at 12:00
max maxmax max
1
add a comment |
0
Why does the parent process have to explicitly recycle the resource of child process by using waitpid?
I can not understand why linux designs in this way.
I think it will be much simpler if the resource is recycled by kernel when the child process exit.
linux linux-kernel
asked Jan 19 at 12:00
max maxmax max
1
"I think it will be much simpler if the resource is recycled by kernel when the child process exit." - At some point, the parent process would want to know about the child state. What should the parent do, if the child is completely destroyed?
– Tsyvarev
Jan 19 at 14:34
I don't think parent process should have to explicitly recycle the resource of child process.waitpidjust a kind of synchronization or communication between parent and child.
– Chris Tsui
Jan 20 at 11:02
add a comment |
0
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Why does the parent process have to explicitly recycle the resource of child process by using waitpid?
I can not understand why linux designs in this way.
I think it will be much simpler if the resource is recycled by kernel when the child process exit.
linux linux-kernel
asked Jan 19 at 12:00
max maxmax max
1
Why does the parent process have to explicitly recycle the resource of child process by using waitpid?
I can not understand why linux designs in this way.
I think it will be much simpler if the resource is recycled by kernel when the child process exit.
linux linux-kernel
linux linux-kernel
asked Jan 19 at 12:00
max maxmax max
1
asked Jan 19 at 12:00
max maxmax max
1
asked Jan 19 at 12:00
max maxmax max
1
asked Jan 19 at 12:00
max maxmax max
1
asked Jan 19 at 12:00
max maxmax max
1
1
"I think it will be much simpler if the resource is recycled by kernel when the child process exit." - At some point, the parent process would want to know about the child state. What should the parent do, if the child is completely destroyed?
– Tsyvarev
Jan 19 at 14:34
I don't think parent process should have to explicitly recycle the resource of child process.waitpidjust a kind of synchronization or communication between parent and child.
– Chris Tsui
Jan 20 at 11:02
add a comment |
"I think it will be much simpler if the resource is recycled by kernel when the child process exit." - At some point, the parent process would want to know about the child state. What should the parent do, if the child is completely destroyed?
– Tsyvarev
Jan 19 at 14:34
I don't think parent process should have to explicitly recycle the resource of child process.waitpidjust a kind of synchronization or communication between parent and child.
– Chris Tsui
Jan 20 at 11:02
"I think it will be much simpler if the resource is recycled by kernel when the child process exit." - At some point, the parent process would want to know about the child state. What should the parent do, if the child is completely destroyed?
– Tsyvarev
Jan 19 at 14:34
"I think it will be much simpler if the resource is recycled by kernel when the child process exit." - At some point, the parent process would want to know about the child state. What should the parent do, if the child is completely destroyed?
– Tsyvarev
Jan 19 at 14:34
I don't think parent process should have to explicitly recycle the resource of child process.
waitpid just a kind of synchronization or communication between parent and child.– Chris Tsui
Jan 20 at 11:02
I don't think parent process should have to explicitly recycle the resource of child process.
waitpid just a kind of synchronization or communication between parent and child.– Chris Tsui
Jan 20 at 11:02
add a comment |
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"I think it will be much simpler if the resource is recycled by kernel when the child process exit." - At some point, the parent process would want to know about the child state. What should the parent do, if the child is completely destroyed?
– Tsyvarev
Jan 19 at 14:34
I don't think parent process should have to explicitly recycle the resource of child process.
waitpidjust a kind of synchronization or communication between parent and child.– Chris Tsui
Jan 20 at 11:02