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| author | cinap_lenrek <cinap_lenrek@gmx.de> | 2013-10-17 08:26:05 +0200 |
|---|---|---|
| committer | cinap_lenrek <cinap_lenrek@gmx.de> | 2013-10-17 08:26:05 +0200 |
| commit | e30f50283c60e21763aa28def66deab70ae12187 (patch) | |
| tree | aa363f0055ddf293b894c3141820fdc35f8dec40 | |
| parent | 52fc6d50d49b95e4598e2c9bb65e15e37035bf28 (diff) | |
| download | plan9front-e30f50283c60e21763aa28def66deab70ae12187.tar.xz | |
9p(2): correct usage for srvrelease()/srvacquire()
the process is *NOT* allowed to exit after a srvrelease() as
it still holds a reference (srv->rref) preventing the srv
from beging freed/ended (listensrv) before srvacquire().
| -rw-r--r-- | sys/man/2/9p | 12 |
1 files changed, 6 insertions, 6 deletions
diff --git a/sys/man/2/9p b/sys/man/2/9p index dcff3e44a..2fbd944e6 100644 --- a/sys/man/2/9p +++ b/sys/man/2/9p @@ -363,13 +363,13 @@ block, arranging for alternate processes to handle them is suggested. .PP .I Srvrelease -detaches the calling process from the server loop and -if neccesary spawns a new process to handle 9p requests. -When released, the process is free to do blocking work -or even exit because it now running in parallel to the -server loop. +temporarily releases the calling process from the server +loop and if neccesary spawns a new process to handle 9p +requests. When released, the process can do blocking work +that would otherwise halt processing of 9p requests. .I Srvacquire -joins the calling (released) process with the server loop. +rejoins the calling process with the server loop after +a srvrelease. .PP The constraints on the service functions are as follows. These constraints are checked while the server executes. |