As Toronto's public library workers walk the picket line, a second group of city workers held a strike vote Tuesday.

About 23,000 members of CUPE Local 79, which represents the city's inside workers, were deciding whether to give the union a strike mandate.

Results of the vote are expected to be released Wednesday morning.

The deadline for an agreement in their labour negotiations is Saturday at 12:01 a.m. If no deal is reached, a strike or lockout could occur.

However, at a news conference Tuesday afternoon CUPE Local 79 President Tim Maguire said that workers would not be walking off the job on Saturday if they were still without a contract.

Instead, the union will stay at the table to continue contract negotiations for its members, Maguire said.

Maguire said that the union would only consider a strike if the city determines it will take away basic employment rights from the union's members.

If a strike or lockout occurs, many city buildings will likely be closed – including city-run daycares, community centres, museums and swimming pools – and many city services will likely be halted.

Services that would be affected include non-emergency public health programs, permits for parks, tennis courts and sports fields and the processing of building permits and rezoning applications.

About 2,300 Toronto Public Library workers went on strike earlier this week, meaning public libraries are closed until the labour dispute is resolved.