[Bug 1324096] [NEW] dbus call needed to set multiple environment variables in a single pass

[Steve Langasek]

Public bug reported:

Currently, app launching on the Ubuntu phone involves setting multiple
environment variables with the SetEnv dbus call.  The GetEnv call only
takes one variable (key,value) at a time.  As a result, the marshalling
of the individual calls (and waiting for upstart's response) is reported
to have a measurable impact on application startup time.

We should investigate having a dbus call that allows setting multiple
environment variables at once, to reduce this overhead.

** Affects: upstart (Ubuntu)
     Importance: High
     Assignee: James Hunt (jamesodhunt)
         Status: Triaged

** Changed in: upstart (Ubuntu)
   Importance: Undecided => High

** Changed in: upstart (Ubuntu)
       Status: New => Triaged

** Changed in: upstart (Ubuntu)
    Milestone: None => ubuntu-14.07

** Changed in: upstart (Ubuntu)
     Assignee: (unassigned) => James Hunt (jamesodhunt)

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https://bugs.launchpad.net/bugs/1324096

Title:
  dbus call needed to set multiple environment variables in a single
  pass

Status in “upstart” package in Ubuntu:
  Triaged

Bug description:
  Currently, app launching on the Ubuntu phone involves setting multiple
  environment variables with the SetEnv dbus call.  The GetEnv call only
  takes one variable (key,value) at a time.  As a result, the
  marshalling of the individual calls (and waiting for upstart's
  response) is reported to have a measurable impact on application
  startup time.

  We should investigate having a dbus call that allows setting multiple
  environment variables at once, to reduce this overhead.

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