Portable playback device power management

A portable playback device comprising:

• one or more speakers;
• one or more amplifiers configured to drive the one or more speakers;
• a battery;
• a communications interface configured to facilitate communication over at least one network;
• one or more processors;
• and
• at least one non-transitory computer-readable medium comprising program instructions that are executable by the one or more processors such that the portable playback device is configured to
• execute an operating system,
• execute one or more programs of a plurality of programs, at least one program of the plurality of programs being a control program that configures the portable playback device to playback audio content,
• generate one or more messages via execution of the one or more programs, the one or more messages indicating one or more resume times of the one or more programs,
• determine, based on the one or more messages, that each program of the one or more programs is ready to suspend execution,
• set a timeout trigger based on the one or more resume times,
• suspend execution of the one or more programs and the operating system,
• detect one or more triggers of a plurality of triggers to resume execution of the one or more programs and the operating system, the plurality of triggers including the timeout trigger,
• resume, based on detection of the one or more triggers, execution of the one or more programs and the operating system, and
• playback, via execution of the control program, the audio content through the one or more speakers and the one or more amplifiers.

A method of power management method executed by a portable playback device, the method comprising:

• executing an operating system;
• executing one or more programs of a plurality of programs, the plurality of programs comprising a control program that configures the portable playback device to playback audio content;
• generating one or more messages via execution of the one or more programs, the one or more messages indicating one or more resume times of the one or more programs;
• determining, based on the one or more messages, that each program of the one or more programs is ready to suspend execution;
• setting a timeout trigger based on the one or more resume times;
• suspending execution of the one or more programs and the operating system;
• detecting one or more triggers of a plurality of triggers to resume execution of the one or more programs and the operating system, the plurality of triggers including the timeout trigger;
• resuming, based on detection of the one or more triggers, execution of the one or more programs and the operating system;
• and
• playing back, via execution of the control program, the audio content via one or more speakers and one or more amplifiers.

A non-transitory computer readable medium storing instructions executable by one or more processors to cause a portable playback device to execute a power management method, the instructions comprising instructions to:

• execute an operating system;
• execute one or more programs of a plurality of programs, at least one program of the plurality of programs being a control program that configures the portable playback device to playback audio content;
• generate one or more messages via execution of the one or more programs, the one or more messages indicating one or more resume times of the one or more programs;
• determine, based on the one or more messages, that each program of the one or more programs is ready to suspend execution;
• set a timeout trigger based on the one or more resume times;
• suspend execution of the one or more programs and the operating system;
• detect one or more triggers of a plurality of triggers to resume execution of the one or more programs and the operating system, the plurality of triggers including the timeout trigger;
• resume, based on detection of the one or more triggers, execution of the one or more programs and the operating system;
• and
• playback, via execution of the control program, the audio content through one or more speakers and one or more amplifiers of the portable playback device.