tree 48102e69b4db1fbd0b1513df225e05fd06bb1612
parent cc41fa8da9b9e9d23221d3be47a80409a89732d4
author Johannes Sixt <johannes.sixt@telecom.at> 1192823280 +0200
committer Shawn O. Pearce <spearce@spearce.org> 1192944641 -0400

Add infrastructure to run a function asynchronously.

This adds start_async() and finish_async(), which runs a function
asynchronously. Communication with the caller happens only via pipes.
For this reason, this implementation forks off a child process that runs
the function.

[sp: Style nit fixed by removing unnecessary block on if condition
     inside of start_async()]

Signed-off-by: Johannes Sixt <johannes.sixt@telecom.at>
Signed-off-by: Shawn O. Pearce <spearce@spearce.org>