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authorDenys Vlasenko2014-02-21 12:55:43 +0100
committerDenys Vlasenko2014-02-21 12:55:43 +0100
commit192c14bd87aa2ea930bc4a3954a07c1cab46a3cc (patch)
tree421f63ff5a2ba946c85b1634d252c6eba545920d /examples/var_service/README
parent265a74b9834cfe8a9d25ce1cf4d4db509f9a44f2 (diff)
downloadbusybox-192c14bd87aa2ea930bc4a3954a07c1cab46a3cc.zip
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Improve examples/var_service READMEs
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
Diffstat (limited to 'examples/var_service/README')
-rw-r--r--examples/var_service/README13
1 files changed, 11 insertions, 2 deletions
diff --git a/examples/var_service/README b/examples/var_service/README
index 06817c8..9ad1b25 100644
--- a/examples/var_service/README
+++ b/examples/var_service/README
@@ -9,6 +9,15 @@ env - PATH=... <other vars=...> runsvdir /var/service &
from one of system startup scripts. (Google "man runsvdir" and "man runsv"
for more info about these tools).
+You can try or debug an individual service by running its SERVICE_DIR/run script.
+In this case, its stdout and stderr go to your terminal.
+
+You can also run "runsv SERVICE_DIR", which runs both the service
+and its logger service (SERVICE_DIR/log/run) if logger service exists.
+If logger service exists, the output will go to it instead of the terminal.
+
+"runsvdir DIR" merely runs "runsv SERVICE_DIR" for every subdirectory in DIR.
+
Some existing examples:
var_service/dhcp_if -
@@ -47,8 +56,8 @@ This even works while fw service runs: if dhcp signals fw to (re)start
while fw runs, fw will not stop after its execution, but will re-execute once,
picking up dhcp's new configuration.
This is achieved very simply by having
-# Make ourself one-shot
-sv o .
+ # Make ourself one-shot
+ sv o .
at the very beginning of fw/run script, not at the end.
Therefore, any "sv u /var/run/service/fw" command by any other
script "undoes" o(ne-shot) command if fw still runs, thus